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

Abstract

The invention discloses an attachment connecting device for a tower crane, an attachment connecting method and the tower crane, the attachment connecting device for the tower crane comprises an attachment supporting rod, a first connecting structure and a mounting and dismounting platform, the attachment supporting rod is provided with a length adjustable section capable of adjusting the length of the supporting rod, and the first connecting structure is arranged on the length adjustable section; the mounting and dismounting platform comprises a platform body and a connecting vertical frame, the lower end of the connecting vertical frame is arranged on the walking table top of the platform body, and the upper end of the connecting vertical frame extends out of the protective fence of the platform body and is connected with the first connecting structure. Not only can the welding convenience be obviously improved, but also the installation difficulty and the manufacturing cost of the platform can be obviously reduced.

Description

Technical Field

[0001] The 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 are also known as tower cranes. They are mainly used to transport materials for construction. Tower cranes include a tower body built along the height of a building. The independent height of a tower crane refers to the height at which the tower crane can be stable and independent without being attached to a building. When the tower body exceeds the independent height, an attachment frame needs to be set up to connect the tower body to the building to improve the stability of the tower crane. The attachment strut is an important part of the attachment frame, which connects the building and the attachment frame on the tower body and transfers the load at the attachment point to the building.

[0003] The attachment struts of super-large tower cranes are long, bear heavy forces, and are difficult to control in size, so there are length-adjustable sections, and the length-adjustable sections need to be welded after being adjusted in place at high altitude. In order to facilitate construction, a construction platform needs to be built, which can be used for building construction and for the installation and welding of the attachment frame base and attachment struts. At present, the construction platform can generally be installed on a building or a tower. When the construction platform is installed on a building, although the welding point of the attachment strut can be set close to the building, there are still places that the construction platform cannot cover, and the welding of the attachment strut will be very troublesome. It may be necessary to use a hoist to hoist the welder to the welding point for welding, which poses a safety hazard. In addition, since the attachment struts need to be welded all around, it will be more difficult to weld the sides and bottom of the attachment struts. When the construction platform is installed on the tower, in order to weld the sides and bottom of the attachment struts, a larger platform needs to be built on the tower, and the installation of the platform is also difficult and the manufacturing cost of the platform is high. Summary of the invention

[0004] In view of 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 construction platform on a tower body and high cost of platform manufacturing.

[0005] To achieve the above-mentioned purpose, 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 comprises 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 comprises 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 fixed 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 fixed 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 shaft, 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 side of the flange body facing downward 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 rod segment near the end of the main support rod segment, and 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 has two ends extending outwardly. Both ends of the extending 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 one embodiment of the present invention, the shoulder pole beam is placed on the upper side of the attachment strut and can be switched between the length-adjustable section or the main strut section of the attachment strut. A second mounting portion is also provided on the shoulder pole beam. The second mounting portion is used to detachably connect with the attachment strut through a position locking assembly when the placement position of the shoulder pole beam is switched, so as to fix the shoulder pole beam in the placement position.

[0014] In one embodiment of the present invention, the first connecting structure has at least two connection points arranged at intervals, the connecting frame includes a supporting vertical rod, a connecting foot pedal rod and a diagonal support rod, the number of the supporting vertical rods is set to at least two, the lower ends of at least two supporting vertical rods are arranged on the walking platform, the upper ends of at least two supporting vertical rods extend out of the protective fence and are respectively connected to the at least two connection points one by one, the connecting foot pedal rod connects two adjacent supporting vertical rods, the diagonal support rod is arranged at an angle and the upper and lower ends are respectively connected to the supporting vertical rod and the walking platform one by one.

[0015] In one embodiment of the present invention, the walking platform is provided with skirting boards extending upwards around the four sides.

[0016] In one embodiment of the present invention, the walking platform includes a bottom frame and a steel plate mesh. The bottom frame is formed by lap welding of steel components. The steel plate mesh is laid on the bottom frame. The bottom frame is configured as a channel steel component at a position connected to the lower end of a connecting frame, and includes an angle steel component at a position avoiding the connecting frame.

[0017] To achieve the above object, the second aspect of the present invention provides an attachment connection method, wherein the attachment connection method is applied to the attachment connection device for tower crane according to the above, and comprises:

[0018] Complete the assembly of the installation and removal platform on the attachment struts to form an attachment connection device;

[0019] Lifting the assembled attachment connection device to a preset installation height;

[0020] Connecting the fixed end of the attachment strut to one of the building and the tower attachment frame, wherein the fixed end of the attachment strut is set as an end of the main strut section away from the length-adjustable section;

[0021] Adjusting the position of the adjustment end of the attachment strut and connecting the adjustment end to the other of the building and the tower attachment frame, wherein the adjustment end of the attachment strut is set as a second joint;

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

[0023] In one embodiment of the present invention, completing the assembly of the mounting platform on the attachment support rod to form the attachment connection device includes:

[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 removably connecting the first joint and the second joint of the length-adjustable segment;

[0025] The attachment support rod is lifted to the position where the length-adjustable section is docked with the installation platform, and a 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 and connection device, since it includes an attachment strut, a first connection structure and an installation and disassembly platform, the first connection structure is arranged on the length-adjustable section of the attachment strut, and the installation and disassembly platform is additionally provided with a connection stand on the walking surface of the platform body, and 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 strut, 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 strut 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 a 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 on the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative work. In the accompanying drawings:

[0031] Figure 1 is a schematic structural diagram of a mounting and disassembly 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 diagram of the structure of connecting the stand to the length-adjustable section according to the first embodiment of the present invention;

[0036] Figure 6 is a schematic diagram of the structure in which the mounting and disassembly platform is mounted on the attachment support rod according to the 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 a viewing angle;

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

[0039] Fig. 9 is a schematic structural diagram of a mounting and disassembly platform according to a first embodiment of the present invention;

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

[0041] Fig.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 hole 230 Shoulder pole beam

[0050] 231 first mounting portion 232 second mounting portion

[0051] 300 Installation platform 310 Platform body

[0052] 311 Protective fence 312 Skirting board

[0053] 313 Railing Mounting Seat 314 Railing Clamp Assembly

[0054] 315 bottom frame 316 steel plate mesh

[0055] 320 Connecting frame 321 Supporting vertical rod

[0056] 322 connecting pedal rod 323 diagonal support rod

[0057] 400 second connection structure 410 third ear plate

[0058] 420 Fourth ear plate DETAILED DESCRIPTION

[0059] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

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

[0061] like Figure 1 and Figure 2 As shown, the present invention provides an attachment connection device for a tower crane, wherein the attachment connection device for a tower crane comprises:

[0062] An attachment strut 100 having an adjustable length section 110 for adjusting the length of the strut;

[0063] The first connecting structure 200 is provided on the length-adjustable section 110;

[0064] The installation and disassembly platform 300 includes a platform body 310 and a connecting frame 320 . 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 .

[0065] When the tower crane uses the above-mentioned attachment and 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 platform of the platform body 310, and 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, then 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, which is significantly more convenient than installing the construction platform on a building in the prior art, especially when the installation height of the attachment strut 100 on the installation and disassembly platform 300 is limited to a position convenient for welding, the welding around the length-adjustable section 110 is very convenient, and 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 a length-adjustable section 110, the length-adjustable 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, which is far away from the first joint 111, is set as the fixed end of the attachment strut 100 to connect with one of the building and the tower attachment frame, the second joint 112 is telescopically set at the second end of the first joint 111, and the second joint 112 is set at the adjustment end of the attachment strut 100 to connect with the other of the building and the tower attachment frame. At the same time, the number of the main strut sections 120 includes but is not limited to one, and the two 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, and 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, and the first end of the first joint 111 can be connected to the main strut section 120 of the attachment strut 100, and the second joint 112 is set to be adjustable in telescopic length at the second end of the first joint 111, and the first connecting portion and the second connecting portion are spaced apart at the upper end of the connecting frame 320, and 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 connection structure 200 can be split into a first fixed portion 210 and a second fixed portion 220, and the first fixed portion 210 and the second fixed portion 220 are respectively arranged on the first joint 111 and the second joint 112 of the length-adjustable section 110. The first connection portion of the connecting stand 320 is connected to the first fixed portion 210, so that one end of the installation and disassembly platform 300 can be fixed on the first joint 111 connected to the main support rod section 120, and the second connection portion can allow the second fixed portion 220 to move telescopically. On the one hand, the other end of the installation and disassembly platform 300 can be connected to the second joint 112 to ensure the stability of the installation and disassembly platform 300, and on the other hand, it can also ensure that 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 can be ensured to be within the coverage range of the installation and disassembly platform 300, thereby improving the convenience of the welding operation. Of course, the present invention is not limited thereto, and the first connection structure 200 may be disposed only on the first joint 111 , that is, the installation 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 set as a first ear plate, and the first connecting portion is detachably connected to the first ear plate through a first connecting pin 211. The first fixing portion 210 is selected as an ear plate, so that the first connecting portion and the first fixing portion 210 can be detachably connected by using a pin, thereby improving the convenience of disassembly and assembly. Specifically, the first fixing portion 210 is arranged at the lower side of the first joint 111, and in order to ensure the connection strength between the first joint 111 and the connecting stand 320, two first fixing portions 210 can be arranged at intervals along the width direction of the first joint 111. Correspondingly, the connecting stand 320 is provided with two first connecting portions, and the number of first ear plates in each first fixing portion 210 is two, and each first connecting portion extends between the two first ear plates of the corresponding first fixing portion 210. The first connecting portion and the two first ear plates are both provided with first axial holes that are arranged in pairs, and the first connecting pin 211 is arranged through all the first axial holes to lock the first connecting portion and the two first ear plates in series. In addition, the hole 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 part 220 is set as a second ear plate, and the second connecting part is detachably connected to the second ear plate through a second connecting pin 221, and one of the second ear plate and the second connecting part 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. Choosing to set the second fixing part 220 as an ear plate also facilitates the detachable connection of the first connecting part and the first fixing part 210 by using a pin, thereby improving the convenience of disassembly and assembly, and setting the hole on one of the second ear plate and the second connecting part for the second connecting pin 221 to pass through as an elongated hole 222 not only realizes the movement of the second joint 112 on the second connecting part, but also has a simple structure and low manufacturing cost. Specifically, the second fixing portion 220 is provided at 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, and correspondingly, the connecting stand 320 is provided with two second connecting portions, and the number of second ear plates in each second fixing portion 220 is two, and each second connecting portion extends between the two second ear plates of the corresponding second fixing portion 220, and the first connecting pin 211 is passed through the second connecting portion and the two second ear plates for serial locking. In addition, the other of the second ear plate 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 the shaft diameter of the second connecting pin 221 or slightly larger than the shaft diameter of the second connecting pin 221. Of course, the present invention is not limited to this, and the second fixing portion can also be set as a sliding structure that can be slidably connected with 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 the second ear plates 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 instead of on the second connecting portion, so that the structure of the connecting stand 320 is simple, 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 load and moving relative to the second connecting portion, thereby 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, a flange body 113 is provided at the first end of the first joint 111 for docking with the main strut section 120, and the second joint 112 can be sleeved on the outer side 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 strut 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 strut section 120. That is, the first ear plate is connected to the first joint 111 by welding, and in order 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, and the welding notch 212 forms an L-shaped corner welding surface including a first welding surface and a second welding surface, and in order 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 close to the main support rod 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 rod section 120, in order to avoid interference with the docking of the flange body 113 of the first joint 111 and the main support rod section 120. Specifically, a flange body 113 may be provided at the end of the main support rod section 120. 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 via a pin or bolt. The flange body 113 includes but is not limited to a square shape.

[0072] In one embodiment of the present invention, the length of the long strip hole 222 is greater than or equal to the telescopic length of the second joint 112 on the first joint 111, so as to ensure that the connection between the mounting platform 300 and the second joint 112 does not affect the length adjustment of the adjustable length section 110. Preferably, the length of the long strip hole 222 is set to be greater than the telescopic length of the second joint 112 on the first joint 111.

[0073] See also Figure 2 In one embodiment of the present invention, the attachment connection device for a tower crane further includes a second connection structure 400, which is disposed on the main strut segment 120 near the end of the main strut segment 120. Specifically, the end of the main strut segment 120 can be used to be detachably connected with the first joint 111 or the end of another main strut segment 120, that is, the second connection structure 400 is disposed near the connection of the main strut segment 120, and the first connection structure 200 and the second connection structure 400 can be detachably connected to the upper end of the connection stand 320. That is, by adding the second connection structure 400, the installation and removal platform 300 can also be added at the connection near the main strut segment 120, so as to facilitate the inspection, maintenance and disassembly of the connection of the main strut segment 120 in the later stage. Specifically, the second connecting structure 400 may include 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. The third ear plate 410 and the fourth ear plate 420 can be respectively connected one-to-one with the first connecting part and the second connecting part of the connecting frame 320 through a pin shaft.

[0074] See also Figures 6 to 8 In the second embodiment of the present invention, the first connection structure 200 includes a shoulder pole beam 230, which spans the adjustable length section 110 and is extended at both ends. Both ends of the 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 frame 320. That is, in this embodiment, the first connection structure 200 is not split and is provided as a shoulder pole beam 230 of an integrated structure. The shoulder pole beam 230 is provided across the adjustable length section 110, and both ends are provided with a first mounting portion 231 connected to the upper end of the connecting frame 320, so that the two first mounting portions 231 are provided in a direction intersecting with the length direction of the adjustable length section 110, preferably in a direction intersecting perpendicularly, that is, the shoulder pole beam 230 can only be provided on the first joint 111 or the second joint 112, so that there is no need to consider the influence of the telescopic adjustment of the second joint 112, and the design and manufacturing will be simpler. Specifically, the first mounting portion 231 can be provided at the lower side of the shoulder pole beam 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 detachably connect with 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 and the attachment strut 100 are detachably connected, so that when the adjustable length section 110 needs to be welded, the shoulder pole beam 230 can be placed on the upper side of the adjustable length section 110 and fixed by the position locking assembly. It should be noted that the attachment strut 100 has completed the connection of both ends at this time, and then the installation and disassembly platform 300 is installed on the shoulder pole beam 230; when the connection of the main strut section 120 needs to be inspected, maintained and disassembled, the shoulder pole beam 230 can be placed on the upper side of the main strut section 120 and fixed by the position locking assembly, and then the installation and disassembly platform 300 is 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 when placed on the upper side of the attachment strut 100.

[0076] like Figure 1 , Figure 5 and Fig. 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 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 arranged 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 respectively connected to at least two connecting points in a one-to-one correspondence. The connecting pedal rod 322 connects the two adjacent supporting vertical rods 321. The addition of the connecting pedal rod 322, on the one hand, plays a role in strengthening the supporting vertical rods 321, and on the other hand, it is convenient for welders to step on them during welding operations. The diagonal support rod 323 is tilted and the upper and lower ends are respectively connected to the supporting vertical rods 321 and the walking platform in a one-to-one correspondence. The addition of the diagonal support rod 323 can further play a role in strengthening 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 portion 210 and the second fixing portion 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 both set to the first connection 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 both set to the second connection portion and are arranged corresponding to the two second fixing portions 220, and the four support vertical rods 321 are arranged in a square and enclosed in sequence, and the two support vertical rods 321 located on any side are connected with a connecting pedal rod 322, and there are two oblique braces 323 on the support vertical rod 321, and the two oblique braces 323 are arranged on the two side surfaces of the support vertical rod 321 where the connecting pedal rod 322 is not provided. More specifically, the support vertical rod 321 can be set as a channel steel member.

[0078] See also Figure 1 and Fig. 9 In one embodiment of the present invention, the walking platform is provided with a skirting board 312 extending upwards on all sides. The addition of the skirting board 312 can avoid the phenomenon of stepping on empty space. Specifically, a railing mounting seat 313 is also provided on the outside of the skirting board 312 for inserting the railing in the protective fence 311. The protective fence 311 includes four railings, which are arranged around the platform body 310, and two adjacent railings are connected by a railing clamping plate assembly 314, so that the four railings become a whole, thereby improving the protection capability. At the same time, the protective 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. The bottom frame 315 is configured as a channel steel member at a position connected to the lower end of the connecting frame 320. The channel steel member has good mechanical properties to strengthen the support of the connecting frame 320, and an angle steel member is included at a 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 need to rely on buildings and tower cranes for construction, which is often limited by the building structure and tower structure, and has a small coverage area. This solution can be installed on the attached support pole, which is not limited by any structure, even the structure of the support pole itself will not limit the installation and disassembly platform. The installation and disassembly platform will greatly facilitate the installation and disassembly of the attached support pole and daily maintenance by on-site operators.

[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 to operate at high altitudes and wear safety ropes, which is time-consuming, labor-intensive and unsafe. This adopts pin connection, which is very convenient for installation and disassembly. Only one person is required to install and disassemble on the ground, which saves time, labor and safety.

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

[0087] Traditional installation and disassembly platforms need to be attached to buildings or tower cranes. In addition to considering the construction of operators, the platform also needs to consider how to connect to the building or tower crane, which will cause additional costs and size waste. This solution only needs to consider the construction space of operators, and the structural requirements for the attachment support rods are very low, which will not cause space and cost waste.

[0088] 4. High utilization rate.

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

[0090] In addition, if Fig.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 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 may include a connection between two adjacent main strut sections 120, a connection between the first joint 111 of the adjustable length section 110 and the main strut section 120, and a connection between the adjustable length section 110 and the installation platform 300.

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

[0094] Specifically, Fig.10As shown, both ends of the attachment support rod 100 may be provided with lifting ears, and the entire attachment connection device can be conveniently 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 an 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 an end of the main strut section 120 that is away from the length adjustable section 110, and the adjustable end is specifically the second joint 112. When installing the attachment strut 100, it is necessary to connect the fixed end first so that the adjustable end can be adjusted later and then connected. 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 set as the second joint 112 .

[0098] Step S500 , welding the length-adjustable section 110 to fix 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, completing the assembly of the mounting platform 300 on the attachment support rod 100 to form the attachment connection device includes:

[0101] Step S110 , performing a first assembly operation on the attachment strut 100 , wherein the first assembly operation includes connection between the main strut section 120 and the length-adjustable section 110 , and detachable connection between the first joint 111 and the second joint 112 of the length-adjustable section 110 .

[0102] Step S120, hoisting the attachment support rod 100 to the position where the length-adjustable section 110 and the installation and disassembly platform 300 are docked, and completing the second assembly operation between the length-adjustable section 110 and the installation and disassembly platform 300, 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.

[0103] Furthermore, the first assembly operation of the entire attachment strut 100 can be completed on the ground first, and the first assembly operation includes a detachable connection between the first joint 111 and the second joint 112, so that when the entire attachment strut 100 is lifted to dock with the installation and removal platform 300, the stability of the lifting of the second joint 112 can be ensured. Furthermore, the first joint 111 and the second joint 112 are both provided with lifting ears, and a steel wire rope can be used to pass through the lifting ears on the first joint 111 and the second joint 112 in sequence, and then the two ends of the steel wire rope are hinged. Of course, when the second joint 112 is adjusted, the steel wire rope can be removed first.

[0104] In addition, 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 second embodiment, and comprises:

[0105] 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 an end of the main strut section 120 away from the length-adjustable section 110;

[0106] Adjust the position of the adjustment end of the attachment strut 100 and connect the adjustment end to the other of the building and the tower attachment frame, wherein the adjustment end of the attachment strut 100 is set as the second joint 112 in the length adjustable section 110;

[0107] The shoulder pole beam 230 is placed horizontally on the upper side of the length-adjustable section 110 and is detachably connected to the attachment strut 100;

[0108] The installation and disassembly platform 300 is lifted to a position for docking with the shoulder pole beam 230, and the third assembly operation between the shoulder pole beam 230 and the installation and disassembly platform 300 is completed, wherein the third assembly operation includes detachably connecting the first mounting parts 231 at both ends of the shoulder pole beam 230 to the connecting stand 320 respectively.

[0109] In addition, the present invention provides a tower crane, characterized in that the tower crane includes the above-mentioned tower crane attachment connection device. Since the tower crane adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one 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 as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0111] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0112] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0113] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary 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 an adjustable length section (110) for adjusting the length of the strut; A first connection 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) are respectively and one-to-one 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 arranged at the second end of the first joint (111) with adjustable telescopic length, the upper end of the connecting frame (320) is provided with a first connection portion and a second connection portion at intervals, the first connection portion is connected to the first fixed portion (210), and the second connection portion allows 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 axial diameter of the second connecting pin shaft (221), and the second ear plates can be provided on 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) connected to the main strut section (120), and a welding notch (212) is formed at a corner of the upper end of the first ear plate close to the main strut section (120), and the welding notch (212) has a first welding surface for fitting welding with the side of the flange body (113) facing downward and a second welding surface for fitting welding with the plate surface of the flange body (113) facing away from the main strut 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 connection structure (200) comprises a shoulder pole beam (230), the shoulder pole beam (230) spanning the adjustable length section (110) and having two ends extending outwardly therefrom, both ends of the shoulder pole beam (230) being extended outwardly therefrom are provided with a first mounting portion (231), and the first mounting portion (231) is connected to the upper end of the connection 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 connection structure (200) has at least two connection points arranged at intervals, and the connection frame (320) includes a support vertical rod (321), a connection pedal rod (322) and an oblique support rod (323). The number of the support vertical rods (321) is set to at least two, and the lower ends of at least two of the support vertical rods (321) are arranged on the walking platform. The upper ends of at least two of the support 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 connection pedal rod (322) connects two adjacently arranged support vertical rods (321), and the oblique support rod (323) is inclined and its upper and lower ends are respectively connected to the support 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 a skirting board (312) extending upwards on all four 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 components, the steel plate mesh (316) is laid on the bottom frame (315), and the bottom frame (315) is set as a channel steel component at the position connected to the lower end of the connecting frame (320), and includes an angle steel component 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 installation and removal 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 an end of the main strut section (120) away from the length-adjustable section (110); Adjusting the position of the adjustment end of the attachment support rod (100) and connecting the adjustment end to the other of the building and the tower attachment frame, wherein the adjustment end of the attachment support rod (100) is set 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 and disassembly platform (300) on the attachment support rod (100) to form the attachment connection device comprises: 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 connected, 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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