Adjustable locking support system and construction method for fastening standard sections

Abstract

The present application relates to an adjustable locking support system and construction method for fastening a standard section, and relates to the technical field of building construction, comprising a plurality of stacked tower crane standard sections connected and arranged in a core tube, wherein a locking support mechanism is provided on the outside of the tower crane standard section, wherein the locking support mechanism comprises a lifting platform provided above the core tube, wherein the tower crane standard section passes through the lifting platform, wherein a climbing section is provided between the lifting platform and the core tube, wherein a support frame connected to the lifting platform is provided in the core tube, wherein a vertical support assembly connected to the core tube is provided on the support frame, wherein an adjustable horizontal support assembly is connected to the vertical support assembly, wherein the horizontal support assembly simultaneously connects the tower crane standard section and the core tube. The present application has the effect of improving the supporting capacity of the tower crane cantilever, reducing the vacuum period caused by the cantilever being too long and unable to be used, and improving construction efficiency.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to an adjustable locking support system and a construction method for fastening standard sections. Background Art

[0002] During the current construction of super-high-rise buildings, multi-grid elevator shafts within the core tube often utilize large construction tower cranes with standard sections, such as floor-mounted tower cranes and floor-mounted concrete placing booms. These large tower cranes often require wall attachments every three to four standard sections to provide horizontal fixation and prevent excessive cantilever height in the working section. However, as these multi-grid elevator shafts become more common, integral steel platforms are often used for vertical structural construction.

[0003] However, due to the existence of the integral lifting steel platform, the wall attachment mechanism cannot be installed on the standard sections at the location of the integral lifting steel platform and the location above it, which causes the cantilever of the large construction tower crane to be too high and unusable. Summary of the Invention

[0004] The purpose of this application is to provide an adjustable locking support system and construction method for fastening standard sections, so as to improve the supporting capacity of the tower crane cantilever, reduce the vacuum period caused by the cantilever being too long and unable to be used, and improve construction efficiency.

[0005] In the first aspect, the present application provides an adjustable locking support system for fastening a standard section, which adopts the following technical solutions:

[0006] An adjustable locking and supporting system for fastening a standard section comprises a plurality of tower crane standard sections which are connected in a stacked manner and arranged in a core tube. A locking and supporting mechanism is provided on the outside of the tower crane standard section. The locking and supporting mechanism comprises a lifting platform which is arranged above the core tube. The tower crane standard section passes through the lifting platform. A climbing section is provided between the lifting platform and the core tube. A supporting frame connected to the lifting platform is provided in the core tube. A vertical supporting assembly connected to the core tube is provided on the supporting frame. An adjustable horizontal supporting assembly is connected to the vertical supporting assembly. The horizontal supporting assembly simultaneously connects the tower crane standard section and the core tube.

[0007] By adopting the above technical solution, when vertical structure construction is required, the vertical support assembly and the horizontal support assembly are adjusted so that the climbing section drives the lifting platform, the vertical support assembly and the horizontal support assembly to rise synchronously. After reaching a certain height, the vertical support assembly connects the support frame and the core tube, thereby supporting the lifting platform, so that the lifting platform has sufficient vertical support force for construction operations. At the same time, a horizontal support assembly is arranged between the standard section of the tower crane and the core tube. On the one hand, it provides horizontal support for the standard section, and on the other hand, it makes the lifting platform more stable in the horizontal direction. Therefore, the locking mechanism can provide horizontal support for the standard section of the tower crane, reduce the possibility of the tower crane being unable to be used due to the cantilever being too large, reduce the vacuum period of use caused by unusable tower crane, and improve construction efficiency.

[0008] Optionally, the vertical support assembly includes a support platform arranged on the support frame, and a support bracket is slidably connected to the support platform. One end of the support bracket is inserted into the inner wall of the core tube, and the other end is provided with a hydraulic cylinder for driving the support bracket to move.

[0009] By adopting the above technical solution, after the supporting corbel is inserted into the inner wall of the core tube, the supporting corbel connects the supporting platform and the core tube, thereby providing vertical upward supporting force to the supporting platform, so that the supporting platform and the lifting platform can be stably supported.

[0010] Optionally, the horizontal support assembly includes a support beam connected to the support platform, one side of the support beam is supported on the side wall of the standard section of the tower crane, and the support beam is provided with a plurality of screws facing the inner wall of the core tube, one end of the screw away from the inner wall of the core tube is rotatably connected to the support beam, and the other end is threadedly connected to a sliding support, the sliding support is slidably connected to the support beam, and the end of the sliding support close to the inner wall of the core tube is hinged with a rotating bracket, and the end of the rotating bracket away from the sliding bracket is hinged with a wedge, and the middle part of the rotating bracket is rotatably and slidably connected to the support beam.

[0011] By adopting the above technical solution, the screw is rotated in the forward direction, and the screw drives the sliding support to translate and move away from the inner wall of the core tube. Under the drive of the sliding support, the rotating bracket rotates and slides relative to the support beam, so that the wedge block approaches until it is pressed against the inner wall of the core tube, thereby completing the horizontal support and providing horizontal support force for the standard section of the tower crane.

[0012] Optionally, one end of the sliding support close to the core tube is also rotatably connected to a first ratchet that can abut against the inner wall of the core tube, and the tooth tip of the first ratchet abutting against the inner wall of the core tube is arranged obliquely downward.

[0013] By adopting the above technical solution, when the lifting platform needs to rise, the screw is rotated in the opposite direction, the screw drives the sliding support to slide and approach the inner wall of the core tube, the wedge block is away from the inner wall of the core tube, and the first ratchet is pressed against the inner wall of the core tube. Therefore, when the lifting platform rises, the horizontal support assembly can also connect the standard section of the tower crane and the core tube at the same time, thereby providing horizontal support for the standard section of the tower crane.

[0014] Optionally, a coaxial second ratchet is fixed on the side wall of the first ratchet, the tooth top circle diameter of the second ratchet is smaller than the tooth top circle diameter of the first ratchet, the ratchet rotation direction of the second ratchet is opposite to that of the first ratchet, the sliding support is rotatably connected to a pawl engaged with the second ratchet, and a return spring is provided between the sliding support and the pawl to push the pawl to engage with the second ratchet.

[0015] By adopting the above technical solution, the cooperation between the second ratchet and the pawl enables the first ratchet to move only in the upward direction. At the same time, the tooth tip of the first ratchet is inserted into the inner wall of the core tube, which greatly improves the stability of the support, thereby reducing the risk of falling and improving the safety of construction.

[0016] Optionally, a plurality of rollers evenly distributed around the standard section of the tower crane are provided on the side wall of the support beam facing the standard section of the tower crane, and the rollers abut against the side wall of the standard section of the tower crane.

[0017] By adopting the above technical solution, the supporting beam frame abuts against the side wall of the tower crane standard section through the rollers, thereby reducing the huge friction caused by movement while supporting the tower crane standard section.

[0018] Optionally, the supporting beam and the supporting platform are provided with lifting ears on the side walls opposite to each other, and a steel cable connecting the two lifting ears is provided between the two lifting ears facing each other.

[0019] By adopting the above technical solution, the support beam and the support platform are connected by steel cables, that is, a flexible connection, which reduces the rigid impact on the tower crane standard section caused by the shaking of the lifting platform, thereby improving the overall stability of the tower crane standard section.

[0020] In the second aspect, the present application provides an adjustable locking support system and construction method for fastening standard sections, which adopts the following technical solutions:

[0021] A construction method for an adjustable locking support system for fastening a standard section comprises the following steps:

[0022] S100: Before the tower crane is raised, the vertical support assembly and the horizontal support assembly are fixedly supported on the inner wall of the core tube;

[0023] S110: The vertical support assembly is extended by the hydraulic cylinder, driving the support bracket to be inserted into the inner wall of the core tube;

[0024] S120: The horizontal support assembly rotates via the lead screw, driving the first ratchet wheel away from the inner wall of the core tube, while causing the wedge block to press against the inner wall of the core tube;

[0025] S200: When the tower crane is lifting, the standard section of the tower crane moves upward along the rollers;

[0026] S300: After the tower crane is raised, the single-layer shear wall construction phase begins. At this time, the vertical and horizontal support assemblies are still fixedly supported on the inner wall of the core tube.

[0027] S400: After the single-layer shear wall construction phase, the locking support system enters the adjustment and lifting phase. The vertical support assembly is separated from the inner wall of the core tube, the horizontal support assembly can be moved, and the climbing section drives the lifting platform to rise;

[0028] S410: The vertical support assembly is retracted by the hydraulic cylinder, driving the supporting bracket away from the inner wall of the core tube;

[0029] S420: The horizontal support assembly rotates via the lead screw, driving the first ratchet wheel to press against the inner wall of the core tube, while moving the wedge away from the inner wall of the core tube;

[0030] S500: Entering the stage before tower crane lifting again.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. The horizontal support assembly enables the locking mechanism to provide horizontal support for the standard section of the tower crane, reducing the possibility of the tower crane being unusable due to the cantilever being too large, shortening the vacuum period caused by unusable tower cranes, and improving construction efficiency.

[0033] 2. The first ratchet rises unidirectionally under the action of the second ratchet and the pawl, so that the locking mechanism can continuously provide horizontal support for the tower crane standard parts during the rising process, thereby improving the overall stability and reducing the risk of falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0035] Figure 2 2 is a schematic diagram of the two-dimensional structure of the vertical support assembly and the horizontal support assembly of an embodiment of the present application;

[0036] Figure 3 is a schematic diagram of the three-dimensional structure of the horizontal support assembly of an embodiment of the present application;

[0037] In the figure, 1. core tube; 2. standard section of tower crane; 3. lifting platform; 31. climbing section; 32. support frame; 4. vertical support assembly; 41. support platform; 42. limit support; 43. support bracket; 44. hydraulic cylinder; 5. horizontal support assembly; 51. support beam; 511. crossbeam; 512. longitudinal beam; 513. connector; 514. roller; 52. fixed support; 53. box; 54. screw; 55. sliding support; 56. rotating bracket; 561. wedge; 562. waist-shaped hole; 563. fixed rod; 564. back plate; 57. first ratchet; 58. second ratchet; 59. pawl; 591. return spring; 6. lifting ear; 7. steel cable. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0039] Example: An adjustable locking system for fastening a standard section, referring to Figure 1 and Figure 2 , including multiple tower crane standard sections 2 stacked and installed in the core tube 1. The stacking height of the tower crane standard sections 2 is higher than the height of the core tube 1. The upper end of the core tube 1 is provided with a locking mechanism, which includes a lifting platform 3 located above the core tube 1. The tower crane standard section 2 passes through the lifting platform 3. A tower crane cantilever is provided above the lifting platform 3, and the tower crane cantilever is installed on the tower crane standard section 2.

[0040] Climbing sections 31 are provided at the four corners of the lifting platform 3. One end of the climbing section 31 abuts against the upper end surface of the core tube 1, and the other point is installed on the lifting platform 3. The climbing section 31 relies on the extension and contraction of the hydraulic jacking cylinder to achieve the overall lifting of the lifting platform 3.

[0041] A support frame 32 is fixed below the lifting platform 3. The end of the support frame 32 away from the lifting platform 3 is located inside the core tube 1 and is arranged around the tower crane standard section 2. A vertical support assembly 4 is provided at the end of the support frame 32 away from the lifting platform 3. The vertical support assembly 4 includes a support platform 41 fixedly connected to the support frame 32. The support platform 41 is fixedly connected to a limit support 42 corresponding to each inner side wall of the core tube 1. A support bracket 43 passes through and is slidably connected to the limit support 42. One end of the support bracket 43 faces the inner side wall of the core tube 1, and the other end is hinged to a hydraulic cylinder 44, which is fixedly mounted on the support platform 41. A support groove for inserting the supporting corbel 43 is opened on the inner wall of the core tube 1. When the height of the lifting platform 3 needs to be fixed, the hydraulic cylinder 44 is extended, the corbel support moves toward the inside of the core tube 1, and is inserted into the corresponding support groove, so that the supporting corbel 43 is clamped on the core tube 1, thereby maintaining the support for the support platform 41, the support frame 32 and the lifting platform 3 in the vertical direction.

[0042] Reference Figure 2 and Figure 3 A horizontal support assembly 5 is provided below the vertical support assembly 4. The horizontal support assembly 5 includes a support beam frame 51. The support beam frame 51 includes two mutually parallel horizontal beams 511 and two mutually parallel longitudinal beams 512. The longitudinal beams 512 are overlapped on top of the horizontal beams 511 and form a well shape in the horizontal plane. A U-shaped connector 513 is provided at the connection between the horizontal beams 511 and the longitudinal beams 512. The ends of the U-shaped connector 513 pass through the horizontal beams 511 and the longitudinal beams 512 at the same time, and the horizontal beams 511 and the longitudinal beams 512 are fixedly connected by nuts. A lifting lug 6 is fixedly connected above the two ends of the horizontal beam 511. The same and opposite lifting lugs 6 are fixedly connected to the side of the support platform 41 facing the horizontal beam 511. A steel cable 7 is provided between the two upper and lower opposite lifting lugs 6. The two ends of the steel cable 7 are respectively fixed to the two lifting lugs 6.

[0043] Rollers 514 are installed on the side of the two cross beams 511 and the two longitudinal beams 512 facing the tower crane standard section 2. The rollers 514 are located in the area surrounded by the two cross beams 511 and the two longitudinal beams 512, and the rollers 514 abut against the side walls of the tower crane standard section 2 for positioning and supporting the tower crane standard section 2.

[0044] Both the crossbeam 511 and the longitudinal beam 512 are configured as rectangular tubes. Fixed supports 52 are fixedly connected to the interior of each end of the crossbeam 511. A box 53 is fixedly connected above the fixed support 52. A lead screw 54, parallel to the crossbeam 511, is provided above the fixed support 52. One end of the lead screw 54 penetrates the interior of the box 53 and is rotatably connected thereto. The other end faces the inner wall of the core tube 1 and is threadedly connected to a sliding support 55. The sliding support 55 is slidably connected to the fixed support 52. A handwheel is rotatably connected to the box 53, which is in transmission connection with the lead screw 54 via a gear.

[0045] The end of the sliding support 55, away from the box 53, extends out from the crossbeam 511 and is connected to two pivot brackets 56. One end of the pivot bracket 56 is pivotally connected to the sliding support 55, and the other end is hingedly connected to a wedge 561. The axes of the pivoting ends of the two pivot brackets 56 and the sliding support 55 coincide, and the other ends of the two pivot brackets 56 are spaced apart from each other, located above and below the sliding support 55. A waist-shaped hole 562 is defined in the middle of the pivot bracket 56. A fixing rod 563 is mounted within the waist-shaped hole 562. A back plate 564 is fixed to one end of the fixing rod 563. The back plate 564 is fixed to the crossbeam 511. The internal structure of the longitudinal beam 512 is identical to that of the crossbeam 511.

[0046] In this way, the sliding support 55 can be driven to move by rotating the screw 54. When the sliding support 55 is close to the inner wall of the core tube 1, the two wedge blocks 561 are away from the inner wall of the core tube 1. When the sliding support 55 is away from the inner wall of the core tube 1, the two wedge blocks 561 are close to the inner wall of the core tube 1 until they are pressed against the inner wall of the core tube 1.

[0047] A first ratchet 57 is also rotatably connected to the sliding support 55. The rotation axis of the first ratchet 57 coincides with the rotation axis of the rotating bracket 56. When the sliding support 55 approaches the inner wall of the core tube 1, the tooth tips of the first ratchet 57 are inserted into the inner wall of the core tube 1. At the same time, the tooth tips of the first ratchet 57 abutting the inner wall of the core tube 1 are arranged obliquely downward. A second ratchet 58 is fixed to one side of the first ratchet 57. The tooth top circle diameter of the second ratchet 58 is smaller than the tooth top circle diameter of the first ratchet 57. The ratchet teeth of the second ratchet 58 have a rotation direction opposite to that of the first ratchet 57. A pawl 59 is rotatably connected to the sliding support 55 and is engaged with the second ratchet 58. A return spring 591 is fixedly connected to the sliding support 55. The end of the return spring 591 away from the sliding spring is fixed to the pawl 59, causing the pawl 59 to engage with the ratchet teeth of the second ratchet 58.

[0048] When the lifting platform 3 needs to rise, the screw 54 is rotated in the opposite direction, and the screw 54 drives the sliding support 55 to slide and approach the inner wall of the core tube 1, and the wedge block 561 is away from the inner wall of the core tube 1. At the same time, the first ratchet 57 is pressed against the inner wall of the core tube 1, and the pawl 59 makes the second ratchet 58 only able to rotate in one direction, thereby making the first ratchet 57 only able to rotate in the rising direction. Therefore, while the lifting platform 3 rises, the horizontal support assembly 5 can also simultaneously connect the tower crane standard section 2 and the core tube 1, thereby providing horizontal support for the tower crane standard section 2 and reducing the risk of falling.

[0049] A construction method for an adjustable locking support system for fastening a standard section comprises the following steps:

[0050] S100: Before the tower crane is raised, the vertical support assembly 4 and the horizontal support assembly 5 are fixedly supported on the inner wall of the core tube 1;

[0051] S110: The vertical support assembly 4 is extended by the hydraulic cylinder 44, driving the support bracket 43 to be inserted into the inner wall of the core tube 1;

[0052] S120: The horizontal support assembly 5 rotates via the lead screw 54, driving the first ratchet 57 away from the inner wall of the core tube 1, while causing the wedge 561 to press against the inner wall of the core tube 1;

[0053] S200: When the tower crane is lifting, the tower crane standard section 2 moves upward along the roller 514;

[0054] S300: After the tower crane is raised, the single-layer shear wall construction phase begins. At this time, the vertical support assembly 4 and the horizontal support assembly 5 are still fixedly supported on the inner wall of the core tube 1.

[0055] S400: After the single-layer shear wall construction phase, the locking support system enters the adjustment and lifting phase. The vertical support assembly 4 is separated from the inner wall of the core tube 1, the horizontal support assembly 5 can be moved, and the climbing section 31 drives the lifting platform 3 to rise;

[0056] S410: The vertical support assembly 4 contracts via the hydraulic cylinder 44, driving the supporting bracket 43 away from the inner wall of the core tube 1;

[0057] S420: The horizontal support assembly 5 rotates via the lead screw 54, driving the first ratchet 57 to press against the inner wall of the core tube 1, while moving the wedge 561 away from the inner wall of the core tube 1;

[0058] S500: Entering the stage before tower crane lifting again.

[0059] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. An adjustable locking system for fastening standard sections, characterized in that: The invention comprises a plurality of stacked tower crane standard sections (2) arranged in a core tube (1); a locking support mechanism is provided on the outside of the tower crane standard section (2); the locking support mechanism comprises a lifting platform (3) arranged above the core tube (1); the tower crane standard section (2) passes through the lifting platform (3); a climbing section (31) is provided between the lifting platform (3) and the core tube (1); a support frame (32) connected to the lifting platform (3) is provided in the core tube (1); a vertical support assembly (4) connected to the core tube (1) is provided on the support frame (32); an adjustable horizontal support assembly (5) is connected to the vertical support assembly (4); the horizontal support assembly (5) is connected to the tower crane standard section (2) and the core tube (1) at the same time; the vertical support assembly (4) comprises a support platform (41) arranged on the support frame (32); a support bracket (43) is slidably connected to the support platform (41); one end of the support bracket (43) is plugged into On the inner side wall of the core tube (1), a hydraulic cylinder (44) for driving the supporting bracket (43) to move is provided at the other end. The horizontal support assembly (5) includes a support beam (51) connected to the support platform (41). One side of the support beam (51) is supported on the side wall of the tower crane standard section (2). The support beam (51) is provided with a plurality of screws (54) facing the inner side wall of the core tube (1). The screws (54) are rotated at one end away from the inner side wall of the core tube (1). The sliding support (55) is movably connected to the support beam (51), and the other end is threadedly connected to a sliding support (55). The sliding support (55) is slidably connected to the support beam (51). One end of the sliding support (55) close to the inner wall of the core tube (1) is hinged to a rotating bracket (56), and one end of the rotating bracket (56) away from the sliding support (55) is hinged to a wedge (561). The middle part of the rotating bracket (56) is rotatably and slidably connected to the support beam (51).

2. The adjustable locking support system for fastening a standard section according to claim 1, characterized in that: One end of the sliding support (55) close to the core barrel (1) is also rotatably connected to a first ratchet (57) that can abut against the inner wall of the core barrel (1), and the tooth tip of the first ratchet (57) abutting against the inner wall of the core barrel (1) is arranged obliquely downward.

3. The adjustable locking support system for fastening a standard section according to claim 2, characterized in that: A coaxial second ratchet (58) is fixed on the side wall of the first ratchet (57), the tooth top circle diameter of the second ratchet (58) is smaller than the tooth top circle diameter of the first ratchet (57), and the ratchet rotation direction of the second ratchet (58) is opposite to that of the first ratchet (57). The sliding support (55) is rotatably connected to a pawl (59) engaged with the second ratchet (58), and a return spring (591) is provided between the sliding support (55) and the pawl (59) to push the pawl (59) to engage with the second ratchet (58).

4. The adjustable locking support system for fastening a standard section according to claim 1, characterized in that: A plurality of rollers (514) evenly distributed around the tower crane standard section (2) are provided on the side wall of the support beam (51) facing the tower crane standard section (2), and the rollers (514) abut against the side wall of the tower crane standard section (2).

5. The adjustable locking support system for fastening a standard section according to claim 1, characterized in that: Lifting ears (6) are provided on the opposite side walls of the support beam (51) and the support platform (41), and a steel cable (7) connecting the two lifting ears (6) is provided between the two upper and lower opposite lifting ears (6).

6. A construction method for an adjustable locking support system for fastening a standard section, characterized in that: The following steps are involved: S100: Before the tower crane is raised, the vertical support assembly (4) and the horizontal support assembly (5) are fixedly supported on the inner wall of the core tube (1); S110: The vertical support assembly (4) is extended by the hydraulic cylinder (44), driving the support bracket (43) to be inserted into the inner wall of the core tube (1); S120: The horizontal support assembly (5) rotates via the lead screw (54), driving the first ratchet (57) away from the inner wall of the core tube (1), while causing the wedge (561) to press against the inner wall of the core tube (1); S200: When the tower crane is lifted, the tower crane standard section (2) moves upward along the roller (514); S300: After the tower crane is lifted, the single-layer shear wall construction phase begins. At this time, the vertical support assembly (4) and the horizontal support assembly (5) are still fixedly supported on the inner wall of the core tube (1); S400: After the single-layer shear wall construction phase, the locking support system adjustment and lifting phase begins, the vertical support assembly (4) is separated from the inner wall of the core tube (1), the horizontal support assembly (5) is supported movably, and the climbing section (31) drives the lifting platform (3) to rise; S410: The vertical support assembly (4) contracts via the hydraulic cylinder (44), driving the supporting bracket (43) away from the inner wall of the core tube (1); S420: The horizontal support assembly (5) rotates via the lead screw (54), driving the first ratchet (57) to press against the inner wall of the core tube (1), while simultaneously moving the wedge (561) away from the inner wall of the core tube (1); S500: Entering the stage before tower crane lifting again.

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