Flatbed cart mounting device and vehicle

Abstract

This invention discloses a flatbed trolley mounting device, comprising a bracket mounted on a longitudinal beam of a vehicle frame for supporting the flatbed trolley, a first limiting member mounted on the bracket for limiting the flatbed trolley in the X direction, and an elastic rope for securing the flatbed trolley to the bracket. This flatbed trolley mounting device allows for the effective placement and fixation of the flatbed trolley on a cargo vehicle; the limiting mechanism ensures that the flatbed trolley will not detach from the front or rear when the vehicle is in motion; the elastic rope and hook prevent the trolley from detaching from the side; when the trolley needs to be quickly removed, the elastic rope hook can be released to quickly remove the trolley from the side. This invention also discloses a vehicle.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology. Specifically, this invention relates to a flatbed trolley mounting device and a vehicle. Background Technology

[0002] During the use of cargo vehicles, users often carry portable flatbed trolleys to transfer goods. Conventional vehicle designs do not take into account the loading, unloading, and securing of flatbed trolleys, leading some users to place them inside the cargo compartment without securing them. This makes it easy for the flatbed trolleys to collide with other goods or cause damage to the cargo compartment.

[0003] Furthermore, some users arbitrarily hang flatbed carts at the rear of the vehicle's cargo compartment, compromising the safety of the rear of the vehicle. In the event of a collision, this could easily cause injury to pedestrians and damage to other items and vehicles.

[0004] The aim is to provide a flatbed trolley mounting device, particularly regarding how to effectively place and secure the flatbed trolley on a cargo vehicle, thereby improving safety and reliability. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a flatbed trolley mounting device, the purpose of which is to achieve effective placement and fixation of the flatbed trolley on a cargo vehicle.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a flatbed trolley mounting device, including a bracket disposed on the longitudinal beam of the frame for supporting the flatbed trolley, a first limiting member disposed on the bracket for limiting the flatbed trolley in the X direction, and an elastic rope for binding and fixing the flatbed trolley to the bracket.

[0007] The bracket includes a first fixing member connected to the longitudinal beam of the frame, a second fixing member connected to the first fixing member, and a second limiting member connected to the second fixing member and used to limit the flatbed trolley in the Y direction.

[0008] The first fixing member is parallel to the Z-direction, the second fixing member is parallel to the Y-direction, and the second limiting member is parallel to the X-direction.

[0009] Multiple first and second fasteners are provided.

[0010] The bracket also includes a mounting plate that connects to all the first fasteners.

[0011] The second limiting member is connected to all the second fixing members.

[0012] The flatbed trolley installation device further includes an adjustment mechanism connected to the first limiting member. The adjustment mechanism is configured to control the first limiting member to move along the X direction, thereby adjusting the position of the first limiting member.

[0013] The adjustment mechanism includes a drive motor and a power transmission mechanism. The power transmission mechanism is connected to a first transmission mechanism and a second transmission mechanism. The first transmission mechanism is connected to the drive motor, and the second transmission mechanism is connected to the first limiting member. A first force sensor is provided on the first limiting member, and a second force sensor is provided on the second fixing rod.

[0014] The first transmission mechanism is a worm gear mechanism, and the second transmission mechanism is a gear and rack mechanism.

[0015] The present invention also provides a vehicle including the aforementioned flatbed trolley mounting device.

[0016] The flatbed trolley installation device of the present invention can effectively place and fix the flatbed trolley on a cargo vehicle; at the same time, the limiting mechanism ensures that the flatbed trolley will not fall off from the front or rear when the vehicle is moving, and the elastic rope and hook restrict the flatbed trolley from falling off from the side; when it is necessary to quickly remove the flatbed trolley, the elastic rope and hook can be released to quickly remove the trolley from the side; while meeting driving safety, it improves the convenience of loading and unloading goods for users, and improves safety and reliability. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following:

[0018] Figure 1 This is a structural diagram of a cargo vehicle;

[0019] Figure 2 This is a diagram illustrating the installation of a flatbed trolley;

[0020] Figure 3 This is a schematic diagram of the regulating mechanism;

[0021] Figure 4 This is a schematic diagram showing the connection between the mounting component and the longitudinal beams of the chassis;

[0022] Figure 5 This is a partial structural diagram of the connecting mechanism in its initial state;

[0023] Figure 6 This is a partial structural diagram of the connecting mechanism in use;

[0024] The components in the diagram are labeled as follows: 1. First fixing component; 2. Second fixing component; 3. First limiting component; 4. Second limiting component; 5. Mounting plate; 6. Front limiting block; 7. Elastic rope; 8. Frame longitudinal beam; 9. Drive motor; 10. Worm gear; 11. Worm wheel; 12. Drive gear; 13. Rack; 14. First bolt; 15. First nut; 16. Second nut; 17. Hexagonal head; 18. Anti-loosening element; 19. First deformation groove; 20. Second deformation groove; 21. First surface; 22. Second surface; 23. Third surface; 24. Fourth surface; 25. First side plate; 26. Second side plate; 27. Third side plate. Detailed Implementation

[0025] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and to facilitate its implementation.

[0026] It should be noted that in the following embodiments, the terms "first," "second," and "third" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution; they are merely for the convenience of description.

[0027] Example 1

[0028] like Figures 1 to 3 As shown, an embodiment of the present invention provides a flatbed trolley installation device, including a bracket disposed on the longitudinal beam 8 of the frame for supporting the flatbed trolley, a first limiting member 3 disposed on the bracket for limiting the flatbed trolley in the X direction, and an elastic rope 7 for binding and fixing the flatbed trolley to the bracket.

[0029] Specifically, such as Figure 1 and Figure 2As shown, the bracket includes a first fixing member 1 connected to the longitudinal beam 8 of the frame, a second fixing member 2 connected to the first fixing member 1, and a second limiting member 4 connected to the second fixing member 2 and used to limit the flatbed trolley in the Y direction. The first fixing member 1 is parallel to the Z direction, the second fixing member 2 is parallel to the Y direction, and the second limiting member 4 is parallel to the X direction. The X direction is parallel to the length direction of the frame, the Y direction is parallel to the width direction of the frame, and the Z direction is perpendicular to the X and Y directions. The length direction of the longitudinal beam 8 of the frame is parallel to the X direction. One end of the second fixing member 2 is fixedly connected to the lower end of the first fixing member 1, and the second limiting member 4 is fixedly connected to the other end of the second fixing member 2. The first fixing member 1 and the second limiting member 4 are arranged opposite each other, on the same straight line parallel to the Y direction, and the first fixing member 1 and the second limiting member 4 are located above the second fixing member 2. The first fixing member 1, the second fixing member 2, and the second limiting member 4 surround and form a positioning groove for accommodating the flatbed trolley. When placing the flatbed trolley, insert it downwards into the positioning slot to achieve positioning. The first fixing member 1 and the second limiting member 4 are located on opposite sides of the flatbed trolley, and the second fixing member 2 is located below the flatbed trolley. Then, use the elastic rope 7 to secure the flatbed trolley to the bracket, making it less likely to shake or loosen during vehicle movement. The lower end of the elastic rope 7 is connected to the second limiting member 4, and the upper end of the elastic rope 7 is connected to the longitudinal beam 8 of the frame via a hook. When it is necessary to remove the flatbed trolley, loosen the hook at the upper end of the elastic rope 7, the elastic rope 7 separates from the flatbed trolley, and the flatbed trolley can be quickly removed from the side of the bracket.

[0030] In embodiments of the present invention, such as Figure 1 and Figure 2 As shown, there are two first fixing members 1 and two second fixing members 2. All first fixing members 1 are arranged sequentially along the length of the longitudinal beam 8 of the frame. Each second fixing member 2 is fixedly connected to the lower end of a first fixing member 1. The second limiting member 4 is fixedly connected to all second fixing members 2. This bracket structure has high strength and strong load-bearing capacity.

[0031] like Figure 1 and Figure 2 As shown, the bracket also includes a mounting plate 5 that is fixedly connected to all the first fasteners 1, and the mounting plate 5 is parallel to the Z direction.

[0032] like Figure 1 and Figure 2 As shown, a front limiting block 6 is provided on the longitudinal beam 8 of the frame. The front limiting block 6 and the first limiting member 3 are on the same straight line parallel to the X direction. The bracket is located between the front limiting block 6 and the first limiting member 3. The front limiting block 6 and the first limiting member 3 are used to limit the flatbed trolley in the X direction. The front limiting block 6 and the first limiting member 3 are respectively used to contact the opposite end faces of the flatbed trolley in the length direction.

[0033] like Figures 1 to 3 As shown, the flatbed trolley mounting device of this embodiment further includes an adjustment mechanism connected to the first limiting member 3. The adjustment mechanism is configured to control the first limiting member 3 to move along the X-direction, thereby adjusting the position of the first limiting member 3. The adjustment mechanism is integrated on the mounting plate 5, improving integration and creating a compact structure. The positioning groove and the adjustment mechanism are located on opposite sides of the mounting plate 5, and the adjustment mechanism is located below the longitudinal beam 8 of the frame, facilitating placement and maximizing space utilization. By controlling the movement of the first limiting member 3 along the X-direction through the adjustment mechanism, the position of the first limiting member 3 in the X-direction can be adjusted, thereby adjusting the distance between the first limiting member 3 and the front limiting block 6. This allows for the fulfillment of the limiting requirements of flatbed trolleys of different lengths, matching flatbed trolleys of varying lengths, thus improving the versatility of the flatbed trolley mounting device and meeting the needs of different users.

[0034] In embodiments of the present invention, such as Figure 3 As shown, the adjustment mechanism includes a drive motor 9 and a power transmission mechanism. The power transmission mechanism is connected to a first transmission mechanism and a second transmission mechanism. The first transmission mechanism is connected to the drive motor 9, and the second transmission mechanism is connected to a first limiting member 3. A first force sensor is installed on the first limiting member 3, and a second force sensor is installed on the second fixed rod. The first transmission mechanism is a worm gear mechanism, and the second transmission mechanism is a gear and rack mechanism. The worm 10 of the first transmission mechanism is fixedly connected to the output end of the drive motor 9. The worm gear 11 meshes with the worm 10. The worm gear 11 is coaxially fixedly connected to the driving gear 12 of the second transmission mechanism. The driving gear 12 meshes with the rack 13, and the rack 13 is fixedly connected to the first limiting member 3. The two move synchronously. The rack 13 is movable. A guide mechanism for guiding the rack 13 is provided on the mounting plate 5. The moving direction of the rack 13 is parallel to the X-axis. The drive motor 9 is fixedly connected to the mounting plate 5. After the drive motor 9 starts running, the power is transmitted through the power transmission mechanism. The rack 13 moves linearly along the X direction, and the rack 13 drives the first limiting member 3 to move synchronously, thereby realizing the position adjustment of the first limiting member 3. This adjustment mechanism adopts a worm gear mechanism. Since the worm gear and worm have a self-locking function, after the position of the first limiting member 3 is adjusted to the correct position, it can prevent the first limiting member 3 from changing position, thus eliminating the need for a separate locking mechanism, improving reliability, and reducing costs.

[0035] In this embodiment of the invention, a first force sensor is provided on the first limiting member 3 to detect pressure, a second force sensor is provided on the second fixing rod to detect pressure, and the drive motor 9, the first force sensor, and the second force sensor are electrically connected to the control system provided on the vehicle.

[0036] In the initial state, the first limiting member 3 is at its furthest position from the bracket, in an initial safe position to prevent collisions when the trolley is placed. The operator places the flatbed trolley on the bracket, and the trolley engages with the front limiting block 6. The second force sensor on the second fixing rod detects a pressure signal (exceeding a preset threshold), indicating that the flatbed trolley has been initially placed in position. The control system receives the signal and enters automatic adjustment mode.

[0037] The control system sends a command, driving motor 9 to rotate forward. Power is transmitted sequentially through the worm gear, worm wheel, drive gear, and rack, propelling the first limiting member 3 slowly towards the flatbed trolley along the X-axis. During the movement of the first limiting member 3, a first force sensor integrated on the first limiting member 3 continuously monitors the contact force with the end face of the flatbed trolley. When the first force sensor detects that the contact force reaches a preset threshold, it determines that the first limiting member 3 has made proper contact with the flatbed trolley, and the control system immediately stops driving motor 9, adjusting the position of the first limiting member 3 to the correct position. Finally, the elastic rope 7 is tightened to further secure the flatbed trolley to the bracket, ensuring stability.

[0038] In this embodiment of the invention, based on the closed-loop feedback of the force sensor, different length trolleys can be adapted without manual intervention.

[0039] Example 2

[0040] In embodiments of the present invention, such as Figure 4 As shown, a mounting component is provided at the upper end of the first fixing component 1. The mounting component has a U-shaped structure and is mounted on the longitudinal beam of the frame 8. The mounting component includes a first side plate 25, a second side plate 26, and a third side plate 27 connected in sequence. The first side plate 25 and the third side plate 27 are arranged opposite each other and are parallel to each other. The lower end of the first side plate 25 is fixedly connected to the upper end of the first fixing frame. The mounting component is connected to the longitudinal beam of the frame 8 through a connecting mechanism. The second side plate 26 is located above the longitudinal beam of the frame 8. The first side plate 25 and the third side plate 27 are located on opposite sides of the longitudinal beam of the frame 8, respectively.

[0041] like Figures 4 to 6 As shown, the connecting mechanism includes a first bolt 14, a first nut 15, and a second nut 16. Through holes for the first bolt 14 are provided on the frame longitudinal beam 8, the first side plate 25, and the third side plate 27. The first side plate 25 is in contact with the end face of the hexagonal head of the first bolt 14. The first nut 15 and the second nut 16 are threadedly connected to the first bolt 14. The second nut 16 is located between the first nut 15 and the third side plate 27. The first nut 15 is a standard nut. The second nut 16 is fixedly connected to the first nut 15. The second nut 16 is made of an elastic material, and both the second nut 16 and the first nut 15 are made of metal. The second nut 16 can undergo elastic deformation. The center holes of the second nut 16 and the first nut 15 are threaded holes.

[0042] like Figures 4 to 6 As shown, the connecting mechanism also includes an anti-loosening element 18 disposed between the external threads of the second nut 16 and the first bolt 14. The second nut 16 is provided with a positioning groove to accommodate the anti-loosening element 18, and the anti-loosening element 18 is sandwiched between the first nut 15 and the second nut 16. The anti-loosening element 18 is a rubber ring with a circular structure. The anti-loosening element 18 is sleeved on the first bolt 14, and the anti-loosening element 18, the first bolt 14, the second nut 16, and the first nut 15 are coaxially arranged.

[0043] During the tightening of the first nut 15, the second nut 16 deforms, generating an elastic force on the first bolt 14 in both axial and radial inward (towards the axis). The second nut 16 fits tightly against the first bolt 14, with its internal thread engaging closely with the external thread of the first bolt 14, achieving an anti-loosening effect and axially limiting the first nut 15, making it less prone to loosening and improving the reliability of the bracket installation. Furthermore, during the tightening of the first nut 15, the anti-loosening element 18 deforms under the pressure of the first nut 15 and the second nut 16. The anti-loosening element 18 deforms radially along the first bolt 14, embedding itself in the groove between two adjacent threads on the first bolt 14. The anti-loosening element 18 presses against the first bolt 14, increasing additional friction. The cooperation between the anti-loosening element 18 and the second nut 16 further enhances the anti-loosening effect.

[0044] like Figures 4 to 6 As shown, a first deformation groove 19 and a second deformation groove 20 are respectively provided on the first surface 21 and the second surface 22 of the second nut 16. The distance between the first deformation groove 19 and the axis of the second nut 16 is greater than the distance between the second deformation groove 20 and the axis of the second nut 16. The first surface 21 and the second surface 22 are opposite side surfaces of the second nut 16. The first surface 21 is in contact with one end face of the first nut 15 in the axial direction. The first surface 21 and the second surface 22 are planes perpendicular to the axis of the second nut 16. The first deformation groove 19 is a groove extending along the entire circumference on the first surface 21, and the second deformation groove 20 is a groove extending along the entire circumference on the second surface 22. The first deformation groove 19 and the second deformation groove 20 are arc-shaped grooves. The provision of the first deformation groove 19 and the second deformation groove 20 increases the deformation space of the second nut 16 when subjected to pressure.

[0045] In this embodiment of the invention, the second nut 16 is further provided with weakening grooves. Multiple weakening grooves are provided, and all weakening grooves are evenly distributed circumferentially with the axis of the second nut 16 as the center line. The weakening grooves extend radially along the second nut 16, starting from the first deformation groove 19 and extending to the center of the second nut 16. The weakening grooves are also provided through the second nut 16 axially, dividing the second nut 16 into multiple segments. Simultaneously, the first deformation groove 19 and the second deformation groove 20 are staggered, facilitating deformation of the second nut 16. The weakening grooves not only further increase the deformation space but also reduce the overall rigidity by dividing the second nut 16 into multiple segments. This design makes it easier for the second nut 16 to undergo the expected deformation under stress and ensures that the nut is not damaged during deformation. The staggered arrangement of the first deformation groove 19 and the second deformation groove 20 avoids mutual interference between them during deformation, ensuring the uniformity and controllability of the deformation.

[0046] like Figures 4 to 6 As shown, the second nut 16 has a third surface 23 and a fourth surface 24, which are opposite side surfaces of the second nut 16. The third surface 23 is located between the first surface 21 and the anti-loosening element 18, which is located between the axis of the third surface 23 and the axis of the second nut 16. The fourth surface 24 is located between the axis of the second surface 22 and the axis of the second nut 16. The third surface 23 and the fourth surface 24 are planes perpendicular to the axis of the second nut 16. The first surface 21 and the third surface 23 are located at one end of the second nut 16, and the second surface 22 and the fourth surface 24 are located at the other end of the second nut 16. In the initial state, as shown... Figure 5 As shown, the first nut 15 is not tightened, there is a gap between the third surface 23 and the end face of the first nut 15, and the distance between the second surface 22 and the first nut 15 is less than the distance between the fourth surface 24 and the first nut 15. That is, the first surface 21 and the third surface 23 are not in the same plane perpendicular to the axis of the second nut 16, and the second surface 22 and the fourth surface 24 are also not in the same plane perpendicular to the axis of the second nut 16. The fourth surface 24 will contact the surface of the third side plate 27 before the second surface 22.

[0047] like Figure 6 As shown, after the first nut 15 is tightened, the second nut 16 deforms. The first nut 15 and the third nut are in contact with the same end face of the first nut 15. The first surface 21 and the third surface 23 are in the same plane perpendicular to the axis of the second nut 16. The second surface 22 and the fourth surface 24 are also in the same plane perpendicular to the axis of the second nut 16. The second surface 22 and the fourth surface 24 are in contact with the same surface of the third side plate 27.

[0048] The second nut 16 in the above structure has its two end surfaces arranged in a staggered manner. In this way, during the tightening process of the first nut 15, the greater the axial pressure applied by the first nut 15 to the second nut 16, the greater the deformation of the second nut 16. The metal at the positions of the third surface 23 and the fourth surface 24 is more likely to deform, making it easier to reduce the gap of the weakening groove. The threads of the second nut 16 are more likely to engage with the threads of the first bolt 14, further improving the anti-loosening effect.

[0049] The bracket is installed on the longitudinal beam 8 of the frame through the connection mechanism of the above structure, which can prevent loosening during vehicle operation, improve reliability, and facilitate disassembly and assembly. When the vehicle does not need to be equipped with a flatbed trolley, the mounting device can be completely removed from the frame and installed when needed.

[0050] Example 3

[0051] This invention provides a vehicle including a flatbed trolley mounting device with the above-described structure. The vehicle is a cargo truck, and this flatbed trolley mounting device can be referred to... Figures 1 to 3 Further details will not be elaborated here. Since the vehicle of the present invention includes the flatbed trolley mounting device described in the above embodiments, it possesses all the advantages of the aforementioned flatbed trolley mounting device.

[0052] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A flatbed trolley mounting device, characterized in that: It includes a bracket mounted on the longitudinal beam of the frame for supporting a flatbed trolley, a first limiting member mounted on the bracket for limiting the flatbed trolley in the X direction, and an elastic rope for binding and fixing the flatbed trolley to the bracket.

2. The flatbed trolley mounting device according to claim 1, characterized in that: The bracket includes a first fixing member connected to the longitudinal beam of the frame, a second fixing member connected to the first fixing member, and a second limiting member connected to the second fixing member and used to limit the flatbed trolley in the Y direction.

3. The flatbed trolley mounting device according to claim 2, characterized in that: The first fixing member is parallel to the Z-direction, the second fixing member is parallel to the Y-direction, and the second limiting member is parallel to the X-direction.

4. The flatbed trolley mounting device according to claim 2, characterized in that: Multiple first and second fasteners are provided.

5. The flatbed trolley mounting device according to claim 4, characterized in that: The bracket also includes a mounting plate that connects to all the first fasteners.

6. The flatbed trolley mounting device according to claim 4, characterized in that: The second limiting member is connected to all the second fixing members.

7. The flatbed trolley mounting device according to any one of claims 1 to 6, characterized in that: It also includes an adjustment mechanism connected to the first limiting member, the adjustment mechanism being configured to control the first limiting member to move along the X direction, thereby realizing the position adjustment of the first limiting member.

8. The flatbed trolley mounting device according to claim 7, characterized in that: The adjustment mechanism includes a drive motor and a power transmission mechanism. The power transmission mechanism is connected to a first transmission mechanism and a second transmission mechanism. The first transmission mechanism is connected to the drive motor, and the second transmission mechanism is connected to the first limiting member. A first force sensor is provided on the first limiting member, and a second force sensor is provided on the second fixing rod.

9. The flatbed trolley mounting device according to claim 8, characterized in that: The first transmission mechanism is a worm gear mechanism, and the second transmission mechanism is a gear and rack mechanism.

10. A vehicle, characterized in that: Includes the flatbed trolley mounting device as described in any one of claims 1 to 9.

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