A pneumatic cross-arm motorcycle frame lifting device

Abstract

The present invention discloses a pneumatic cross-arm type motorcycle frame lifting device, which relates to the technical field of lifts and includes a base, a support platform is provided on the top of the base, two moving blocks are fixedly connected to a fixing rod on opposite sides, and the front sides of the two fixing rods are fixedly connected to a parking front baffle, the outer side of the rotating plate is rotatably connected to a supporting crank arm, the inner front side of the supporting crank arm is hinged with a rocker arm, the front side of the rocker arm is fixedly connected to a protective frame, the front end of the supporting crank arm is fixedly connected to a protective plate, and a fixed frame is provided at the bottom of the support platform, the top end of the first arc-shaped tooth plate is fixedly connected to a first arc-shaped side plate, and the top end of the second arc-shaped tooth plate is fixedly connected to a second arc-shaped side plate. The pneumatic cross-arm type motorcycle frame lifting device improves the stability of the frame during lifting and lowering, adapts to the frame shapes of different models of motorcycles, limits the frame, prevents the frame from deviating to both sides, and protects the frame.

Description

Technical Field

[0001] The invention relates to the technical field of lifters, in particular to a pneumatic cross-arm type motorcycle frame lifting device. Background Art

[0002] With the rapid increase in the use of motorcycles, society has higher and higher performance requirements for motorcycle maintenance tools and equipment. Motorcycle maintenance has become increasingly formalized, and various professional maintenance tools have emerged, especially motorcycle maintenance workbenches. Since motorcycle maintenance lifting platforms have multiple functions such as lifting and hoisting, they can bring a lot of convenience to maintenance work.

[0003] The utility model patent with authorization announcement number CN222498537U discloses a motorcycle lift with a protective structure, including a support shell and a folding frame. A movable frame is slidably connected to the outside of the support shell, and a fixed frame is overlapped on the support shell. Limiting holes are provided on the front and back of the fixed frame. A rubber block is connected to the fixed frame, and a fixed tube is connected inside the fixed frame.

[0004] The above solution suffers from poor adaptability and instability, making it difficult to meet the support requirements of different motorcycle models. It also fails to effectively limit and support the front fenders, engine, and sides of the frame. Furthermore, the lack of a buffer mechanism during lifting can easily damage the frame or tires due to impact, increasing the complexity of repair operations and posing safety risks. Summary of the Invention

[0005] The object of the present invention is to provide a pneumatic cross-arm motorcycle frame lifting device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pneumatic cross-arm type motorcycle frame lifting device, comprising a base, a support platform is provided on the top of the base, a movable rail is provided on the top of the support platform, movable blocks are slidably connected on both sides of the movable rail, two opposite sides of the movable blocks are fixedly connected to a fixed rod, the front sides of the two fixed rods are fixedly connected to a parking front baffle, the two parking front baffles are arranged opposite to each other, the opposite sides of the two fixed rods are fixedly connected to a support arm, a rotating sleeve is rotatably connected to the support arm, a first threaded rod is slidably connected to the rotating sleeve, the front of the first threaded rod is fixedly connected to a rotating plate, the outer side of the rotating plate is rotatably connected to a support crank arm, the The top of the first arc tooth plate is fixedly connected to the first arc tooth plate, and the top of the second arc tooth plate is fixedly connected to the second arc tooth plate.

[0007] Preferably, the rear end of the support arm is fixedly connected to the first motor, the output end of the first motor is fixedly connected to the rear end of the rotating sleeve, the front end of the support arm is fixedly connected to the threaded sleeve, the first threaded rod passes through the threaded sleeve and is threadedly connected to the threaded sleeve, and limiting grooves are provided on both sides of the first threaded rod, and limiting plates are integrally formed on both sides of the interior of the rotating sleeve. The two limiting plates are respectively slidably connected to the inside of the two limiting grooves and adapted to the two limiting grooves. The limiting grooves are limited by the limiting plates, thereby driving the first threaded rod to rotate synchronously with the rotating sleeve.

[0008] Preferably, the bottom of the support arm is fixedly connected to a sliding sleeve, the inside of the sliding sleeve is slidably connected to a sliding rod, the front end of the sliding rod is fixedly connected to a connecting block, the connecting block is fixedly connected to the rear end of the bottom of the support crank arm, and the tops of the two support crank arms are fixedly connected to cover plates to limit the support crank arms and improve the stability of the support crank arms when moving.

[0009] Preferably, the movable rail is internally rotatably connected with a bidirectional screw rod, and the thread directions at both ends of the bidirectional screw rod are set to opposite directions. The two moving blocks are respectively threadedly connected to the two ends of the outer side of the bidirectional screw rod, and one end of the movable rail is fixedly connected to the second motor, and the output end of the second motor passes through the movable rail and is rotatably connected to the movable rail. The output end of the second motor is fixedly connected to the bidirectional screw rod, and the front side of the movable rail is fixedly connected with a base plate, which is arranged at the bottom of the parking front baffle and adapted to the shape of the parking front baffle. The parking front baffle is supported by the base plate, thereby improving the stability and support effect of the parking front baffle and preventing the parking front baffle from being deformed by the impact of the motorcycle tire.

[0010] Preferably, a cross arm is installed on the top of the base, one end of the top of the cross arm is hinged to the base, and the other end of the top of the cross arm is slidably connected to the base, one end of the bottom of the cross arm is hinged to the base, and the other end of the bottom of the cross arm is slidably connected to the base, and a lifting cylinder is hinged on the top of the base, and the output end of the lifting cylinder is hinged to one side of the cross arm, which is conducive to lifting the support platform.

[0011] Preferably, four lifting cylinders are fixedly connected to the bottom of the support platform, and the output ends of the lifting cylinders are fixedly connected to L-shaped plates. The four L-shaped plates are respectively fixedly connected to the two sides of the bottom of the fixing frame. Both ends of the fixing frame pass through the support platform and are slidably connected to the support platform. The lifting cylinder is activated to drive the fixing frame to rise and extend upward from the inside of the support platform to support both sides of the motorcycle shell.

[0012] Preferably, a plurality of vertical plates are fixedly connected to the top of the fixing frame, the top ends of the vertical plates are fixedly connected to the frame support plates, the first curved side plates and the second curved side plates both pass through the frame support plates and are slidably connected to the frame support plates, so that the fixing frame drives the frame support plates to rise and fall synchronously to support the bottom of the frame.

[0013] The two wheels are connected to each other with two cams, and the two wheels are connected with two cams respectively, and the two wheels are connected with two cams at the same time.

[0014] Preferably, a parking tailgate is provided on the rear side of the frame support plate, a through slot is provided inside the base, one end of the parking tailgate is hinged inside the through slot, a push rod is fixedly connected to the rear side of the fixing frame, the top end of the push rod is hinged with a piston cylinder, the piston cylinder is slidably connected with a piston plate, the top of the piston plate is fixedly connected with a round rod, the round rod passes through the top wall of the piston cylinder and is slidably connected to the piston cylinder, the top of the round rod is fixedly connected with a push block, the push block is hinged to the bottom of the parking tailgate, a plurality of through holes are provided in an annular array inside the piston plate, a buffer solution is poured inside the piston cylinder, and a spring is provided on the outside of the round rod, the two ends of the spring are respectively fitted with the piston cylinder and the push block, so that the parking tailgate is deflected upward, blocking the rear side of the front wheel to prevent wheel displacement.

[0015] Preferably, transverse grooves are provided on both sides of the base, and guide screws are rotatably connected to the two transverse grooves. Adjustment blocks are slidably connected to the two transverse grooves of the base. Two third motors are fixedly connected to the bottom of the base, and the output ends of the two third motors are respectively fixedly connected to the two guide screws. The two guide screws pass through the two adjustment blocks and are threadedly connected to the two adjustment blocks. The two adjustment blocks are respectively fixedly connected to the two sides of the bottom of the movable rail, driving the movable rail to move horizontally above the support platform.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the first threaded rod is moved, the first threaded rod drives the supporting crank arm to move forward, and the supporting crank arm drives the protective plate to move, so that the curved portion of the supporting crank arm is close to the front fender of the frame. At the same time, the first threaded rod drives the rotating plate and the coupling to rotate when the first threaded rod rotates, and the coupling drives the second threaded rod to rotate when the second threaded rod rotates, and the slider drives the push rod to move when the slider moves, and the push rod and the swing arm hinge point push the swing rod forward to deflect, so that the swing rod drives the protective frame to deflect and fit into the front fender of the frame, limiting the front fender of the frame, thereby improving the stability of the frame and adapting to the frame shapes of different models of motorcycles. When the supporting crank arm moves, it drives the protective plate to move, so that the protective plate is close to the engine position of the motorcycle for support. The protective plate and the supporting crank arm are fixed by bolts, and the protective plate of the corresponding shape can be replaced according to the model of the motorcycle.

[0018] 2. The present application causes the first arc-shaped tooth plate and the second arc-shaped tooth plate to move in opposite directions, and the first arc-shaped tooth plate and the second arc-shaped tooth plate respectively drive the first arc-shaped side plate and the second arc-shaped side plate to move, and the first arc-shaped side plate and the second arc-shaped side plate extend from the inside of the frame support plate, thereby moving the first arc-shaped side plate and the second arc-shaped side plate to both sides of the frame, limiting the frame to prevent the frame from shifting to both sides, improving the stability of the frame during lifting and lowering, and protecting the frame.

[0019] 3. The present application causes the parking tailgate to be lifted and in contact with the rear side of the front wheel, so that the parking tailgate limits the front wheel of the motorcycle and prevents the vehicle from moving backward. At the same time, if the piston cylinder continues to move after the parking tailgate contacts the wheel, the piston plate will slide inside the piston cylinder, and the buffer inside the piston cylinder will pass through the multiple through holes inside the piston plate, forming a damping effect. The parking tailgate is cushioned by the elastic force of the spring, so that the parking tailgate keeps in contact with the wheel, adapts to different tires, and can absorb part of the power when impacted by the wheel, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the cross arm of the present invention;

[0022] Figure 3 Schematic diagram of the bottom structure of the support platform of the present invention;

[0023] Figure 4 Schematic diagram of the extended structure of the frame support plate of the present invention;

[0024] Figure 5 This is a schematic structural diagram of the parking front baffle of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the fixing rod of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the rotating sleeve of the present invention;

[0027] Figure 8 This is a schematic structural diagram of the supporting crank arm of the present invention;

[0028] Figure 9 Schematic diagram of the structure of the swing rod of the present invention;

[0029] Figure 10 It is a structural schematic diagram of the frame support plate of the present invention;

[0030] Figure 11 It is a structural schematic diagram of the fixing frame of the present invention;

[0031] Figure 12This is a schematic structural diagram of the arc-shaped tooth plate of the present invention;

[0032] Figure 13 It is a structural schematic diagram of the rotating shaft of the present invention;

[0033] Figure 14 This is a schematic structural diagram of the parking tailgate of the present invention;

[0034] Figure 15 It is a structural schematic diagram of the piston plate of the present invention.

[0035] Numbers in the figure: 1, base; 2, support platform; 3, moving rail; 4, moving block; 5, fixed rod; 6, parking front baffle; 7, support arm; 8, rotating sleeve; 9, first threaded rod; 10, threaded sleeve; 11, supporting crank arm; 12, protective plate; 13, rotating plate; 14, slider; 15, coupling; 16, second threaded rod; 17, push rod; 18, rocker arm; 19, protective frame; 20, connecting block; 21, sliding rod; 22, sliding sleeve; 23, cover plate; 24, limit plate; 25, limit slot; 26, first motor; 27, fixed frame; 28, vertical plate; 29, frame support plate; 30, first curved side Plate; 31. First arc-shaped tooth plate; 32. Second arc-shaped side plate; 33. Second arc-shaped tooth plate; 34. Fixed plate; 35. Rotating shaft; 36. First guide gear; 37. Second guide gear; 38. Transmission gear; 39. Guide cylinder; 40. Articulated block; 41. L-shaped plate; 42. Lifting cylinder; 43. Push rod; 44. Piston cylinder; 45. Parking tailgate; 46. Piston plate; 47. Round rod; 48. Push block; 49. Spring; 50. Bidirectional screw; 51. Second motor; 52. Bottom plate; 53. Guide screw; 54. Adjustment block; 55. Third motor; 56. Cross arm; 57. Lifting cylinder. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0037] Example: Figures 1-15As shown, the present invention provides a technical solution for a pneumatic cross-arm type motorcycle frame lifting device, comprising a base 1, a support platform 2 is provided on the top of the base 1, a cross arm 56 is installed on the top of the base 1, one end of the top of the cross arm 56 is hinged to the base 1, the other end of the top of the cross arm 56 is slidably connected to the base 1, one end of the bottom of the cross arm 56 is hinged to the base 1, the other end of the bottom of the cross arm 56 is slidably connected to the base 1, a lifting cylinder 57 is hinged on the top of the base 1, and the output end of the lifting cylinder 57 is hinged to one side of the cross arm 56, which is conducive to lifting the support platform 2. Lifting, horizontal grooves are provided on both sides of the base 1, and guide screws 53 are rotatably connected inside the two horizontal grooves. Adjustment blocks 54 are slidably connected inside the two horizontal grooves of the base 1. Two third motors 55 are fixedly connected to the bottom of the base 1, and the output ends of the two third motors 55 are respectively fixedly connected to the two guide screws 53. The two guide screws 53 pass through the two adjustment blocks 54 and are threadedly connected to the two adjustment blocks 54. The two adjustment blocks 54 are respectively fixedly connected to both sides of the bottom of the movable rail 3, driving the movable rail 3 to move horizontally above the support platform 2.

[0038] The top of the support platform 2 is provided with a movable rail 3, and both sides of the movable rail 3 are slidably connected with a movable block 4, and the two movable blocks 4 are fixedly connected to a fixed rod 5 on the opposite side. The front sides of the two fixed rods 5 are fixedly connected to the parking front baffle 6, and the two parking front baffles 6 are arranged oppositely. The opposite sides of the two fixed rods 5 are fixedly connected to the supporting arm 7, and the supporting arm 7 is rotatably connected with a rotating sleeve 8. The rotating sleeve 8 is slidably connected with a first threaded rod 9. The rear end of the supporting arm 7 is fixedly connected to the first motor 26, and the output end of the first motor 26 is fixedly connected to the rear end of the rotating sleeve 8. The front end of the supporting arm 7 is fixedly connected with a threaded sleeve 10. The first threaded rod 9 passes through the threaded sleeve 10 and is threadedly connected to the threaded sleeve 10. Limiting grooves 25 are provided on both sides of the first threaded rod 9, and limiting plates 24 are integrally formed on both sides of the rotating sleeve 8. The two limiting plates 24 are respectively slidably connected to the inside of the two limiting grooves 25 and adapted to the two limiting grooves 25. The limiting grooves 25 are limited by the limiting plates 24, thereby driving the first threaded rod 9 to follow the rotating sleeve 8 The first threaded rod 9 is fixedly connected to the front end of the rotating plate 13, and the outer side of the rotating plate 13 is rotatably connected to the supporting crank arm 11. The rotating plate 13 is located inside the supporting crank arm 11 and is fixedly connected to the coupling 15. The front end of the coupling 15 is fixedly connected to the second threaded rod 16. The inside of the supporting crank arm 11 is slidably connected to the slider 14. The second threaded rod 16 passes through the slider 14 and is threadedly connected to the slider 14. The front end of the slider 14 is hinged with a push rod 17. The front side of the supporting crank arm 11 is hinged with a rocker arm 18. The push rod 17 is connected to the front end of the slider 14. The front end is hinged to the top of the rocker arm 18, and a protective frame 19 is fixedly connected to the front side of the rocker arm 18. The front end of the supporting curved arm 11 is fixedly connected to the protective plate 12. The bottom of the supporting arm 7 is fixedly connected to the sliding sleeve 22, and the sliding sleeve 22 is slidably connected to the sliding rod 21. The front end of the sliding rod 21 is fixedly connected to the connecting block 20, and the connecting block 20 is fixedly connected to the rear end of the bottom of the supporting curved arm 11. The tops of the two supporting curved arms 11 are fixedly connected to cover plates 23 to limit the supporting curved arms 11 and improve the stability of the supporting curved arms 11 during movement.

[0039] The movable rail 3 is internally rotatably connected with a bidirectional screw rod 50, and the thread directions at both ends of the bidirectional screw rod 50 are set to opposite directions. The two movable blocks 4 are respectively threadedly connected to the two ends of the outer side of the bidirectional screw rod 50, and one end of the movable rail 3 is fixedly connected to a second motor 51. The output end of the second motor 51 passes through the movable rail 3 and is rotatably connected to the movable rail 3. The output end of the second motor 51 is fixedly connected to the bidirectional screw rod 50. The front side of the movable rail 3 is fixedly connected with a base plate 52. The base plate 52 is set at the bottom of the parking front baffle 6 and is adapted to the shape of the parking front baffle 6. The parking front baffle 6 is supported by the base plate 52 to improve the stability and support effect of the parking front baffle 6 and prevent the parking front baffle 6 from being deformed by the impact of the motorcycle tire.

[0040] The bottom of the support platform 2 is provided with a fixed frame 27, and the first arc-shaped tooth plate 31 and the second arc-shaped tooth plate 33 are slidably connected on both sides of the interior of the fixed frame 27. The top of the first arc-shaped tooth plate 31 is fixedly connected to the first arc-shaped side plate 30, and the top of the second arc-shaped tooth plate 33 is fixedly connected to the second arc-shaped side plate 32. The bottom of the support platform 2 is fixedly connected to four lifting cylinders 42, and the output end of the lifting cylinder 42 is fixedly connected to an L-shaped plate 41. The four L-shaped plates 41 are fixedly connected to both sides of the bottom of the fixed frame 27. The two ends of the frame support plate 29 are fixedly connected to the fixed plate 34, and the two fixed plates 34 are rotatably connected to each other. The two rotating shafts 35 are respectively fixedly connected to the first guide gear 36 and the second guide gear 37. The first guide gear 36 is meshed with the first arc gear plate 31, and the second guide gear 37 is meshed with the second arc gear plate 33. The second arc gear plate 33 is staggered with the first arc gear plate 31, and one end of the two rotating shafts 35 is fixedly connected to a transmission Gear 38, two transmission gears 38 are meshed and connected, one end of the fixed frame 27 is hinged with a guide cylinder 39, the output end of the guide cylinder 39 is fixedly connected with a hinge block 40, the hinge block 40 is hinged to one side of the first arc-shaped tooth plate 31, and the first arc-shaped tooth plate 31 is pushed to slide inside the fixed frame 27 by the guide cylinder 39, and the first arc-shaped tooth plate 31 and the second arc-shaped tooth plate 33 are synchronously slid upward inside the frame support plate 29 and extended from the inside of the frame support plate 29, thereby supporting both sides of the frame.

[0041] A parking tailgate 45 is provided on the rear side of the frame support plate 29, a through groove is provided inside the base 1, one end of the parking tailgate 45 is hinged inside the through groove, and a push rod 43 is fixedly connected to the rear side of the fixing frame 27, and a piston cylinder 44 is hinged on the top of the push rod 43. A piston plate 46 is slidably connected inside the piston cylinder 44, and a round rod 47 is fixedly connected to the top of the piston plate 46. The round rod 47 passes through the top wall of the piston cylinder 44 and is slidably connected to the piston cylinder 44, and a push block 48 is fixedly connected to the top of the round rod 47. The push block 48 is hinged to the bottom of the parking tailgate 45, and a plurality of through holes are provided in an annular array inside the piston plate 46. A buffer solution is perfused inside the piston cylinder 44, and a spring 49 is provided on the outside of the round rod 47. The two ends of the spring 49 are respectively fitted with the piston cylinder 44 and the push block 48, so that the parking tailgate 45 deflects upward, blocking the rear side of the front wheel to prevent wheel displacement.

[0042] When the present invention is in use, the base 1 can be buried in the ground to lower the overall height, push the motorcycle to the top of the support platform 2, and make the front wheel close to the movable rail 3. By adjusting the front and rear positions of the movable rail 3, it is adapted to different frames. The second motor 51 is started to drive the bidirectional screw rod 50 to rotate, and the bidirectional screw rod 50 drives the two moving blocks 4 to move relative to each other, so that the two moving blocks 4 drive the two fixed rods 5 and the parking front baffle 6 to move relative to each other, so that the two parking front baffles 6 clamp the front wheel inside, thereby positioning and supporting the front wheel, preventing the vehicle from deviating and skewing, improving stability, and facilitating maintenance. The first motor 26 is started to drive the rotating sleeve 8 to rotate, and the limiting plate 24 inside the rotating sleeve 8 limits the limiting groove 25, thereby driving the first threaded rod 9 to rotate synchronously with the rotating sleeve 8. Because the first threaded rod 9 is threadedly connected to the threaded sleeve 10, the first threaded rod 9 moves under the limit of the threaded sleeve 10 when rotating, so that the first threaded rod 9 When the first threaded rod 9 rotates, the rotating plate 13 and the coupling 15 are rotated, and the coupling 15 drives the second threaded rod 16 to rotate. When the second threaded rod 16 rotates, the slider 14 slides forward inside the supporting crank arm 11, and the slider 14 pushes the push rod 17 to move when it moves, and the push rod 17 and the rocker arm 18 hinge point push the rocker arm 18 to deflect forward, so that the rocker arm 18 drives the protective frame 19 to deflect and fit the front rocker arm of the frame, limiting the front rocker arm of the frame, thereby improving the stability of the frame and adapting to the frame shape of different models of motorcycles. When the supporting crank arm 11 moves, it drives the protective plate 12 to move, so that the protective plate 12 is close to the engine position of the motorcycle for support. The protective plate 12 is fixed to the supporting crank arm 11 by bolts, and the protective plate 12 of the corresponding shape can be replaced according to the model of the motorcycle.

[0043] By starting the lifting cylinder 42, the lifting cylinder 42 drives the L-shaped plate 41 to rise, and the L-shaped plate 41 drives the fixing frame 27 to rise, and at the same time, the fixing frame 27 drives the vertical plate 28 and the frame support plate 29 to rise, so that the frame support plate 29 extends upward from the inside of the support platform 2, and the frame support plate 29 contacts the bottom of the frame, thereby supporting the frame. At the same time, the guide cylinder 39 is started, so that the output end of the guide cylinder 39 pushes the first arc-shaped toothed plate 31 to slide, so that the first arc-shaped toothed plate 31 moves inside the fixing frame 27. When the first arc-shaped toothed plate 31 moves, it drives the second guide gear 37 to rotate, and the rotation of the second guide gear 37 drives the rotating shaft 35 The first and second arcuate toothed plates 31 and 33 are respectively driven by the first and second arcuate toothed plates 31 and 33 to move, and the first and second arcuate toothed plates 31 and 33 are respectively driven by the first and second arcuate side plates 30 and 32 to move. The first and second arcuate side plates 30 and 32 extend from the inside of the frame support plate 29, thereby moving the first and second arcuate side plates 30 and 32 to both sides of the frame, limiting the frame to prevent the frame from deviating to both sides, improving the stability of the frame during lifting and lowering, and protecting the frame.

[0044] When the rear guard plate 45 is in contact with the wheel, if the piston cylinder 44 continues to move, the piston plate 46 will slide inside the piston cylinder 44, so that the buffer inside the piston cylinder 44 passes through the multiple through holes inside the piston plate 46, forming a damping effect, and cooperating with the elastic force of the spring 49 to cushion the rear guard plate 45, so that the rear guard plate 45 keeps fitting with the wheel, adapts to different tires, and can absorb part of the power when impacted by the wheel, thereby improving safety.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pneumatic cross-arm motorcycle frame lifting device, characterized by: The invention comprises a base (1), a support platform (2) is provided on the top of the base (1), a movable rail (3) is provided on the top of the support platform (2), both sides of the movable rail (3) are slidably connected to movable blocks (4), the opposite sides of the two movable blocks (4) are fixedly connected to fixed rods (5), the front sides of the two fixed rods (5) are fixedly connected to parking front baffles (6), the two parking front baffles (6) are arranged oppositely, the opposite sides of the two fixed rods (5) are fixedly connected to support arms (7), the support arms (7) are rotatably connected to rotating sleeves (8), the rotating sleeves (8) are slidably connected to a first threaded rod (9), the front end of the first threaded rod (9) is fixedly connected to a rotating plate (13), the outer side of the rotating plate (13) is rotatably connected to a supporting crank arm (11), the rotating plate (13) is located inside the supporting crank arm (11) and is fixedly connected to a coupling (15), the coupling (15) A second threaded rod (16) is fixedly connected to the front end, a slider (14) is slidably connected inside the support crank arm (11), the second threaded rod (16) passes through the slider (14) and is threadedly connected to the slider (14), a push rod (17) is hinged to the front end of the slider (14), a swing rod (18) is hinged to the front side of the support crank arm (11), the front end of the push rod (17) is hinged to the top end of the swing rod (18), a protective frame (19) is fixedly connected to the front end of the swing rod (18), a protective plate (12) is fixedly connected to the front end of the support crank arm (11), a fixing frame (27) is provided at the bottom of the support platform (2), a first arc-shaped tooth plate (31) and a second arc-shaped tooth plate (33) are slidably connected to the two sides of the fixing frame (27), the top end of the first arc-shaped tooth plate (31) is fixedly connected to the first arc-shaped side plate (30), and the top end of the second arc-shaped tooth plate (33) is fixedly connected to the second arc-shaped side plate (32).

2. The pneumatic cross-arm motorcycle frame lifting device according to claim 1, characterized in that: The rear end of the support arm (7) is fixedly connected to a first motor (26), the output end of the first motor (26) is fixedly connected to the rear end of the rotating sleeve (8), the front end of the support arm (7) is fixedly connected to a threaded sleeve (10), the first threaded rod (9) passes through the threaded sleeve (10) and is threadedly connected to the threaded sleeve (10), both sides of the first threaded rod (9) are provided with limiting grooves (25), both sides of the interior of the rotating sleeve (8) are integrally formed with limiting plates (24), and the two limiting plates (24) are respectively slidably connected to the interior of the two limiting grooves (25) and adapted to the two limiting grooves (25).

3. The pneumatic cross-arm motorcycle frame lifting device according to claim 1, characterized in that: The bottom of the support arm (7) is fixedly connected to a sliding sleeve (22), the interior of the sliding sleeve (22) is slidably connected to a sliding rod (21), the front end of the sliding rod (21) is fixedly connected to a connecting block (20), the connecting block (20) is fixedly connected to the rear end of the bottom of the support crank arm (11), and the tops of the two support crank arms (11) are fixedly connected to a cover plate (23).

4. The pneumatic cross-arm motorcycle frame lifting device according to claim 1, characterized in that: A bidirectional screw rod (50) is rotatably connected inside the movable rail (3), and the thread directions of the two ends of the bidirectional screw rod (50) are set to be opposite. The two movable blocks (4) are respectively threadedly connected to the two ends of the outer side of the bidirectional screw rod (50). One end of the movable rail (3) is fixedly connected to a second motor (51), and the output end of the second motor (51) passes through the movable rail (3) and is rotatably connected to the movable rail (3). The output end of the second motor (51) is fixedly connected to the bidirectional screw rod (50). The front side of the movable rail (3) is fixedly connected to a bottom plate (52), and the bottom plate (52) is arranged at the bottom of the parking front baffle (6) and is adapted to the shape of the parking front baffle (6).

5. The pneumatic cross-arm motorcycle frame lifting device according to claim 1, characterized in that: A cross arm (56) is installed on the top of the base (1), one end of the top of the cross arm (56) is hinged to the base (1), the other end of the top of the cross arm (56) is slidably connected to the base (1), one end of the bottom of the cross arm (56) is hinged to the base (1), the other end of the bottom of the cross arm (56) is slidably connected to the base (1), and a lifting cylinder (57) is hinged on the top of the base (1), and the output end of the lifting cylinder (57) is hinged to one side of the cross arm (56).

6. The pneumatic cross-arm motorcycle frame lifting device according to claim 1, characterized in that: Four lifting cylinders (42) are fixedly connected to the bottom of the support platform (2), and an L-shaped plate (41) is fixedly connected to the output end of the lifting cylinder (42). The four L-shaped plates (41) are respectively fixedly connected to the two sides of the bottom of the fixing frame (27). Both ends of the fixing frame (27) pass through the support platform (2) and are slidably connected to the support platform (2).

7. The pneumatic cross-arm motorcycle frame lifting device according to claim 1, characterized in that: A plurality of vertical plates (28) are fixedly connected to the top of the fixing frame (27), and a frame support plate (29) is fixedly connected to the top of the vertical plates (28). The first curved side plate (30) and the second curved side plate (32) both pass through the frame support plate (29) and are slidably connected to the frame support plate (29).

8. The pneumatic cross-arm motorcycle frame lifting device according to claim 7, characterized in that: Both ends of the bottom of the frame support plate (29) are fixedly connected to a fixed plate (34), and two rotating shafts (35) are rotatably connected between the two fixed plates (34). The two rotating shafts (35) are respectively fixedly connected to a first guide gear (36) and a second guide gear (37). The first guide gear (36) is meshed with the first arc-shaped tooth plate (31), and the second guide gear (37) is meshed with the second arc-shaped tooth plate (33). The second arc-shaped tooth plate (33) and the first arc-shaped tooth plate (31) are staggered. One end of the two rotating shafts (35) is fixedly connected to a transmission gear (38), and the two transmission gears (38) are meshed. One end of the fixed frame (27) is hinged to a guide cylinder (39), and the output end of the guide cylinder (39) is fixedly connected to a hinge block (40). The hinge block (40) is hinged to one side of the first arc-shaped tooth plate (31).

9. The pneumatic cross-arm motorcycle frame lifting device according to claim 7, characterized in that: A parking tailgate (45) is provided on the rear side of the frame support plate (29), a through slot is provided inside the base (1), one end of the parking tailgate (45) is hinged inside the through slot, a push rod (43) is fixedly connected to the rear side of the fixing frame (27), a piston cylinder (44) is hinged on the top end of the push rod (43), a piston plate (46) is slidably connected inside the piston cylinder (44), a round rod (47) is fixedly connected to the top of the piston plate (46), and the round rod (47) is passed through the fixing frame (27). The top wall of the piston cylinder (44) is passed through and is slidably connected to the piston cylinder (44). The top of the round rod (47) is fixedly connected to a push block (48). The push block (48) is hinged to the bottom of the parking tailgate (45). The interior of the piston plate (46) is provided with a plurality of through holes in an annular array. The interior of the piston cylinder (44) is filled with a buffer solution. The outside of the round rod (47) is also provided with a spring (49). The two ends of the spring (49) are respectively fitted with the piston cylinder (44) and the push block (48).

10. The pneumatic cross-arm motorcycle frame lifting device according to claim 1, characterized in that: Both sides of the base (1) are provided with transverse grooves, and guide screws (53) are rotatably connected in the two transverse grooves. Adjustment blocks (54) are slidably connected in the two transverse grooves of the base (1). Two third motors (55) are fixedly connected to the bottom of the base (1), and the output ends of the two third motors (55) are respectively fixedly connected to the two guide screws (53). The two guide screws (53) respectively pass through the two adjustment blocks (54) and are threadedly connected to the two adjustment blocks (54). The two adjustment blocks (54) are respectively fixedly connected to the two sides of the bottom of the movable rail (3).

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