A vehicle frame and a car carrier

Abstract

The application discloses a kind of vehicle frame and lift van, vehicle frame includes lower loading platform, upper loading platform and tailgate;Upper loading platform and lower loading platform are sequentially arranged along height direction;Tailgate is configured to selectively form driving connection with the tail end of upper loading platform or the tail end of lower loading platform.The vehicle frame disclosed by the application forms switchable single tailgate double-platform shared structure by setting tailgate to selectively form driving connection with the tail end of upper loading platform or the tail end of lower loading platform, so that upper loading platform and lower loading platform can share a tailgate.As for such design, when loading and unloading vehicles on upper loading platform, there is no need to repeatedly control hydraulic lifting system to accurately adjust the position of upper loading platform, which not only helps to simplify the operation difficulty and reduce manual intervention, but also helps to improve the loading and unloading efficiency.

Description

Technical Field

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

[0002] The content in this section only provides background information related to this invention and may not constitute prior art.

[0003] In the field of automotive logistics and transportation, car carriers are special vehicles designed specifically for transporting automobiles. To improve transportation efficiency and reduce the cost per trip, some car carriers employ a double-layer loading platform design to increase the number of cars transported in a single trip.

[0004] In a chassis with a double-layer loading platform design, in order to facilitate the loading and unloading of vehicles on the upper and lower loading platforms, the lower loading platform is usually equipped with a rotatable tailgate at its rear end. By flipping the tailgate, a loading and unloading ramp is formed with the ground, making it easy for vehicles to get on and off. The upper loading platform usually adopts a hydraulic lifting system. During loading and unloading, it is first lowered to a predetermined height, and then its rear end is tilted downwards to overlap the lower loading platform. Finally, the loading and unloading is completed with the help of the tailgate of the lower loading platform.

[0005] However, this frame structure design has the following technical drawbacks: 1. High operational precision requirements: The smooth connection of the upper platform requires precise control of the descent height and tilt angle. Any deviation will affect the safety of loading and unloading. 2. Frequent manual intervention: Operators need to continuously control the hydraulic system and achieve accurate platform positioning through visual inspection and repeated adjustments; 3. Low work efficiency: According to actual operation tests, the entire adjustment process usually takes 8-12 minutes, which seriously restricts loading and unloading efficiency. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a chassis and a car carrier that at least overcomes the technical problems of known chassis with a double-layer loading platform design, such as high operational precision requirements, frequent manual intervention, and low operating efficiency.

[0007] The objective of this invention is achieved through the following technical solution: On one hand, the present invention discloses a vehicle frame, comprising: Lower loading platform; An upper loading platform; the upper loading platform and the lower loading platform are arranged sequentially along the height direction, and the upper loading platform is configured to be able to move up and down along the height direction; The tail plate is configured to selectively form a drive connection with either the tail end of the upper loading platform or the tail end of the lower loading platform. Specifically, when the tail plate is driven to the tail end of the upper loading platform, the tail plate can be flipped relative to the upper loading platform to form an upper loading and unloading ramp between the upper loading platform and the ground; when the tail plate is driven to the tail end of the lower loading platform, the tail plate can be flipped relative to the lower loading platform to form a lower loading and unloading ramp between the lower loading platform and the ground.

[0008] Optionally, the upper loading platform and the lower loading platform are respectively provided with a first rotating shaft and a second rotating shaft extending in a second horizontal direction and rotatable; the upper and lower sides of the tail plate are respectively provided with a first slot and a second slot, the first slot can be engaged with the first rotating shaft, and the second slot can be engaged with the second rotating shaft. The bottom of the upper loading platform is provided with a pusher located between the tail plate and the head end of the upper loading platform. The pusher is configured to reciprocate along a first horizontal direction, and the tail plate is located on the movement path of the pusher. The upper loading platform is also provided with a locking component; the locking component is configured to lock or unlock the first slot and the first rotating shaft when the first slot is engaged with the first rotating shaft. The lower loading platform is provided with a blocking member located outside the tail plate, the blocking member being configured to flip over to the outside of the tail plate.

[0009] Optionally, the pushing member has an outwardly convex arc-shaped structure on the side facing the tail plate.

[0010] Optionally, the blocking member includes two blocking plates, which are arranged at intervals on both sides of the tail plate along a second horizontal direction; The tail plate has blocking portions on both sides in the second horizontal direction, corresponding to the blocking plate.

[0011] Optionally, both the upper and lower sides of the baffle plate have an arc-shaped structure, and the diameter of the upper side of the baffle plate is larger than the diameter of the lower side.

[0012] Optionally, the locking element is a snap-fit ​​that can extend and retract along a second horizontal direction; When the buckle extends, it presses against the first slot and the first rotating shaft to lock them; when the buckle retracts, it no longer presses against the first slot and the first rotating shaft to release them from the lock.

[0013] Optionally, there are two tail plates, which are arranged at intervals along a second horizontal direction.

[0014] On the other hand, the present invention discloses a car carrier vehicle, including the frame described above.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: The vehicle frame disclosed in the present invention forms a switchable single tailgate dual-platform shared structure by setting the tailgate to be selectively connected to the tail end of the upper loading platform or the tail end of the lower loading platform. This allows the upper loading platform and the lower loading platform to share a tailgate. With this design, when loading and unloading vehicles on the upper loading platform, there is no need to repeatedly operate the hydraulic lifting system to precisely adjust the position of the upper loading platform. This not only helps to simplify the operation and reduce manual intervention, but also helps to improve loading and unloading efficiency. Attached Figure Description

[0016] Figure 1 A schematic diagram of the vehicle frame provided for an embodiment of the present invention; Figure 2 A partial structural schematic diagram and an enlarged view of the vehicle frame provided for embodiments of the present invention; Figure 3 for Figure 2 The side sectional view and its enlarged partial structural view.

[0017] Icons: 10-Upper loading platform, 20-Lower loading platform, 30-Tail plate, 31-First slot, 32-Second slot, 33-Blocking part, 40-First rotating shaft, 41-Second rotating shaft, 42-Pushing part, 43-Locking part, 44-Blocking part, 441-Blocking plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments. The same reference numerals in the accompanying drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention without creative effort are within the scope of protection of this invention.

[0019] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this invention may have fewer components, other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0020] Example 1

[0021] Please refer to Figures 1 to 3Embodiment 1 of the present invention discloses a vehicle frame, particularly a vehicle frame suitable for use in car carriers for transporting automobiles.

[0022] Figure 1 This is a schematic diagram of the structure of an exemplary vehicle frame disclosed in an embodiment of the present invention. Figure 1 In the illustrated embodiment, the vehicle frame may include an upper loading platform 10 and a lower loading platform 20 arranged sequentially along the height direction. The upper loading platform 10 may be located above the lower loading platform 20, and the two are parallel to each other.

[0023] Both the upper loading platform 10 and the lower loading platform 20 are equipped with several parking spaces arranged sequentially along a first horizontal direction, with each parking space suitable for parking a single vehicle. Here, the first horizontal direction described in this embodiment can be understood as the vehicle frame, especially the length direction of a car carrier, i.e., the direction from the front to the rear of the car carrier. This design facilitates the sequential parking of vehicles in designated spaces as needed.

[0024] For example, the accompanying drawings of the present invention show a configuration where both the upper loading platform 10 and the lower loading platform 20 are provided with four parking spaces arranged sequentially along a first horizontal direction, so that both the upper loading platform 10 and the lower loading platform 20 can accommodate four vehicles. Of course, in other embodiments of the present invention, the number of parking spaces on each loading platform may be other suitable numbers, which are not limited here.

[0025] Both the upper loading platform 10 and the lower loading platform 20 include a front end and a rear end opposite each other in a horizontal first direction. In this embodiment of the invention, the front end of the loading platform can be understood as the end of the loading platform closer to the front of the car carrier; correspondingly, the rear end of the loading platform can be understood as the end of the loading platform away from the front of the car carrier.

[0026] Furthermore, the upper loading platform 10 is configured to be movable in the height direction, so as to reasonably adjust the height of the upper loading platform 10 according to the loading and unloading needs of the vehicle. This can be achieved by arranging a hydraulic lifting system (not shown in the figure) to drive the upper loading platform 10 to reciprocate in the height direction.

[0027] Based on this, in order to enable both the upper loading platform 10 and the lower loading platform 20 to smoothly load and unload vehicles, the vehicle frame disclosed in this embodiment of the invention may further include a tailgate 30. The tailgate 30 is suitable to be shared by the two loading platforms to establish a loading and unloading ramp between the corresponding loading platform and the ground for vehicles to load and unload onto and off the loading platform.

[0028] Specifically, the tail plate 30 is configured to selectively form a drive connection with either the tail end of the upper loading platform 10 or the tail end of the lower loading platform 20. That is, the tail plate 30 can form a drive connection with the tail end of the upper loading platform 10, and can also disconnect from the drive connection with the tail end of the upper loading platform 10 and form a drive connection with the tail end of the lower loading platform 20, and vice versa.

[0029] When the tailgate 30 is driven to the rear end of the upper loading platform 10, the tailgate 30 can be flipped relative to the upper loading platform 10 to form an upper loading ramp between the upper loading platform 10 and the ground. This upper loading ramp is mainly used for vehicles to go up and down the upper loading platform 10. When the tailgate 30 is driven to the rear end of the lower loading platform 20, the tailgate 30 can be flipped relative to the lower loading platform 20 to form a lower loading ramp between the lower loading platform 20 and the ground. This lower loading ramp is mainly used for vehicles to go up and down the lower loading platform 20.

[0030] Based on the above configuration, when using this chassis for loading and unloading vehicles, it is only necessary to reasonably connect the tailgate 30 with the tail end of the upper loading platform 10 or the tail end of the lower loading platform 20 to form a loading and unloading ramp between the corresponding loading platform and the ground, thereby smoothly completing the loading and unloading operation of vehicles. The loading and unloading operation of vehicles can be divided into two situations: loading and unloading.

[0031] During loading, the order can be as follows: first load the vehicles on the upper loading platform 10, then load the vehicles on the lower loading platform 20. The specific process is as follows: first, make the tailgate 30 form a drive connection with the rear end of the upper loading platform 10, so that the tailgate 30 can be flipped relative to the upper loading platform 10 to a suitable position (e.g., parallel to the horizontal plane); then, the upper loading platform 10, together with the tailgate 30, synchronously descends to a suitable height. On this basis, the tailgate 30 is flipped relative to the upper loading platform 10 so that the end of the tailgate 30 away from the upper loading platform 10 rests on the ground, thus using the tailgate 30 as an upper loading ramp. Afterwards, vehicles needing to be loaded onto the upper platform... Cars on loading platform 10 can drive into upper loading platform 10 using tailgate 30. After the cars on upper loading platform 10 are loaded, upper loading platform 10 is raised to a predetermined height. Then, the drive connection between tailgate 30 and the rear end of upper loading platform 10 is released, and tailgate 30 is connected to the rear end of lower loading platform 20. On this basis, tailgate 30 is flipped relative to lower loading platform 20 so that the end of tailgate 30 away from lower loading platform 20 is attached to the ground, thus making tailgate 30 a lower loading ramp. After that, cars that need to be loaded on lower loading platform 20 can drive into lower loading platform 20 using tailgate 30.

[0032] During unloading, the sequence is exactly the reverse of the loading sequence. That is, the cars on the lower loading platform 20 must be unloaded first, followed by the cars on the upper loading platform 10. The specific process is as follows: First, the tailgate 30 is connected to the rear end of the lower loading platform 20 via a drive mechanism. Then, the tailgate 30 is flipped relative to the lower loading platform 20 so that the end of the tailgate 30 furthest from the lower loading platform 20 rests on the ground, thus using the tailgate 30 as a lower loading ramp. Afterward, the cars on the lower loading platform 20 can drive off using the tailgate 30. After the cars on the upper loading platform 20 are unloaded, the drive connection between the tailgate 30 and the rear end of the lower loading platform 20 is released, and the tailgate 30 is connected to the rear end of the upper loading platform 10. Then, the upper loading platform 10 is lowered to a suitable height. Subsequently, the tailgate 30 is flipped relative to the upper loading platform 10 so that the end of the tailgate 30 away from the upper loading platform 10 rests on the ground, thus making the tailgate 30 serve as an upper loading and unloading ramp. After that, the cars on the upper loading platform 10 can drive off the upper loading platform 10 with the help of the tailgate 30.

[0033] As can be seen, the vehicle frame disclosed in the embodiments of the present invention forms a switchable single tailgate 30 dual-platform shared structure by setting the tailgate 30 to be selectively connected to the tail end of the upper loading platform 10 or the tail end of the lower loading platform 20. This allows the upper loading platform 10 and the lower loading platform 20 to share a single tailgate 30. With this design, when loading and unloading vehicles on the upper loading platform 10, it is only necessary to control the upper loading platform 10 to descend to a suitable height. There is no need to repeatedly operate the hydraulic lifting system to precisely adjust the position of the upper loading platform 10. This not only helps to simplify the operation and reduce manual intervention, but also helps to improve loading and unloading efficiency.

[0034] In some embodiments, the tail plate 30 can selectively form a drive connection with the tail end of the upper loading platform 10 or the tail end of the lower loading platform 20 in the manner described below.

[0035] Combination Figure 2 and Figure 3 As shown, the upper loading platform 10 and the lower loading platform 20 are respectively provided with a first rotating shaft 40 and a second rotating shaft 41 that extend in the second horizontal direction and are rotatable.

[0036] In this embodiment of the invention, the second horizontal direction is perpendicular to the first horizontal direction. That is, the second horizontal direction can be understood as the width direction of the car carrier or the width direction of the car to be fixed.

[0037] The tail plate 30 has a first slot 31 and a second slot 32 on its upper and lower sides, respectively. The first slot 31 can be engaged with the first rotating shaft 40. The second slot 32 can be engaged with the second rotating shaft 41.

[0038] The upper loading platform 10 also has a pusher 42 located at its bottom between the tail plate 30 and the front end of the upper loading platform 10. The pusher 42 is configured to reciprocate along a first horizontal direction. Exemplarily, the pusher 42 can reciprocate along the first horizontal direction under the drive of a conventional linear actuator of a cylinder or electric push rod. The tail plate 30 is located on the movement path of the pusher 42, so that the pusher 42, moving along the first horizontal direction, can push the tail plate 30.

[0039] Meanwhile, a locking element 43 can also be provided on the upper loading platform 10. This locking element 43 is configured to lock or unlock the first slot 31 and the first rotating shaft 40 when the first slot 31 of the tailplate 30 engages with the first rotating shaft 40. For example, the locking element 43 can be a latch capable of extending and retracting in a horizontal second direction to clamp the first slot 31 and the first rotating shaft 40 together; when the latch extends, it presses against the first slot 31 and the first rotating shaft 40 to lock them together; when the latch retracts, it no longer presses against the first slot 31 and the first rotating shaft 40 to release the lock.

[0040] The lower loading platform 20 is provided with a stop 44 located outside the tail plate 30. This stop 44 is configured to flip over from the outside of the tail plate 30. Exemplarily, the stop 44 can be hinged to the tail end of the lower loading platform 20, and the stop 44 can flip under the drive of a drive device (not shown) such as a motor provided on the lower loading platform 20. The flipping path of the stop 44 coincides with the flipping path of the tail plate 30, especially the tail plate 30 that is driven to the lower loading platform 20.

[0041] Based on the above configuration, assuming that in the initial state, the first slot 31 and the second slot 32 of the tailgate 30 are respectively engaged with the first rotating shaft 40 and the second rotating shaft 41, the locking member 43 locks the first slot 31 and the first rotating shaft 40 together, and the blocking member 44 flips to a vertical state to form a blockage on the outside of the tailgate 30, thereby reliably holding the tailgate 30 between the upper loading platform 10 and the lower loading platform 20. During the subsequent normal driving of the car carrier to transport the car, the tailgate 30 can be kept in this initial state, achieving tailgate 30 retraction while also forming a reliable blockage at the rear end of the lower loading platform 20.

[0042] When it is necessary for the tailgate 30 to form a drive connection only with the upper loading platform 10 for loading and unloading vehicles on the upper loading platform 10, it is only necessary to flip the blocking member 44 outward to move away from the tailgate 30. On this basis, the pushing member 42 moves along the first horizontal direction toward the tailgate 30 and pushes the tailgate 30. Since the first slot 31 of the tailgate 30 is locked with the first rotating shaft 40 by the locking member 43, while the second slot 32 of the tailgate 30 is not locked with the second rotating shaft 41, when the pushing member 42 pushes the tailgate 30, the first slot 31 of the tailgate 30 rotates synchronously with the first rotating shaft 40, so that the second slot 32 of the tailgate 30 disengages from the second rotating shaft 41, thereby causing the tailgate 30 to flip outward so that when the upper loading platform 10 descends to a suitable height, the tailgate 30 can flip to its underside to contact the ground, thereby establishing the aforementioned upper loading and unloading ramp between the upper loading platform 10 and the ground through the tailgate 30.

[0043] Based on this, when a drive connection needs to be established between the tail plate 30 and the lower loading platform 20, the upper loading platform 10 is raised first. During this process, the tail plate 30 flips inward under its own gravity, causing its second slot 32 to continuously approach the second rotating shaft 41. The pushing member 42 then retracts along the first horizontal direction away from the tail plate 30 until the second slot 32 is aligned with the second rotating shaft 41. Afterward, the blocking member 44 flips inward until it pushes the tail plate 30 from the outside, causing the second slot 32 of the tail plate 30 to engage with the second rotating shaft 41. Subsequently, the locking member 43 releases the lock between the first slot 31 and the first rotating shaft 40.

[0044] Subsequently, the blocking member 44 slowly flips outward again. During this process, the pushing member 42 moves along the first horizontal direction toward the tail plate 30 and pushes the tail plate 30. Since the lock between the first slot 31 of the tail plate 30 and the first rotating shaft 40 has been released, the first slot 31 will disengage from the first rotating shaft 40. The second slot 32 rotates synchronously with the second rotating shaft 41. During this process, the tail plate 30 is always supported by the blocking member 44 and slowly flipped, thereby preventing the second slot 32 from disengaging from the second rotating shaft 41. After the pushing member 42 moves to its maximum stroke and disengages from the tail plate 30, the tail plate 30 will continue to flip outward under its own weight, supported by the blocking member 44, until the upper side of the tail plate 30 flips to contact the ground, thereby establishing an upper loading and unloading ramp between the lower loading platform 20 and the ground through the tail plate 30.

[0045] Correspondingly, when it is necessary to restore the tail plate 30 to its initial state, the blocking member 44 is flipped inward to drive the tail plate 30 to flip inward until the first slot 31 of the tail plate 30 is re-engaged with the first rotating shaft 40. Then the locking member 43 can be used to lock the first slot 31 and the first rotating shaft 40 again.

[0046] It is worth noting that the above method not only enables the tailgate 30 to selectively form a drive connection with the tail ends of the upper loading platform 10 and the lower loading platform 20, but also requires almost no manual intervention throughout the process, thereby further improving the level of automation in loading and unloading vehicles and reducing the labor intensity of manual labor.

[0047] In some embodiments, such as Figure 3 As shown, the side of the pusher 42 facing the tail plate 30, that is, the side of the pusher 42 used to push the tail plate 30, has an outward convex arc-shaped structure. This design helps to reduce the friction between the pusher 42 and the tail plate 30 when the pusher pushes the tail plate 30, and avoids the pusher 42 hindering the flipping of the tail plate 30.

[0048] In some embodiments, there may be two tail plates 30, and the two tail plates 30 are arranged at intervals along a second horizontal direction. In this case, the locking member 43, the pushing member 42, and the blocking member 44 mentioned above correspond one-to-one with the tail plates 30, so that both tail plates 30 can realize the aforementioned drive connection with the upper loading platform 10 or the lower loading platform 20.

[0049] In some embodiments, such as Figure 2 As shown, the blocking member 44 may further include two blocking plates 441, which are spaced apart on both sides of the tail plate 30 along a second horizontal direction. In this case, the tail plate 30 has blocking portions 33 corresponding to the blocking plates 441 on both sides in the second horizontal direction. When the tail plate 30 is in its initial state, the two blocking portions 33 on the tail plate 30 abut against the two blocking plates 441 respectively, thereby reliably limiting the tail plate 30 to its initial state through the two blocking plates 441.

[0050] Furthermore, both the upper and lower sides of the baffle plate 441 have an arc-shaped structure, and the diameter of the upper side of the baffle plate 441 is larger than the diameter of the lower side. This design helps to further improve the reliability of the baffle plate 441 in confining the tail plate 30 in the initial state.

[0051] On the other hand, embodiments of the present invention also disclose a car carrier vehicle, including the frame described above. It is understood that by employing the frame described above, the car carrier vehicle at least possesses the beneficial effects of the frame described above.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present 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 frame, characterized in that, include: Lower loading platform; An upper loading platform; the upper loading platform and the lower loading platform are arranged sequentially along the height direction, and the upper loading platform is configured to be able to move up and down along the height direction; The tail plate is configured to selectively form a drive connection with either the tail end of the upper loading platform or the tail end of the lower loading platform. Specifically, when the tail plate is driven to the tail end of the upper loading platform, the tail plate can be flipped relative to the upper loading platform to form an upper loading and unloading ramp between the upper loading platform and the ground; when the tail plate is driven to the tail end of the lower loading platform, the tail plate can be flipped relative to the lower loading platform to form a lower loading and unloading ramp between the lower loading platform and the ground.

2. The frame according to claim 1, characterized in that, The upper loading platform and the lower loading platform are respectively provided with a first rotating shaft and a second rotating shaft extending in a horizontal second direction and rotatable; the upper and lower sides of the tail plate are respectively provided with a first slot and a second slot, the first slot can be engaged with the first rotating shaft, and the second slot can be engaged with the second rotating shaft. The bottom of the upper loading platform is provided with a pusher located between the tail plate and the head end of the upper loading platform. The pusher is configured to reciprocate along a first horizontal direction, and the tail plate is located on the movement path of the pusher. The upper loading platform is also provided with a locking component; the locking component is configured to lock or unlock the first slot and the first rotating shaft when the first slot is engaged with the first rotating shaft. The lower loading platform is provided with a blocking member located outside the tail plate, the blocking member being configured to flip over to the outside of the tail plate. Wherein, the second horizontal direction is the width direction of the car carrier, and the second horizontal direction is perpendicular to the first horizontal direction.

3. The frame according to claim 2, characterized in that, The pusher has an outwardly convex arc-shaped structure on the side facing the tail plate.

4. The frame according to claim 2, characterized in that, The blocking component includes two blocking plates, which are arranged at intervals on both sides of the tail plate along a second horizontal direction. The tail plate has blocking portions on both sides in the second horizontal direction, corresponding to the blocking plate.

5. The frame according to claim 4, characterized in that, The upper and lower sides of the baffle plate are both arc-shaped structures, and the diameter of the upper side of the baffle plate is larger than the diameter of the lower side.

6. The frame according to claim 2, characterized in that, The locking element is a snap-fit ​​that can extend and retract along a second horizontal direction; When the buckle extends, it presses against the first slot and the first rotating shaft to lock them; when the buckle retracts, it no longer presses against the first slot and the first rotating shaft to release them from the lock.

7. The frame according to claim 1, characterized in that, There are two tail plates, which are arranged at intervals along a second horizontal direction. The second horizontal direction is the width direction of the car carrier.

8. A car carrier, characterized in that, Includes the frame as described in any one of claims 1 to 7.

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