Vehicle

Abstract

This invention provides a vehicle, comprising: a cab, with a support assembly at its bottom, the cab being rotatably mounted on a frame, providing a working position for normal operation on the frame and a tilted position with a preset tilting angle relative to the frame; and a drive mechanism mounted on the frame, the drive mechanism having an output end with a push-out position cooperating with the support assembly to drive the cab to the tilted position, and a retracted position when detached from the cab, wherein the cab is in the working position when the drive mechanism is in the retracted position. This invention addresses the technical problem that when the vehicle cab tilting drive mechanism is operating normally, it cannot stably detach from the cab and maintain a reliable retracted state, causing continuous resistance due to the drive mechanism bouncing with the cab during driving, thus damaging the service life of the drive mechanism and transmitting vibrations that reduce cab comfort.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically, to a vehicle. Background Technology

[0002] Existing commercial vehicles generally use hydraulic drive structures to achieve cab tilting. The traditional cab tilting drive mechanism and cab cooperation structure design is unreasonable. The drive mechanism is difficult to achieve precise position switching between working and non-working states. When the cab is in the normal working position, the output end of the drive mechanism cannot stably disengage from the cab. During vehicle operation, the drive mechanism is prone to continuous follow-up resistance due to the movement of the cab. This not only adversely affects the sealing and durability of the drive mechanism, easily causing oil leaks, lifting failures and other faults, but also transmits chassis vibrations to the cab through the drive mechanism, reducing driving comfort and affecting the stability of cab tilting and resetting operations.

[0003] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide a vehicle that solves the technical problem in the prior art where the cab tilting drive mechanism cannot stably detach from the cab and maintain a reliable stowage state during normal operation, resulting in continuous resistance generated by the drive mechanism as the cab bounces during driving, which damages the service life of the drive mechanism and transmits vibrations, reducing cab comfort.

[0005] To achieve the above objectives, according to one aspect of the present invention, a vehicle is provided, comprising: a cab, a support assembly provided at the bottom of the cab, the cab being rotatably mounted on a frame such that the cab has a working position for normal operation on the frame and a flip position for flipping relative to the frame at a preset angle; a drive mechanism mounted on the frame, the drive mechanism having an output end having an extension position that cooperates with the support assembly to drive the cab to the flip position, and an output end having a retracted position when detached from the cab, wherein when the drive mechanism is in the retracted position, the cab is in the working position.

[0006] Furthermore, the support assembly includes: a support plate connected to the vehicle frame, a receiving slot provided on the side of the support plate facing the drive mechanism for accommodating the output end of the drive mechanism, the output end of the drive mechanism cooperating with the receiving slot to drive the cab to a tilted position and a working position; and a self-locking mechanism connected to the support plate, the self-locking mechanism being rotatably disposed relative to the support plate so that the self-locking mechanism has a locking position for locking the output end of the drive mechanism in the receiving slot, and an unlocking position for releasing the output end of the drive mechanism.

[0007] Furthermore, the self-locking mechanism includes: a rotating shaft connected to a support plate and positioned above the opening side of the receiving slot; and a locking hook rotatably mounted on the rotating shaft, having a locked position and an unlocked position.

[0008] Furthermore, the locking hook has a trigger section and a locking section. During the process of the drive mechanism extending into the receiving slot, the output end of the drive mechanism contacts the trigger section to drive the locking section to rotate around the pivot until the locking section is in the locked position.

[0009] Furthermore, the drive mechanism includes a hydraulic cylinder, the cylinder body of which is mounted on the frame via a support block. The output end of the hydraulic cylinder is provided with a push rod and at least one locking pin, wherein the locking pin is protruding on the outer circumferential surface of the push rod. During the process of the hydraulic cylinder extending into the receiving slot, the push rod contacts the trigger section to drive the locking section to rotate around the pivot until the locking section engages with the locking pin and locks.

[0010] Furthermore, the self-locking mechanism includes: a preload spring, which is disposed on the rotating shaft. The preload spring is used to apply a preload force to the locking hook so that the locking hook has an initial position. When the locking hook is in the initial position, the trigger section is disposed opposite to the opening of the receiving groove and is located behind the opening of the receiving groove, and the end of the locking section is disposed away from the opening of the receiving groove.

[0011] Furthermore, the preload spring is a torsion spring.

[0012] Furthermore, when the cab is in the working position, the output end of the drive mechanism is located outside the receiving slot.

[0013] Furthermore, the self-locking mechanism includes a drive motor, which drives the lock hook to be in the locked position and the unlocked position.

[0014] Furthermore, the self-locking mechanism includes an image acquisition device, which is used to detect the position information of the output end of the drive mechanism extending into the receiving slot. When it is determined that the output end of the drive mechanism is located at the target position, the drive motor drives the locking hook to be in the locked position and the unlocked position.

[0015] By applying the technical solution of this invention, a support component is installed at the bottom of the cab, and the cab is rotatably mounted on the frame. A drive mechanism with two positions, push-out and retractable, is configured on the frame. In the push-out position, the output end of the drive mechanism reliably engages with the support component, stably driving the cab to rotate to a preset angle. In the retractable position, it completely detaches from the cab, and the cab is in its normal operating position. This effectively achieves precise and stable switching between the working and non-working states of the drive mechanism, completely eliminating the follow-up resistance generated by the cab's movement during driving. This improves the reliability and durability of the drive mechanism and cuts off the transmission path of chassis vibration to the cab via the drive mechanism, significantly enhancing the driving comfort of the cab. The simple structural design also ensures the convenience and stability of the cab's rotation and retraction operations. This solves the technical problem in existing technologies where the cab rotation drive mechanism cannot stably detach from the cab and maintain a reliable retractable state during normal cab operation, leading to continuous resistance during driving, damaging the drive mechanism's lifespan, and transmitting vibrations that reduce cab comfort. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of a first embodiment of a vehicle according to the present invention is shown;

[0018] Figure 2 A schematic diagram of the structure of a second embodiment of a vehicle according to the present invention is shown;

[0019] Figure 3 A structural schematic diagram of a third embodiment of a vehicle according to the present invention is shown.

[0020] The above figures include the following reference numerals:

[0021] 10. Driver's cab;

[0022] 11. Support components;

[0023] 111. Support plate;

[0024] 20. Drive mechanism;

[0025] 21. Top rod;

[0026] 22. Locking pin;

[0027] 30. Self-locking mechanism;

[0028] 31. Shaft;

[0029] 32. Locking hook;

[0030] 321. Trigger segment;

[0031] 322. Locking section;

[0032] 33. Preload spring;

[0033] 40. Support block. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0038] Most mainstream commercial vehicle models, including flat-nose commercial vehicles both domestically and internationally, generally employ hydraulic drive structures as the core execution solution for cab tilting to meet the needs of vehicle inspection and parts maintenance. These structures use hydraulic cylinders as the core driving element, providing lifting force through the extension and retraction of the cylinder's output end, thus driving the cab to tilt relative to the frame. This is currently the standard technology choice for cab tilting in the commercial vehicle industry. However, traditional hydraulic drive mechanisms for cab tilting have significant design flaws in their coordination with the cab. They lack a matching, precise position switching and stable disengagement mechanism for the two core states of the drive mechanism—working and non-working—resulting in a lack of precision and reliability in the switching process between the working state of tilting and the non-working state of idle storage. Specifically, after the cab completes the tilting operation and falls back to its normal working position on the frame, the output end of the drive mechanism cannot achieve a complete and stable separation from the mating structure on the cab side. The two often maintain unexpected contact, abutment, or even slight linkage. During actual driving, the cab will continuously bounce up and down and sway slightly relative to the frame due to factors such as road bumps and changes in road conditions. This passive movement will be directly transmitted to the drive mechanism that has not been detached from the cab, forcing the drive mechanism to make synchronous passive follow-up movements with the cab, thereby generating continuous follow-up resistance inside the drive mechanism and in the mating parts.

[0039] However, continuous servo resistance can trigger a series of chain problems: First, it severely impacts the structural reliability and durability of the drive mechanism itself. Continuous resistance repeatedly acts on core components such as the hydraulic cylinder seals, piston rod, and cylinder mating surfaces, causing accelerated wear, aging, and deformation of the seals. This easily leads to hydraulic cylinder oil leakage, and over time, it can cause piston rod jamming, hydraulic power transmission loss, and ultimately insufficient lifting power or even complete lifting failure of the drive mechanism, making it impossible to complete the cab tilting operation and directly affecting vehicle maintenance efficiency and reliability. Second, it disrupts the vibration damping isolation between the cab and chassis. Vibrations generated by the chassis during vehicle operation will be transmitted through the still-undisconnected drive mechanism... The rigid transmission path created by the drive mechanism directly transmits vibrations to the cab, significantly amplifying the bumps and vibrations and severely reducing passenger comfort. Thirdly, the design flaws of this structure extend to the cab's tilting and repositioning operations. Due to the lack of precise positioning and coordination mechanisms, the connection between the drive mechanism and the cab is prone to positioning deviations during operation. This leads to issues like jamming and uneven load distribution during tilting. Furthermore, the cab struggles to accurately and smoothly return to its preset working position during repositioning, and the drive mechanism cannot promptly fold away from the cab after repositioning, further reducing the overall stability, accuracy, and ease of operation of the cab tilting and repositioning. These problems have long existed in traditional commercial vehicle cab hydraulic tilting structures, significantly shortening the overall lifespan of the hydraulic drive tilting system and severely impacting the driving experience and operational convenience of commercial vehicles. They represent a critical technical challenge that urgently needs to be addressed in the design of commercial vehicle cab tilting structures.

[0040] Combination Figures 1 to 3 As shown, according to a specific embodiment of this application, a vehicle is provided, including: a driver's cab 10, a support assembly 11 provided at the bottom of the driver's cab 10, the driver's cab 10 being rotatably mounted on a frame, so that the driver's cab 10 has a working position for normal operation mounted on the frame, and a flip position for flipping relative to the frame at a preset angle; a drive mechanism 20, the drive mechanism 20 being mounted on the frame, the output end of the drive mechanism 20 having an extension position that cooperates with the support assembly 11 to drive the driver's cab 10 to the flip position, and the output end of the drive mechanism 20 having a storage position when detached from the driver's cab 10, wherein when the drive mechanism 20 is in the storage position, the driver's cab 10 is in the working position.

[0041] By applying the technical solution of this invention, a support assembly 11 is installed at the bottom of the cab 10 and the cab 10 is rotatably mounted on the frame. Simultaneously, a drive mechanism 20 with two positions (extended and retracted) is configured on the frame. This allows the output end of the drive mechanism 20 to reliably engage with the support assembly 11 in the extended position, stably driving the cab 10 to rotate to a preset angle. In the retracted position, it can completely detach from the cab 10, and at this time, the cab 10 is precisely in its normal working position. This effectively achieves precise and stable switching between the working and non-working states of the drive mechanism 20, completely eliminating the follow-up resistance generated by the drive mechanism 20 jumping with the cab 10 during driving. This design improves the reliability and durability of the drive mechanism 20, cuts off the transmission path of chassis vibration to the cab 10 via the drive mechanism 20, significantly enhances the driving comfort of the cab 10, and ensures the convenience and stability of the cab 10's flipping and resetting operations. It solves the technical problem in the prior art where the vehicle cab 10 flipping drive mechanism 20 cannot stably detach from the cab 10 and maintain a reliable storage state when the cab 10 is working normally, causing the drive mechanism 20 to generate continuous resistance as the cab 10 bounces during driving, which damages the service life of the drive mechanism 20 and reduces the comfort of the cab 10 due to the transmission of vibration.

[0042] Furthermore, the support assembly 11 includes: a support plate 111 connected to the vehicle frame, a receiving slot provided on the side of the support plate 111 facing the drive mechanism 20, the receiving slot being used to accommodate the output end of the drive mechanism 20, the output end of the drive mechanism 20 cooperating with the receiving slot to drive the cab 10 to a tilted position and a working position; and a self-locking mechanism 30 connected to the support plate 111, the self-locking mechanism 30 being rotatably disposed relative to the support plate 111, so that the self-locking mechanism 30 has a locking position that locks the output end of the drive mechanism 20 in the receiving slot, and an unlocking position that releases the output end of the drive mechanism 20.

[0043] In this embodiment, the support component 11 is designed as an integrated structure including a support plate 111 and a self-locking mechanism 30. The support plate 111 is directly connected to the frame and has a receiving slot, which can stably support the cab 10 and accurately accommodate and guide the output end of the drive mechanism 20 through the slot structure, providing a reliable positioning and transmission foundation for the cab 10 to switch between the flip position and the working position. At the same time, the self-locking mechanism 30 is rotatably connected to the support plate 111, which can firmly lock the output end of the drive mechanism 20 in the receiving slot when the lock position is engaged, ensuring the connection stability between the drive mechanism 20 and the cab 10 and effectively preventing the risk of loosening or detachment during driving or operation. When separation is required, switching to the unlock position can quickly release the output end of the drive mechanism 20, realizing reliable separation of the two and free reset of the cab 10. The overall structure is simple and compact, and the action linkage is precise, which not only ensures the smoothness and stability of the cab 10 flipping and reset operation, but also improves the overall connection reliability and operational safety of the system.

[0044] In this embodiment, the self-locking mechanism 30 includes: a rotating shaft 31, which is connected to the support plate 111 and is located above the opening side of the receiving slot; and a locking hook 32, which is rotatably disposed on the rotating shaft 31 and has a locking position and an unlocking position.

[0045] The self-locking mechanism 30 in this embodiment adopts a simple structure of rotating shaft 31 and locking hook 32. The rotating shaft 31 is connected to the support plate 111 and is precisely positioned above the opening side of the receiving slot, adapting to the rotation trajectory of the locking hook 32. The locking hook 32 is rotatably mounted on the rotating shaft 31 and can flexibly switch between the locking and unlocking positions. The rotating engagement method makes the locking and unlocking actions of the locking hook 32 smooth and without jamming, ensuring the connection is firm when locking the output end of the drive mechanism 20, and enabling rapid release when unlocking. At the same time, the reasonable installation position of the rotating shaft 31 makes the layout of the self-locking mechanism 30, the support plate 111, and the receiving slot highly compatible. The overall structure is compact, with few components, and has good integration and adaptability, which greatly improves the working reliability and action accuracy of the self-locking mechanism 30.

[0046] Furthermore, the locking hook 32 has a trigger section 321 and a locking section 322. When the output end of the drive mechanism 20 extends into the receiving slot, the output end of the drive mechanism 20 contacts the trigger section 321 to drive the locking section 322 to rotate around the rotating shaft 31 until the locking section 322 is in the locked position.

[0047] In this embodiment, the locking hook 32 is designed with a trigger section 321 and a locking section 322. Automatic linkage locking can be achieved by the natural movement of the output end of the drive mechanism 20 extending into the receiving slot, without the need for additional power or manual operation. When the output end of the drive mechanism 20 extends into the receiving slot, it contacts the trigger section 321, which in turn drives the locking section 322 to rotate around the rotating shaft 31 and accurately reach the locking position. The two-stage structural layout and motion trajectory are highly compatible, making the triggering and execution of locking smooth and the action precise and without jamming. This simplifies the self-locking operation process and improves the timeliness and reliability of the locking action. At the same time, the integrated linkage design also makes the overall action logic of the self-locking mechanism 30 simpler, effectively ensuring the stability of the cooperation between the drive mechanism 20 and the support component 11.

[0048] In this embodiment, the drive mechanism 20 includes a hydraulic cylinder. The cylinder body of the hydraulic cylinder is mounted on the frame via a support block 40. The output end of the hydraulic cylinder is provided with a push rod 21 and at least one locking pin 22. The locking pin 22 is protruding from the outer circumferential surface of the push rod 21. During the process of the hydraulic cylinder extending into the receiving slot, the push rod 21 contacts the trigger section 321 to drive the locking section 322 to rotate around the rotating shaft 31 until the locking section 322 engages with the locking pin 22 and locks.

[0049] In this embodiment, the drive mechanism 20 uses a hydraulic cylinder as its core power source. The cylinder body is securely mounted on the frame via a support block 40, ensuring both installation stability and reliable power output during operation, while also enabling precise positioning of the hydraulic cylinder. The hydraulic cylinder output end is equipped with a push rod 21 and a locking pin 22 protruding from its outer circumference. These two components work together in a complementary manner. During the process of the hydraulic cylinder extending into the receiving slot, the push rod 21 precisely contacts the trigger section 321 of the locking hook 32, causing the locking section 322 to rotate around the rotating shaft 31, ultimately achieving locking of the section. The precise engagement and locking of 322 and locking pin 22 create a seamless mechanical linkage between the extension and retraction of the hydraulic cylinder and the locking action of the self-locking mechanism 30. Automatic locking can be completed without additional power or manual intervention. Furthermore, the protruding structural design of locking pin 22 makes the locking fit more secure, effectively ensuring the stability of power transmission and avoiding problems such as loose connections and power loss during the cab 10 tilting process. The overall structural design conforms to the action logic, and the precise and tight cooperation of each component greatly improves the linkage, reliability, and working efficiency of the entire cab tilting system.

[0050] Furthermore, the self-locking mechanism 30 includes a preload spring 33, which is disposed on the rotating shaft 31. The preload spring 33 is used to apply a preload force to the locking hook 32 so that the locking hook 32 has an initial position. When the locking hook 32 is in the initial position, the trigger section 321 is disposed opposite to the opening of the receiving groove and is located behind the opening of the receiving groove. The end of the locking section 322 is disposed away from the opening of the receiving groove.

[0051] In this embodiment, a preload spring 33 is provided on the rotating shaft 31 of the self-locking mechanism 30. This spring continuously applies a preload force to the locking hook 32 and keeps it in a precise initial position. In this initial position, the trigger section 321 is opposite to the opening of the receiving slot and is located behind the slot. The end of the locking section 322 is far from the slot opening. This ensures that when the push rod 21 of the drive mechanism 20 extends into the receiving slot, it can accurately and quickly contact the trigger section 321, guaranteeing the timeliness and accuracy of the locking trigger action. At the same time, it prevents the locking hook 32 from swaying and interfering with the extension action of the push rod 21, ensuring the output end of the drive mechanism 20. The smooth operation with the receiving slot; at the same time, the preload of the preload spring 33 can realize the automatic reset of the locking hook 32. After unlocking, the locking hook 32 can quickly return to the initial position without additional power or manual operation, preparing for the next locking action, simplifying the action control logic of the mechanism. The design of the spring being directly mounted on the rotating shaft 31 makes the overall structure compact and highly integrated, without occupying additional installation space. It can also make the locking section 322 and the locking pin 22 more tightly locked through the preload, further improving the working reliability and action stability of the self-locking mechanism 30.

[0052] Specifically, the preload spring 33 is a torsion spring. Its structure is highly compatible with the installation of the rotating shaft 31, and it can be directly mounted on the rotating shaft 31 without the need for additional mounting and fixing structures. This makes the overall layout of the self-locking mechanism 30 more compact and saves a significant amount of installation space. Moreover, the torsion spring can output torque that matches the rotation trajectory of the locking hook 32 around the rotating shaft 31, providing the locking hook 32 with a continuous, stable, and precise preload force. This ensures that the locking hook 32 always firmly maintains the preset initial position, making the triggering contact of the drive mechanism 20 push rod 21 more precise. The reset action of the locking hook 32 after unlocking is also smoother and more timely. At the same time, the torsion spring has excellent fatigue resistance, making it suitable for the complex driving conditions of commercial vehicles. The preload force is not easily decayed under long-term operation, which can effectively ensure the operational stability and long-term operational reliability of the self-locking mechanism 30 and reduce the probability of mechanism failure.

[0053] Furthermore, when the cab 10 is in the working position, the output end of the drive mechanism 20 is located outside the receiving slot. This achieves a complete physical separation between the drive mechanism 20 and the support assembly 11, structurally severing the hard connection path between the two. This completely eliminates the follow-up resistance generated by the cab 10's movement during vehicle operation, preventing problems such as seal wear, oil leakage, and lifting failure of the core hydraulic components of the drive mechanism 20 due to passive follow-up, effectively improving the durability and reliability of the drive mechanism 20. It also blocks the transmission of chassis vibration to the cab 10 via the drive mechanism 20, significantly reducing the vibration felt in the cab 10 and improving driving comfort. At the same time, the layout of the output end away from the receiving slot avoids unexpected contact, collision, or structural interference between the two due to bumps and swaying during vehicle operation, ensuring the structural safety of each component. It also keeps the drive mechanism 20 in a stable retracted state, preparing for the output end to accurately extend into the receiving slot when the cab 10 is tilted, improving the accuracy and smoothness of the tilting operation.

[0054] In this embodiment, the self-locking mechanism 30 includes a drive motor, which drives the locking hook 32 to be in the locked and unlocked positions. This achieves electric active control of the locking hook 32's movement, eliminating the reliance on the drive mechanism 20 for purely mechanical linkage. It allows for independent and precise control of the locking hook 32's position switching, significantly improving the controllability and accuracy of locking and unlocking actions. Even under complex working conditions, it avoids problems such as trigger jamming and untimely reset that may occur with mechanical linkage. Simultaneously, the motor-driven approach makes the self-locking mechanism 30's movement smoother and its positioning more precise. It can flexibly control the timing of locking and unlocking according to actual needs, adapting to the intelligent operation requirements of commercial vehicle cab tilting systems, reducing manual intervention, and further improving the overall reliability, adaptability, and automation level of the cab tilting operation of the self-locking mechanism 30. This effectively ensures the smoothness and safety of the cab 10's tilting and reset process.

[0055] In one exemplary embodiment, the self-locking mechanism 30 includes an image acquisition device for detecting the position information of the output end of the drive mechanism 20 extending into the receiving slot. When it is determined that the output end of the drive mechanism 20 is located at the target position, the drive motor drives the locking hook 32 to be in the locked position and the unlocked position.

[0056] In this embodiment, an image acquisition device is configured in the self-locking mechanism 30 and works in conjunction with the drive motor. The image acquisition device can accurately detect the real-time position information of the output end of the drive mechanism 20 extending into the receiving slot. Only when the output end is determined to have reached the preset target position is the drive motor driven to switch the locking or unlocking position of the locking hook 32. This achieves precise position triggering and closed-loop control of the locking hook 32's action, fundamentally avoiding malfunctions of the locking hook 32 when the output end is not in place or the position is offset. It eliminates problems such as locking engagement deviation, mechanism jamming, and even component damage, significantly improving the accuracy and safety of locking and unlocking actions. At the same time, the visual detection method can provide real-time feedback on the engagement status of the output end, getting rid of the triggering limitations of pure mechanical linkage, adapting to the precise control requirements under complex working conditions, further improving the intelligence and automation level of the self-locking mechanism 30 and even the entire cab tilting system. It can also detect engagement abnormalities in a timely manner through position detection, providing data support for system fault early warning, and effectively ensuring the stability and reliability of the mechanism's long-term operation.

[0057] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0058] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle, characterized in that, include: The cab (10) has a support assembly (11) at its bottom. The cab (10) is rotatably mounted on the frame so that the cab (10) has a working position for normal operation on the frame and a rotatable position for rotating relative to the frame at a preset angle. A drive mechanism (20) is mounted on the vehicle frame. The output end of the drive mechanism (20) has an extension position that cooperates with the support assembly (11) to drive the cab (10) to flip to the flip position, and the output end of the drive mechanism (20) has a storage position when it is disengaged from the cab (10). When the drive mechanism (20) is in the storage position, the cab (10) is in the working position.

2. The vehicle according to claim 1, characterized in that, The support component (11) includes: A support plate (111) is connected to the vehicle frame. The support plate (111) has a receiving slot on the side facing the drive mechanism (20). The receiving slot is used to accommodate the output end of the drive mechanism (20). The output end of the drive mechanism (20) cooperates with the receiving slot to drive the cab (10) to be in the flip position and the working position. A self-locking mechanism (30) is connected to the support plate (111). The self-locking mechanism (30) is rotatably disposed relative to the support plate (111) so that the self-locking mechanism (30) has a locking position that locks the output end of the drive mechanism (20) in the receiving slot, and the self-locking mechanism (30) has an unlocking position that releases the output end of the drive mechanism (20).

3. The vehicle according to claim 2, characterized in that, The self-locking mechanism (30) includes: A rotating shaft (31) is connected to the support plate (111), and the rotating shaft (31) is located above the opening side of the receiving slot; A locking hook (32) is rotatably mounted on the pivot (31) and has the locking position and the unlocking position.

4. The vehicle according to claim 3, characterized in that, The locking hook (32) has a trigger section (321) and a locking section (322). When the output end of the driving mechanism (20) is inserted into the receiving slot, the output end of the driving mechanism (20) contacts the trigger section (321) to drive the locking section (322) to rotate around the rotating shaft (31) until the locking section (322) is in the locking position.

5. The vehicle according to claim 4, characterized in that, The drive mechanism (20) includes a hydraulic cylinder. The cylinder body of the hydraulic cylinder is mounted on the frame via a support block (40). The output end of the hydraulic cylinder is provided with a push rod (21) and at least one locking pin (22). The locking pin (22) is protruding on the outer circumferential surface of the push rod (21). During the process of the hydraulic cylinder extending into the receiving slot, the push rod (21) contacts the trigger section (321) to drive the locking section (322) to rotate around the rotating shaft (31) until the locking section (322) engages with the locking pin (22) and locks.

6. The vehicle according to claim 4, characterized in that, The self-locking mechanism (30) includes: A preload spring (33) is disposed on the rotating shaft (31). The preload spring (33) is used to apply a preload force to the locking hook (32) so that the locking hook (32) has an initial position. When the locking hook (32) is in the initial position, the trigger segment (321) is disposed opposite to the opening of the receiving groove and is located behind the opening of the receiving groove. The end of the locking segment (322) is disposed away from the opening of the receiving groove.

7. The vehicle according to claim 6, characterized in that, The preload spring (33) is a torsion spring.

8. The vehicle according to claim 2, characterized in that, When the cab (10) is in the working position, the output end of the drive mechanism (20) is located outside the receiving slot.

9. The vehicle according to claim 3, characterized in that, The self-locking mechanism (30) includes a drive motor, which drives the locking hook (32) to be in the locked position and the unlocked position.

10. The vehicle according to claim 9, characterized in that, The self-locking mechanism (30) includes an image acquisition device, which is used to detect the position information of the output end of the drive mechanism (20) extending into the receiving slot. When it is determined that the output end of the drive mechanism (20) is located at the target position, the drive motor drives the locking hook (32) to be located at the locking position and the unlocking position.

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