A multi-functional obstacle crossing frame

Abstract

The present application relates to the field of vehicle body frame, especially to a multifunctional obstacle crossing frame, comprising a main frame body, the main frame body comprises a lower frame, the top of the lower frame is provided with an upper mounting plate, the both sides of the upper mounting plate are provided with wheel frame connecting columns at the low end surface of the side edges, the bottom of the wheel frame connecting column is fixedly connected with a wheel frame, the upper surface of the lower frame is symmetrically provided with an obstacle crossing and heightening unit, the upper surface of the lower frame is provided with a driving assembly on one side of the obstacle crossing and heightening unit, the wheel frame provided in the application can make the frame of outdoor equipment more flexible, when turning around in a narrow space, the electric wheel provided can realize turning around in place, when the obstacle universal wheel mechanism cannot pass directly, the obstacle crossing and heightening unit can effectively lift the universal wheel mechanism, so as to effectively cross the obstacle, so that the movable frame body can cross the blocked obstacle, the frame of the application can make the outdoor equipment more flexible, and can drive in more complex terrain.

Description

Technical Field

[0001] This invention relates to the field of vehicle body and frame technology, and more particularly to a multi-functional obstacle-crossing vehicle frame. Background Technology

[0002] The chassis is a frame structure spanning the front and rear axles of a vehicle, commonly known as a beam, and is the base of the vehicle. It typically consists of two longitudinal beams and several crossbeams, supported on the wheels via the suspension system, front axle, and rear axle. The main function of the chassis is to support and connect the various assemblies of the vehicle, maintain their correct relative positions, and withstand various loads from inside and outside the vehicle.

[0003] Some existing vehicle frames have relatively simple structures. When encountering obstacles on the road, the wheels of some frames are too low, making it impossible to directly traverse obstacles. Furthermore, some vehicle frames require a significant amount of space to turn around, which can be difficult in confined spaces, limiting their range of motion when riding outdoors. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-functional obstacle-crossing vehicle frame.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-functional obstacle-crossing vehicle frame includes a main frame, the main frame includes a lower frame, an upper mounting plate is provided on the top of the lower frame, wheel frame connecting columns are provided on the lower surface of both sides of the upper mounting plate, wheel frames are fixedly connected to the bottom of the wheel frame connecting columns, obstacle-crossing height-increasing units are symmetrically arranged on the upper surface of the lower frame, and drive components are provided on one side of the obstacle-crossing height-increasing units on the upper surface of the lower frame.

[0007] The obstacle-crossing and height-increasing unit includes a push frame, a drive mechanism connected to one side of the push frame, and a limit mechanism on the other side of the push frame away from the drive mechanism. The limit mechanism is installed on the lower surface of the upper mounting plate, and a support leg is rotatably fitted on the limit mechanism. A support wheel limit unit is installed on one side of the support leg frame, and a support wheel mechanism is rotatably fitted on the bottom of the side surface on which the support wheel limit unit is installed.

[0008] In addition, a preferred structure is that a cable routing port is provided through one side of the drive assembly on the lower frame, an movable opening is provided through one side of the cable routing port on the lower frame, and a plurality of connecting posts for connecting the upper mounting plate are provided on the top surface of the lower frame.

[0009] A pushing mechanism is provided on the lower surface above the movable opening of the upper mounting plate.

[0010] In addition, a preferred structure is that the wheel frame includes a connecting frame body, which is fixedly connected to the bottom of the wheel frame connecting column. A connecting plate is provided at both ends of the connecting frame body. A first rotating seat is installed at the bottom of the connecting plate on one side, and a movable frame body is installed at the bottom of the connecting plate on the other side.

[0011] The bottom of the connecting plate is equipped with a first rotating seat and a universal wheel mechanism. The top of the middle section of the movable frame is provided with a first rotating rod and a second rotating seat is rotatably fitted on the first rotating rod. The second rotating seat is installed at the bottom of the connecting plate. A second connecting seat is provided at one end of the movable frame and a first connecting seat is provided at the other end of the movable frame.

[0012] An electric wheel is rotatably mounted on the second connecting seat, and the electric wheel is electrically connected to the drive assembly. A first rotating seat is mounted on the bottom of the first connecting seat, and a universal wheel mechanism is rotatably mounted on the bottom of the first rotating seat of the first connecting seat.

[0013] Furthermore, in a preferred configuration, the caster mechanism includes a triangular mounting plate, with symmetrically arranged rotating connectors on the top surface of the triangular mounting plate for rotating engagement with the first rotating seat, and multiple casters evenly arranged on the bottom of the triangular mounting plate.

[0014] Furthermore, in a preferred configuration, the pushing mechanism includes a first servo cylinder, the top of which is mounted on the lower surface of the upper mounting plate, and a connecting plate is mounted on the lower end of the piston rod at the bottom output end of the first servo cylinder. A push plate is fixedly connected to one side of the connecting plate, and the push plate is located above the movable frame.

[0015] Furthermore, in a preferred configuration, the drive mechanism includes a second servo electric cylinder, which is mounted on the top surface of the lower frame. A piston rod is provided at the output end of the second servo electric cylinder, and a connecting frame is installed at the end of the piston rod.

[0016] A limit block is provided at the end of the piston rod, and a screw hole for installing a fixing component is provided on the limit block. A first mounting port for installing the limit block is provided through the middle of one side plate of the connecting frame. A first through hole for installing the push frame is symmetrically provided on the other side plate of the connecting frame away from the first mounting port.

[0017] The push frame includes an L-shaped connecting plate, which is symmetrically installed on the plate surface of the connecting frame located at the first through hole;

[0018] The L-shaped connecting plate has a second mounting port through one end and a second through hole coaxial with the first through hole symmetrically opened on the other end plate.

[0019] Push rods are installed at the second mounting ports on both sides, and fixing components are installed at the ends of the push rods on both sides.

[0020] Furthermore, in a preferred configuration, the limiting mechanism includes a limiting plate, which is symmetrically mounted on the lower surface of the upper mounting plate. A limiting mechanism upper mounting plate for mounting on the bottom of the upper mounting plate is horizontally provided on the top of the limiting plate. A first pushing rod movable groove for the lateral movement of the pushing rod is provided through the limiting plate. Limiting abutments for abutting the support leg are provided on the side surface of the limiting plate facing the other limiting plate.

[0021] The top of the limiting plate has a first rotating hole, and second rotating rods are installed at the first rotating holes on both sides. The support bracket is rotatably engaged with the second rotating rods.

[0022] In addition, a preferred structure is that the top of the support leg is provided with a second rotating hole for the second rotating rod to rotate and engage, the support leg is provided with a second pushing rod moving groove on one side of the second rotating hole for the pushing rod to move, and reinforcing plates are symmetrically arranged at the inner corner of the support leg;

[0023] The inner surface of the support leg is symmetrically provided with first mounting holes for installing the support wheel limiting unit. The support leg is provided with a rotating groove on one side of the first mounting hole. A third rotating rod is provided in the rotating groove. The support wheel mechanism is rotatably fitted on the third rotating rod. A limiting baffle is provided on the outer surface of the support leg on one side of the rotating groove.

[0024] Furthermore, in a preferred configuration, the support wheel limiting unit includes a limiting wheel mounting plate, which is installed at the first mounting hole. The bottom of the limiting wheel mounting plate is slidably fitted with a limiting wheel mechanism. A second mounting hole coaxial with the first mounting hole is symmetrically opened on the top plate of the limiting wheel mounting plate. A first sliding hole is opened in the middle of the bottom plate of the limiting wheel mounting plate, and second sliding holes are symmetrically opened on both sides of the first sliding hole.

[0025] The limiting wheel mechanism includes a wheel seat, on which a pulley is rotatably fitted. A first slide rod is vertically arranged at the center of the top surface of the wheel seat and slidably fitted at the first slide hole. Second slide rods are symmetrically arranged vertically on both sides of the first slide rod and slidably fitted at the second slide holes. A spring is sleeved on the outside of the first slide rod.

[0026] One end of the spring is fixedly connected to the top surface of the wheel seat, and the other end of the spring is fixedly connected to the bottom surface of the bottom plate of the limit wheel mounting plate.

[0027] In addition, a preferred structure is that the support wheel mechanism includes a support wheel connecting frame, the support wheel connecting frame is slidably fitted on the third rotating rod, support wheels are rotatably connected to both sides of the top of the support wheel connecting frame, and a limit protrusion is provided on the other side surface of the support wheel connecting frame away from the support leg.

[0028] The top of the support wheel connecting frame has a third rotating hole.

[0029] The beneficial effects of this invention are as follows: the wheel frame provided in this invention makes the frame of the outdoor equipment more flexible, and when turning around in a narrow space, the electric wheels can turn around on the spot. When the universal wheel mechanism cannot pass directly through an obstacle, the obstacle-crossing heightening unit can effectively lift the universal wheel mechanism, thereby effectively crossing the obstacle. This allows the mobile frame to overcome the obstructing obstacles. The frame of this invention makes the outdoor equipment more flexible and can travel in more complex terrains. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 b is a schematic diagram of the overall structure of the present invention;

[0032] Figure 3 A schematic diagram of the main frame after disassembly;

[0033] Figure 4 This is a structural diagram of the upper mounting plate;

[0034] Figure 5 This is a structural diagram of the lower frame;

[0035] Figure 6 This is a schematic diagram of the wheel frame structure;

[0036] Figure 7 This is a schematic diagram of the disassembled wheel frame.

[0037] Figure 8 Here is a schematic diagram A of the universal wheel mechanism;

[0038] Figure 9 Here is a structural schematic diagram B of the caster wheel mechanism;

[0039] Figure 10 This is a schematic diagram of the disassembled movable frame.

[0040] Figure 11 A schematic diagram of the main frame without connected wheel frames;

[0041] Figure 12 A schematic diagram illustrating the structure after the organizational restructuring;

[0042] Figure 13 This is a schematic diagram of the structure after the obstacle-crossing height-increasing unit has been disassembled;

[0043] Figure 14 This is a schematic diagram of the limiting mechanism;

[0044] Figure 15 This is a schematic diagram of the limiting plate.

[0045] Figure 16 This is a schematic diagram of the structure after the drive mechanism and the push frame are separated.

[0046] Figure 17 This is a structural diagram of an L-shaped connecting plate;

[0047] Figure 18 This is a schematic diagram of the structure after the second servo electric cylinder and the connecting frame have been separated.

[0048] Figure 19 A schematic diagram of the structure assembled together with the support frame, support wheel limiting unit, and support wheel mechanism;

[0049] Figure 20 This is a structural diagram showing the disassembled support frame, support wheel limiting unit, and support wheel mechanism.

[0050] Figure 21 A structural diagram of the supporting frame;

[0051] Figure 22 A schematic diagram of a portion of the supporting frame;

[0052] Figure 23 This is a structural diagram of the support wheel mechanism;

[0053] Figure 24 This is a schematic diagram of the structure after the support wheel limiting unit has been disassembled;

[0054] Figure 25 This is a structural diagram of the limit wheel mounting plate;

[0055] Figure 26 This is a schematic diagram of the limit wheel mechanism.

[0056] In the diagram: 01. Main frame; 011. Upper mounting plate; 0111. Wheel frame connecting column; 012. Lower frame; 0121. Cable routing port; 0122. Movable port; 0123. Connecting column; 02. Wheel frame; 021. Connecting frame; 0211. Connecting plate; 022. Movable frame; 0221. First rotating rod; 0222. First connecting seat; 0223. Second connecting seat; 023. First rotating seat; 024. Second rotating seat; 03. Obstacle-crossing height-increasing unit; 1. Electric wheel; 2. Universal wheel mechanism; 21. Triangular mounting plate; 22. Rotating connector; 23. Universal wheel; 3. Drive assembly; 4. Pushing mechanism; 41. First servo electric cylinder; 42. Connecting plate; 43. Push plate; 5. Drive mechanism; 51. Second servo electric cylinder; 52. Piston rod; 521. Limiting block; 53. Connecting frame; 531. First mounting port; 532. First through hole; 6. Push frame; 61. L-shaped connecting plate; 611. Second through hole; 612. Second mounting port; 62. Push rod; 63. Fixing component; 7. Limiting mechanism; 71. Limiting plate; 711. First push rod movable groove; 712. Limiting stop plate; 713. First rotating hole; 714. Upper mounting plate of the limiting mechanism; 72. Second rotating rod; 8. Support leg; 81. Second push rod movable groove; 82. Second rotating hole; 83. Reinforcing plate; 84. First mounting hole; 85. Rotating groove; 86. 87. Third rotating rod; 9. Limiting baffle; 10. Support wheel limiting unit; 11. Limiting wheel mounting plate; 12. Second mounting hole; 13. First sliding hole; 14. Second sliding hole; 15. Limiting wheel mechanism; 16. Wheel seat; 17. Pulley; 18. First sliding rod; 19. Second sliding rod; 20. Spring; 21. Support wheel mechanism; 22. Support wheel connecting frame; 23. Third rotating hole; 24. Limiting protrusion; 25. Support wheel. Detailed Implementation

[0057] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0058] Reference Figure 1-26A multi-functional obstacle-crossing vehicle frame includes a main frame 01, which includes a lower frame 012. An upper mounting plate 011 is provided on the top of the lower frame 012. Wheel frame connecting columns 0111 are provided on the lower surfaces of both sides of the upper mounting plate 011. Wheel frames 02 are fixedly connected to the bottom of the wheel frame connecting columns 0111. Obstacle-crossing height-enhancing units 03 are symmetrically arranged on the upper surface of the lower frame 012. Drive components 3 are provided on one side of each obstacle-crossing height-enhancing unit 03 on the upper surface of the lower frame 012. Each obstacle-crossing height-enhancing unit 03 includes a push frame 6, with one side of the push frame 6 connected to... A drive mechanism 5 is provided, and a limit mechanism 7 is provided on the other side of the push frame 6 away from the drive mechanism 5. The limit mechanism 7 is installed on the lower surface of the upper mounting plate 011. A support leg 8 is rotatably fitted on the limit mechanism 7. A support wheel limit unit 9 is installed on one side surface of the support leg 8. A support wheel mechanism 10 is rotatably fitted on the bottom of the side surface of the support leg 8 where the support wheel limit unit 9 is installed. The obstacle crossing and height increasing unit 03 can lift the front side of the main frame 01, thereby lifting the movable frame 022, so that the universal wheel mechanism 2 can be lifted above the obstacle.

[0059] In addition, a cable routing port 0121 is provided on one side of the drive assembly 3 on the lower frame 012, and a movable port 0122 is provided on one side of the cable routing port 0121 on the lower frame 012. Multiple connecting posts 0123 for connecting the upper mounting plate 011 are provided on the top surface of the lower frame 012. A pushing mechanism 4 is provided on the lower surface above the movable port 0122 of the upper mounting plate 011. The movable port 0122 facilitates the movement of the pushing mechanism 4.

[0060] The wheel frame 02 includes a connecting frame 021, which is fixedly connected to the bottom of the wheel frame connecting column 0111. Connecting plates 0211 are provided at both ends of the connecting frame 021. A first rotating seat 023 is installed at the bottom of one connecting plate 0211, and a movable frame 022 is installed at the bottom of the other connecting plate 0211. The bottom of the first rotating seat 023 installed at the bottom of the connecting plate 0211 is rotatably engaged with a universal wheel mechanism 2. A first rotating rod 0221 is provided at the top of the middle section of the movable frame 022. A second rotating seat 024 is rotatably engaged on the first rotating rod 0221. The second rotating seat 024 is installed at the bottom of the connecting plate 0211. A second connecting seat 0223 is provided at one end of the movable frame 022, and a first connecting seat 0222 is provided at the other end of the movable frame 022. The first connecting seat 0222 is used to connect the two mechanisms.

[0061] Furthermore, an electric wheel 1 is rotatably mounted on the second connecting seat 0223. The electric wheel 1 is electrically connected to the drive assembly 3. A first rotating seat 023 is mounted on the bottom of the first connecting seat 0222. A universal wheel mechanism 2 is rotatably mounted on the bottom of the first rotating seat 023 of the first connecting seat 0222. The electric wheel 1 is a wheel driven by an internal hub motor, which enables the electric wheels 1 on both sides to rotate in different directions.

[0062] In addition, the caster mechanism 2 includes a triangular mounting plate 21. A rotating connector 22 for rotating engagement with the first rotating seat 023 is symmetrically arranged on the top surface of the triangular mounting plate 21. Multiple casters 23 are evenly arranged at the bottom of the triangular mounting plate 21, and the casters 23 enable the frame to rotate more flexibly.

[0063] Meanwhile, the pushing mechanism 4 includes a first servo cylinder 41. The top of the first servo cylinder 41 is mounted on the lower surface of the upper mounting plate 011. A connecting plate 42 is mounted on the lower end of the piston rod at the bottom output end of the first servo cylinder 41. A push plate 43 is fixedly connected to one side of the connecting plate 42. The push plate 43 is located above the movable frame 022 and is used to abut against the movable frame 022.

[0064] The drive mechanism 5 includes a second servo cylinder 51, which is installed on the top surface of the lower frame 012. A piston rod 52 is provided at the output end of the second servo cylinder 51, and a connecting frame 53 is installed at the end of the piston rod 52. A limit block 521 is provided at the end of the piston rod 52, and a screw hole for installing a fixing component is provided on the limit block 521. A first mounting port 531 for installing the limit block 521 is provided through the middle of one side plate of the connecting frame 53. A first through hole 532 for installing the push frame 6 is symmetrically provided on the other side plate of the connecting frame 53 away from the first mounting port 531. The piston rod 52 is used to pull the connecting frame 53.

[0065] In addition, the push frame 6 includes an L-shaped connecting plate 61, which is symmetrically installed on the plate surface of the connecting frame 53 located at the first through hole 532. A second mounting port 612 is provided through one end of the L-shaped connecting plate 61, and a second through hole 611 coaxial with the first through hole 532 is provided on the plate body of the other end. Push rods 62 are installed at the second mounting ports 612 on both sides, and fixing components 63 are installed at the ends of the push rods 62. The push rods 62 are used to pull the support leg 8 to rotate.

[0066] The limiting mechanism 7 includes a limiting plate 71, which is symmetrically installed on the lower surface of the upper mounting plate 011. The top of the limiting plate 71 is horizontally provided with a limiting mechanism upper mounting plate 714 for installation at the bottom of the upper mounting plate 011. The limiting plate 71 has a first push rod movable groove 711 for the lateral movement of the push rod 62. The limiting plate 71 has a limiting abutment plate 712 for abutting against the support leg 8 on one side of the limiting plate 71 facing the other side. The top of the limiting plate 71 has a first rotating hole 713, and second rotating rods 72 are installed at the first rotating holes 713 on both sides. The support leg 8 is rotatably engaged with the second rotating rods 72. The limiting mechanism 7 is used to limit the range of rotation of the support leg 8.

[0067] Meanwhile, the top of the support leg 8 is provided with a second rotating hole 82 for the second rotating rod 72 to rotate and engage. The support leg 8 is provided with a second pushing rod movement groove 81 on one side of the second rotating hole 82 for the pushing rod 62 to move. Reinforcing plates 83 are symmetrically arranged at the inner corner of the support leg 8. The inner surface of the support leg 8 is provided with a first mounting hole 84 for installing the support wheel limiting unit 9. The support leg 8 is provided with a rotating groove 85 on one side of the first mounting hole 84. A third rotating rod 86 is provided in the rotating groove 85. The support wheel mechanism 10 is rotatably engaged on the third rotating rod 86. A limiting baffle 87 is provided on the outer surface of the support leg 8 on one side of the rotating groove 85. The rotating groove 85 is used to realize the rotation of the support wheel mechanism 10.

[0068] Furthermore, the support wheel limiting unit 9 includes a limiting wheel mounting plate 91, which is installed at the first mounting hole 84. A limiting wheel mechanism 92 slides along the bottom of the limiting wheel mounting plate 91. A second mounting hole 911, coaxial with the first mounting hole 84, is symmetrically provided on the top plate of the limiting wheel mounting plate 91. A first sliding hole 912 is provided in the middle of the bottom plate of the limiting wheel mounting plate 91, and second sliding holes 913 are symmetrically provided on both sides of the first sliding hole 912. The limiting wheel mechanism 92 includes a wheel seat 921. A pulley 922 is rotatably fitted. A first slide rod 923 is vertically arranged at the center of the top surface of the wheel seat 921 and is slidably fitted at the first slide hole 912. A second slide rod 924 is symmetrically arranged on both sides of the first slide rod 923 and is slidably fitted at the second slide hole 913. A spring 93 is sleeved on the outside of the first slide rod 923. One end of the spring 93 is fixedly connected to the top surface of the wheel seat 921, and the other end of the spring 93 is fixedly connected to the bottom surface of the bottom plate of the limit wheel mounting plate 91. The spring 93 is used to reset the limit wheel mechanism 92.

[0069] Meanwhile, the support wheel mechanism 10 includes a support wheel connecting frame 101, which is slidably fitted on the third rotating rod 86. Support wheels 103 are rotatably connected to both sides of the top of the support wheel connecting frame 101. A limiting protrusion 102 is provided on the other side of the support wheel connecting frame 101 away from the support leg 8. A third rotating hole 1011 is opened on the top of the support wheel connecting frame 101. The limiting protrusion 102 is hemispherical and can be blocked by the support wheel limiting unit 9.

[0070] In this embodiment, the vehicle frame of the present invention can be used in outdoor work and surveying environments. When the vehicle frame moves forward or backward, the operator controls the electric wheels 1 through the drive component 3. The drive component 3 is used for control and power supply. When moving forward or backward in a straight line, the electric wheels 1 on both sides can be controlled to rotate synchronously. When turning, the electric wheels 1 can turn in place by relying on the internal hub motor. It is only necessary to control the electric wheels 1 on both sides to rotate in opposite directions. This makes it easy for the vehicle frame of the present invention to complete the turning operation in a small and effective space.

[0071] Furthermore, during the vehicle's movement, the three universal wheels 23 of the universal wheel mechanism 2 achieve a larger contact area, making the vehicle's movement more stable and the steering of the three universal wheels 23 more flexible.

[0072] When the vehicle encounters obstacles with high road heights during its journey, the hub motor of the electric wheel 1 is not powerful enough to drive the front universal wheel mechanism 2 directly over the obstacle. In this case, it is necessary to control the obstacle-crossing height-increasing unit 03 to lift the movable frame 022.

[0073] When the obstacle-crossing height-increasing unit 03 is not in contact with the ground, the height of the support wheel mechanism 10 is higher than that of the universal wheel mechanism 2. When it is necessary to support the movable frame 022, the drive mechanisms 5 on both sides are controlled to pull the support legs 8 synchronously, and the second servo electric cylinder 51 is controlled to drive the piston rod 52 to retract. The piston rod 52 pulls the connecting frame 53, thereby realizing that the connecting frame 53 pulls the push frame 6 on one side. When the push frame 6 moves, the push rod 62 will move laterally at the first push rod movement groove 711. When the movable groove 711 moves laterally toward the main frame 01, because the push rod 62 is also in the second push rod movable groove 81, when the push rod 62 moves, the support leg 8 rotates around the second rotating rod 72 as the axis. Under the restriction of the first push rod movable groove 711, the push rod 62 is always moved in a horizontal straight line. When the push rod 62 moves in a horizontal straight line, the push rod 62 will drive the support leg 8 to rotate counterclockwise around the second rotating rod 72 as the axis, so that the height of its support wheel mechanism 10 can slowly decrease.

[0074] As the support wheel mechanism 10 descends, its height gradually decreases below that of the universal wheel mechanism 2. Once it falls below the height of the universal wheel mechanism 2, the support wheel mechanism 10 contacts the ground and, in conjunction with the connecting frame 021, enables the main frame 01 to be supported by the support legs 8 and the universal wheel mechanism 2 at the bottom of the connecting frame 021. Meanwhile, as the support legs 8 gradually lift the main frame 01, the movable frame 022 will rise, and the height of the universal wheel mechanism 2 at the bottom of the movable frame 022 will increase.

[0075] Furthermore, due to the angular relationship between the support wheel mechanism 10 and the support leg 8, the support wheel mechanism 10, when landing, works with the support wheel limiting unit 9 to prevent it from rotating and retracting.

[0076] After the movable frame 022 is raised, the operator controls the pushing mechanism 4. Because the movable frame 022 is raised, the electric wheel 1 is suspended in the air. In order to ensure that the electric wheel 1 can provide power, the operator controls the pushing mechanism 4 to press the electric wheel 1 down. The first servo cylinder 41 pushes its piston rod downward, driving the connecting plate 42 and the push plate 43 on one side to press the movable frame 022 down. The movable frame 022 is rotated on the first rotating rod 0221 and engaged with the second rotating seat 024. When the push plate 43 presses the movable frame 022 down, the movable frame 022 can rotate around the first rotating rod 0221 as the axis, so that the universal wheel mechanism 2 on one side is raised, while the electric wheel 1 is pressed down to contact the ground, which can provide forward power.

[0077] After the electric wheel 1 contacts the ground, it can be controlled to drive the main frame 01 forward. At this time, the omnidirectional wheel mechanism 2 raised at the front will pass over the obstacle and be positioned above the higher ground. Then, the drive mechanism 5 will be controlled to extend the piston rod 52, thereby raising and retracting the support leg 8. The omnidirectional wheel mechanism 2 raised at the front will be placed on the higher ground. When the support leg 8 is raised and retracted, if the support wheel mechanism 10 comes into contact with an obstacle, the support wheel mechanism 10 will be restricted by the obstacle. When the support leg 8 rotates, the support wheel connecting frame 101 of the support wheel mechanism 10 will rotate with the third rotating rod 86, thereby realizing the rotation and retraction of the support wheel mechanism 10 as a whole. This ensures that the support wheel mechanism 10 will not be affected by obstacles during the raising of the support leg 8, preventing the support leg 8 from being unable to retract.

[0078] Furthermore, when the support wheel mechanism 10 is not restricted by any obstacle, the support wheel limiting unit 9 will push the support wheel mechanism 10 to reset. At this time, the spring 93 on the first slide rod 923 is compressed by external force and becomes contracted. Without external force restriction, the spring 93 releases elastic potential energy, thereby driving the first slide rod 923 to move at the first slide hole 912. The second slide rods 924 on both sides ensure that the wheel seat 921 always moves in a straight line. When the wheel seat 921 moves in a straight line, the pulley 922 will push the hemispherical limiting protrusion 102, thereby pushing the support wheel mechanism 10 to rotate and reset.

[0079] After the support frame 8 retracts and lifts, the raised caster mechanism 2 will be on a higher ground. Since one caster mechanism 2 is already on a higher ground, the operator can easily pass the obstacle by controlling the electric wheel 1 to move forward. The last caster mechanism 2 can pass even more easily because the front movable frame 022 is already on a higher ground.

[0080] In this invention, the wheel frame 02 enables the outdoor equipment frame to be more flexible. When turning around in a narrow space, the electric wheel 1 can turn around on the spot. When the universal wheel mechanism 2 cannot pass directly due to an obstacle, the obstacle-crossing lifting unit 03 can effectively lift the universal wheel mechanism 2, thereby effectively crossing the obstacle. This allows the movable frame 022 to overcome the obstructing obstacles. The frame of this invention enables the outdoor equipment to be more flexible and to travel in more complex terrains.

[0081] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-functional obstacle-crossing vehicle frame, comprising a main frame (01), characterized in that, The main frame (01) includes a lower frame (012), an upper mounting plate (011) is provided on the top of the lower frame (012), wheel frame connecting columns (0111) are provided on the lower surface of both sides of the upper mounting plate (011), wheel frames (02) are fixedly connected to the bottom of the wheel frame connecting columns (0111), obstacle crossing and height enhancement units (03) are symmetrically provided on the upper surface of the lower frame (012), and drive components (3) are provided on one side of the obstacle crossing and height enhancement unit (03) on the upper surface of the lower frame (012). The obstacle-crossing height-increasing unit (03) includes a push frame (6), a drive mechanism (5) is connected to one side of the push frame (6), and a limit mechanism (7) is provided on the other side of the push frame (6) away from the drive mechanism (5). The limit mechanism (7) is installed on the lower surface of the upper mounting plate (011), and a support leg (8) is rotatably fitted on the limit mechanism (7). A support wheel limit unit (9) is installed on one side surface of the support leg (8), and a support wheel mechanism (10) is rotatably fitted at the bottom of the side surface of the support leg (8) where the support wheel limit unit (9) is installed. The wheel frame (02) includes a connecting frame (021), which is fixedly connected to the bottom of the wheel frame connecting column (0111). A connecting plate (0211) is provided at both ends of the connecting frame (021). A first rotating seat (023) is installed at the bottom of one connecting plate (0211), and a movable frame (022) is installed at the bottom of the other connecting plate (0211). The bottom of the connecting plate (0211) is equipped with a first rotating seat (023) with a universal wheel mechanism (2). The top of the middle section of the movable frame (022) is provided with a first rotating rod (0221). The first rotating rod (0221) is rotatably equipped with a second rotating seat (024). The second rotating seat (024) is installed at the bottom of the connecting plate (0211). The movable frame (0222) is provided with a second connecting seat (0223) on one side end and a first connecting seat (0222) on the other side end. An electric wheel (1) is rotatably mounted on the second connecting seat (0223). The electric wheel (1) is electrically connected to the drive assembly (3). A first rotating seat (023) is mounted on the bottom of the first connecting seat (0222). A universal wheel mechanism (2) is rotatably mounted on the bottom of the first rotating seat (023) of the first connecting seat (0222). The lower frame (012) has a through-hole (0121) on one side of the drive assembly (3), and a movable opening (0122) is provided on one side of the through-hole (0121) on the lower frame (012). A pushing mechanism (4) is provided on the lower surface above the movable opening (0122) of the upper mounting plate (011). The pushing mechanism (4) is used to push the movable frame (022). The limiting mechanism (7) includes a limiting plate (71), which is symmetrically installed on the lower surface of the upper mounting plate (011). The top of the limiting plate (71) is horizontally provided with a limiting mechanism upper mounting plate (714) for installation at the bottom of the upper mounting plate (011). A pushing rod (62) is provided on the other side of the pushing frame (6) away from the driving mechanism (5). A first pushing rod movable groove (711) for the lateral movement of the pushing rod (62) is provided on the limiting plate (71). A limiting abutment plate (712) for abutting the support leg (8) is provided on the side surface of the limiting plate (71) facing the other limiting plate (71). The top of the limiting plate (71) is provided with a first rotating hole (713), and a second rotating rod (72) is installed at the first rotating hole (713) on both sides. The support bracket (8) is rotatably engaged at the second rotating rod (72). The top of the support leg (8) is provided with a second rotating hole (82) for the second rotating rod (72) to rotate and engage, and the support leg (8) is provided with a second push rod movement groove (81) on one side of the second rotating hole (82) for the push rod (62) to move. The inner surface of the support leg (8) is symmetrically provided with first mounting holes (84) for installing the support wheel limiting unit (9). The support leg (8) is provided with a rotating groove (85) on one side of the first mounting hole (84). A third rotating rod (86) is provided in the rotating groove (85). The support wheel mechanism (10) is rotatably fitted on the third rotating rod (86). A limiting baffle (87) is provided on the outer surface of the support leg (8) on one side of the rotating groove (85). The support wheel mechanism (10) includes a support wheel connecting frame (101), which is rotatably fitted on a third rotating rod (86). A third rotating hole (1011) is provided on the top of the support wheel connecting frame (101), and support wheels (103) are rotatably connected to both sides of the bottom of the support wheel connecting frame (101). A limit protrusion (102) is provided on the other side of the support wheel connecting frame (101) away from the support leg (8).

2. The multi-functional obstacle-crossing vehicle frame according to claim 1, characterized in that, The top surface of the lower frame (012) is provided with a plurality of connecting posts (0123) for connecting the upper mounting plate (011).

3. The multi-functional obstacle-crossing vehicle frame according to claim 1, characterized in that, The universal wheel mechanism (2) includes a triangular mounting plate (21), and a rotating connector (22) for rotating and engaging with the first rotating seat (023) is symmetrically arranged on the top surface of the triangular mounting plate (21). Multiple universal wheels (23) are evenly arranged on the bottom of the triangular mounting plate (21).

4. The multi-functional obstacle-crossing vehicle frame according to claim 1, characterized in that, The pushing mechanism (4) includes a first servo cylinder (41). The top of the first servo cylinder (41) is mounted on the lower surface of the upper mounting plate (011). A connecting plate (42) is mounted on the lower end of the piston rod at the bottom output end of the first servo cylinder (41). A push plate (43) is fixedly connected to one side of the connecting plate (42). The push plate (43) is located above the movable frame (022).

5. A multi-functional obstacle-crossing vehicle frame according to claim 1, characterized in that, The drive mechanism (5) includes a second servo cylinder (51), which is installed on the top surface of the lower frame (012). A piston rod (52) is provided at the output end of the second servo cylinder (51), and a connecting frame (53) is installed at the end of the piston rod (52). A limiting block (521) is provided at the end of the piston rod (52). The limiting block (521) has a screw hole for installing a fixing component. A first mounting port (531) for installing the limiting block (521) is provided in the middle of one side plate of the connecting frame (53). A first through hole (532) for installing the pusher frame (6) is symmetrically provided on the other side plate of the connecting frame (53) away from the first mounting port (531). The push frame (6) includes an L-shaped connecting plate (61), which is symmetrically installed on the plate surface of the connecting frame (53) located in the first through hole (532); The L-shaped connecting plate (61) has a second mounting port (612) through one end and a second through hole (611) coaxial with the first through hole (532) symmetrically opened on the plate body of the other end. Push rods (62) are installed at the second mounting ports (612) on both sides, and fixing parts (63) are installed at the ends of the push rods (62).

6. A multi-functional obstacle-crossing vehicle frame according to claim 1, characterized in that, The inner corner of the support leg (8) is symmetrically provided with reinforcing plates (83).

7. A multi-functional obstacle-crossing vehicle frame according to claim 1, characterized in that, The support wheel limiting unit (9) includes a limiting wheel mounting plate (91), which is installed at the first mounting hole (84). The bottom of the limiting wheel mounting plate (91) is slidably fitted with a limiting wheel mechanism (92). The top plate of the limiting wheel mounting plate (91) is symmetrically provided with a second mounting hole (911) coaxial with the first mounting hole (84). The bottom plate of the limiting wheel mounting plate (91) is provided with a first sliding hole (912) in the middle. The second sliding holes (913) are symmetrically provided on both sides of the first sliding hole (912). The limiting wheel mechanism (92) includes a wheel seat (921), a pulley (922) is rotatably fitted on the wheel seat (921), a first slide rod (923) is vertically arranged at the middle of the top surface of the wheel seat (921) and slidably fitted at the first slide hole (912), and second slide rods (924) are symmetrically arranged vertically on both sides of the first slide rod (923) and slidably fitted at the second slide hole (913), and a spring (93) is sleeved on the outside of the first slide rod (923); One end of the spring (93) is fixedly connected to the top surface of the wheel seat (921), and the other end of the spring (93) is fixedly connected to the bottom surface of the bottom plate of the limiting wheel mounting plate (91).

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