Base for mounting tower crane

By designing a threaded connection and a detachable extension plate structure for the tower crane base, the problem of the base lacking level adjustment and lateral expansion was solved, improving the stability and applicability of the tower crane and extending its service life.

CN223990866UActive Publication Date: 2026-03-13SHAANXI PANGYUAN MECHANICAL ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing tower crane bases lack bottom leveling adjustment and side expansion functions, resulting in tilted operation, reduced stability, and limited applicability.

Method used

A base for tower crane installation has been designed, comprising components such as a base, a fixing plate, a support rod, a screw, and an adjusting nut. The bottom level can be adjusted and the sides can be extended through threaded connections and a detachable extension plate, thereby increasing the contact area.

Benefits of technology

It enables leveling of the base and lateral expansion, improving the stability and flexibility of the tower crane, reducing component wear, and extending equipment life.

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Abstract

The utility model discloses a base for mounting a tower crane, which is applied to the field of tower crane bases and comprises a base, a fixing plate is arranged at the top of the base, a supporting rod is mounted at the top of the fixing plate, four first screw rods are embedded in the top of the base, the other end of the supporting rod penetrates through and extends to the top of the fixing plate, and the other end of the supporting rod penetrates through and extends to the top of the fixing plate. The surface of the first screw rod is in threaded connection with an adjusting nut and a fixing nut, the adjusting nut and the fixing nut are located at the bottom and the top of the fixing plate correspondingly, and threaded holes are formed in the two sides of the base correspondingly. According to the tower crane, the bottom levelness adjusting function can be achieved, operation is easy and convenient, unnecessary stress and abrasion borne by all components due to unbalance of the tower crane are reduced, the service life of equipment is prolonged, meanwhile, the side extension function can be achieved, the contact area between the bottom and the ground is increased, and the tower crane is convenient to transport and carry by personnel due to the detachable mode; and the stability and the flexibility of the equipment are improved.
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Description

Technical Field

[0001] This utility model relates to the field of tower crane bases, and in particular to a base for tower crane installation. Background Technology

[0002] A tower crane, also known as a tower hoist, is a rotating crane with its boom mounted on a tall tower. It offers a large working space and is primarily used for the vertical and horizontal transport of materials and the installation of building components during construction. During installation, a foundation is required at the base of the tower crane for load-bearing, stability, and ground protection. The tower crane foundation consists of four bases.

[0003] While existing tower crane bases offer high strength and good load-bearing capacity, they also present other problems during use. For example, they lack bottom leveling adjustment, resulting in a slight tilt when the base is not perfectly level after installation. This tilt becomes particularly noticeable during tower crane installation, potentially causing swaying during operation and leading to safety accidents. Furthermore, they lack side expansion capabilities, preventing flexible adjustment of the base area and hindering the increase in contact area between the base and the ground, thus reducing the base's applicability. To address these issues, we propose a new type of base for tower crane installation. Utility Model Content

[0004] The purpose of this utility model is to provide a base for tower crane installation, which solves the problems that existing bases do not have bottom level adjustment function and side expansion function.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a base for tower crane installation, including a base, a fixing plate provided on the top of the base, a support rod installed on the top of the fixing plate, four first screws embedded in the top of the base, the other end of the support rod penetrating and extending to the top of the fixing plate, an adjusting nut and a fixing nut being threadedly connected to the surface of the first screw, the adjusting nut and the fixing nut being located at the bottom and top of the fixing plate respectively, threaded holes being provided on both sides of the base, a second screw being threadedly connected inside the threaded holes, an extension plate that fits against the base being slidably sleeved on the surface of the second screw, and a locking nut being threadedly connected to the surface of the second screw.

[0006] By adopting the above technical solution, the bottom level can be adjusted, which is simple and convenient to operate. It reduces the unnecessary stress and wear on the components caused by the imbalance of the tower crane, thus extending the service life of the equipment. At the same time, it can also have a side expansion function, which increases the contact area between the bottom and the ground. The detachable design facilitates transportation and carrying by personnel, and improves the stability and flexibility of the equipment.

[0007] The present invention is further configured such that four reinforcing plates are installed at equal intervals between the top of the fixing plate and the support rod.

[0008] By adopting the above technical solution and setting up the reinforcing plate, the firmness between the fixing plate and the support rod can be enhanced.

[0009] The present invention is further configured such that: a mounting hole is provided at the top of the support rod.

[0010] By adopting the above technical solution, the installation holes facilitate connection with the base plate under the tower crane, reducing the hassle of temporary drilling.

[0011] The present invention is further configured such that: both sides of the support rod are provided with anti-pressure plates, and both ends of the anti-pressure plates are rotatably connected with connecting blocks, and the other side of the two connecting blocks are respectively bolted to the support rod and the extension plate.

[0012] By adopting the above technical solution, the extension plate and the support rod can be linked through the setting of the anti-compression plate and the connecting block, thereby improving the load-bearing capacity of the support rod.

[0013] The present invention is further configured such that two spring washers are slidably sleeved on the surface of the first screw.

[0014] By adopting the above technical solution and setting the spring washer, the fixing effect of the adjusting nut and the fixing nut after tightening can be improved, and the anti-vibration and anti-loosening functions can be achieved.

[0015] The present invention is further configured such that: the other end of the second screw is provided with an internal hexagonal groove.

[0016] By adopting the above technical solution, the internal hexagonal groove facilitates the installation and removal of the locking nut, and prevents the second screw from rotating along with the locking nut when it is turned.

[0017] The present invention is further configured such that the surfaces of the base, the fixing plate and the support rod are all coated with anti-corrosion coating.

[0018] By adopting the above technical solution and applying anti-corrosion coating, the anti-corrosion and moisture-proof effects of the base, fixing plate and support rod surfaces can be improved.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. This utility model involves first turning the adjusting nut onto the first screw, then lifting the fixing plate onto the base so that its bottom is in contact with the adjusting nut. Next, a tool is used to measure the levelness of the fixing plate. When it is tilted, the tool is used to grasp the adjusting nut and rotate it. During rotation, the adjusting nut moves upward and lifts the inclined surface of the fixing plate. Finally, the fixing nut is turned onto the first screw and tightened. This provides bottom levelness adjustment, is simple and convenient to operate, reduces unnecessary stress and wear on components caused by imbalance in the tower crane, and extends the service life of the equipment.

[0021] 2. This utility model involves first placing the extension plate onto the side of the base, ensuring the internal groove of the extension plate aligns with the threaded hole in the base, then inserting the second screw through the groove in the extension plate, and finally tightening it into the threaded hole in the base. After the second screw is fixed, the locking nut is tightened to secure the extension plate. Finally, the connecting blocks at both ends of the pressure-resistant plate are fixed to the support rod and the extension plate respectively. This design provides a side extension function, increases the contact area between the bottom and the ground, and is detachable for easy transport and carrying, improving the stability and flexibility of the equipment. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural view of the present invention;

[0023] Figure 2 This is a front sectional view of the structure of this utility model.

[0024] Reference numerals in the attached drawings: 1. Base; 2. Fixing plate; 3. Support rod; 4. First screw; 5. Adjusting nut; 6. Fixing nut; 7. Threaded hole; 8. Second screw; 9. Extension plate; 10. Locking nut; 11. Reinforcing plate; 12. Mounting hole; 13. Pressure-resistant plate; 14. Connecting block; 15. Spring washer. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1:

[0027] refer to Figure 1 and Figure 2A base for tower crane installation includes a base 1, a fixed plate 2 on the top of the base 1, a support rod 3 on the top of the fixed plate 2, and four first screws 4 embedded in the top of the base 1. The other end of the support rod 3 passes through and extends to the top of the fixed plate 2. The surface of the first screws 4 is threaded with adjusting nuts 5 and fixing nuts 6, which are located at the bottom and top of the fixed plate 2, respectively. By first turning the adjusting nut 5 onto the first screw 4, and then lifting the fixed plate 2 onto the base 1 so that its bottom is in contact with the adjusting nut 5, and then measuring the levelness of the fixed plate 2 with a tool, when it is tilted, the adjusting nut 5 is grasped and rotated with a tool. The adjusting nut 5 moves upward and lifts the inclined surface of the fixed plate 2 during rotation. Finally, the fixing nut 6 is turned onto the first screw 4 and tightened. This system has a bottom levelness adjustment function, is simple and convenient to operate, reduces unnecessary stress and wear on various components of the tower crane due to imbalance, and extends the service life of the equipment.

[0028] refer to Figure 1 and Figure 2 Four reinforcing plates 11 are installed at equal intervals between the top of the fixing plate 2 and the support rod 3. The reinforcement plates 11 enhance the firmness between the fixing plate 2 and the support rod 3.

[0029] refer to Figure 1 The top of the support rod 3 is provided with a mounting hole 12. The mounting hole 12 makes it easy to connect to the base plate under the tower crane, reducing the trouble of temporary drilling.

[0030] refer to Figure 2 Two spring washers 15 are slidably sleeved on the surface of the first screw 4. The setting of the spring washers 15 can improve the fixing effect after the adjusting nut 5 and the fixing nut 6 are tightened, and play a role in shock prevention and loosening prevention.

[0031] refer to Figure 1 and Figure 2 The surfaces of the base 1, the fixing plate 2, and the support rod 3 are all coated with anti-corrosion paint. The anti-corrosion and moisture-proof effects of the base 1, the fixing plate 2, and the support rod 3 are improved by the application of anti-corrosion paint.

[0032] Brief description of the usage process: First, turn the adjusting nut 5 onto the first screw 4. After turning the adjusting nut 5, lift the fixing plate 2 onto the base 1 so that its bottom is in contact with the adjusting nut 5. Then, use a tool to measure the levelness of the fixing plate 2. When it is tilted, use a tool to grasp the adjusting nut 5 and rotate it. When rotating, the adjusting nut 5 will move up and lift the inclined surface of the fixing plate 2. Finally, turn the fixing nut 6 onto the first screw 4 and tighten it.

[0033] Example 2:

[0034] refer to Figure 1 and Figure 2 A base for tower crane installation includes a base 1 with threaded holes 7 on both sides. A second screw 8 is threaded into the threaded holes 7. An extension plate 9, which is fitted to the base 1, is slidably sleeved on the surface of the second screw 8. A locking nut 10 is threaded into the surface of the second screw 8. The extension plate 9 is first placed against the side of the base 1, ensuring its internal groove aligns with the threaded hole 7 in the base 1. Then, the second screw 8 is removed and inserted through the groove in the extension plate 9, finally tightened into the threaded hole 7 in the base 1. After the second screw 8 is fixed, the locking nut 10 is tightened to secure the extension plate 9. Finally, the connecting blocks 14 at both ends of the pressure plate 13 are fixed to the support rod 3 and the extension plate 9 respectively. This design provides side expansion capability, increases the contact area between the bottom and the ground, and is detachable for easy transport and carrying, improving the stability and flexibility of the equipment.

[0035] refer to Figure 1 and Figure 2 Both sides of the support rod 3 are provided with anti-compression plates 13, and both ends of the anti-compression plates 13 are rotatably connected with connecting blocks 14. The other side of the two connecting blocks 14 is bolted to the support rod 3 and the extension plate 9 respectively. Through the setting of the anti-compression plates 13 and connecting blocks 14, the extension plate 9 and the support rod 3 can be linked, which improves the load-bearing effect of the support rod 3.

[0036] refer to Figure 1 The other end of the second screw 8 is provided with an internal hexagonal groove. The internal hexagonal groove facilitates the installation and removal of the locking nut 10 by personnel, and prevents the second screw 8 from rotating when the locking nut 10 is rotated.

[0037] Brief description of the usage process: First, place the extension plate 9 on the side of the base 1 to fit together. After the extension plate 9 is placed, the internal through groove should be aligned with the threaded hole 7 in the base 1. Then, take out the second screw 8 and insert it through the through groove in the extension plate 9. Finally, tighten it to fix it in the threaded hole 7 in the base 1. After the second screw 8 is fixed, tighten the locking nut 10 to fix the extension plate 9. Finally, fix the connecting blocks 14 at both ends of the pressure plate 13 to the support rod 3 and the extension plate 9 respectively.

[0038] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A base for a tower crane installation comprising a base (1), characterised in that: The top of the base (1) is provided with a fixed plate (2), the top of the fixed plate (2) is installed with a support rod (3), the top of the base (1) is inlaid with four first screw rods (4), the other end of the support rod (3) penetrates and extends to the top of the fixed plate (2), the surface of the first screw rod (4) is threadedly connected with an adjusting nut (5) and a fixed nut (6), the adjusting nut (5) and the fixed nut (6) are located at the bottom and the top of the fixed plate (2) respectively, the two sides of the base (1) are both provided with a threaded hole (7), the threaded hole (7) is internally threadedly connected with a second screw rod (8), the surface of the second screw rod (8) is slidably sleeved with an extension plate (9) abutting the base (1), and the surface of the second screw rod (8) is threadedly connected with a locking nut (10).

2. A base for a tower crane installation according to claim 1, characterised in that Four reinforcing plates (11) are installed equidistantly between the top of the fixed plate (2) and the support rod (3).

3. A base for a tower crane installation according to claim 1, characterised in that The top of the support rod (3) is provided with a mounting hole (12).

4. A base for a tower crane installation according to claim 1, characterised in that The support rod (3) is provided with a compression plate (13) on each side, and the two ends of the compression plate (13) are rotatably connected with a connecting block (14), and the other sides of the two connecting blocks (14) are bolted with the support rod (3) and the extension plate (9) respectively.

5. The base for a tower crane installation according to claim 1, characterized in that The surface of the first screw rod (4) is slidably sleeved with two spring washers (15).

6. A foundation for a tower crane installation according to claim 1, characterised in that The other end of the second screw rod (8) is provided with an internal hexagonal groove.

7. A base for a tower crane installation according to claim 1, characterised in that The surfaces of the base (1), the fixed plate (2) and the support rod (3) are all coated with anticorrosive paint.