Supporting leg and vehicle with same

Abstract

The utility model provides a supporting leg and a vehicle with the supporting leg, and belongs to the technical field of supporting legs for vehicle supporting, the supporting leg comprises an oil cylinder body, a support foot and a fixing sleeve, and the oil cylinder body comprises a cylinder barrel and a piston rod; the top end of the fixing sleeve is provided with an inner edge, the piston rod is provided with a limiting groove with the height larger than that of the inner edge, and the inner edge is arranged in the limiting groove. The fixed sleeve and the piston rod are respectively provided with a first distance sensor and a detection piece; when the supporting legs are stressed, the inner edges abut against the bottom sides of the limiting grooves. When the supporting legs are not stressed, the inner edges abut against the top sides of the limiting grooves. The first distance sensor can feed back the two states so as to feed back the supporting state of the supporting legs; the fixed sleeve detects whether the cylinder barrel is in place or not through a second distance sensor to feed back whether the supporting leg is retracted in place or not; the bottom end of the fixed sleeve can realize inclination angle adjustment after the supporting legs are retracted through an adjusting baffle; the supporting legs can be additionally arranged at different positions of the vehicle through the fixing flanges, and the number and positions of vehicle supporting points can be conveniently adjusted.

Description

Technical Field

[0001] The present application belongs to the technical field of legs for supporting vehicles, and more specifically, relates to a leg and a vehicle having the leg. Background Art

[0002] Aerial work vehicles, such as aerial fire trucks or engineering vehicles for aerial work, need to support the vehicle body with outriggers to prevent the vehicle from tipping over due to an excessively high center of gravity.

[0003] Existing outriggers typically use a vehicle-mounted hydraulic cylinder as the main support component. For example, utility model patent publication number CN219366468U discloses an outrigger hydraulic cylinder for aerial work platforms. When the outrigger is supported on the ground, the hydraulic cylinder is stressed. When the outrigger is not in contact with the ground, the hydraulic cylinder is unstressed. Whether the hydraulic cylinder is stressed can be used to determine the outrigger's support status and, therefore, the vehicle's support effectiveness.

[0004] There are still certain deficiencies in the use of existing outriggers. First, in some complex terrain situations, it may be difficult to judge the support status of the outriggers by observation due to line of sight obstruction, and it is not convenient to judge whether the outriggers are under force. Second, the outriggers need to be fully retracted into place during driving, otherwise scratches are likely to occur, and the existing outriggers cannot detect whether the outriggers are fully retracted; third, although the existing outriggers use ball heads to ensure contact with uneven ground. However, when the outriggers are retracted, the bottom ends of the outriggers are in a free-swaying state. Even if they are retracted to abut against the top structure, they can only maintain a horizontal state and cannot be adjusted to other postures to adapt to possible scenarios that require avoidance; fourth, the vehicle's outriggers are all integrated structures with the vehicle frame, and it is difficult to increase support points by adding outriggers. Summary of the Invention

[0005] In order to address the deficiencies of the prior art, the present invention provides a support leg and a vehicle having the support leg, which can provide feedback on the supporting force state of the support leg, can provide feedback on whether the support leg is fully retracted when the vehicle is driving, can adjust the inclination angle of the bottom end of the support leg when it is retracted, and can be installed on the vehicle to increase or adjust the position of the support point.

[0006] To achieve the above-mentioned purpose, the technical solution of the present application provides a support leg, including a cylinder body and a support foot, the cylinder body including a cylinder barrel and a piston rod located at the top end of the cylinder barrel, and the bottom end of the cylinder barrel is connected to the support foot; the support leg also includes a fixed sleeve arranged on the outside of the cylinder body, the top end of the fixed sleeve is provided with an inner edge, and the top outer wall of the piston rod is provided with a limiting groove, the height dimension of the limiting groove is greater than the height dimension of the inner edge, the inner edge is placed in the limiting groove and can move vertically relative to the limiting groove; the fixed sleeve and the piston rod are respectively vertically provided with a first distance sensor and a detection component, and the first distance sensor and the detection component are arranged opposite to each other.

[0007] If the outrigger effectively supports the ground, the inner edge of the retaining groove contacts the bottom of the retaining groove. The first distance sensor detects that the detection member is in the long-distance state, and a feedback signal is issued to indicate that the outrigger is effectively supporting the ground. If the outrigger does not effectively support the ground, the top edge of the retaining groove of the cylinder body falls under the action of gravity until it contacts the inner edge. The first distance sensor detects that the detection member is in the close-distance state, and a feedback signal is issued to indicate that the outrigger is not effectively supporting the ground. This arrangement provides feedback on the supporting force state of the outrigger.

[0008] Optionally, a mounting hole is formed at the top of the fixed sleeve, through which the piston rod is movably inserted. A support plate is bolted to the top of the fixed sleeve, extending toward the inside of the mounting hole, with the portion of the support plate extending into the mounting hole serving as an inner edge. The bolted support plate allows for an installation structure in which the inner edge is inserted into the retaining groove from the side, facilitating assembly and disassembly.

[0009] Optionally, it also includes a mounting plate, the top end of the piston rod extending out of the fixed sleeve has a hydraulic lock, the mounting plate is clamped and installed between the hydraulic lock and the piston rod, and the detection piece is fixedly connected to the mounting plate; the outer side wall of the fixed sleeve is fixedly connected to a connecting plate located at the bottom end of the detection piece, and the first distance sensor is fixedly connected to the connecting plate to realize the relative arrangement of the first distance sensor and the detection piece.

[0010] Optionally, a detection hole is defined in the top sidewall of the fixed sleeve, and a second distance sensor is mounted on the outer sidewall of the fixed sleeve, aligned with the detection hole. The top end of the cylinder serves as the detection end. When the cylinder is retracted, the detection end aligns with the second distance sensor through the detection hole. The second distance sensor detects whether the detection end is in place, providing feedback on whether the outrigger is fully retracted, thereby preventing potential scratches and other hazards during driving.

[0011] Optionally, a ball head is provided at the bottom end of the cylinder, a ball groove is opened at the top of the support foot and a cover plate is bolted to it, the ball head passes through the cover plate and is movably placed in the ball groove to enable the support foot to rotate in any direction to ensure that the support foot can adapt to the ground with different inclination angles.

[0012] Optionally, two adjustment baffles are provided on the outer sidewall of the fixed sleeve and are equipped with adjustment bolts. The two adjustment baffles are located on opposite sides of the bottom of the fixed sleeve. Both adjustment baffles have vertically extending adjustment holes. Both adjustment baffles are connected to the fixed sleeve via adjustment bolts passing through the adjustment holes. The bottom edges of the two adjustment baffles extend beyond the bottom end of the fixed sleeve and can abut against the support foot. By adjusting the height difference between the bottom edges of the two adjustment baffles, the tilt angle of the support foot when retracted can be adjusted, facilitating adaptation to different avoidance scenarios.

[0013] Optionally, the fixed sleeve is equipped with several sets of adjustable baffles, each set of which includes two adjustable baffles. The angles between the bottom edges of any two sets of adjustable baffles and the horizontal plane are different, and the angles between the bottom edges of the two adjustable baffles in each set are the same. By replacing baffles with different bottom edge inclination angles and adjusting the height position of the two baffles in each set, the support leg can be adjusted to any tilt position when retracted, better adapting to different avoidance scenarios.

[0014] Optionally, a limiting ring is fixed to the inner wall of the bottom end of the fixed sleeve, the cylinder slides through the limiting ring, and the top outer wall of the cylinder has an outer edge; when the cylinder extends, the outer edge can abut against the limiting ring to limit the maximum extension distance of the cylinder body, and at the same time it can also limit the shaking of the cylinder body to ensure the stability of the support legs.

[0015] Optionally, the outer side wall of the fixing sleeve is provided with a fixing flange, through which the support legs can be mounted at different positions of the vehicle, facilitating adjustment of the number and position of the vehicle support points and increasing flexibility in the arrangement of the support legs.

[0016] A vehicle is equipped with any of the above-mentioned supporting legs, and can use a first distance sensor to provide feedback on the supporting state of the supporting legs to ensure the supporting effect.

[0017] The technical solution of this application has the following advantages over the prior art:

[0018] Through the limiting grooves and inner edges of different heights, there is a certain amount of space for vertical movement between the fixed sleeve and the cylinder body. When the leg is under force, the inner edge abuts against the bottom side of the limiting groove; when the leg is not under force, the inner edge abuts against the top side of the limiting groove under the action of gravity. The above two states can be fed back by the relatively arranged first distance sensor and detection member to realize feedback on the support state of the leg, which is convenient for judging whether the leg is under force. The second distance sensor detects whether the detection end is in place to feedback whether the leg is retracted in place, avoiding dangers such as scratches during driving. By adjusting the position of the baffle, the tilt angle of the leg after retraction can be adjusted, which is convenient for adapting to avoidance scenarios with different needs; the leg can be installed at different positions of the vehicle through the fixed flange, which is convenient for adjusting the number and position of the vehicle support points. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a front view of the state when the outriggers are retracted;

[0021] Figure 2 This is a front cross-sectional view of the state where the outriggers are deployed for support;

[0022] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0023] Figure 4 It is a side view of the state when the outriggers are retracted;

[0024] Figure 5 It is a side view of the leg in the retracted state with an adjustment baffle whose bottom edge is inclined to the horizontal plane.

[0025] Icons: 1. Support foot; 2. Cylinder; 3. Piston rod; 4. Fixed sleeve; 5. Inner edge; 6. Limit groove; 7. First distance sensor; 8. Detection part; 9. Mounting hole; 10. Support plate; 11. Mounting plate; 12. Hydraulic lock; 13. Connecting plate; 14. Detection hole; 15. Second distance sensor; 16. Detection end; 17. Ball head; 18. Ball groove; 19. Cover plate; 20. Adjustment baffle; 21. Adjustment bolt; 22. Adjustment hole; 23. Limit ring; 24. Outer edge; 25. Fixed flange. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0027] Example 1:

[0028] This embodiment provides a support leg for installation on a vehicle. Figure 1 and Figure 2 As shown, it includes a cylinder body and a support leg 1. The cylinder body includes a cylinder barrel 2 and a piston rod 3 located at the top of the cylinder barrel 2. The bottom end of the cylinder barrel 2 is connected to the support leg 1. The cylinder body slides between the cylinder barrel 2 and the piston rod 3 to achieve the support leg 1 to abut against the ground or retract.

[0029] Based on the above structure, Figures 1 to 3 As shown, the support leg also includes a fixed sleeve 4 that is sleeved on the outside of the cylinder body. The top of the fixed sleeve 4 is provided with an inner edge 5. The top outer wall of the piston rod 3 is provided with a limit groove 6. The height of the limit groove 6 is greater than the height of the inner edge 5. The inner edge 5 is placed in the limit groove 6 and can move vertically relative to the limit groove 6. The fixed sleeve 4 and the piston rod 3 are respectively provided with a first distance sensor 7 and a detection member 8 vertically, and the first distance sensor 7 is arranged opposite to the detection member 8.

[0030] During use, the fixed sleeve 4 is fixedly mounted on the vehicle. When the outrigger is not supported on the ground, since the height dimension of the limiting groove 6 is greater than the height dimension of the inner edge 5, there is a certain amount of vertical space between the fixed sleeve 4 and the main body of the oil cylinder. When the outrigger is not in contact with the ground, the top side of the limiting groove 6 abuts against the inner edge 5 under the action of gravity. When the outrigger is supported on the ground, the inner edge 5 abuts against the bottom side of the limiting groove 6. The first distance sensor 7 and the detection member 8 are arranged relative to each other. When the inner edge 5 abuts against the top and bottom sides of the limiting groove 6 respectively, the distance between the first distance sensor 7 and the detection member 8 is different. The first distance sensor 7 detects the above distance and outputs a signal to the outside to feedback the state of the outrigger support, so as to facilitate the judgment of whether the outrigger is in contact with the ground and whether it is under force.

[0031] based on Figure 3 As shown, a mounting hole 9 is provided at the top of the fixed sleeve 4, and the piston rod 3 is movably inserted into the mounting hole 9. A support plate 10 is bolted to the top of the fixed sleeve 4, and the support plate 10 extends toward the inner side of the mounting hole 9. The portion of the support plate 10 extending into the mounting hole 9 serves as the inner edge 5. The support plates 10 connected by bolts can realize the installation structure in which the inner edge 5 is inserted into the limiting groove 6 from the side, and it is easy to disassemble and assemble. In this embodiment, the support plates 10 are two semi-circular plate bodies, and the corresponding limiting grooves 6 are arranged around the piston rod 3. After the piston rod 3 is placed in the mounting hole 9, the two support plates 10 are inserted into the limiting groove 6 from opposite sides. The two support plates 10 form a complete circular ring, and then the support plates 10 are connected to the top of the fixed sleeve 4 by bolts to achieve installation.

[0032] Of course, the limiting grooves 6 can also be symmetrically arranged on both sides of the piston rod 3. The support plate 10 is two rectangular plates, and the two rectangular plates are respectively inserted into the limiting grooves 6 on both sides, and the support plate 10 is fixed to the top of the fixed sleeve 4 by bolts, which can also realize the connection between the limiting groove 6 and the inner edge 5.

[0033] Further, based on Figure 3 As shown, it also includes a mounting plate 11, and the top end of the piston rod 3 extending out of the fixed sleeve 4 is provided with a hydraulic lock 12, and the mounting plate 11 is clamped and installed between the hydraulic lock 12 and the piston rod 3. A through hole is provided inside the mounting plate 11 to avoid the connection part between the cylinder body and the hydraulic lock 12. The detection member 8 is fixedly connected to the mounting plate 11, and can be detachably connected by bolts, or can be directly set as an integral whole. The detection member 8 can be made of a bent plate, or a block material. The detection member 8 is only used as a component to trigger the first distance sensor 7, and its shape can be set arbitrarily. The outer wall of the fixed sleeve 4 is fixedly connected to a connecting plate 13 located at the bottom end of the detection member 8, and can be detachably connected by bolts, or can be directly welded as an integral whole. The first distance sensor 7 is fixedly connected to the connecting plate 13.

[0034] Of course, the positions of the first distance sensor 7 and the detection member 8 can be interchanged, that is, the first distance sensor 7 is located in the oil cylinder body, and the detection member 8 is located in the fixed sleeve 4, and the effect is the same.

[0035] Further, based on Figure 2 and Figure 4 As shown, the top sidewall of the fixed sleeve 4 is provided with a detection hole 14. A second distance sensor 15, aligned with the detection hole 14, is mounted on the outer sidewall of the fixed sleeve 4. The top end of the cylinder 2 serves as a detection end 16. When the cylinder 2 is retracted, the detection end 16 aligns with the second distance sensor 15 through the detection hole 14. Retraction of the cylinder 2 corresponds to the retracted outriggers. The second distance sensor 15 detects whether the detection end 16 is in place, providing feedback on the retraction of the outriggers, thereby preventing potential scratches and other hazards during driving.

[0036] Further, based on Figure 2 As shown, a ball head 17 is provided at the bottom end of the cylinder barrel 2, and a ball slot 18 is provided at the top of the support foot 1 and is bolted to a cover plate 19. The ball head 17 passes through the cover plate 19 and is movably placed in the ball slot 18. This structure allows the cylinder body to rotate in any direction with the support foot 1, ensuring that the support foot 1 can adapt to ground surfaces with different inclination angles.

[0037] At the same time, based on Figure 1 and Figure 4 As shown, the outer wall of the fixed sleeve 4 is provided with two adjustment baffles 20 and is equipped with an adjustment bolt 21. The two adjustment baffles 20 are respectively located on two opposite sides of the bottom of the fixed sleeve 4. Both adjustment baffles 20 are provided with a vertically extending adjustment hole 22. Both adjustment baffles 20 are connected to the fixed sleeve 4 by the adjustment bolts 21 passing through the adjustment holes 22. The height position of the two adjustment baffles 20 can be adjusted through the vertically extending adjustment hole 22. After the height position is determined, the adjustment baffles 20 are fixed by tightening the adjustment bolts 21. The bottom edges of the two adjustment baffles 20 extend out of the bottom end of the fixed sleeve 4 and can abut against the support foot 1. Since the height position of the two adjustment baffles 20 is adjustable, the support foot 1 can also be rotated arbitrarily. When the support legs are retracted, the support abuts against the bottom edges of the two adjustment baffles 20, thereby fixing the tilt direction of the support foot 1. By adjusting the height difference between the bottom edges of the two adjustment baffles 20, the support foot 1 can be tilted left and right ( Figure 1 The angle can be adjusted to suit different avoidance scenarios.

[0038] Preferably, based on Figure 4 and Figure 5As shown, the fixed sleeve 4 is equipped with several sets of adjusting baffles 20. Each set of adjusting baffles 20 includes two adjusting baffles 20. The angles between the bottom edges of any two sets of adjusting baffles 20 and the horizontal plane are different. The angles between the bottom edges of the two adjusting baffles 20 in each set of adjusting baffles 20 and the horizontal plane are the same. Several sets means at least two sets. The fixed sleeve 4 is equipped with several sets of adjusting baffles 20, for example, three or four sets, and only one set of adjusting baffles 20 is installed on the fixed sleeve 4 at any one time.

[0039] When in use, the two adjusting baffles 20 in each set of adjusting baffles 20 are respectively installed on both sides of the bottom end of the fixed sleeve 4. By adjusting the height position of the two adjusting baffles 20, the front and rear tilt of the support foot 1 when it is retracted can be adjusted ( Figure 4 and Figure 5 By selecting the adjustment baffle 20 with different angles between the bottom edge and the horizontal plane, the left and right tilt of the support leg 1 when it is retracted ( Figure 5 The above configuration allows the support leg 1 to be adjusted to any desired tilt position when retracted. The angle between the bottom edge of the adjustment plate 20 and the horizontal plane can be adjusted to various angles, such as 0 degrees, 5 degrees, and 10 degrees. The more options available, the better the adaptability.

[0040] Further, based on Figure 1 and Figure 2 As shown, a limit ring 23 is fixed to the inner sidewall of the bottom end of the fixed sleeve 4. The cylinder 2 slides through the limit ring 23. The outer sidewall of the top end of the cylinder 2 has an outer edge 24. When the cylinder 2 extends, the outer edge 24 abuts the limit ring 23, limiting the maximum extension distance of the cylinder body. This also limits the wobbling of the cylinder body and ensures the stability of the support legs. In this embodiment, the limit ring 23 is composed of several arc-shaped limit blocks and is fixed to the inner sidewall of the bottom end of the fixed sleeve 4 by bolts.

[0041] Further, based on Figure 4 As shown, the outer wall of the fixed sleeve 4 is provided with a fixing flange 25. The support legs can be installed at different locations on the vehicle through the fixing flange 25, facilitating the adjustment of the number and location of vehicle support points and increasing the flexibility of the support leg arrangement. In actual use, since the weight of the chassis of most current double-cab vehicles is concentrated in the front of the vehicle body, it is necessary to add independent support legs to the cab or other areas without subframe structures to meet the requirements of vehicle leveling during operation of high-rise fire trucks and engineering vehicles. The support legs of this embodiment can be installed below the cab through the fixing flange 25.

[0042] The technical solution of this embodiment is used as follows:

[0043] The support leg is installed on the vehicle through the fixed flange 25. By starting the cylinder body, the cylinder barrel 2 extends downward, and the support foot 1 abuts against the ground stroke support. Since the cylinder barrel 2 and the support foot 1 are connected by the ball head 17, the support foot 1 can adapt to the ground with any inclination angle. If the support leg forms an effective support with the ground, the inner edge 5 abuts against the bottom side of the limiting groove 6, and the first distance sensor 7 detects that the detection part 8 is in a long-distance state, and then sends a feedback signal to inform the support leg that the support is effective. If the support leg does not form an effective support with the ground, under the action of gravity, the top side of the limiting groove 6 of the cylinder body falls to abut against the inner edge 5, and the first distance sensor 7 detects that the detection part 8 is in a close-range state, and then sends a feedback signal to inform the support leg that it has failed to provide effective support. After use, the support leg is retracted, and the cylinder barrel 2 moves up to its detection end 16 to align with the second distance sensor 15. The second distance sensor 15 detects that the cylinder barrel 2 has moved up to its position and feeds back a signal to the outside that the support leg is fully retracted. If the outrigger moves downward during driving, the second distance sensor 15 detects the downward movement of the cylinder 2 and provides feedback indicating the outrigger extension for timely processing. By adjusting the height of the adjustment baffle 20 and replacing the adjustment baffle 20 with different bottom edge inclinations, the inclination angle of the support foot 1 can be adjusted after the outrigger is retracted to accommodate different avoidance scenarios.

[0044] Example 2:

[0045] This embodiment provides a vehicle equipped with the outriggers described in Example 1. The vehicle can be a fire truck or engineering vehicle requiring elevated support. When the vehicle is supported by the outriggers, a first distance sensor 7 provides feedback on whether the outriggers are supporting the vehicle, enabling timely and appropriate adjustment of the outriggers. The first distance sensor 7 can also be connected to the cab for timely feedback to the operator.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A support leg, comprising a cylinder body and a support foot (1), wherein the cylinder body comprises a cylinder barrel (2) and a piston rod (3) located at the top end of the cylinder barrel (2), and the bottom end of the cylinder barrel (2) is connected to the support foot (1); Its characteristics are: The invention also includes a fixed sleeve (4) sleeved on the outside of the oil cylinder body, the top of the fixed sleeve (4) is provided with an inner edge (5), the top outer wall of the piston rod (3) is provided with a limiting groove (6), the height dimension of the limiting groove (6) is greater than the height dimension of the inner edge (5), the inner edge (5) is placed in the limiting groove (6) and can move vertically relative to the limiting groove (6); the fixed sleeve (4) and the piston rod (3) are respectively vertically provided with a first distance sensor (7) and a detection member (8), and the first distance sensor (7) is arranged relative to the detection member (8).

2. The support leg according to claim 1, wherein: The top end of the fixed sleeve (4) is provided with a mounting hole (9), the piston rod (3) is movably inserted into the mounting hole (9), the top end of the fixed sleeve (4) is bolted to a support plate (10), the support plate (10) extends toward the inner side of the mounting hole (9), and the portion of the support plate (10) extending into the mounting hole (9) serves as the inner edge (5).

3. The support leg according to claim 1 or 2, characterized in that: It also includes a mounting plate (11), the top end of the piston rod (3) extending out of the fixed sleeve (4) is provided with a hydraulic lock (12), the mounting plate (11) is clamped and installed between the hydraulic lock (12) and the piston rod (3), and the detection member (8) is fixedly connected to the mounting plate (11); the outer side wall of the fixed sleeve (4) is fixedly connected to a connecting plate (13) located at the bottom end of the detection member (8), and the first distance sensor (7) is fixedly connected to the connecting plate (13).

4. The support leg according to claim 1 or 2, characterized in that: A detection hole (14) is provided on the top side wall of the fixed sleeve (4), a second distance sensor (15) aligned with the detection hole (14) is installed on the outer side wall of the fixed sleeve (4), and the top end of the cylinder (2) is a detection end (16); when the cylinder (2) is retracted, the detection end (16) is aligned with the second distance sensor (15) through the detection hole (14).

5. The support leg according to claim 1, wherein: A ball head (17) is provided at the bottom end of the cylinder (2), a ball groove (18) is provided at the top of the support foot (1) and a cover plate (19) is bolted thereto, and the ball head (17) passes through the cover plate (19) and is movably placed in the ball groove (18).

6. The support leg according to claim 5, characterized in that: The outer side wall of the fixed sleeve (4) is provided with two adjustment baffles (20) and is equipped with an adjustment bolt (21). The two adjustment baffles (20) are respectively located on two opposite sides of the bottom of the fixed sleeve (4); the two adjustment baffles (20) are both provided with an adjustment hole (22) extending vertically. The two adjustment baffles (20) are connected to the fixed sleeve (4) through the adjustment bolt (21) passing through the adjustment hole (22). The bottom edges of the two adjustment baffles (20) extend out of the bottom end of the fixed sleeve (4) and can abut against the support foot (1).

7. The support leg according to claim 6, wherein: The fixed sleeve (4) is equipped with a plurality of groups of the adjusting baffles (20), each group of the adjusting baffles (20) includes two adjusting baffles (20), the angles between the bottom edges of any two groups of the adjusting baffles (20) and the horizontal plane are different, and the angles between the bottom edges of the two adjusting baffles (20) in each group of the adjusting baffles (20) and the horizontal plane are the same.

8. The support leg according to claim 1, 2 or 5, characterized in that: A limiting ring (23) is fixed to the inner side wall of the bottom end of the fixed sleeve (4), and the cylinder (2) is slidably arranged on the limiting ring (23). The outer side wall of the top end of the cylinder (2) has an outer edge (24); when the cylinder (2) extends, the outer edge (24) can abut against the limiting ring (23).

9. The support leg according to claim 1, 2, 5, 6 or 7, characterized in that: The outer side wall of the fixed sleeve (4) is provided with a fixed flange (25).

10. A vehicle, characterized in that: The supporting leg according to any one of claims 1 to 9 is installed.

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