Steel structure building construction heavy tower column hoop type attachment connecting device

Abstract

This invention relates to the field of building engineering technology and discloses a column hoop attachment connection device for heavy-duty tower cranes in steel structure building construction. The device includes a column, an attachment ring fitted on the outer wall of the column, and an ear plate fixedly connected to the left outer wall of the attachment ring. Two attachment rods are rotatably connected to the outer wall of the ear plate. This invention utilizes a moving block that moves along the guide column towards the fixed block, causing the rotating rod to move towards the fixed block. This, in turn, causes the V-shaped connecting rod to rotate around the fixed rod, allowing the clamping block to tightly adhere to the column. This effectively alleviates the problem of relative rotation and slippage between the attachment ring and the outer wall of the column during tower crane operation, which is caused by the circumferential torsional moment generated in the tower body. Under the combined action of torsional load and lateral horizontal force, this alters the original force path and force distribution of the attachment device, disrupting the overall force balance and ultimately leading to stress concentration, local deformation, and even structural failure of the attachment connection.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a heavy-duty tower crane column hoop attachment connection device for steel structure building construction. Background Technology

[0002] Steel structure buildings are building systems that use steel materials such as steel profiles and steel plates as the main load-bearing components and are connected by welding, bolting or riveting. During construction, round steel components with cast-in-concrete are often used as columns. Tower cranes are subject to height restrictions in the construction of super high-rise buildings and often adopt external fixing methods. Column hoop attachment devices are a type of non-welded, detachable key load-bearing component used in the construction of high-rise steel structures to stably connect the tower body of heavy tower cranes to the steel columns of the building.

[0003] During operation, tower cranes generate circumferential torsional moments. Under the combined action of torsional loads and lateral horizontal forces, relative rotation and slippage can easily occur between the attachment ring and the outer wall of the column. This alters the original force path and force distribution of the attachment device, disrupts the overall force balance, and ultimately leads to stress concentration, local deformation, and even structural failure of the attachment connectors. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a heavy-duty tower crane column hoop attachment connection device for steel structure construction, including a column, an attachment ring sleeved on the outer wall of the column, an ear plate fixedly connected to the left outer wall of the attachment ring, and two attachment rods rotatably connected to the outer wall of the ear plate, and further including:

[0005] The fixing mechanism is fixedly installed on the inner wall of the attachment ring; The activity mechanism is fixedly installed on the outer wall of the fixed mechanism; A clamping mechanism is fixedly installed on the outer wall of the movable mechanism; The attachment ring consists of two identical parts fixed together by bolts. The attachment ring is tightly attached to the outer wall of the column, and the attachment rod is fixedly connected to the tower crane frame on the side away from the ear plate. The length and installation angle of the attachment rod can be adjusted according to the site conditions.

[0006] Preferably, the fixing mechanism includes: The limiting component is fixedly installed on the inner wall of the attachment ring; The connecting rod assembly is fixedly mounted on the bottom inner wall of the attachment ring; The linkage assembly can push the movable mechanism when it moves.

[0007] Preferably, the activity organizers include: The top block assembly is slidably disposed on the outer wall of the limiting assembly; Clamping assembly, which is fixedly installed on the outer wall of the connecting rod assembly; When the top block assembly moves, it can drive the connecting rod assembly to move, which in turn drives the clamping assembly to move.

[0008] Preferably, the clamping mechanism includes: The facet component is slidably mounted on the side of the top block component away from the limiting component; The large-area component is slidably mounted on the side of the clamping component away from the connecting rod component; Both the small-face component and the large-face component are in close contact with the outer wall of the column during operation.

[0009] Preferably, the limiting component includes two fixing blocks fixedly connected to the inner wall of the attachment ring, two guide posts fixedly connected to the side of each fixing block away from the attachment ring, and a high-strength spring fixedly connected to the side of the fixing block away from the attachment ring. The two fixed blocks are mirror images of each other, the two guide posts are mirror images of each other on the fixed blocks, and the high-strength spring is initially in a free state.

[0010] Preferably, the linkage assembly includes several fixed rods fixedly connected to the inner wall of the attachment ring, and two V-shaped connecting rods rotatably connected to the outer walls of the several fixed rods. Two right-angle connecting rods are rotatably connected to the side of the two V-shaped connecting rods away from the fixed block, and rotating rods are fixedly connected to the side of the two V-shaped connecting rods close to the fixed block. Among them, there are four fixed rods, and two V-shaped connecting rods on one fixed rod are fixedly connected to the same rotating rod.

[0011] Preferably, the top block assembly includes a movable block slidably connected to the outer wall of the guide post, a top pressure plate fixedly connected to the side of the movable block away from the fixed block, two movable slots being provided on the top of the movable block, and two movable vertical slots being provided on the inner wall of the top pressure plate. The two movable slots are mirror images of each other and are adapted to the two rotating rods respectively. The two movable vertical slots are mirror images of each other. The rotating rods slide while rotating on the inner wall of the movable slots. The side of the high-strength spring away from the fixed block is fixedly connected to the moving block.

[0012] Preferably, the clamping assembly includes a clamping block fixedly connected to the side of the right-angle connecting rod away from the fixed rod, and the side of the clamping block away from the right-angle connecting rod has two movable vertical slots. In this configuration, a clamping block is fixed to every two right-angle connecting rods, and the two movable vertical slots are arranged in a mirror image.

[0013] Preferably, the small face assembly includes a wedge-shaped block 1 slidably connected to the outer wall of the top pressure plate, two locking grooves 1 are opened on the side of the wedge-shaped block 1 away from the top pressure plate, two protruding blocks 1 are fixedly connected to the side wall of the wedge-shaped block 1, and a rubber pad 1 is fixedly connected to the side of the wedge-shaped block 1 away from the top pressure plate. Among them, the two protruding blocks are respectively adapted to the two movable vertical grooves. The diameter of the side of the two locking grooves near the rubber pad is smaller than the inner wall diameter of the locking groove. The rubber pad fits the surface of the wedge block and is inserted into the locking groove. The thickness of the rubber pad is different on the upper and lower sides.

[0014] Preferably, the large surface component includes a wedge-shaped block 2 that is slidably connected to the inner wall of the clamping block. Two locking grooves 2 are provided on the side of the wedge-shaped block 2 near the rubber pad 2. Two protruding blocks 2 are fixedly connected to the side wall of the wedge-shaped block 2. A rubber pad 2 is fixedly connected to the side of the wedge-shaped block 2 away from the clamping block. Among them, the two protruding blocks are respectively adapted to the two movable vertical grooves. The diameter of the two locking grooves is smaller than the inner wall of the locking groove on the side closest to the rubber pad. The rubber pad is divided into three sections. The middle part fits the wedge-shaped block, and the other two parts of the rubber pad fit the clamping block. The rubber pad is inserted into the two locking grooves. The thickness of the rubber pad is different on the upper and lower sides.

[0015] The present invention has the following beneficial effects: (1) The present invention utilizes the moving block to move along the guide column towards the fixed block, thereby driving the rotating rod to move towards the fixed block. At this time, the V-shaped connecting rod rotates around the fixed rod, so that the clamping block can be tightly attached to the column. Through the application of the above components, the circumferential torsional moment generated by the tower body during the operation of the tower crane is effectively alleviated. Under the combined action of torsional load and lateral horizontal force, the attachment ring and the outer wall of the column are prone to relative rotation and slippage, thereby changing the original force path and force distribution relationship of the attachment device, destroying the overall force balance state, and ultimately causing stress concentration, local deformation and even structural failure of the attachment connection.

[0016] (2) This invention utilizes the characteristic of the moving block of the above-mentioned equipment being close to the fixed block. Through a high-strength spring, when the pressure of the top pressure plate on the column decreases, the elastic potential energy stored in the high-strength spring is transferred to the top pressure plate, thereby supplementing the pressure reduced by the top pressure plate on the column. When the pressure of the top pressure plate on the column increases, the excess pressure is transferred to the high-strength spring, thereby further compressing the high-strength spring. The elastic potential energy stored in the high-strength spring increases. After the pressure of the top pressure plate returns to a stable state, the excess elastic potential energy stored in the high-strength spring is released, pushing the top pressure plate to press tightly against the outer wall of the column. Through the application of the above-mentioned components, the problem of slippage caused by the changing tension on the attachment rod when the tower crane moves is effectively prevented. This results in a larger contact pressure on one side of the attachment ring and a smaller contact pressure on the other side.

[0017] (3) The present invention utilizes the feature that the attachment ring of the above-mentioned equipment is fixed on the outer wall of the column. When the attachment ring is fixed, it will slide slightly due to the influence of its own weight. Since the friction between the wedge block and the column is greater than the friction between the wedge block and the top pressure plate, and the length of the movable groove is greater than that of the protruding block, the position of the wedge block on the outer wall of the column remains unchanged, but it moves upward relative to the position of the top pressure plate. Through the wedge surface, the greater the sliding distance of the attachment ring, the greater the pressure exerted by the top pressure plate on the wedge block, thereby delaying the downward trend of the attachment ring. Through the application of the above components, the problem of the attachment ring sliding downward and falling out of the predetermined position due to its own weight after long-term use is effectively prevented.

[0018] (4) This invention utilizes the characteristics of the rubber pad 1 and rubber pad 2 of the above-mentioned equipment to adhere to the outer surface of the column. The thicker side of the rubber pad is located on the side with less pressure, and the thinner side is located on the side with greater pressure, so that the rubber pad can always contact the outer wall of the column. The rubber pad 1 and rubber pad 2 are respectively inserted into the locking groove 1 and locking groove 2. Both locking grooves are set such that the diameter of the side closest to the rubber pad is smaller than the inner wall of the locking groove, thereby preventing the rubber pad from falling off. Through the application of the above components, the problem of the attachment rod generating a downward pulling force on the attachment ring, resulting in unequal pressure on the upper and lower sides of the attachment ring, and the side with greater pressure generating a small area but greater force of squeezing on the outer wall of the column, resulting in local deformation of the column, is effectively prevented. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 4 This is a partial structural diagram of the present invention; Figure 5 For the present invention Figure 4 A magnified structural diagram of A in the middle; Figure 6 This is a partial structural diagram of the present invention; Figure 7 This is a cross-sectional schematic diagram of the fixing mechanism of the present invention; Figure 8This is a cross-sectional schematic diagram of the fixing mechanism of the present invention; Figure 9 This is an exploded view of the top block assembly of the present invention; Figure 10 For the present invention Figure 9 A magnified structural diagram of B in the diagram; Figure 11 This is an exploded view of the clamping assembly of the present invention; Figure 12 This is a schematic diagram of the initial state of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Fixing mechanism; 11. Limiting assembly; 12. Linkage assembly; 13. Column; 14. Attachment ring; 15. Ear plate; 16. Attachment rod; 111. Fixing block; 112. Guide column; 113. High-strength spring; 121. Fixing rod; 122. V-shaped link; 123. Right-angle link; 124. Rotating rod; 2. Movable mechanism; 21. Top block assembly; 22. Clamping assembly; 211. Moving part 212. Top pressure plate; 213. Movable groove; 214. Movable vertical groove one; 221. Clamping block; 222. Movable vertical groove two; 3. Pressing mechanism; 31. Small surface assembly; 32. Large surface assembly; 311. Wedge block one; 312. Positioning groove one; 313. Protruding block one; 314. Rubber pad one; 321. Wedge block two; 322. Positioning groove two; 323. Protruding block two; 324. Rubber pad two. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 scope of protection of the present invention.

[0023] Example 1, please refer to Figures 1-6 This invention relates to a heavy-duty tower crane column hoop attachment connection device for steel structure construction, comprising a column 13, an attachment ring 14 sleeved on the outer wall of the column 13, an ear plate 15 fixedly connected to the left outer wall of the attachment ring 14, and two attachment rods 16 rotatably connected to the outer wall of the ear plate 15, and further comprising: Fixing mechanism 1 is fixedly installed on the inner wall of attachment ring 14; Activity mechanism 2 is fixedly installed on the outer wall of fixed mechanism 1; The clamping mechanism 3 is fixedly installed on the outer wall of the movable mechanism 2; The attachment ring 14 is made up of two identical parts fixed together by bolts. The attachment ring 14 is close to the outer wall of the column 13. The attachment rod 16 is fixedly connected to the tower crane frame on the side away from the ear plate 15. The length and installation angle of the attachment rod 16 can be adjusted according to the site conditions.

[0024] Fixed mechanism 1 includes: Limiting component 11 is fixedly installed on the inner wall of attachment ring 14; Linkage assembly 12 is fixedly disposed on the bottom inner wall of attachment ring 14; When the linkage assembly 12 moves, it can push the movable mechanism 2.

[0025] Activity organization 2 includes: Top block assembly 21 is slidably disposed on the outer wall of limit assembly 11; Clamping assembly 22 is fixedly installed on the outer wall of connecting rod assembly 12; When the top block assembly 21 moves, it can drive the connecting rod assembly 12 to move, and then drive the clamping assembly 22 to move.

[0026] The clamping mechanism 3 includes: Small facet component 31 is slidably mounted on the side of top block component 21 away from limit component 11; Large surface component 32 is slidably mounted on the side of clamping component 22 away from connecting rod component 12; Both the small-face component 31 and the large-face component 32 are in close contact with the outer wall of the column 13 during operation.

[0027] Example 2, please refer to Figures 3-12 The present invention is a heavy tower crane column hoop attachment connection device for steel structure building construction. Based on Example 1, the limiting component 11 includes two fixing blocks 111 fixedly connected to the inner wall of the attachment ring 14. Two guide columns 112 are fixedly connected to the side of the two fixing blocks 111 away from the attachment ring 14. A high-strength spring 113 is fixedly connected to the side of the fixing blocks 111 away from the attachment ring 14. Among them, the two fixing blocks 111 are arranged in a mirror image, the two guide posts 112 are arranged in a mirror image on the fixing blocks 111, and the high-strength spring 113 is initially in a free state.

[0028] The linkage assembly 12 includes several fixed rods 121 fixedly connected to the inner wall of the attachment ring 14. Two V-shaped connecting rods 122 are rotatably connected to the outer walls of the several fixed rods 121. Two right-angle connecting rods 123 are rotatably connected to the side of the two V-shaped connecting rods 122 away from the fixed block 111. A rotating rod 124 is fixedly connected to the side of the two V-shaped connecting rods 122 near the fixed block 111. Among them, four fixed rods 121 are provided, and two V-shaped connecting rods 122 on one fixed rod 121 are fixedly connected to the same rotating rod 124.

[0029] The top block assembly 21 includes a movable block 211 that is slidably connected to the outer wall of the guide post 112. A top pressure plate 212 is fixedly connected to the side of the movable block 211 away from the fixed block 111. Two movable slots 213 are opened on the top of the movable block 211, and two movable vertical slots 214 are opened on the inner wall of the top pressure plate 212. Among them, the two movable slots 213 are set in a mirror image, and the two movable slots 213 are respectively adapted to the two rotating rods 124. The two movable vertical slots 214 are set in a mirror image. The rotating rods 124 slide while rotating on the inner wall of the movable slots 213. The side of the high-strength spring 113 away from the fixed block 111 is fixedly connected to the moving block 211.

[0030] The clamping assembly 22 includes a clamping block 221 fixedly connected to the side of the right-angle connecting rod 123 away from the fixed rod 121. Two movable vertical slots 222 are provided on the side of the clamping block 221 away from the right-angle connecting rod 123. Among them, a clamping block 221 is fixed for every two right-angle connecting rods 123, and the two movable vertical slots 222 are set in a mirror image; During installation of the attachment ring 14, the attachment ring 14 is divided into two halves. The two halves of the attachment ring 14 are close together and fitted onto the outer wall of the column 13. When fixed with bolts, the two halves of the attachment ring 14 approach and adhere tightly. At this time, the two moving blocks 211 first contact the column 13. As the two halves of the attachment ring 14 approach each other, the mutual pressure between the moving blocks 211 and the contact surfaces of the column 13 continuously increases. At this time, the moving blocks 211 move along the guide post 112 towards the fixed block 111. At this time, the high-strength spring 113 changes from a free state to a compressed state, and the high-strength spring 113 begins to accumulate potential energy. When the moving blocks 211 move, they drive the rotating rod 124 to move towards the fixed block 111, which in turn drives the V-shaped connecting rod 122 to rotate around the fixed rod 121. Figure 5As shown, when the moving block 211 moves, it causes the V-shaped connecting rod 122 to rotate clockwise, thereby causing the clamping block 221 to move closer to the column 13. Since the lever arm of the rotating rod 124 is less than the lever arm of the right-angle connecting rod 123, the torque increases when the V-shaped connecting rod 122 rotates. When the V-shaped connecting rod 122 rotates, the moving distance becomes shorter and the torque increases, thus allowing the clamping block 221 to fit tightly against the column 13. Furthermore, during the bolt tightening process, the pressure of the moving block 211 on the column 13 is less than the pressure of the clamping block 221 on the column 13. The clamping blocks 221 are provided with four clamping blocks 221. The four clamping blocks 221 are in contact with the outer surface of the column 13. The pressure of the four clamping blocks 221 on the column 13 is evenly distributed. Restricted by the upper and lower horizontal plates of the attachment ring 14, the four clamping blocks 221 are always perpendicular to the upper and lower horizontal plates of the attachment ring 14. Only the horizontal position is changed. The friction of the contact surface is increased by the rubber pad 1 314 and the rubber pad 2 324. The upper and lower horizontal plates of the attachment ring 14 also contact the column 13, thereby restricting external debris from entering the internal space of the attachment ring 14. During the movement of the tower crane, the tension on the attachment rod 16 changes, and the force on the attachment ring 14 also changes. Consequently, the pressure on the two moving blocks 211 is not constant. When the pressure on one side decreases, the pressure on the other side increases, resulting in the pressure of the top pressure plate 212 on the column 13 not remaining constant. Through the high-strength spring 113, when the pressure of the top pressure plate 212 on the column 13 decreases, the elastic potential energy stored in the high-strength spring 113 is transferred to the top pressure plate 212, thus replenishing the reduced pressure on the column 13. When the pressure of the top pressure plate 212 on the column 13 increases, the excess pressure is transferred to the high-strength spring 113, further compressing it. The elastic potential energy stored in the high-strength spring 113 increases. After the pressure of the top pressure plate 212 returns to a stable level, the excess elastic potential energy stored in the high-strength spring 113 is released, pushing the top pressure plate 212 tightly against the outer wall of the column 13.

[0031] The small face assembly 31 includes a wedge-shaped block 311 slidably connected to the outer wall of the top pressure plate 212. Two locking grooves 312 are provided on the side of the wedge-shaped block 311 away from the top pressure plate 212. Two protruding blocks 313 are fixedly connected to the side wall of the wedge-shaped block 311. A rubber pad 314 is fixedly connected to the side of the wedge-shaped block 311 away from the top pressure plate 212. Among them, the two protruding blocks 313 are respectively adapted to the two movable vertical grooves 214. The diameter of the side of the two locking grooves 312 near the rubber pad 314 is smaller than the inner wall diameter of the locking groove 312. The rubber pad 314 fits the surface of the wedge block 311 and is locked into the locking groove 312. The thickness of the upper and lower sides of the rubber pad 314 is different.

[0032] The large surface component 32 includes a wedge-shaped block 321 that is slidably connected to the inner wall of the clamping block 221. Two locking grooves 322 are provided on the side of the wedge-shaped block 321 near the rubber pad 324. Two protruding blocks 323 are fixedly connected to the side wall of the wedge-shaped block 321. The rubber pad 324 is fixedly connected to the side of the wedge-shaped block 321 away from the clamping block 221. Among them, the two protruding blocks 2 323 are respectively adapted to the two movable vertical grooves 222. The diameter of the two locking grooves 2 322 on the side near the rubber pad 2 324 is smaller than the inner wall of the locking groove 2 322. The rubber pad 2 324 is divided into three sections. The middle part fits the wedge-shaped block 2 321, and the other two parts of the rubber pad 2 324 fit the clamping block 221. The rubber pad 2 324 is inserted into the two locking grooves 2 322. The thickness of the rubber pad 2 324 is different on the upper and lower sides. When the attachment ring 14 remains fixed, it will slightly slide down due to its own weight, and the sliding distance will increase over time. When the top pressure plate 212 contacts the outer wall of the column 13, the wedge block 311 will also contact the outer wall of the column 13. When the attachment ring 14 slides down as a whole, causing the top pressure plate 212 to slide downward, the friction between the wedge block 311 and the column 13 is greater than the friction between the wedge block 311 and the top pressure plate 212, and the length of the movable groove 213 is greater than that of the protruding block 313. At this time, the wedge block 311 is on the column 13. The position of the outer wall remains unchanged, but it moves upward relative to the position of the top pressure plate 212. Through the wedge-shaped surface, the greater the downward distance of the attachment ring 14, the greater the pressure exerted by the top pressure plate 212 on the first wedge block 311. The same principle applies to the second wedge block 321. When the clamping block 221 moves downward along with the attachment ring 14, the position of the second wedge block 321 moves upward relative to the clamping block 221, increasing the pressure exerted by the clamping block 221 on the second wedge block 321. As a result, the first wedge block 311 and the second wedge block 321 exert extremely strong pressure on the column 13, thereby slowing down the downward trend of the attachment ring 14. During use, the attachment rod 16 is subjected not only to tension but also to the weight of the tower crane, generating a downward thrust. This causes the attachment rod 16 to exert a downward pulling force on the attachment ring 14. At this time, the upper contact pressure on the left side of the attachment ring 14 is slightly less than the lower pressure, while the upper contact pressure on the right side of the attachment ring 14 is slightly greater than the lower pressure. When fixed, the clamping block 221 and the moving block 211 are both in close contact with the outer wall of the column 13. Rubber pad 1 314 and rubber pad 2 324 are also in close contact with the outer wall of the column 13. The thickness of rubber pad 1 314 and rubber pad 2 324 is different at the top and bottom. The thicker side of the rubber pad is located on the side with less pressure, and the thinner side is located on the side with more pressure. This ensures that the rubber pads are always in contact with the outer wall of the column 13. Rubber pad 1 314 and rubber pad 2 324 are respectively inserted into the locking groove 1 312 and locking groove 2 322. Both locking grooves are designed such that the diameter of the side closest to the rubber pad is smaller than the inner wall of the locking groove, thereby preventing the rubber pads from falling off.

[0033] One specific application of this embodiment is as follows: When in use, the operator selects a column 13 that meets the requirements, puts the attachment ring 14 on the outer wall of the column 13, fixes the attachment ring 14 with bolts, then fixes two attachment rods 16 on the outside of the ear plate 15, determines the angle and length of the attachment rods 16, fixes the two attachment rods 16 on the external tower crane frame, confirms that it is firm, and installs the tower crane.

[0034] During installation of the attachment ring 14, the attachment ring 14 is divided into two halves. The two halves of the attachment ring 14 are close together and fitted onto the outer wall of the column 13. When fixed with bolts, the two halves of the attachment ring 14 approach and adhere tightly. At this time, the two moving blocks 211 first contact the column 13. As the two halves of the attachment ring 14 approach each other, the mutual pressure between the moving blocks 211 and the contact surfaces of the column 13 continuously increases. At this time, the moving blocks 211 move along the guide post 112 towards the fixed block 111. At this time, the high-strength spring 113 changes from a free state to a compressed state, and the high-strength spring 113 begins to accumulate potential energy. When the moving blocks 211 move, they drive the rotating rod 124 to move towards the fixed block 111, which in turn drives the V-shaped connecting rod 122 to rotate around the fixed rod 121. Figure 5As shown, when the moving block 211 moves, it drives the V-shaped connecting rod 122 to rotate clockwise, thereby causing the clamping block 221 to move closer to the column 13. Since the lever arm of the rotating rod 124 is less than the lever arm of the right-angle connecting rod 123, the torque increases when the V-shaped connecting rod 122 rotates. When the V-shaped connecting rod 122 rotates, the moving distance becomes shorter and the torque increases, thus allowing the clamping block 221 to fit tightly against the column 13. During the bolt tightening process, the pressure of the moving block 211 on the column 13 is less than the pressure of the clamping block 221 on the column 13. Four clamping blocks 221 are provided, and the four clamping blocks 221 fit the outer surface of the column 13 with an arc. The pressure of the four clamping blocks 221 on the column 13 is evenly distributed and is restricted by the upper and lower horizontal plates of the attachment ring 14. The four clamping blocks 221 are always perpendicular to the upper and lower horizontal plates of the attachment ring 14, only changing the horizontal position. The friction of the contact surface is increased by the rubber pad 314 and the rubber pad 324. The upper and lower horizontal plates of the attachment ring 14 also contact the column 13, thereby restricting the entry of external debris into the internal space of the attachment ring 14. Through the application of the above components, the circumferential torsional moment generated by the tower body during the operation of the tower crane is effectively alleviated. Under the combined action of torsional load and lateral horizontal force, relative rotation and slippage are likely to occur between the attachment ring 14 and the outer wall of the column 13, thereby changing the original force path and force distribution relationship of the attachment device, destroying the overall force balance state, and ultimately causing stress concentration, local deformation and even structural failure of the attachment connection.

[0035] Taking advantage of the characteristic that the moving block 211 is close to the fixed block 111, the tension generated on the attachment rod 16 changes during the movement of the tower crane. At the same time, the force generated on the attachment ring 14 also changes, resulting in a non-constant pressure on the moving blocks 211 on both sides. When the pressure on one side decreases, the pressure on the other side increases, causing the pressure of the top pressure plate 212 on the column 13 to be non-constant. Through the high-strength spring 113, when the pressure of the top pressure plate 212 on the column 13 decreases, the elastic potential energy stored in the high-strength spring 113 is transferred to the top pressure plate 212, thus compensating for the reduced pressure. When the pressure of the top pressure plate 212 on the column 13 increases, the excess pressure is transferred to the high-strength spring 113, further compressing the column. The high-strength spring 113 is compressed, and the elastic potential energy stored in the high-strength spring 113 increases. After the pressure of the top pressure plate 212 returns to a stable state, the excess elastic potential energy stored in the high-strength spring 113 is released, pushing the top pressure plate 212 to press tightly against the outer wall of the column 13. When the high-strength spring 113 pushes the moving block 211 to press tightly against the outer wall of the column 13, the pressure lost by the clamping blocks 221 on both sides is replenished by the elastic potential energy released by the high-strength spring 113, thereby ensuring that the total pressure of the clamping blocks 221 and the top pressure plate 212 on the column 13 remains basically unchanged. Through the application of the above components, the problem of slippage caused by the changing tension on the attachment rod 16 when the tower crane moves is effectively prevented. This prevents the attachment ring 14 from having a larger contact pressure on one side and a smaller contact pressure on the other side.

[0036] Taking advantage of the feature that the attachment ring 14 is fixed to the outer wall of the column 13, when the attachment ring 14 remains fixed, it will slightly slide down due to its own weight. This sliding distance increases over time. When the top pressure plate 212 contacts the outer wall of the column 13, the wedge block 311 will also contact the outer wall of the column 13. When the attachment ring 14 slides down, causing the top pressure plate 212 to slide downwards, the friction between the wedge block 311 and the column 13 is greater than the friction between the wedge block 311 and the top pressure plate 212, and the length of the movable groove 213 is greater than the protrusion block 313. At this time, the position of the wedge block 311 on the outer wall of the column 13 remains unchanged, but its position relative to the top pressure plate 212 changes. As the attachment ring 14 slides downwards relative to the wedge surface, the greater the downward distance of the attachment ring 14, the greater the pressure exerted by the top pressure plate 212 on the first wedge block 311. The second wedge block 321 follows the same principle. When the clamping block 221 slides down with the attachment ring 14, the second wedge block 321 moves upwards relative to the clamping block 221, increasing the pressure exerted by the clamping block 221 on the second wedge block 321. As a result, the first wedge block 311 and the second wedge block 321 exert extremely strong pressure on the column 13, thereby slowing down the downward trend of the attachment ring 14. Through the application of the above components, the problem of the attachment ring 14 sliding downwards and falling out of the predetermined position due to its own gravity after long-term use, resulting in a deviation in the force, is effectively prevented.

[0037] Utilizing the characteristics of the rubber pads 314 and 324 adhering to the outer surface of the column 13, the attachment rod 16 is subjected not only to tension but also to the weight of the tower crane, generating a downward thrust. This results in the attachment rod 16 exerting a downward pulling force on the attachment ring 14. At this time, the upper contact pressure on the left side of the attachment ring 14 is slightly less than the lower pressure, while the upper contact pressure on the right side is slightly greater than the lower pressure. During fixing, both the clamping block 221 and the moving block 211 are tightly attached to the outer wall of the column 13, and the rubber pads 314 and 324 are also tightly attached to the outer wall of the column 13. The thicknesses of the rubber pads 314 and 324 are different, with the thicker side... The rubber pads are positioned on the side with lower pressure and the thinner side on the side with higher pressure, ensuring that the rubber pads always contact the outer wall of the column 13. Rubber pad 314 and rubber pad 324 are respectively inserted into slots 312 and 322. Both slots are designed such that the diameter of the side closest to the rubber pad is smaller than the inner wall of the slot, thus preventing the rubber pads from falling off. The application of these components effectively prevents the attachment rod 16 from exerting a downward pulling force on the attachment ring 14, which would cause unequal pressure on the upper and lower sides of the attachment ring 14, resulting in a smaller area but greater squeezing force on the outer wall of the column 13 on the side with higher pressure, leading to localized deformation of the column 13.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A heavy-duty tower crane column hoop attachment connection device for steel structure building construction, comprising a column (13), wherein an attachment ring (14) is sleeved on the outer wall of the column (13), an ear plate (15) is fixedly connected to the left outer wall of the attachment ring (14), and two attachment rods (16) are rotatably connected to the outer wall of the ear plate (15), characterized in that, Also includes: Fixing mechanism (1), which is fixedly installed on the inner wall of attachment ring (14); The active mechanism (2) is fixedly installed on the outer wall of the fixed mechanism (1); A pressing mechanism (3) is fixedly installed on the outer wall of the movable mechanism (2); Among them, the attachment ring (14) is made of two identical parts fixed together by bolts. The attachment ring (14) is close to the outer wall of the column (13). The attachment rod (16) is fixedly connected to the tower crane frame on the side away from the ear plate (15). The length and installation angle of the attachment rod (16) can be adjusted according to the site conditions.

2. The heavy-duty tower crane column hoop attachment connection device for steel structure building construction according to claim 1, characterized in that: The fixing mechanism (1) includes: A limiting component (11) is fixedly installed on the inner wall of the attachment ring (14); Linkage assembly (12), which is fixedly disposed on the bottom inner wall of attachment ring (14); The linkage assembly (12) can push the movable mechanism (2) when it moves.

3. The heavy-duty tower crane column hoop attachment connection device for steel structure building construction according to claim 2, characterized in that: The activity organization (2) includes: Top block assembly (21), which is slidably disposed on the outer wall of limiting assembly (11); A clamping assembly (22) is fixedly installed on the outer wall of the connecting rod assembly (12); When the top block assembly (21) moves, it can drive the connecting rod assembly (12) to move, and then drive the clamping assembly (22) to move.

4. The heavy-duty tower crane column hoop attachment connection device for steel structure building construction according to claim 3, characterized in that: The clamping mechanism (3) includes: The facet assembly (31) is slidably mounted on the side of the top block assembly (21) away from the limiting assembly (11); Large surface assembly (32), which is slidably mounted on the side of clamping assembly (22) away from link assembly (12); Both the small-face component (31) and the large-face component (32) are in close contact with the outer wall of the column (13) during operation.

5. The heavy-duty tower crane column hoop attachment connection device for steel structure building construction according to claim 4, characterized in that: The limiting component (11) includes two fixing blocks (111) fixedly connected to the inner wall of the attachment ring (14). Two guide posts (112) are fixedly connected to the side of the two fixing blocks (111) away from the attachment ring (14). A high-strength spring (113) is fixedly connected to the side of the fixing blocks (111) away from the attachment ring (14). Among them, the two fixed blocks (111) are set in a mirror image, the two guide posts (112) are set in a mirror image on the fixed blocks (111), and the high-strength spring (113) is initially in a free state.

6. The heavy-duty tower crane column hoop attachment connection device for steel structure building construction according to claim 5, characterized in that: The linkage assembly (12) includes several fixed rods (121) fixedly connected to the inner wall of the attachment ring (14). Two V-shaped connecting rods (122) are rotatably connected to the outer walls of the several fixed rods (121). Two right-angle connecting rods (123) are rotatably connected to the side of the two V-shaped connecting rods (122) away from the fixed block (111). A rotating rod (124) is fixedly connected to the side of the two V-shaped connecting rods (122) close to the fixed block (111). Among them, there are four fixed rods (121), and two V-shaped connecting rods (122) on one fixed rod (121) are fixedly connected to the same rotating rod (124).

7. The heavy-duty tower crane column hoop attachment connection device for steel structure building construction according to claim 6, characterized in that: The top block assembly (21) includes a movable block (211) slidably connected to the outer wall of the guide post (112). A top pressure plate (212) is fixedly connected to the side of the movable block (211) away from the fixed block (111). Two movable slots (213) are opened on the top of the movable block (211), and two movable vertical slots (214) are opened on the inner wall of the top pressure plate (212). Among them, the two movable slots (213) are set in a mirror image, and the two movable slots (213) are respectively adapted to the two rotating rods (124). The two movable vertical slots (214) are set in a mirror image. The rotating rod (124) slides while rotating on the inner wall of the movable slot (213). The high-strength spring (113) is fixedly connected to the movable block (211) on the side away from the fixed block (111).

8. The heavy-duty tower crane column hoop attachment connection device for steel structure building construction according to claim 7, characterized in that: The clamping assembly (22) includes a clamping block (221) fixedly connected to the side of the right-angle connecting rod (123) away from the fixed rod (121), and the clamping block (221) has two movable vertical slots (222) on the side away from the right-angle connecting rod (123). In this configuration, a clamping block (221) is fixed between every two right-angle connecting rods (123), and the two movable vertical slots (222) are set in a mirror image.

9. A heavy-duty tower crane column hoop attachment connection device for steel structure building construction according to claim 7, characterized in that: The small face assembly (31) includes a wedge-shaped block (311) slidably connected to the outer wall of the top pressure plate (212). Two locking grooves (312) are provided on the side of the wedge-shaped block (311) away from the top pressure plate (212). Two protruding blocks (313) are fixedly connected to the side wall of the wedge-shaped block (311). A rubber pad (314) is fixedly connected to the side of the wedge-shaped block (311) away from the top pressure plate (212). Among them, the two protruding blocks (313) are respectively adapted to the two movable vertical grooves (214), and the diameter of the side of the two locking grooves (312) near the rubber pad (314) is smaller than the inner wall diameter of the locking groove (312). The rubber pad (314) fits the surface of the wedge block (311) and is inserted into the locking groove (312). The thickness of the rubber pad (314) is different on the upper and lower sides.

10. A heavy-duty tower crane column hoop attachment connection device for steel structure building construction according to claim 8, characterized in that: The large surface component (32) includes a wedge-shaped block two (321) slidably connected to the inner wall of the clamping block (221). Two locking grooves (322) are opened on the side of the wedge-shaped block two (321) near the rubber pad two (324). Two protruding blocks two (323) are fixedly connected to the side wall of the wedge-shaped block two (321). A rubber pad two (324) is fixedly connected to the side of the wedge-shaped block two (321) away from the clamping block (221). Among them, the two protruding blocks (323) are respectively adapted to the two movable vertical grooves (222). The diameter of the two locking grooves (322) on the side near the rubber pad (324) is smaller than the inner wall of the locking groove (322). The rubber pad (324) is divided into three sections. The middle part fits the wedge block (321), and the other two parts of the rubber pad (324) fit the clamping block (221). The rubber pad (324) is inserted into the two locking grooves (322). The thickness of the rubber pad (324) is different on the upper and lower sides.

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