An anti-overturning crane for highway construction

Abstract

The present invention relates to an anti-overturning crane for highway construction, which is applied in the field of highway construction and includes a crane body; a supporting structure, wherein the supporting structure is arranged in two groups, and the two groups of the supporting structures are respectively installed on both sides of the crane body, and the supporting structures are composed of two mounting base frames, two side support assemblies, a central support assembly and a driving mechanism; the two mounting base frames are fixedly installed at both ends of the outer wall of one side of the crane body. The present invention achieves the effect of increasing the supporting area of ​​the anti-overturning area, improves the traditional anti-overturning support method using four outrigger structures, avoids the problem of overturning when the ground area of ​​a certain outrigger structure collapses, and can adjust the supporting bottom plate to different areas at the bottom of the central support assembly, effectively providing a stronger supporting force for a certain side support assembly, and better stability performance.

Description

Technical Field

[0001] The invention relates to the field of highway construction, and in particular to an anti-overturning crane used for highway construction. Background Art

[0002] During the construction of highways, cranes play a vital role in the construction and lifting operations. However, during the lifting operations, the anti-overturning stability of the crane is a very important consideration. However, the factors that affect the overturning of the crane include: load and center of gravity position, wind speed and direction, ground conditions, operator skills and experience, etc. There are three main methods for checking the anti-overturning stability of the crane in the existing technology: moment method, stability coefficient method and rated lifting capacity calibrated according to the critical overturning load. These methods and concepts have become mature. Moreover, there is not much potential to be tapped in the existing technology to improve the weight and structure of the various structural parts of the crane. Therefore, to improve the anti-overturning ability of the crane, the four outrigger structures of the crane should be considered.

[0003] In order to improve the anti-overturning ability of the crane, a certain anti-overturning crane in the market adopts the method of adjusting the span of the outrigger structure, which has a certain market share. For example, the authorization announcement number CN103879911B discloses an engineering machinery outrigger, including an outrigger body, a cylinder barrel, a cylinder rod, an outrigger plate, and an auxiliary outrigger, which is hinged to the outrigger body; the auxiliary outrigger includes a bracket, a support rod and a support rod plate, the bracket is fixed on the cylinder rod, and can move up and down with the cylinder rod, one end of the support rod is hinged to the bracket, and the other end is hinged to the support rod plate; a limiting device is provided between the support rod and the bracket, which is used to limit the opening angle between the support rod and the bracket. The outrigger of the present invention can provide a larger supporting span for the engineering machinery when it is working without increasing the width of the engineering machinery body, thereby increasing the stability and anti-overturning performance of the engineering machinery.

[0004] Based on the above search, the anti-overturning crane in the prior art still cannot escape from the anti-overturning support structure using four leg structures by adjusting the support span of the leg. No matter how the support span of the leg is adjusted, its adjustment range is subject to the adjustment range of the cylinder, which makes it limited, and the support center of gravity of the entire support will eventually be close to the support center of gravity of the initial leg. When the ground area of ​​a leg structure collapses and other problems occur, overturning problems will still occur, and the stability of the crane cannot be effectively guaranteed. Therefore, an anti-overturning crane for highway construction is proposed to improve the above problems. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the anti-overturning support structure using four leg structures will still overturn when encountering problems such as collapse of the ground area of ​​a leg structure, and cannot effectively guarantee the stability of the crane.

[0006] To solve the above problems, the present invention provides an anti-overturning crane for highway construction, comprising a crane body;

[0007] Support structures, wherein the support structures are arranged in two groups, and the two groups of the support structures are respectively installed on both sides of the crane body, and the support structures are composed of two mounting base frames, two side support assemblies, a central support assembly and a driving mechanism;

[0008] The two mounting base frames are fixedly mounted on two ends of an outer wall of one side of the crane body;

[0009] The two side support assemblies are respectively arranged on one side of the interior of the two installation base frames;

[0010] The driving mechanism is arranged at one end of the two side support assemblies and inside the two installation base frames;

[0011] The central support assembly is arranged between the other ends of the two side support assemblies, and the central support assembly includes connecting plates fixed at the top and bottom of the other ends of the side support assemblies, and a rotating seat is rotatably connected between the two connecting plates through a pin shaft, a central frame beam is fixed at one end of the two rotating seats, and a central support rod is inserted inside the central frame beam, a central seat is fixed between the opposite ends of the two central support rods, a movable frame is fixed at the bottom of the central seat, and a second hydraulic cylinder is fixedly installed at both ends of the bottom inner wall of the movable frame, and a supporting bottom plate is fixedly installed at the piston end of the second hydraulic cylinder, and a second through hole for the piston end of the second hydraulic cylinder to pass through is opened at both ends of the bottom of the movable frame, and position-adjustable components are arranged on the two central frame beams and the two central support rods.

[0012] Furthermore, the position adjustable component includes first positioning holes equidistantly opened on the central frame beam, and second positioning holes equidistantly distributed are opened on the central support rod, positioning pins are inserted into the interior of the first positioning hole and the interior of the second positioning hole, a handle ring is fixed to the top of the positioning pin, and a handle frame is fixed to one side of the central seat.

[0013] Furthermore, side plates are fixed on both sides of the top ends of the movable frame, and sliding rollers distributed at equal distances are rotatably connected between two adjacent side plates through pins, and the sliding rollers are attached to the bottom of the central frame beam.

[0014] Furthermore, the side support assembly includes a first mounting hole opened at the top and bottom of the mounting base frame, and the inner walls of the first mounting holes are rotatably connected to the first mounting shaft through bearings, a first support beam is fixed between the first mounting shafts, the other end of the top and the other end of the bottom of the first support beam are rotatably connected to the traction frame through a pin shaft, and one end of the two traction frames is rotatably connected to the same second support beam through a pin shaft, a transmission gear is fixed to one end of the second support beam, and a driving gear is fixed to the other end of the first support beam, and the driving gear is meshed with the transmission gear, second mounting holes are opened on one side of the top and the bottom of the mounting base frame, and the inner walls of the second mounting holes are rotatably connected to the second mounting shaft through bearings, a traction plate is fixed between the second mounting shafts, one end of the traction plate is rotatably connected to the other end of the traction frame through a pin shaft, a hydraulic support structure is provided at the other end of the second support beam, and an auxiliary support assembly is provided between one side of the second support beam and one side of the first support beam.

[0015] Furthermore, the hydraulic support structure includes a support frame fixedly installed on the other end of the second support beam, and a first hydraulic cylinder is fixedly installed inside the support frame, a support plate is fixedly installed on the piston end of the first hydraulic cylinder, and a first through hole is opened at the bottom of the support frame for the piston end of the first hydraulic cylinder to pass through.

[0016] Furthermore, the auxiliary support assembly includes connecting grooves opened on one side of the first support beam and one side of the second support beam, and one end of the inner wall of the two connecting grooves is rotatably connected to a telescopic support frame and a U-shaped support frame through a pin shaft, and one end of the telescopic support frame is rotatably connected to one end of the U-shaped support frame through a pin shaft.

[0017] Furthermore, the driving mechanism includes a driving shaft rotatably connected between the inner walls at one end of the two mounting base frames, and worms are fixed on both sides of the outer walls of the driving shaft, a worm wheel is fixed at one end of the first support beam, and the worm wheel is meshed with the worm, and a driver for driving the driving shaft, worm and worm wheel to rotate is fixedly installed on the inner walls of the mounting base frames.

[0018] Furthermore, the installation base frame is provided with a plurality of installation base holes for fixed installation with the crane body.

[0019] Furthermore, the two connecting plates are respectively fixed to the top and bottom of the other end of the first support beam.

[0020] Furthermore, the bottom of the support plate and the bottom of the support base plate are both provided with anti-slip grooves distributed at equal distances.

[0021] In summary, after adopting the above structure, the present invention has the following advantages compared with the prior art:

[0022] 1. The above-mentioned mounting base frame, side support assembly, central support assembly, driving mechanism, auxiliary support assembly and crane body are used to form the entire anti-overturning crane equipment for highway construction. The side support assembly forms four leg structures of the anti-overturning crane equipment, so that the side support assembly can be simultaneously unfolded and closed on both sides of the crane body under the action of the driving mechanism, so that it can be freely retracted and convenient to use;

[0023] 2. By adopting the cooperation of the above-mentioned side support assembly, central support assembly and driving mechanism, the side support assembly and central support assembly can be simultaneously unfolded and closed by the driving mechanism, and the whole supporting structure can be unfolded on both sides of the crane body by utilizing the cooperation of the central support assembly and the side support assembly, so as to achieve the effect of increasing the supporting area of ​​the anti-overturning area, improve the traditional anti-overturning support method using four outrigger structures, avoid the problem of overturning when the ground area of ​​a certain outrigger structure collapses, effectively ensure the stability of the whole crane equipment, thereby providing a larger supporting area for the whole crane without changing the width of the crane body, and increasing the stability and anti-overturning performance of the crane;

[0024] 3. By using the combination of the above-mentioned central support assembly and the position adjustable assembly, the central strut can be adjusted to different positions of the central frame beam, and the central strut can be fixed under the fixing action of the first positioning hole, the second positioning hole and the positioning pin rod, so that the supporting base plate can be adjusted to different areas at the bottom of the central support assembly, thereby effectively providing stronger supporting force for a certain side support assembly and better stability performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of an anti-overturning crane used in highway construction;

[0026] Figure 2 The figure is a general diagram of the outrigger structure of an anti-overturning crane used in highway construction;

[0027] Figure 3 A top view of a leg structure of an anti-overturning crane used in highway construction;

[0028] Figure 4 A schematic diagram of the outrigger structure of an anti-overturning crane used in highway construction;

[0029] Figure 5 The schematic diagram of the driving mechanism structure of an anti-overturning crane used in highway construction;

[0030] Figure 6 A schematic diagram of a mounting base frame structure of an anti-overturning crane used in highway construction;

[0031] Figure 7 A schematic diagram of a side support assembly of an anti-overturning crane used in highway construction;

[0032] Figure 8 A schematic diagram of an auxiliary support assembly of an anti-overturning crane used in highway construction;

[0033] Fig. 9 A schematic diagram of the structure of a central support assembly of an anti-overturning crane used in highway construction;

[0034] Fig.10 A front view of an anti-overturning crane used in highway construction.

[0035] Description of the numbers in the figure:

[0036] 1. Crane body; 2. Support structure; 3. Mounting base frame; 4. Side support assembly; 401. First support beam; 402. Traction frame; 403. Second support beam; 404. Support frame; 405. First hydraulic cylinder; 406. Support plate; 407. Traction plate; 408. First mounting shaft; 409. Second mounting shaft; 410. Driving gear; 411. First mounting hole; 412. Second mounting hole; 413. Transmission gear; 5. Center support assembly; 501. Connecting plate; 502. Center frame beam; 503. Center Seat; 504, first positioning hole; 505, positioning pin rod; 506, handle frame; 507, support base plate; 508, center support rod; 509, second positioning hole; 510, handle ring; 511, rotating seat; 512, movable frame; 513, second hydraulic cylinder; 514, side plate; 515, sliding roller; 6, driving mechanism; 601, driving shaft; 602, driver; 603, worm; 604, worm wheel; 7, mounting base hole; 8, auxiliary support assembly; 801, connecting groove; 802, telescopic support frame; 803, U-shaped support frame. DETAILED DESCRIPTION

[0037] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0038] The first implementation method:

[0039] The present invention provides an anti-overturning crane for highway construction, see Figure 1-Figure 10 , comprising a crane body 1;

[0040] Support structure 2, the support structure 2 is provided in two groups, and the two groups of support structures 2 are respectively installed on both sides of the crane body 1, and the support structure 2 is composed of two mounting base frames 3, two side support components 4, a central support component 5 and a driving mechanism 6;

[0041] Two mounting base frames 3 are fixedly mounted on two ends of an outer wall of one side of the crane body 1;

[0042] The two lateral support components 4 are respectively arranged on one side of the interior of the two mounting base frames 3, and the lateral support components 4 include first mounting holes 411 opened at the top and bottom of the mounting base frames 3, and the inner walls of the first mounting holes 411 are rotatably connected to the first mounting shafts 408 through bearings, and the first support beams 401 are fixed between the first mounting shafts 408, and the other ends of the top and bottom of the first support beams 401 are rotatably connected to the traction frames 402 through pins, and one end of the two traction frames 402 is rotatably connected to the same second support beam 403 through pins, and a transmission gear 413 is fixed to one end of the second support beam 403, and a driving gear 410 is fixed to the other end of the first support beam 401, and the driving gear 410 is meshed with the transmission gear 413, and the top side and bottom side of the mounting base frame 3 are fixed to the first support beam 401. A second mounting hole 412 is provided on one side, and the inner wall of the second mounting hole 412 is rotatably connected with a second mounting shaft 409 through a bearing, a traction plate 407 is fixed between the second mounting shafts 409, one end of the traction plate 407 is rotatably connected with the other end of the traction frame 402 through a pin shaft, and a hydraulic support structure is provided at the other end of the second support beam 403, the hydraulic support structure includes a support frame 404 fixedly installed at the other end of the second support beam 403, and a first hydraulic cylinder 405 is fixedly installed inside the support frame 404, and a support plate 406 is fixedly installed at the piston end of the first hydraulic cylinder 405, and a first through hole for the piston end of the first hydraulic cylinder 405 to pass through is provided at the bottom of the support frame 404, and four outrigger structures of the anti-overturning crane equipment are formed through the side support assembly 4, which is convenient to use;

[0043] The driving mechanism 6 is arranged at one end of the two side support components 4 and inside the two installation base frames 3. The driving mechanism 6 includes a driving shaft 601 rotatably connected between the inner walls of one end of the two installation base frames 3, and worms 603 are fixed on both sides of the outer wall of the driving shaft 601. A worm wheel 604 is fixed at one end of the first support beam 401, and the worm wheel 604 is meshed with the worm 603. A driver 602 for driving the driving shaft 601, the worm 603 and the worm wheel 604 to rotate is fixedly installed on the inner wall of the installation base frame 3. The driving mechanism 6 is used to expand and close the support structure 2, so that it can be freely retracted and convenient to use.

[0044] The central support assembly 5 is arranged between the other ends of the two side support assemblies 4, and the central support assembly 5 includes a connecting plate 501 fixed at the top and bottom of the other end of the side support assembly 4, a rotating seat 511 is rotatably connected between the two connecting plates 501 through a pin shaft, a central frame beam 502 is fixed at one end of the two rotating seats 511, and a central support rod 508 is inserted inside the central frame beam 502, a central seat 503 is fixed between the opposite ends of the two central support rods 508, a movable frame 512 is fixed at the bottom of the central seat 503, and a second hydraulic cylinder 513 is fixedly installed at both ends of the bottom inner wall of the movable frame 512, and a supporting bottom plate 507 is fixedly installed at the piston end of the second hydraulic cylinder 513, and a second through hole for the piston end of the second hydraulic cylinder 513 to pass through is opened at both ends of the bottom of the movable frame 512, and position-adjustable components are arranged on the two central frame beams 502 and the two central support rods 508. Figure 2 , Figure 3 , Figure 4 , Figure 8 and Fig. 9 As shown, the entire supporting structure 2 is unfolded on both sides of the crane body 1 by using the cooperation of the central support assembly 5 and the side support assembly 4, which is convenient for simultaneously retracting and extending the central support assembly 5 and the side support assembly 4, thereby achieving the effect of increasing the support area of ​​the anti-overturning area, improving the traditional anti-overturning support method using four-leg structures, and avoiding the problem of overturning when the ground area of ​​a certain leg structure collapses.

[0045] In the present invention, the position adjustable component includes a first positioning hole 504 equidistantly provided on the center frame beam 502, and a second positioning hole 509 equidistantly provided on the center support rod 508, a positioning pin 505 is inserted into the first positioning hole 504 and the second positioning hole 509, a handle ring 510 is fixed to the top of the positioning pin 505, a handle frame 506 is fixed to one side of the center seat 503, side plates 514 are fixed to both sides of the top ends of the movable frame 512, and two adjacent side plates 514 are rotatably connected with sliding rollers 515 equidistantly provided between them through a pin shaft, and the sliding rollers 515 are attached to the bottom of the center frame beam 502. Figure 2 , Figure 3 , Figure 4 , Figure 8 and Fig. 9 As shown, the center support rod 508 can be adjusted to different positions of the center frame beam 502, and the center support rod 508 can be fixed under the fixing action of the first positioning hole 504, the second positioning hole 509 and the positioning pin rod 505, so that the support base plate 507 can be adjusted to different areas at the bottom of the center support assembly 5, effectively providing stronger supporting force for a side support assembly 4.

[0046] In the present invention, the mounting base frame 3 is provided with a plurality of mounting base holes 7 for fixing the mounting base frame 3 with the crane body 1. Figure 6 As shown, it is convenient to install two entire supporting structures 2 on both sides of the crane body 1.

[0047] In the present invention, two connecting plates 501 are respectively fixed to the top and bottom of the other end of the first support beam 401. Figure 5 As shown, it is convenient to fix and install the central support assembly 5 and the side support assembly 4 through the connecting plate 501.

[0048] In the present invention, the bottom of the support plate 406 and the bottom of the support base plate 507 are both provided with anti-skid grooves distributed at equal distances. Figure 4 As shown, the friction is increased and the grip is enhanced.

[0049] In summary: the anti-overturning crane equipment for highway construction is composed of the installation base frame 3, the side support assembly 4, the central support assembly 5, the driving mechanism 6, the auxiliary support assembly 8 and the crane body 1. The four leg structures of the anti-overturning crane equipment are composed of the side support assembly 4. The driving action of the driver 602 in the driving mechanism 6 drives the driving shaft 601, the worm 603 and the worm gear 604 to rotate, and adjusts the steering of the first support beam 401 in the side support assembly 4. The steering of the second support beam 403 is synchronously adjusted in coordination with the traction action of the traction plate 407 and the traction frame 402 and the meshing action of the driving gear 410 and the transmission gear 413, so that the side support assembly 4 can be deployed on both sides of the crane body 1 under the action of the driving mechanism 6. At this time, the height of the support plate 406 is adjusted by the first hydraulic cylinder 405, so that the support plate 406 is in contact with the ground, and in the first support During the unfolding process of the support beam 401, the central frame beam 502, central support rod 508, central seat 503, rotating seat 511, movable frame 512, second hydraulic cylinder 513 and supporting base plate 507 of the central support assembly 5 are unfolded at the same time. The cooperation between the central support assembly 5 and the side support assembly 4 is utilized to unfold the entire supporting structure 2 on both sides of the crane body 1. At this time, the height of the supporting base plate 507 is adjusted by the second hydraulic cylinder 513 so that the supporting base plate 507 is in contact with the ground, thereby increasing the supporting area of ​​the anti-overturning area, improving the traditional anti-overturning support method using a four-leg structure, and being able to adjust the central support rod 508 to different positions of the central frame beam 502, insert the positioning pin rod 505 into the first positioning hole 504 and the second positioning hole 509, fix the central support rod 508, and thereby adjust the supporting base plate 507 to different areas at the bottom of the central support assembly 5, thereby achieving better stability.

[0050] Second implementation method:

[0051] Based on the first embodiment, this embodiment adds the following structure, so that the present application has the function of further reinforcing the side support assembly 4, and the specific configuration is as follows: Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, an auxiliary support assembly 8 is arranged between one side of the second support beam 403 and one side of the first support beam 401, and the auxiliary support assembly 8 includes a connecting groove 801 opened on one side of the first support beam 401 and one side of the second support beam 403, and one end of the inner wall of the two connecting grooves 801 is respectively connected with a telescopic support frame 802 and a U-shaped support frame 803 through a pin shaft, and one end of the telescopic support frame 802 is connected with one end of the U-shaped support frame 803 through a pin shaft, so that when the side support assembly 4 is unfolded, the auxiliary support assembly 8 can be unfolded synchronously, thereby reinforcing the side support assembly 4 and ensuring the stability of the side support assembly 4.

[0052] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An anti-overturning crane for highway construction, characterized in that: It comprises a crane body (1); A support structure (2), wherein the support structure (2) is provided in two groups, and the two groups of the support structure (2) are respectively installed on both sides of the crane body (1), and the support structure (2) is composed of two mounting base frames (3), two side support assemblies (4), a central support assembly (5) and a driving mechanism (6); The two mounting base frames (3) are fixedly mounted on two ends of an outer wall of one side of the crane body (1); The two side support components (4) are respectively arranged on one side of the interior of the two installation base frames (3); The driving mechanism (6) is arranged at one end of the two side support assemblies (4) and inside the two installation base frames (3); The central support assembly (5) is arranged between the other ends of the two side support assemblies (4), and the central support assembly (5) comprises a connecting plate (501) fixed to the top and bottom of the other ends of the side support assemblies (4), a rotating seat (511) is rotatably connected between the two connecting plates (501) via a pin shaft, a central frame beam (502) is fixed at one end of the two rotating seats (511), and a central support rod (508) is inserted into the interior of the central frame beam (502), and the opposite ends of the two central support rods (508) are connected to the central frame beam (502). A central seat (503) is fixed between the two sides, a movable frame (512) is fixed at the bottom of the central seat (503), and second hydraulic cylinders (513) are fixedly mounted on both ends of the inner wall of the bottom of the movable frame (512), a supporting bottom plate (507) is fixedly mounted on the piston end of the second hydraulic cylinder (513), and second through holes for the piston end of the second hydraulic cylinder (513) to pass through are provided at both ends of the bottom of the movable frame (512), and position-adjustable components are provided on the two central frame beams (502) and the two central support rods (508).

2. The anti-overturning crane for highway construction according to claim 1, characterized in that: The position-adjustable component comprises first positioning holes (504) equidistantly provided on the central frame beam (502), and second positioning holes (509) equidistantly provided on the central support rod (508), positioning pins (505) are inserted into the interior of the first positioning holes (504) and the interior of the second positioning holes (509), a handle ring (510) is fixed to the top of the positioning pin (505), and a handle frame (506) is fixed to one side of the central seat (503).

3. The anti-overturning crane for highway construction according to claim 2, characterized in that: Side plates (514) are fixed on both sides of the top ends of the movable frame (512), and sliding rollers (515) distributed at equal distances are rotatably connected between two adjacent side plates (514) via pins, and the sliding rollers (515) are attached to the bottom of the central frame beam (502).

4. The anti-overturning crane for highway construction according to claim 3, characterized in that: The lateral support assembly (4) comprises first mounting holes (411) provided at the top and bottom of the mounting base frame (3), and the inner walls of the first mounting holes (411) are rotatably connected to first mounting shafts (408) via bearings, a first support beam (401) is fixed between the first mounting shafts (408), the other ends of the top and bottom of the first support beam (401) are rotatably connected to traction frames (402) via pins, and one end of the two traction frames (402) is rotatably connected to the same second support beam (403) via pins, a transmission gear (413) is fixed to one end of the second support beam (403), and the other end of the first support beam (401) is fixed to the transmission gear (413). A driving gear (410) is provided, the driving gear (410) meshing with a transmission gear (413); a second mounting hole (412) is provided on the top side and the bottom side of the mounting base frame (3); the inner wall of the second mounting hole (412) is rotatably connected to a second mounting shaft (409) via a bearing; a traction plate (407) is fixed between the second mounting shafts (409); one end of the traction plate (407) is rotatably connected to the other end of the traction frame (402) via a pin; a hydraulic support structure is provided at the other end of the second support beam (403); and an auxiliary support assembly (8) is provided between one side of the second support beam (403) and one side of the first support beam (401).

5. The anti-overturning crane for highway construction according to claim 4, characterized in that: The hydraulic support structure comprises a support frame (404) fixedly mounted on the other end of the second support beam (403), a first hydraulic cylinder (405) fixedly mounted inside the support frame (404), a support plate (406) fixedly mounted on the piston end of the first hydraulic cylinder (405), and a first through hole for the piston end of the first hydraulic cylinder (405) to pass through is provided at the bottom of the support frame (404).

6. The anti-overturning crane for highway construction according to claim 5, characterized in that: The auxiliary support assembly (8) comprises a connection groove (801) provided on one side of the first support beam (401) and one side of the second support beam (403), and one end of the inner wall of the two connection grooves (801) is rotatably connected to a telescopic support frame (802) and a U-shaped support frame (803) via a pin, respectively, and one end of the telescopic support frame (802) is rotatably connected to one end of the U-shaped support frame (803) via a pin.

7. The anti-overturning crane for highway construction according to claim 4, characterized in that: The driving mechanism (6) comprises a driving shaft (601) rotatably connected between the inner walls of one end of the two mounting base frames (3), and worms (603) are fixed to both sides of the outer wall of the driving shaft (601); a worm wheel (604) is fixed to one end of the first support beam (401), and the worm wheel (604) is meshed with the worm (603); and a driver (602) for driving the driving shaft (601), the worm (603) and the worm wheel (604) to rotate is fixedly mounted on the inner wall of the mounting base frame (3).

8. The anti-overturning crane for highway construction according to claim 1, characterized in that: The installation base frame (3) is provided with a plurality of installation base holes (7) for fixed installation with the crane body (1).

9. The anti-overturning crane for highway construction according to claim 4, characterized in that: The two connecting plates (501) are respectively fixed to the top and bottom of the other end of the first supporting beam (401).

10. The anti-overturning crane for highway construction according to claim 5, characterized in that: The bottom of the support plate (406) and the bottom of the support base plate (507) are both provided with anti-slip grooves distributed at equal distances.

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