Vehicle tail supporting mechanism

Abstract

The invention discloses a vehicle tail supporting mechanism which comprises an operation plate, two through holes are formed in each of the two sides of the operation plate, a cross rod is movably installed in any one through hole, the same fixing block is fixedly installed at one ends of the two corresponding cross rods, the same connecting rod is fixedly installed at the other ends of the two corresponding cross rods, and the connecting rod is movably installed in the operation plate. Linkage racks are fixedly installed on the sides, close to each other, of the two connecting rods, a rotating shaft and a worm are rotationally installed in the operation plate, the rotating shaft is fixedly sleeved with a worm gear and a linkage gear, the two linkage racks are meshed with the linkage gear, and the worm is meshed with the worm gear. Electric telescopic rods are rotationally installed in the two fixing blocks, and center shafts are rotationally installed in the two fixing blocks. The vehicle tail supporting mechanism is simple in structure and convenient to use, the supporting device of the vehicle tail supporting mechanism is convenient to adjust, vehicle tails of different sizes can be conveniently supported, and the applicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of vehicles, in particular to a vehicle rear support mechanism. Background Art

[0002] Low bed trailers are usually used to transport heavy vehicles, rail vehicles, mining machinery, forestry machinery, construction machinery and other heavy goods. The lower the center of gravity, the better the stability and safety, and the stronger the ability to transport extra-high goods and pass overhead obstacles. During the use of low bed trailers, if the goods to be loaded or unloaded are heavy, when the goods move to the rear of the trailer, the rear will be subject to greater pressure, causing the front of the trailer to be light and the back to be heavy, which in turn causes the front of the trailer to be tilted, which may damage the front of the trailer, and there are also certain safety issues.

[0003] Patent application number CN202420889699.0 discloses a rear support device for a tow truck, including a vehicle chassis, a subframe fixedly connected to the vehicle chassis, a rotating support plate connected to the subframe, a fixing seat provided on the side of the subframe away from the vehicle chassis, a support assembly hingedly mounted on the fixing seat, and the other end of the support assembly rotatably connected to the rotating support plate. The present invention belongs to the field of vehicle technology, and specifically refers to a rear support device for a tow truck, which overcomes the problem that the subframe has no support device when the tow truck is working, is easily deformed under pressure, and thus affects its service life.

[0004] However, there are still some shortcomings: the above-mentioned supporting device is not easy to adjust, is not easy to support the rear of vehicles of different sizes, and has limited applicability.

[0005] Based on this, this solution proposes a vehicle rear support mechanism. Summary of the invention

[0006] The object of the present invention is to provide a vehicle rear support mechanism to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a vehicle rear support mechanism, comprising an operating panel,

[0008] Two through holes are provided on both sides of the operation panel, and a cross bar is movably installed in any through hole, and a same fixing block is fixedly installed on one end of the two corresponding cross bars, and a same connecting rod is fixedly installed on the other end of the two corresponding cross bars, and a linkage rack is fixedly installed on the side of the two connecting rods close to each other;

[0009] A rotating shaft and a worm are rotatably mounted in the operating panel, a worm wheel and a linkage gear are fixedly sleeved on the rotating shaft, two linkage racks are meshed with the linkage gear, and the worm is meshed with the worm wheel;

[0010] Electric telescopic rods are rotatably installed in the two fixed blocks, and central shafts are rotatably installed in the two fixed blocks. Two connecting rods and two hinged rods are fixedly sleeved on the two central shafts. The corresponding two hinged rods are rotatably connected to the corresponding electric telescopic rods respectively, and the same moving wheel is rotatably installed between the corresponding two connecting rods.

[0011] Preferably, one end of the worm is fixedly sleeved with a limit gear and a crank.

[0012] By adopting the technical solution, the worm can be easily rotated by the crank.

[0013] Preferably, a mounting block is fixedly mounted on one side of the operating panel close to the limit gear, a locking bolt is threadedly mounted on the mounting block, and a knob is rotatably mounted on one end of the locking bolt.

[0014] By adopting the above technical solution, the locking bolt is driven to rotate inwardly through the inward locking rotation of the locking knob, and the locking bolt pushes the limit rack to move inward, so that the limit rack and the limit gear are engaged, and the worm can be locked and fixed. The positions of the two fixed blocks can be locked and fixed based on the self-locking property of the worm and the worm wheel.

[0015] Preferably, mounting ears are fixedly mounted on both fixing blocks.

[0016] By adopting the above technical solution, the entire device can be installed and fixed on the rear of the vehicle using two mounting ears.

[0017] Preferably, a return spring is sleeved on any cross bar, one end of any return spring is fixed on the corresponding cross bar, and the other end of any return spring is fixed on the inner wall of the corresponding through hole.

[0018] By adopting the above technical solution, the reset spring facilitates the reset of the cross bar.

[0019] Preferably, the two linked racks are symmetrically arranged.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: first, the rotation of the worm is driven by turning the crank handle, and the worm drives the rotation of the worm wheel, which can drive the rotation of the rotating shaft and the linkage gear, and the linkage gear drives the two linkage racks to move left and right separately, which can drive the two connecting rods to move left and right separately, which can drive the two fixed blocks to move left and right separately, and the distance between the two fixed blocks can be adjusted, which is convenient for supporting the rear of vehicles with different widths, and then the inward locking rotation of the locking bolt is driven by the inward locking rotation of the locking knob, and the locking bolt pushes the inward movement of the limit rack, so that the limit rack is meshed with the limit gear, and the worm is locked and fixed, and the positions of the two fixed blocks can be locked and fixed on the basis of the self-locking property of the worm and the worm wheel, and the entire device can be installed and fixed on the rear of the vehicle by using two mounting ears, and then the two articulated rods are driven to flip downward by starting the two electric telescopic rods, which can drive the two moving wheels to flip downward, so that the two moving wheels both contact the ground, and the rear of the vehicle can be supported without hindering movement. The invention has a simple structure and is easy to use. The support device of the vehicle rear support mechanism is easy to adjust and is convenient for supporting the rear of vehicles of different sizes, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 is a side perspective view of the present invention;

[0023] Figure 3 A three-dimensional diagram of the internal structure of the operating panel of the present invention;

[0024] Figure 4 It is a schematic structural diagram of part A of the present invention.

[0025] In the figure: 1. operating panel; 2. reset spring; 3. cross bar; 4. moving wheel; 5. fixing block; 6. mounting ear; 7. electric telescopic rod; 8. limit rack; 9. crank; 10. mounting block; 11. knob; 12. locking bolt; 13. hinged rod; 14. connecting rod; 15. connecting rod; 16. rotating shaft; 17. worm; 18. worm wheel; 19. linkage gear; 20. linkage rack; 21. limit gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-4 The present invention provides a technical solution: a vehicle rear support mechanism, including an operating panel 1, two through holes are provided on both sides of the operating panel 1, a cross bar 3 is movably installed in any through hole, one end of the corresponding two cross bars 3 is fixedly installed with the same fixed block 5, the other end of the corresponding two cross bars 3 is fixedly installed with the same connecting rod 15, the side of the two connecting rods 15 close to each other is fixedly installed with a linkage rack 20, a rotating shaft 16 and a worm 17 are rotatably installed in the operating panel 1, and a worm wheel 18 and a linkage gear are fixedly sleeved on the rotating shaft 16 19, two linkage racks 20 are meshed with the linkage gear 19, the worm 17 is meshed with the worm wheel 18, one end of the worm 17 is fixedly sleeved with the limit gear 21 and the crank 8, the two fixed blocks 5 are rotatably installed with the electric telescopic rod 7 and the two fixed blocks 5 are rotatably installed with the center shaft, the two center shafts are fixedly sleeved with two connecting rods 14 and two articulated rods 13, the corresponding two articulated rods 13 are respectively rotatably connected with the corresponding electric telescopic rods 7, and the same moving wheel 4 is rotatably installed between the two corresponding connecting rods 14, the two fixed blocks 5 are fixedly installed with mounting ears 6, any cross bar 3 is sleeved with a reset spring 2, one end of any reset spring 2 is fixed on the corresponding cross bar 3, and the other end of any reset spring 2 is fixed on the inner wall of the corresponding through hole. The two linkage racks 20 are symmetrically arranged. Through the above-mentioned structural arrangement, firstly, the rotation of the worm 17 is driven by rotating the crank 9, and the worm 17 drives the rotation of the worm wheel 18, which can drive the rotation of the rotating shaft 16 and the linkage gear 19, and the linkage gear 19 drives the two linkage racks 20 to move left and right separately. The two connecting rods 15 can be driven to move apart to the left and right, and the two fixing blocks 5 can be driven to move apart to the left and right, and the distance between the two fixing blocks 5 can be adjusted, so as to support the rear of vehicles with different widths. The whole device can be installed and fixed on the rear of the vehicle by using the two mounting ears 6, and then the two articulated rods 13 can be driven to flip downward by starting the two electric telescopic rods 7, so as to drive the two moving wheels 4 to flip downward, so that the two moving wheels 4 are in contact with the ground, so as to support the rear of the vehicle without hindering the movement.

[0028] Combination Figure 1-4 As shown, a mounting block 10 is fixedly installed on one side of the operating panel 1 close to the limit gear 21, and a locking bolt 12 is threadedly installed on the mounting block 10. A knob 11 is rotatably installed on one end of the locking bolt 12. Through the above-mentioned structural arrangement, the locking bolt 12 is driven to rotate inwardly for locking by rotating the knob 11 inwardly for locking, and the locking bolt 12 pushes the limit rack 8 to move inward, so that the limit rack 8 is meshed with the limit gear 21, and the worm 17 can be locked and fixed, and the positions of the two fixed blocks 5 can be locked and fixed based on the self-locking property of the worm 17 and the worm wheel 18.

[0029] The present invention: firstly, the worm 17 is driven to rotate by rotating the crank 9, and the worm 17 drives the rotation of the worm wheel 18, which can drive the rotation of the rotating shaft 16 and the linkage gear 19, and the linkage gear 19 drives the two linkage racks 20 to move left and right separately, which can drive the two connecting rods 15 to move left and right separately, which can drive the two fixing blocks 5 to move left and right separately, and can adjust the distance between the two fixing blocks 5, so as to facilitate the support of the rear of vehicles with different widths, and then the locking bolt 12 is driven to rotate inwardly by locking and rotating the knob 11 inwardly, and the locking bolt 12 is locked and rotated inwardly, and the locking bolt 12 is locked and rotated inwardly. The bolt 12 pushes the limit rack 8 to move inward, so that the limit rack 8 meshes with the limit gear 21, and the worm 17 can be locked and fixed. On the basis of the self-locking property of the worm 17 and the worm wheel 18, the positions of the two fixing blocks 5 can be locked and fixed. The entire device can be installed and fixed on the rear of the vehicle using the two mounting ears 6. Then, by starting the two electric telescopic rods 7, the two hinged rods 13 are driven to flip downward, which can drive the two moving wheels 4 to flip downward, so that both moving wheels 4 are in contact with the ground, and the rear of the vehicle can be supported without hindering movement. The present invention has a simple structure and is easy to use. The support device of the vehicle rear support mechanism is easy to adjust, so it is easy to support the rear of vehicles of different sizes, and has strong applicability.

[0030] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the present invention have been shown and described, it is understood by ordinary technicians in the field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vehicle rear support mechanism, comprising an operating panel (1), characterized in that: Two through holes are provided on both sides of the operating panel (1), a cross bar (3) is movably installed in any of the through holes, a same fixing block (5) is fixedly installed on one end of the two corresponding cross bars (3), a same connecting rod (15) is fixedly installed on the other end of the two corresponding cross bars (3), and a linkage rack (20) is fixedly installed on the side of the two connecting rods (15) close to each other; A rotating shaft (16) and a worm (17) are rotatably mounted in the operating panel (1), a worm wheel (18) and a linkage gear (19) are fixedly sleeved on the rotating shaft (16), two linkage racks (20) are meshed with the linkage gear (19), and the worm (17) is meshed with the worm wheel (18); An electric telescopic rod (7) is rotatably mounted in both of the two fixed blocks (5), and a central shaft is rotatably mounted in both of the two fixed blocks (5). Two connecting rods (14) and two hinged rods (13) are fixedly sleeved on the two central shafts. The two corresponding hinged rods (13) are rotatably connected to the corresponding electric telescopic rods (7), and the same moving wheel (4) is rotatably mounted between the two corresponding connecting rods (14).

2. A vehicle rear support mechanism according to claim 1, characterized in that: One end of the worm (17) is fixedly sleeved with a limit gear (21) and a crank (8).

3. A vehicle rear support mechanism according to claim 1, characterized in that: A mounting block (10) is fixedly mounted on one side of the operating panel (1) close to the limit gear (21), a locking bolt (12) is threadedly mounted on the mounting block (10), and a knob (11) is rotatably mounted on one end of the locking bolt (12).

4. A vehicle rear support mechanism according to claim 1, characterized in that: The two fixing blocks (5) are both fixedly mounted with mounting ears (6).

5. The vehicle rear support mechanism according to claim 1, characterized in that: A return spring (2) is sleeved on any cross bar (3), one end of any return spring (2) is fixed on the corresponding cross bar (3), and the other end of any return spring (2) is fixed on the inner wall of the corresponding through hole.

6. A vehicle rear support mechanism according to claim 1, characterized in that: The two linked racks (20) are symmetrically arranged.

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