Spliced tower crane

Abstract

The utility model provides a spliced tower crane which comprises a tower body provided with a plurality of spliced sections, and the spliced sections comprise a bottom spliced section located on the lower portion and a plurality of middle spliced sections located above the bottom spliced section. Splicing structures are arranged between the middle splicing sections and the bottom splicing sections and between every two adjacent middle splicing sections, each splicing structure comprises a limiting column and a limiting cavity which are arranged in the vertical direction, and the limiting columns detachably stretch into the limiting cavities so as to connect the splicing sections; the plurality of positioning columns are movably arranged in the limiting cavity; and the fixing pieces are movably arranged on the splicing sections and used for driving the positioning columns to abut against or be separated from the limiting columns. The tower crane solves the technical problem that a tower crane in the prior art is inconvenient to mount.

Description

Technical Field

[0001] This utility model relates to the field of tower crane equipment technology, and in particular to a modular tower crane. Background Technology

[0002] The construction of long-span arch bridges often presents numerous challenges, particularly in securing the arch ribs and hoisted box girders. To achieve this, a super-high tower is typically constructed to provide the necessary mounting and hoisting platform. During the erection of the super-high tower, individual splicing units can be pre-assembled on level ground, and then assembled into the entire tower at high altitude, significantly shortening the construction cycle and improving efficiency. However, in the operational phase, the connection between two splicing units is still manually achieved using bolts. This requires constant tightening of bolts on different splicing units, resulting in high labor intensity and making installation and disassembly time-consuming and labor-intensive, thus hindering practical use. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a modular tower crane, which solves the technical problem of inconvenient tower crane installation in existing technologies.

[0004] According to an embodiment of the present invention, a tower body has multiple splicing segments, the splicing segments including a bottom splicing segment located at the bottom, and multiple middle splicing segments located above the bottom splicing segment. The middle splicing segments and the bottom splicing segments and two adjacent middle splicing segments have splicing structures. The splicing structure includes a limiting post and a limiting cavity arranged in the vertical direction. The limiting post can be detachably extended into the limiting cavity to connect each splicing segment.

[0005] Multiple positioning posts are movably disposed within the limiting cavity;

[0006] A fastener, movably mounted on the splicing segment, is used to drive the positioning post to abut or separate from the limiting post.

[0007] Preferably, the limiting cavity is provided with a plurality of positioning holes in a circular array, and the plurality of positioning posts are provided in the positioning holes in a one-to-one correspondence.

[0008] Preferably, the limiting post is provided with multiple limiting holes, and the multiple limiting holes are respectively provided with multiple positioning posts, and the positioning posts can be detachably extended into the limiting holes.

[0009] Preferably, the fastener is threaded onto the splicing segment and abuts against the distal end of the positioning post.

[0010] Preferably, the fastener has an inclined surface that gradually tapers from top to bottom, and the inclined surface abuts against the distal end of the positioning post.

[0011] Preferably, the distal end of the positioning post is provided with an arc-shaped surface that is adapted to the inclined surface.

[0012] Preferably, the splicing segment is provided with a plurality of lifting lugs.

[0013] Compared to existing technologies, this invention offers the following advantages: the tower body is composed of multiple spliced ​​segments, facilitating flexible height adjustment of the tower crane according to construction needs. A splicing structure is provided between adjacent spliced ​​segments, simplifying the splicing process.

[0014] Meanwhile, fasteners are provided on the splicing segments to lock the segments together, so as to facilitate the disassembly or reassembly of each segment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the tower body in one embodiment of the present invention;

[0016] Figure 2 for Figure 1 A sectional view of the central tower section;

[0017] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0018] In the above attached figures: 1. Splicing segment; 2. Limiting post; 201. Limiting hole; 3. Limiting cavity; 4. Positioning hole; 5. Positioning post; 501. Arc-shaped surface; 6. Fixing component; 601. Inclined surface. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-Figure 3 As shown in the figure, this utility model embodiment proposes a modular tower crane, including:

[0021] The tower body has multiple splicing segments 1, including a bottom splicing segment 1 located at the bottom and multiple middle splicing segments 1 located above the bottom splicing segment 1. There are splicing structures between the middle splicing segments 1 and the bottom splicing segments 1 and between two adjacent middle splicing segments 1. The splicing structure includes a limiting post 2 and a limiting cavity 3 arranged in the vertical direction. The limiting post 2 can be detachably extended into the limiting cavity 3 to connect each splicing segment 1.

[0022] Multiple positioning posts 5 are movably disposed in the limiting cavity 3;

[0023] The fixing element 6 is movably disposed on the splicing segment 1 and is used to drive the positioning post 5 to abut or separate from the limiting post 2.

[0024] In this embodiment, the tower body is composed of multiple splicing segments 1. Each splicing segment 1 includes a bottom splicing segment 1 and multiple middle splicing segments 1 located above it. The bottommost splicing segment 1 serves as a node connecting to the tower crane base. The middle splicing segments 1 are then stacked sequentially on top of each other. This design allows the tower crane to flexibly adjust its height according to construction needs. To ensure the connection of the splicing segments 1, splicing structures are provided between the bottom splicing segment 1 and the middle splicing segments 1, as well as between the middle splicing segments 1 themselves. The splicing structure includes limiting posts 2 and limiting cavities 3 arranged vertically. The limiting posts 2 can be detachably inserted into the limiting cavities. In step 3, the connection between adjacent splicing segments 1 is achieved. To further strengthen the connection between splicing segments 1, multiple movable positioning posts 5 are set in the limiting cavity 3. The positioning posts 5 can abut against or separate from the limiting posts 2 under the action of the fixing parts 6 to ensure a firm connection between the splicing segments 1. The fixing parts 6 are installed between the bottom splicing segments 1, the middle splicing segments 1, or between adjacent middle splicing segments 1. The fixing parts 6 are used to move the positioning posts 5 under the drive of external force, so that they are in close contact with the limiting posts 2 to complete the locking between the splicing segments 1; or to separate the positioning posts 5 from the limiting posts 2 for easy disassembly or reassembly. This embodiment provides a quick and simple way to assemble and disassemble the tower body of a tower crane, while ensuring a stable connection between each splicing segment 1, which is especially important for construction sites that require frequent adjustments to the tower crane height or transfer of the tower crane between different locations. In addition, it can reduce the labor intensity and time cost during the assembly and disassembly of the tower crane, and improve work efficiency.

[0025] The limiting cavity 3 is arranged in a circular array with multiple positioning holes 4, and multiple positioning posts 5 are respectively located in the positioning holes 4.

[0026] In this embodiment, the limiting cavity 3 is provided with multiple positioning holes 4. The positioning holes 4 are arranged in a circumferential array, which helps to ensure that the positioning post 5 is subjected to uniform force in all directions, thereby improving the stability and reliability of the connection. The positioning post 5 is set in a one-to-one correspondence with the positioning hole 4. By precisely matching the positioning post 5 with the positioning hole 4, the connection strength between the splicing segments 1 can be significantly improved. When the fixing member 6 drives the positioning post 5 to move, the positioning post 5 will be embedded in the positioning hole 4 and form a tight contact with the limiting post 2, thereby realizing a stable connection between the two splicing segments 1.

[0027] The limiting post 2 is provided with a plurality of limiting holes 201, and the plurality of limiting holes 201 are provided in a one-to-one correspondence with the plurality of positioning posts 5. The positioning posts 5 can be detachably extended into the limiting holes 201.

[0028] In this embodiment, each limiting post 2 is provided with multiple limiting holes 201, which cooperate with the positioning post 5 to ensure that the positioning post 5 can be accurately inserted and fixed in the limiting post 2. This can significantly improve the connection strength between the splicing segments 1, ensure the stability of the tower crane during operation, and reduce the safety risks caused by weak connections. The detachable design facilitates quick installation and disassembly, greatly saving time and labor costs. It also allows the tower crane to flexibly adjust its height according to actual construction needs and can be quickly transferred and reassembled between different sites, adapting to various complex construction site environments.

[0029] The fastener 6 is threaded onto the splicing segment 1 and abuts against the distal end of the positioning post 5.

[0030] In this embodiment, the fixing member 6 is installed on the splicing segment 1 by a threaded connection. By rotating the fixing member 6, it can abut against the distal end of the positioning post 5, causing it to push or release the distal end of the positioning post 5, making it tightly contact or separate from the limiting hole 201 on the limiting post 2. When it is necessary to connect two splicing segments 1, first insert the limiting post 2 into the limiting cavity 3 and align the positioning post 5 with the limiting hole 201. Then, by rotating the fixing member 6 clockwise, it moves upward on the splicing segment 1 until it is in contact with the positioning post 5. With the distal ends abutting each other, continue rotating the fixing member 6. The fixing member 6 applies pressure to make the positioning post 5 fully extend into the limiting hole 201, ensuring a firm connection between the splicing segments 1. If the splicing segment 1 needs to be disassembled or readjusted, simply rotate the fixing member 6 in the opposite direction to reduce the pressure on the positioning post 5, so that the positioning post 5 can be pulled out from the limiting hole 201. The splicing segment 1 can be easily separated. The positioning post 5 can be pushed forward or retracted through a simple rotation action, which greatly simplifies the connection and disassembly process of the splicing segment 1 and improves work efficiency.

[0031] The fixing member 6 has an inclined surface 601 that gradually tapers from top to bottom, and the inclined surface 601 abuts against the distal end of the positioning post 5; furthermore, the distal end of the positioning post 5 is provided with an arc-shaped surface 501 that is adapted to the inclined surface 601.

[0032] In this embodiment, the inclined surface 601 design allows the fixing member 6 to gradually increase the pressure on the positioning column 5 during rotation, ensuring tight contact between the positioning column 5 and the limiting hole 201, thereby improving the safety and stability of the entire tower crane structure. The inclined surface 601 provides a wedge-like effect, increasing the friction between the fixing member 6 and the positioning column 5, which helps prevent the fixing member 6 from accidentally loosening during operation and enhances the self-locking performance. Compared with direct contact, the inclined surface 601 design can reduce the direct impact between the fixing member 6 and the positioning column 5, thereby reducing wear and extending service life. The far end of the positioning post 5 has an arc-shaped surface 501 that matches the inclined surface 601 of the fixing member 6. This ensures a smooth transition and uniform force distribution when the two are in contact. When the fixing member 6 rotates clockwise and moves upward, its inclined surface 601 gradually approaches the far end of the positioning post 5. Due to the design of the arc-shaped surface 501 at the far end of the positioning post 5, a gradual pressure transmission can be formed when the two are in contact, allowing the positioning post 5 to be more smoothly embedded in the limiting hole 201. The cooperation between the arc-shaped surface 501 and the inclined surface 601 reduces the friction and impact between the two, improving the smoothness and reliability of the connection. When the fixing member 6 is rotated in the opposite direction to separate the splicing segment 1, the inclined surface 601 gradually moves away from the far end of the positioning post 5.

[0033] In summary, by setting an arc-shaped surface 501 at the distal end of the positioning column 5 that matches the inclined surface 601 of the fixing component 6, not only is the connection stability and ease of operation of the modular tower crane improved, but the system's durability and self-locking performance are also enhanced. This improvement is particularly important for construction sites where frequent adjustments to the tower crane height or rapid assembly and disassembly are required, while also providing strong guarantees for construction safety and efficiency.

[0034] The splicing segment 1 is provided with several lifting lugs.

[0035] In this embodiment, by setting several lifting lugs (not shown) on the splicing segment 1, the splicing segments 1 are overlapped and spliced ​​in sequence, which improves the assembly and disassembly efficiency of the splicing tower crane. This is especially important for construction sites that require frequent adjustment of the tower crane height or rapid assembly and disassembly.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A modular tower crane, characterized in that, include: The tower body has multiple splicing segments, including a bottom splicing segment located at the bottom and multiple middle splicing segments located above the bottom splicing segment. There are splicing structures between the middle splicing segments and the bottom splicing segments and between two adjacent middle splicing segments. The splicing structure includes a limiting post and a limiting cavity arranged in the vertical direction. The limiting post can be detachably extended into the limiting cavity to connect each splicing segment. Multiple positioning posts are movably disposed within the limiting cavity; A fastener, movably mounted on the splicing segment, is used to drive the positioning post to abut or separate from the limiting post.

2. The modular tower crane as described in claim 1, characterized in that, The limiting cavity is arranged in a circular array with multiple positioning holes, and the multiple positioning posts are respectively located in the positioning holes.

3. A modular tower crane as described in claim 2, characterized in that, The limiting post is provided with multiple limiting holes, and the multiple limiting holes are respectively arranged in a one-to-one correspondence with the multiple positioning posts. The positioning posts can be detachably extended into the limiting holes.

4. A modular tower crane as described in any one of claims 1-3, characterized in that, The fastener is threaded onto the splicing segment and abuts against the distal end of the positioning post.

5. A modular tower crane as described in claim 4, characterized in that, The fastener has an inclined surface that gradually tapers from top to bottom, and the inclined surface abuts against the distal end of the positioning post.

6. A modular tower crane as described in claim 5, characterized in that, The distal end of the positioning post is provided with an arc-shaped surface that is adapted to the inclined surface.

7. A modular tower crane as described in claim 1, characterized in that, The splicing segment is equipped with several lifting lugs.

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