Temporary tower crane erection attachment device

Abstract

The utility model is suitable for tower crane device field provides a kind of temporary tower crane builds attachment device, including first mounting plate and second mounting plate, the wedge shape end face design of positioning block makes when mounting seat insertion can automatically guide positioning block retraction cavity, need not artificial accurate alignment, greatly simplify high-altitude operation process, "V" type spring continues to bridge plate and applies elastic pressure, drive positioning block keeps and locks positioning hole under normal condition and extends, avoid traditional spring fatigue attenuation problem using the plastic deformation characteristics of spring piece, significantly improve connection reliability;Drive assembly controllable drive bridge plate overturn makes positioning block separate from positioning hole, realize single-hand operation unlocking, cooperate with the automatic locking function of spring piece, form "insertion-automatic locking-drive unlocking" minimal operation logic, solve the difficulty of high-altitude alignment and equipment risk of dropping of existing spring structure.

Description

Technical Field

[0001] This utility model relates to the field of tower crane devices, specifically a temporary tower crane erection attachment device. Background Technology

[0002] In modern building construction, tower cranes are indispensable vertical transportation equipment. The attachment device, as a key component connecting the tower crane to the main building structure, plays an important role in effectively transferring the tower crane load to the building walls. Its connection reliability is crucial to the overall stability of the tower crane.

[0003] Traditional tower crane attachment devices generally use a two-way bolt fixing method. One end is anchored to the building wall with expansion bolts, and the other end is locked to the connecting arm and the standard section of the tower crane with high-strength bolts. However, this fixing method has the drawbacks of low installation efficiency and difficult operation in high-altitude working environments. In addition, bolts falling may cause secondary injuries, posing an extremely high safety risk.

[0004] To address the aforementioned issues, existing technologies have introduced some rapid installation structures. For example, patent CN222877512U proposes replacing some bolts with spring-driven upper and lower positioning columns, which shortens the installation time to some extent. However, this solution still has significant shortcomings: during operation, workers need to lift the pull ring with one hand and simultaneously align it with the mounting base. In high-altitude windy conditions, precise alignment is extremely difficult, and the sudden release of the spring force can easily cause the equipment to slip out of their hands, resulting in accidents. In addition, during long-term use, the preload of the spring will gradually decrease due to fatigue, leading to loosening of the connection.

[0005] Therefore, developing an efficient, safe, and reliable temporary tower crane attachment device has become an important issue that urgently needs to be addressed in the construction industry. Utility Model Content

[0006] The purpose of this invention is to provide a temporary tower crane erection attachment device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A temporary tower crane attachment device includes a first mounting plate installed on the tower crane and a second mounting plate installed on a wall. A pair of fixed plates are fixedly installed on the side of the first mounting plate, and a mounting seat is movably inserted between the two fixed plates. One side of the mounting seat is connected to the second mounting plate through a connecting arm, and the mounting seat has symmetrical positioning holes on the two sides corresponding to the fixed plates. A cavity is formed inside the fixed plate, and a first movable hole communicating with the cavity is formed on the adjacent surface of the two fixed plates. A bridge plate is rotatably installed in the cavity through a mounting shaft. A positioning block that is adapted to be inserted into the first positioning hole is fixedly installed on the plate of the bridge plate on one side of the mounting shaft, and a spring piece is installed on the plate of the bridge plate above the positioning block. The spring piece has a "V" shaped structure. The positioning block is movably installed in the first movable hole, and the end face of the positioning hole outside the movable hole is wedge-shaped. A drive assembly is also provided on the fixed plate to provide power for the bridge plate to flip away from the spring piece.

[0009] As a further embodiment of this utility model: the driving assembly includes a rotating component, a pin, and a lever plate. The fixed plate has a second movable hole communicating with the cavity. The rotating component has a cam structure and is rotatably installed in the second movable hole through the pin. The rotation trajectory of the rotating component interferes with the flipping trajectory of the bridge plate. A lever plate is also fixedly installed on the rotating component.

[0010] As a further embodiment of this utility model: a pair of limiting rails are symmetrically fixed on the adjacent surfaces of the two fixed plates, and the mounting base is provided with a track groove that is adapted to slide with the limiting rails.

[0011] As a further embodiment of this utility model, a plurality of reinforcing ribs are also fixedly provided between the fixing plate and the first mounting plate.

[0012] As a further embodiment of this utility model: a limiting groove is also fixedly provided on the top surface of the bridge plate, and the spring piece is installed in the limiting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes the wedge-shaped end face design of the positioning block to automatically guide it back into the cavity when the mounting base is inserted, eliminating the need for precise manual alignment and significantly simplifying the high-altitude operation process. The "V"-shaped spring continuously applies elastic pressure to the bridge plate, driving the positioning block to remain extended and lock the positioning hole under normal conditions. The plastic deformation characteristics of the spring avoid the fatigue attenuation problem of traditional springs, significantly improving connection reliability. The drive assembly can controllably drive the bridge plate to flip, causing the positioning block to disengage from the positioning hole, enabling one-handed unlocking. Combined with the automatic locking function of the spring, it forms a simplified operation logic of "insertion-automatic locking-drive unlocking," solving the difficulties of high-altitude alignment and the risk of equipment slippage associated with existing spring structures. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a temporary tower crane attachment device;

[0016] Figure 2 for Figure 1 Enlarged view of the first mounting plate section;

[0017] Figure 3 for Figure 2 Cross-sectional view;

[0018] Figure 4 for Figure 3 Enlarged view of section A;

[0019] Figure 5 for Figure 4 Enlarged 3D view of the rotating component;

[0020] In the diagram: 1. First mounting plate; 2. Second mounting plate; 3. Fixing plate; 4. Mounting base; 5. Connecting arm; 6. Positioning hole; 7. Cavity; 8. First movable hole; 9. Bridge plate; 10. Mounting shaft; 11. Positioning block; 12. Spring piece; 13. Rotating component; 14. Pin; 15. Pulley; 16. Limiting rail; 17. Track groove; 18. Reinforcing rib; 19. Limiting groove; 20. Second movable hole. Detailed Implementation

[0021] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0022] Example 1

[0023] Please see Figure 1-5A temporary tower crane attachment device includes a first mounting plate 1 installed on the tower crane and a second mounting plate 2 installed on a wall. A pair of fixing plates 3 are fixedly mounted on the side of the first mounting plate 1, and a mounting seat 4 is movably inserted between the two fixing plates 3. The fixing plates 3 form a sliding guide base for the mounting seat 4. One side of the mounting seat 4 is connected to the second mounting plate 2 via a connecting arm 5, which serves as the core load-bearing component for transferring the tower crane load to the wall. The mounting seat 4 has symmetrically arranged positioning holes 6 on both sides corresponding to the fixing plates 3, used to lock the mounting seat 4 in position for quick fixing. A cavity 7 is formed within the fixing plates 3, and a first movable hole 8 communicating with the cavity 7 is formed on the adjacent surfaces of the two fixing plates 3. The cavity 7 provides installation space for a locking mechanism, and the first movable hole 8 provides a channel for the telescopic movement of a positioning block 11. A bridge plate 9 is rotatably mounted within the cavity 7 via a mounting shaft 10, where the bridge plate 9 acts as a transmission lever for the locking action. The movement enables the extension and retraction control of the positioning block 11. The positioning block 11, which is adapted to be inserted into the positioning hole 6, is fixedly installed on the plate of the bridge plate 9 located on one side of the mounting shaft 10. The wedge-shaped end face design of the positioning block 11 can automatically guide the positioning block 11 to retract when the mounting seat 4 is inserted, simplifying the high-altitude alignment operation. The plate of the bridge plate 9 above the positioning block 11 is equipped with a spring piece 12. The spring piece 12 has a "V" shape structure. The "V" shaped spring piece 12 continuously applies elastic pressure to the bridge plate 9, driving the positioning block 11 to remain in the extended state under normal conditions, ensuring locking reliability and avoiding the problem of preload attenuation caused by fatigue of traditional springs. The positioning block 11 is movably installed in the first movable hole 8, and the end face of the positioning hole 6 outside the movable hole is wedge-shaped. The fixed plate 3 is also equipped with a drive assembly. The drive assembly is used to provide power for the bridge plate 9 to flip away from the spring piece 12. The drive assembly provides a controllable unlocking force to make the positioning block 11 disengage from the positioning hole 6, realizing safe, stable and quick disassembly.

[0024] Example 2

[0025] Please see Figure 3-5 The drive assembly includes a rotating component 13, a pin 14, and a lever 15. The fixed plate 3 has a second movable hole 20 that communicates with the cavity 7. The rotating component 13 has a cam structure and is rotatably mounted in the second movable hole 20 through the pin 14. The rotation trajectory of the rotating component 13 interferes with the flipping trajectory of the bridge plate 9. The lever 15 is also fixedly mounted on the rotating component 13. The rotating component 13 with a cam structure rotates under the drive of the lever 15. Its outer contour squeezes the bridge plate 9 to overcome the pressure of the spring 12 and flips in the opposite direction, forcing the positioning block 11 to exit the positioning hole 6, realizing one-handed operation unlocking and avoiding the risk of equipment slippage due to sudden release in high-altitude environments.

[0026] Example 3

[0027] Please see Figure 1and Figure 2 A pair of limiting rails 16 are symmetrically fixed on the adjacent surfaces of the two fixed plates 3. The mounting base 4 is provided with a track groove 17 that is slidably adapted to the limiting rails 16. The limiting rails 16 and the track groove 17 cooperate to strictly constrain the insertion trajectory of the mounting base 4, ensuring that the positioning hole 6 and the positioning block 11 are accurately aligned, thus solving the problem of difficult alignment in high-altitude windy environments.

[0028] Example 4

[0029] Please see Figure 2 Multiple reinforcing ribs 18 are also fixedly installed between the fixing plate 3 and the first mounting plate 1. The reinforcing ribs 18 significantly improve the bending stiffness of the fixing plate 3, ensuring the structural stability of the device when subjected to the huge load of the tower crane.

[0030] Example 5

[0031] Please see Figure 4 The top surface of the bridge plate 9 is also fixedly provided with a limiting groove 19, and the spring piece 12 is installed in the limiting groove 19. The limiting groove 19 fixes the installation position of the spring piece 12 and restricts its lateral displacement, ensuring that the pressure of the spring piece 12 always acts vertically on the bridge plate 9, and maintaining the durability and consistency of the locking force.

[0032] Working principle:

[0033] During installation, the second mounting plate 2 at the end of the connecting arm 5 is anchored to the building wall, and the mounting base 4 is inserted horizontally along the limiting rail 16 between the fixing plates 3. When the mounting base 4 moves to the preset position, the wedge-shaped positioning hole 6 on its side contacts the wedge-shaped end face of the positioning block 11. Under the action of the inclined plane, the positioning block 11 is pressed back into the cavity 7. At this time, the bridge plate 9 is squeezed and rotates around the mounting shaft 10 towards the spring piece 12. After the positioning hole 6 completely passes the positioning block 11, the "V"-shaped spring piece 12 pushes the bridge plate 9 to reset, and the positioning block 11 is pushed into the positioning hole 6 by the bridge plate 9, completing the automatic locking. During disassembly, the lever 15 drives the rotating part 13 to rotate around the pin shaft 14. The cam profile pushes the bridge plate 9 to overcome the pressure of the spring piece 12 and rotates in the opposite direction, driving the positioning block 11 out of the positioning hole 6, so that the mounting base 4 can be smoothly pulled out. The entire process requires no bolt tightening or hand alignment, greatly improving the efficiency and safety of high-altitude operations. Furthermore, the "V"-shaped structure of the spring 12 provides a durable and stable locking force, effectively avoiding the risk of fatigue failure of traditional springs.

[0034] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A temporary tower crane erection attachment device comprising a first mounting plate (1) mounted on a tower crane and a second mounting plate (2) mounted on a wall, characterized in that A pair of fixing plates (3) are fixedly provided on the side of the first mounting plate (1). A mounting seat (4) is movably inserted between the two fixing plates (3). One side of the mounting seat (4) is connected to the second mounting plate (2) through a connecting arm (5). The mounting seat (4) is symmetrically provided with positioning holes (6) on the two sides of the fixing plate (3). A cavity (7) is provided inside the fixing plate (3). A first movable hole (8) communicating with the cavity (7) is provided on the adjacent surfaces of the two fixing plates (3). A bridge plate (9) is rotatably installed inside the cavity (7) through a mounting shaft (10). The bridge plate (9) is located on the mounting shaft (10). A positioning block (11) that is compatible with the positioning hole (6) is fixedly installed on one side of the plate, and a spring piece (12) is installed on the plate above the positioning block (11) of the bridge plate (9). The spring piece (12) has a "V" shaped structure. The positioning block (11) is movably installed in the first movable hole (8), and the end face of the positioning hole (6) outside the movable hole is wedge-shaped. A drive assembly is also provided on the fixed plate (3). The drive assembly includes a rotating part (13), a pin (14) and a lever (15). The drive assembly is used to provide power for the bridge plate (9) to flip away from the spring piece (12).

2. A temporary tower crane erection attachment according to claim 1, characterized in that The drive assembly includes a rotating component (13), a pin (14), and a lever (15). The fixed plate (3) has a second movable hole (20) communicating with the cavity (7). The rotating component (13) is in the form of a cam structure and is rotatably installed in the second movable hole (20) through the pin (14). The rotation trajectory of the rotating component (13) interferes with the flipping trajectory of the bridge plate (9). The lever (15) is also fixedly installed on the rotating component (13).

3. A temporary tower crane erection attachment according to claim 1, characterized in that A pair of limiting rails (16) are symmetrically fixed on the adjacent surfaces of the two fixed plates (3), and the mounting base (4) is provided with a track groove (17) that is slidably adapted to the limiting rails (16).

4. A temporary tower crane erection attachment according to claim 1, characterized in that Multiple reinforcing ribs (18) are also fixedly provided between the fixing plate (3) and the first mounting plate (1).

5. A temporary tower crane erection attachment according to claim 1, characterized in that The top surface of the bridge plate (9) is also fixedly provided with a limiting groove (19), and the spring piece (12) is installed in the limiting groove (19).

Images