Vertical outriggers, outrigger assemblies, and operating machinery

Abstract

The present invention relates to the technical field of engineering machinery, and provides a vertical support leg, a support leg assembly, and an operating machine. The vertical support leg includes a vertical telescopic member having a fixed portion and a movable portion. The fixed portion is connected to the horizontal support leg, and the movable portion is movable vertically relative to the fixed portion. The flip leg is rotatably connected to the movable portion about a horizontal axis and is rotatable between a supporting position and a stowed position. In the supporting position, the flip leg extends vertically and supports the movable portion. In the stowed position, the extension direction of the flip leg forms an angle with the vertical direction. This arrangement solves the problem of low ground clearance of the vertical legs in the retracted state in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a vertical support leg, a support leg assembly and an operating machine. Background Art

[0002] Construction machinery, such as cranes, is typically equipped with outriggers to provide support and stability during lifting operations. These outriggers typically consist of horizontal and vertical legs. In existing systems, the vertical legs are typically fixed to the ends of the horizontal legs. Even when the vertical legs are retracted, the clearance between the lower ends of the vertical legs and the ground is minimal. When traveling over potholes, the outriggers at the lower ends of the vertical legs can collide with the ground, potentially damaging the legs or causing deformation and failure of the outriggers, potentially leading to accidents.

[0003] Therefore, how to solve the problem of small ground clearance of the vertical legs in the retracted state in the prior art has become an important technical problem to be solved by those skilled in the art. Summary of the Invention

[0004] The present invention provides a vertical support leg, a support leg assembly and an operating machine, which are used to solve the defect of small ground clearance of the vertical support leg in the retracted state in the prior art.

[0005] The present invention provides a vertical support leg, comprising:

[0006] A vertical telescopic member having a fixed portion and a movable portion, wherein the fixed portion is used to connect with the horizontal leg, and the movable portion can move in a vertical direction relative to the fixed portion;

[0007] The flip leg is connected to the movable part so as to be rotatable around a horizontal axis. The flip leg can be rotated between a supporting position and a storage position. In the supporting position, the flip leg extends in a vertical direction and can support the movable part. In the storage position, the extension direction of the flip leg has an angle with the vertical direction.

[0008] A vertical support leg provided by the present invention further includes:

[0009] The guide structure is configured to drive the flip leg to rotate toward the storage position when the vertical telescopic member is contracted, and to allow the flip leg to rotate toward the support position when the vertical telescopic member is extended.

[0010] According to a vertical support leg provided by the present invention, the guide structure includes a guide fillet arranged at the first end of the flip leg, and the guide fillet is configured to be able to abut against the lower surface of the horizontal support leg or the lower surface of the fixed part. The distance between the rotation axis of the flip leg relative to the movable part and the guide fillet gradually decreases in the direction from the first end to the second end of the flip leg.

[0011] A vertical support leg provided by the present invention further includes:

[0012] A guide seat is arranged on the movable part so as to slide back and forth in the vertical direction. One end of the guide seat is used to abut the horizontal leg or the fixed part, and the other end is used to abut the flip leg so that there is a gap between the horizontal leg or the fixed part and the flip leg.

[0013] According to a vertical leg provided by the present invention, the guide structure further includes a slide groove, the slide groove is provided on the flip leg, the first end of the flip leg is rotatably connected to the moving part via a connecting shaft, and the connecting shaft can slide in cooperation with the slide groove;

[0014] There is an angle between the extension direction of the slide groove and the extension direction of the flip leg and the width direction of the flip leg. The connecting shaft can slide between a first position and a second position in the slide groove. In the first position, the axis of the flip leg can coincide with the axis of the vertical telescopic member.

[0015] According to a vertical leg provided by the present invention, the moving portion extends into the first end of the flip leg, and a supporting portion capable of supporting the moving portion is provided in the flip leg;

[0016] When the connecting shaft is located at the first position, the moving portion is supported on the supporting portion.

[0017] According to a vertical support leg provided by the present invention, an expansion slot and a positioning slot are respectively provided at both ends of the slide slot.

[0018] The extending direction of the expansion slot and the extending direction of the positioning slot are both consistent with the extending direction of the flip leg.

[0019] According to a vertical leg provided by the present invention, the rotation axis of the flip leg relative to the moving portion is perpendicular to the extension direction of the horizontal leg;

[0020] And / or, the guide structures are provided in two groups, and the two groups of guide structures are distributed on two opposite sides of the flip leg.

[0021] The present invention also provides a leg assembly, comprising a horizontal leg and a vertical leg, wherein the vertical leg is arranged at one end of the horizontal leg, and the vertical leg is the vertical leg mentioned above.

[0022] The present invention also provides an operating machine, comprising an operating machine body and a leg assembly, wherein the leg assembly is arranged on the operating machine body, and the leg assembly is the above-mentioned leg assembly.

[0023] The vertical support leg provided by the present invention includes a vertical telescopic member and a flip support leg. The movable portion of the vertical telescopic member can move relative to the fixed portion in the vertical direction. The flip support leg can be connected to the movable portion by rotating around a horizontal axis, and the flip support leg can rotate between a support position and a storage position. When the flip support leg rotates to the support position, the flip support leg extends in the vertical direction and can support the movable portion. When the flip support leg rotates to the storage position, the extension direction of the flip support leg forms an angle with the vertical direction. When the vertical telescopic member contracts, the movable portion drives the flip support leg to move upward, increasing the height of the flip support leg as a whole. At the same time, the flip support leg rotates toward the storage position, reducing the length of the flip support leg in the vertical direction, thereby increasing the distance between the lower end of the flip support leg and the ground, solving the problem of small ground clearance of the vertical leg in the retracted state in the prior art.

[0024] Furthermore, the leg assembly provided by the present invention has the vertical legs as described above, and thus also has the various advantages as described above.

[0025] Furthermore, the working machine provided by the present invention has the above-mentioned outrigger assembly and thus also has the above-mentioned various advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a structural schematic diagram of the vertical support leg provided by the present invention;

[0028] Figure 2 is a side view of a leg assembly with vertical legs provided by the present invention;

[0029] Figure 3 It is a schematic structural diagram of the vertical support legs provided by the present invention in a retracted state;

[0030] Figure 4It is a schematic structural diagram of the vertical support leg provided by the present invention when the support leg is flipped and rotated to the supporting position;

[0031] Figure 5 It is a structural schematic diagram of the vertical legs provided by the present invention in a fully extended state.

[0032] Reference numerals:

[0033] 1: Fixed part; 2: Moving part; 3: Horizontal support leg; 4: Flip support leg; 5: Connecting shaft; 6: Guide fillet; 7: Guide seat; 8: Slide groove; 9: Support part; 10: Expansion slot; 11: Positioning slot. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] The following combination Figures 1 to 5 The vertical legs of the present invention are described.

[0036] like Figures 1 to 5 As shown, the vertical support leg provided by the embodiment of the present invention includes a vertical telescopic member and a flip support leg 4.

[0037] Specifically, the vertical telescopic member is mounted on the horizontal leg 3 and extends vertically. It comprises a fixed portion 1 and a movable portion 2. The fixed portion 1 is connected to one end of the horizontal leg 3. During telescopic movement, the movable portion 2 is able to move vertically up and down relative to the fixed portion 1.

[0038] Specifically, the vertical telescopic member can be a hydraulic cylinder, with its axis arranged vertically and perpendicular to the axis of the horizontal leg 3. The cylinder barrel of the hydraulic cylinder can serve as the fixed portion 1, fixedly connected to the horizontal leg 3. The piston rod of the hydraulic cylinder can serve as the movable portion 2, capable of moving up and down relative to the cylinder barrel.

[0039] The flip leg 4 is connected to the moving part 2 and can rotate relative to the moving part 2 around a horizontal axis.

[0040] The flip leg 4 can rotate between a supporting position and a storage position. When the flip leg 4 rotates to the supporting position, the flip leg 4 extends in a vertical direction, and the flip leg 4 can support the moving part 2, so that the vertical leg cooperates with the horizontal leg 3 to support the operating machinery.

[0041] When the flip leg 4 rotates to the storage position, the extension direction of the flip leg 4 forms an angle with the vertical direction, and the length of the flip leg 4 along the vertical direction is smaller than the length of the flip leg 4 in its own extension direction.

[0042] When the vertical telescopic member is retracted, the moving portion 2 drives the flip leg 4 upward, increasing the height of the flip leg 4. At the same time, the flip leg 4 rotates toward the stowed position, reducing its vertical length, thereby increasing the distance between the lower end of the flip leg and the ground. This solves the problem of low ground clearance when the vertical legs are retracted in the prior art.

[0043] It should be noted that compared with the prior art, when the support height requirements for the vertical legs when working and the ground clearance requirements when the vertical legs are retracted are the same, the vertical legs in the embodiment of the present invention have relatively low requirements for the telescopic stroke of the vertical telescopic parts, that is, the embodiment of the present invention can reduce the stroke requirements for the hydraulic cylinder, thereby reducing the cost of the vertical legs.

[0044] In an embodiment of the present invention, the vertical leg also includes a guide structure. When the vertical telescopic member is retracted, the guide structure can drive the flip leg 4 to rotate toward the storage position, and when the vertical telescopic member is extended, the guide structure can allow the flip leg 4 to rotate toward the support position.

[0045] When the vertical legs need to be retracted, the vertical telescopic member is retracted, and the moving portion 2 drives the flip legs 4 to move upward, thereby increasing the height of the flip legs 4. At the same time, the flip legs 4 rotate around the horizontal axis to the storage position under the action of the guide structure.

[0046] When the vertical legs need to work, the vertical telescopic member is extended, the moving portion 2 moves downward relative to the fixed portion 1, and the flip leg 4 moves downward with the moving portion 2. At the same time, the flip leg 4 rotates toward the supporting position until the flip leg 4 extends in the vertical direction.

[0047] With such arrangement, when the vertical telescopic member contracts, the guide structure can drive the flip leg 4 to flip, thus avoiding the provision of an additional driving member, resulting in a simple structure and low cost.

[0048] The first end of the flip leg 4 is rotatably connected to the moving part 2 via a connecting shaft 5 , and the connecting shaft 5 extends in the horizontal direction.

[0049] The guide structure includes a guide fillet 6 , which is provided at the first end of the flip leg 4 , and the guide fillet 6 can abut against the lower surface of the horizontal leg 3 or the lower surface of the fixing portion 1 .

[0050] The distance between the rotation axis of the flip leg 4 relative to the movable portion 2 and the guide radius 6 gradually decreases from the first end to the second end of the flip leg 4. When the flip leg 4 is in the supporting position, the position on the guide radius 6 at the greatest distance from the rotation axis of the flip leg 4 relative to the movable portion 2 is located between the connecting shaft 5 and the fixed portion 1.

[0051] As the vertical telescopic member contracts, the moving portion 2 drives the connecting shaft 5 and the tilting leg 4 upward, gradually reducing the distance between the end surface of the first end of the tilting leg 4 and the lower surface of the horizontal leg 3 and the lower surface of the fixed portion 1. When the moving portion 2 moves upward until the guide radius 6 on the tilting leg 4 contacts the lower surface of the horizontal leg 3, or when the moving portion 2 moves upward until the guide radius 6 on the tilting leg 4 contacts the lower surface of the fixed portion 1, to accommodate the gradually decreasing distance between the moving portion 2 and the connecting shaft 5 and the fixed portion 1, the tilting leg 4 rotates under the squeezing action between the moving portion 2 and the fixed portion 1, so that the position on the guide radius 6 that is closest to the tilting leg 4 relative to the rotation axis of the moving portion 2 is located between the connecting shaft 5 and the fixed portion 1.

[0052] It should be noted that when the vertical leg needs to work, the vertical telescopic part extends, the moving part 2 moves downward, and the distance between the moving part 2 and the lower surface of the horizontal leg 3 or the lower surface of the fixed part 1 gradually increases, so that the flip leg 4 can rotate under the action of its own gravity.

[0053] Under the restrictive effect of the lower surface of the horizontal leg 3 or the lower surface of the fixed part 1, the flip leg 4 slowly rotates to the supporting position. The rotation process of the flip leg 4 is smooth, which can avoid vibration and impact caused by the instantaneous rotation of the flip leg 4 to the supporting position.

[0054] The guide structure in this embodiment further includes a guide seat 7, which is slidably disposed in a vertical direction on the movable portion 2. Specifically, the guide seat 7 can be configured as an annular structure so that the guide seat 7 is sleeved on the piston rod of the hydraulic cylinder, and a gap is provided between the guide seat 7 and the piston rod to ensure that the guide seat 7 can slide smoothly relative to the piston rod, thereby reducing wear on the piston rod.

[0055] The guide seat 7 is located between the flip leg 4 and the horizontal leg 3. One end of the guide seat 7 can abut the horizontal leg 3 or the fixed portion 1, and the other end can abut the flip leg 4, so that a gap exists between the horizontal leg 3 or the fixed portion 1 and the flip leg 4. Moreover, the guide seat 7 contacts the flip leg 4 instead of the horizontal leg 3 or the fixed portion 1, which can reduce wear on the horizontal leg 3 or the fixed portion 1 when the flip leg 4 rotates.

[0056] The connection between the tilting leg 4 and the moving part 2 can be achieved by hingedly connecting the first end of the tilting leg 4 to the moving part 2 using the aforementioned connecting shaft 5. The connecting shaft 5 is fixed on the tilting leg 4 and the moving part 2. When the tilting leg 4 rotates to the supporting position, the tilting leg 4 supports the moving part 2 via the connecting shaft 5. It should be noted that the strength of the connecting shaft 5 must be ensured to ensure sufficient load-bearing capacity.

[0057] In the embodiment of the present invention, the guide structure further includes a slide groove 8 , which is provided on the flip leg 4 , and the connecting shaft 5 is provided on the moving portion 2 and slidably cooperates with the slide groove 8 .

[0058] The extension direction of the chute 8 forms an angle with both the extension direction of the tilt leg 4 and the width direction of the tilt leg 4. When the tilt leg 4 rotates to the supporting position, the chute 8 extends in an inclined direction. During the relative displacement of the connecting shaft 5 along the chute 8, the tilt leg 4 simultaneously moves horizontally and vertically relative to the movable portion 2.

[0059] The connecting shaft 5 can slide between the first position and the second position in the slide groove 8. When the connecting shaft 5 slides to the first position in the slide groove 8, the axis of the flip leg 4 can coincide with the axis of the vertical telescopic part, which can ensure the stable support of the flip leg 4 to the vertical telescopic part and improve the stability of the vertical leg.

[0060] When the connecting shaft 5 slides to the second position in the chute 8, it is necessary to ensure that the distance between the connecting shaft 5 and the guide radius 6 gradually decreases in the direction from the first end to the second end of the flip leg 4. Specifically, the second position of the chute 8 can be staggered with the center of the guide radius 6, so that the second position of the chute 8 is located on the side where the center of the guide radius 6 is away from the first end of the flip leg 4. When the vertical leg needs to be retracted, it is necessary to slide the connecting shaft 5 to the second position of the chute 8 after the vertical telescopic member is retracted until the lower end of the flip leg 4 is off the ground, and then continue to retract the vertical telescopic member to ensure that the guide seat 7 can drive the flip leg 4 to rotate when interacting with the guide radius 6.

[0061] The second position of the chute 8 is a position on the end surface of the chute 8 close to the first end of the flip leg 4, and the first position of the chute 8 is a position on the end surface of the chute 8 away from the first end of the flip leg 4. During the vertical leg extension process, the vertical telescopic member extends, the connecting shaft 5 is located in the second position of the chute 8, and the flip leg 4 gradually rotates until the flip leg 4 extends in the vertical direction.

[0062] The vertical telescopic member continues to extend, and the flip leg 4 moves downward along with the moving portion 2, and the end surface of the second end of the flip leg 4 contacts the ground.

[0063] After the end face of the second end of the flip leg 4 contacts the ground, the vertical telescopic member continues to extend, and the connecting shaft 5 moves downward with the moving part 2. Since the slide groove 8 is inclined, when the connecting shaft 5 moves downward relative to the slide groove 8, the connecting shaft 5 will generate a component force in the horizontal direction on the slide groove 8. This component force will drive the flip leg 4 to move in the horizontal direction until the connecting shaft 5 slides to the first position of the slide groove 8, and the axis of the flip leg 4 coincides with the axis of the vertical telescopic member.

[0064] With this arrangement, the flip legs 4 and the moving part 2 can be relatively displaced in the horizontal direction without manpower or an additional driving device, which is convenient to operate, saves manpower, and reduces the labor intensity of operators.

[0065] In an embodiment of the present invention, the movable part 2 extends into the first end of the flip leg 4, and a support part 9 is provided inside the flip leg 4. When the flip leg 4 is rotated to extend in the vertical direction, the support part 9 is located below the movable part 2 and can support the movable part 2.

[0066] In this arrangement, the vertical telescopic member is supported by the support portion 9 of the flip leg 4, avoiding stress on the connecting shaft 5 and the slide groove 8. The connecting shaft 5 and the slide groove 8 only serve as rotational connection and sliding guide, which is beneficial to reducing the strength requirement for the connecting shaft 5.

[0067] Specifically, an expansion slot 10 and a positioning slot 11 are provided at the end of the slide slot 8. The extension direction of the expansion slot 10 and the positioning slot 11 is consistent with the extension direction of the flip leg 4. Figure 3 .

[0068] The expansion slot 10 is connected to the first position of the slide slot 8. When the movable part 2 is supported on the support part 9 of the flip leg 4, the connecting shaft 5 can be located in the expansion slot 10. At this time, the expansion slot 10 also has a positioning function, which can limit the relative position between the flip leg 4 and the movable part 2 in the horizontal direction to ensure the reliability of the vertical leg.

[0069] The positioning groove 11 is connected to the second position of the slide groove 8. When the flip leg 4 rotates around the connecting shaft 5, the connecting shaft 5 is located in the positioning groove 11, which can ensure the smooth rotation of the flip leg 4. Moreover, when the flip leg 4 rotates to the storage position, the interaction between the connecting shaft 5 and the positioning groove 11 can prevent the flip leg 4 from moving up and down, thus having a limiting effect.

[0070] In the embodiment of the present invention, two sets of the above-mentioned guide structures are provided and are distributed on opposite sides of the flip leg 4 to ensure smooth rotation or movement of the flip leg 4 relative to the vertical telescopic member and avoid jamming.

[0071] In an embodiment of the present invention, the rotation axis of the above-mentioned flip leg 4 relative to the moving part 2 is perpendicular to the extension direction of the horizontal leg 3, so that the flip leg 4 and the horizontal leg 3 are located in the same plane, and the flip leg 4 rotates in the plane, which is beneficial to reducing the space required for the vertical leg to extend and retract.

[0072] Reference Figures 3 to 5 The specific extension process of the vertical legs provided by the embodiment of the present invention is as follows:

[0073] When the vertical legs are in the retracted state, the vertical telescopic member is in the contracted state, the connecting shaft 5 is located at the rightmost end of the chute 8, and the position on the guide fillet 6 with the smallest distance from the rightmost end of the chute 8 is located between the connecting shaft 5 and the guide seat 7. Figure 3 As shown;

[0074] When the vertical legs need to be unfolded, the moving part 2 of the vertical telescopic member gradually moves downward, the flip leg 4 and the guide seat 7 move downward with the moving part 2, the distance between the guide seat 7 and the horizontal leg 3 or the fixed part 1 gradually increases, the amount of activity of the guide seat 7 in the vertical direction gradually increases, and the flip leg 4 will gradually rotate counterclockwise under the action of its own gravity until the position where the distance between the guide fillet 6 and the upper end of the slide groove 8 is the largest is located between the connecting shaft 5 and the guide seat 7, and the flip leg 4 extends in the vertical direction. Figure 4 As shown;

[0075] The moving portion 2 of the vertical telescopic member continues to move downward, and the flip leg 4 continues to move downward along with the moving portion 2 until the lower end of the flip leg 4 contacts the ground;

[0076] The moving portion 2 of the vertical telescopic member continues to move downward, and the tilting leg 4 is supported on the ground. The moving portion 2 drives the connecting shaft 5 to move downward relative to the tilting leg 4 and the chute 8. The connecting shaft 5 generates a horizontal left component force on the chute 8, which drives the tilting leg 4 to move leftward until the connecting shaft 5 moves to the rightmost end of the chute 8. At this time, the axis of the tilting leg 4 coincides with the axis of the vertical telescopic member.

[0077] The moving part 2 of the vertical telescopic member continues to move downward, so that the moving part 2 contacts the supporting part 9 on the flip leg 4, so that the flip leg 4 supports the vertical telescopic member. Figure 5 As shown. So far, the stretching action of the vertical legs has been completed. At this time, there is a spacing between the connecting shaft 5 and the lower end of the chute 8, which can avoid the connecting shaft 5 from bearing.

[0078] When the vertical legs need to be retracted, the retraction process of the vertical legs is the opposite of the above deployment process, as follows:

[0079] The moving part 2 of the vertical telescopic member gradually moves upward, and the flip leg 4 is temporarily supported on the ground under the action of its own gravity. The connecting shaft 5 moves upward with the moving part 2 relative to the flip leg 4 and the chute 8. The connecting shaft 5 generates a horizontal rightward component force on the chute 8, which drives the flip leg 4 to move rightward until the connecting shaft 5 moves to the uppermost end of the chute 8. At this time, the distance between the connecting shaft 5 and the guide fillet 6 gradually decreases from top to bottom;

[0080] The moving part 2 of the vertical telescopic member continues to move upward, and the moving part 2 drives the guide seat 7 and the flip leg 4 to move upward until the upper end of the guide seat 7 contacts the horizontal leg 3 or the fixed part 1. Figure 4 As shown;

[0081] The moving part 2 of the vertical telescopic member continues to move upward, and the connecting shaft 5 moves upward with the moving part 2. The distance between the connecting shaft 5 and the guide seat 7 is reduced. The force of the guide seat 7 on the guide fillet 6 causes the flip leg 4 to rotate clockwise until the position on the guide fillet 6 where the distance from the connecting shaft 5 is the smallest is located between the connecting shaft 5 and the guide seat 7. Figure 3 At this point, the retraction of the vertical legs is completed.

[0082] In the embodiment of the present invention, the vertical telescopic member is fixed in position and does not need to be rotated. Only the tilting leg 4 needs to be rotated, and the weight of the rotating part is relatively small. The structural design is ingenious. For the rotation of the tilting leg 4, no special drive member is required. The structure is simple, which helps to reduce the cost of the vertical legs.

[0083] Furthermore, whether the vertical legs are retracted or extended, as long as the movable portion 2 of the vertical telescopic member remains stationary, the stability of the tilting legs 4 is ensured, ensuring a reliable structure. This prevents the vertical legs from accidentally failing to stop and automatically tilting and falling during vehicle travel, potentially causing damage to vehicles and pedestrians.

[0084] On the other hand, an embodiment of the present invention further provides a leg assembly, comprising a horizontal leg 3 and a vertical leg provided in any of the above embodiments, wherein the vertical leg is provided at one end of the horizontal leg 3. When the vertical leg in the above embodiment is retracted, it increases the height of the flip leg 4 and reduces the length of the flip leg 4 in the vertical direction, thereby increasing the distance between the lower end of the flip leg 4 and the ground, solving the problem of small ground clearance of the vertical leg in the retracted state in the prior art. Therefore, the leg assembly in this embodiment also has the advantage of large ground clearance when retracted. The derivation process of the beneficial effects of the leg assembly in the embodiment of the present invention is generally similar to the derivation process of the beneficial effects of the above-mentioned vertical leg, so it will not be repeated here.

[0085] In yet another aspect, an embodiment of the present invention further provides a work machine comprising a work machine body and the outrigger assembly of the above-described embodiment, the outrigger assembly being mounted on the work machine body. The work machine of this embodiment possesses all the advantages of the above-described outrigger assembly and will not be further elaborated upon here. The derivation process for the beneficial effects of the work machine of this embodiment of the present invention is generally similar to that for the above-described outrigger assembly and will not be further elaborated upon here.

[0086] The working machine in this embodiment may be a crane or the like.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A vertical support leg, characterized in that: include: A vertical telescopic member having a fixed portion and a movable portion, wherein the fixed portion is used to connect with the horizontal leg, and the movable portion can move in a vertical direction relative to the fixed portion; a flip leg rotatably connected to the movable portion about a horizontal axis, the flip leg being rotatable between a supporting position and a storage position, wherein in the supporting position, the flip leg extends in a vertical direction and is capable of supporting the movable portion, and in the storage position, the extension direction of the flip leg forms an angle with the vertical direction; a guide structure configured to drive the flip leg to rotate toward the storage position when the vertical telescopic member is retracted, and to allow the flip leg to rotate toward the support position when the vertical telescopic member is extended, the guide structure comprising a guide fillet provided at the first end of the flip leg, the guide fillet being configured to abut against the lower surface of the horizontal leg or the lower surface of the fixed portion, the distance between the rotation axis of the flip leg relative to the movable portion and the guide fillet gradually decreasing in a direction from the first end to the second end of the flip leg; a guide seat, which is slidably disposed on the movable portion in a vertical direction, one end of the guide seat being used to abut against the horizontal leg or the fixed portion, and the other end being used to abut against the flip leg, so that a gap exists between the horizontal leg or the fixed portion and the flip leg; The tilting leg is provided with a slide groove, and the first end of the tilting leg is rotatably connected to the moving part via a connecting shaft, and the connecting shaft can slide in cooperation with the slide groove; an extension direction of the slide groove and an extension direction of the tilting leg and a width direction of the tilting leg all form an included angle, and the connecting shaft can slide between a first position and a second position in the slide groove, and in the first position, the axis of the tilting leg can coincide with the axis of the vertical telescopic member; The movable portion extends into the first end of the flip leg. A support portion capable of supporting the movable portion is provided in the flip leg. When the connecting shaft is located at the first position, the movable portion is supported on the support portion.

2. The vertical support leg according to claim 1, characterized in that: An expansion slot and a positioning slot are respectively extended from both ends of the slide slot, and the extension direction of the expansion slot and the extension direction of the positioning slot are consistent with the extension direction of the flip leg.

3. The vertical support leg according to claim 1, characterized in that: The rotation axis of the flip leg relative to the moving part is perpendicular to the extension direction of the horizontal leg; And / or, the guide structures are provided in two groups, and the two groups of guide structures are distributed on two opposite sides of the flip leg.

4. A leg assembly, characterized in that: It comprises a horizontal support leg and a vertical support leg, wherein the vertical support leg is arranged at one end of the horizontal support leg, and the vertical support leg is the vertical support leg according to any one of claims 1 to 3.

5. A working machine, characterized in that: The invention comprises a working machine body and a leg assembly, wherein the leg assembly is arranged on the working machine body and the leg assembly is the leg assembly as claimed in claim 4.

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