Flat car widening device convenient to disassemble and assemble

Abstract

The invention relates to the field of trailer frames, in particular to a flat car widening device convenient to disassemble and assemble. Which comprises a vehicle body, a base frame and a bearing plate, and further comprises a power mechanism fixedly connected with the base frame and comprising a double-shaft motor fixedly connected with the middle of the base frame; the multiple driving assemblies are symmetrically arranged on the two sides of the output end of the double-shaft motor in an array mode, each driving assembly comprises a worm, a worm gear and a pushing mechanism, the multiple worms located on the same side of the double-shaft motor are coaxially arranged, the double-shaft motor can drive the multiple worms to rotate, the multiple worm gears are meshed with the multiple worms correspondingly, and the pushing mechanism is arranged on the double-shaft motor. The pushing mechanisms are in transmission connection with the worm wheels respectively. The plurality of widening mechanisms are respectively in transmission connection with the plurality of pushing mechanisms, each widening mechanism comprises a widening main plate, a widening auxiliary plate and a heightening auxiliary plate, one end of the widening main plate is rotationally connected with the side wall of the base frame, the widening auxiliary plate is fixedly connected with the other end of the widening main plate, and the heightening auxiliary plate is rotationally connected with the upper end of the widening auxiliary plate.

Description

Technical Field

[0001] The invention relates to the field of trailer frames, and in particular to a flatbed vehicle widening device which is easy to disassemble and assemble. Background Art

[0002] Widening a flatbed truck can increase the space for loading goods without violating regulatory restrictions, thereby increasing the load capacity of a single transport. However, in some special sections, such as width-restricted bridges or tunnels, the widening device may need to be disassembled or adjusted to meet traffic requirements. Therefore, a well-designed widening device should be easy to disassemble and adjust.

[0003] The traditional widening device uses a cylinder to drive the entire widening frame. However, during the cylinder driving process, since the widening device is subjected to vertical force and the cylinder driving force is horizontal force, the overall load-bearing capacity of the frame will decrease as the moving distance increases after moving. At the same time, if a fault occurs when the frame serves as a widening structure, workers will need to dismantle the entire frame for repair, which greatly increases the operating cost.

[0004] In addition, after the existing widening device is started, there will be a gap between the top of the widened part and the top of the base frame on the vehicle body. This gap will make it difficult for loading equipment (such as forklifts, cranes, etc.) to accurately align the position on the flatbed when loading goods, and it will take more time to adjust, thereby reducing the loading efficiency. Therefore, after the existing widening device is started, workers are required to install the heightening frame or heightening block again to compensate for this gap. Or the position of the goods is manually adjusted during loading and unloading. Either of the above methods will affect the safety of the goods during loading. For this reason, we need to redesign the existing widening device to ensure low cost while ensuring the safety of the operator. Summary of the invention

[0005] Based on this, it is necessary to provide a flatbed truck widening device that is easy to disassemble and assemble in response to the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] A flatbed vehicle widening device that is easy to disassemble and assemble comprises a vehicle body, a base frame fixedly connected to the vehicle body, and a bearing plate fixedly connected to the upper end of the base frame, and further comprises:

[0008] A power mechanism is fixedly connected to the base frame, and includes a dual-axis motor, and the dual-axis motor is fixedly connected to the middle part of the base frame;

[0009] A plurality of drive components are arranged in a symmetrical array on both sides of the output end of the dual-axis motor, each drive component includes a worm, a worm wheel and a push mechanism, and the plurality of worms on the same side of the dual-axis motor are arranged coaxially, the dual-axis motor can drive the plurality of worms to rotate, the plurality of worm wheels are respectively meshed with the plurality of worms, and the plurality of push mechanisms are respectively connected to the plurality of worm wheels for transmission;

[0010] A plurality of widening mechanisms are respectively connected to a plurality of pushing mechanisms in a transmission manner. Each widening mechanism has a widening main board, a widening sub-board and a height-adding sub-board. One end of the widening main board is rotatably connected to the side wall of the base frame, the widening sub-board is fixedly connected to the other end of the widening main board, and the height-adding sub-board is rotatably connected to the upper end of the widening sub-board.

[0011] Furthermore, the power mechanism also includes two first bevel teeth, two second bevel teeth and two active roller shafts. The two first bevel teeth are respectively coaxially fixed to the two output ends of the dual-axis motor, the two second bevel teeth are respectively meshed with the two first bevel teeth, the two active roller shafts are respectively coaxially fixed to the two second bevel teeth, and the active roller shaft is coaxially fixed to the worm.

[0012] Furthermore, the pushing mechanism also includes a first gear, a second gear, a driving gear, a magnetic roller, a driven roller, a limit latch and a driven gear. The driving gear is fixedly connected to the worm gear coaxially, the driven gear is meshed with the driving gear, the magnetic roller is coaxially arranged at the upper end of the driving gear and is fixedly connected to the driving gear, the magnetic roller is rotatably connected to the top plate inside the base frame, the first gear is connected to the magnetic roller through a magnetic coaxial transmission, the second gear is meshed with the first gear, the driven roller is rotatably connected to the base frame, the second gear is fixedly connected to the upper end of the driven roller, a limit arc groove is formed on the second gear, one end of the limit latch is fixedly connected to the base frame, and the other end is slidably connected to the limit arc groove, the widened main board is fixedly connected to the driven roller coaxially, and the transmission ratio of the driving gear and the driven gear is greater than the transmission ratio of the first gear and the second gear.

[0013] Furthermore, the pushing mechanism also includes an active bevel gear, a driven bevel gear, a magnetic disc, a magnetic cam and a sliding roller. The active bevel gear is fixedly connected to the driven gear coaxially, the driven bevel gear is meshed with the active bevel gear, the magnetic disc is arranged below the active bevel gear and fixedly connected to the active bevel gear coaxially, the sliding roller is keyed to the driven bevel gear coaxially, the magnetic cam is coaxially arranged at the lower end of the magnetic disc and is connected to the magnetic disc through magnetic force, and one end of the sliding roller extends into the inner side of the base frame and abuts against the outer edge of the magnetic cam.

[0014] Furthermore, the pushing mechanism also includes a stop pin and a positioning pillar. The positioning pillar is arranged at the lower end of the magnetic cam and is fixedly connected to the base frame. The positioning pillar is coaxially rotatably connected to the magnetic cam. A stop arc groove is formed at the upper end of the positioning pillar. The stop pin is fixedly connected to the lower end of the magnetic cam, and the lower end of the stop pin is slidably connected to the stop arc groove.

[0015] Furthermore, the pushing mechanism also includes a positioning chassis, a reset spring and a driving chassis. The positioning chassis is rotatably connected to the base frame, the positioning chassis is coaxially keyed to the sliding roller, the driving chassis is coaxially fixedly connected to a side of the sliding roller away from the magnetic cam, the reset spring is sleeved on the outside of the sliding roller, one end of the reset spring is fixedly connected to the positioning chassis, and the other end is fixedly connected to the driving chassis.

[0016] Furthermore, the pushing mechanism also includes a driving spring, a limit pin, a transfer pad and a transfer chuck. The limit pin is key-connected to the driving chassis coaxially, the transfer pad is slidingly connected to the driving chassis coaxially, the driving spring is sleeved on the outside of the limit pin, one end of the driving spring is fixedly connected to the driving chassis, and the other end is fixedly connected to the transfer pad. The transfer chuck is rotatably connected to the side wall of the widened sub-plate, and the transfer chuck can be engaged and connected with the transfer pad.

[0017] Furthermore, a plurality of engaging flanges are formed at angles along the circumferential direction on the transfer pad, and a plurality of connecting oblique blocks are formed at equal angles along the circumferential direction on the transfer chuck, a right-angled portion is formed at one end of the connecting oblique block, and an oblique portion is formed at the other end, and the plurality of engaging flanges and the right-angled portions of the plurality of connecting oblique blocks abut against each other.

[0018] Furthermore, the widening mechanism also includes a transfer gear, a transfer gear, a transfer roller, a transfer seat, a connecting gear and a deflection gear. The transfer gear is coaxially fixed to the transfer chuck, the transfer gear is rotatably arranged above the transfer gear through a tooth seat and meshes with the transfer gear, one end of the transfer roller is coaxially fixed to the transfer gear, the transfer seat is arranged at the end of the transfer roller away from the transfer gear and is fixed to the widening sub-plate, the transfer roller is rotationally connected to the transfer seat through a torsion spring, the connecting gear is rotationally connected to the transfer seat and is coaxially fixed to the transfer roller, the deflection gear is rotatably arranged above the connecting gear and meshes with the connecting gear, the deflection gear is coaxially fixed to the movable end of the height-compensating sub-plate, and an avoidance perforation is formed on one side of the height-compensating sub-plate for avoiding the transfer roller.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] First, the power mechanism, drive assembly and widening mechanism in this device are all connected to the base frame. The operator only needs to install the base frame as a whole on the vehicle body to complete the integrated assembly. Compared with the traditional widening device in which the cylinder drives the entire frame to extend and widen, this device improves the load-bearing capacity and disassembly and assembly efficiency of the widening mechanism through modular design. When the local structure fails, this device can quickly replace a single widening mechanism to reduce maintenance costs;

[0021] Secondly, the device uses a height-compensating sub-plate to make up for the height of the widened part, avoiding a gap between the top of the widened part and the top of the base frame after widening, thereby improving the safety of the vehicle body after widening. Workers no longer need to manually adjust the position of the cargo, and the safety of cargo transportation can also be improved.

[0022] Thirdly, the device drives the height-compensating sub-plate by adopting a transfer chuck and a transfer pad, and the transfer chuck and the transfer pad are integrated in the rotation of the widened main plate, which simplifies the structure while avoiding increasing the load on the vehicle body due to excessive load power sources, thereby reducing economic and design costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0024] Figure 2 yes Figure 1 A magnified view of the structure at center;

[0025] Figure 3 is a schematic diagram of the three-dimensional structure of an embodiment;

[0026] Figure 4 yes Figure 2 A magnified view of the structure at B in the middle;

[0027] Figure 5 is a front view of an embodiment;

[0028] Figure 6 yes Figure 5 A magnified view of the structure at C in the middle;

[0029] Figure 7 Schematic diagram of the three-dimensional structure of the driving assembly and the widening mechanism in the embodiment;

[0030] Figure 8 Schematic diagram of the three-dimensional structure of the push mechanism in the embodiment;

[0031] Fig. 9 is a schematic diagram of the three-dimensional structure of the push mechanism in another angle in the embodiment;

[0032] Fig.10 is a half-section view of the three-dimensional structure of the push mechanism in the embodiment;

[0033] Fig.11 3. It is a schematic diagram of the exploded three-dimensional structure of the pushing mechanism in the embodiment;

[0034] Fig.12 yes Fig.11 A magnified view of the structure at D in the middle;

[0035] Fig.13 yes Fig.12 Enlarged view of the structure at point E in the middle.

[0036] The numbers in the figure are:

[0037] 1. Car body; 2. Base frame; 3. Loading plate; 4. Power mechanism; 5. Dual-axis motor; 6. First bevel gear; 7. Second bevel gear; 8. Active roller shaft; 9. Driving assembly; 10. Worm; 11. Worm wheel; 12. Push mechanism; 13. First gear; 14. Second gear; 15. Active gear; 16. Magnetic roller; 17. Driven gear; 18. Limiting arc groove; 19. Limiting pin; 20. Driven roller; 21. Active bevel gear; 22. Driven bevel gear; 23. Magnetic disc; 24. Magnetic cam; 25. Sliding roller; 26. Positioning chassis ; 27. Reset tension spring; 28. Driving chassis; 29. ​​Limit pin; 30. Driving spring; 31. Transfer pad; 32. Engaging flange; 33. Transfer chuck; 34. Connecting bevel block; 35. Right angle portion; 36. Bevel portion; 37. Stop pin; 38. Positioning pillar; 39. Stop arc groove; 40. Widening mechanism; 41. Widening main board; 42. Widening sub-board; 43. Heightening sub-board; 44. Avoiding perforation; 45. Transfer gear; 46. Transfer gear; 47. Transfer roller; 48. Transfer seat; 49. Connecting gear; 50. Deflection gear. DETAILED DESCRIPTION

[0038] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] refer to Figures 1 to 13 A flatbed truck widening device that is easy to disassemble and assemble comprises a vehicle body 1, a base frame 2 fixedly connected to the vehicle body 1, and a bearing plate 3 fixedly connected to the upper end of the base frame 2, and further comprises:

[0040] Power mechanism 4 (such as Figure 5 As shown), it is fixedly connected to the base frame 2, including a dual-axis motor 5, and the dual-axis motor 5 is fixedly connected to the middle part of the base frame 2;

[0041] A plurality of drive components 9 are arranged in a symmetrical array on both sides of the output end of the dual-axis motor 5. Each drive component 9 includes a worm 10, a worm wheel 11 and a push mechanism 12. The plurality of worms 10 on the same side of the dual-axis motor 5 are arranged coaxially. The dual-axis motor 5 can drive the plurality of worms 10 to rotate. The plurality of worm wheels 11 are respectively meshed with the plurality of worms 10. The plurality of push mechanisms 12 are respectively connected to the plurality of worm wheels 11 in a transmission manner (combined with Figure 2 and Figure 7 );

[0042] Several widening mechanisms 40 (such as Figure 4As shown), they are respectively connected to the plurality of pushing mechanisms 12 in transmission, each widening mechanism 40 includes a widening main board 41, a widening sub-board 42 and a height-adding sub-board 43, one end of the widening main board 41 is rotatably connected to the side wall of the base frame 2, the widening sub-board 42 is fixedly connected to the other end of the widening main board 41, and the height-adding sub-board 43 is rotatably connected to the upper end of the widening sub-board 42.

[0043] When the vehicle body 1 needs to be widened, the operator starts the dual-axis motor 5. After the dual-axis motor 5 is started, it will drive the plurality of worm gears 10 to rotate. The plurality of worm gears 10 will drive the corresponding pushing mechanisms 12 to start through the plurality of worm gears 11. After the pushing mechanisms 12 are started, they will first drive the plurality of widening main boards 41 to deflect. After the plurality of widening main boards 41 are deflected, the vehicle body 1 will be widened through the plurality of widening sub-boards 42 fixed thereto. Finally, when the plurality of widening sub-boards 42 are deflected into place, the supplementary height sub-board 43 at the upper end of the widening sub-board 42 will flip upward to make up for the difference between the vehicle body 1 and the widening sub-board 42.

[0044] During this process, the power mechanism 4, the drive assembly 9 and the widening mechanism 40 are all connected to the base frame 2. The operator only needs to install the base frame 2 as a whole on the vehicle body 1 to complete the integrated assembly. Compared with the traditional widening equipment in which the cylinder drives the entire frame to be widened, the several drive assemblies 9 and the several widening mechanisms 40 in this device are respectively modularly designed. When problems occur in some drive assemblies 9 or widening mechanisms 40, the operator can disassemble the corresponding modules as a whole to improve the disassembly and assembly efficiency.

[0045] In order to supplement the structure of the power mechanism 4, the following features are also specifically provided:

[0046] The power mechanism 4 also includes two first bevel teeth 6, two second bevel teeth 7 and two active roller shafts 8. The two first bevel teeth 6 are respectively coaxially connected to the two output ends of the dual-axis motor 5 (refer to Figure 6 ), the two second bevel teeth 7 are meshed with the two first bevel teeth 6 respectively, the two active roller shafts 8 are coaxially fixedly connected with the two second bevel teeth 7 respectively, and the active roller shaft 8 is coaxially fixedly connected with the worm 10 (reference Figure 7 After the dual-axis motor 5 is started, the dual-axis motor 5 drives the two second bevel teeth 7 to rotate through the two first bevel teeth 6, and the two second bevel teeth 7 respectively drive the two active roller shafts 8 to rotate. After the active roller shafts 8 rotate, they drive the multiple worm gears 11 to rotate through the multiple worms 10.

[0047] In order to supplement the specific structure of the pushing mechanism 12, the following features are also specifically provided:

[0048] The pushing mechanism 12 also includes a first gear 13, a second gear 14, a driving gear 15, a magnetic roller 16, a driven roller 20, a limit pin 19 and a driven gear 17. The driving gear 15 is coaxially connected to the worm gear 11 (refer to Figure 7 ), the driven gear 17 is meshed with the driving gear 15, the magnetic roller 16 is coaxially arranged at the upper end of the driving gear 15 and is fixedly connected to the driving gear 15, the magnetic roller 16 is rotatably connected to the base frame 2, the first gear 13 is coaxially connected to the magnetic roller 16 through magnetic force, the second gear 14 is meshed with the first gear 13, the driven roller 20 is rotatably connected to the base frame 2, the second gear 14 is fixedly connected to the upper end of the driven roller 20, a limiting arc groove 18 is formed on the second gear 14, one end of the limiting latch 19 is fixedly connected to the base frame 2, and the other end is slidably connected to the limiting arc groove 18, the widened main board 41 is coaxially fixedly connected to the driven roller 20, and the transmission ratio of the driving gear 15 and the driven gear 17 is greater than the transmission ratio of the first gear 13 and the second gear 14. After the worm gear 11 rotates, the worm gear 11 will drive the driving gear 15 to rotate, and the driving gear 15 will drive the driven gear 17 meshing with it to rotate. At the same time, the driving gear 15 will also drive the first gear 13 to rotate through the magnetic roller 16, and the first gear 13 will also drive the second gear 14 meshing with it to rotate. When the second gear 14 rotates, it will drive the driven roller 20 to rotate. That is, at this time, the second gear 14 will drive the widening main plate 41 and the widening sub-plate 42 to rotate through the driven roller 20, thereby widening the vehicle body 1.

[0049] When the second gear 14 drives the driven roller 20 to rotate, the limit pin 19 and the limit arc groove 18 can limit the rotation range of the second gear 14, thereby ensuring that the widened main plate 41 and the widened sub-plate 42 only rotate 90°. When the limit pin 19 and the boundary of the limit arc groove 18 are against each other, the second gear 14 stops rotating and transmits this resistance to the first gear 13. At this time, relative rotation occurs between the first gear 13 and the magnetic roller 16, that is, the driving gear 15 continues to rotate and will not drive the first gear 13 to rotate.

[0050] Since the transmission ratio of the driving gear 15 and the driven gear 17 is smaller than the transmission ratio of the first gear 13 and the second gear 14, and the driving gear 15 and the first gear 13 have the same rotational speed, the rotational speed of the driven gear 17 is greater than that of the second gear 14, ensuring that when the widening sub-plate 42 is reset, the heightening sub-plate 43 will not collide with the base frame 2 (the specific reason will be explained later).

[0051] In order to supplement the specific structure of the pushing mechanism 12, the following features are also specifically provided:

[0052] The push mechanism 12 also includes an active bevel gear 21, a driven bevel gear 22, a magnetic disc 23, a magnetic cam 24 and a sliding roller 25. The active bevel gear 21 is coaxially fixedly connected to the driven gear 17 (refer to Figure 8 and Fig. 9), the driven bevel gear 22 is meshed with the active bevel gear 21, the magnetic disc 23 is arranged below the active bevel gear 21 and is coaxially fixedly connected with the active bevel gear 21, the slip roller 25 is coaxially keyed with the driven bevel gear 22, the magnetic cam 24 is coaxially arranged at the lower end of the magnetic disc 23 and is transmission-connected with the magnetic disc 23 through magnetism, and one end of the slip roller 25 extends into the inner side of the base frame 2 and abuts against the outer edge of the magnetic cam 24. After the driven gear 17 drives the active bevel gear 21 to rotate, the active bevel gear 21 will drive the magnetic cam 24 to rotate through the magnetic disc 23, and the magnetic cam 24 will push the slip roller 25 to move away from the magnetic cam 24 during the rotation process, and at the same time, the active bevel gear 21 will also drive the slip roller 25 to rotate through the driven bevel gear 22.

[0053] In order to limit the rotation amplitude of the magnetic cam 24, the following features are also specifically provided:

[0054] The push mechanism 12 further includes a stop pin 37 and a positioning support 38. The positioning support 38 is disposed at the lower end of the magnetic cam 24 and is fixedly connected to the base frame 2. The positioning support 38 is coaxially connected to the magnetic cam 24 for rotation (refer to Fig.10 ), the upper end of the positioning support 38 is formed with a stop arc groove 39 (reference Fig.13 ), the stop pin 37 is fixedly connected to the lower end of the magnetic cam 24, and the lower end of the stop pin 37 is slidably connected to the stop arc groove 39. When the magnetic cam 24 rotates, the magnetic cam 24 drives the stop pin 37 to move in the stop arc groove 39 until the stop pin 37 and the groove edge of the stop arc groove 39 abut against each other, at which time the stop pin 37 stops moving, and since the magnetic cam 24 and the magnetic disc 23 are connected by magnetic transmission, the magnetic disc 23 continues to rotate and will be staggered with the magnetic cam 24, and the sliding roller 25 also stops moving, but at this time the active bevel gear 21 will continue to drive the sliding roller 25 to rotate through the driven bevel gear 22.

[0055] In order to explain the purpose of the movement of the slip roller 25, the following features are also specifically provided:

[0056] The push mechanism 12 also includes a positioning chassis 26, a reset tension spring 27 and a driving chassis 28. The positioning chassis 26 is rotatably connected to the base frame 2, and the positioning chassis 26 is coaxially keyed to the sliding roller 25 (refer to Fig.10 ), the driving chassis 28 is coaxially fixedly connected with the side of the sliding roller 25 away from the magnetic cam 24, and the reset spring 27 is sleeved on the outside of the sliding roller 25, one end of the reset spring 27 is fixedly connected with the positioning chassis 26, and the other end is fixedly connected with the driving chassis 28. When the sliding roller 25 moves, the sliding roller 25 will push the driving chassis 28 to move, and at this time the reset spring 27 will be stretched so that the sliding roller 25 can be driven to reset later.

[0057] In order to further supplement the specific structure of the pushing mechanism 12, the following features are also specifically provided:

[0058] The push mechanism 12 also includes a drive spring 30, a limit pin 29, a transfer pad 31 and a transfer chuck 33. The limit pin 29 is coaxially keyed with the drive chassis 28 (refer to Fig.10 ), the transfer pad 31 is slidably connected with the driving chassis 28 coaxially, the driving spring 30 is sleeved on the outside of the limit pin 29, one end of the driving spring 30 is fixedly connected with the driving chassis 28, and the other end is fixedly connected with the transfer pad 31, the transfer chuck 33 is rotatably connected with the side wall of the widening sub-plate 42, and the transfer chuck 33 can be engaged with the transfer pad 31. When the widening sub-plate 42 rotates to the side of the transfer pad 31, the transfer chuck 33 is engaged with the transfer pad 31. At this time, the sliding roller 25 will drive the transfer pad 31 to rotate through the driving chassis 28, and the transfer pad 31 will drive the transfer chuck 33 to rotate after the rotation, and the driving spring 30 can ensure that when the transfer chuck 33 and the transfer pad 31 are against each other, the driving spring 30 can buffer the transfer pad 31, thereby realizing the engagement connection between the transfer chuck 33 and the transfer pad 31.

[0059] In order to realize the engagement and separation of the transfer pad 31 and the transfer chuck 33, the following features are also specifically provided:

[0060] The transfer pad 31 is formed with a plurality of engaging flanges 32 along the circumferential direction, and the transfer chuck 33 is formed with a plurality of connecting inclined blocks 34 along the circumferential direction at equal angles (refer to Fig.12 ), one end of the connecting bevel block 34 is formed with a right angle portion 35, and the other end is formed with an oblique angle portion 36, and a plurality of engaging flanges 32 and a plurality of right angle portions 35 of the connecting bevel blocks 34 are abutted against each other. When the transfer pad 31 rotates, the transfer pad 31 drives the transfer chuck 33 to rotate through the cooperation of a plurality of engaging flanges 32 and a plurality of connecting bevel blocks 34. When the sliding roller 25 reverses, the transfer pad 31 reverses so that the engaging flange 32 is disengaged along the oblique angle portion 36 of the connecting bevel block 34, so that when the sliding roller 25 moves toward the direction close to the magnetic cam 24, the transfer pad 31 can be quickly separated from the transfer chuck 33.

[0061] In order to realize the driving of the height-compensating auxiliary plate 43, the following features are also specifically provided:

[0062] The widening mechanism 40 further includes a transfer gear 45, a transfer gear 46, a transfer roller 47, a transfer seat 48, a connecting gear 49 and a deflection gear 50. The transfer gear 45 is coaxially fixedly connected to the transfer chuck 33 (refer to Figure 7), the transfer gear 46 is rotatably arranged above the intermediate gear 45 through a gear seat and meshed with the intermediate gear 45, one end of the transfer roller 47 is coaxially fixedly connected to the transfer gear 46, the transfer seat 48 is arranged at the end of the transfer roller 47 away from the transfer gear 46 and is fixedly connected to the widening sub-plate 42, the transfer roller 47 is rotatably connected to the transfer seat 48 through a torsion spring, the connecting gear 49 is rotatably connected to the connecting seat 48 and is coaxially fixedly connected to the transfer roller 47, the deflection gear 50 is rotatably arranged above the connecting gear 49 and meshed with the connecting gear 49, the deflection gear 50 is coaxially fixedly connected to the movable end of the supplementary height sub-plate 43, and an avoidance through-hole 44 (reference Figure 7 ). When the widening sub-plate 42 deflects to the side of the transfer pad 31, the transfer gear 45 is coaxially fixedly connected to the transfer chuck 33. At this time, the transfer chuck 33 rotates to drive the transfer gear 46 to rotate through the transfer gear 45. After the transfer gear 46 rotates, it drives the connecting gear 49 to rotate through the transfer roller 47. The connecting gear 49 drives the height-adding sub-plate 43 to rotate through the deflection gear 50 until the height-adding sub-plate 43 moves to the upper end of the widening sub-plate 42. When the sliding roller 25 reverses, the transfer pad 31 and the transfer chuck 33 are separated, and the transfer roller 47 connected to the transfer seat 48 through the torsion spring will reset and rotate, and finally drive the height-adding sub-plate 43 to reset.

[0063] As can be seen from the foregoing, the transmission ratio of the driving gear 15 and the driven gear 17 is smaller than the transmission ratio of the first gear 13 and the second gear 14, and the driving gear 15 and the first gear 13 have the same rotation speed, so the rotation speed of the driven gear 17 is greater than the rotation speed of the second gear 14. When it is necessary to drive the height-adding sub-plate 43 to reset, at this time, since the rotation speed of the driven gear 17 is greater than the rotation speed of the second gear 14, the reverse rotation of the sliding roller 25 will occur before the rotation of the widening sub-plate 42, that is, the reset and folding action of the height-adding sub-plate 43 is performed before the reset and folding action of the widening sub-plate 42, thereby avoiding the collision between the height-adding sub-plate 43 and the upper end of the base frame 2 when the widening sub-plate 42 is reset.

[0064] The structures used for widening in this device are all connected to the base frame 2. The operator only needs to install the base frame 2 as a whole on the vehicle body 1 to complete the integrated assembly. Compared with the traditional widening equipment in which the cylinder drives the entire frame to widen, the several driving components 9 and the several widening mechanisms 40 in this device are respectively modularly designed. When problems occur in some driving components 9 or widening mechanisms 40, the operator can disassemble the corresponding modules as a whole to improve the disassembly and assembly efficiency.

[0065] When the vehicle body 1 is widened, the operator starts the dual-axis motor 5. After the dual-axis motor 5 is started, it will drive the multiple worm gears 10 to rotate. The multiple worm gears 10 will drive the corresponding driven gears 17 and the second gear 14 to rotate through the multiple worm wheels 11. After the driven gear 17 rotates, it will first drive the multiple widening main boards 41 to deflect. After the multiple widening main boards 41 are deflected, the vehicle body 1 will be widened through the multiple widening sub-boards 42 fixedly connected thereto.

[0066] After the second gear 14 rotates, it will drive the sliding roller 25 to move, and at the same time the sliding roller 25 will also rotate. When the widening sub-plate 42 flips to the side of the transfer pad 31, the transfer chuck 33 can be engaged and connected with the transfer pad 31. At this time, the rotation of the sliding roller 25 will also drive the height-compensating sub-plate 43 to flip upward, thereby compensating for the drop between the vehicle body 1 and the widening sub-plate 42.

[0067] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A flatbed vehicle widening device that is easy to disassemble and assemble, comprising a vehicle body (1), a base frame (2) fixedly connected to the vehicle body (1), and a bearing plate (3) fixedly connected to the upper end of the base frame (2), characterized in that: Also includes: A power mechanism (4) is fixedly connected to the base frame (2), and comprises a dual-axis motor (5), wherein the dual-axis motor (5) is fixedly connected to the middle portion of the base frame (2); A plurality of drive components (9) are arranged in a symmetrical array on both sides of the output end of the dual-axis motor (5), each drive component (9) comprises a worm (10), a worm wheel (11) and a push mechanism (12), the plurality of worms (10) located on the same side of the dual-axis motor (5) are coaxially arranged, the dual-axis motor (5) can drive the plurality of worms (10) to rotate, the plurality of worm wheels (11) are respectively meshed with the plurality of worms (10), and the plurality of push mechanisms (12) are respectively connected to the plurality of worm wheels (11) in a transmission manner; A plurality of widening mechanisms (40) are respectively connected to the plurality of push mechanisms (12) in a transmission manner. Each widening mechanism (40) comprises a widening main plate (41), a widening auxiliary plate (42) and a height-adding auxiliary plate (43). One end of the widening main plate (41) is rotatably connected to the side wall of the base frame (2), the widening auxiliary plate (42) is fixedly connected to the other end of the widening main plate (41), and the height-adding auxiliary plate (43) is rotatably connected to the upper end of the widening auxiliary plate (42).

2. The flatbed vehicle widening device that is easy to disassemble and assemble according to claim 1 is characterized in that: The power mechanism (4) also includes two first bevel teeth (6), two second bevel teeth (7) and two active roller shafts (8); the two first bevel teeth (6) are respectively coaxially fixedly connected to the two output ends of the dual-axis motor (5); the two second bevel teeth (7) are respectively meshed with the two first bevel teeth (6); the two active roller shafts (8) are respectively coaxially fixedly connected to the two second bevel teeth (7); and the active roller shaft (8) is coaxially fixedly connected to the worm (10).

3. The flatbed vehicle widening device that is easy to disassemble and assemble according to claim 2 is characterized in that: The pushing mechanism (12) further comprises a first gear (13), a second gear (14), a driving gear (15), a magnetic roller (16), a driven roller (20), a limit latch (19) and a driven gear (17); the driving gear (15) is coaxially fixedly connected to the worm gear (11); the driven gear (17) is meshed with the driving gear (15); the magnetic roller (16) is coaxially arranged at the upper end of the driving gear (15) and is fixedly connected to the driving gear (15); the magnetic roller (16) is rotatably connected to the base frame (2); the first gear (13) and the magnetic roller (16) are coaxially driven by magnetic force. The second gear (14) is connected to the first gear (13), the second gear (14) is meshed with the first gear (13), the driven roller (20) is rotationally connected to the base frame (2), the second gear (14) is fixedly connected to the upper end of the driven roller (20), a limiting arc groove (18) is formed on the second gear (14), one end of the limiting latch (19) is fixedly connected to the base frame (2), and the other end is slidably connected to the limiting arc groove (18), the widening main board (41) is coaxially fixedly connected to the driven roller (20), and the transmission ratio of the driving gear (15) and the driven gear (17) is greater than the transmission ratio of the first gear (13) and the second gear (14).

4. The flatbed vehicle widening device that is easy to disassemble and assemble according to claim 3 is characterized in that: The pushing mechanism (12) further comprises an active bevel gear (21), a driven bevel gear (22), a magnetic disc (23), a magnetic cam (24) and a sliding roller (25); the active bevel gear (21) is fixedly connected to the driven gear (17) coaxially; the driven bevel gear (22) is meshed with the active bevel gear (21); the magnetic disc (23) is arranged below the active bevel gear (21) and is fixedly connected to the active bevel gear (21) coaxially; the sliding roller (25) is key-connected to the driven bevel gear (22) coaxially; the magnetic cam (24) is coaxially arranged at the lower end of the magnetic disc (23) and is transmission-connected to the magnetic disc (23) through magnetic force; one end of the sliding roller (25) extends into the inner side of the base frame (2) and abuts against the outer edge of the magnetic cam (24).

5. The device for widening a flatbed vehicle that is easy to disassemble and assemble according to claim 4, characterized in that: The pushing mechanism (12) also includes a stop pin (37) and a positioning pillar (38). The positioning pillar (38) is arranged at the lower end of the magnetic cam (24) and is fixedly connected to the base frame (2). The positioning pillar (38) is coaxially rotatably connected to the magnetic cam (24). A stop arc groove (39) is formed at the upper end of the positioning pillar (38). The stop pin (37) is fixedly connected to the lower end of the magnetic cam (24). The lower end of the stop pin (37) is slidably connected to the stop arc groove (39).

6. The device for widening a flatbed vehicle that is easy to disassemble and assemble according to claim 4, characterized in that: The pushing mechanism (12) further comprises a positioning chassis (26), a reset tension spring (27) and a driving chassis (28); the positioning chassis (26) is rotatably connected to the base frame (2); the positioning chassis (26) is coaxially key-connected to the sliding roller (25); the driving chassis (28) is coaxially fixedly connected to a side of the sliding roller (25) away from the magnetic cam (24); the reset tension spring (27) is sleeved on the outside of the sliding roller (25); one end of the reset tension spring (27) is fixedly connected to the positioning chassis (26) and the other end is fixedly connected to the driving chassis (28).

7. The easy-to-assemble and disassemble flatbed vehicle widening device according to claim 6, characterized in that: The pushing mechanism (12) further comprises a driving spring (30), a limiting pin (29), a transfer pad (31) and a transfer chuck (33); the limiting pin (29) is coaxially key-connected with the driving chassis (28); the transfer pad (31) is coaxially slidably connected with the driving chassis (28); the driving spring (30) is sleeved on the outside of the limiting pin (29); one end of the driving spring (30) is fixedly connected with the driving chassis (28); the other end is fixedly connected with the transfer pad (31); the transfer chuck (33) is rotatably connected with the side wall of the widened sub-plate (42); and the transfer chuck (33) can be engaged and connected with the transfer pad (31).

8. The device for widening a flatbed vehicle that is easy to disassemble and assemble according to claim 7, characterized in that: A plurality of engaging flanges (32) are formed at an angle along the circumferential direction on the transfer pad (31); a plurality of connecting oblique blocks (34) are formed at equal angles along the circumferential direction on the transfer chuck (33); a right-angled portion (35) is formed at one end of the connecting oblique block (34) and an oblique portion (36) is formed at the other end; and the plurality of engaging flanges (32) and the right-angled portions (35) of the plurality of connecting oblique blocks (34) abut against each other.

9. The flatbed vehicle widening device that is easy to disassemble and assemble according to claim 7, characterized in that: The widening mechanism (40) further comprises a transfer gear (45), a transfer gear (46), a transfer roller (47), a transfer seat (48), a connecting gear (49) and a deflection gear (50); the transfer gear (45) is coaxially fixedly connected to the transfer chuck (33); the transfer gear (46) is rotatably arranged above the transfer gear (45) through a gear seat and meshes with the transfer gear (45); one end of the transfer roller (47) is coaxially fixedly connected to the transfer gear (46); the transfer seat (48) is arranged on the transfer roller (47) away from the transfer gear (46) ) and is fixedly connected to the widening auxiliary plate (42); the transfer roller (47) is rotatably connected to the transfer seat (48) through a torsion spring; the connecting gear (49) is rotatably connected to the transfer seat (48) and is coaxially fixedly connected to the transfer roller (47); the deflection gear (50) is rotatably arranged above the connecting gear (49) and meshes with the connecting gear (49); the deflection gear (50) is coaxially fixedly connected to the movable end of the height-enhancing auxiliary plate (43); and a sideways hole (44) for avoiding the transfer roller (47) is formed on one side of the height-enhancing auxiliary plate (43).

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