Multi-section type air cylinder suspension arm structure

Abstract

The utility model discloses a multi-section type air cylinder suspension arm structure which comprises a hoisting base plate arranged on hoisting equipment, a suspension arm mechanism used for forming the multi-section type suspension arm structure, a steering mechanism used for adjusting the hoisting direction of the suspension arm mechanism and a hoisting mechanism used for forming a frame-shaped hoisting tool structure, the lifting arm mechanism is assembled on one side of the lifting base plate, the steering mechanism is arranged between the lifting base plate and the lifting arm mechanism, and the lifting mechanism is arranged at one end, far away from the lifting base plate, of the lifting arm mechanism. The lifting arm structure is simple in structure and provided with the shake stopping assembly, shake generated by the lifting appliance can be rapidly eliminated in the lifting process, a lifted object is limited, the lifted object is prevented from falling off, the use safety of the lifting arm structure is guaranteed, the steering mechanism is arranged to be matched with the lifting mechanism, the object can be flexibly transferred in the lifting process, and the working efficiency is high.

Description

Technical Field

[0001] This utility model relates to the technical field of cylinder boom devices, and in particular to a multi-segment cylinder boom structure. Background Technology

[0002] In existing technology, cantilever cranes typically include a column installed on the ground, a cantilever fixed at one end to the upper part of the column, an electric chain hoist slidably connected to the cantilever, and electrical control components. The cantilever part can be driven by a cylinder, hence it is also called a cylinder crane. Cantilever cranes are widely used due to their simple structure and ease of use. However, since the column is fixed to the ground, the working range of the cantilever crane is relatively fixed within a circle with a radius from the lifting center of the electric chain hoist at the farthest end of the cantilever to the center of the column. When it is necessary to lift heavy objects beyond the above-mentioned circumference, existing cantilever cranes cannot lift them, resulting in significant limitations. Therefore, the disadvantages of existing cantilever cranes are that the installation environment is limited, the working area is small, the lifting range is limited, and it is impossible to perform flexible lifting operations on items, resulting in low work efficiency.

[0003] Chinese utility model patent application number 202123007928.7 discloses a mobile lifting cantilever, including a main support plate, moving wheels, side support plates, a push handle, a first hinge seat, a cylinder, a cylinder rod, a first boom, a boom hinge block, a lifting hinge plate, a second hinge seat, a second boom, and a third boom. Two sets of moving wheels are symmetrically fixedly installed on the main support plate. The side support plate is fixedly installed on the moving wheels. The push handle is fixedly installed on the side support plate. The first hinge seat is fixedly installed on the side support plate. The end of the cylinder is hinged to the first hinge seat. The cylinder rod is slidably installed on the cylinder output end. A boom hinge block is fixedly installed on the first boom. A lifting hinge plate is fixedly installed on the first boom. The end of the cylinder rod is hinged to the lifting hinge plate. The second hinge seat is fixedly installed on the side support plate. The boom hinge block is hinged to the second hinge seat. However, this type of mobile lifting cantilever structure is relatively loose and requires a large installation space. It uses a straight boom structure to lift objects, which makes it impossible to flexibly transfer items during the lifting process, resulting in low work efficiency. Furthermore, during the transfer process, the lifting equipment may sway significantly, causing the lifted object to fall off, which poses certain safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a multi-segment cylinder boom structure.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows:

[0006] A multi-segment cylinder boom structure includes a lifting base plate disposed on a lifting device, and further includes a boom mechanism for forming the multi-segment boom structure, a steering mechanism for adjusting the lifting direction of the boom mechanism, and a lifting mechanism for forming a frame-like lifting device structure. The boom mechanism is mounted on one side of the lifting base plate, the steering mechanism is arranged between the lifting base plate and the boom mechanism, and the lifting mechanism is disposed at the end of the boom mechanism away from the lifting base plate.

[0007] The boom mechanism includes a boom support column, a support arm, a support cylinder, a propulsion assembly, and an anti-sway assembly. The boom support column is vertically mounted on one side of the lifting base plate and is rotatably connected to the lifting base plate via a steering mechanism. The support arm is located at the upper end of the boom support column, and one end of the support arm is rotatably connected to the boom support column via a rotating shaft. The support cylinder is located between the boom support column and the support arm and is rotatably connected to the boom support column via a rotating shaft. The output end of the support cylinder is located towards the end of the support arm away from the boom support column, and the output end of the support cylinder is rotatably connected to the support arm via a rotating shaft and a mounting base. The propulsion assembly is slidably mounted on the side of the support arm away from the boom support column, and the anti-sway assembly is arranged on the upper part of the propulsion assembly.

[0008] The propulsion assembly includes a propulsion guide rail, a propulsion electric cylinder, a propulsion slider, and a propulsion arm. Two sets of propulsion guide rails are symmetrically arranged on the upper part of the support arm at the end furthest from the boom support column and are fixedly connected to the support arm. The propulsion electric cylinder is located at one end of the propulsion guide rail and is fixedly connected to it. The propulsion slider is located inside the two sets of propulsion guide rails and is slidably connected to them. The propulsion arm is located at the upper end of the propulsion slider and is fixedly connected to it. A lifting base is provided at the end of the propulsion arm furthest from the boom support column.

[0009] The anti-sway assembly includes an anti-sway cylinder, an anti-sway connecting rod, an anti-sway rotating seat, and an anti-sway support rod. The anti-sway cylinder is located at the upper end of the push arm and is rotatably connected to the push arm via a rotating shaft. The output end of the anti-sway cylinder is located towards the end of the push arm away from the boom support. The anti-sway connecting rod is located at the output end of the anti-sway cylinder, and one end of it is rotatably connected to the output end of the anti-sway cylinder via a rotating shaft. The anti-sway rotating seat is located at the end of the anti-sway connecting rod away from the anti-sway cylinder, and one end of it is fixedly connected to the anti-sway connecting rod. The anti-sway rotating seat is rotatably connected to the lifting base via a rotating shaft. The anti-sway support rod is located on the side of the anti-sway rotating seat away from the anti-sway connecting rod and is fixedly connected to the anti-sway rotating seat. The anti-sway support rod is arranged towards the lifting mechanism.

[0010] It also includes a protective pad, which is disposed at the end of the anti-sway support rod near the hoisting mechanism and is fixedly connected to the anti-sway support rod.

[0011] It also includes a lifting hook, which is located at the lower part of the lifting base and is connected to the propulsion arm for lifting via a lifting ring and the lifting base.

[0012] The steering mechanism includes a steering base, a steering motor, and a steering connector. Two sets of steering bases are arranged side-by-side with a gap on the side of the lifting base plate near the boom support and are fixedly connected to the lifting base plate. Two sets of steering motors are symmetrically arranged on the side of the lifting base plate near the boom support, corresponding to the two sets of steering bases, and are fixedly connected to the lifting base plate. The output end of each steering motor passes through the corresponding steering base and is rotatably connected to it. Two sets of steering connectors are respectively located at the output ends of the two sets of steering motors and are fixedly connected to the output ends of the corresponding steering motors. The two sets of steering connectors are arranged side-by-side on one side of the boom support and are fixedly connected to it.

[0013] The hoisting mechanism includes a mounting ring, a lifting bracket, and a hoisting hook. The mounting ring is located at the lower part of the mounting hook and is hooked to the mounting hook. The lifting bracket is located at the lower part of the mounting ring and is fixedly connected to the mounting ring. The lifting bracket is a cross-shaped bracket structure. There are four sets of hoisting hooks, which are respectively located at the four ends of the lifting bracket and fixedly connected to the lifting bracket.

[0014] It also includes a reinforcing rib plate, which is disposed between the mounting ring and the lifting device bracket and is fixedly connected to the lifting device bracket. The mounting ring is fixedly connected to the lifting device bracket through the reinforcing rib plate.

[0015] The hoisting mechanism is hoisted and connected to the propulsion arm via the installation lifting ring and the installation hook.

[0016] The beneficial effects of this utility model are:

[0017] With a compact structure and a multi-segment stacked boom arrangement, it saves installation space and is equipped with anti-sway components that can quickly eliminate swaying generated by the lifting device during hoisting and limit the hoisted object to prevent it from falling off, ensuring the safety of the boom structure. It also has a steering mechanism that works in conjunction with the hoisting mechanism to flexibly transfer items during hoisting, resulting in high work efficiency. The frame-like lifting device structure has strong balance and can meet the hoisting needs of various objects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the boom mechanism structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the hoisting mechanism of this utility model.

[0021] In the diagram: 1. Lifting base plate; 2. Boom support column; 3. Support arm; 4. Support cylinder; 5. Push guide rail; 6. Push electric cylinder; 7. Push slider; 8. Push arm; 9. Anti-sway cylinder; 10. Anti-sway connecting rod; 11. Anti-sway rotating seat; 12. Anti-sway support rod; 13. Protective pad; 14. Installation hook; 15. Steering base; 16. Steering motor; 17. Steering connecting seat; 18. Installation lifting ring; 19. Lifting tool bracket; 20. Lifting hook; 21. Reinforcing rib plate. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] A multi-segment cylinder boom structure includes a lifting base plate 1, which is disposed on a lifting device. It also includes a boom mechanism for forming the multi-segment boom structure, a steering mechanism for adjusting the lifting direction of the boom mechanism, and a lifting mechanism for forming a frame-like lifting device structure. The boom mechanism is mounted on one side of the lifting base plate 1, the steering mechanism is arranged between the lifting base plate 1 and the boom mechanism, and the lifting mechanism is located at the end of the boom mechanism away from the lifting base plate 1. A schematic diagram of the overall structure of this utility model is shown below. Figure 1 As shown.

[0024] The boom mechanism includes a boom support 2, a support arm 3, a support cylinder 4, a propulsion assembly, and an anti-sway assembly. The boom support 2 is vertically mounted on one side of the lifting base plate 1 and is rotatably connected to the lifting base plate 1 via a steering mechanism. The support arm 3 is located at the upper end of the boom support 2, and one end of it is rotatably connected to the boom support 2 via a rotating shaft. The support cylinder 4 is located between the boom support 2 and the support arm 3 and is rotatably connected to the boom support 2 via a rotating shaft. The output end of the support cylinder 4 faces the end of the support arm 3 away from the boom support 2, and the output end of the support cylinder 4 is rotatably connected to the support arm 3 via a rotating shaft and a mounting base. The propulsion assembly is slidably mounted on the side of the support arm 3 away from the boom support 2. The component is arranged above the propulsion component. The boom mechanism, through the cooperation of boom support 2, support arm 3, support cylinder 4, propulsion component, and anti-sway component, forms a multi-segment boom structure. The boom support 2 provides mounting support for the support arm 3 and support cylinder 4. The support arm 3 provides mounting support for the propulsion component. The support cylinder 4 adjusts the pitch angle of the support arm 3 through its extension and retraction at its output end, thereby achieving the lifting of objects. The propulsion component, together with the support arm 3, forms the multi-segment boom structure. The anti-sway component quickly eliminates the swaying generated by the lifting device during lifting and limits the position of the lifted object. A schematic diagram of the boom mechanism structure of this utility model is shown below. Figure 2 As shown.

[0025] The propulsion assembly includes a propulsion guide rail 5, a propulsion electric cylinder 6, a propulsion slider 7, and a propulsion arm 8. Two sets of propulsion guide rails 5 are symmetrically arranged on the upper part of the support arm 3 at the end furthest from the boom support 2 and are fixedly connected to the support arm 3. The propulsion electric cylinder 6 is located at one end of the propulsion guide rail 5 and is fixedly connected to it. The propulsion slider 7 is located inside the two sets of propulsion guide rails 5 and is slidably connected to them. The propulsion arm 8 is located at the upper end of the propulsion slider 7 and is fixedly connected to it. The end of the propulsion arm 8 furthest from the boom support 2... The system is equipped with a lifting base. The propulsion assembly, together with the support arm 3, forms a multi-segment boom structure through the propulsion guide rail 5, propulsion cylinder 6, propulsion slider 7, and propulsion arm 8. The propulsion guide rail 5 provides installation support for the propulsion cylinder 6 and sliding support for the propulsion slider 7. The propulsion cylinder 6 controls the propulsion slider 7 to slide along the propulsion guide rail 5. The propulsion slider 7 provides installation support for the propulsion arm 8 and drives the propulsion arm 8 to slide along the propulsion guide rail 5 under the action of the propulsion cylinder 6, thereby causing the propulsion arm 8 to move relative to the support arm 3.

[0026] The anti-sway assembly includes an anti-sway cylinder 9, an anti-sway connecting rod 10, an anti-sway rotating seat 11, and an anti-sway support rod 12. The anti-sway cylinder 9 is located at the upper end of the push arm 8 and is rotatably connected to the push arm 8 via a rotating shaft. The output end of the anti-sway cylinder 9 faces the end of the push arm 8 furthest from the boom support 2. The anti-sway connecting rod 10 is located at the output end of the anti-sway cylinder 9, and one end of it is rotatably connected to the output end of the anti-sway cylinder 9 via a rotating shaft. The anti-sway rotating seat 11 is located at the end of the anti-sway connecting rod 10 furthest from the anti-sway cylinder 9, and one end of it is fixedly connected to the anti-sway connecting rod 10. The anti-sway rotating seat 11 is rotatably connected to the hoisting base via a rotating shaft. The anti-sway support rod 12 is located on the side of the anti-sway rotating seat 11 furthest from the anti-sway connecting rod 10 and is fixedly connected to the anti-sway rotating seat 11. The anti-sway support rod 12 is arranged towards the hoisting mechanism to prevent swaying. The assembly, through the cooperation of anti-sway cylinder 9, anti-sway connecting rod 10, anti-sway rotating seat 11, and anti-sway support rod 12, quickly eliminates the swaying generated by the lifting equipment and limits the lifting object during the hoisting process. The anti-sway cylinder 9 provides installation support for the anti-sway connecting rod 10 and drives the anti-sway connecting rod 10 to move through the extension and retraction of its output end. The anti-sway connecting rod 10 provides installation support for the anti-sway rotating seat 11. The anti-sway rotating seat 11, together with the anti-sway connecting rod 10, forms a transmission structure and rotates around the connection point between the anti-sway rotating seat 11 and the lifting base under the action of the anti-sway cylinder 9, thereby driving the anti-sway support rod 12 to move. The anti-sway support rod 12 moves under the drive of the anti-sway rotating seat 11 to get close to the lifting mechanism, thereby eliminating the swaying generated by the lifting equipment and limiting the lifting object.

[0027] It also includes a protective pad 13, which is disposed at the end of the anti-sway support rod 12 near the lifting mechanism and is fixedly connected to the anti-sway support rod 12. The protective pad 13 serves as a protective structure at the end of the anti-sway support rod 12, thereby preventing damage to the lifting device when the anti-sway support rod 12 comes into close contact with the lifting device.

[0028] It also includes a mounting hook 14, which is located at the lower part of the lifting base and is connected to the propulsion arm 8 via a lifting ring and the lifting base. The mounting hook 14 serves as a hook structure at the end of the propulsion arm 8 to meet the installation requirements of the lifting mechanism.

[0029] The steering mechanism includes a steering base 15, a steering motor 16, and a steering connecting seat 17. Two sets of steering bases 15 are arranged side-by-side at intervals on one side of the lifting base plate 1 near the boom support 2 and are fixedly connected to the lifting base plate 1. Two sets of steering motors 16 are symmetrically arranged on one side of the lifting base plate 1 near the boom support 2, corresponding to the two sets of steering bases 15, and are fixedly connected to the lifting base plate 1. The output end of each steering motor 16 passes through and is rotatably connected to the corresponding steering base 15. Two sets of steering connecting seats 17 are respectively located at the output ends of the two sets of steering motors 16 and are fixedly connected to the output ends of the corresponding steering motors 16. The two sets of steering connecting seats 17 are arranged side-by-side. Arranged on one side of the boom support 2 and fixedly connected to the boom support 2, the steering mechanism, through the cooperation of the steering base 15, the steering motor 16 and the steering connecting seat 17, provides steering support for the boom mechanism to flexibly transfer items during the lifting process. The steering base 15 serves as the mounting structure on the lifting base plate 1, thereby providing mounting support for the output end of the steering motor 16. The steering motor 16 provides mounting support for the steering connecting seat 17 and drives the steering connecting seat 17 to rotate through the rotation of its output end. The steering connecting seat 17 serves as the connecting structure on the boom support 2 to drive the boom support 2 to rotate under the action of the output end of the steering motor 16, thereby driving the boom mechanism to rotate to flexibly transfer items during the lifting process.

[0030] The lifting mechanism includes a lifting ring 18, a lifting bracket 19, and lifting hooks 20. The lifting ring 18 is located below the lifting hook 14 and is hooked to it. The lifting bracket 19 is located below the lifting ring 18 and is fixedly connected to it. The lifting bracket 19 has a cross-shaped support structure. There are four sets of lifting hooks 20, which are located at the four ends of the lifting bracket 19 and fixedly connected to it. The lifting mechanism uses the lifting ring 18 and the lifting hooks 14 to lift the boom 8. The hoisting mechanism, through the connection of the mounting ring 18, the lifting bracket 19, and the hoisting hook 20, forms a cross-shaped hoisting structure, thereby providing stable hoisting support for the object. The mounting ring 18 serves as a mounting structure on the lifting bracket 19 to hoist the lifting bracket 19 onto the mounting hook 14. The lifting bracket 19 forms a cross-shaped support structure and provides mounting support for the hoisting hook 20. The hoisting hook 20 provides stable hoisting support for the object under the action of the lifting bracket 19. A schematic diagram of the hoisting mechanism of this utility model is shown below. Figure 3 As shown.

[0031] It also includes a reinforcing rib plate 21, which is disposed between the mounting ring 18 and the lifting device bracket 19 and is fixedly connected to the lifting device bracket 19. The mounting ring 18 is fixedly connected to the lifting device bracket 19 through the reinforcing rib plate 21. The reinforcing rib plate 21 is used as a reinforcing structure on the lifting device bracket 19 to improve the strength and stability of the lifting mechanism.

[0032] In this technical solution, the propulsion guide rail 5, propulsion electric cylinder 6, and propulsion slider 7 mainly serve to drive the propulsion arm 8 to move relative to the support arm 3. This is existing technology, so it will not be described in detail here. Other existing mechanisms with the same function can be used to replace it.

[0033] Working principle:

[0034] The multi-segment cylinder boom is assembled onto the lifting equipment via the lifting base plate 1. When an object needs to be lifted, the object is hoisted onto the lifting hook 20 via ropes. Then, the output end of the support cylinder 4 extends to lift the support arm 3, thereby lifting the object. At the same time, the push cylinder 6 drives the push arm 8 along the push guide rail 5 via the push slider 7, thereby moving the push arm 8 relative to the support arm 3, thus realizing the lifting operation of the object. After the lifting is completed, the output end of the steering motor 16 rotates to drive the boom support 2 to rotate via the steering connecting seat 17, thereby realizing the overall boom structure driving the object to rotate for lifting and transfer. During the transfer, the output end of the anti-sway cylinder 9 can be extended to drive the anti-sway rotating seat 11 to move via the anti-sway connecting rod 10. The anti-sway rotating seat 11 rotates with its connection point with the lifting base as the base point, thereby driving the anti-sway support rod 12 to move. The anti-sway support rod 12 drives the protective pad 13 to come close to the lifting mechanism, thereby quickly eliminating the swaying generated by the lifting device and limiting the lifting object.

[0035] The advantages of this utility model are its compact structure, the presence of a boom mechanism, and the stacked arrangement of multi-segment boom structures, which saves installation space. It is also equipped with anti-sway components, which can quickly eliminate the swaying generated by the lifting device during the lifting process and limit the lifting object to prevent it from falling off, thus ensuring the safety of the boom structure. It also has a steering mechanism that works in conjunction with the lifting mechanism, which allows for flexible transfer of items during the lifting process, resulting in high work efficiency. The frame-like lifting device structure has strong balance and can meet the lifting needs of various objects.

[0036] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A multi-segment cylinder boom structure, comprising a lifting base plate (1), said lifting base plate (1) being disposed on a lifting device, characterized in that, It also includes a boom mechanism for forming a multi-segment boom structure, a steering mechanism for adjusting the lifting direction of the boom mechanism, and a lifting mechanism for forming a frame-like lifting device structure. The boom mechanism is mounted on one side of the lifting base plate (1), the steering mechanism is arranged between the lifting base plate (1) and the boom mechanism, and the lifting mechanism is located at the end of the boom mechanism away from the lifting base plate (1).

2. The multi-segment cylinder boom structure as described in claim 1, characterized in that, The boom mechanism includes a boom support column (2), a support arm (3), a support cylinder (4), a propulsion assembly, and an anti-sway assembly. The boom support column (2) is vertically arranged on one side of the lifting base plate (1) and is rotatably connected to the lifting base plate (1) through a steering mechanism. The support arm (3) is arranged at the upper end of the boom support column (2) and one end of it is rotatably connected to the boom support column (2) through a rotating shaft. The support cylinder (4) is arranged between the boom support column (2) and the support arm (3) and is rotatably connected to the boom support column (2) through a rotating shaft. The output end of the support cylinder (4) is arranged facing the end of the support arm (3) away from the boom support column (2) and the output end of the support cylinder (4) is rotatably connected to the support arm (3) through a rotating shaft and a mounting seat. The propulsion assembly is slidably assembled on the side of the support arm (3) away from the boom support column (2). The anti-sway assembly is arranged on the upper part of the propulsion assembly.

3. The multi-segment cylinder boom structure as described in claim 2, characterized in that, The propulsion assembly includes a propulsion guide rail (5), a propulsion electric cylinder (6), a propulsion slider (7), and a propulsion arm (8). The propulsion guide rail (5) is provided in two sets, which are symmetrically arranged on the upper part of the support arm (3) away from the boom support column (2) and fixedly connected to the support arm (3). The propulsion electric cylinder (6) is located at one end of the propulsion guide rail (5) and fixedly connected to the propulsion guide rail (5). The propulsion slider (7) is located on the inner side of the two sets of propulsion guide rails (5) and slidably connected to the propulsion guide rail (5). The propulsion arm (8) is located at the upper end of the propulsion slider (7) and fixedly connected to the propulsion slider (7). The end of the propulsion arm (8) away from the boom support column (2) is provided with a hoisting base.

4. The multi-segment cylinder boom structure as described in claim 3, characterized in that, The anti-sway assembly includes an anti-sway cylinder (9), an anti-sway connecting rod (10), an anti-sway rotating seat (11), and an anti-sway support rod (12). The anti-sway cylinder (9) is located at the upper end of the push arm (8) and is rotatably connected to the push arm (8) via a rotating shaft. The output end of the anti-sway cylinder (9) is located towards the end of the push arm (8) away from the boom support rod (2). The anti-sway connecting rod (10) is located at the output end of the anti-sway cylinder (9), and one end of it is connected to the anti-sway cylinder (9) via a rotating shaft. The output end is rotatably connected. The anti-sway rotating seat (11) is located at the end of the anti-sway connecting rod (10) away from the anti-sway cylinder (9) and one end of it is fixedly connected to the anti-sway connecting rod (10). The anti-sway rotating seat (11) is rotatably connected to the hoisting base through a rotating shaft. The anti-sway support rod (12) is located on the side of the anti-sway rotating seat (11) away from the anti-sway connecting rod (10) and is fixedly connected to the anti-sway rotating seat (11). The anti-sway support rod (12) is arranged towards the hoisting mechanism.

5. The multi-segment cylinder boom structure as described in claim 4, characterized in that, It also includes a protective pad (13), which is disposed at one end of the anti-sway support rod (12) near the hoisting mechanism and is fixedly connected to the anti-sway support rod (12).

6. The multi-segment cylinder boom structure as described in claim 5, characterized in that, It also includes a mounting hook (14), which is located at the lower part of the lifting base and is hoisted to the propulsion arm (8) via a lifting ring and the lifting base.

7. The multi-segment cylinder boom structure as described in claim 6, characterized in that, The steering mechanism includes a steering base (15), a steering motor (16), and a steering connecting seat (17). Two sets of steering bases (15) are arranged side-by-side and spaced apart on the side of the lifting base plate (1) near the boom support (2) and fixedly connected to the lifting base plate (1). Two sets of steering motors (16) are symmetrically arranged on the side of the lifting base plate (1) near the boom support (2) corresponding to the two sets of steering bases (15) and fixedly connected to the lifting base plate (1). The hoisting base plate (1) is fixedly connected, the output end of the steering motor (16) passes through the corresponding steering base (15) and is rotatably connected to the steering base (15), the steering connecting seat (17) is provided in two sets, the two sets of steering connecting seats (17) are respectively set at the output ends of the two sets of steering motors (16) and are fixedly connected to the output ends of the corresponding steering motors (16), the two sets of steering connecting seats (17) are arranged side by side on one side of the boom support (2) and are fixedly connected to the boom support (2).

8. The multi-segment cylinder boom structure as described in claim 7, characterized in that, The hoisting mechanism includes a mounting ring (18), a lifting bracket (19), and a hoisting hook (20). The mounting ring (18) is located at the lower part of the mounting hook (14) and is hooked to the mounting hook (14). The lifting bracket (19) is located at the lower part of the mounting ring (18) and is fixedly connected to the mounting ring (18). The lifting bracket (19) is configured as a cross-shaped bracket structure. There are four sets of hoisting hooks (20). The four sets of hoisting hooks (20) are respectively located at the four ends of the lifting bracket (19) and are fixedly connected to the lifting bracket (19).

9. A multi-segment cylinder boom structure as described in claim 8, characterized in that, It also includes a reinforcing rib plate (21), which is disposed between the mounting ring (18) and the lifting device bracket (19) and is fixedly connected to the lifting device bracket (19). The mounting ring (18) is fixedly connected to the lifting device bracket (19) through the reinforcing rib plate (21).

10. A multi-segment cylinder boom structure as described in claim 9, characterized in that, The hoisting mechanism is hoisted and connected to the propulsion arm (8) via the installation lifting ring (18) and the installation hook (14).

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