Wall-attached node structure of tower crane

Abstract

According to the technical scheme, the tower crane wall-attached node structure is characterized by comprising a section tower, a tower body positioning assembly, a threaded connecting rod and an embedded positioning assembly, the embedded positioning assembly comprises a first connecting plate, a second connecting plate, an elastic connecting piece and a threaded ring, and the first connecting plate is fixedly connected with the second connecting plate; a conical guide hole is formed in the first connecting plate, a threaded hole is formed in the second connecting plate, the elastic connecting piece is fixedly connected to the second connecting plate, and the threaded ring is fixedly connected to the elastic connecting piece. How to guide a threaded connecting rod to be connected with an embedded positioning assembly and how to reinforce the connecting strength in the mounting direction are two common problems in actual construction, and the two problems are solved in the mode that a conical guide hole is formed in a first connecting plate, and an elastic connecting piece and a threaded ring are arranged; therefore, the tower crane wall attaching rod can be connected with the wall body connecting assembly without operation at the position of the wall body connecting assembly by a worker.

Description

Technical Field

[0001] The present invention relates to a node structure, and more particularly to a tower crane wall-attached node structure. Background Art

[0002] The tower crane wall-attached node structure is a key part of the connection between the tower crane and the wall of the building, and its stability and safety are of vital importance. The current node structures mostly use tower crane wall-attached rods as the main connection medium, and are directly fixed through wall connection components pre-buried in the building wall. The tower crane wall-attached rods are usually used as accessories. After the tower crane tower body is installed, the tower crane wall-attached rods will be transported to the corresponding wall connection components, and then manually adjusted and installed on the tower body and both ends of the building at the same time. However, in actual use, it is found that the installation position of the wall connection components in modern buildings is usually close to the balcony and other locations where it is convenient for workers to stand. Although it can be convenient to install, the strength of the wall is prioritized due to construction needs, and the position with higher wall strength is usually not convenient for workers to stand, resulting in low installation efficiency. Therefore, the present invention provides a tower crane wall-attached node structure, which does not require workers to operate at the wall connection component and can also connect the tower crane wall-attached rod with the wall connection component.

[0003] In view of the above reasons, how to connect the tower crane wall rod with the wall connection assembly without the need for workers to operate at the wall connection assembly is exactly the problem considered in this application. Summary of the invention

[0004] In view of the shortcomings of the prior art, a tower crane wall-attached node structure is provided, which can connect the tower crane wall-attached rod with the wall connection assembly without the need for workers to operate at the wall connection assembly.

[0005] To achieve the above-mentioned purpose, the following technical scheme is provided: a tower crane wall-attached node structure, including a segment tower, a tower body positioning assembly, a threaded connecting rod and a pre-embedded positioning assembly, the tower body positioning assembly is installed inside the segment tower, the threaded connecting rod is connected to the tower body positioning assembly and the tower body positioning assembly is used to drive the threaded connecting rod to rotate, the pre-embedded positioning assembly includes a first connecting plate, a second connecting plate, an elastic connecting piece and a threaded ring, the first connecting plate is fixedly connected to the second connecting plate, a conical guide hole is provided on the first connecting plate, a threaded hole corresponding to the guide hole is provided on the second connecting plate, the elastic connecting piece is fixedly connected to the side of the second connecting plate away from the first connecting plate, and the threaded ring is fixedly connected to the side of the elastic connecting piece away from the second connecting plate.

[0006] In summary, the above technical solution has the following beneficial effects: the threaded connecting rod can be used as a tower crane wall-attached rod. Since the threaded connecting rod needs to be operated to extend from the tower body positioning component to the embedded positioning component, and the embedded positioning component is directly used as the wall connection component of the tower crane, it is necessary to adopt a form that does not require operator operation as much as possible at the embedded positioning component, which leads to two problems: how to guide the threaded connecting rod to connect with the embedded positioning component and how to strengthen the connection strength in the installation direction;

[0007] As to the first problem, the essence of the difficulty in directly connecting the threaded connecting rod and the embedded positioning component is that even if the relative positions of the two have been calculated before installation, objective factors such as a certain degree of error in hardware assembly will cause a certain deviation between the actual installation position and the predetermined installation position. In the prior art, the position can be directly adjusted because there are workers assisting in the installation at the embedded positioning component, but the present invention does not require the assistance of workers. Therefore, a conical guide hole is provided on the first connecting plate, and the conical part can be expanded as much as possible, so that the guide threaded connecting rod can be guided to the threaded hole of the second connecting plate through the inclined inner wall during installation. The guide hole can play a role in amplifying the minimum installation distance deviation during the installation operation. When the installation distance deviation is too large, the workers at the tower section only need to adjust the angle of the tower body positioning component.

[0008] For the second problem, the fixation in the installation direction is mainly completed by the threaded hole on the second connecting plate and the threaded connecting rod, that is, the connection pressure is substantially concentrated on the thread, so it is necessary to disperse the pressure on the thread to ensure the connection strength in the installation direction. In the present invention, multiple elastic connectors are used to connect the threaded ring to form an expansion tube similar to a special incision design. When the threaded connecting rod rotates through the threaded ring, since the elastic connector is not a rigid component, although the thread on the threaded ring engages with the thread on the threaded connecting rod, friction will occur between the threads, and the threaded ring can also rotate. When the threaded ring rotates, the elastic connector will be twisted, and the length of the elastic connector in the installation direction will be reduced, while the length in the direction perpendicular to the installation will increase until the threaded ring abuts against the second connecting plate. After the elastic connector is deformed, it will abut against the second connecting plate, which substantially increases the contact area with the second connecting plate, thereby reducing the pressure. The threaded ring is relatively fixed to the threaded connecting rod, but the threaded ring is a movable component relative to the second connecting plate. Therefore, after the thread in the threaded hole fails, the threaded ring and the elastic connector can still prevent the threaded connecting rod from detaching from the installation direction, thereby strengthening the connection strength in the installation direction.

[0009] How to guide the threaded connecting rod to connect with the embedded positioning assembly and how to strengthen the connection strength in the installation direction are two common problems in actual construction. The present invention solves these two problems by setting a conical guide hole on the first connecting plate and setting an elastic connecting piece and a threaded ring, thereby achieving the connection between the tower crane wall rod and the wall connecting assembly without the need for workers to operate at the wall connecting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the tower crane wall-attached node structure;

[0011] Figure 2 It is a top view cross-section of the tower body positioning assembly;

[0012] Figure 3 It is the main cross-sectional view of the tower body positioning assembly;

[0013] Figure 4 Rear view of the assembly positioning for the tower;

[0014] Figure 5 It is a schematic diagram of the three-dimensional structure of the front half of the embedded positioning component;

[0015] Figure 6 It is a schematic diagram of the three-dimensional structure of the rear half of the embedded positioning component.

[0016] Reference numerals: 1. tower section; 2. tower body positioning assembly; 3. threaded connecting rod; 4. embedded positioning assembly;

[0017] 21. housing; 22. threaded sleeve; 23. first gear; 24. transmission shaft; 25. second gear; 26. sliding member;

[0018] 211, threaded through hole; 212, opening; 213, guide rail; 214, second positioning hole;

[0019] 261. handle; 262. positioning bolt;

[0020] 31. Elastic round head; 32. Contact plate;

[0021] 41. First connecting plate; 42. Second connecting plate; 43. Elastic connecting member; 44. Threaded ring; 45. Rotating connecting member; 46. Extended connecting member;

[0022] 421.Threaded hole. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0024] Reference Figure 1-6 As shown, the tower crane wall-attached node structure includes a section tower 1, a tower body positioning component 2, a threaded connecting rod 3 and a pre-embedded positioning component 4, the tower body positioning component 2 is installed inside the section tower 1, the threaded connecting rod 3 is connected to the tower body positioning component 2 and the tower body positioning component 2 is used to drive the threaded connecting rod 3 to rotate, the pre-embedded positioning component 4 includes a first connecting plate 41, a second connecting plate 42, an elastic connecting member 43 and a threaded ring 44, the first connecting plate 41 is fixedly connected to the second connecting plate 42, a conical guide hole is provided on the first connecting plate 41, and a threaded hole 421 corresponding to the guide hole is provided on the second connecting plate 42, the elastic connecting member 43 is fixedly connected to the second connecting plate 42 away from the first connecting plate 41, and the threaded ring 44 is fixedly connected to the elastic connecting member 43 away from the second connecting plate 42.

[0025] The threaded connecting rod 3 can be used as a tower crane wall-attached rod. Since the threaded connecting rod 3 needs to be operated to extend from the tower body positioning component 2 to the embedded positioning component 4, and the embedded positioning component 4 is directly used as a wall connection component of the tower crane, it is necessary to adopt a form that does not require operator operation as much as possible at the embedded positioning component 4, which leads to two problems: how to guide the threaded connecting rod 3 to connect with the embedded positioning component 4 and how to strengthen the connection strength in the installation direction;

[0026] As to the first problem, the essence of the difficulty in directly connecting the threaded connecting rod 3 and the embedded positioning component 4 is that even if the relative positions of the two have been calculated before installation, objective factors such as a certain degree of error in hardware assembly will cause a certain deviation between the actual installation position and the predetermined installation position. In the prior art, the position can be directly adjusted because of the assistance of staff at the embedded positioning component 4, while the present invention does not require the assistance of staff. Therefore, a conical guide hole is provided on the first connecting plate 41, and the conical part can be expanded as much as possible, so that the guiding threaded connecting rod 3 can be guided to the threaded hole 421 of the second connecting plate 42 through the inclined inner wall during installation. The guide hole can play a role in amplifying the minimum installation distance deviation during the installation operation. When the installation distance deviation is too large, the staff at the tower section 1 only needs to adjust the angle of the tower body positioning component 2.

[0027] As to the second problem, the fixation in the installation direction is mainly completed by the threaded hole 421 on the second connecting plate 42 and the threaded connecting rod 3, that is, the connection pressure is substantially concentrated on the thread. Therefore, it is necessary to disperse the pressure on the thread to ensure the connection strength in the installation direction. In the present invention, a plurality of elastic connectors 43 are used to connect the threaded ring 44 to form an expansion tube similar to a special incision design. When the threaded connecting rod 3 rotates through the threaded ring 44, since the elastic connector 43 is not a rigid component, although the thread on the threaded ring 44 engages with the thread on the threaded connecting rod 3, friction will be generated between the threads, and the threaded ring 44 can also rotate. When the elastic connector 43 is moved, the elastic connector 43 will be twisted, and the length of the elastic connector 43 in the installation direction will be reduced, while the length in the direction perpendicular to the installation direction will be increased until the threaded ring 44 abuts against the second connecting plate 42. After the elastic connector 43 is deformed, it will abut against the second connecting plate 42, which substantially increases the contact area with the second connecting plate 42, thereby reducing the pressure. The threaded ring 44 is relatively fixed to the threaded connecting rod 3, but the threaded ring 44 is a movable part relative to the second connecting plate 42. Therefore, after the thread in the threaded hole 421 fails, the threaded ring 44 and the elastic connector 43 can still prevent the threaded connecting rod 3 from detaching from the installation direction, thereby strengthening the connection strength in the installation direction.

[0028] How to guide the threaded connecting rod 3 to connect with the embedded positioning assembly 4 and how to strengthen the connection strength in the installation direction are two common problems in actual construction. The present invention solves these two problems by setting a conical guide hole on the first connecting plate 41 and setting an elastic connecting piece 43 and a threaded ring 44, thereby achieving the connection between the tower crane wall-attached rod and the wall connecting assembly without the need for staff to operate at the wall connecting assembly.

[0029] Furthermore, a plurality of tower body positioning components 2 are provided and are staggeredly arranged on both sides of the section tower 1;

[0030] Usually, the tower body positioning components 2 are evenly arranged in multiple positions on the same horizontal plane, but this method will cause excessive wear on a single part. In the present invention, the tower body positioning components 2 are staggered. The staggered tower body positioning components 2 can disperse the pressure when subjected to force, avoiding a certain horizontal surface of the tower body from being subjected to excessive pressure for a long time and accelerating wear, which can more effectively extend the overall service life and reduce the replacement frequency, thereby saving costs and improving construction safety.

[0031] Furthermore, the tower body positioning assembly 2 includes a housing 21, a threaded sleeve 22 and a first gear 23. The housing 21 is also provided with a threaded through hole 211 for the threaded connecting rod 3 to penetrate into the housing 21. The threaded sleeve 22 is arranged in the housing 21 and corresponds to the threaded through hole 211. The threaded sleeve 22 is fixedly connected to the first gear 23. The side of the housing 21 is also provided with an opening 212.

[0032] Since the threaded connecting rod 3 can only be extended and retracted by rotation, and the static friction during threaded connection is usually large, it is difficult to rotate directly manually. Therefore, a threaded sleeve 22 is provided in the shell 21 for driving the threaded connecting rod 3 to rotate. The threaded sleeve 22 is provided inside the shell 21 and is not convenient to rotate. In order to increase the installation efficiency, a first gear 23 is provided and the rotation of the threaded sleeve 22 is controlled by driving the rotation through gear meshing. When in use, the external device can be inserted into the shell 21 from the opening 212, so that the first gear 23 is engaged, and then the first gear 23 is driven to rotate by a motor or manual method.

[0033] Furthermore, the tower body positioning assembly 2 further includes a transmission shaft 24 and a second gear 25, the transmission shaft 24 is rotatably connected to the housing 21, the second gear 25 is fixedly connected to the transmission shaft 24, and the second gear 25 is meshed with the first gear 23 and partially extends out of the opening 212;

[0034] Since the opening 212 is usually small and the interior of the shell 21 is not visible, it is difficult to install the components of the motor and other devices when they are deeply inside the shell 21 and mesh with the first gear 23. Therefore, in order to stably drive the threaded sleeve 22 to rotate, a transmission shaft 24 and a second gear 25 are set as the medium for transmission rotation. Part of the second gear 25 extends out of the opening 212, so that the components of the motor and other devices can be directly meshed with the second gear 25 on the outside, which facilitates the overall installation and disassembly and improves the overall installation efficiency.

[0035] Furthermore, the housing 21 is provided with a guide rail 213 for guiding the transmission shaft 24 to slide;

[0036] When the transmission shaft 24 is located at the position of the guide rail 213 closest to the first gear 23, the first gear 23 is meshed with the second gear 25;

[0037] When the transmission shaft 24 is located at the position of the guide rail 213 farthest from the first gear 23, the first gear 23 and the second gear 25 are not meshed;

[0038] Since the second gear 25 is partially exposed outside the shell 21 through the opening 212, the second gear 25 may rotate due to accidental touch or impact, and the shell 21 loses its protective effect. Therefore, a transmission shaft 24 is provided to be movable along the guide rail 213 to control whether the second gear 25 is engaged with the first gear 23.

[0039] Furthermore, the transmission shaft 24 is also rotatably connected to a sliding member 26, the sliding member 26 is disposed outside the housing 21, and the sliding member 26 is fixedly connected to a handle 261;

[0040] The housing 21 is further provided with a first positioning hole and a second positioning hole 214. The first positioning hole is provided at a position of the guide rail 213 closest to the first gear 23, and the second positioning hole 214 is provided at a position of the guide rail 213 farthest from the first gear 23. The sliding member 26 is detachably connected with a positioning bolt 262 for connecting the first positioning hole or the second positioning hole 214.

[0041] In order to facilitate the movement of the transmission shaft 24, a sliding member 26 and a handle 261 are provided, so that the user can quickly move the transmission shaft 24 through the handle 261. The transmission shaft 24 needs to be fixed in position at the position of the guide rail 213 farthest from the first gear 23 and the position of the guide rail 213 closest to the first gear 23. Therefore, a first positioning hole and a second positioning hole 214 are provided, and the transmission shaft 24 is fixed by inserting the positioning bolt 262 on the sliding member 26 into the first positioning hole or the second positioning hole 214.

[0042] Furthermore, the thread on the threaded connecting rod 3 is an internal thread;

[0043] Since the threaded connecting rod 3 is the force-bearing body of the entire tower crane wall-attached node structure, it will be subjected to force in all directions. If a raised external thread structure is adopted, the force-bearing body will actually be converted into the connection between the external thread and the threaded connecting rod 3. Therefore, an internal thread is arranged on the threaded connecting rod 3, so that the threaded connecting rod 3 directly serves as the force-bearing body, thereby dispersing the force. The force on the thread is mainly in the installation direction, and the threaded sleeve 22, the threaded hole 421, the threaded through hole 211 and the threaded ring 44 adopt a raised external thread structure. The threaded sleeve 22 and the threaded ring 44 themselves are always in a fixed position relative to the threaded connecting rod 3. Therefore, there is no need to consider the thread strength too much. The threads in the threaded hole 421 and the threaded through hole 211 directly bear the force in the installation direction. If the threads in the threaded hole 421 and the threaded through hole 211 are damaged, the threaded sleeve 22 can also be used as an insurance through the interference between the shell 21 and the elastic connector 43 and the second connecting plate 42, so as to fix the position of the threaded connecting rod 3, thereby reducing the construction risk.

[0044] Furthermore, an elastic round head 31 is fixedly connected to the side of the threaded connecting rod 3 facing the first connecting plate 41, and a resisting plate 32 is fixedly connected to the side of the threaded connecting rod 3 away from the first connecting plate 41;

[0045] Since the threaded connecting rod 3 will continuously rub against the inner wall of the guide hole when the guide hole plays a guiding role, in order to reduce wear, an elastic round head 31 is used as a contact medium, and the resistance plate 32 will resist the shell 21 after the threaded connecting rod 3 extends to the limit, thereby preventing the threaded connecting rod 3 from excessive rotation and detaching from the shell 21.

[0046] Furthermore, the embedded positioning assembly 4 further includes a rotating connection member 45 and an extension connection member 46, the rotating connection member 45 is rotatably connected to the extension connection member 46, and one end of the extension connection member 46 away from the rotating connection member 45 is fixedly connected to the second connection plate 42;

[0047] The extended connector 46 is used to move the second connecting plate 42 away from the rotating connector 45, so that enough space can be left for the elastic connector 43 to function, and multiple extended connectors 46 can be provided, while the rotating connector 45 has a certain degree of rotation, which can provide a certain buffer when the tower crane is blown and offset by the wind, thereby avoiding the rigidity of the tower crane from breaking. In addition, the rotation of the rotating connector 45 can also be used to fine-tune the installation position, and this operation does not require the presence of workers on the side and can be completed through items such as resistance rods, thereby achieving the purpose of connecting the tower crane wall rod with the wall connection assembly without the need for workers to operate at the wall connection assembly.

[0048] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. The tower crane wall-attached node structure is characterized by: The tower body positioning assembly comprises a segmented tower, a tower body positioning assembly, a threaded connecting rod and an embedded positioning assembly, wherein the tower body positioning assembly is installed inside the segmented tower, the threaded connecting rod is connected to the tower body positioning assembly and the tower body positioning assembly is used to drive the threaded connecting rod to rotate, the embedded positioning assembly comprises a first connecting plate, a second connecting plate, an elastic connecting piece and a threaded ring, the first connecting plate is fixedly connected to the second connecting plate, a conical guide hole is provided on the first connecting plate, a threaded hole corresponding to the guide hole is provided on the second connecting plate, the elastic connecting piece is fixedly connected to the side of the second connecting plate away from the first connecting plate, and the threaded ring is fixedly connected to the side of the elastic connecting piece away from the second connecting plate.

2. The tower crane wall-attached node structure according to claim 1 is characterized in that: The tower body positioning components are provided in plurality and are staggeredly arranged on both sides of the section tower.

3. The tower crane wall-attached node structure according to claim 1, characterized in that: The tower body positioning assembly includes a shell, a threaded sleeve and a first gear. The shell is also provided with a threaded through hole for a threaded connecting rod to penetrate into the shell. The threaded sleeve is arranged in the shell and corresponds to the threaded through hole. The threaded sleeve is fixedly connected to the first gear. An opening is also provided on the side of the shell.

4. The tower crane wall-attached node structure according to claim 3 is characterized in that: The tower body positioning assembly also includes a transmission shaft and a second gear, the transmission shaft is rotatably connected to the shell, the second gear is fixedly connected to the transmission shaft, and the second gear is meshed with the first gear and partially extends out of the opening.

5. The tower crane wall-attached node structure according to claim 4, characterized in that: The housing is also provided with a guide rail for guiding the transmission shaft to slide; When the transmission shaft is located at the position of the guide rail closest to the first gear, the first gear is meshed with the second gear; When the transmission shaft is located at a position where the guide rail is farthest from the first gear, the first gear is not meshed with the second gear.

6. The tower crane wall-attached node structure according to claim 5, characterized in that: The transmission shaft is also rotatably connected to a sliding member, the sliding member is arranged outside the shell, and the sliding member is fixedly connected to a handle.

7. The tower crane wall-attached node structure according to claim 6, characterized in that: The shell is also provided with a first positioning hole and a second positioning hole. The first positioning hole is arranged at the position of the guide rail closest to the first gear, and the second positioning hole is arranged at the position of the guide rail farthest from the first gear. The sliding member is detachably connected with a positioning bolt for connecting the first positioning hole or the second positioning hole.

8. The tower crane wall-attached node structure according to claim 1, characterized in that: The thread on the threaded connecting rod is an internal thread.

9. The tower crane wall-attached node structure according to claim 1, characterized in that: The threaded connecting rod is fixedly connected with an elastic round head on one side facing the first connecting plate, and the threaded connecting rod is fixedly connected with a contact plate on one side away from the first connecting plate.

10. The tower crane wall-attached node structure according to claim 9, characterized in that: The embedded positioning assembly also includes a rotating connection piece and an extension connection piece. The rotating connection piece is rotatably connected to the extension connection piece. One end of the extension connection piece away from the rotating connection piece is fixedly connected to the second connection plate.

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