Auxiliary supporting leg for engineering machinery

Abstract

The utility model relates to the technical field of engineering machinery, in particular to an auxiliary supporting leg for engineering machinery, which comprises an auxiliary connecting rod and a supporting rod connected with the auxiliary connecting rod, and is characterized in that the auxiliary connecting rod comprises a mounting seat connected with the engineering machinery and a rotating rod rotationally connected with the mounting seat; the inner end of the rotating rod is connected with the mounting seat, the outer end of the rotating rod is connected with the supporting rod, and the supporting rod rotates relative to the mounting seat to adjust the position of the supporting rod. According to the auxiliary supporting leg, when the engineering machinery needs to be transferred to a working position, the supporting rod can be moved upwards at the outer end of the rotating rod, so that the lower end of the supporting rod is separated from the ground, the rotating rod is tightly attached to the side wall of the engineering machinery, and the width of the engineering machinery is in a minimum state; the probability that the auxiliary supporting leg collides with an object on a path is reduced, and the service life of the auxiliary supporting leg is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an auxiliary outrigger used for engineering machinery. Background Art

[0002] Engineering machinery is an important part of the equipment industry. Generally speaking, it refers to the mechanical equipment necessary for comprehensive mechanized construction projects required for earthwork construction, road construction and maintenance, mobile lifting and loading and unloading operations, and various construction projects. Engineering machinery includes excavators, lifting machinery, and pile-driving machinery. When the engineering machinery is performing fixed-point work, in order to increase the stability of the engineering machinery, four auxiliary legs are installed on both sides of the engineering machinery (such as rotary drilling rigs, crawler cranes, etc.). The auxiliary legs currently on the market are composed of a fixed rod, a telescopic rod, and a support rod. One end of the fixed rod is fixed to the side wall of the engineering machinery, and the telescopic rod is inserted and slid into the other end of the fixed rod. The support rod is threaded and vertically rotated to connect to the outer end of the telescopic rod. When working, the support rod is used to provide auxiliary support for the engineering machinery to improve the stability of the engineering machinery. When the engineering machinery needs to transfer its working position, the support rod is first rotated upward to make the bottom of the support rod leave the ground, and then the telescopic rod is inserted into the fixed rod, so that the overall width of the engineering machinery equipped with the auxiliary support leg is reduced to facilitate the movement of the engineering machinery. However, in the above-mentioned prior art, since the fixed rod in the auxiliary support leg is fixedly installed and protrudes from one side of the engineering machinery and cannot be retracted, the auxiliary support leg is still prone to collision with obstacles on the travel path, which not only reduces the passability of the engineering machinery, but also easily causes the auxiliary support leg to be damaged.

[0003] Therefore, it is necessary to design an auxiliary support leg for engineering machinery that is convenient for the movement of engineering machinery and has a good supporting effect. Utility Model Content

[0004] The utility model provides an auxiliary outrigger for engineering machinery, aiming to solve one or more of the above problems and other potential problems.

[0005] The utility model provides an auxiliary support leg for engineering machinery, comprising an auxiliary connecting rod and a support rod connected to the auxiliary connecting rod, characterized in that the auxiliary connecting rod comprises a mounting seat connected to the engineering machinery, a rotating rod rotatably connected to the mounting seat, the inner end of the rotating rod is connected to the mounting seat, the outer end of the rotating rod is connected to the support rod, and the position of the support rod is adjusted by rotating relative to the mounting seat.

[0006] The auxiliary support leg provided by the utility model can move the support rod upward at the outer end of the rotating rod when the engineering machinery needs to transfer the working position, so that the lower end of the support rod is separated from the ground, and the rotating rod is rotated to make the rotating rod close to the side wall of the engineering machinery, so that the width of the engineering machinery is minimized, thereby reducing the probability of the auxiliary support leg colliding with objects on the path when the engineering machinery moves, and improving the service life of the auxiliary support leg.

[0007] In some embodiments, the mounting seat includes an external stabilizing plate arranged at the connection between the mounting seat and the rotating rod and a fixing rod for fixing the position of the rotating rod on the mounting seat, the stabilizing plate is parallel to the surface formed by the rotation of the rotating rod, a plurality of stabilizing holes are provided on the stabilizing plate, the rotating rod is provided with fixing holes vertically corresponding to the stabilizing holes, and the fixing rod passes through the stabilizing holes and the fixing holes of the stabilizing plate to fix the position of the rotating rod on the mounting seat.

[0008] Furthermore, the utility model arranges a stabilizing plate and a fixing rod on the mounting seat to cooperate with the fixing rotating rod, and utilizes the fixing rod to connect the stabilizing hole and the fixing hole. The angle between the rotating rod and the mounting seat can be rotatably adjusted, and the position of the rotating rod is fixed, so that it is suitable for a variety of different engineering machinery, broadening the application scope of the auxiliary support leg.

[0009] In some embodiments, the mounting base also includes an external docking plate arranged on the mounting base connecting the mounting base and the rotating rod, the docking plate is parallel to the surface formed by the rotation of the rotating rod, and a plurality of docking holes are provided on the docking plate. The fixing rod passes through the stabilizing hole, the fixing hole and the docking hole of the docking plate to fix the position of the rotating rod on the mounting base.

[0010] Furthermore, the utility model also provides a docking plate and a stabilizing plate opposite to each other, and the fixing rod can be respectively plugged into the fixing hole, the stabilizing hole and the docking hole. The docking plate and the stabilizing plate jointly fix the position of the rotating rod on the mounting seat, which is more stable and firm and not easy to fall off.

[0011] In some embodiments, at least two stabilizing holes are provided on the stabilizing plate, including a first stabilizing hole and a second stabilizing hole. When the fixing rod passes through the first stabilizing hole and is plugged into the fixing hole, the angle between the rotating rod and the mounting seat is 180°. When the fixing rod passes through the second stabilizing hole and is plugged into the fixing hole, the angle between the rotating rod and the mounting seat is 90°.

[0012] In some embodiments, the stabilizing plate further includes a third stabilizing hole. When the fixing rod passes through the third stabilizing hole and is plugged into the fixing hole, the angle between the rotating rod and the mounting seat is 270°.

[0013] In some embodiments, at least two docking holes are provided on the docking plate, including a first docking hole vertically corresponding to the first stabilizing hole and a second docking hole vertically corresponding to the second stabilizing hole. When the fixing rod passes through the first stabilizing hole and the fixing hole is plugged into the first docking hole, the angle between the rotating rod and the mounting seat is 180°. When the fixing rod passes through the second stabilizing hole and the fixing hole is plugged into the second docking hole, the angle between the rotating rod and the mounting seat is 90°.

[0014] In some embodiments, the stabilizing plate further includes a third docking hole vertically corresponding to the third stabilizing hole. When the fixing rod passes through the third stabilizing hole and the fixing hole is plugged into the third docking hole, the angle between the rotating rod and the mounting seat is 270°.

[0015] Furthermore, in some embodiments, the stabilizing plate and the docking plate are provided with three pairs of corresponding stabilizing holes and docking holes, so that the fixing rod can fix the rotating rod at an angle of 90°, 180°, and 270° with the mounting seat. These three angles are common angles when the auxiliary support foot is used. When the angle between the rotating rod and the mounting seat is 90° or 270°, the rotating rod is close to the side wall of the engineering machinery, which is in a storage state, facilitating the movement of the engineering machinery; when the angle between the rotating rod and the mounting seat is 180°, the rotating rod is perpendicular to the side wall of the engineering machinery, which is in a working state, and can disperse the pressure on the bottom support structure of the engineering machinery. For example, the auxiliary support foot is set on the side wall of the crawler structure of the crawler crane. When the crawler crane is working at a fixed point, the rotating rod can be adjusted to a working state, and the base of the support rod is in contact with the ground, thereby reducing the pressure of the crane on the crawler structure and improving the stability of the crawler crane.

[0016] In some embodiments, a connecting hole is provided at the outer end of the rotating rod, the supporting rod is threadedly connected to the connecting hole, and an adjustment hole is opened at the upper end of the supporting rod, wherein a tool can be inserted into the adjustment hole to drive the supporting rod to rotate in the connecting hole.

[0017] Furthermore, the support rod is threadedly connected to the rotating rod and is provided with an adjustment hole to facilitate adjustment of the connection position of the support rod and the rotating rod.

[0018] In some embodiments, the lower end of the support rod is set to be spherical, and the lower end of the support rod is provided with a base. The lower end of the support rod is clamped with the base and can rotate within the base.

[0019] Furthermore, since the lower end of the support rod is spherical and can rotate in the base, the contact area between the lower end of the support rod and the base is increased, and the flexibility of the connection between the support rod and the base is improved, so the base and the support rod do not need to be vertical to support the support rod. When the auxiliary support foot is used on an uneven ground, the base can be adjusted according to the shape of the ground, reducing the wear on the support rod and further broadening the applicable scenarios.

[0020] In some embodiments, an assembly groove is provided inside the mounting seat, and the engineering machine is fixedly connected to the assembly groove via a connecting seat.

[0021] By implementing the above technical solution, the utility model has the following advantages:

[0022] 1. When the engineering machinery needs to transfer its working position, the auxiliary support leg provided by the utility model can move the support rod upward at the outer end of the rotating rod so that the lower end of the support rod is off the ground, and then the four rotating rods on both sides of the engineering machinery are rotated so that the rotating rods are close to the side walls of the engineering machinery, so that the width of the engineering machinery is minimized, thereby reducing the probability of the auxiliary support leg colliding with objects on the path when the engineering machinery moves, thereby increasing the service life of the auxiliary support leg.

[0023] 2. The utility model arranges a stabilizing plate and a fixing rod on the mounting seat to cooperate with the fixing rotating rod, and utilizes the fixing rod to connect the stabilizing hole and the fixing hole. The angle between the rotating rod and the mounting seat can be rotatably adjusted, and the position of the rotating rod is fixed, so that it is suitable for a variety of different engineering machinery, broadening the application scope of the auxiliary support leg.

[0024] 3. The utility model also provides a docking plate and a stabilizing plate opposite to each other, and the fixing rod can be respectively plugged into the fixing hole, the stabilizing hole and the docking hole. The docking plate and the stabilizing plate jointly fix the position of the rotating rod on the mounting seat, which is more stable and strong and not easy to fall off.

[0025] 4. The lower end of the support rod of the utility model is set to be spherical and can rotate in the base, which increases the contact area between the lower end of the support rod and the base, and improves the flexibility of the connection between the support rod and the base. Therefore, the base and the support rod do not need to be vertical to support the support rod. When the auxiliary support foot is used on an uneven ground, the base can be adjusted according to the shape of the ground, with good support effect, reducing the loss of the support rod, and further broadening the applicable scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 1 It is a structural schematic diagram of the auxiliary support leg of the utility model (the angle between the rotating rod and the mounting seat is 180°);

[0028] Figure 2 It is a structural schematic diagram of the auxiliary support leg of the utility model (the angle between the rotating rod and the mounting seat is 90°);

[0029] Figure 3 It is a cross-sectional schematic diagram of the auxiliary supporting leg of the utility model.

[0030] The symbols in the figure represent:

[0031] 1. Auxiliary connecting rod; 2. Support rod; 3. Rotating rod; 4. Mounting seat; 5. Assembly groove; 6. Stabilizing plate; 7. Docking plate; 8. First stabilizing hole; 9. Second stabilizing hole; 10. Third stabilizing hole; 11. First docking hole; 12. Second docking hole; 13. Third docking hole; 14. Fixing hole; 15. Fixing rod; 16. Adjustment hole; 17. Base; 18. Connecting hole. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below based on the accompanying drawings and specific embodiments.

[0033] It should be noted that the following implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.

[0034] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0035] This embodiment provides an auxiliary support leg for engineering machinery, such as Figures 1 to 3As shown, it includes an auxiliary connecting rod 1 and a support rod 2 connected to the auxiliary connecting rod 1, and is characterized in that the auxiliary connecting rod 1 includes a mounting seat 4 for connecting to engineering machinery, a rotating rod 3 rotatably connected to the mounting seat 4, the inner end of the rotating rod 3 is connected to the mounting seat 4, and the outer end of the rotating rod 3 is connected to the support rod 2, and the support rod 2 adjusts its position by rotating relative to the mounting seat 4.

[0036] When the engineering machinery needs to transfer its working position, the auxiliary support leg provided in this embodiment can move the support rod 2 upward at the outer end of the rotating rod 3 so that the lower end of the support rod 2 is off the ground. Then, the four rotating rods 3 on both sides of the engineering machinery are rotated so that the rotating rods 3 are close to the side walls of the engineering machinery, so that the width of the engineering machinery is minimized. This reduces the probability of the auxiliary support leg colliding with objects on the path when the engineering machinery moves, thereby increasing the service life of the auxiliary support leg.

[0037] In some embodiments, the mounting base 4 includes an external stabilizing plate 6 arranged at the connection between the mounting base 4 and the rotating rod 3 and a fixing rod 15 for fixing the position of the rotating rod 3 on the mounting base 4, the stabilizing plate 6 is parallel to the surface formed by the rotation of the rotating rod 3, a plurality of stabilizing holes are provided on the stabilizing plate 6, and a fixing hole 14 vertically corresponding to the stabilizing hole is provided on the rotating rod 3, and the fixing rod 15 passes through the stabilizing hole of the stabilizing plate 6 and the fixing hole 14 to fix the position of the rotating rod 3 on the mounting base 4.

[0038] Furthermore, in some embodiments, a stabilizing plate 6 is provided on the mounting seat 4 to cooperate with a fixing rod 15 to fix the rotating rod 3. The fixing rod 15 is used to connect the stabilizing hole and the fixing hole 14. The angle between the rotating rod 3 and the mounting seat 4 can be rotated to adjust the position of the rotating rod 3, so that it is suitable for a variety of different engineering machinery, thereby broadening the application scope of the auxiliary support leg.

[0039] In some embodiments, the mounting base 4 also includes an external docking plate 7 arranged at the connection between the mounting base 4 and the rotating rod 3, the docking plate 7 is parallel to the surface formed by the rotation of the rotating rod 3, and a plurality of docking holes are provided on the docking plate 7. The fixing rod 15 passes through the stabilizing hole of the stabilizing plate 6, the fixing hole 14 and the docking hole of the docking plate 7 to fix the position of the rotating rod 3 on the mounting base 4.

[0040] Furthermore, in the embodiment, a docking plate 7 is provided opposite to the stabilizing plate 6, and the fixing rod 15 can be respectively plugged into the fixing hole 14, the stabilizing hole, and the docking hole. The docking plate 7 and the stabilizing plate 6 jointly fix the position of the rotating rod 3 on the mounting seat 4, which is more stable and strong and not easy to fall off.

[0041] In some embodiments, at least two stabilizing holes are provided on the stabilizing plate 6, including a first stabilizing hole 8 and a second stabilizing hole 9. When the fixing rod 15 passes through the first stabilizing hole 8 and is plugged into the fixing hole 14, the angle between the rotating rod 3 and the mounting seat 4 is 180°. When the fixing rod 15 passes through the second stabilizing hole 9 and is plugged into the fixing hole 14, the angle between the rotating rod 3 and the mounting seat 4 is 90°.

[0042] In some embodiments, the stabilizing plate 6 further includes a third stabilizing hole 10. When the fixing rod 15 passes through the third stabilizing hole 10 and is plugged into the fixing hole 14, the angle between the rotating rod 3 and the mounting seat 4 is 270°.

[0043] In some embodiments, at least two docking holes are provided on the docking plate 7, including a first docking hole 11 vertically corresponding to the first stabilizing hole 8 and a second docking hole 12 vertically corresponding to the second stabilizing hole 9. When the fixing rod 15 passes through the first stabilizing hole 8 and the fixing hole 14 is plugged into the first docking hole 11, the angle between the rotating rod 3 and the mounting seat 4 is 180°. When the fixing rod 15 passes through the second stabilizing hole 9 and the fixing hole 14 is plugged into the second docking hole 12, the angle between the rotating rod 3 and the mounting seat 4 is 90°.

[0044] In some embodiments, the stabilizing plate 6 also includes a third docking hole 13 vertically corresponding to the third stabilizing hole 10. When the fixing rod 15 passes through the third stabilizing hole 10 and the fixing hole 14 is plugged into the third docking hole 13, the angle between the rotating rod 3 and the mounting seat 4 is 270°.

[0045] Furthermore, in some embodiments, the stabilizing plate 6 and the docking plate 7 are provided with three pairs of corresponding stabilizing holes and docking holes, so that the fixing rod 15 can fix the rotating rod 3 at an angle of 90°, 180°, and 270° with the mounting seat 4. These three angles are common angles when the auxiliary support legs are used.

[0046] When the fixing rod 15 is inserted into the second stabilizing hole 9, the fixing hole 14 and the second docking hole 12 in sequence, or the fixing rod 15 is inserted into the third stabilizing hole 10, the fixing hole 14 and the third docking hole 13 in sequence, when the angle between the rotating rod 3 and the mounting seat 4 is 90° or 270°, the rotating rod 3 is close to the side wall of the engineering machinery and is in a storage state, which facilitates the movement of the engineering machinery.

[0047] When the fixing rod 15 is inserted into the first stabilizing hole 8, the fixing hole 14 and the first docking hole 11 in sequence, the angle between the rotating rod 3 and the mounting seat 4 is 180°, and the rotating rod 3 is perpendicular to the side wall of the engineering machinery and is in a working state, which can disperse the pressure on the bottom support structure of the engineering machinery. For example, the auxiliary support foot is set on the side wall of the crawler structure of the crawler crane. When the crawler crane performs fixed-point work, the rotating rod 3 can be adjusted to a working state, and the base 17 of the support rod 2 is in contact with the ground, thereby reducing the pressure of the crane on the crawler structure and improving the stability of the crawler crane.

[0048] In some embodiments, a connecting hole 18 is provided at the outer end of the rotating rod 3, and the support rod 2 is threadedly connected to the connecting hole 18. An adjustment hole 16 is opened at the upper end of the support rod 2, and the adjustment hole 16 can be used for inserting a tool to drive the support rod 2 to rotate in the connecting hole 18.

[0049] Furthermore, the support rod 2 is threadedly connected to the rotating rod 3 and is provided with an adjustment hole 16. When the support rod 2 needs to be adjusted up and down, a tool is inserted into the adjustment hole 16 to facilitate adjustment of the connection position of the support rod 2 and the rotating rod 3.

[0050] In some embodiments, Figure 3 As shown, the lower end of the support rod 2 is set to be spherical, and the lower end of the support rod 2 is provided with a base 17. The upper end of the base 17 has a ball groove inside for the ball to rotate. The base 17 is disc-shaped, and the lower end of the support rod 2 is clamped with the base 17 and can rotate inside the base 17. Under the action of the base 17, the contact surface between the support rod 2 and the base 17 can be increased, reducing the damage to the support rod 2 during use.

[0051] Furthermore, since the lower end of the support rod 2 is spherical and can rotate in the base 17, the flexibility of the connection between the support rod 2 and the base 17 is improved, so the base 17 can support the support rod 2 without ensuring verticality. When the auxiliary support foot is used on an uneven ground, the base 17 can be adjusted according to the shape of the ground, reducing the loss of the support rod 2 and further broadening the applicable scenarios.

[0052] In some embodiments, an assembly groove 5 is provided inside the mounting seat 4, and the engineering machine is fixedly connected to the assembly groove 5 via a connecting seat.

[0053] Reference Figure 3The mounting seat 4 has an assembly groove 5 inside, and the assembly groove 5 can be inserted and installed into the connecting seat on the side wall of the engineering machinery. Two fixing bolts are evenly connected to the upper and lower side walls of the mounting seat 4. One end of the fixing bolt passes through the outer side wall of the mounting seat 4 and is inserted into the assembly groove 5, then passes through the connecting seat, and finally passes out from the other outer side wall of the mounting seat 4. When the mounting seat 4 is connected to the side wall of the engineering machinery, the connecting seat is inserted into the assembly groove 5 of the mounting seat 4, and then the inner end of the mounting seat 4 can be abutted against the side wall of the engineering machinery.

[0054] The applicant declares that the above is only a specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Technical personnel in the relevant technical field should understand that any changes or substitutions that can be easily thought of by technical personnel in the relevant technical field within the technical scope disclosed in the utility model fall within the protection scope and disclosure scope of the utility model.

Claims

1. An auxiliary outrigger for engineering machinery, comprising an auxiliary connecting rod (1) and a supporting rod (2) connected to the auxiliary connecting rod (1), characterized in that: The auxiliary connecting rod (1) comprises a mounting seat (4) for connecting to the engineering machinery, and a rotating rod (3) rotatably connected to the mounting seat (4); the inner end of the rotating rod (3) is connected to the mounting seat (4), and the outer end of the rotating rod (3) is connected to the support rod (2); the support rod (2) is rotatably moved relative to the mounting seat (4) to adjust the position of the support rod (2).

2. The auxiliary leg according to claim 1, characterized in that: The mounting seat (4) comprises an external stabilizing plate (6) arranged on the mounting seat (4) and connected to the rotating rod (3), and a fixing rod (15) used to fix the position of the rotating rod (3) on the mounting seat (4); the stabilizing plate (6) is parallel to a surface formed by the rotation of the rotating rod (3); a plurality of stabilizing holes are provided on the stabilizing plate (6); the rotating rod (3) is provided with fixing holes (14) vertically corresponding to the stabilizing holes; the fixing rod (15) passes through the stabilizing holes of the stabilizing plate (6) and the fixing holes (14) to fix the position of the rotating rod (3) on the mounting seat (4).

3. The auxiliary support leg according to claim 2, characterized in that: The mounting seat (4) further comprises a docking plate (7) arranged outside the mounting seat (4) and connected to the rotating rod (3); the docking plate (7) is parallel to a surface formed by the rotation of the rotating rod (3); a plurality of docking holes are provided on the docking plate (7); the fixing rod (15) passes through the stabilizing hole of the stabilizing plate (6), the fixing hole (14) and the docking hole of the docking plate (7) to fix the position of the rotating rod (3) on the mounting seat (4).

4. The auxiliary leg according to claim 3, characterized in that: At least two stabilizing holes are provided on the stabilizing plate (6), including a first stabilizing hole (8) and a second stabilizing hole (9); when the fixing rod (15) passes through the first stabilizing hole (8) and is plugged into the fixing hole (14), the angle between the rotating rod (3) and the mounting seat (4) is 180°; and when the fixing rod (15) passes through the second stabilizing hole (9) and is plugged into the fixing hole (14), the angle between the rotating rod (3) and the mounting seat (4) is 90°.

5. The auxiliary leg according to claim 4, characterized in that: The stabilizing plate (6) further comprises a third stabilizing hole (10), and when the fixing rod (15) passes through the third stabilizing hole (10) and is plugged into the fixing hole (14), the angle between the rotating rod (3) and the mounting seat (4) is 270°.

6. The auxiliary leg according to claim 5, characterized in that: At least two docking holes are provided on the docking plate (7), including a first docking hole (11) vertically corresponding to the first stabilizing hole (8) and a second docking hole (12) vertically corresponding to the second stabilizing hole (9); when the fixing rod (15) passes through the first stabilizing hole (8) and the fixing hole (14) is plugged into the first docking hole (11), the angle between the rotating rod (3) and the mounting seat (4) is 180°; when the fixing rod (15) passes through the second stabilizing hole (9) and the fixing hole (14) is plugged into the second docking hole (12), the angle between the rotating rod (3) and the mounting seat (4) is 90°.

7. The auxiliary leg according to claim 6, characterized in that: The stabilizing plate (6) further comprises a third docking hole (13) vertically corresponding to the third stabilizing hole (10); when the fixing rod (15) passes through the third stabilizing hole (10) and the fixing hole (14) is plugged into the third docking hole (13), the angle between the rotating rod (3) and the mounting seat (4) is 270°.

8. The auxiliary leg according to claim 1, characterized in that: The outer end of the rotating rod (3) is provided with a connecting hole (18), the supporting rod (2) is threadedly connected to the connecting hole (18), and the upper end of the supporting rod (2) is provided with an adjusting hole (16), wherein a tool can be inserted into the adjusting hole (16) to drive the supporting rod (2) to rotate in the connecting hole (18).

9. The auxiliary support leg according to claim 1, characterized in that: The lower end of the support rod (2) is configured to be spherical, and a base (17) is provided at the lower end of the support rod (2). The lower end of the support rod (2) is clamped with the base (17) and can rotate within the base (17).

10. The auxiliary leg according to claim 1, characterized in that: An assembly groove (5) is provided inside the mounting seat (4), and the engineering machinery is fixedly connected to the assembly groove (5) via a connecting seat.

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