Tower crane attachment arm device for thin-walled structure construction

Abstract

The present application relates to the technical field of building engineering, and discloses a tower crane attached arm device for thin-wall structure construction, which comprises a connecting frame, one side of the connecting frame is provided with a connecting arm, one end of the connecting arm is provided with a fine adjustment mechanism, the fine adjustment mechanism comprises a telescopic arm, the telescopic arm is sleeved on one end of the connecting arm, a threaded rod is arranged on the telescopic arm, a first rotating piece is arranged on the threaded rod, a movable block is sleeved on the threaded rod, two hinge rods are arranged on the two sides of the movable block respectively, one end of the two hinge rods is hingedly connected with the connecting arm and the telescopic arm respectively, the telescopic arm can be telescoped on the connecting arm by rotating the first rotating piece, and thus the situation that the attached arm cannot be installed is avoided, and the applicability of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a tower crane jib device for thin-walled structure construction. Background Technology

[0002] Tower cranes are the most commonly used lifting equipment on construction sites. They are also known as "tower cranes" because they are made by extending (height) section by section (referred to as "standard sections") to lift construction materials such as steel bars, timber, concrete, and steel pipes.

[0003] Chinese patent CN216687209U discloses an auxiliary tower crane jib device, including a tower crane jib body, diagonal supports, and cantilevered steel beams. Multiple cantilevered steel beams are fixed along the height direction to the main structure of the building closest to the tower crane. One end of each cantilevered steel beam is a connecting end, which is fixed to the main structure of the building by at least two sets of through-wall bolts. The other end of the cantilevered steel beam extends out of the building and is suspended in mid-air. One side of the suspended end of the cantilevered steel beam is provided with diagonal supports connected to the main structure of the building, and the other side is connected to the tower crane jib body. This device solves the problem of using non-standard attachment components or difficulty in attachment due to insufficient positioning angle of the tower crane's jib or the shape of the facade. This device is reusable and recyclable, and is easy to construct, simple in structure, reliable in performance, and highly safe. It provides effective support and assistance when the tower crane's jib is difficult to adjust in construction projects. However, there may be some errors in the jib installation process, resulting in the jib being too long or too short, which reduces its applicability. The jib is connected to the building body through multiple sets of bolts, which is troublesome to install, and it is difficult to achieve multi-directional installation of the jib. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a tower crane jib device for thin-walled structure construction, which has advantages such as fine adjustment, easy installation, and multi-directional installation. It solves the problems that the jib installation process may have certain errors, resulting in the jib being too long or too short, poor applicability, and the jib being connected to the building body by multiple sets of bolts, which is troublesome to install and difficult to install from multiple directions.

[0006] (II) Technical Solution

[0007] To address the technical problems of the aforementioned auxiliary arm installation process, which can lead to errors such as excessively long or short auxiliary arms, poor applicability, cumbersome installation due to multiple sets of bolts connecting the auxiliary arm to the building body, and difficulty in multi-directional installation, this invention provides the following technical solution: a connecting frame, a connecting arm on one side of the connecting frame, a fine-tuning mechanism at one end of the connecting arm, a telescopic arm sleeved on one end of the connecting arm, a threaded rod on the telescopic arm, a first rotating component on the threaded rod, and a movable block sleeved on the threaded rod, the movable block interacting with the threaded rod... The movable block has a threaded connection, with two hinged rods on each side. One end of each hinged rod is hinged to the movable block, and the other end is hinged to the connecting arm and the telescopic arm, respectively. Rotating the first rotating component drives the threaded rod to move the movable block, which in turn drives the two hinged rods to move the telescopic arm along the direction of the connecting arm. A connecting mechanism is provided on one side of the fine-tuning mechanism, and a pre-embedded part is provided on one side of the connecting mechanism. The connecting mechanism is used to connect with the pre-embedded part. An anti-detachment mechanism is provided on one side of the pre-embedded part, and a stabilizing mechanism is provided on one side of the connecting arm to stabilize the connecting arm.

[0008] Preferably, the connecting mechanism includes a fixing block, a first groove, and a buckle. A first universal joint is fixedly installed at one end of the telescopic arm. The fixing block is fixedly connected to the first universal joint. The first groove is formed on one side of the fixing block. The buckle is rotatably engaged with the fixing block.

[0009] Preferably, the buckle includes a rotating shaft, a fixing rod, a retaining shaft, and a stop. The rotating shaft is rotatably fitted onto the fixing block, and one end of the rotating shaft passes through the first groove and extends outside the fixing block. The fixing rod is fixedly installed on the end of the rotating shaft located outside the fixing block and is positioned above the fixing block. The retaining shaft is fixedly installed at the bottom of the fixing rod and is positioned on one side of the fixing block. The stop is fixedly installed on the rotating shaft and is positioned within the first groove. During the process of engaging with the embedded part through the connecting mechanism, the connecting mechanism drives the rotating shaft, fixing rod, retaining shaft, and stop to move simultaneously. When the stop is pressed against the embedded part, the stop drives the rotating shaft to drive the fixing rod to move, and the fixing rod drives the retaining shaft to move into the first groove.

[0010] Preferably, the embedded part is disposed in the first groove and slides in cooperation with the inner wall of the first groove. A barb is provided on one outer wall of the embedded part. An avoidance opening is provided on the side of the embedded part away from the barb, and the avoidance opening is disposed in the first groove. The avoidance opening is adapted to the rotating shaft. A hanging opening is provided on one side of the embedded part, and the locking shaft is disposed in the hanging opening and adapted to the hanging opening.

[0011] Preferably, the anti-detachment mechanism includes a connecting block, an elastic element is disposed inside the connecting block, an anti-detachment block is slidably fitted inside the connecting block, the elastic element is disposed between the connecting block and the anti-detachment block, and an inclined surface is provided on the anti-detachment block.

[0012] Preferably, a second universal joint is provided on one side of the connecting frame, the connecting arm is fixedly connected to the second universal joint, a second groove is provided on the telescopic arm, the threaded rod is rotatably engaged on the telescopic arm, and one end of the threaded rod passes through the second groove and extends to the outside of the telescopic arm, and the movable block is disposed in the second groove.

[0013] Preferably, the stabilizing mechanism includes an internally threaded sleeve, which is hinged to the connecting arm. A bidirectional lead screw is installed on the internal thread of the internally threaded sleeve, and a second rotating component is fixedly installed on the bidirectional lead screw.

[0014] Preferably, a mounting block is provided on the inner side of the connecting frame, and a mounting hole is provided on the top of the mounting block.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a tower crane jib device for thin-walled structure construction, which has the following advantages:

[0017] 1. The tower crane jib device for thin-walled structure construction uses a first rotating component to drive a threaded rod to move a movable block. The movable block then moves two hinged rods to spread the connecting arm and the telescopic arm apart to increase their length. By rotating the first rotating component, the telescopic arm can extend and retract on the connecting arm, thus avoiding the situation where the jib cannot be installed and improving the applicability of the device.

[0018] 2. In the tower crane boom device for this thin-walled structure construction, during the adjustment of the telescopic boom, the telescopic boom drives the fixed block, the first groove, the rotating shaft, the fixed rod, the locking shaft, and the stop block to move simultaneously. During the movement, the first groove aligns with the embedded part. With continuous movement, the embedded part will contact the stop block and squeeze it. After the stop block is squeezed, it drives the rotating shaft to drive the fixed rod to move. The fixed rod drives the locking shaft to move into the hanging hole on the embedded part and locks the embedded part in the first groove, achieving self-locking. During the rotation of the locking shaft, it squeezes the anti-detachment block and causes the anti-detachment block to move. The movement of the anti-detachment block can squeeze the elastic element and store a certain amount of elastic potential energy. When the locking shaft moves into the hanging hole, the anti-detachment block can return to its initial position under the action of the elastic force of the elastic element. After the coordination is completed, the first rotating part rotates in the opposite direction to drive the telescopic boom to retract. The telescopic boom drives the locking shaft to tighten the embedded part to complete the fixation. By adjusting the telescopic boom, the buckle can be made to abut against the embedded part to complete the locking. Compared with the traditional bolt installation, the operation is simpler and reduces the time workers spend working at height, thus improving work efficiency.

[0019] 3. The tower crane boom device for this thin-walled structure construction can adjust the angle between the connecting arm and the connecting frame by adjusting the second rotating component to drive the bidirectional screw to drive the internal threaded sleeve. After adjustment, the connecting arm can be swung up and down according to the set position of the embedded part to control whether the connecting arm is installed horizontally or at an angle, which increases the number of installation methods and allows the device to be installed in multiple directions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 This is a three-dimensional cross-sectional view of the fine-tuning mechanism of the present invention;

[0022] Figure 3 This is a three-dimensional cross-sectional view of the connecting mechanism portion of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the buckle portion of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the embedded part and the anti-detachment mechanism of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the connecting arm and telescopic arm of the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the stabilizing mechanism of the present invention;

[0027] Figure 8 This is a three-dimensional structural diagram of the connecting frame portion of the present invention.

[0028] In the diagram: 1. Connecting frame; 12. Connecting arm; 13. First universal joint; 14. Second universal joint; 15. Mounting block; 16. Mounting hole; 2. Fine-tuning mechanism; 21. Telescopic arm; 22. Threaded rod; 23. First rotating component; 24. Movable block; 25. Hinge rod; 26. Second groove; 3. Connecting mechanism; 31. Fixing block; 32. First groove; 33. Buckle; 331. Rotating shaft; 332. Fixing rod; 333. Snap shaft; 334. Stop block; 4. Embedded part; 41. Barb; 42. Clearance opening; 43. Hanging opening; 5. Anti-detachment mechanism; 51. Connecting block; 52. Anti-detachment block; 6. Stabilizing mechanism; 61. Internal threaded sleeve; 62. Bidirectional lead screw; 63. Second rotating component. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-8 A tower crane boom device for thin-walled structure construction includes a connecting frame 1. A connecting arm 12 is provided on one side of the connecting frame 1. A fine-adjustment mechanism 2 is provided at one end of the connecting arm 12. The fine-adjustment mechanism 2 includes a telescopic arm 21, which is sleeved on one end of the connecting arm 12. A threaded rod 22 is provided on the telescopic arm 21, and a first rotating component 23 is provided on the threaded rod 22. A movable block 24 is sleeved on the threaded rod 22, and the movable block 24 is threadedly engaged with the threaded rod 22. Two hinged rods 25 are respectively provided on both sides of the movable block 24, and one end of each of the two hinged rods 25 is connected to the movable block 24. The two hinged rods 25 are respectively hinged to the connecting arm 12 and the telescopic arm 21. The first rotating part 23 drives the threaded rod 22 to drive the movable block 24 to move. The movable block 24 drives the two hinged rods 25 to drive the telescopic arm 21 to move along the direction of the connecting arm 12. A connecting mechanism 3 is provided on one side of the fine adjustment mechanism 2. A pre-embedded part 4 is provided on one side of the connecting mechanism 3. The connecting mechanism 3 is used to connect with the pre-embedded part 4. An anti-detachment mechanism 5 is provided on one side of the pre-embedded part 4. A stabilizing mechanism 6 is provided on one side of the connecting arm 12. The stabilizing mechanism 6 is used to stabilize the connecting arm 12.

[0031] When using this device to fix a tower crane, the embedded part 4 can be pre-embedded in the building, and then the connecting frame 1 can be sleeved and installed on the tower crane. After installation, the stabilizing mechanism 6 can be adjusted to support the connecting arm 12 as needed. After the connecting arm 12 is supported, it should form a certain angle with the connecting frame 1 (the connecting arm 12 is not perpendicular to the connecting frame 1). After adjustment, the connecting arm 12 can be swung up and down according to the set position of the embedded part 4 to control whether the connecting arm 12 is installed horizontally or at an angle. When the distance between the connecting frame 1 and the embedded part 4 is greater than that of this auxiliary boom device... When the first rotating part 23 can be rotated, the first rotating part 23 drives the threaded rod 22 to move the movable block 24. The movable block 24 drives the two hinge rods 25 to move and spread the connecting arm 12 and the telescopic arm 21 to increase the length. After the telescopic arm 21 is spread to the set position, the connecting mechanism 3 is aligned with the embedded part 4 and the first rotating part 23 is continuously rotated, so that the connecting mechanism 3 and the embedded part 4 can cooperate and achieve self-locking. After the cooperation is completed, the first rotating part 23 is rotated in the opposite direction to drive the telescopic arm 21 to retract. The telescopic arm 21 pulls the connecting mechanism 3 tight on the embedded part 4 to complete the fixation.

[0032] Furthermore, the connecting mechanism 3 includes a fixing block 31, a first groove 32, and a buckle 33. A first universal joint 13 is fixedly installed at one end of the telescopic arm 21. The fixing block 31 is fixedly connected to the first universal joint 13. The first groove 32 is opened on one side of the fixing block 31. The buckle 33 is rotatably engaged with the fixing block 31. During the process of the connecting mechanism 3 engaging with the embedded part 4, the first rotating part 23 is rotated to drive the fixing block 31. The first groove 32 and the buckle 33 move simultaneously on the embedded part 4. During the movement, the embedded part 4 engages with the first groove 32 and squeezes the buckle 33, causing the buckle 33 to rotate and fix the embedded part 4 with the connecting mechanism 3.

[0033] Furthermore, the buckle 33 includes a rotating shaft 331, a fixing rod 332, a retaining shaft 333, and a stop block 334. The rotating shaft 331 is rotatably fitted onto the fixing block 31, and one end of the rotating shaft 331 passes through the first groove 32 and extends outside the fixing block 31. The fixing rod 332 is fixedly installed on the end of the rotating shaft 331 located outside the fixing block 31, and the fixing rod 332 is positioned above the fixing block 31. The retaining shaft 333 is fixedly installed on the bottom of the fixing rod 332, and the retaining shaft 333 is positioned on one side of the fixing block 31. The stop block 334 is fixedly installed on the rotating shaft 331, and the stop block 334 is positioned within the first groove 32. During the process of the connecting mechanism 3 cooperating with the embedded part 4, the connection... Mechanism 3 drives the rotating shaft 331, fixing rod 332, locking shaft 333, and stop 334 to move simultaneously. When the stop 334 is pressed against the embedded part 4, the stop 334 drives the rotating shaft 331 to drive the fixing rod 332 to move. The fixing rod 332 drives the locking shaft 333 to move into the first groove 32. During the installation and cooperation between the connecting mechanism 3 and the embedded part 4, the connecting mechanism 3 drives the rotating shaft 331, fixing rod 332, locking shaft 333, and stop 334 to move simultaneously. When the stop 334 is pressed against the embedded part 4, the stop 334 drives the rotating shaft 331 to drive the fixing rod 332 to move. The fixing rod 332 drives the locking shaft 333 to move and lock the embedded part into the first groove 32 to complete the fixation.

[0034] Furthermore, the embedded part 4 is set in the first groove 32 and slides in cooperation with the inner wall of the first groove 32. A barb 41 is provided on one outer wall of the embedded part 4. An avoidance opening 42 is opened on the side of the embedded part 4 away from the barb 41, and the avoidance opening 42 is set in the first groove 32. The avoidance opening 42 is adapted to the rotating shaft 331. A hanging opening 43 is provided on one side of the embedded part 4. The clamping shaft 333 is set in the hanging opening 43 and is adapted to the hanging opening 43. The hanging opening 43 is used to cooperate with the clamping shaft 333.

[0035] Furthermore, the anti-detachment mechanism 5 includes a connecting block 51, an elastic element (which can be of the prior art) is provided inside the connecting block 51, and an anti-detachment block 52 is slidably fitted inside the connecting block 51. The elastic element is located between the connecting block 51 and the anti-detachment block 52, and an inclined surface is provided on the anti-detachment block 52. During the rotation of the locking shaft, it will squeeze the anti-detachment block 52 and cause the anti-detachment block 52 to move. The movement of the anti-detachment block 52 can squeeze the elastic element and store a certain amount of elastic potential energy. When the locking shaft 333 moves into the shaft hanging port 43, the anti-detachment block 52 can return to the initial position under the action of the elastic force of the elastic element to prevent the locking shaft 333 from detaching from the hanging port 43.

[0036] Furthermore, a second universal joint 14 is provided on one side of the connecting frame 1, the connecting arm 12 is fixedly connected to the second universal joint 14, a second groove 26 is provided on the telescopic arm 21, the threaded rod 22 is rotatably engaged on the telescopic arm 21, and one end of the threaded rod 22 passes through the second groove 26 and extends to the outside of the telescopic arm 21, and the movable block 24 is provided in the second groove 26.

[0037] Furthermore, the stabilizing mechanism 6 includes an internally threaded sleeve 61, which is hinged to the connecting arm 12. A bidirectional lead screw 62 is installed on the internal thread of the internally threaded sleeve 61, and a second rotating component 63 is fixedly installed on the bidirectional lead screw 62. By rotating the second rotating component 63, the bidirectional lead screw 62 is driven to drive the internally threaded sleeve 61 to move, thereby adjusting the angle between the connecting arm 12 and the connecting frame 1, and increasing the overall stability of the mechanism.

[0038] Furthermore, an installation block 15 is provided on the inner side of the connecting frame 1, and an installation hole 16 is provided on the top of the installation block 15; during installation, the connecting frame can be placed between two standard sections of the tower crane and connected to the two standard sections through the installation block 15.

[0039] Working principle: When using this device to fix a tower crane, the barb 41 on the embedded part 4 can be embedded in the building. Then, the connecting frame 1 is fitted between the two standard sections on the tower crane and connected to the two standard sections through the mounting block 15 and mounting hole 16. After installation, the angle between the connecting arm 12 and the connecting frame 1 can be adjusted as needed by adjusting the second rotating part 63 to drive the double-acting screw 62 to drive the internal threaded sleeve 61 (the connecting arm 12 is not perpendicular to the connecting frame 1). After adjustment, the connecting arm 12 can be swung up and down according to the set position of the embedded part 4 to control whether the connecting arm 12 is installed horizontally or at an angle. When there is a certain gap between the distance between the connecting frame 1 and the embedded part 4 and this auxiliary arm device, the first rotating part 23 can be rotated. The first rotating part 23 drives the threaded rod 22 to drive the movable block 24 to move. The movable block 24 drives the two hinge rods 25 to move, thus spreading the connecting arm 12 and the telescopic arm 21 to increase the length. At the same time, the telescopic arm 21 drives the fixed block 31, the first groove 32, the rotating shaft 331, the fixed rod 332, the locking shaft 333, and the stop block 334 to move simultaneously. During the movement, the first groove 32 aligns with the embedded part 4. With continuous movement, the embedded part 4 will contact the stop block 334 and squeeze it. After the stop block 334 is squeezed, it drives the rotating shaft 331 to drive the fixed rod 332 to move. The fixed rod 332 drives the locking shaft 333 to move into the hanging port 43 on the embedded part 4 and lock the embedded part 4 into the first groove 32 to achieve self-locking. During the rotation, the locking shaft 333 will squeeze the anti-detachment block 52 and make the anti-detachment block 52 move. The movement of the anti-detachment block 52 can squeeze the elastic element and store a certain amount of elastic potential energy. When the locking shaft 333 moves into the hanging port 43, the anti-detachment block 52 can return to the initial position under the action of the elastic force of the elastic element. After the cooperation is completed, the first rotating part 23 is rotated in the opposite direction to drive the telescopic arm 21 to retract. The telescopic arm 21 drives the locking shaft 333 to tighten the embedded part 4 to complete the fixation.

[0040] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tower crane jib device for thin-walled structure construction, comprising a connecting frame (1), characterized in that: A connecting arm (12) is provided on one side of the connecting frame (1). A fine-tuning mechanism (2) is provided at one end of the connecting arm (12). The fine-tuning mechanism (2) includes a telescopic arm (21). The telescopic arm (21) is sleeved on one end of the connecting arm (12). A threaded rod (22) is provided on the telescopic arm (21), and a first rotating member (23) is provided on the threaded rod (22). A movable block (24) is sleeved on the threaded rod (22). The movable block (24) is threadedly engaged with the threaded rod (22). Two hinged rods (25) are provided on both sides of the movable block (24). One end of each of the two hinged rods (25) is hinged to the movable block (24), and the other end of each of the two hinged rods (25) is hinged to the connecting arm (12) and the telescopic arm (21), respectively. The movable block (24) is moved by rotating the threaded rod (22) through the first rotating member (23). (24) Drive two hinge rods (25) to drive the telescopic arm (21) to move along the direction of the connecting arm (12); a connecting mechanism (3) is provided on one side of the fine adjustment mechanism (2), and a pre-embedded part (4) is provided on one side of the connecting mechanism (3). The connecting mechanism (3) is used to connect with the pre-embedded part (4). An anti-detachment mechanism (5) is provided on one side of the pre-embedded part (4). A stabilizing mechanism (6) is provided on one side of the connecting arm (12). The stabilizing mechanism (6) is used to stabilize the connecting arm (12). The connecting mechanism (3) includes a fixing block (31), a first groove (32) and a buckle (33). A first universal joint (13) is fixedly installed at one end of the telescopic arm (21). The fixing block (31) is fixedly connected to the first universal joint (13). The first groove (32) is opened on one side of the fixing block (31). The buckle (33) is rotatably engaged with the fixing block (31). The buckle (33) includes a rotating shaft (331), a fixing rod (332), a retaining pin (333), and a stop (334). The rotating shaft (331) is rotatably fitted onto the fixing block (31), and one end of the rotating shaft (331) passes through the first groove (32) and extends outside the fixing block (31). The fixing rod (332) is fixedly installed on the end of the rotating shaft (331) located outside the fixing block (31), and the fixing rod (332) is positioned above the fixing block (31). The retaining pin (333) is fixedly installed at the bottom of the fixing rod (332), and the retaining pin (333)... The stop block (334) is fixedly installed on the rotating shaft (331) and is located in the first groove (32). During the process of cooperating with the embedded part (4) through the connecting mechanism (3), the connecting mechanism (3) drives the rotating shaft (331), the fixed rod (332), the locking shaft (333), and the stop block (334) to move simultaneously. When the stop block (334) is pressed against the embedded part (4), the stop block (334) drives the rotating shaft (331) to drive the fixed rod (332) to move, and the fixed rod (332) drives the locking shaft (333) to move into the first groove (32).

2. The tower crane jib device for thin-walled structure construction according to claim 1, characterized in that: The embedded part (4) is set in the first groove (32) and slides in cooperation with the inner wall of the first groove (32). A barb (41) is provided on one outer wall of the embedded part (4). An avoidance opening (42) is opened on the side of the embedded part (4) away from the barb (41), and the avoidance opening (42) is set in the first groove (32). The avoidance opening (42) is adapted to the rotating shaft (331). A hanging opening (43) is provided on one side of the embedded part (4). The locking shaft (333) is set in the hanging opening (43) and is adapted to the hanging opening (43).

3. The tower crane jib device for thin-walled structure construction according to claim 1, characterized in that: The anti-detachment mechanism (5) includes a connecting block (51), an elastic element is provided inside the connecting block (51), an anti-detachment block (52) is slidably fitted inside the connecting block (51), the elastic element is provided between the connecting block (51) and the anti-detachment block (52), and an inclined surface is provided on the anti-detachment block (52).

4. The tower crane jib device for thin-walled structure construction according to claim 1, characterized in that: A second universal joint (14) is provided on one side of the connecting frame (1). The connecting arm (12) is fixedly connected to the second universal joint (14). A second groove (26) is provided on the telescopic arm (21). The threaded rod (22) is rotatably engaged on the telescopic arm (21). One end of the threaded rod (22) passes through the second groove (26) and extends to the outside of the telescopic arm (21). The movable block (24) is provided in the second groove (26).

5. A tower crane jib device for thin-walled structure construction according to claim 1, characterized in that: The stabilizing mechanism (6) includes an internally threaded sleeve (61), which is hinged to the connecting arm (12). A two-way lead screw (62) is installed on the internal thread of the internally threaded sleeve (61), and a second rotating component (63) is fixedly installed on the two-way lead screw (62).

6. A tower crane jib device for thin-walled structure construction according to claim 1, characterized in that: The inner side of the connecting frame (1) is provided with a mounting block (15), and the top of the mounting block (15) is provided with a mounting hole (16).

Images