A wall-attached steel structure for a tower crane with high stability

Through the combined structure of connecting frame, connecting angle iron, connecting seat and tie rod, the problem of torsion and deformation of tower crane column frame in high altitude is solved, and the overall stability of tower crane is improved.

CN115057374BActive Publication Date: 2025-07-29THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
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Patent Information

Application Number
CN202210619870.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-02
Publication Date
2025-07-29
Estimated Expiration
2042-06-02

AI Technical Summary

Technical Problem

The column frames of tower cranes are prone to twisting and deformation in high altitudes, which affects stability, especially the two columns far away from the wall have poor stability.

Method used

The combined structure of the connecting frame, the connecting angle iron, the connecting seat, the first tie rod and the second tie rod is adopted. The "V" shape is connected and cross-positioned to ensure the stability of the connecting frame and prevent twisting.

Benefits of technology

Effectively prevent the twisting of the tower crane column frame, improve the stability of the entire column frame, and enhance the fixing effect away from the wall columns.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of tower crane attachment steel structures, and specifically relates to a wall attachment steel structure for a tower crane with high stability, including: a connection frame, the connection frame includes four connection columns and four "L"-shaped connection brackets; the two outer side walls of the connection angle iron are respectively fixedly connected to the inner side wall of the "L"-shaped connection bracket and the surface of the tower crane column; there are two connection seats, and the first pull rod and the second pull rod are in a "V" shape, the two first pull rods are respectively located on both sides of the connection frame, and the two second pull rods cross each other; the positioning buckle plate is set to be arc-shaped and buckles on the outside of the second pull rod; the beneficial effect is that: by connecting the first pull rod and the second pull rod on the connection seat, the end parts of the two first pull rods are respectively connected to both sides of the connection frame and can fasten the two second pull rods, thereby preventing the second pull rod from rotating. Therefore, this device can effectively prevent the connection frame from twisting, and further avoid the twisting of the column frame of the tower crane, which affects the stability.
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Description

Technical Field

[0001] The present invention relates to the technical field of tower crane attached steel structures, and specifically to a wall-attached steel structure for a tower crane with high stability. Background Art

[0002] When the tower crane exceeds a certain height, it is necessary to set supports on the building to keep the tower crane stable, and the object playing the supporting role is the attached steel structure.

[0003] In the prior art, the attached steel structure of the tower crane is used to connect the tower crane and the building wall, and the steel structure is fixed to the wall by bolts to prevent the tower crane from tilting.

[0004] However, currently, when the attached steel structure of the tower crane fixes the column of the tower crane, it can usually only maintain good positioning for the two columns close to the wall, but the stability of the two columns far from the wall is relatively poor, and the entire column frame of the tower crane is prone to torsional deformation in the air, thus affecting the overall stability of the column frame. Therefore, the present invention proposes a wall-attached steel structure for a tower crane with high stability to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a wall-attached steel structure for a tower crane with high stability to solve the problem that the column frame of the tower crane is prone to torsional deformation in the air and affects the stability as proposed in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A wall-attached steel structure for a tower crane with high stability, comprising:

[0007] A connection frame, the connection frame includes four connection columns and four "L"-shaped connection brackets. The four connection columns form a rectangular structure. The four "L"-shaped connection brackets are respectively located at the four corners of the connection frame, and the "L"-shaped connection brackets are fixedly connected to the ends of the connection columns. The "L"-shaped connection brackets are buckled on the outside of the tower crane column;

[0008] Connection angle irons, the two outer side walls of the connection angle irons are respectively fixedly connected to the inner side wall of the "L"-shaped connection bracket and the surface of the tower crane column;

[0009] Connection seats, there are two connection seats. Both connection seats are fixed to the wall by bolts. A first pull rod and a second pull rod are rotatably connected to the connection seats, and the first pull rod and the second pull rod are in a "V" shape. One end of the first pull rod and one end of the second pull rod are rotatably connected to a hinge support, and the hinge support is fixedly connected to the side surface of the end of the connection column. The two first pull rods are respectively located on both sides of the connection frame. One end of the first pull rod is located outside the tower crane column far from the wall, one end of the second pull rod is located outside the tower crane column close to the wall, and the two second pull rods cross each other;

[0010] Positioning buckle plates, there are two of the positioning buckle plates, and the two positioning buckle plates are respectively located on the upper and lower sides of the intersection of the two second pull rods. The positioning buckle plates are arranged in an arc shape and buckle on the outer sides of the second pull rods. Both sides of the positioning buckle plates are fixedly connected with convex plates, long strip holes are penetrated through the surfaces of the convex plates, friction lines are arranged on the inner side walls of the positioning buckle plates, and the two positioning buckle plates are fixedly connected through bolts.

[0011] Preferably, the first pull rod includes a first double-headed screw sleeve, both ends of the first double-headed screw sleeve are movably inserted with first threaded columns through threads, one end of a first threaded column is rotatably connected with a connecting seat through a pin shaft, and the end of the other first threaded column is fixedly connected with a first connecting rod.

[0012] Preferably, there are multiple first connecting rods, and the multiple first connecting rods are kept fixed through connecting flanges. One end of the first connecting rod away from the first threaded column is fixedly connected with a connecting block, and the connecting block is rotatably connected with a hinge support through a pin shaft.

[0013] Preferably, the second pull rod includes a second double-headed screw sleeve, both ends of the second double-headed screw sleeve are movably inserted with second threaded columns through bolts, one end of a second threaded column is rotatably connected with a connecting seat through a pin shaft, and the end of the other second threaded column is fixedly connected with a second connecting rod, and the end of the second connecting rod is rotatably connected with a hinge support through a pin shaft.

[0014] Preferably, the connecting column includes two rectangular columns located on the same straight line. Rectangular flanges are fixedly connected to the ends of the two rectangular columns close to each other, and the two rectangular flanges are fixedly connected through bolts.

[0015] Preferably, rectangular installation grooves are arranged on the outer side walls at both ends of the "L"-shaped connecting frame. A "cross"-shaped insertion plate is fixedly connected to one inner wall of the rectangular installation groove, and a chamfer is arranged at the end of the "cross"-shaped insertion plate.

[0016] Preferably, the end of the rectangular column is located in the inner cavity of the rectangular installation groove and is adapted to it. A "cross"-shaped slot is arranged on the end face of the rectangular column, and the "cross"-shaped insertion plate corresponds to the "cross"-shaped slot and is movably inserted.

[0017] Preferably, multiple rows of second positioning holes are arranged on the upper and lower surfaces at the end of the rectangular column, multiple rows of first positioning holes are arranged on the upper and lower surfaces at both ends of the "L"-shaped connecting frame, and the end of the rectangular column and the "L"-shaped connecting frame are fixedly connected through bolts.

[0018] Preferably, a stiffening plate is fixedly connected to the inner side of the connecting angle iron. Multiple rows of third positioning holes are formed in the inner side walls at both ends of the "L"-shaped connecting frame. Multiple rows of through holes are formed in the surface of the connecting angle iron. The connecting angle iron and the "L"-shaped connecting frame are fixedly connected by bolts, and the connecting angle iron and the tower crane column are fixedly connected by bolts.

[0019] Preferably, protective layers are bonded to the surfaces of the first double-headed screw sleeve and the second double-headed screw sleeve, and the protective layers are made of rubber materials.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] In the present invention, a first pull rod and a second pull rod are connected to the connecting seat. The end parts of the two first pull rods are respectively connected to both sides of the connecting frame. The two second pull rods cross each other and are connected to the side of the connecting frame close to the wall. Two positioning buckle plates are arranged at the intersection of the two second pull rods. The two positioning buckle plates are fixedly connected by bolts and can fasten the two second pull rods, thereby preventing the second pull rod from rotating. Therefore, the device can effectively prevent the connecting frame from twisting, and further avoid the twisting of the column frame of the tower crane, which affects the stability. In addition, the first pull rod tightens the side of the connecting frame, which can further enhance the stability of the tower crane column frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top-down schematic view of the overall structure of the present invention;

[0023] Figure 2 It is a schematic connection diagram of the "L"-shaped connecting frame and the tower crane column of the present invention;

[0024] Figure 3 It is a three-dimensional schematic view of the "L"-shaped connecting frame structure of the present invention;

[0025] Figure 4 It is a schematic connection diagram of the rectangular column and the first connecting rod of the present invention;

[0026] Figure 5 It is a schematic connection diagram of the positioning buckle plate and the second connecting rod of the present invention;

[0027] Figure 6 It is a three-dimensional schematic view of the positioning buckle plate structure of the present invention;

[0028] Figure 7 It is a schematic connection diagram of the first double-headed screw sleeve and the first threaded column of the present invention.

[0029] In the figure: 1. Connecting column; 2. "L"-shaped connecting frame; 3. Tower crane column; 4. Connecting angle iron; 5. Connecting seat; 6. First pull rod; 7. Second pull rod; 8. Hinge support; 9. Positioning buckle plate; 10. Convex plate; 11. Long strip hole; 12. Friction pattern; 13. First double-headed screw sleeve; 131. Protective layer; 14. First threaded column; 15. First connecting rod; 151. Connecting block; 16. Connecting flange; 17. Second double-headed screw sleeve; 18. Second threaded column; 19. Second connecting rod; 20. Rectangular column; 21. Rectangular flange; 22. Rectangular installation groove; 23. "Cross"-shaped insertion plate; 24. Chamfer; 25. First positioning hole; 26. "Cross"-shaped slot; 27. Second positioning hole; 28. Reinforcing plate; 29. Third positioning hole. Specific implementation mode

[0030] In order to clearly and completely describe the purpose, technical solution of the present invention and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by referring to examples. In the following description, many specific details are set forth to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring these embodiments. Additionally, all embodiments can be used in combination with each other.

[0034] Please refer to Figures 1 to 7 , the present invention provides a technical solution:

[0035] Embodiment 1

[0036] A wall-attached steel structure for a tower crane with high stability, comprising: a connection frame, connecting angle irons 4, connection seats 5 and positioning buckle plates 9.

[0037] Specifically, the connection frame includes four connection columns 1 and four "L"-shaped connection brackets 2. The four connection columns 1 are assembled into a rectangular structure. The four "L"-shaped connection brackets 2 are respectively located at the four corners of the connection frame, and the "L"-shaped connection brackets 2 are fixedly connected to the ends of the connection columns 1. The "L"-shaped connection brackets 2 and the connection columns 1 as a whole form a square structure. The "L"-shaped connection brackets 2 are buckled on the outside of the tower crane column 3, which can limit the tower crane column 3 to prevent the four tower crane columns 3 from moving away from each other;

[0038] Secondly, the two outer side walls of the connecting angle iron 4 are respectively fixedly connected to the inner side wall of the "L"-shaped connection bracket 2 and the surface of the tower crane column 3. The setting of the connecting angle iron 4 is used to position the tower crane column 3, and at the same time can fix the "L"-shaped connection bracket 2 together with the connection column 1 on the tower crane column 3, so as to ensure that the four tower crane columns 3 are respectively located at the four corners of the connection frame and will not move relatively. In addition, the connection frame fixed on the tower crane column 3 can avoid falling under the action of gravity;

[0039] In addition, there are two connection seats 5. Both connection seats 5 are fixed to the wall by bolts. A first pull rod 6 and a second pull rod 7 are rotatably connected to the connection seat 5, and the first pull rod 6 and the second pull rod 7 are in a "V" shape. One end of the first pull rod 6 and one end of the second pull rod 7 are rotatably connected to a hinge support 8, and the hinge support 8 is fixedly connected to the side surface of the end of the connection column 1. The two first pull rods 6 are respectively located on both sides of the connection frame. One end of the first pull rod 6 is located outside the tower crane column 3 far from the wall, and one end of the second pull rod 7 is located outside the tower crane column 3 close to the wall, and the two second pull rods 7 cross each other, as Figure 1 shown, the two first pull rods 6 are respectively located on both sides of the connection frame and are symmetrically distributed. The two first pull rods 6 are used to tension and position the side surface of the connection frame. The two second pull rods 7 cross each other in an "X" shape and tension and position the side of the connection frame close to the wall;

[0040] Furthermore, there are two positioning buckles 9, which are respectively located on the upper and lower sides of the intersection of the two second pull rods 7. The positioning buckles 9 are arranged in an arc shape and buckled on the outer sides of the second pull rods 7. Both sides of the positioning buckles 9 are fixedly connected with convex plates 10, and long strip holes 11 are penetrated through the surfaces of the convex plates 10. Friction lines 12 are arranged on the inner side walls of the positioning buckles 9. The two positioning buckles 9 are fixedly connected by bolts. The mutual fixation of the two positioning buckles 9 can fix the position where the two second pull rods 7 intersect, thereby preventing the second pull rods 7 from rotating and causing the connection frame to rotate or move. The arrangement of the long strip holes 11 ensures that although the two positioning buckles 9 intersect with each other, they can still be fixedly connected by bolts. At this time, the two second pull rods 7 are in an "X" shape and can maintain their positions fixed.

[0041] Embodiment 2

[0042] On the basis of Embodiment 1, in order to ensure that the length of the first pull rod 6 can be adjusted, the first pull rod 6 of the present application includes a first double-headed screw sleeve 13. Both ends of the first double-headed screw sleeve 13 are movably inserted with first threaded columns 14 through threads. One end of a first threaded column 14 is rotatably connected to the connection seat 5 through a pin shaft, and the other end of the first threaded column 14 is fixedly connected with a first connecting rod 15. There are multiple first connecting rods 15, and the multiple first connecting rods 15 are kept fixed through a connection flange 16. One end of the first connecting rod 15 far from the first threaded column 14 is fixedly connected with a connection block 151, and the connection block 151 is rotatably connected to the hinge support 8 through a pin shaft. The thread directions of the inner cavities at both ends of the first double-headed screw sleeve 13 are opposite. When the first double-headed screw sleeve 13 rotates, the distance between the two first threaded columns 14 can be adjusted, so as to ensure that the length of the entire first pull rod 6 can be adjusted according to the on-site requirements.

[0043] Embodiment 3

[0044] On the basis of Embodiment 2, in order to ensure that the overall length of the second pull rod 7 can be adjusted, the second pull rod 7 of the present application includes a second double-headed screw sleeve 17. Both ends of the second double-headed screw sleeve 17 are movably inserted with second threaded columns 18 through bolts. One end of a second threaded column 18 is rotatably connected to the connection seat 5 through a pin shaft, and the other end of the second threaded column 18 is fixedly connected with a second connecting rod 19. The end of the second connecting rod 19 is rotatably connected to the hinge support 8 through a pin shaft. The second double-headed screw sleeve 17 is the same as the first double-headed screw sleeve 13, and the thread directions at both ends are opposite. Therefore, when the second double-headed screw sleeve 17 is screwed, the overall length of the second pull rod 7 can be adjusted.

[0045] Embodiment 4

[0046] On the basis of Embodiment III, in order to prevent the connecting column 1 from being easily separated from the "L"-shaped connecting frame 2, the connecting column 1 of the present application includes two rectangular columns 20 located on the same straight line. Rectangular flanges 21 are fixedly connected to the ends of the two rectangular columns 20 close to each other, and the two rectangular flanges 21 are fixedly connected by bolts. Rectangular mounting grooves 22 are provided on the outer side walls at both ends of the "L"-shaped connecting frame 2. A "cross"-shaped insertion plate 23 is fixedly connected to the inner wall at one end of the rectangular mounting groove 22. A chamfer 24 is provided at the end of the "cross"-shaped insertion plate 23. The end of the rectangular column 20 is located in the inner cavity of the rectangular mounting groove 22 and is adapted thereto. A "cross"-shaped slot 26 is provided on the end face of the rectangular column 20. The "cross"-shaped insertion plate 23 and the "cross"-shaped slot 26 are exactly corresponding and are movably inserted. The end of the connecting column 1 can be inserted into the inner cavity of the rectangular mounting groove 22. The cooperation between the "cross"-shaped insertion plate 23 and the "cross"-shaped slot 26 can prevent the connecting column 1 from being easily separated from the "L"-shaped connecting frame 2.

[0047] Embodiment V

[0048] On the basis of Embodiment IV, in order to avoid deformation of the connecting frame, multi-rows of second positioning holes 27 are provided on the upper and lower surfaces at the end of the rectangular column 20 of the present application. Multi-rows of first positioning holes 25 are provided on the upper and lower surfaces at both ends of the "L"-shaped connecting frame 2. The end of the rectangular column 20 and the "L"-shaped connecting frame 2 are fixedly connected by bolts. The arrangement of the first positioning holes 25 and the second positioning holes 27 ensures that the connecting column 1 and the "L"-shaped connecting frame 2 can be fixed by multiple bolts, so as to ensure that the connecting frame formed by the connecting column 1 and the "L"-shaped connecting frame 2 has high stability and will not be easily deformed.

[0049] Embodiment VI

[0050] On the basis of Embodiment V, in order to prevent the relative positions of two adjacent tower crane columns 3 from changing, a reinforcing plate 28 is fixedly connected to the inner side of the connecting angle iron 4 of the present application. The reinforcing plate 28 is provided to strengthen the strength of the connecting angle iron 4 to prevent the connecting angle iron 4 from deforming. Multi-rows of third positioning holes 29 are provided on the inner side walls at both ends of the "L"-shaped connecting frame 2. Multi-rows of through holes are provided on the surface of the connecting angle iron 4. The connecting angle iron 4 and the "L"-shaped connecting frame 2 are fixedly connected by bolts. The connecting angle iron 4 and the tower crane column 3 are fixedly connected by bolts. Therefore, the connecting angle iron 4 can fix the "L"-shaped connecting frame 2 on the surface of the tower crane column 3, and the connecting angle iron 4 can position the tower crane column 3, thereby preventing the relative positions of two adjacent tower crane columns 3 from changing.

[0051] Embodiment VII

[0052] On the basis of the sixth embodiment, in order to ensure that the staff can rotate the first double-headed screw sleeve 13 or the second double-headed screw sleeve 17 more comfortably, a protective layer 131 is adhesively bonded to the surfaces of both the first double-headed screw sleeve 13 and the second double-headed screw sleeve 17 of the present application. The protective layer 131 is made of a rubber material. The setting of the protective layer 131 ensures that the staff can rotate the first double-headed screw sleeve 13 or the second double-headed screw sleeve 17 more comfortably, so as to adjust the length of the first pull rod 6 or the length of the second pull rod 7.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wall-attached steel structure for a tower crane with high stability, characterized in that: Comprising: A connecting frame, the connecting frame includes four connecting columns (1) and four "L"-shaped connecting brackets (2). The four connecting columns (1) form a rectangular structure. The four "L"-shaped connecting brackets (2) are respectively located at the four corners of the connecting frame, and the "L"-shaped connecting brackets (2) are fixedly connected to the ends of the connecting columns (1). The "L"-shaped connecting brackets (2) are buckled on the outer side of the tower crane column (3); Connecting angle irons (4), the two outer side walls of the connecting angle irons (4) are respectively fixedly connected to the inner side wall of the "L"-shaped connecting brackets (2) and the surface of the tower crane column (3); Connecting seats (5), there are two connecting seats (5). The two connecting seats (5) are both fixed on the wall by bolts. A first pull rod (6) and a second pull rod (7) are rotatably connected to the connecting seats (5). The first pull rod (6) and the second pull rod (7) are in a "V" shape. One end of the first pull rod (6) and one end of the second pull rod (7) are rotatably connected with a hinge support (8). The hinge support (8) is fixedly connected to the side surface of the end of the connecting column (1). The two first pull rods (6) are respectively located on both sides of the connecting frame. One end of the first pull rod (6) is located on the outer side of the tower crane column (3) away from the wall, and one end of the second pull rod (7) is located on the outer side of the tower crane column (3) close to the wall, and the two second pull rods (7) cross each other; Positioning buckle plates (9), there are two positioning buckle plates (9). The two positioning buckle plates (9) are respectively located on the upper and lower sides of the intersection of the two second pull rods (7). The positioning buckle plates (9) are set to be arc-shaped and buckled on the outer side of the second pull rods (7). Both sides of the positioning buckle plates (9) are fixedly connected with convex plates (10). Long strip holes (11) are formed through the surfaces of the convex plates (10). Friction stripes (12) are formed on the inner side walls of the positioning buckle plates (9). The two positioning buckle plates (9) are fixedly connected by bolts; The first pull rod (6) includes a first double-headed screw sleeve (13). Both ends of the first double-headed screw sleeve (13) are movably inserted with first threaded columns (14) through threads. One end of one first threaded column (14) is rotatably connected to the connecting seat (5) through a pin shaft, and the other end of the first threaded column (14) is fixedly connected with a first connecting rod (15); There are multiple first connecting rods (15), and the multiple first connecting rods (15) are kept fixed by connecting flanges (16). One end of the first connecting rod (15) away from the first threaded column (14) is fixedly connected with a connecting block (151). The connecting block (151) and the hinge support (8) are rotatably connected through a pin shaft; The second pull rod (7) includes a second double-headed screw sleeve (17). Both ends of the second double-headed screw sleeve (17) are movably inserted with second threaded posts (18) through bolts. One end of one second threaded post (18) is rotatably connected to the connecting seat (5) through a pin shaft, and the end of the other second threaded post (18) is fixedly connected to a second connecting rod (19). The end of the second connecting rod (19) is rotatably connected to the hinge support (8) through a pin shaft; The connecting column (1) includes two rectangular columns (20) located on the same straight line. Rectangular flanges (21) are fixedly connected to the mutually approaching ends of the two rectangular columns (20), and the two rectangular flanges (21) are fixedly connected through bolts; Rectangular mounting grooves (22) are formed in the outer side walls at both ends of the "L”-shaped connecting frame (2). A "cross”-shaped insertion plate (23) is fixedly connected to the inner wall of one end of the rectangular mounting groove (22), and a chamfer (24) is provided at the end of the "cross”-shaped insertion plate (23).

2. The wall-attached steel structure for a tower crane with high stability according to claim 1, wherein: The end of the rectangular column (20) is located in the inner cavity of the rectangular mounting groove (22) and is adapted thereto. A "cross”-shaped slot (26) is formed in the end face of the rectangular column (20), and the "cross”-shaped insertion plate (23) corresponds to the "cross”-shaped slot (26) and is movably inserted.

3. A wall-attached steel structure for a tower crane with high stability according to claim 2, characterized in that: Multiple rows of second positioning holes (27) are formed in the upper and lower surfaces of the end of the rectangular column (20). Multiple rows of first positioning holes (25) are formed in the upper and lower surfaces of both ends of the "L”-shaped connecting frame (2). The end of the rectangular column (20) and the "L”-shaped connecting frame (2) are fixedly connected through bolts.

4. A wall-attached steel structure for a tower crane with high stability according to claim 3, characterized in that: Reinforcing plates (28) are fixedly connected to the inner sides of the connecting angle irons (4). Multiple rows of third positioning holes (29) are formed in the inner side walls of both ends of the "L”-shaped connecting frame (2). Multiple rows of through holes are formed in the surfaces of the connecting angle irons (4). The connecting angle irons (4) and the "L”-shaped connecting frames (2) are fixedly connected through bolts, and the connecting angle irons (4) and the tower crane column (3) are fixedly connected through bolts.

5. A wall-attached steel structure for a tower crane with high stability according to claim 4, characterized in that: A protective layer (131) is bonded to the surfaces of the first double-headed screw sleeve (13) and the second double-headed screw sleeve (17). The protective layer (131) is made of rubber material.

Citation Information

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