Conversion joint suitable for correcting perpendicularity of tower crane

Abstract

The utility model relates to a conversion joint, belongs to the technical field of tower crane conversion joints, in particular to a conversion joint suitable for correcting the perpendicularity of a tower crane, which comprises a conversion joint body, the conversion joint body comprises four main chord members, a plurality of connecting sleeves are fixedly mounted at the upper ends and the lower ends of the side walls of the main chord members, and an adjusting assembly is arranged outside the conversion joint body. The adjusting assembly comprises four adjusting columns, adjusting grooves are formed in the bottom wall surfaces of the adjusting columns, mounting discs are arranged in the adjusting grooves, connecting columns are fixedly mounted on the bottom wall surfaces of the mounting discs, and fixing shafts are arranged outside the connecting columns; according to the utility model, the adjusting columns are arranged at the bottoms of the adjacent main chord members through the connecting sleeves on the adjusting columns and the connecting sleeves on the main chord members, the connecting columns are arranged at the top ends of the adjacent main chord members in a sliding manner, and the main chord member at the top rotates around the positioning shaft, so that the effect of adjusting the angle of the conversion joint body is achieved; the problem that the angle of an existing conversion joint cannot be adjusted is solved.

Description

Technical Field

[0001] This utility model relates to the field of tower crane transition joint technology, and in particular to a transition joint suitable for correcting the verticality of tower cranes. Background Technology

[0002] The tower crane transition section is an important component of the tower crane, mainly used to connect the anchor piles in the tower crane mounting base to the support legs of the standard section at the bottom of the tower crane.

[0003] A search revealed Chinese patent CN218088684U, which discloses a lightweight tower crane tower body transition section. This section includes a transition section main chord, horizontal web members, diagonal braces, diagonal web members, and connecting sleeves. The four transition section main chords are connected in pairs via horizontal web members to form a cuboid frame structure. A diagonal brace is welded to the upper and lower sides of each pair of diagonally opposite transition section main chords, forming a stable triangular structure that constitutes the main frame of the transition section. Two connecting sleeves are welded to the upper and lower ends of each transition section main chord. The advantages of this patent are: simple structure and short production cycle; lightweight structure, small weight, and low production cost; minimal welding requirements, allowing for rapid deployment; and the inclusion of a ladder for easy climbing and safe operation.

[0004] In the aforementioned existing technical solution, a cuboid frame structure is formed by connecting four main chords of the transition section in pairs with horizontal web members. A diagonal brace is welded to the upper and lower sides of each pair of diagonal main chords of the transition section to form a stable triangular structure that constitutes the main frame of the transition section. The main frame is fixed. However, during the construction of the tower crane foundation, the concrete pouring and vibration process may cause slight displacement of the support reinforcement bars, resulting in a verticality deviation of more than 0.4% after the tower crane is installed. This situation is very troublesome. Redoing the foundation would result in a lot of waste, and continued use would pose a significant safety hazard. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes a conversion joint suitable for correcting the verticality of tower cranes. By installing the adjusting column at the bottom of the adjacent main chord and the connecting sleeve on the adjusting column and the connecting sleeve on the main chord, the connecting column is slidably installed at the top of the adjacent main chord, and the main chord at the top is rotated around the positioning axis, thereby achieving the effect of adjusting the angle of the conversion joint body.

[0006] The technical solution for achieving the purpose of this utility model is as follows: a transition joint suitable for correcting the verticality of a tower crane, comprising a transition joint body, the transition joint body including four main chords, multiple connecting sleeves fixedly installed at the upper and lower ends of the side walls of the main chords, four lower horizontal web members and four upper horizontal web members provided on the outside of the four main chords, and diagonal web members provided between the lower horizontal web members and the upper horizontal web members, the main chords being hollow rectangular bodies, an adjustment assembly provided on the outside of the transition joint body, the adjustment assembly including four adjustment columns, multiple connecting sleeves also fixedly installed on the side walls of the adjustment columns, an adjustment groove opened on the bottom wall of the adjustment column, an installation plate provided inside the adjustment groove, a positioning shaft fixedly installed on the side wall of the installation plate, the positioning shaft being rotatably installed on the inner side wall of the adjustment groove, a connecting column fixedly installed on the bottom wall of the installation plate, the bottom end of the connecting column being slidably installed inside the adjacent main chord, a fixed shaft provided on the outside of the connecting column, the fixed shaft penetrating the interior of the main chords and the connecting column.

[0007] In some embodiments, the four main chord members are connected in pairs by lower and upper horizontal web members to form a cuboid frame structure, and the diagonal web members are welded to the lower and upper horizontal web members at opposite corners and to the adjacent end of the main chord members.

[0008] In some embodiments, four fixed crossbars are provided on the outside of the four adjustment columns, and the four adjustment columns are connected in pairs by the fixed crossbars to form a rectangular structure.

[0009] In some embodiments, a positioning assembly is provided on the outside of the main chord. The positioning assembly includes a reinforcing groove formed on the side wall of the upper crossbar and the fixed crossbar. The reinforcing grooves on the lower crossbar and the fixed crossbar are aligned with each other, and the internal threads of the two aligned reinforcing grooves are fitted with reinforcing bolts.

[0010] In some embodiments, two support nuts are threaded onto the sidewall of the reinforcing bolt.

[0011] In some embodiments, a buffer pad is threaded onto the top of the side wall of the fixed crossbar, and the buffer pad is made of a deformable material.

[0012] Compared with the prior art, the significant advantages of this utility model are:

[0013] Firstly, this utility model involves installing the adjusting column at the bottom of adjacent main chords by connecting the connecting sleeves on the adjusting column and the main chord. Then, the connecting column is slidably installed at the top of adjacent main chords. At this point, the main chord at the top can rotate around the positioning shaft, adjusting its angle and thus the angle of the transition section body. After the angle of the transition section body at the top is adjusted, through holes are opened on the side walls of the main chord and the connecting column. A fixing shaft then passes through the through holes to restrict the position of the connecting column, ensuring its stability and achieving the effect of adjustable transition section body angle. This solves the problem of existing transition sections having no adjustable angle.

[0014] Secondly, this utility model involves threading two support nuts onto the side wall of the reinforcing bolt. By rotating the two support nuts to opposite sides, the opposite side walls of the two support nuts on the reinforcing bolt are made to fit against the side walls of the upper horizontal bar and the fixed horizontal bar, respectively. This allows the fixed horizontal bar to support the fixed horizontal bar and the upper horizontal bar, ensuring the stability of the adjustment component's position and preventing the adjustment column from rotating around the positioning axis, which could cause changes in the angle of the transition section body near the top. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the adjusting column of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the reinforcing bolt of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Main chord; 2. Lower horizontal web member; 3. Upper horizontal web member; 4. Diagonal web member; 5. Connecting sleeve; 6. Adjusting column; 7. Adjusting groove; 8. Mounting plate; 9. Positioning shaft; 10. Connecting column; 11. Fixed shaft; 12. Fixed crossbar; 13. Reinforcing groove; 14. Reinforcing bolt; 15. Support nut; 16. Buffer pad. Detailed Implementation

[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] This utility model provides an improved conversion joint suitable for correcting the verticality of tower cranes. The technical solution of this utility model is as follows:

[0023] like Figures 1-3 As shown, a transition joint suitable for correcting the verticality of a tower crane includes a transition joint body. The transition joint body includes four main chords 1, each main chord 1 being a hollow rectangular body. Multiple connecting sleeves 5 are fixedly installed at both the upper and lower ends of the side walls of the main chords 1. Four lower horizontal web members 2 and four upper horizontal web members 3 are provided on the outside of the four main chords 1. The four main chords 1 are connected in pairs via the lower horizontal web members 2 and upper horizontal web members 3 to form a cuboid frame structure. Diagonal web members 4 are provided between the lower horizontal web members 2 and upper horizontal web members 3, welded to the diagonal points of the lower horizontal web members 2 and upper horizontal web members 3 and welded to the end of the main chord 1 closest to it. An adjustment assembly is provided on the outside of the transition joint body. The adjustment assembly includes four adjustment columns 6, each with multiple connecting sleeves 5 fixedly installed on its side wall. An adjustment groove 7 is formed on the bottom wall of the adjustment column 6, and an installation plate 8 is provided inside the adjustment groove 7. A positioning shaft 9 is fixedly installed on the side wall of the installation plate 8, and the positioning shaft 9 is rotatably mounted on the adjustment... A connecting column 10 is fixedly installed on the inner wall of the groove 7 and the bottom wall of the mounting plate 8. The bottom end of the connecting column 10 is slidably installed inside the adjacent main chord 1. A fixed shaft 11 is provided on the outside of the connecting column 10, and the fixed shaft 11 passes through the interior of the main chord 1 and the connecting column 10. The adjusting column 6 is installed at the bottom of the adjacent main chord 1 by connecting sleeve 5 on the adjusting column 6 and connecting sleeve 5 on the main chord 1. Then the connecting column 10 is slidably installed at the top of the adjacent main chord 1. At this time, the main chord 1 at the top can be rotated around the positioning shaft 9 to adjust the angle of the main chord 1 at the top and adjust the angle of the transition section body. After the angle of the transition section body at the top is adjusted, through holes are opened on the side walls of the main chord 1 and the connecting column 10. Then the fixed shaft 11 passes through the interior of the through holes to restrict the position of the connecting column 10, ensure the stability of the position of the connecting column 10, and fix the angle of the main chord 1 at the top.

[0024] like Figures 1-3As shown, in one embodiment, to further ensure the positional stability of the transition section body, four fixed crossbars 12 are provided on the outside of the four adjusting columns 6. The four adjusting columns 6 are connected in pairs by the fixed crossbars 12 to form a rectangular structure. The four adjusting columns 6 are fixedly connected together by the four fixed crossbars 12 to ensure the positional stability of the four adjusting columns 6. A positioning assembly is provided on the outside of the main chord 1. The positioning assembly includes reinforcing grooves 13 opened on the side walls of the upper crossbar 3 and the fixed crossbar 12. The reinforcing grooves 13 on the lower crossbar 2 and the fixed crossbar 12 are aligned with each other. Reinforcing bolts 14 are installed in the internal threads of the two aligned reinforcing grooves 13. Two support nuts 15 are installed in the threaded side walls of the reinforcing bolts 14. By installing the two support nuts 15 in the threaded side walls of the reinforcing bolts 14, the two support nuts 15 are rotated to the side away from each other. The adjustment mechanism moves such that the two supporting nuts 15 on the reinforcing bolt 14 are positioned so that their opposite sides are aligned with the side walls of the upper horizontal bar 3 and the fixed horizontal bar 12, respectively. This allows the fixed horizontal bar 12 to support both the upper horizontal bar 3 and the fixed horizontal bar 12, ensuring the stability of the adjustment assembly and preventing the adjusting column 6 from rotating around the positioning shaft 9, which could cause a change in the angle of the transition section body near the top. A buffer pad 16, made of a deformable material, is threaded onto the top of the side wall of the fixed horizontal bar 12. By rotating the buffer pad 16, it moves upward to align with the bottom wall of the fixed horizontal bar 12. As the angle of the transition section body at the top changes, the buffer pad 16 fills the gap between the supporting nut 15 at the top and the fixed horizontal bar 12, ensuring that the supporting nut 15 near the top can support the fixed horizontal bar 12.

[0025] The specific working method is as follows: Adjusting column 6 is installed at the bottom of the adjacent main chord 1 by connecting sleeve 5 on the adjusting column 6 and connecting sleeve 5 on the main chord 1. Then, connecting column 10 is slidably installed at the top of the adjacent main chord 1. At this time, the main chord 1 at the top can be rotated around the positioning shaft 9 to adjust the angle of the main chord 1 at the top, thereby adjusting the angle of the transition joint body. After the angle of the transition joint body at the top is adjusted, through holes are opened on the side walls of the main chord 1 and connecting column 10. Then, the fixing shaft 11 passes through the interior of the through holes to adjust the angle of the connecting column 10. The position is restricted to ensure the stability of the connecting column 10. Two support nuts 15 are threaded onto the side wall of the reinforcing bolt 14. The two support nuts 15 are rotated to the opposite side, so that the opposite side wall of the two support nuts 15 on the reinforcing bolt 14 is in contact with the side wall of the upper horizontal bar 3 and the fixed horizontal bar 12 respectively. This allows the fixed horizontal bar 12 to support the fixed horizontal bar 12 and the upper horizontal bar 3, ensuring the stability of the position of the adjusting component and preventing the adjusting column 6 from rotating around the positioning shaft 9, which would cause the angle of the transition section body near the top to change.

[0026] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A transition joint suitable for correcting the verticality of a tower crane, comprising a transition joint body, the transition joint body comprising four main chords (1), with multiple connecting sleeves (5) fixedly installed at both the upper and lower ends of the side walls of the main chords (1), four lower horizontal web members (2) and four upper horizontal web members (3) provided on the outside of the four main chords (1), and a diagonal web member (4) provided between the lower horizontal web members (2) and the upper horizontal web members (3), characterized in that: The main chord (1) is a hollow rectangular body. An adjustment assembly is provided on the outside of the transition section body. The adjustment assembly includes four adjustment columns (6). Multiple connecting sleeves (5) are also fixedly installed on the side wall of the adjustment column (6). An adjustment groove (7) is opened on the bottom wall of the adjustment column (6). An installation plate (8) is provided inside the adjustment groove (7). A positioning shaft (9) is fixedly installed on the side wall of the installation plate (8). The positioning shaft (9) is rotatably installed on the inner side wall of the adjustment groove (7). A connecting column (10) is fixedly installed on the bottom wall of the installation plate (8). The bottom end of the connecting column (10) is slidably installed inside the adjacent main chord (1). A fixed shaft (11) is provided on the outside of the connecting column (10). The fixed shaft (11) passes through the inside of the main chord (1) and the connecting column (10).

2. The conversion joint for correcting the verticality of a tower crane according to claim 1, characterized in that: The four main chord members (1) are connected in pairs by the lower horizontal web members (2) and the upper horizontal web members (3) to form a cuboid frame structure. The diagonal web members (4) are welded to the lower horizontal web members (2) and the upper horizontal web members (3) at opposite corners and are welded to the end of the main chord member (1) that is close to it.

3. A conversion joint for correcting the verticality of a tower crane according to claim 1, characterized in that: The four adjustment columns (6) are provided with four fixed crossbars (12) on the outside. The four adjustment columns (6) are connected in pairs by the fixed crossbars (12) to form a rectangular structure.

4. A conversion joint for correcting the verticality of a tower crane according to claim 3, characterized in that: The main chord (1) is provided with a positioning component on its exterior. The positioning component includes a reinforcing groove (13) on the side wall of the upper horizontal bar (3) and the fixed horizontal bar (12). The reinforcing grooves (13) on the lower horizontal bar (2) and the fixed horizontal bar (12) are aligned with each other. The internal threads of the two aligned reinforcing grooves (13) are fitted with reinforcing bolts (14).

5. A conversion joint for correcting the verticality of a tower crane according to claim 4, characterized in that: Two support nuts (15) are threaded onto the side wall of the reinforcing bolt (14).

6. A conversion joint for correcting the verticality of a tower crane according to claim 5, characterized in that: The top of the side wall of the fixed crossbar (12) is threaded with a buffer pad (16), which is made of a deformable material.

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