Fixed column type pneumatic rotary cantilever crane stand column
By installing auxiliary plates, support rods, and threaded rods in four directions on the base plate of the fixed-column pneumatic rotary cantilever crane column, the stability problem of the column when suspending heavy objects is solved, achieving higher safety and protection effects.
Patent Information
- Application Number
- CN202520068597.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The existing fixed-column pneumatic rotary cantilever crane column lacks a supporting structure during the lifting of heavy objects, resulting in poor column stability and easy deformation or even toppling due to changes in the center of gravity.
Auxiliary plates are installed in four directions on the base plate, and adjustable-angle support rods and adjustable-length threaded rods are set on top of them. They are connected by movable buckles and fixed rings to form a multi-directional support structure, which enhances the stability of the column.
The multi-directional support structure reduces the risk of deformation of the columns when hoisting heavy objects and improves hoisting safety.
Smart Images

Figure CN223973745U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pneumatic rotary cantilever crane column technology, and in particular to a fixed column type pneumatic rotary cantilever crane column. Background Technology
[0002] A cantilever crane is a type of crane in which the lifting device is attached to the end of the boom or to a trolley that can move along the boom. The boom can rotate but cannot pitch.
[0003] A fixed-column pneumatic rotating cantilever crane consists of a foundation, a rotating section, a cantilever section, a pneumatic system, and a control system. The pneumatic system provides power to drive the rotating mechanism to achieve 360-degree rotation. The control system receives operating commands and controls the pneumatic system via electrical signals, thereby enabling various movements of the cantilever crane. The cantilever section carries the load and is constructed with high-strength steel to ensure its stability and load-bearing capacity.
[0004] The existing fixed-column pneumatic rotary cantilever crane column lacks a supporting structure after installation. If heavy objects are lifted, the stability of the column is easily affected by changes in the center of gravity, and in severe cases, the column may collapse due to deformation.
[0005] Therefore, it is necessary to provide a fixed-column pneumatic rotating cantilever crane column to solve the above-mentioned technical problems. Utility Model Content
[0006] This utility model provides a fixed-column pneumatic rotary cantilever crane column, which solves the problem that the existing fixed-column pneumatic rotary cantilever crane columns lack a supporting structure during use, and the stability of the column is affected by the change of the center of gravity when lifting heavy objects, which can seriously lead to the deformation of the column.
[0007] To solve the above-mentioned technical problems, the fixed-column pneumatic rotary cantilever crane column provided by this utility model includes: a base plate;
[0008] Four auxiliary plates are fixedly connected to the outer surface of the base plate at four different positions. Each auxiliary plate has a first movable buckle fixedly connected to its top. Each first movable buckle has a support rod rotatably connected to its top. Each support rod has a rotating nut rotatably connected to its top via an auxiliary ring. The inner surface of the rotating nut is threaded with a threaded rod. The top of the threaded rod is rotatably connected with a second movable buckle.
[0009] The column is fixedly connected to the top of the base plate. A fixing ring is installed on the outer surface of the column by fixing bolts. A support ring is fixedly connected to the bottom end of the fixing ring. A rotating ring is rotatably connected to the top position of the outer surface of the column by a bearing. A hanging rod is fixedly connected to the outer surface of the rotating ring.
[0010] The top of the second movable buckle is connected to the bottom of the support ring, and the length of the threaded rod can be adjusted by rotating the nut.
[0011] Preferably, a pneumatic drive device is installed at the top of the inner wall of the column, and an internal gear ring is fixedly connected to the top of the rotating ring;
[0012] Pneumatic drive equipment includes a rotary motor and drive gears.
[0013] Preferably, a winding assembly is installed at the top end of the boom near the rotating ring, and holes are provided at the top of the base plate near the four corners;
[0014] The winding assembly includes a housing, steel wire, a winding wheel, and a motor that drives the winding wheel. The guide wheel guides the steel wire.
[0015] Preferably, a fixing plate is fixedly connected to the outer surface of the rotating ring, and a reinforcing rod is fixedly connected to the other side of the fixing plate;
[0016] The other end of the reinforcing rod is connected to the bottom of the hanger rod.
[0017] Preferably, the other end of the boom is connected to a rotating frame, and a guide wheel is rotatably connected inside the rotating frame.
[0018] Preferably, a support ring is fixedly connected to the outer surface of the column, and a movable block is fixedly connected to the bottom end of the threaded rod;
[0019] The movable block moves inside the support rod.
[0020] Compared with related technologies, the fixed-column pneumatic rotary cantilever crane column provided by this utility model has the following beneficial effects:
[0021] This utility model provides a fixed-column pneumatic rotary cantilever crane column. To enhance the support and protection of the fixed-column pneumatic rotary cantilever crane column, auxiliary plates are installed in four directions of the base plate. An adjustable-angle support rod is installed on the top of each auxiliary plate via a first movable buckle. An adjustable-length threaded rod is installed on the top of each support rod via a rotating nut. The four threaded rods are then connected to a fixed ring with a support ring via a second movable buckle. The fixed ring is installed on the outer surface of the column using fixing bolts. This design provides protection and support for the fixed-column pneumatic rotary cantilever crane column, reducing deformation during heavy lifting and improving lifting safety. Attached Figure Description
[0022] Figure 1 A schematic diagram of a preferred embodiment of the fixed-column pneumatic rotary cantilever crane column provided by this utility model;
[0023] Figure 2 A structural schematic diagram of the lifting rod is provided for this utility model;
[0024] Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;
[0025] Figure 4 A schematic diagram of the adjusting screw is provided for this utility model;
[0026] Figure 5 Provided for this utility model Figure 2 A magnified view of point B shown.
[0027] The following are the labels in the diagram: 1. Base plate, 2. Auxiliary plate, 3. First movable buckle, 4. Support rod, 5. Threaded rod, 6. Support ring, 7. Fixed ring, 8. Rotating ring, 9. Winding assembly, 10. Hanging rod, 11. Guide wheel, 12. Rotating frame, 13. Reinforcing rod, 14. Fixing plate, 15. Column, 16. Rotating nut, 17. Second movable buckle, 18. Fixing bolt, 19. Auxiliary ring, 20. Movable block, 21. Pneumatic drive device, 22. Internal gear ring, 23. Support ring, 24. Bearing. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0029] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the fixed-column pneumatic rotary cantilever crane column provided by this utility model; Figure 2 A structural schematic diagram of the lifting rod is provided for this utility model; Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;
[0030] Figure 4 A schematic diagram of the adjusting screw is provided for this utility model; Figure 5 Provided for this utility model Figure 2 The enlarged view at point B is shown. The column of the fixed-column pneumatic rotary cantilever crane includes: base plate 1;
[0031] Four auxiliary plates 2 are fixedly connected to the outer surface of the base plate 1 at four different positions. Each auxiliary plate 2 has a first movable buckle 3 fixedly connected to its top. Each first movable buckle 3 has a support rod 4 rotatably connected to its top. Each support rod 4 has a rotating nut 16 rotatably connected to its top through an auxiliary ring 19. The inner surface of the rotating nut 16 is threaded with a threaded rod 5. The top of the threaded rod 5 is rotatably connected with a second movable buckle 17.
[0032] The column 15 is fixedly connected to the top of the base plate 1. A fixing ring 7 is installed on the outer surface of the column 15 by fixing bolts 18. A support ring 6 is fixedly connected to the bottom end of the fixing ring 7. A rotating ring 8 is rotatably connected to the top position of the outer surface of the column 15 by bearing 24. A hanging rod 10 is fixedly connected to the outer surface of the rotating ring 8.
[0033] The top of the second movable buckle 17 is connected to the bottom of the support ring. The length of the threaded rod 5 can be adjusted by rotating the nut 16. The support rod 4 is hollow inside. The hanging rod 10 can rotate 360 degrees through the bearing 24 and the rotating ring 8.
[0034] A pneumatic drive device 21 is installed on the top of the inner wall of the column 15, and an internal gear ring 22 is fixedly connected to the top of the rotating ring 8.
[0035] The pneumatic drive device 21 includes a rotary motor and a drive gear. The drive gear meshes with the internal gear ring 22, which can drive the rotating ring 8 to rotate.
[0036] A winding assembly 9 is installed at the top of the boom 10 near the rotating ring 8, and holes are provided at the top of the base plate 1 near the four corners.
[0037] The winding assembly 9 includes a housing, steel wire, winding wheel and motor that drives the winding wheel. The guide wheel 11 guides the steel wire. The holes on the base plate 1 are for easy bolt installation of the base plate 1 in the corresponding positions.
[0038] A fixing plate 14 is fixedly connected to the outer surface of the rotating ring 8, and a reinforcing rod 13 is fixedly connected to the other side of the fixing plate 14;
[0039] The other end of the reinforcing rod 13 is connected to the bottom of the hanging rod 10.
[0040] The other end of the boom 10 is connected to the rotating frame 12, and the rotating frame 12 is rotatably connected to the guide wheel 11.
[0041] The rotating frame 12 is equipped with a ring to prevent the steel wire from falling off.
[0042] The outer surface of the column 15 is fixedly connected to a support ring 23, and the bottom end of the threaded rod 5 is fixedly connected to a movable block 20;
[0043] The movable block 20 moves inside the support rod 4, and the bottom of the support ring 23 and the rotating ring 8 come into contact, thus providing support.
[0044] The working principle of the fixed-column pneumatic rotary cantilever crane column provided by this utility model is as follows:
[0045] Auxiliary plates 2 are installed in all four directions of the base plate 1. An adjustable support rod 4 is installed on the top of each auxiliary plate 2 via a first movable buckle 3. An adjustable threaded rod 5 is installed on the top of each support rod 4 via a rotating nut 16. The four threaded rods 5 are then connected to a fixed ring 7 with a support ring 6 via a second movable buckle 17. The fixed ring 7 is installed on the outer surface of the column 15 via a fixing bolt 18. In actual use, the fixed ring 7 is first installed on the outer surface of the column 15 via the fixing bolt 18. Then, the extension length of the threaded rod 5 is adjusted by rotating the nut 15. The support rod 4 and the threaded rod 5 work together to support the support ring 6. When the column of the fixed-column pneumatic rotary cantilever crane is subjected to force on one side during the hoisting of heavy objects, the support rod 4 and the threaded rod 5 on the corresponding side provide auxiliary support to the column 15, reducing the deformation of the column 15 due to the force.
[0046] Compared with related technologies, the fixed-column pneumatic rotary cantilever crane column provided by this utility model has the following beneficial effects:
[0047] To enhance the support and protection of the fixed-column pneumatic rotary cantilever crane column, auxiliary plates 2 are installed in all four directions of the base plate 1. An adjustable support rod 4 is installed on the top of each auxiliary plate 2 via a first movable buckle 3. An adjustable threaded rod 5 is installed on the top of each support rod 4 via a rotating nut 16. The four threaded rods 5 are then connected to a fixed ring 7 with a support ring 6 via a second movable buckle 17. The fixed ring 7 is installed on the outer surface of the column 15 via a fixing bolt 18. This design provides protection and support for the fixed-column pneumatic rotary cantilever crane column 15, reducing the likelihood of deformation during heavy lifting and improving lifting safety.
[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A column type pneumatic rotary jib crane column, characterized by, Include: The bottom plate; Four auxiliary plates, four said auxiliary plates are fixedly connected on the outer surface of the bottom plate respectively at the position of four faces, the top of the auxiliary plate is fixedly connected with the first movable buckle, the top of the first movable buckle is rotatably connected with the support rod, the top of the support rod is rotatably connected with the rotating nut through the auxiliary ring, the inner surface of the rotating nut is threadedly connected with the threaded rod, and the top of the threaded rod is rotatably connected with the second movable buckle; The column is fixedly connected to the top of the bottom plate, the outer surface of the column is provided with a fixed ring through a fixed bolt, the bottom end of the fixed ring is fixedly connected with a support ring, the outer surface of the column is rotatably connected with a rotating ring through a bearing at the top, the outer surface of the rotating ring is fixedly connected with a boom.
2. A column type pneumatic rotary jib crane column according to claim 1, characterized in that The inner wall of the column is provided with a pneumatic drive device at the top, and the top of the rotating ring is fixedly connected with a gear ring.
3. The column-style pneumatic rotary jib crane column of claim 1, wherein, The top of the boom is provided with a winding assembly near one end of the rotating ring, and the top of the bottom plate is provided with a hole near four corners.
4. The column-style pneumatic rotary jib crane column of claim 1, wherein, The outer surface of the rotating ring is fixedly connected with a fixed sheet, and the other side of the fixed sheet is fixedly connected with a reinforcing rod.
5. The column-style pneumatic rotary jib crane column of claim 1, wherein, The other end of the boom is connected through a rotating frame, and the rotating frame is rotatably connected with a guide wheel inside.
6. The column-style pneumatic rotary jib crane column of claim 1, wherein, The outer surface of the column is fixedly connected with a supporting ring, and the bottom end of the threaded rod is fixedly connected with a movable block.