Tower crane connecting node structure of steel structure building

Abstract

According to the technical scheme, the tower crane connecting node structure of the steel structure building is characterized by comprising a tower section, a tower top, a top inserting-connecting assembly and a connecting assembly, the tower top is connected with the top inserting-connecting assembly, the exterior of the tower section is connected with the connecting assembly, and the connecting assembly comprises a first connecting column and a first inserting-connecting piece; the first connecting column is fixedly connected to the edge of the tower section, a through groove used for containing the first inserting piece is formed in the first connecting column, the first inserting piece is in sliding connection with the inner wall of the through groove, and the first inserting piece is connected with a spring connected with the first connecting column. According to the invention, automatic installation of the connecting structure between the tower sections is realized by arranging the first connecting columns and the slidable first plug connectors, and the positions of the first plug connectors are maintained by adopting the springs, so that reinforced connection between the two tower sections can be automatically realized after the tower sections are positioned and installed, and the purpose of facilitating installation and disassembly of the tower sections is achieved.

Description

Technical Field

[0001] The invention relates to a connection node structure, and more particularly to a tower crane connection node structure of a steel structure building. Background Art

[0002] The tower crane connection node is a structure used to connect the upper and lower tower sections in the standard section of the tower crane (tower section). The tower section usually uses four seamless steel pipes as the main limbs, which are matched with multiple triangular steel frames by resistance welding. An additional connection node structure is also fixed on the outside of the four seamless steel pipes. On the one hand, it is easy to locate for the installation of the tower section. On the other hand, it is strengthened by high-strength bolts and other means to ensure that the connection is firm and reliable. The connection node structure in the prior art usually uses high-strength bolts and connecting plates to further fix the two tower sections relatively. However, it is found in actual installation that the installation and disassembly of this connection node structure requires the staff to leave the external operating platform and enter the middle of the tower section to complete the installation and disassembly of the bolts, which not only increases the safety hazards but is also extremely inconvenient. Therefore, a tower crane connection node structure for steel structure buildings is needed. The device can automatically realize the strengthened connection between the two tower sections after the tower section is positioned and installed, thereby facilitating the installation and disassembly of the tower section.

[0003] In view of the above reasons, how to automatically achieve a reinforced connection between two tower sections after the tower sections are positioned and installed is exactly the problem considered in this application. Summary of the invention

[0004] In view of the deficiencies in the prior art, a tower crane connection node structure for a steel structure building is provided, which can automatically achieve a reinforced connection between two tower sections after the tower sections are positioned and installed, thereby facilitating the installation and disassembly of the tower sections.

[0005] To achieve the above-mentioned purpose, the following technical scheme is provided: a tower crane connection node structure of a steel structure building, comprising a tower section, a tower top, a top plug-in assembly and a connection assembly, the tower top is connected to the top plug-in assembly, the outside of the tower section is connected to the connection assembly, the connection assembly comprises an "L"-shaped first connecting column and an "L"-shaped first plug-in component, the first connecting column is fixedly connected to the edge of the tower section, a through groove for accommodating the first plug-in component is provided inside the first connecting column, the first plug-in component is slidably connected to the inner wall of the through groove, the first plug-in component is connected to a spring connected to the first connecting column, the top plug-in assembly is connected to a second "L"-shaped connecting column and an "L"-shaped second plug-in component, the second connecting column is fixedly connected to the edge of the tower top, and the second plug-in component is fixedly connected to the bottom of the second connecting column.

[0006] In summary, the above technical solution has the following beneficial effects: when the tower body of the tower crane is installed, the tower body base will be first installed on the load-bearing plate and fixed with bolts, and then the pre-assembled tower sections will be lifted by auxiliary equipment such as a crane, and the lowest tower section will be installed on the installed base, and the remaining tower sections will be installed on the last installed tower section, until the predetermined height is reached and the auxiliary equipment such as a crane can no longer be used. At this time, the tower top and the climbing frame need to be installed, and the climbing frame is mounted on the installed tower body, and the pre-assembled tower sections are lifted by the climbing frame and the tower top, so as to repeat the installation;

[0007] In the installation process of the prior art, workers need to manually install bolts and other connecting parts at the connection nodes of the tower sections to strengthen the connection strength between the tower sections. Since the tower body itself can maintain stability in the direction perpendicular to the ground by its own weight, the main function of these connecting parts is to maintain the balance in the direction of horizontal shear force to avoid disconnection between the tower sections. From this perspective, any structure that can prevent the tendency of movement between the tower sections can be used.

[0008] The present invention adopts an "L"-shaped first connecting column and an "L"-shaped first plug-in as a connecting medium. The "L" plug-in is usually designed with a structure that is easy to plug in and out, which can simplify the installation process and save time and labor costs. In the tower crane installation process, it can only be plugged in and out in the direction perpendicular to the ground. It is usually difficult to plug in and out due to the weight of the tower crane. Therefore, it is easy to disassemble and replace, which is convenient for equipment maintenance and upgrading. In contrast, bolt connections require holes to be drilled in the plate and the holes to be aligned during assembly, which increases the assembly workload. Although it also has a certain degree of detachability, the disassembly process is relatively complicated and may require the use of specific tools. After disassembly, the plate may be damaged to a certain extent. When working on the tower crane, the staff also need to leave the operating platform and go to the center of the tower crane to work, which increases safety hazards and reduces construction efficiency. Therefore, it is very suitable to use the "L"-shaped plug-in structure in the connection node of the tower crane;

[0009] The first connector is usually accommodated in the through slot and is pulled by a spring to prevent free separation. The connection and fixation is completed only when the first connector of the upper tower section moves down and is inserted into the first connecting column of this tower section. The movement of the first connector is driven by the second connector on the tower top through the friction, and the second connector will also be inserted into the first connecting column when it is in friction, so as to achieve the fixation of the tower top. A receiving groove for accommodating the first connector needs to be reserved on the base seat, so that the first connector can be smoothly inserted. From the overall point of view, such plug-in does not require direct manual operation by the staff. After the tower section is positioned and installed, it can automatically achieve the reinforced connection between the two tower sections, thereby facilitating the installation and disassembly of the tower section.

[0010] During the installation process, the tower section at the bottom can be fixed first by relying on the fixing function of the tower section itself because it is close to the ground, and the fixing function of the first plug-in piece is realized when the tower top is installed. In addition, since there is friction between the first plug-in piece and the inner wall of the through groove, when the tower top is installed because the climbing sleeve frame leaves, the first plug-in piece can still play a fixing role, thereby avoiding the tower section from detaching.

[0011] In addition, there is a structure similar to the first plug-in connector in the prior art, but since the first plug-in connector itself is easily damaged, such a tower section needs to be placed sideways during transportation and storage, which results in an additional step of adjusting the upright position during construction, so the tower section needs longer time to be installed. In the present invention, a spring is used to pull the first plug-in connector so that the first plug-in connector is stored in the first connecting column, so that the tower section can be directly transported and stored in an upright state, thereby facilitating the installation and disassembly of the tower section.

[0012] The present invention realizes automatic installation of the connection structure between tower sections by setting a first connecting column and a slidable first connector, and uses a spring to maintain the position of the first connector, so that a reinforced connection between the two tower sections can be automatically achieved after the tower sections are positioned and installed, thereby facilitating the installation and disassembly of the tower sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the tower section;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the top of the tower;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the tower top and bottom;

[0016] Figure 4 is a cross-sectional view at the first support rod;

[0017] Figure 5 is a cross-sectional view of the second support rod when the first connector moves to the limit;

[0018] Figure 6 It is a cross-sectional view of the second support rod when the first connector has not moved.

[0019] Reference numerals: 1, tower section; 2, tower top; 3, top plug-in assembly; 4, connection assembly;

[0020] 11. Curved track;

[0021] 31. second connecting column; 32. second plug-in connector;

[0022] 41. first connecting column; 42. first plug-in connector; 43. connecting rod;

[0023] 411, through slot; 412, first through hole; 413, support block; 414, second through hole; 415, buffer slot;

[0024] 421, spring; 422, first support rod; 423, third through hole;

[0025] 431. Second support rod; 432. Roller. DETAILED DESCRIPTION

[0026] 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.

[0027] Reference Figure 1-6 As shown, the tower crane connection node structure of the steel structure building includes a tower section 1, a tower top 2, a top plug-in assembly 3 and a connection assembly 4, the tower top 2 is connected to the top plug-in assembly 3, the outside of the tower section 1 is connected to the connection assembly 4, the connection assembly 4 includes an "L"-shaped first connection column 41 and an "L"-shaped first plug-in component 42, the first connection column 41 is fixedly connected to the edge of the tower section 1, a through groove 411 for accommodating the first plug-in component 42 is provided inside the first connection column 41, the first plug-in component 42 is slidably connected to the inner wall of the through groove 411, the first plug-in component 42 is connected to a spring 421 connected to the first connection column 41, the top plug-in assembly 3 is connected to include an "L"-shaped second connection column 31 and an "L"-shaped second plug-in component 32, the second connection column 31 is fixedly connected to the edge of the tower top 2, and the second plug-in component 32 is fixedly connected to the bottom of the second connection column 31;

[0028] When installing the tower body of the tower crane, the tower body base will be installed on the load-bearing plate first and fixed with bolts. Then, the pre-assembled tower section 1 will be lifted by auxiliary equipment such as a crane. The lowest tower section 1 will be installed on the installed base, and the remaining tower sections 1 will be installed on the previously installed tower section 1. After reaching the predetermined height, the crane and other auxiliary equipment can no longer be used. At this time, the tower top 2 and the climbing frame need to be installed. The climbing frame is put on the installed tower body, and the pre-assembled tower section 1 is lifted by the climbing frame and the tower top 2, so as to repeat the installation.

[0029] In the installation process of the prior art, workers need to manually install bolts and other connecting parts at the connection nodes of the tower sections 1 to strengthen the connection strength between the tower sections 1. Since the tower body itself can maintain stability in the direction perpendicular to the ground by its own weight, the main function of these connecting parts is to maintain the balance in the direction of horizontal shear force to avoid disconnection between the tower sections 1. From this perspective, any structure that can prevent the tower sections 1 from moving in a directional manner can be used.

[0030] The present invention adopts an "L"-shaped first connecting column 41 and an "L"-shaped first plug-in component 42 as the connection medium. The "L" plug-in is usually designed with a structure that is easy to plug in and out, which can simplify the installation process and save time and labor costs. In the tower crane installation process, it can only be plugged in and out in the direction perpendicular to the ground. It is usually difficult to plug in and out due to the weight of the tower crane. Therefore, it is easy to disassemble and replace, which is convenient for equipment maintenance and upgrading. In contrast, bolt connections require holes to be drilled in the plate and the holes to be aligned during assembly, which increases the assembly workload. Although it also has a certain degree of detachability, the disassembly process is relatively complicated and may require the use of specific tools. After disassembly, the plate may be damaged to a certain extent. When working on the tower crane, the staff also need to leave the operating platform and go to the center of the tower crane to work, which increases safety hazards and reduces construction efficiency. Therefore, the "L"-shaped plug-in structure is very suitable for use in the connection nodes of the tower crane.

[0031] The first connector 42 is usually accommodated in the through slot 411 and is pulled by the spring 421 to prevent free separation. The connection and fixation are completed only when the first connector 42 of the upper tower section 1 moves down and is inserted into the first connecting column 41 of the tower section 1 of this layer. The movement of the first connector 42 is driven by the second connector 32 on the tower top 2 through the friction, and the second connector 32 will also be inserted into the first connecting column 41 when it is in friction, so as to achieve the fixation of the tower top 2. A accommodating groove for accommodating the first connector 42 needs to be reserved on the base seat, so that the first connector 42 can be smoothly inserted. From the overall point of view, such plug-in does not require direct manual operation by the staff. After the tower section 1 is positioned and installed, it can automatically achieve the reinforced connection between the two tower sections 1, thereby facilitating the installation and disassembly of the tower section 1.

[0032] During the installation process, the bottom tower section 1 can be fixed first by relying on the fixing function of the tower section 1 itself because it is close to the ground, and the fixing function of the first plug-in connector 42 is realized when the tower top 2 is installed. In addition, since there is friction between the first plug-in connector 42 and the inner wall of the through groove 411, when the tower top 2 is installed because the climbing sleeve is removed, the first plug-in connector 42 can still play a fixing role, thereby preventing the tower section 1 from being separated.

[0033] In addition, there is a structure similar to the first connector 42 in the prior art, but since the first connector 42 itself is easily damaged, the tower section 1 needs to be placed sideways during transportation and storage, which results in an additional step of adjusting the upright position during construction. Therefore, the tower section 1 takes longer time to install. In the present invention, a spring 421 is used to pull the first connector 42 so that the first connector 42 is stored in the first connecting column 41, so that the tower section 1 can be directly transported and stored in an upright state, thereby facilitating the installation and disassembly of the tower section 1.

[0034] The present invention realizes automatic installation of the connection structure between tower sections 1 by setting a first connecting column 41 and a slidable first connector 42, and adopts a spring 421 to maintain the position of the first connector 42, so that after the tower section 1 is positioned and installed, a reinforced connection between the two tower sections 1 can be automatically realized, thereby facilitating the installation and disassembly of the tower section 1.

[0035] Furthermore, the length of the first connecting column 41 is the same as the length of the edge of the tower section 1, and the length of the first connector 42 is the same as the length of the first connecting column 41;

[0036] The top of the first connecting column 41 is lower than the top of the tower section 1, the bottom of the first connecting column 41 is lower than the bottom of the tower section 1, and the bottom of the second connecting column 31 is lower than the bottom of the tower top 2;

[0037] By setting the length and position of the first connecting column 41, multiple first connecting columns 41 can be matched with the tower section 1 on the same layer to form a plug-in structure. This structure can be preliminarily fixed in position when the first plug-in component 42 is not in effect, and the plug-in is also performed in the installation direction, which can effectively increase the installation efficiency and make more full use of the internal space to achieve higher integration and smaller size. The position setting of the second connecting column 31 is similar.

[0038] The length and position of the first connector 42 are set, on the one hand, to ensure that the first connector 42 can be completely accommodated in the first connecting column 41 during transportation and storage, and on the other hand, to ensure that the first connector 42 of the upper tower section 1 can contact the first connector 42 of the tower section 1 of this layer, thereby smoothly driving the movement of the first connector 42 in the entire tower body.

[0039] Furthermore, the first connecting column 41 is provided with a first through hole 412 communicating with the through groove 411, the first plug-in component 42 is fixedly connected with a first support rod 422, the first support rod 422 is slidably connected with the first through hole 412, and a support block 413 provided below the first through hole 412 is also fixedly connected in the first connecting column 41, and both ends of the spring 421 are fixedly connected with the support block 413 and the support rod respectively;

[0040] The first through hole 412 allows the first support rod 422 fixedly connected to the first connector 42 to pass through the first connecting column 41, so that the spring 421 is arranged on the outside of the first connecting column 41. This can ensure that the first connector 42 can slide smoothly in the first connecting column 41 on the one hand, and on the other hand, the first support rod 422 can serve as a limit safety component to prevent the first connector 42 from detaching from the first connecting column 41.

[0041] Further, a curved track 11 is provided on the side of the tower section 1, a first support rod 422 is fixedly connected to a connecting rod 43, the connecting rod 43 is rotatably connected to a second support rod 431, the first connecting column 41 is further provided with a second through hole 414 communicating with the through groove 411, the second support rod 431 is rotatably connected to a roller 432 slidably connected to the curved track 11, and the first connector 42 is provided with a third through hole 423;

[0042] When the first plug-in component 42 does not move, the end of the second support rod 431 away from the connecting rod 43 is located in the second through hole 414;

[0043] When the first plug-in component 42 moves to the limit, the second support rod 431 abuts against the inner wall of the third through hole 423;

[0044] The cross-sectional shape of the second through hole 414 is the same as the cross-sectional shape of the third through hole 423;

[0045] Since the connection position between the connecting rod 43 and the second support rod 431 is fixed, and the distance between the connection position between the roller 432 and the connecting rod 43 and the connection position between the connecting rod 43 and the second support rod 431 remains unchanged, the second support rod 431 can rotate along the track when the connecting rod 43 moves. When the first connector 42 does not move, the end of the second support rod 431 away from the connecting rod 43 is located in the second through hole 414. In this way, the second support rod 431 will not produce a conflicting effect, which facilitates the installation of the tower section 1. After the tower section 1 is installed, it is necessary to move the first connector 42 for strengthening the connection. At this time, the second support rod 43 1 starts to rotate, and the rotation will pass through the second through hole 414 and the third through hole 423, and finally the side surface of the second support rod 431 abuts against the inner wall of the third through hole 423, so that a structure similar to a latch can be formed, which can not only block the further downward movement of the first plug-in component 42, but also prevent the first plug-in component 42 from moving horizontally in the first connecting column 41 due to various reasons. The second through hole 414 and the third through hole 423 have the same cross-sectional shape in order to better control the second support rod 431 to abut against the inner wall of the second through hole 414 and the inner wall of the third through hole 423 at the same time when the first plug-in component 42 moves to the limit;

[0046] In addition, since the second support rod 431 is rotated by the connecting rod 43, and the connecting rod 43 is moved by the first connector 42, the reinforced connection between the two tower sections 1 can be automatically achieved after the tower section 1 is positioned and installed, thereby facilitating the installation and disassembly of the tower section 1.

[0047] Furthermore, the first connecting column 41 is further provided with a buffer groove 415 communicating with the through groove 411 , and the cross-sectional shape of the buffer groove 415 is the same as the cross-sectional shape of the third through hole 423 ;

[0048] When the first connector 42 moves to the limit, the second support rod 431 still abuts against the upper inner wall of the buffer groove 415, and the second support rod 431 does not abut against the side wall of the buffer groove 415 away from the connecting rod 43;

[0049] Since the second support rod 431 itself has a certain thickness and a certain degree of error will occur during the installation of the tower section 1, in order to avoid the situation where the second support rod 431 is unable to rotate due to interference with the side of the connecting rod 43 when rotating, a buffer groove 415 is provided to provide more space, and the second support rod 431 also abuts against the upper inner wall of the buffer groove 415, which can provide a stronger manufacturing effect.

[0050] Furthermore, the top of the through slot 411 is inclined toward the inside of the through slot 411;

[0051] Since the tower crane may rust after long-term operation, making it difficult to move the first connector 42, the top of the through slot 411 is set to be inclined toward the through slot 411, which is not only convenient for dripping rust remover, but also convenient for manually moving the first connector 42.

[0052] 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 connection node structure of the steel structure building is characterized by: The invention comprises a tower section, a tower top, a top plug-in assembly and a connecting assembly, wherein the tower top is connected to the top plug-in assembly, the outside of the tower section is connected to the connecting assembly, the connecting assembly comprises an "L"-shaped first connecting column and an "L"-shaped first plug-in piece, the first connecting column is fixedly connected to the edge of the tower section, a through groove for accommodating the first plug-in piece is provided inside the first connecting column, the first plug-in piece is slidably connected to the inner wall of the through groove, the first plug-in piece is connected to a spring connected to the first connecting column, the top plug-in assembly comprises an "L"-shaped second connecting column and an "L"-shaped second plug-in piece, the second connecting column is fixedly connected to the edge of the tower top, and the second plug-in piece is fixedly connected to the bottom of the second connecting column.

2. The tower crane connection node structure of the steel structure building according to claim 1 is characterized in that: The length of the first connecting column is the same as the length of the edge of the tower section, and the length of the first connector is the same as the length of the first connecting column.

3. The tower crane connection node structure of the steel structure building according to claim 2, characterized in that: The top of the first connecting column is lower than the top of the tower section, the bottom of the first connecting column is lower than the bottom of the tower section, and the bottom of the second connecting column is lower than the bottom of the tower top.

4. The tower crane connection node structure of the steel structure building according to claim 1, characterized in that: The first connecting column is provided with a first through hole connected to the through groove, the first connector is fixedly connected with a first support rod, the first support rod is slidably connected to the first through hole, the first connecting column is also fixedly connected with a support block arranged below the first through hole, and the two ends of the spring are respectively fixedly connected to the support block and the support rod.

5. The tower crane connection node structure of the steel structure building according to claim 4, characterized in that: The side of the tower section is provided with an arc track, the first support rod is fixedly connected to a connecting rod, the connecting rod is rotatably connected to a second support rod, the first connecting column is also provided with a second through hole connected to the through slot, the second support rod is rotatably connected to a roller slidably connected to the arc track, and the first connector is provided with a third through hole; When the first connector does not move, the end of the second support rod away from the connecting rod is located in the second through hole; When the first plug-in connector moves to the limit, the second support rod abuts against the inner wall of the third through hole.

6. The tower crane connection node structure of the steel structure building according to claim 5, characterized in that: The cross-sectional shape of the second through hole is the same as the cross-sectional shape of the third through hole.

7. The tower crane connection node structure of the steel structure building according to claim 6, characterized in that: The first connecting column is further provided with a buffer groove communicating with the through groove, and the cross-sectional shape of the buffer groove is the same as the cross-sectional shape of the third through hole; When the first connector moves to the limit, the second support rod still abuts against the upper inner wall of the buffer groove, and the second support rod does not abut against the side wall of the buffer groove away from the connecting rod.

8. The tower crane connection node structure of a steel structure building according to claim 1, characterized in that: The top of the through slot is inclined toward the inside of the through slot.

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