Flange supporting leg structure with convertible embedded bolts for tower crane

Abstract

The utility model relates to the technical field of building construction, and discloses a tower crane embedded bolt convertible flange supporting leg structure which comprises a tower crane foundation, a supporting leg body and a conversion flange, and an installation plate is fixedly installed on the side, close to the tower crane foundation, of the supporting leg body. A positioning groove is formed in the face, close to the tower crane foundation, of the crossover flange, a positioning hole is formed in the outer surface of the crossover flange, an embedded long bolt located in the tower crane foundation is arranged on the inner surface of the positioning hole, an external thread is arranged on the outer surface of the embedded long bolt, and a reinforcing assembly is fixedly installed on the inner surface of the crossover flange. According to the flange supporting leg structure with the convertible embedded bolts of the tower crane, the embedded supporting legs and the conversion flanges are welded into a whole, then the conversion flanges are in bolt connection with the embedded long bolts, so that hole position deviation generated when the embedded long bolts are embedded is corrected, and the whole assembly is simple in manufacturing structure, convenient to install and capable of being repeatedly used.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a flange leg structure for a tower crane with convertible pre-embedded bolts. Background Technology

[0002] As an indispensable vertical transportation equipment in high-rise building construction, the safety of tower cranes is of paramount importance. The stability and reliability of the tower crane's foundation structure, especially the outrigger structure, directly affect the safe operation of the entire tower crane. During the installation process, the outriggers need to be accurately embedded in the foundation to ensure the verticality of the tower and the stability of the overall structure.

[0003] While existing technologies can fix the outrigger structure, when long bolts are pre-embedded in the tower crane foundation, the holes for the pre-embedded outriggers and the holes for the pre-embedded long bolts may not align, resulting in excessive errors. This affects the installation of the pre-embedded outriggers and the holes for the pre-embedded long bolts, making it impossible to install the pre-embedded outriggers properly later. Furthermore, since the pre-embedded outriggers and the pre-embedded long bolts are usually cast together, it is easy for the pre-embedded outriggers to be unable to be disassembled later, which is inconvenient for subsequent use. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a flange leg structure with convertible pre-embedded bolts for tower cranes. It can effectively solve the problem in the prior art that when there are pre-embedded long bolts on the foundation of the tower crane, the holes of the pre-embedded legs and the holes of the pre-embedded long bolts are not aligned, resulting in a large error between the two, which affects the installation of the pre-embedded legs and the holes of the pre-embedded long bolts. This leads to the problem that the pre-embedded legs cannot be installed properly in the later stage. In addition, the pre-embedded legs are usually cast by casting the pre-embedded legs and the pre-embedded long bolts, which makes it easy for the pre-embedded legs to be unable to be disassembled later, which is inconvenient for subsequent use.

[0005] The technical solution adopted by this utility model is: a flange leg structure for a tower crane with convertible pre-embedded bolts, including a tower crane foundation, a leg body, and a conversion flange. An mounting plate is fixedly installed on the side of the leg body near the tower crane foundation. A positioning groove is opened on the side of the conversion flange near the tower crane foundation. A positioning hole is opened on the outer surface of the conversion flange. A pre-embedded long bolt located inside the tower crane foundation is provided on the inner surface of the positioning hole. An external thread is opened on the outer surface of the pre-embedded long bolt. A reinforcing component is fixedly installed on the inner surface of the conversion flange.

[0006] Preferably, the mounting plate is adapted to the positioning groove, and the mounting plate is welded to the conversion flange.

[0007] With the above technical solution, by cooperating with the mounting plate and the positioning groove, after selecting a suitable conversion flange, the bottom of the mounting plate can be inserted into the interior of the positioning groove. Then, with the addition of the side baffle, the positioning between the two can be achieved, and welding can then be performed, which facilitates the stability during welding.

[0008] Preferably, a side baffle is fixedly installed on the outer surface of the conversion flange, the side baffle is located on both sides of the conversion flange, and the side baffle is in contact with the mounting plate.

[0009] Through the above technical solution, the side baffle design allows the mounting plate to be limited after it is aligned with the positioning groove, further improving the stability between the two and preventing displacement during welding. Subsequently, the support leg body and the conversion flange are welded into a whole, and the conversion flange is then bolted to the pre-embedded long bolts to correct the hole position deviation caused by the pre-embedded long bolts. The structure is simple, easy to install, and reusable.

[0010] Preferably, the outer surface of the pre-embedded long bolt is connected to multiple nuts of the same specification by external thread, and the cross-section of the pre-embedded long bolt has a "J" shaped structure.

[0011] Through the above technical solution, during the construction of the tower crane foundation, the pre-embedded long bolts are first placed in the foundation template according to the designed position and angle, and then concrete is poured to fix the pre-embedded long bolts to the tower crane foundation. The "J"-shaped structure of the pre-embedded long bolts increases their anchoring force with the tower crane foundation concrete, which can effectively prevent the pre-embedded long bolts from being pulled out of the foundation when subjected to tension or pressure, thereby improving the reliability of the foundation connection. The threaded connection method of multiple nuts can precisely control the installation height and level of the conversion flange by adjusting the tightness of the nuts, which is convenient for fine-tuning the outrigger structure and adapting to different installation requirements.

[0012] Preferably, the reinforcing component includes a reinforcing frame, on the inner surface of which a plurality of reinforcing rods are fixedly installed at equal intervals, and at the four corners of the reinforcing frame, reinforcing blocks with a triangular cross-section are fixedly installed.

[0013] Through the above technical solution, the combination of the reinforcing frame and the reinforcing rod can effectively increase the overall rigidity of the conversion flange, making it less prone to deformation when subjected to large external forces, ensuring the shape and dimensional stability of the conversion flange, thereby ensuring the normal operation of the support leg structure. The reinforcing block has a triangular structure, and based on the stability principle of triangles, it provides additional support and reinforcement at the four corners of the conversion flange, further improving the load-bearing capacity of the conversion flange under complex stress conditions and extending its service life.

[0014] Preferably, the reinforcing components are provided in two identical groups, and each group of reinforcing components has two identical components, and the two groups of reinforcing components are symmetrically distributed about the center line of the conversion flange.

[0015] Through the above technical solutions, the symmetrical distribution design enables the conversion flange to be uniformly reinforced in all directions, avoiding local stress concentration caused by uneven distribution of the reinforcement structure. This allows the conversion flange to maintain good structural performance when subjected to external forces from different directions, improving the stability and reliability of the entire leg structure and ensuring the safe and stable operation of the tower crane under various working conditions.

[0016] Preferably, the pre-embedded long bolt passes through the positioning hole and extends to its outer surface, and there are four identical positioning holes, nuts, and pre-embedded long bolts.

[0017] With the above technical solution, when installing the conversion flange, the four positioning holes are aligned with the four pre-embedded long bolts, and then the nuts are screwed onto the pre-embedded long bolts in sequence. The position and level of the conversion flange are gradually adjusted by tightening diagonally, and finally the nuts are fully tightened. The cooperation between the four positioning holes and the pre-embedded long bolts, as well as the tightening of the four nuts, form a stable four-point support structure, which can evenly distribute the weight and external force borne by the conversion flange, ensure the levelness and verticality of the conversion flange installation, and improve the installation accuracy and stability of the support structure.

[0018] Compared with the prior art, this utility model provides a flange leg structure for tower cranes with convertible pre-embedded bolts, which has the following beneficial effects:

[0019] 1. The tower crane features a pre-embedded bolt convertible flange leg structure. The pre-embedded legs are welded to the conversion flange to form an integral unit. The conversion flange is then bolted to the pre-embedded long bolts to correct the hole position deviation caused during the pre-embedding of the long bolts. The overall component has a simple manufacturing structure, is easy to install, and can be reused.

[0020] 2. The tower crane features a pre-embedded bolt convertible flange leg structure. Through the cooperation of the mounting plate and the positioning groove, after selecting a suitable conversion flange, the bottom of the mounting plate can be inserted into the interior of the positioning groove. At the same time, the side baffle can also limit the mounting plate, which can further improve the stability between the two and prevent displacement during welding.

[0021] 3. The tower crane features a pre-embedded bolt-mounted convertible flange leg structure. The combination of the reinforcing frame and reinforcing rod effectively increases the overall rigidity of the convertible flange, making it less prone to deformation when subjected to large external forces. This ensures the shape and dimensional stability of the convertible flange, thereby ensuring the normal operation of the leg structure. The reinforcing block has a triangular structure, which provides additional support and reinforcement at the four corners of the convertible flange based on the principle of triangle stability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0024] Figure 3 This is a three-dimensional structural diagram of the support leg body of this utility model;

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the support leg body and the conversion flange of this utility model. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the disassembled structure of the support leg body and the conversion flange of this utility model. Figure 2 ;

[0027] Figure 6 This is a schematic diagram showing the disassembled structure of the conversion flange and the pre-embedded long bolts of this utility model;

[0028] Figure 7 This is a three-dimensional structural diagram of the reinforcing component of this utility model.

[0029] The components include: 1. Tower crane foundation; 2. Outrigger body; 3. Mounting plate; 4. Conversion flange; 5. Positioning groove; 6. Side baffle; 7. Positioning hole; 8. Nut; 9. Embedded long bolt; 10. External thread; 11. Reinforcing assembly; 1101. Reinforcing frame; 1102. Reinforcing rod; 1103. Reinforcing block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: As Figure 1-7As shown, the present invention provides a tower crane pre-embedded bolt convertible flange leg structure, including a tower crane foundation 1, a leg body 2, and a conversion flange 4. A mounting plate 3 is fixedly installed on the side of the leg body 2 near the tower crane foundation 1. A positioning groove 5 is opened on the side of the conversion flange 4 near the tower crane foundation 1. A positioning hole 7 is opened on the outer surface of the conversion flange 4. A pre-embedded long bolt 9 located inside the tower crane foundation 1 is provided on the inner surface of the positioning hole 7. An external thread 10 is opened on the outer surface of the pre-embedded long bolt 9. A reinforcing component 11 is fixedly installed on the inner surface of the conversion flange 4.

[0032] Specifically, the mounting plate 3 is compatible with the positioning groove 5, and the mounting plate 3 and the conversion flange 4 are welded together. The advantage is that, through the cooperation of the mounting plate 3 and the positioning groove 5, after selecting a suitable conversion flange 4, the bottom of the mounting plate 3 can be inserted into the interior of the positioning groove 5. Then, with the side baffle 6, the positioning between the two can be achieved, and welding can then be performed, which facilitates the stability during welding.

[0033] Specifically, a side baffle 6 is fixedly installed on the outer surface of the conversion flange 4. The side baffle 6 is located on both sides of the conversion flange 4 and contacts the mounting plate 3. The advantage is that, through the design of the side baffle 6, when the mounting plate 3 is aligned with the positioning groove 5, the side baffle 6 can also limit the mounting plate 3, which can further improve the stability between the two and avoid displacement during the welding process. Then, the support leg body 2 is welded to the conversion flange 4 to form an integral form. The conversion flange 4 is then bolted to the pre-embedded long bolts 9 to correct the hole position deviation caused by the pre-embedded long bolts 9. The structure is simple, easy to install, and reusable.

[0034] Specifically, the outer surface of the pre-embedded long bolt 9 is threaded with multiple nuts 8 of the same specification via external threads 10. The pre-embedded long bolt 9 has a "J"-shaped cross-section. The advantage is that during the construction of the tower crane foundation 1, the pre-embedded long bolt 9 is first placed in the foundation template according to the design position and angle, and then concrete is poured to fix the pre-embedded long bolt 9 in the tower crane foundation 1. The "J"-shaped structure of the pre-embedded long bolt 9 increases its anchoring force with the concrete of the tower crane foundation 1, which can effectively prevent the pre-embedded long bolt 9 from being pulled out of the foundation when subjected to tension or pressure, thus improving the reliability of the foundation connection. The threaded connection of multiple nuts 8 allows for precise control of the installation height and level of the conversion flange 4 by adjusting the tightening degree of the nuts 8, which facilitates fine-tuning of the support structure and adapts to different installation requirements.

[0035] Example 2: Figure 2-7 As shown, this is an improvement on the previous embodiment.

[0036] Specifically, the reinforcing component 11 includes a reinforcing frame 1101, on the inner surface of which multiple reinforcing rods 1102 are fixedly installed at equal intervals. Reinforcing blocks 1103 with a triangular cross-section are fixedly installed at the four corners of the reinforcing frame 1101. The advantage is that the combination of the reinforcing frame 1101 and the reinforcing rods 1102 effectively increases the overall rigidity of the conversion flange 4, making it less prone to deformation under large external forces, thus ensuring the shape and dimensional stability of the conversion flange 4 and guaranteeing the normal operation of the support leg structure. The reinforcing blocks 1103, with their triangular structure, provide additional support and reinforcement at the four corners of the conversion flange 4 based on the principle of triangle stability, further improving the load-bearing capacity of the conversion flange 4 under complex stress conditions and extending its service life.

[0037] Specifically, the reinforcing components 11 are provided in two identical sets, with two identical reinforcing components 11 in each set. The two sets of reinforcing components 11 are symmetrically distributed about the center line of the conversion flange 4. The advantage is that the symmetrical distribution design allows the conversion flange 4 to be uniformly reinforced in all directions, avoiding local stress concentration caused by uneven distribution of the reinforcing structure. This ensures that the conversion flange 4 maintains good structural performance when subjected to external forces from different directions, improves the stability and reliability of the entire leg structure, and guarantees the safe and stable operation of the tower crane under various working conditions.

[0038] Specifically, the pre-embedded long bolts 9 penetrate the positioning holes 7 and extend to their outer surface. There are four identical positioning holes 7, nuts 8, and pre-embedded long bolts 9. The advantage is that when installing the conversion flange 4, the four positioning holes 7 are aligned with the four pre-embedded long bolts 9 respectively, and then the nuts 8 are screwed onto the pre-embedded long bolts 9 in sequence. The position and level of the conversion flange 4 are gradually adjusted by tightening diagonally, and finally the nuts 8 are fully tightened. The cooperation between the four positioning holes 7 and the pre-embedded long bolts 9, as well as the tightening of the four nuts 8, form a stable four-point support structure, which can evenly distribute the weight and external force borne by the conversion flange 4, ensure the horizontal and vertical installation of the conversion flange 4, and improve the installation accuracy and stability of the support structure.

[0039] Working Principle: In use, the mounting plate 3 and the positioning groove 5 work together. After selecting a suitable conversion flange 4, the bottom of the mounting plate 3 can be inserted into the positioning groove 5. Then, with the side baffle 6 in place, positioning between the two can be achieved, allowing for welding. This facilitates stability during welding. The side baffle 6 also limits the mounting plate 3 after it is aligned with the positioning groove 5, further improving stability and preventing displacement during welding. The support leg body 2 and the conversion flange 4 are then welded together as a single unit. The conversion flange 4 is then bolted to the pre-embedded long bolts 9 to correct any issues caused by the pre-embedded long bolts 9. The pre-embedded long bolts 9 have a simple structure, are easy to install, and are reusable. During the construction of the tower crane foundation 1, the pre-embedded long bolts 9 are first placed in the foundation template according to the designed position and angle, and then concrete is poured to fix the pre-embedded long bolts 9 in the tower crane foundation 1. The "J"-shaped structure of the pre-embedded long bolts 9 increases their anchoring force with the concrete of the tower crane foundation 1, effectively preventing the pre-embedded long bolts 9 from being pulled out of the foundation when subjected to tension or pressure, thus improving the reliability of the foundation connection. The threaded connection of multiple nuts 8 allows for precise control of the installation height and level of the conversion flange 4 by adjusting the tightening degree of the nuts 8, facilitating fine-tuning of the outrigger structure to adapt to different installation requirements. The reinforcing frame 1101 and... The combination of reinforcing rods 1102 effectively increases the overall rigidity of the conversion flange 4, making it less prone to deformation under large external forces, ensuring the shape and dimensional stability of the conversion flange 4, and thus ensuring the normal operation of the support structure. The reinforcing blocks 1103 have a triangular structure, providing additional support and reinforcement at the four corners of the conversion flange 4 based on the principle of triangle stability, further improving the load-bearing capacity of the conversion flange 4 under complex stress conditions and extending its service life. The symmetrical distribution design ensures that the conversion flange 4 is uniformly reinforced in all directions, avoiding local stress concentration caused by uneven distribution of the reinforcing structure, thus ensuring that the conversion flange 4 can withstand external forces from different directions. It maintains good structural performance, improves the stability and reliability of the entire outrigger structure, and ensures the safe and stable operation of the tower crane under various working conditions. When installing the conversion flange 4, align the four positioning holes 7 with the four pre-embedded long bolts 9 respectively, and then tighten the nuts 8 onto the pre-embedded long bolts 9 in sequence. Gradually adjust the position and level of the conversion flange 4 by tightening diagonally, and finally tighten the nuts 8 completely. The cooperation between the four positioning holes 7 and the pre-embedded long bolts 9 and the tightening of the four nuts 8 form a stable four-point support structure, which can evenly distribute the weight and external force borne by the conversion flange 4, ensure the horizontal and vertical installation of the conversion flange 4, and improve the installation accuracy and stability of the outrigger structure.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tower crane with a pre-embedded bolt convertible flange leg structure, comprising a tower crane foundation (1), a leg body (2), and a conversion flange (4), characterized in that: The support leg body (2) is fixedly installed with an installation plate (3) on the side near the tower crane foundation (1). The conversion flange (4) is provided with a positioning groove (5) on the side near the tower crane foundation (1). The outer surface of the conversion flange (4) is provided with a positioning hole (7). The inner surface of the positioning hole (7) is provided with a pre-embedded long bolt (9) located inside the tower crane foundation (1). The outer surface of the pre-embedded long bolt (9) is provided with an external thread (10). The inner surface of the conversion flange (4) is fixedly installed with a reinforcing component (11).

2. The flange leg structure with convertible pre-embedded bolts for a tower crane according to claim 1, characterized in that: The mounting plate (3) is adapted to the positioning groove (5), and the mounting plate (3) and the conversion flange (4) are welded together.

3. The flange leg structure with convertible pre-embedded bolts for a tower crane according to claim 1, characterized in that: Side baffles (6) are fixedly installed on the outer surface of the conversion flange (4). The side baffles (6) are located on both sides of the conversion flange (4) and are in contact with the mounting plate (3).

4. The tower crane pre-embedded bolt convertible flange leg structure according to claim 1, characterized in that: The outer surface of the pre-embedded long bolt (9) is threaded with multiple nuts (8) of the same specification through external threads (10), and the cross section of the pre-embedded long bolt (9) is in the shape of a "J".

5. The flange leg structure with convertible pre-embedded bolts for a tower crane according to claim 1, characterized in that: The reinforcing component (11) includes a reinforcing frame (1101), on the inner surface of the reinforcing frame (1101) a plurality of reinforcing rods (1102) distributed at equal intervals are fixedly installed, and reinforcing blocks (1103) with a "triangular" cross-section are fixedly installed at the four corners of the reinforcing frame (1101).

6. The flange leg structure with convertible pre-embedded bolts for a tower crane according to claim 5, characterized in that: The reinforcing components (11) are provided in two identical sets, and each set of the reinforcing components (11) has two identical components. The two sets of reinforcing components (11) are symmetrically distributed about the center line of the conversion flange (4).

7. The flange leg structure with convertible pre-embedded bolts for a tower crane according to claim 1, characterized in that: The pre-embedded long bolt (9) passes through the positioning hole (7) and extends to its outer surface. The positioning hole (7), nut (8) and pre-embedded long bolt (9) are provided in four identical portions.

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