Support leg structure and vehicle

Abstract

The application discloses a support leg structure and a vehicle, wherein the support leg structure comprises a support leg main frame, a support leg assembly and a locking structure; the support leg main frame is used for being connected with a vehicle frame; the support leg assembly comprises a first support leg and a second support leg; two ends of the first support leg are respectively hinged with the support leg main frame and a middle part of the second support leg; an upper end of the second support leg is formed with a sliding part; the sliding part is hingedly installed on the support leg main frame and can move along the length direction of the support leg main frame; a lower end is used for being supported on the ground; the sliding part has a retreat locking movement stroke along the length direction of the support leg main frame; the locking structure comprises a ratchet part and a rack part matched with each other; the rack part is arranged on the support leg main frame; the ratchet part is connected with the sliding part; on the retreat locking movement stroke of the sliding part, the ratchet part can be locked with the rack part to make the sliding part be locked at different positions of the support leg main frame.

Description

Technical Field

[0001] This invention relates to the field of automotive outrigger technology, and particularly to an outrigger structure and vehicle. Background Technology

[0002] Due to their large weight and high potential energy, motorhomes require sufficiently sturdy parking outriggers to meet their parking needs and improve their load-bearing capacity. Existing motorhome parking outrigger devices include screw-type self-locking and hydraulic self-locking types. Screw-type self-locking requires manual or motor-driven screw turning, which is slow and costly. Hydraulic self-locking uses the incompressibility of hydraulic fluid for self-locking, which is complex and costly. Summary of the Invention

[0003] The main objective of this invention is to propose a support leg structure and vehicle, which aims to solve the problems of complex and costly self-locking structures in existing automotive support leg devices.

[0004] To achieve the above objectives, the present invention proposes a leg structure, comprising:

[0005] Outrigger main frame, used to connect to the vehicle frame;

[0006] The outrigger assembly includes a first outrigger and a second outrigger. The two ends of the first outrigger are hinged to the main outrigger frame and the middle of the second outrigger, respectively. The upper end of the second outrigger has a sliding portion, which is hinged to the main outrigger frame and movable along the length of the main outrigger frame. The lower end of the sliding portion is used to support the ground. The sliding portion has a locking travel along the length of the main outrigger frame.

[0007] The locking structure includes a ratchet portion and a rack portion that cooperate with each other. The rack portion is disposed on the main frame of the outrigger, and the ratchet portion is connected to the sliding portion. During the anti-locking movement of the sliding portion, the ratchet portion can lock with the rack portion to prevent the sliding portion from moving backward, so that the sliding portion can be locked at different positions on the main frame of the outrigger.

[0008] Optionally, a pivot extending along the width direction of the main support frame is hinged to the sliding part;

[0009] The outrigger structure also includes a drive device, which drives the rotating shaft to rotate along its axis and slide along the length of the outrigger main frame.

[0010] The ratchet portion is located on the rotating shaft.

[0011] Optionally, the driving device includes a linear drive structure, which includes a drive rod that moves along the length direction of the main support frame.

[0012] The support leg structure also includes a push plate, the lower end of which is fixedly connected to the rotating shaft, and the upper end of which is hinged to the end of the drive rod.

[0013] Optionally, the upper end of the push plate is formed with a notch, the end of the drive rod is disposed in the notch, and is hinged to the two opposite inner sidewalls of the notch through the push plate shaft.

[0014] Optionally, the main support frame has a mounting cavity with an opening at the lower end, and the sliding part is slidably mounted in the mounting cavity from the opening of the mounting cavity.

[0015] Optionally, the mounting cavity is provided with two strip-shaped holes extending along its length on the two side walls opposite to each other in the width direction of the main support frame;

[0016] A pivot shaft extending along the width direction of the main support frame is hinged to the sliding part, and the two ends of the pivot shaft are respectively inserted into the two strip holes.

[0017] Optionally, a pivot extending along the width direction of the main support frame is hinged to the sliding part, and a ratchet plate and a mounting sleeve are sequentially sleeved on the pivot. The ratchet part is located at the side end of the ratchet plate, and the mounting sleeve is anti-rotation mounted relative to the main support frame.

[0018] The outrigger structure also includes a tension spring, one end of which is connected to the mounting sleeve and the other end of which is connected to the ratchet plate, so that the ratchet part flexibly abuts against the rack part.

[0019] Optionally, the main support frame has a mounting cavity with an opening at the lower end, and the mounting cavity has two strip-shaped holes extending along its length on the two side walls opposite each other in the width direction of the main support frame.

[0020] The mounting bracket includes a base body and two connecting arms extending from both ends of the base body into the mounting cavity, with the two connecting arms inserted into the strip hole.

[0021] Optionally, along the length of the main support frame, the sliding part has a retraction travel along the end of the main support frame toward its center and an extension travel from the center of the main support frame toward its end.

[0022] Two ratchet teeth are provided;

[0023] The outrigger structure also includes a switching structure for switching one of the two ratchet portions to lock with the rack portion, so that the sliding portion can be locked at different positions on the outrigger main frame during both the deployment and retraction strokes.

[0024] Optionally, a pivot that rotates along the width direction axis of the main support frame is hinged to the sliding part. A ratchet plate and a mounting sleeve are sequentially sleeved on the pivot. Both ratchet parts are located at the side ends of the ratchet plate. The mounting sleeve is anti-rotation mounted relative to the main support frame. The support structure also includes a tension spring, one end of which is connected to the mounting sleeve and the other end is connected to the ratchet plate.

[0025] The switching structure includes:

[0026] A transmission ring is disposed on the ratchet sleeve plate; and,

[0027] The switching lever has one end located on the rotating shaft and the other end passing through the transmission ring.

[0028] Furthermore, the present invention provides a vehicle including the aforementioned outrigger structure.

[0029] In the technical solution of this invention, when the outrigger assembly needs to support the vehicle, the sliding part slides along the length direction of the outrigger main frame toward the first outrigger, causing the lower end of the second outrigger to rotate downwards to abut against the ground. The ratchet part slides toward the first outrigger under the action of the sliding part. During the sliding process of the ratchet part, the ratchet part remains in contact with the rack part, so that when the sliding part stops sliding, the ratchet part can lock in the opposite direction with the rack part at the current position to prevent the sliding part from sliding in the opposite direction. When the outrigger assembly needs to be retracted... When the ratchet part disengages from the rack part, the sliding part can slide in a direction away from the first outrigger to retract the outrigger assembly. Thus, the ratchet part and the rack part, which are locked together, remain locked in the opposite direction as the sliding part slides toward the first outrigger, allowing it to slide only in one direction. This allows the sliding part to be locked at different positions on the outrigger main frame, adjusting the height of the outrigger main frame from the ground. This enables the outrigger structure to adapt to different ground heights, thereby improving the applicability of the outrigger structure. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 A three-dimensional structural diagram of an embodiment of the leg structure provided by the present invention;

[0032] Figure 2for Figure 1 A partial three-dimensional structural diagram of the support leg structure in the diagram;

[0033] Figure 3 for Figure 1 A front view schematic diagram of the support leg structure in the deployed state;

[0034] Figure 4 for Figure 1 A cross-sectional view of the outrigger structure in its deployed state.

[0035] Figure 5 for Figure 1 A schematic diagram of the main structure when the outriggers are in the retracted state;

[0036] Figure 6 for Figure 1 A cross-sectional view of the outrigger structure in the retracted state.

[0037] Explanation of icon numbers:

[0038] label name label name 100 outrigger structure 25 push plate 1 outrigger frame 26 Mounting sleeve 11 strip hole 261 Connecting arm 12 Mounting cavity 27 tension spring 2 outrigger assembly 28 Switching Structure 21 First leg 281 Transmission ring 22 Second leg 282 Switch lever 23 pivot 3 Locking structure 24 drive unit 31 Ratchet 241 drive lever 32 rack section

[0039] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that if the embodiments of the present invention involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0042] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0043] Due to their large weight and high potential energy, motorhomes require sufficiently sturdy parking outriggers to meet their parking needs and improve their load-bearing capacity. Existing motorhome parking outrigger devices include screw-type self-locking and hydraulic self-locking types. Screw-type self-locking requires manual or motor-driven screw turning, which is slow and costly. Hydraulic self-locking uses the incompressibility of hydraulic fluid for self-locking, which is complex and costly.

[0044] In view of this, the present invention provides a support leg structure, aiming to solve the problems of complex and costly self-locking structures in existing automotive support leg devices. Specifically, Figures 1 to 6 This is a schematic diagram of an embodiment of the support leg structure provided by the present invention.

[0045] Please see Figures 1 to 4 The outrigger structure 100 includes an outrigger main frame 1, an outrigger assembly 2, and a locking structure 3. The outrigger main frame 1 is used to connect to the vehicle frame. The outrigger assembly 2 includes a first outrigger 21 and a second outrigger 22. The two ends of the first outrigger 21 are respectively hinged to the middle of the outrigger main frame 1 and the second outrigger 22. The upper end of the second outrigger 22 has a sliding part, which is hinged to the outrigger main frame 1 and can move along the length direction of the outrigger main frame 1. The lower end is used to support the ground. The sliding part has a locking movement along the length of the main support frame 1. The locking structure 3 includes a ratchet part 31 and a rack part 32 that cooperate with each other. The rack part 32 is provided on the main support frame 1, and the ratchet part 31 is connected to the sliding part. During the locking movement of the sliding part, the ratchet part 31 can lock with the rack part 32 so that the sliding part can be locked at different positions on the main support frame 1.

[0046] In the technical solution of the present invention, when the outrigger assembly 2 needs to support the vehicle, the sliding part slides along the length direction of the outrigger main frame 1 toward the first outrigger 21, causing the lower end of the second outrigger 22 to rotate downwards to abut against the ground. The ratchet part 31 slides toward the first outrigger 21 under the action of the sliding part. During the sliding process of the ratchet part 31, the ratchet part 31 remains in contact with the rack part 32, so that when the sliding part stops sliding, the ratchet part 31 can lock in the opposite direction with the rack part 32 at the current position to prevent the sliding part from sliding in the opposite direction. When the outrigger assembly 2 needs to be retracted... When the ratchet 31 disengages from the rack 32, the sliding part can slide away from the first support leg 21 to retract the support leg assembly 2. Thus, the ratchet 31 and the rack 32, which are locked together, remain locked in the opposite direction as the sliding part slides toward the first support leg 21, allowing it to slide only in one direction. This allows the sliding part to be locked at different positions on the main support leg frame 1, so as to adjust the height of the main support leg frame 1 from the ground. This allows the support leg structure 100 to adapt to different ground heights, thereby improving the applicability of the support leg structure 100.

[0047] In order to drive the sliding part to slide along the length direction of the main support frame 1, in this embodiment, please refer to Figures 2 to 4 A pivot 23 extending along the width direction of the main support frame 1 is hinged to the sliding part. The support structure 100 also includes a drive device 24, which drives the pivot 23 so that the pivot 23 can rotate along its axis and slide along the length direction of the main support frame 1. The ratchet part 31 is provided on the pivot 23. Thus, by providing the pivot 23, the sliding part can be driven to slide along the length direction of the main support frame 1. At the same time, by providing the drive device 24, the pivot 23 can slide along the length direction of the main support frame 1 and rotate along the width direction axis of the main support frame 1.

[0048] Furthermore, in order to enable the rotating shaft 23 to slide both along the length direction of the main support frame 1 and rotate along the width axis of the main support frame 1, in this embodiment, please refer to... Figure 2 and Figure 4The driving device 24 includes a linear drive structure, which includes a drive rod 241 that moves along the length of the main support frame 1. The support frame structure 100 also includes a push plate 25. The lower end of the push plate 25 is fixedly connected to the rotating shaft 23, and the upper end is hinged to the end of the drive rod 241. Thus, by setting the drive rod 241 to hinge the push plate 25, and by setting the push plate 25, the rotating shaft 23 can be driven to slide along the length of the main support frame 1, and the linear motion of the linear drive structure can be converted into rotation, so that the rotating shaft 23 can rotate along the width axis of the main support frame 1. Of course, in other embodiments, the driving device 24 may also include a drive cylinder for sliding the rotating shaft 23 and a drive motor for driving the rotating shaft 23 to rotate, etc., and the present invention does not limit this.

[0049] There are various ways to connect the push plate 25 and the rotating shaft 23. The push plate 25 and the rotating shaft 23 can be connected by welding or by screws, etc. The present invention does not limit this. Specifically, in this embodiment, the push plate 25 and the rotating shaft 23 are connected by screws so that the push plate 25 can be detachably installed on the rotating shaft 23 for subsequent maintenance or replacement.

[0050] To facilitate the connection between the drive rod 241 and the push plate 25, please refer to [reference needed] in this embodiment. Figure 1 and Figure 2 The upper end of the push plate 25 has a notch, and the end of the drive rod 241 is located in the notch and is hinged to the two opposite inner sidewalls of the notch via the push plate 25 shaft. Thus, by setting the notch, the drive rod 241 can be hinged to the upper end of the push plate 25, so that the push plate 25 can rotate along the width axis of the main support frame 1 and slide along the length axis of the main support frame 1 under the drive of the drive rod 241.

[0051] In order to enable the sliding part to slide along the length direction of the main support frame 1, in this embodiment, the main support frame 1 is formed with a mounting cavity 12 with an opening at the lower end. The sliding part is slidably installed in the mounting cavity 12 from the opening of the mounting cavity 12. Thus, by setting the mounting cavity 12, the rotating shaft 23 is installed on the main support frame 1, so that the sliding part can slide along the length direction of the main support frame under the drive of the rotating shaft 23.

[0052] Furthermore, the mounting cavity 12 has two strip-shaped holes 11 extending along its length on the opposite side walls of the main support leg 1 in the width direction. A rotating shaft 23 extending along the width direction of the main support leg 1 is hinged to the sliding part, with both ends of the rotating shaft 23 passing through the two strip-shaped holes 11 respectively. Thus, by providing two strip-shaped holes 11, the rotating shaft 23 can slide along a predetermined track, thereby helping to improve the stability of the sliding of the rotating shaft 23. Of course, in other embodiments, the strip-shaped hole 11 can also be a strip groove, etc., and the present invention does not limit this.

[0053] In order to ensure that the ratchet portion 31 remains in contact with the rack portion 32 during the sliding of the rotating shaft 23, in this embodiment, please refer to... Figure 2 and Figure 3 A pivot 23 extending along the width direction of the main support leg 1 is hinged to the sliding part. A ratchet plate and a mounting sleeve 26 are sequentially fitted onto the pivot 23. The ratchet portion 31 is located at the side end of the ratchet plate. The mounting sleeve 26 is anti-rotationally mounted relative to the main support leg 1. The support leg structure 100 also includes a tension spring 27, one end of which is connected to the mounting sleeve 26, and the other end is connected to the ratchet plate, so that the ratchet portion 31 flexibly abuts against the rack portion 32. The ratchet sleeve is fitted onto the rotating shaft 23 so that the ratchet portion 31 can rotate relative to the rotating shaft 23. The mounting sleeve 26 is fitted onto the rotating shaft 23 to prevent the mounting sleeve 26 from rotating with the rotating shaft 23, so as to accommodate the tension spring 27. The tension spring 27 allows the ratchet portion 31 to flexibly abut against the rack portion 32, ensuring that the ratchet portion 31 and rack portion 32 remain in contact without affecting the sliding of the ratchet portion 31 along the length of the main support frame 1. Of course, in other embodiments, the ratchet portion 31 can maintain contact with the rack portion 32 through an electro-magnetic attraction structure. Any structure that allows the ratchet portion 31 and rack portion 32 to maintain contact is within the scope of protection of this invention.

[0054] Furthermore, to prevent the mounting sleeve 26 from rotating with the rotating shaft 23, in this embodiment, please refer to... Figure 2 , Figure 3 and Figure 5The main support frame 1 has a mounting cavity 12 with an opening at the lower end. The mounting cavity 12 has two strip-shaped holes 11 extending along its length on the two side walls opposite each other in the width direction of the main support frame 1. The mounting sleeve 26 includes a base body and two connecting arms 261 extending from both ends of the base body into the mounting cavity 12. The two connecting arms 261 are inserted into the strip-shaped holes 11. In this way, by setting the two connecting arms 261, the two ends of the mounting sleeve 26 abut against the strip-shaped holes 11, so as to restrict the rotation of the mounting sleeve 26 and prevent the mounting sleeve 26 from rotating with the rotating shaft 23.

[0055] It should be noted that there are various structures for restricting the rotation of the mounting sleeve 26. Specifically, in another embodiment, the lower end of the mounting sleeve 26 is provided with a limiting part extending along the width direction of the main support frame 1 to abut against the lower end of the main support frame 1. In this way, by setting the limiting part, the rotation of the mounting sleeve 26 can be restricted.

[0056] Theoretically, only one ratchet 31 needs to be provided. When vehicle support is needed, the sliding part can be locked at different positions on the outrigger main frame 1 to adjust the height of the outrigger assembly 2. When vehicle support is not needed, the outrigger assembly 2 can be retracted via the drive device 24. However, if the drive device 24 fails, the outrigger assembly 2 will automatically deploy under gravity. Based on this, in this embodiment, please refer to... Figures 3 to 6 Along the length of the main support frame 1, the sliding part has a retractable travel along the end of the main support frame 1 toward its center and an extendable travel from the center of the main support frame 1 toward its end. Two ratchet portions 31 are provided. The support leg structure 100 also includes a switching structure 28 for switching one of the two ratchet portions 31 to lock with the rack portion 32, so that the sliding part can be locked at different positions on the main support frame 1 corresponding to both the extendable and retractable travels. When the sliding part is in the extendable travel position... During the process, one of the ratchet portions 31 engages with the rack portion 32, so that the sliding portion can only slide in the unfolding direction. When the sliding portion retracts from the unfolded state, the switching structure 28 switches to another ratchet portion 31 engaging with the rack portion 32, so that the sliding portion can only slide in the retraction direction. In this way, by setting two ratchet portions 31 and the switching structure 28, the sliding portion can be locked to the main support frame 1 during the unfolding or retraction process, preventing the support leg assembly 2 from falling when the drive device 24 fails.

[0057] Further, please refer to Figure 4 and Figure 6A rotating shaft 23, which rotates along the width axis of the main support frame 1, is hinged to the sliding part. A ratchet plate and a mounting sleeve 26 are sequentially sleeved on the rotating shaft 23. Two ratchet portions 31 are located at the side ends of the ratchet plate. The mounting sleeve 26 is anti-rotationally mounted relative to the main support frame 1. The support leg structure 100 also includes a tension spring 27, one end of which is connected to the mounting sleeve 26 and the other end to the ratchet plate. The switching structure 28 includes a transmission ring 281 and a switching rod 282. The transmission ring 281 is located on the ratchet plate, and one end of the switching rod 282 is located on the rotating shaft 23, while the other end passes through the transmission ring 281. During the unfolding stroke, the rotating shaft 23 rotates clockwise. The switching lever 282 rotates synchronously with the rotating shaft 23, causing the ratchet sleeve to rotate clockwise, so that the ratchet part 31 on the right side contacts the rack part 32. During the retraction stroke, the rotating shaft 23 rotates counterclockwise, and the switching lever 282 rotates synchronously with the rotating shaft 23, causing the ratchet sleeve to rotate counterclockwise, so that the ratchet part 31 on the left side contacts the rack part 32. Thus, by setting the switching lever 282 and the transmission ring 281, the switching structure 28 can switch different ratchet parts 31 by using the rotation of the rotating shaft 23, so that the switching structure 28 can share the drive device 24 for drive, avoiding the need for an additional drive structure, thereby helping to simplify the structure of the support leg structure 100.

[0058] Furthermore, to achieve the above objectives, the present invention also provides a vehicle including the aforementioned outrigger structure 100. It should be noted that the structure of the outrigger structure 100 in the vehicle can refer to the embodiments of the outrigger structure 100 described above, and will not be repeated here. Since the outrigger structure 100 is used in the vehicle provided by the present invention, the embodiments of the vehicle provided by the present invention include all technical solutions of all embodiments of the outrigger structure 100, and the achieved technical effects are completely the same, and will not be repeated here.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A support leg structure, characterized in that, include: Outrigger main frame, used to connect to the vehicle frame; The outrigger assembly includes a first outrigger and a second outrigger. The two ends of the first outrigger are hinged to the main outrigger frame and the middle of the second outrigger, respectively. The upper end of the second outrigger has a sliding portion, which is hinged to the main outrigger frame and movable along the length of the main outrigger frame. The lower end of the sliding portion is used to support the ground. The sliding portion has a locking travel along the length of the main outrigger frame. The locking structure includes a ratchet portion and a rack portion that cooperate with each other. The rack portion is disposed on the main frame of the outrigger, and the ratchet portion is connected to the sliding portion. During the anti-locking movement of the sliding portion, the ratchet portion can lock with the rack portion to prevent the sliding portion from moving backward, so that the sliding portion can be locked at different positions on the main frame of the outrigger. A pivot shaft extending along the width direction of the main support frame is hinged to the sliding part; The outrigger structure also includes a drive device, which drives the rotating shaft to rotate along its axis and slide along the length of the outrigger main frame. The ratchet portion is located on the rotating shaft; The drive device includes a linear drive structure, which includes a drive rod that moves along the length direction of the main support frame. The support leg structure also includes a push plate, the lower end of which is fixedly connected to the rotating shaft, and the upper end of which is hinged to the end of the drive rod.

2. The leg structure as described in claim 1, characterized in that, The upper end of the push plate has a notch, and the end of the drive rod is located in the notch and is hinged to the two opposite inner walls of the notch via the push plate shaft.

3. The leg structure as described in claim 1, characterized in that, The main support frame has a mounting cavity with an opening at the lower end, and the sliding part is slidably installed in the mounting cavity from the opening of the mounting cavity.

4. The leg structure as described in claim 3, characterized in that, The mounting cavity has two strip-shaped holes extending along its length on the two opposite side walls of the main support frame in the width direction. A pivot shaft extending along the width direction of the main support frame is hinged to the sliding part, and the two ends of the pivot shaft are respectively inserted into the two strip holes.

5. The leg structure as described in claim 1, characterized in that, A pivot extending along the width direction of the main support frame is hinged to the sliding part. A ratchet plate and a mounting sleeve are sequentially sleeved on the pivot. The ratchet is located at the side end of the ratchet plate, and the mounting sleeve is anti-rotation mounted relative to the main support frame. The outrigger structure also includes a tension spring, one end of which is connected to the mounting sleeve and the other end of which is connected to the ratchet plate, so that the ratchet part flexibly abuts against the rack part.

6. The leg structure as described in claim 5, characterized in that, The main support frame has a mounting cavity with an opening at the lower end. The mounting cavity has two strip-shaped holes extending along the length direction on the two side walls opposite each other in the width direction of the main support frame. The mounting bracket includes a base body and two connecting arms extending from both ends of the base body into the mounting cavity, with the two connecting arms inserted into the strip hole.

7. The leg structure as described in claim 1, characterized in that, Along the length of the main support frame, the sliding part has a retraction stroke that moves from the end of the main support frame toward its center and an extension stroke that moves from the center of the main support frame toward its end. Two ratchet teeth are provided; The outrigger structure also includes a switching structure for switching one of the two ratchet portions to lock with the rack portion, so that the sliding portion can be locked at different positions on the outrigger main frame during both the deployment and retraction strokes.

8. The leg structure as described in claim 7, characterized in that, A pivot is hinged to the sliding part and rotates along the axis of the width direction of the main support frame. A ratchet plate and a mounting sleeve are sequentially sleeved on the pivot. Both ratchet parts are located at the side ends of the ratchet plate. The mounting sleeve is anti-rotation mounted relative to the main support frame. The support structure also includes a tension spring, one end of which is connected to the mounting sleeve and the other end is connected to the ratchet plate. The switching structure includes: A transmission ring is disposed on the ratchet sleeve plate; and, The switching lever has one end located on the rotating shaft and the other end passing through the transmission ring.

9. A vehicle, characterized in that, Includes the leg structure as described in any one of claims 1 to 8.

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