Chain transmission type vehicle carrying device

Abstract

The utility model provides a chain transmission type vehicle carrying device. The chain transmission type vehicle carrying device comprises a fixing frame, a lifting bracket, a transmission shaft, a transmission chain wheel, a tensioning chain wheel and a chain. The lifting bracket is installed on the fixing frame in a lifting and sliding mode. The transmission shaft is rotatably and horizontally installed on the fixing frame, and the transmission chain wheel is fixed to the transmission shaft. The two tensioning chain wheels are rotationally installed on the fixing frame and located above and below the transmission chain wheel respectively. The chain is wound on the transmission chain wheel and the two tensioning chain wheels, the upper end and the lower end of the chain are fixed to the upper end and the lower end of the lifting bracket respectively, the transmission shaft is driven to rotate to drive the transmission chain wheel to rotate, and therefore the chain is driven to pull the lifting bracket to ascend and descend relative to the fixing frame. The chain transmission type vehicle carrying device has the advantages of being compact in structure, reliable in transmission, high in stability and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of RV lifting equipment, specifically to a chain-driven vehicle support device. Background Technology

[0002] Existing vehicle lifting devices mostly employ traditional transmission methods such as hydraulic and electric screw drives for their lifting drive structures. However, these traditional transmission methods have certain limitations. For example, hydraulic lifting structures rely on hydraulic systems, which pose a risk of oil leakage, and the maintenance costs of hydraulic systems are high, with stringent environmental requirements. Electric screw drive structures are prone to screw wear over long-term use, leading to decreased transmission accuracy, and their transmission efficiency is relatively low, resulting in high energy consumption. Furthermore, existing lifting devices may have structural design instability issues, easily experiencing swaying or jamming during the lifting process, affecting the safety and reliability of cargo transportation. Therefore, there is an urgent need for a vehicle lifting device with a compact structure, reliable transmission, and high stability to meet the needs of practical applications. Utility Model Content

[0003] In view of the above, this utility model provides a chain-driven vehicle support device, which has the advantages of compact structure, reliable transmission and high stability.

[0004] The technical solution of this utility model:

[0005] This utility model provides a chain-driven vehicle support device, including a fixed frame, a lifting bracket, a drive shaft, a drive sprocket, a tension sprocket, and a chain. The lifting bracket is slidably and liftably mounted on the fixed frame. The drive shaft is rotatably and horizontally mounted on the fixed frame, and the drive sprocket is fixed to the drive shaft. Two tension sprockets are rotatably mounted on the fixed frame and are located above and below the drive sprocket, respectively. The chain is wound around the drive sprocket and the two tension sprockets, and the upper and lower ends of the chain are fixed to the upper and lower ends of the lifting bracket, respectively. By driving the drive shaft to rotate, the drive sprocket is rotated, thereby driving the chain to pull the lifting bracket up and down relative to the fixed frame.

[0006] According to one embodiment of the present invention, a sliding guide mechanism is further included. The sliding guide mechanism is installed on the fixed frame for sliding installation of the lifting bracket. The sliding guide mechanism includes a guide member and a sliding roller. The guide member is fixed on the fixed frame and has a sliding groove. The lifting bracket is slidably installed in the sliding groove of the guide member. The upper and lower ends of the guide member are equipped with rotatable sliding rollers, and the sliding rollers clamp the two sides of the lifting bracket.

[0007] According to one embodiment of the present invention, a lifting motor is also included. The lifting motor is mounted on the fixed frame and is connected to the transmission shaft for driving the transmission shaft to rotate. The output shaft of the lifting motor is connected to the transmission shaft.

[0008] According to one embodiment of the present invention, there are two transmission sprockets, which are respectively fixed to both ends of the transmission shaft. There are two chains, which are respectively wound around the two transmission sprockets. Each transmission sprocket is equipped with a tension sprocket that engages with the chain above and below it.

[0009] According to one embodiment of the present invention, a locking mechanism is further included. The locking mechanism is installed on the fixed frame to lock the height position of the lifting bracket. The locking mechanism includes a rotating rod rotatably connected to the fixed frame, a hook disposed on the rotating rod, an adjusting handle disposed at one end of the rotating rod, and a return spring. The return spring is disposed between the adjusting handle and the fixed frame, and the hook is used to hook the lifting bracket.

[0010] According to one embodiment of the present invention, the fixing frame includes two L-shaped frames and a crossbeam. The two L-shaped frames are used to fix to the vehicle body, the crossbeam is connected between the two L-shaped frames, and the drive shaft is rotatably mounted on the crossbeam.

[0011] According to one embodiment of the present invention, the lifting bracket includes a frame and a support frame. The support frame is vertically fixed to the bottom end of the frame for placing goods, and the upper and lower ends of the chain are respectively fixed to the upper and lower beams of the frame.

[0012] According to one embodiment of the present invention, the lifting motor is a reversible motor, and the lifting bracket is raised and lowered by controlling the forward and reverse rotation of the lifting motor.

[0013] According to one embodiment of the present invention, a handle is installed on the drive shaft, and the drive shaft is rotated by manually driving the handle.

[0014] According to one embodiment of the present invention, the tensioning sprocket is adjustablely mounted on the fixed frame to adjust the tension of the chain.

[0015] The chain-driven vehicle support device provided by this utility model has the following beneficial effects:

[0016] Firstly, a chain drive system is adopted. Compared to traditional hydraulic and electric screw drives, chain drives offer higher transmission efficiency, effectively reducing energy loss, lowering energy consumption, and improving the device's working efficiency. The drive sprocket is fixed to the drive shaft, while two tension sprockets are rotatably mounted on a fixed frame, positioned above and below the drive sprocket respectively. A stable transmission structure is formed by the chain winding around it. The tension sprockets can adjust the chain tension, ensuring it remains at a suitable level, thus guaranteeing transmission stability and reliability. This prevents swaying or jamming during the lifting process of the lifting bracket, improving the safety of cargo transportation.

[0017] Secondly, the lifting bracket is slidably mounted on the fixed frame, with the upper and lower ends of the chain fixed to the upper and lower ends of the lifting bracket, respectively. When the drive shaft rotates, the drive sprocket drives the chain, thereby pulling the lifting bracket up and down smoothly relative to the fixed frame. This structural design ensures that the lifting bracket is subjected to uniform force during lifting, enabling it to withstand larger loads and improving the load-bearing capacity of the device. Simultaneously, the chain drive structure is simple, with fewer parts, making installation and maintenance convenient, reducing operating costs and maintenance difficulty. Furthermore, the entire device has a compact structure, occupies little space, and is suitable for installation and use in various vehicle models, exhibiting strong versatility and practicality.

[0018] In addition, the chain driven by the transmission sprocket can pull the lifting bracket up and down relative to the fixed frame. When the bottom of the lifting bracket touches the ground, it can continue to descend, thus acting as a parking support leg and improving the stability of parking.

[0019] The preferred embodiments of this utility model and their beneficial effects will be further described in detail in conjunction with specific implementation methods. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but should not be construed as limiting the present invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the main structure of the chain-driven vehicle support device of this utility model;

[0022] Figure 2 This is a side view of the chain-driven vehicle support device of this utility model.

[0023] Figure 3 This is a partial structural diagram of the chain drive of the chain-driven vehicle support device of this utility model;

[0024] Figure 4 This is a reference diagram showing the chain-driven vehicle support device of this utility model installed in a motorhome and in the raised state.

[0025] Figure 5 This is a reference diagram showing the chain-driven vehicle support device of this utility model installed on a motorhome and in a lowered state.

[0026] The following are the reference numerals: 1. Fixed frame; 2. Lifting bracket; 3. Drive shaft; 4. Drive sprocket; 5. Tensioning sprocket; 6. Chain; 7. Sliding guide mechanism; 71. Guide component; 72. Sliding roller; 8. Lifting motor; 11. L-shaped frame; 12. Crossbeam; 21. Frame; 22. Bearing frame. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0028] Please see Figures 1 to 5 This utility model provides a chain-driven vehicle support device, including a fixed frame 1, a lifting bracket 2, a drive shaft 3, a drive sprocket 4, a tension sprocket 5, and a chain 6. The lifting bracket 2 is slidably and vertically mounted on the fixed frame 1. The drive shaft 3 is rotatably and horizontally mounted on the fixed frame 1. The drive sprocket 4 is fixed to the drive shaft 3. Two tension sprockets 5 are rotatably mounted on the fixed frame 1 and are located above and below the drive sprocket 4, respectively. The chain 6 is wound around the drive sprocket 4 and the two tension sprockets 5, and the upper and lower ends of the chain 6 are fixed to the upper and lower ends of the lifting bracket 2, respectively. By driving the drive shaft 3 to rotate, the drive sprocket 4 is rotated, thereby driving the chain 6 to pull the lifting bracket 2 up and down relative to the fixed frame 1.

[0029] The chain-driven vehicle support device provided by this utility model has the following beneficial effects:

[0030] Firstly, a chain drive is adopted. Compared with traditional hydraulic and electric screw drives, chain drives have high transmission efficiency, effectively reducing energy loss, lowering energy consumption, and improving the working efficiency of the device. The transmission sprocket 4 is fixed to the transmission shaft 3, and two tension sprockets 5 are rotatably mounted on the fixed frame 1, located above and below the transmission sprocket 4 respectively. A stable transmission structure is formed by the chain 6 winding around it. The tension sprockets 5 can adjust the tension of the chain 6, ensuring that the chain 6 is always in a suitable tension state, thereby guaranteeing the stability and reliability of the transmission and preventing shaking or jamming during the lifting of the lifting bracket 2, thus improving the safety of cargo transportation.

[0031] Secondly, the lifting bracket 2 is slidably mounted on the fixed frame 1, with the upper and lower ends of the chain 6 fixed to the upper and lower ends of the lifting bracket 2, respectively. When the drive shaft 3 rotates, the drive sprocket 4 drives the chain 6, thereby pulling the lifting bracket 2 to move smoothly up and down relative to the fixed frame 1. This structural design ensures that the lifting bracket 2 is subjected to uniform force during lifting, enabling it to withstand larger loads and improving the load-bearing capacity of the device. Simultaneously, the chain drive structure is simple, with fewer parts, making installation and maintenance convenient, reducing operating costs and maintenance difficulty. Furthermore, the entire device has a compact structure, occupies little space, and is suitable for installation and use in various vehicle models, exhibiting strong versatility and practicality.

[0032] In addition, the chain 6 driven by the transmission sprocket 4 can pull the lifting bracket 2 up and down relative to the fixed frame 1. When the bottom of the lifting bracket 2 touches the ground, it can continue to descend, thus acting as a parking support leg and improving the stability of parking.

[0033] This utility model relates to a chain-driven vehicle support device, comprising a sliding guide mechanism 7 mounted on a fixed frame 1 for slidingly mounting a lifting bracket 2. Preferably, the sliding guide mechanism 7 includes a guide member 71 with a groove and sliding rollers 72. The guide member 71 is fixed to the fixed frame 1, and the lifting bracket 2 is slidably mounted in the groove of the guide member 71. Two rotatable sliding rollers 72 are mounted at both the upper and lower ends of the guide member 71, clamping the two sides of the lifting bracket 2. The sliding guide mechanism 7 of this utility model, with its guide member 71 fixed to the fixed frame 1 and the lifting bracket 2 slidably mounted in its groove, and rotatable sliding rollers 72 at its upper and lower ends clamping the two sides of the lifting bracket 2, effectively guides the lifting bracket 2 to smoothly rise and fall along a predetermined trajectory, reducing shaking and jamming during the lifting process, and improving the overall operational stability and reliability of the bracket.

[0034] In this embodiment, the chain-driven vehicle support device of this utility model includes a lifting motor 8 mounted on a fixed frame 1 for driving the rotation of a drive shaft 3. The output shaft of the lifting motor 8 is connected to the drive shaft 3 via a drive mechanism, such as a belt drive or gear drive, to drive the drive shaft 3 to rotate. Two drive sprockets 4 are provided, each fixed to one end of the drive shaft 3. Two chains 6 are provided, each wound around one of the two drive sprockets 4. Each drive sprocket 4 has two rotatable tension sprockets 5 mounted above and below it, engaging with the chain 6. Alternatively, there can be one, three, or more drive sprockets 4. Correspondingly, there can be one, two, or more chains 6. The tension sprockets 5 are adjustablely mounted on the fixed frame 1 to adjust the tension of the chains 6, ensuring that the chains 6 are always taut to maintain transmission stability.

[0035] By setting up a lifting motor 7 to drive the transmission shaft 3 to rotate, automated lifting control of the vehicle-mounted motorcycle bracket is achieved. Compared with traditional manually operated brackets, this greatly improves operational efficiency and saves labor and time costs. Users only need to start the lifting motor 7, and the motor output shaft can quickly drive the transmission shaft 3 to rotate, easily completing the lifting and lowering action of the bracket, which is especially suitable for scenarios where motorcycles are frequently loaded and unloaded.

[0036] Two drive sprockets 4 are fixed to both ends of the drive shaft 3, and two chains 6 are wound around the two drive sprockets 4 respectively. This symmetrical transmission structure design ensures that the force on both sides of the bracket is even during the lifting process, avoiding the motorcycle tilting or swaying due to uneven force, thus providing a stable and reliable guarantee for loading and unloading the motorcycle, and effectively reducing the risk of vehicle damage caused by the instability of the bracket.

[0037] It is understandable that the rotation of drive shaft 3 can also be driven manually. For example, a handle for driving the rotation of drive shaft 3 can be installed on drive shaft 3.

[0038] This utility model relates to a chain-driven vehicle support device, including a locking mechanism (not shown) mounted on a fixed frame 1 for locking the height of a lifting support 2. The locking mechanism includes a rotating rod rotatably connected to the fixed frame 1, a hook mounted on the rotating rod, an adjusting handle at one end of the rotating rod, and a return spring. The return spring is located between the adjusting handle and the fixed frame, and the hook engages the lifting support 2. It can be understood that the locking mechanism could also be a pin inserted between the fixed frame 1 and the lifting support 2.

[0039] In this embodiment, the mounting bracket 1 includes two L-shaped brackets 11 for fixing to the vehicle body and a crossbeam 12 connecting the two L-shaped brackets 11. The lifting motor 8 is installed at the middle position of the crossbeam 12.

[0040] In this embodiment, the lifting bracket 2 includes a frame 21 and a support frame 22 vertically fixed to the bottom of the frame 21 for placing the motorcycle. The two ends of the chain 6 are respectively fixed to the upper and lower beams of the frame 21.

[0041] In this embodiment, the lifting motor 8 is a reversible motor, and the lifting bracket 2 is raised and lowered by controlling its forward and reverse rotation.

[0042] In summary, this utility model drives the transmission sprocket 4 through the transmission shaft 3, and in conjunction with the tensioning sprocket 5 to tension the chain 6, it drives the support frame 2 to rise and fall smoothly on the fixed frame 1. It has the advantages of high transmission efficiency, reliable stability, strong load-bearing capacity, simple and compact structure, convenient maintenance and wide applicability.

[0043] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying importance; the words "bottom surface" and "top surface," "inner" and "outer" respectively refer to the geometric direction toward or away from a specific component.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A chain-driven vehicle support device, characterized in that: The system includes a fixed frame (1), a lifting bracket (2), a drive shaft (3), a drive sprocket (4), a tension sprocket (5), and a chain (6). The lifting bracket (2) is slidably mounted on the fixed frame (1). The drive shaft (3) is rotatably mounted horizontally on the fixed frame (1), and the drive sprocket (4) is fixed to the drive shaft (3). The two tension sprockets (5) are rotatably mounted on the fixed frame (1) and are located above and below the drive sprocket (4), respectively. The chain (6) is wound around the drive sprocket (4) and the two tension sprockets (5). The upper and lower ends of the chain (6) are fixed to the upper and lower ends of the lifting bracket (2), respectively. By driving the drive shaft (3) to rotate, the drive sprocket (4) is driven to rotate, thereby driving the chain (6) to pull the lifting bracket (2) up and down relative to the fixed frame (1).

2. The chain-driven vehicle support device according to claim 1, characterized in that: It also includes a sliding guide mechanism (7), which is mounted on the fixed frame (1) for sliding installation of the lifting bracket (2); the sliding guide mechanism (7) includes a guide member (71) and a sliding roller (72), the guide member (71) is fixed on the fixed frame (1) and has a sliding groove, the lifting bracket (2) is slidably installed in the sliding groove of the guide member (71), and the upper and lower ends of the guide member (71) are both equipped with rotatable sliding rollers (72), the sliding rollers (72) clamp the two sides of the lifting bracket (2).

3. The chain-driven vehicle support device according to claim 1, characterized in that: It also includes a lifting motor (8), which is mounted on the fixed frame (1) and connected to the transmission shaft (3) for driving the transmission shaft (3) to rotate; the output shaft of the lifting motor (8) is connected to the transmission shaft (3).

4. The chain-driven vehicle support device according to claim 3, characterized in that: Two drive sprockets (4) are provided and fixed to both ends of the drive shaft (3) respectively. Two chains (6) are provided and wound around the two drive sprockets (4) respectively. Tension sprockets (5) that mesh with the chains (6) are installed above and below each drive sprocket (4).

5. The chain-driven vehicle support device according to claim 1, characterized in that: It also includes a locking mechanism, which is installed on the fixed frame (1) to lock the height position of the lifting bracket (2); the locking mechanism includes a rotating rod rotatably connected to the fixed frame (1), a hook disposed on the rotating rod, an adjusting handle disposed at one end of the rotating rod, and a return spring, wherein the return spring is disposed between the adjusting handle and the fixed frame (1), and the hook is used to hook the lifting bracket (2).

6. The chain-driven vehicle support device according to claim 1, characterized in that: The mounting bracket (1) includes two L-shaped brackets (11) and a crossbeam (12). The two L-shaped brackets (11) are used to fix to the vehicle body. The crossbeam (12) is connected between the two L-shaped brackets (11). The drive shaft (3) is rotatably mounted on the crossbeam (12).

7. The chain-driven vehicle support device according to claim 1, characterized in that: The lifting bracket (2) includes a frame (21) and a support frame (22). The support frame (22) is vertically fixed to the bottom end of the frame (21) for placing goods. The upper and lower ends of the chain (6) are respectively fixed to the upper and lower beams of the frame (21).

8. The chain-driven vehicle support device according to claim 3, characterized in that: The lifting motor (8) is a reversible motor, and the lifting bracket (2) can be raised and lowered by controlling the forward and reverse rotation of the lifting motor (8).

9. The chain-driven vehicle support device according to claim 1, characterized in that: A handle is installed on the drive shaft (3), and the drive shaft (3) is rotated by manually driving the handle.

10. The chain-driven vehicle support device according to claim 1, characterized in that: The tension sprocket (5) is mounted in an adjustable position on the fixing frame (1) to adjust the tension of the chain (6).

Images