Attachment connecting device and method for tower crane, and tower crane

Abstract

The application discloses a tower crane attachment connecting device, an attachment connecting method and a tower crane. The tower crane attachment connecting device comprises an attachment support rod, a first connecting structure and a mounting and dismounting platform. The attachment support rod is provided with a length-adjustable section capable of adjusting the length of the support rod. The first connecting structure is arranged on the length-adjustable section. The mounting and dismounting platform comprises a platform body and a connecting stand. The lower end of the connecting stand is arranged on a walking table of the platform body. The upper end of the connecting stand extends out of a protective fence of the platform body and is connected with the first connecting structure. The mounting and dismounting platform is directly arranged on the length-adjustable section of the attachment support rod, so that the convenience of welding is obviously improved, and the installation difficulty and manufacturing cost of the platform are obviously reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of tower cranes, and in particular relates to an attachment connection device for a tower crane, an attachment connection method and a tower crane. Background Art

[0002] Tower cranes, also known as tower cranes, are primarily used to transport materials for construction. They consist of a tower structure built to the height of a building. The freestanding height of a tower crane refers to the height at which the crane can operate independently and stably without relying on the building. When the tower exceeds this height, an attachment frame is required to connect the tower to the building to improve the crane's stability. The attachment brace is a crucial component of the attachment frame, connecting the building to the attachment frame on the tower and transferring the load from the attachment point to the building.

[0003] Due to their long length and high stress, the attachment struts of super-large tower cranes are difficult to control in terms of size. Therefore, they have adjustable length sections, which require welding after being adjusted into position at high altitude. To facilitate construction, a construction platform is required. This platform can be used for both building construction and for installing and welding the attachment frame base and attachment struts. Currently, construction platforms are typically installed on buildings or towers. While the welding point for the attachment struts can be located close to the building when the construction platform is installed, there are still areas that the construction platform cannot reach, making welding the attachment struts very cumbersome. A hoist may be required to hoist welders to the welding point, posing a safety hazard. Furthermore, since welding is required on all sides of the attachment struts, welding the sides and bottom of the struts is even more difficult. When the construction platform is installed on the tower, welding the sides and bottom of the attachment struts requires a large platform on the tower, making installation difficult and costly. Summary of the Invention

[0004] In response to the above-mentioned defects or shortcomings, the present invention provides an attachment connection device, an attachment connection method and a tower crane for a tower crane, aiming to solve the technical problems of inconvenience in welding attachment struts when installing a construction platform on a building or difficulty in installing the platform and high cost of platform production when installing the construction platform on a tower body.

[0005] To achieve the above-mentioned objectives, the first aspect of the present invention provides an attachment connection device for a tower crane, wherein the attachment connection device for a tower crane includes an attachment strut, a first connection structure and an installation and disassembly platform; the attachment strut has a length-adjustable section for adjusting the length of the strut; the first connection structure is arranged on the length-adjustable section; the installation and disassembly platform includes a platform body and a connecting frame, the lower end of the connecting frame is arranged on the walking platform of the platform body, and the upper end of the connecting frame extends out of the protective fence of the platform body and is connected to the first connection structure.

[0006] In one embodiment of the present invention, the first connecting structure includes a first fixed portion and a second fixed portion, and the first fixed portion and the second fixed portion are respectively and one-to-one arranged on the first joint and the second joint of the length-adjustable section, the first end of the first joint can be connected to the main strut section of the attachment strut, and the second joint is adjustable in length at the second end of the first joint, and the first connecting portion and the second connecting portion are spaced apart at the upper end of the connecting frame, the first connecting portion is connected to the first fixed portion, and the second connecting portion allows the second fixed portion to move along the telescopic direction of the second joint.

[0007] In one embodiment of the present invention, the first fixing portion is set as a first ear plate, and the first connecting portion is detachably connected to the first ear plate through a first connecting pin; the second fixing portion is set as a second ear plate, and the second connecting portion is detachably connected to the second ear plate through a second connecting pin, and one of the second ear plate and the second connecting portion is provided with a long strip hole for the second connecting pin to pass through, and the long strip hole is extended along the telescopic direction of the second joint.

[0008] In one embodiment of the present invention, the elongated hole is provided on the second ear plate, and the second connecting portion is provided with a through hole adapted to the axial diameter of the second connecting pin, and second ear plates can be provided on opposite sides of the second connecting portion.

[0009] In one embodiment of the present invention, the first end of the first joint is provided with a flange body connected to the main support rod section, and a welding notch is formed at a corner of the upper end of the first ear plate close to the main support rod section. The welding notch has a first welding surface for fit welding with the downward side of the flange body and a second welding surface for fit welding with the plate surface of the flange body facing away from the main support rod section.

[0010] In one embodiment of the present invention, the length of the elongated hole is greater than or equal to the telescopic length of the second joint on the first joint.

[0011] In one embodiment of the present invention, the attachment connection device for the tower crane also includes a second connection structure, which is arranged on the main support pole segment near the end of the main support pole segment. The first connection structure and the second connection structure can be detachably connected to the upper end of the connecting frame.

[0012] In one embodiment of the present invention, the first connecting structure includes a shoulder pole beam, which spans the adjustable length section and extends at both ends. Both ends of the extended shoulder pole beam are provided with a first mounting portion, and the first mounting portion is connected to the upper end of the connecting frame.

[0013] In an embodiment of the present application, the flat beam is arranged on the upper side of the attached support rod and can be switched and arranged between the length-adjustable section or the main support rod section of the attached support rod. The flat beam is further provided with a second mounting portion. The second mounting portion is used to detachably connect with the attached support rod through the position locking assembly when the switching of the arrangement position of the flat beam is completed, so as to fix the flat beam on the arrangement position.

[0014] In an embodiment of the present application, the first connecting structure has at least two connecting points arranged at intervals. The connecting stand includes support vertical rods, connecting foot pedal rods and inclined support rods. The number of the support vertical rods is at least two. The lower ends of the at least two support vertical rods are arranged on the walking platform. The upper ends of the at least two support vertical rods are arranged outside the protective fence and are connected with the at least two connecting points one by one. The connecting foot pedal rods are connected with two adjacent support vertical rods. The inclined support rods are arranged obliquely and are connected with the support vertical rods and the walking platform one by one at the upper and lower ends.

[0015] In an embodiment of the present application, the walking platform is provided with a kick plate arranged outside and upward around the walking platform.

[0016] In an embodiment of the present application, the walking platform includes a bottom frame and a steel mesh. The bottom frame is formed by butt welding of profile steel members. The steel mesh is arranged on the bottom frame. The bottom frame is provided with a channel steel member at the position connected with the lower end of the connecting stand and includes an angle steel member at the position avoiding the connecting stand.

[0017] To achieve the above object, the second aspect of the present application provides an attaching and connecting method, wherein the attaching and connecting method is applied to the attaching and connecting device for the tower crane as described above and includes the following steps:

[0018] The assembly of the assembling and disassembling platform on the attached support rod is completed to form the attaching and connecting device.

[0019] The attaching and connecting device formed by the assembly is hoisted to a preset installation height.

[0020] The fixed end of the attached support rod is connected with one of the building and the tower body attaching frame. The fixed end of the attached support rod is arranged at one end of the main support rod section away from the length-adjustable section.

[0021] The position of the adjusting end of the attached support rod is adjusted, and the adjusting end is connected with the other of the building and the tower body attaching frame. The adjusting end of the attached support rod is arranged at the second joint.

[0022] The length-adjustable section is welded to fix the first joint and the second joint.

[0023] In an embodiment of the present application, the assembly of the assembling and disassembling platform on the attached support rod is completed to form the attaching and connecting device, which includes the following steps:

[0024] performing a first assembly operation on the attachment strut, wherein the first assembly operation includes connecting the main strut segment to the length-adjustable segment, and releasably connecting the first joint and the second joint of the length-adjustable segment;

[0025] The attachment strut is lifted to the position where the length-adjustable section is docked with the installation platform, and the second assembly operation between the length-adjustable section and the installation platform is completed, wherein the second assembly operation includes detachably connecting the first fixing portion on the first joint to the first connecting portion, and detachably connecting the second fixing portion on the second joint to the second connecting portion.

[0026] To achieve the above object, a third aspect of the present invention provides a tower crane, characterized in that the tower crane comprises the above-mentioned attachment connection device for the tower crane.

[0027] Through the above technical solution, the tower crane attachment connection device provided by the present invention has the following beneficial effects:

[0028] When the tower crane uses the above-mentioned attachment connection device, since it includes an attachment support rod, a first connection structure and an installation and disassembly platform, the first connection structure is arranged on the length-adjustable section of the attachment support rod, and the installation and disassembly platform is additionally provided with a connection stand on the walking platform of the platform body. The upper end of the connection stand extends out of the protective fence of the platform body and can be connected to the first connection structure. By directly arranging the installation and disassembly platform on the length-adjustable section of the attachment support rod, it is convenient for welders to weld the length-adjustable section at high altitudes. Compared with the prior art of installing the construction platform on a building, the convenience of welding will be significantly improved, especially when the installation height of the attachment support rod on the installation and disassembly platform is limited to a position convenient for welding, the welding around the length-adjustable section will be very convenient, and compared with installing the construction platform on the tower body, the installation difficulty and production cost of the platform will be significantly reduced.

[0029] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without inventive work. In the accompanying drawings:

[0031] Figure 1 2 is a schematic structural diagram of a mounting platform installed on a length-adjustable section according to a first embodiment of the present invention;

[0032] Figure 2is a schematic structural diagram of an attachment brace according to a first embodiment of the present invention;

[0033] Figure 3 is a schematic structural diagram of the length-adjustable section according to the first embodiment of the present invention;

[0034] Figure 4 is a schematic structural diagram of a first ear plate according to a first embodiment of the present invention;

[0035] Figure 5 is a schematic structural diagram of a stand connected to a length-adjustable section according to a first embodiment of the present invention;

[0036] Figure 6 is a schematic structural diagram of a mounting platform mounted on an attachment support rod according to a second embodiment of the present invention;

[0037] Figure 7 is a structural schematic diagram of a shoulder pole beam according to a second embodiment of the present invention from one perspective;

[0038] Figure 8 is a structural schematic diagram of a shoulder-pole beam according to a second embodiment of the present invention from another perspective;

[0039] Figure 9 is a schematic structural diagram of the installation and removal platform according to the first embodiment of the present invention;

[0040] Figure 10 is a schematic diagram of lifting the attachment connection device according to the first embodiment of the present invention;

[0041] Figure 11 is a flow chart of an attachment connection method according to a first embodiment of the present invention.

[0042] Description of reference numerals:

[0043] 100 Attachment support rod 110 Length adjustable section

[0044] 111 First connector 112 Second connector

[0045] 113 flange body 120 main support rod section

[0046] 200 First connection structure 210 First fixing portion

[0047] 211 first connecting pin 212 welding notch

[0048] 220 second fixing portion 221 second connecting pin

[0049] 222 long strip hole 230 shoulder pole beam

[0050] 231 first mounting portion 232 second mounting portion

[0051] 300 dismantling platform 310 platform body

[0052] 311 protective fence 312 kick plate

[0053] 313 post mounting seat 314 post clamping plate assembly

[0054] 315 bottom frame 316 expanded metal

[0055] 320 connecting stand 321 supporting vertical rod

[0056] 322 connecting footrest rod 323 diagonal bracing rod

[0057] 400 second connecting structure 410 third ear plate

[0058] 420 fourth ear plate DETAILED DESCRIPTION

[0059] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0060] The tower crane attachment connecting device, the attachment connecting method and the tower crane of the present application will be described below with reference to the accompanying drawings.

[0061] As shown in Figure 1 and Figure 2 , the present application provides a tower crane attachment connecting device, wherein the tower crane attachment connecting device comprises:

[0062] an attachment bracing rod 100 having a length-adjustable section 110 capable of adjusting the length of the bracing rod;

[0063] a first connecting structure 200 arranged on the length-adjustable section 110;

[0064] a dismantling platform 300 comprising a platform body 310 and a connecting stand 320, the lower end of the connecting stand 320 being arranged on the walking deck of the platform body 310, and the upper end of the connecting stand 320 extending out of the protective fence 311 of the platform body 310 and being connected with the first connecting structure 200.

[0065] When the tower crane uses the above-mentioned attachment connection device, since it includes an attachment strut 100, a first connection structure 200 and an installation and disassembly platform 300, the first connection structure 200 is arranged on the length-adjustable section 110 of the attachment strut 100, and the installation and disassembly platform 300 is additionally provided with a connection stand 320 on the walking surface of the platform body 310. The upper end of the connection stand 320 extends out of the protective fence 311 of the platform body 310 and can be connected to the first connection structure 200. By directly arranging the installation and disassembly platform 300 on the length-adjustable section 110 of the attachment strut 100, it is convenient for welders to weld the length-adjustable section 110 at high altitudes. Compared with the prior art method of installing the construction platform on a building, the convenience of welding is significantly improved. In particular, when the installation height of the attachment strut 100 on the installation and disassembly platform 300 is limited to a position convenient for welding, welding around the length-adjustable section 110 is very convenient. In addition, compared with installing the construction platform on the tower body, the installation difficulty and manufacturing cost of the platform are significantly reduced.

[0066] Specifically, the attachment strut 100 includes a main strut section 120 and an adjustable length section 110. The adjustable length section 110 includes a first joint 111 and a second joint 112. One end of the main strut section 120 is connected to the first end of the first joint 111. The other end of the main strut section 120, located away from the first joint 111, serves as the fixed end of the attachment strut 100 for connection to one of the building and the tower attachment frame. The second joint 112 is telescopically disposed at the second end of the first joint 111 and is disposed at the adjustable end of the attachment strut 100 for connection to the other of the building and the tower attachment frame. The number of main strut sections 120 includes, but is not limited to, one. Both adjacent main strut sections 120 and the main strut section 120 and the first joint 111 can be connected by pins or bolts.

[0067] See also Figures 1 to 5In the first embodiment of the present invention, the first connecting structure 200 includes a first fixing portion 210 and a second fixing portion 220. The first fixing portion 210 and the second fixing portion 220 are respectively and correspondingly arranged on the first joint 111 and the second joint 112 of the length-adjustable section 110. The first end of the first joint 111 can be connected to the main strut section 120 of the attachment strut 100. The second joint 112 is adjustable in length at the second end of the first joint 111. The upper end of the connecting frame 320 is provided with a first connecting portion and a second connecting portion at intervals. The first connecting portion is connected to the first fixing portion 210, and the second connecting portion allows the second fixing portion 220 to move along the telescopic direction of the second joint 112. That is, in this embodiment, the first connecting structure 200 can be split into a first fixing portion 210 and a second fixing portion 220. The first fixing portion 210 and the second fixing portion 220 are respectively provided on the first joint 111 and the second joint 112 of the length-adjustable section 110. The first connecting portion of the connecting stand 320 is connected to the first fixing portion 210, so that one end of the installation and removal platform 300 can be fixed to the first joint 111 connected to the main support section 120. The second connecting portion allows the second fixing portion 220 to move telescopically. On the one hand, the other end of the installation and removal platform 300 can be connected to the second joint 112 to ensure the stable installation of the installation and removal platform 300, and on the other hand, the adjustable setting of the second joint 112 can be realized. In addition, the first joint 111 and the second joint 112 are both connected to the connecting stand 320, so that the welding position on the length-adjustable section 110 is within the coverage range of the installation and removal platform 300, improving the convenience of the welding operation. Of course, the present invention is not limited thereto, and the first connection structure 200 may be provided only on the first joint 111 , that is, the installation and removal platform 300 is connected to the first joint 111 through the first connection structure 200 .

[0068] In one embodiment of the present invention, the first fixing portion 210 is configured as a first lug plate, and the first connecting portion is detachably connected to the first lug plate via a first connecting pin 211. Selecting the first fixing portion 210 as a lug plate facilitates detachable connection between the first connecting portion and the first fixing portion 210 by using a pin, thereby improving the convenience of assembly and disassembly. Specifically, the first fixing portion 210 is provided on the lower side of the first joint 111. To ensure the connection strength between the first joint 111 and the connecting stand 320, two first fixing portions 210 may be provided at intervals along the width direction of the first joint 111. Correspondingly, the connecting stand 320 is provided with two first connecting portions. Each first fixing portion 210 has two first lug plates, each of which extends between the two first lug plates of the corresponding first fixing portion 210. The first connecting portion and the two first lug plates are each provided with a first axial hole arranged in a continuous manner. The first connecting pin 211 is provided through all the first axial holes to lock the first connecting portion and the two first lug plates in series. In addition, the diameter of the first pin hole is set to be consistent with the shaft diameter of the first connecting pin shaft 211 or slightly larger than the shaft diameter of the first connecting pin shaft 211.

[0069] At the same time, the second fixing portion 220 is configured as a second ear plate, and the second connecting portion is detachably connected to the second ear plate via a second connecting pin 221. One of the second ear plate and the second connecting portion is provided with an elongated hole 222 for the second connecting pin 221 to pass through, and the elongated hole 222 extends along the telescopic direction of the second joint 112. Choosing to configure the second fixing portion 220 as an ear plate facilitates the detachable connection of the first connecting portion and the first fixing portion 210 by using a pin, thereby improving the convenience of assembly and disassembly. Furthermore, configuring the hole for the second connecting pin 221 to pass through on one of the second ear plate and the second connecting portion as an elongated hole 222 not only enables the movement of the second joint 112 on the second connecting portion, but also simplifies the structure and reduces the manufacturing cost. Specifically, the second fixing portion 220 is provided on the lower side of the second joint 112, and in order to ensure the connection strength between the second joint 112 and the connecting stand 320, two second fixing portions 220 can be provided at intervals along the width direction of the second joint 112. Correspondingly, the connecting stand 320 is provided with two second connecting portions, and each second fixing portion 220 has two second lugs. Each second connecting portion extends between the two second lugs of the corresponding second fixing portion 220. The first connecting pin 211 is provided through the second connecting portion and the two second lugs for serial locking. In addition, the other of the second lug and the second connecting portion is provided with a second pin hole for the second connecting pin 221 to pass through, and the aperture of the second pin hole is set to be consistent with or slightly larger than the axial diameter of the second connecting pin 221. Of course, the present invention is not limited to this. The second fixing portion can also be provided as a sliding structure that can be slidably connected to the second connecting portion.

[0070] In one embodiment of the present invention, the elongated hole 222 is provided on the second ear plate, and the second connecting portion is provided with a through hole adapted to the axial diameter of the second connecting pin 221, and a second ear plate can be provided on both opposite sides of the second connecting portion. The elongated hole 222 is selected to be provided on the second ear plate of the second fixing portion 220 rather than on the second connecting portion, thereby simplifying the structure of the connecting stand 320, and when the second joint 112 moves, the second connecting pin 221 does not need to move with the second joint 112, which can avoid the second connecting pin 221 from bearing the weight while also moving relative to the second connecting portion, reducing the wear of the second connecting pin 221 corresponding to the second connecting portion, thereby achieving the purpose of increasing the service life. Of course, the present invention is not limited to this, and the elongated hole 222 can also be provided on the second connecting portion. Specifically, the elongated hole 222 can be set as a waist-shaped hole.

[0071] See also Figures 3 to 5 In one embodiment of the present invention, the first end of the first joint 111 is provided with a flange body 113 connected to the main support rod section 120, and the second joint 112 can be sleeved on the outside of the second end of the first joint 111 to realize the telescopic setting of the second joint 112 on the first joint 111 and adjust the length of the adjustable length section 110. A welding notch 212 is formed at a corner of the upper end of the first ear plate near the main support rod section 120. The welding notch 212 has a first welding surface for fit welding with the side of the flange body 113 facing downward and a second welding surface for fit welding with the plate surface of the flange body 113 facing away from the main support rod section 120. That is, the first ear plate is connected to the first joint 111 by welding, and to increase the weld length of the first ear plate, a welding notch 212 can be formed at a corner of the first ear plate. The welding notch 212 forms an L-shaped corner welding surface including a first welding surface and a second welding surface. At the same time, to match the L-shaped corner welding surface, the flange body 113 on the first joint 111 is selected to be spliced ​​with the welding notch 212. In addition, the welding notch 212 is provided at a corner of the upper end of the first ear plate near the main support section 120, while the non-welding notch 212 is provided at a corner of the upper end of the first ear plate away from the main support section 120. This is to avoid interference with the connection between the flange body 113 of the first joint 111 and the main support section 120. Specifically, the end of the main support rod section 120 may be provided with a flange body 113, and the flange body 113 at the first end of the first joint 111 fits with the flange body 113 on the main support rod section 120 and is detachably connected by a pin or bolt. The flange body 113 includes but is not limited to a square shape.

[0072] In an embodiment of the present application, the length of the long strip-shaped hole 222 is greater than or equal to the telescopic length of the second joint 112 on the first joint 111, so that the connection of the installation and dismounting platform 300 and the second joint 112 will not affect the length adjustment of the length-adjustable section 110. Preferably, the length of the long strip-shaped hole 222 is greater than the telescopic length of the second joint 112 on the first joint 111.

[0073] Referring to Figure 2 In an embodiment of the present application, the attachment connecting device for the tower crane further comprises a second connecting structure 400 arranged on the main support rod section 120 near the end thereof, specifically, the end of the main support rod section 120 can be used for detachable connection with the first joint 111 or the end of another main support rod section 120, that is, the second connecting structure 400 is arranged near the connection of the main support rod section 120, and the first connecting structure 200 and the second connecting structure 400 can be used for detachable connection with the upper end of the stand 320. That is, through the addition of the second connecting structure 400, the installation and dismounting platform 300 can also be added near the connection of the main support rod section 120, so as to facilitate the inspection, maintenance and dismounting of the connection of the main support rod section 120 in the later period. Specifically, the second connecting structure 400 can comprise a third ear plate 410 and a fourth ear plate 420 arranged in sequence along the length direction of the main support rod section 120, and the third ear plate 410 and the fourth ear plate 420 can be respectively connected in one-to-one correspondence with the first connecting part and the second connecting part of the stand 320 through the pin shafts.

[0074] Referring to Figures 6 to 8 In the second embodiment of the present application, the first connecting structure 200 comprises a crossbeam 230, the crossbeam 230 spans the length-adjustable section 110 and is arranged with both ends protruding, and the both ends of the crossbeam 230 arranged with protruding are provided with first mounting parts 231, and the first mounting parts 231 are connected with the upper end of the stand 320. That is, in the present embodiment, the first connecting structure 200 is not split and is arranged as an integral structure of the crossbeam 230, the crossbeam 230 is arranged to span the length-adjustable section 110 and is arranged with the first mounting parts 231 connected with the upper end of the stand 320 at both ends, so that the two first mounting parts 231 are arranged in the direction intersecting with the length direction of the length-adjustable section 110, preferably in the direction of perpendicular intersection, that is, the crossbeam 230 can only be arranged on the first joint 111 or the second joint 112, so that the influence of the telescopic adjustment of the second joint 112 does not need to be considered, and the design and manufacture will be simpler. Specifically, the first mounting parts 231 can be arranged on the lower side of the crossbeam 230.

[0075] In the second embodiment of the present invention, the shoulder pole beam 230 is placed on the upper side of the attachment strut 100, and can be switched between the length-adjustable section 110 or the main strut section 120 of the attachment strut 100. A second mounting portion 232 is also provided on the shoulder pole beam 230. The second mounting portion 232 is used to be detachably connected to the attachment strut 100 through a position locking assembly when the placement position of the shoulder pole beam 230 is switched, so as to fix the shoulder pole beam 230 in the placement position. That is, the shoulder pole beam 230 is detachably connected to the attachment strut 100, so that when the adjustable length section 110 needs to be welded, the shoulder pole beam 230 can be first placed on the upper side of the adjustable length section 110 and fixed by the position locking assembly. It should be noted that at this point, the attachment strut 100 has already been connected at both ends, and then the installation and removal platform 300 can be installed on the shoulder pole beam 230. When the connection of the main strut section 120 needs to be inspected, maintained, or disassembled, the shoulder pole beam 230 can be first placed on the upper side of the main strut section 120 and fixed by the position locking assembly, and then the installation and removal platform 300 can be installed on the shoulder pole beam 230. Specifically, the position locking assembly can be a lock with a wire rope to prevent the shoulder pole beam 230 from swinging or even tipping over when placed on the upper side of the attachment strut 100.

[0076] like Figure 1 、 Figure 5 and Figure 9 As shown, in the first and second embodiments of the present invention, the first connecting structure 200 has at least two connection points arranged at intervals. Specifically, in the first embodiment, the at least two connection points can be set to include a first fixing portion 210 and a second fixing portion 220. In the second embodiment, the at least two connection points can be set to two first mounting portions 231 located at both ends of the shoulder beam 230. At the same time, the connecting frame 320 includes a supporting vertical rod 321, a connecting foot pedal rod 322 and a diagonal support rod 323. The number of the supporting vertical rods 321 is set to at least two, and the lower ends of the at least two supporting vertical rods 321 are set on the walking surface. On the top, the upper ends of at least two supporting vertical rods 321 extend out of the protective fence 311 and are connected to at least two connection points one by one. The connecting foot pedal rod 322 connects the two adjacent supporting vertical rods 321. The addition of the connecting foot pedal rod 322, on the one hand, plays a role in strengthening the supporting vertical rod 321, and on the other hand, it is convenient for welders to step on it during welding operations. The diagonal support rod 323 is set at an angle and the upper and lower ends are connected to the supporting vertical rod 321 and the walking platform one by one. The addition of the diagonal support rod 323 can further strengthen the supporting vertical rod 321 and prevent the platform from tipping over, deformation, etc. during construction.

[0077] Specifically, in the first embodiment, when the number of the first fixing portions 210 and the second fixing portions 220 are both set to two, the number of the support vertical rods 321 in the connecting frame 320 can be set to four, wherein the upper ends of the two support vertical rods 321 are set as the first connecting portion and are arranged corresponding to the two first fixing portions 210, and the upper ends of the other two support vertical rods 321 are set as the second connecting portion and are arranged corresponding to the two second fixing portions 220. The four support vertical rods 321 are arranged in sequence in a square shape, and a connecting footrest rod 322 is connected between each of the two support vertical rods 321 located on any side. There are two diagonal braces 323 provided on the support vertical rod 321, and the two diagonal braces 323 are respectively provided on the two side surfaces of the support vertical rod 321 where the connecting footrest rod 322 is not provided. More specifically, the support vertical rod 321 can be a channel steel member.

[0078] See also Figure 1 and Figure 9 In one embodiment of the present invention, upwardly extending kickboards 312 are provided on all four sides of the walking platform. The addition of the kickboards 312 can prevent people from stepping on empty space. Specifically, railing mounting seats 313 are provided on the outside of the kickboards 312 to accommodate the railings in the protective fence 311. The protective fence 311 includes four railings, which are arranged around the platform body 310. Two adjacent railings are connected by a railing clamp assembly 314, forming a single unit and improving protection. A safety rope can also be connected to the protective fence 311.

[0079] In one embodiment of the present invention, the walking platform includes a bottom frame 315 and a steel plate mesh 316. The bottom frame 315 is formed by lap welding of steel sections. Specifically, the steel sections include square steel, round steel, flat steel, angle steel, I-beam and channel steel, etc. The steel plate mesh 316 is laid on the bottom frame 315 for operators to walk on and place tools, and the bottom frame 315 is set as a channel steel member at the position connected to the lower end of the connecting frame 320. The channel steel member has good mechanical properties, so as to strengthen the support of the connecting frame 320, and the angle steel member is included at the position avoiding the connecting frame 320, which can reduce the production cost and reduce the weight.

[0080] Specifically, the size of the platform body 310 and the position of the connecting frame 320 on the platform body 310 can be set according to the space required for construction.

[0081] Therefore, the tower crane attachment connection device provided by the present invention has the following advantages:

[0082] 1. It can provide operators with an aerial operating platform without being restricted by the surrounding environment.

[0083] Traditional installation and disassembly platforms rely on buildings and tower cranes for construction, often constrained by the building and tower structures and limited in reach. This solution, however, allows installation on attached struts, unrestricted by any structure, not even the strut structure itself. This platform greatly facilitates on-site operators in installing and disassembling the attached struts and performing routine maintenance.

[0084] 2. Easy to install, the installation and removal process is time-saving, labor-saving and safe.

[0085] Traditional platform installation often requires multiple installers working at height, each wearing a safety harness. This is time-consuming, labor-intensive, and unsafe. This system uses a pin connection, making installation and removal very convenient. Only one person is required to install and remove the platform from the ground, saving time, effort, and safety.

[0086] 3. Small platform size and low cost.

[0087] Traditional installation platforms require attachment to a building or tower crane, requiring consideration not only for operator access but also for connection to the structure or crane, resulting in additional cost and space. This solution only requires the operator's space, and places minimal structural requirements on the attachment braces, eliminating any waste of space or cost.

[0088] 4. High utilization rate.

[0089] The installation and disassembly platform adopts a prefabricated structure, and after one project is completed, it can still be used for the construction of other projects.

[0090] In addition, if Figure 11 As shown, the present invention further provides an attachment connection method, wherein the attachment connection method is applied to the attachment connection device for a tower crane according to the first embodiment, and comprises:

[0091] Step S100 , completing the assembly of the mounting platform 300 on the attachment support rod 100 to form an attachment connection device.

[0092] Specifically, the installation platform 300 can be placed on the ground, and the attachment strut 100 can be assembled on the installation platform 300 on the ground. After the attachment strut 100 and the installation platform 300 are assembled, an attachment connection device can be formed, and the assembly includes the connection between two adjacent main strut sections 120, the connection between the first joint 111 of the length-adjustable section 110 and the main strut section 120, and the connection between the length-adjustable section 110 and the installation platform 300.

[0093] Step S200: hoisting the assembled attachment connection device to a preset installation height.

[0094] Specifically, if Figure 10As shown, both ends of the attachment strut 100 may be provided with lifting ears, and the entire attachment connection device can be easily lifted to a preset installation height through the lifting ears.

[0095] Step S300 , connecting the fixed end of the attachment strut 100 to one of the building and the tower attachment frame, wherein the fixed end of the attachment strut 100 is set to be the end of the main strut section 120 away from the length-adjustable section 110 .

[0096] It can be understood that after the attachment strut 100 is assembled, the two ends are divided into a fixed end and an adjustable end. The fixed end can be specifically the end of the main strut section 120 away from the length-adjustable section 110, and the adjustable end is specifically the second joint 112. When installing the attachment strut 100, the fixed end needs to be connected first so that the adjustable end can be adjusted later. The fixed end can be connected to the building or to the tower attachment frame.

[0097] Step S400 , adjusting the position of the adjustment end of the attachment strut 100 and connecting the adjustment end to the other of the building and the tower attachment frame, wherein the adjustment end of the attachment strut 100 is configured as the second joint 112 .

[0098] Step S500 : welding the length-adjustable section 110 to fixedly connect the first joint 111 and the second joint 112 .

[0099] When the tower crane uses the above-mentioned attachment connection method, since the welding personnel can stand on the installation and disassembly platform 300 to weld the length-adjustable section 110, the convenience of welding is significantly improved. At the same time, the attachment strut 100 and the installation and disassembly platform 300 in the attachment connection device can be assembled on the ground without the need to assemble in the air, which significantly reduces the difficulty of assembly and improves the assembly efficiency.

[0100] In one embodiment of the present invention, step S100 of completing the assembly of the mounting platform 300 on the attachment support rod 100 to form the attachment connection device includes:

[0101] In step S110 , a first assembly operation is performed on the attachment strut 100 , wherein the first assembly operation includes connecting the main strut segment 120 with the length-adjustable segment 110 , and detachably connecting the first joint 111 and the second joint 112 of the length-adjustable segment 110 .

[0102] In step S120, the attachment support rod 100 is hoisted to a position where the length-adjustable section 110 is docked with the installation and dismounting platform 300, and a second assembly operation between the length-adjustable section 110 and the installation and dismounting platform 300 is completed, wherein the second assembly operation comprises detachable connection of the first fixed connection part 210 on the first joint 111 with the first connecting part, and detachable connection of the second fixed connection part 220 on the second joint 112 with the second connecting part.

[0103] Further, the first assembly operation of the entire attachment support rod 100 can be completed on the ground, and the first assembly operation comprises detachable connection between the first joint 111 and the second joint 112, so that the stability of hoisting the second joint 112 can be ensured when the entire attachment support rod 100 is hoisted to be docked with the installation and dismounting platform 300. Further, the first joint 111 and the second joint 112 are each provided with an ear, a wire rope can be sequentially threaded through the ears on the first joint 111 and the second joint 112, and then the two ends of the wire rope are hinged, and of course the wire rope can be detached when the second joint 112 is adjusted.

[0104] In addition, the application further provides an attachment connection method, wherein the attachment connection method is applied to the tower crane attachment connection device according to the second embodiment, and comprises:

[0105] The fixed end of the attachment support rod 100 is connected with one of the building and the tower body attachment frame, wherein the fixed end of the attachment support rod 100 is arranged as one end of the main support rod section 120 away from the length-adjustable section 110;

[0106] The adjustment end of the attachment support rod 100 is adjusted in position and connected with the other of the building and the tower body attachment frame, wherein the adjustment end of the attachment support rod 100 is arranged as the second joint 112 in the length-adjustable section 110;

[0107] The pole beam 230 is transversely arranged on the upper side of the length-adjustable section 110 and detachably connected with the attachment support rod 100;

[0108] The installation and dismounting platform 300 is hoisted to a position where the pole beam 230 is docked, and a third assembly operation between the pole beam 230 and the installation and dismounting platform 300 is completed, wherein the third assembly operation comprises detachable connection of the first mounting part 231 at both ends of the pole beam 230 with the connecting stand 320, respectively.

[0109] In addition, the application further provides a tower crane, characterized in that the tower crane comprises the tower crane attachment connection device according to the above description. Since the tower crane adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0110] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0111] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0112] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0113] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An attachment connection device for a tower crane, characterized in that: The tower crane attachment connection device comprises: An attachment strut (100) having a length-adjustable section (110) for adjusting the length of the strut; A first connecting structure (200) is provided on the length-adjustable section (110); The installation and disassembly platform (300) comprises a platform body (310) and a connecting frame (320), wherein the lower end of the connecting frame (320) is arranged on the walking surface of the platform body (310), and the upper end of the connecting frame (320) extends out of the protective fence (311) of the platform body (310) and is connected to the first connecting structure (200).

2. The attachment connection device for tower crane according to claim 1, characterized in that: The first connection structure (200) includes a first fixed portion (210) and a second fixed portion (220), the first fixed portion (210) and the second fixed portion (220) being respectively arranged on the first joint (111) and the second joint (112) of the length-adjustable section (110), the first end of the first joint (111) being connectable to the main strut section (120) of the attachment strut (100), the second joint (112) being adjustable in length at the second end of the first joint (111), the upper end of the connection stand (320) being spaced apart by a first connection portion and a second connection portion, the first connection portion being connected to the first fixed portion (210), the second connection portion allowing the second fixed portion (220) to move along the telescopic direction of the second joint (112).

3. The attachment connection device for tower crane according to claim 2, characterized in that: The first fixing portion (210) is configured as a first ear plate, and the first connecting portion is detachably connected to the first ear plate via a first connecting pin (211); the second fixing portion (220) is configured as a second ear plate, and the second connecting portion is detachably connected to the second ear plate via a second connecting pin (221), and one of the second ear plate and the second connecting portion is provided with an elongated hole (222) for the second connecting pin (221) to pass through, and the elongated hole (222) is extended along the telescopic direction of the second joint (112).

4. The attachment connection device for tower crane according to claim 3, characterized in that: The elongated hole (222) is provided on the second ear plate, and the second connecting portion is provided with a through hole adapted to the shaft diameter of the second connecting pin (221), and the second ear plates can be provided on both opposite sides of the second connecting portion.

5. The attachment connection device for tower crane according to claim 3, characterized in that: The first end of the first joint (111) is provided with a flange body (113) docked with the main support rod section (120), and the upper end of the first ear plate is formed with a welding notch (212) at a corner close to the main support rod section (120), and the welding notch (212) has a first welding surface for fitting and welding with the side of the flange body (113) facing downward, and a second welding surface for fitting and welding with the plate surface of the flange body (113) facing away from the main support rod section (120); And / or, the length of the elongated hole (222) is greater than or equal to the telescopic length of the second joint (112) on the first joint (111).

6. The attachment connection device for tower crane according to claim 2, characterized in that: The tower crane attachment connection device further comprises a second connection structure (400), wherein the second connection structure (400) is arranged on the main support rod segment (120) near the end of the main support rod segment (120), and the first connection structure (200) and the second connection structure (400) can both be detachably connected to the upper end of the connection stand (320).

7. The attachment connection device for tower crane according to claim 1, characterized in that: The first connecting structure (200) includes a shoulder pole beam (230), the shoulder pole beam (230) spanning the length-adjustable section (110) and having both ends extending outward, and both ends of the extending shoulder pole beam (230) are provided with a first mounting portion (231), and the first mounting portion (231) is connected to the upper end of the connecting stand (320).

8. The attachment connection device for tower crane according to claim 7, characterized in that: The shoulder pole beam (230) is placed on the upper side of the attachment support rod (100) and can be switched between the length-adjustable section (110) or the main support rod section (120) of the attachment support rod (100). The shoulder pole beam (230) is also provided with a second mounting portion (232). The second mounting portion (232) is used to be detachably connected to the attachment support rod (100) through a position locking assembly when the placement position of the shoulder pole beam (230) is switched, so as to fix the shoulder pole beam (230) in the placement position.

9. The attachment connection device for tower crane according to any one of claims 1 to 8, characterized in that: The first connecting structure (200) has at least two connection points arranged at intervals, and the connecting stand (320) includes a supporting vertical rod (321), a connecting footrest rod (322) and an oblique support rod (323). The number of the supporting vertical rods (321) is set to at least two, and the lower ends of at least two of the supporting vertical rods (321) are arranged on the walking platform. The upper ends of at least two of the supporting vertical rods (321) extend out of the protective fence (311) and are respectively connected to at least two of the connection points in a one-to-one correspondence. The connecting footrest rod (322) connects two adjacent supporting vertical rods (321). The oblique support rod (323) is arranged obliquely and its upper and lower ends are respectively connected to the supporting vertical rod (321) and the walking platform in a one-to-one correspondence.

10. The attachment connection device for tower crane according to any one of claims 1 to 8, characterized in that: The walking platform is provided with upwardly extending skirting boards (312) on all sides; And / or, the walking platform includes a bottom frame (315) and a steel plate mesh (316), the bottom frame (315) is formed by lap welding of steel members, the steel plate mesh (316) is laid on the bottom frame (315), and the bottom frame (315) is set as a channel steel member at a position connected to the lower end of the connecting frame (320), and includes an angle steel member at a position avoiding the connecting frame (320).

11. An attachment connection method, characterized in that: The attachment connection method is applied to the attachment connection device for a tower crane according to any one of claims 2 to 6, and comprises: Complete the assembly of the mounting platform (300) on the attachment support rod (100) to form an attachment connection device; Lifting the assembled attachment connection device to a preset installation height; Connecting the fixed end of the attachment strut (100) to one of the building and the tower attachment frame, wherein the fixed end of the attachment strut (100) is set as the end of the main strut section (120) away from the length-adjustable section (110); Adjusting the position of the adjustment end of the attachment strut (100) and connecting the adjustment end to the other of the building and the tower attachment frame, wherein the adjustment end of the attachment strut (100) is configured as a second joint (112); The length-adjustable section (110) is welded to fixedly connect the first joint (111) and the second joint (112).

12. The attachment connection method according to claim 11, characterized in that: The assembly of the mounting platform (300) on the attachment support rod (100) to form the attachment connection device includes: Performing a first assembly operation on the attachment strut (100), wherein the first assembly operation includes connecting the main strut section (120) and the length-adjustable section (110), and detachably connecting the first joint (111) and the second joint (112) of the length-adjustable section (110); The attachment support rod (100) is hoisted to a position where the length-adjustable section (110) and the installation and disassembly platform (300) are docked, and a second assembly operation between the length-adjustable section (110) and the installation and disassembly platform (300) is completed, wherein the second assembly operation includes detachably connecting the first fixing portion (210) on the first joint (111) to the first connecting portion, and detachably connecting the second fixing portion (220) on the second joint (112) to the second connecting portion.

13. A tower crane, characterized in that: The tower crane comprises the attachment connection device for a tower crane according to any one of claims 1 to 10.

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