Roof crane adjustable foundation and supporting method

Abstract

The invention discloses a roof crane adjustable foundation and a supporting method, and relates to the technical field of building construction.The roof crane adjustable foundation comprises a cross beam and further comprises a locking assembly for achieving the fast-assembling effect and an adjusting assembly for achieving perpendicularity control, and the cross beam is hollow and comprises four beam rods; inclined struts are fixedly connected between adjacent beam rods of the cross-shaped beam, and grooves are formed between the adjacent beam rods of the cross-shaped beam and the inclined struts. By arranging the locking assembly, self-centering and self-locking of the supporting foundation are achieved, by arranging the compensation mechanism, overlarge outer supporting force of the inner supporting mechanism on the peripheral wall of the roof is converted into downward pressure, by arranging the adjusting assembly, multi-angle free adjustment of the working table is achieved, and loads are automatically balanced in the adjusting process.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to an adjustable roof foundation and support method. Background Technology

[0002] An adjustable roof-mounted foundation is a modular steel structure support system installed on the top of a building structure. It compensates for construction errors on the concrete structure surface by adjusting its height, achieving precise leveling of the foundation frame and ensuring that the load transmitted by the roof-mounted foundation can be applied evenly and safely to the building's load-bearing structure.

[0003] A search revealed Chinese patent CN119021264A, which describes a design where clamps are fitted onto the outer sides of the ends of a cross beam. One side of each clamp is fixedly connected to an embedded part, which is embedded within a concrete foundation. Several pads are placed between the lower end of the cross beam and the clamps, and a limiting adjustment bolt is placed between the upper end of the cross beam and the clamps to lock the ends of the cross beam. Several jacks are installed between the cross beam and the concrete foundation on the inner side of each clamp. This design uses screw jacks to adjust the height of the four legs of the cross beam. In the event of uneven settlement of the foundation, the verticality of the tower crane can be quickly adjusted using the limiting adjustment bolts and pads, ensuring that the verticality of the tower crane remains within a safe range, thereby improving construction safety and efficiency.

[0004] However, the above solution uses the anchoring of embedded parts and concrete foundation to fix the cross beam. When disassembling the cross beam, the embedded parts need to be cut off, which can easily damage the concrete strength and the embedded parts cannot be reused. Therefore, the above solution is not suitable for construction needs in short-term scenarios. On the other hand, the above solution uses screw jacks to adjust the height and pads to distribute the load on the jacks. However, the placement and replacement of the pads rely on manual operation and the pads need to be selected according to the requirements. If the pads are too low, it will be difficult to effectively distribute the load. If they are too high, it will easily affect the verticality of the crane. Therefore, the above solution cannot achieve the expected goal of rapid adjustment. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable roof foundation and support method, which has the advantages of free adjustment and quick assembly / disassembly, and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable roof hanging foundation, including a cross beam, a locking component for quick installation, and an adjustment component for verticality control. The cross beam is hollow and includes four beams. Diagonal braces are fixedly connected between adjacent beams of the cross beam, and grooves are formed between adjacent beams of the cross beam and the diagonal braces.

[0007] The locking assembly includes an internal support mechanism for completing the fixing operation and a pressure balancing compensation mechanism. The internal support mechanism includes a drive shaft located at the center of the cross beam, and the compensation mechanism includes pads located at the four ends of the cross beam.

[0008] The adjustment assembly includes a work platform for mounting the crane, an angle-changing mechanism for controlling the levelness of the work platform, and a load-balancing mechanism. The angle-changing mechanism includes a fixed frame fixedly connected to the top of the four beams of the cross beam, and the load-balancing mechanism includes a base fixedly connected to the groove between the cross beam and the diagonal brace.

[0009] Preferably, the drive shaft is rotatably connected to the bottom inner wall at the center of the cross beam, a motor is fixedly connected to the outer contour of the drive shaft, a bevel gear is fixedly connected to the top of the drive shaft, a positioning shaft is fixedly connected to the top of the bevel gear, and the positioning shaft is rotatably connected to the top inner wall at the center of the cross beam.

[0010] Preferably, the bottom end of the bevel gear one is meshed with four bevel gear twos that are equally spaced and distributed around it. Each bevel gear two has a lead screw one fixedly connected to its end away from the bevel gear one. Each lead screw one has a transmission rod threaded through its outer contour. Each transmission rod is slidably connected to the beam of the cross beam at the corresponding position.

[0011] Preferably, the compensation mechanism is provided with four sets, each set at the end of the four beams of the cross beam. Each pad has a cross-shaped horizontal and vertical groove inside. A guide plate is slidably connected in each horizontal groove. Each guide plate is fixedly connected to the end of the corresponding transmission rod away from the bevel gear. A compression spring is fixedly connected to the end of each guide plate away from the transmission rod. The end of each compression spring away from the guide plate is fixedly connected to the interior of the corresponding guide plate.

[0012] Preferably, each of the guide plates has an arc groove inside, each of the vertical grooves has a wedge block slidably connected inside, each wedge block is sleeved on the outer contour of the guide plate at the corresponding position, each wedge block has a positioning pin fixedly connected inside, and each positioning pin is slidably connected inside the arc groove at the corresponding position.

[0013] Preferably, the angle-changing mechanism is provided in four sets and is fixedly connected to the upper surfaces of the four beams of the cross beam. The bottom of each fixed frame is fixedly connected to a slide rail. A slider is slidably connected through the outer contour of each slide rail. A lead screw is threaded through the middle section of each slider. The end of each lead screw away from the bevel gear extends outward through the fixed frame and is fixedly connected to a motor. A scissor frame is rotatably connected to the outer contour of each slider via a pin. The bottom corners of the scissor frame are fixedly connected to the tops of the four beams of the cross beam. The tops of the scissor frame are fixedly connected to the four corners of the bottom of the worktable. A compensation spring is fixedly connected inside each fixed frame and sleeved on the outer contour of the lead screw. The end of each compensation spring away from the bevel gear is fixedly connected to the outer contour of the slider.

[0014] Preferably, the balancing mechanism is provided with four sets, each fixedly connected to the groove formed by adjacent beams and diagonal braces of the cross beam. The top of each base is slidably connected to a hydraulic rod, and the top of each hydraulic rod is fixedly connected to a top plate. A compensation spring two, sleeved on the outer contour of the hydraulic rod, is fixedly connected between the bottom of each top plate and the top of the base. A fixing pin one is fixedly connected to the outer contour of each top plate. The other end of the fixing pin one is rotatably connected to a collar one. A fixing pin two is fixedly connected to the outer contour of the collar one. The other end of the fixing pin two is rotatably connected to a collar two. The top of the collar two is fixedly connected to the bottom of the worktable. The fixing pin one and the collar one are arranged in a cross shape.

[0015] Preferably, a method for supporting an adjustable roof foundation includes the following steps:

[0016] S1. Internal support positioning: First, set the cross beam at the center of the roof, start the internal support mechanism, the internal support mechanism extends synchronously from the four beams of the cross beam until it abuts against the perimeter wall of the roof, and the cross beam is self-centered and self-locked by the limit of the perimeter wall of the roof.

[0017] S2, Pressure Compensation: When the internal support mechanism abuts against the roof perimeter wall, the compensation mechanism works automatically to convert the excess external support force into downward pressure on the roof, avoiding the impact of excessive external support force on the concrete strength of the roof perimeter wall, and at the same time using the downward pressure to counteract the overturning moment during the lifting process.

[0018] S3. Angle adjustment: When uneven settlement occurs on the roof, the level of the work platform is adjusted by the angle adjustment mechanism so that the work platform is always kept at a horizontal angle. At this time, the roof scissors are set at the top of the work platform, and the roof scissors always remain vertical.

[0019] S4. Uniform load distribution: During the adjustment process of the angle-changing mechanism, the balancing mechanism works synchronously to achieve the support effect on the work platform while uniformly distributing the load on the work platform, thus avoiding structural fracture due to concentrated load.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. By setting a locking component, the present invention achieves self-centering and self-locking of the supporting foundation, thereby effectively resisting horizontal forces and part of the overturning moment, and without the need for anchoring operations, achieving the purpose of quick assembly and disassembly.

[0022] 2. By setting up a compensation mechanism, the present invention converts the excessive external support force of the internal support mechanism on the roof perimeter wall into downward pressure, effectively avoiding the impact on the strength of the concrete structure of the roof perimeter wall due to excessive force. At the same time, the downward pressure combined with the structural rigidity achieves the anti-pull-out effect during the lifting process.

[0023] 3. By setting up adjustment components and cooperating with four angle-changing mechanisms, this invention enables free adjustment of the work platform at multiple angles, thereby effectively balancing the uneven settlement error of the roof and ensuring the verticality of the crane operation; and during the adjustment process, the balancing mechanism automatically balances the load, effectively reducing the risk of structural fracture caused by concentrated load. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0025] Figure 2 This is a cross-sectional view of the main structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the locking component of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal support mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the compensation mechanism of the present invention;

[0029] Figure 6 This is a schematic diagram of the adjustment component of the present invention;

[0030] Figure 7 This is a schematic diagram of the angle-changing mechanism of the present invention;

[0031] Figure 8 This is a schematic diagram of the balancing mechanism of the present invention;

[0032] Figure 9 This is a flowchart of the supporting method of the present invention.

[0033] In the diagram: 1. Cross beam; 11. Diagonal brace; 2. Drive shaft; 21. Motor 1; 22. Bevel gear 1; 23. Positioning shaft; 24. Bevel gear 2; 25. Lead screw 1; 26. Transmission rod; 3. Guide plate; 31. Arc groove; 32. Compression spring; 33. Pad; 34. Horizontal groove; 35. Vertical groove; 36. Wedge block; 37. Positioning pin; 4. Worktable; 5. Fixing frame; 51. Slide rail; 52. Slider; 53. Lead screw 2; 54. Motor 2; 55. Scissor lift frame; 56. Compensating spring 1; 6. Base; 61. Hydraulic rod; 62. Top plate; 63. Compensating spring 2; 64. Fixing pin 1; 65. Ring 1; 66. Fixing pin 2; 67. Ring 2. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1:

[0036] Please see Figures 1 to 9 The present invention provides a technical solution: an adjustable roof hanging foundation, including a cross beam 1, characterized in that: it further includes a locking component for quick installation and an adjustment component for verticality control, the cross beam 1 is hollow and includes four beams, and diagonal braces 11 are fixedly connected between adjacent beams of the cross beam 1, and grooves are formed between adjacent beams of the cross beam 1 and diagonal braces 11.

[0037] The locking assembly includes an internal support mechanism for completing the fixing operation and a pressure balancing compensation mechanism. The internal support mechanism includes a drive shaft 2 located at the center of the cross beam 1, and the compensation mechanism includes pads 33 located at the four ends of the cross beam 1.

[0038] The adjustment assembly includes a work platform 4 for mounting the crane, an angle-changing mechanism for controlling the levelness of the work platform 4, and a load-balancing mechanism. The angle-changing mechanism includes a fixed frame 5 fixedly connected to the top of the four beams of the cross beam 1, and the load-balancing mechanism includes a base 6 fixedly connected to the groove between the cross beam 1 and the diagonal brace 11.

[0039] Firstly, in this scheme, the cross beam 1, as a conventional means in existing technology, serves as the structural frame supporting the foundation. The diagonal brace 11 further corrects the structural strength of the cross beam 1. The internal support mechanism, through expansion, cooperates with the perimeter wall of the roof to achieve the self-centering and self-locking effect of the cross beam 1 and the overall support foundation. After centering and locking, the support foundation cannot move horizontally under the restriction of the perimeter wall, thus effectively resisting horizontal forces and part of the overturning moment. Subsequently, the compensation mechanism realizes the application of vertical pressure and force system conversion, converting the excessive external support force applied to the perimeter wall by the internal support mechanism into vertical downward pressure on the roof, thereby reducing the direct pressure acting on the perimeter wall, avoiding local crushing of the concrete, and effectively protecting the concrete structure of the roof perimeter wall. At the same time, the vertical downward pressure directly offsets the upward force generated by the overturning moment during the roof hoisting operation, further improving the stability of the support foundation.

[0040] Furthermore, when uneven settlement occurs on the roof, it can be visually demonstrated by the horizontal angle of the work platform 4. At this time, the personnel adjust the angle-changing mechanism accordingly. The four angle-changing mechanisms control the four corners of the work platform 4 respectively, thereby achieving the horizontal adjustment of the work platform 4. Since the crane is set on the top of the work platform 4 and remains perpendicular to the work platform 4, when the work platform 4 becomes horizontal under the action of the angle-changing mechanism, the roof crane becomes vertical.

[0041] At the same time, the balancing mechanism supports the work platform 4 and the roof hoist, and works synchronously with the angle change of the work platform 4. When the angle-changing mechanism operates to level the work platform 4, the load on the settlement side of the work platform 4 increases and the load on the non-settlement side decreases. At this time, the balancing mechanism automatically balances the load distribution of the work platform 4 to avoid excessive load concentration that could cause plastic deformation or fracture of the device structure.

[0042] Example 2:

[0043] The drive shaft 2 is rotatably connected to the bottom inner wall at the center of the cross beam 1. A motor 21 is fixedly connected to the outer contour of the drive shaft 2. A bevel gear 22 is fixedly connected to the top of the drive shaft 2. A positioning shaft 23 is fixedly connected to the top of the bevel gear 22. The positioning shaft 23 is rotatably connected to the top inner wall at the center of the cross beam 1.

[0044] The bottom end of the bevel gear 22 is meshed with four bevel gears 24 that are equally spaced and arranged around it. Each bevel gear 24 is fixedly connected to a lead screw 25 at the end away from the bevel gear 22. A transmission rod 26 is threaded through the outer contour of each lead screw 25. Each transmission rod 26 is slidably connected to the beam of the cross beam 1 at the corresponding position.

[0045] The compensation mechanism is provided in four sets, each set at the end of one of the four beams of the cross beam 1. Each pad 33 has a cross-shaped horizontal groove 34 and a vertical groove 35 inside. Each horizontal groove 34 is slidably connected to a guide plate 3. Each guide plate 3 is fixedly connected to the end of the corresponding transmission rod 26 away from the bevel gear 24. Each guide plate 3 is fixedly connected to the end away from the transmission rod 26 with a compression spring 32. Each compression spring 32 is fixedly connected to the interior of the corresponding guide plate 3 with the end away from the guide plate 3.

[0046] Each guide plate 3 has an arc groove 31 inside, and each vertical groove 35 has a wedge block 36 slidably connected inside. Each wedge block 36 is sleeved on the outer contour of the guide plate 3 at the corresponding position. Each wedge block 36 has a positioning pin 37 fixedly connected inside, and each positioning pin 37 is slidably connected inside the arc groove 31 at the corresponding position.

[0047] First, the cross beam 1 is roughly positioned at the center of the roof. Then, motor 21 is started, which drives the drive shaft 2, bevel gear 22, and positioning shaft 23 to rotate synchronously. Positioning shaft 23 is used to limit bevel gear 22 and ensure the meshing effect between bevel gear 22 and bevel gear 24. Bevel gear 22 further drives the four bevel gears 24 and lead screw 25 to rotate synchronously. At this time, transmission rod 26 tends to rotate synchronously, but because transmission rod 26 is slidably connected inside the cross beam 1, the cross beam 1 restricts transmission rod 26 from rotating. Therefore, under the screw connection between transmission rod 26 and lead screw 25, the rotation of lead screw 25 will cause transmission rod 26 to extend outward from the end of the cross beam 1. The four lead screws 25 extend synchronously, thereby achieving the expansion effect.

[0048] Furthermore, since the compensation mechanism is located at the ends of the four beams of the cross beam 1, the transmission rod 26 extends outward while driving the compensation mechanism to move synchronously. The transmission rod 26 continues to extend until the pad 33 abuts against the four inner corners of the roof perimeter wall. At this time, due to the abutment effect of the roof perimeter wall, the pad 33 cannot expand further outward with the transmission rod 26, thereby achieving the self-locking effect of the support foundation. The locked support foundation can effectively resist horizontal force and part of the overturning moment. However, if the transmission rod 26 continues to extend under the action of the lead screw 25, the transmission rod 26 will squeeze the guide plate 3 to slide in the transverse groove 34. During this process, the compression spring 32 is compressed synchronously.

[0049] During the sliding process of the guide plate 3, the arc groove 31 slides synchronously with the guide plate 3. At this time, under the transmission effect of the arc groove 31, the positioning pin 37 tends to drive the wedge block 36 to slide horizontally synchronously. However, since the wedge block 36 is slidably connected in the vertical groove 35, and the vertical groove 35 and the pad block 33 move in the same way, the pad block 33 is restricted by the roof perimeter wall and cannot slide horizontally further. As a result, the wedge block 36 and the positioning pin 37 also cannot slide horizontally. At this time, under the guidance of the arc groove 31, the positioning pin 37 begins to drive the wedge block 36 to move downward. The bottom end of the wedge block 36 contacts the roof and squeezes, thereby converting the excessive external support force on the roof perimeter wall into downward pressure on the roof. The vertical pressure on the roof offsets the pull-out force generated by the overturning moment during the hoisting operation, further improving the pull-out effect of the scheme.

[0050] It should be noted that due to the positional error of the cross beam 1, during the outward expansion of the transmission rod 26, one or two pads 33 may first contact the roof perimeter wall. At this time, the compensation mechanism with the roof perimeter wall starts to work until its compensation strength reaches its maximum, that is, the downward pressure of the wedge 36 on the roof reaches its maximum. Subsequently, the further outward expansion of the transmission rod 26 will cause the center of the cross beam 1 to move closer to the center of the roof until all four pads 33 are against the roof perimeter wall and the compensation strength of the four compensation mechanisms is consistent. At this time, the center of the cross beam 1 corresponds to the center of the roof, realizing the self-centering effect of the scheme. This allows the overall load of the device to be evenly and symmetrically transferred to the roof, effectively improving the stability and anti-overturning ability of the device. Moreover, no anchoring operation is required, achieving the effect of quick installation and quick disassembly.

[0051] The disassembly process is similar. When the motor 21 is started and rotated in the opposite direction, the four transmission rods 26 automatically retract. At this time, the compression spring 32 rebounds, causing the wedge block 36 to rise to relieve the downward pressure on the roof. Subsequently, the four pads 33 disengage from the contact with the roof perimeter wall, and the support mechanism is reset.

[0052] Example 3:

[0053] The angle-changing mechanism is provided in four sets and is fixedly connected to the upper surface of the four beams of the cross beam 1. The bottom of each fixed frame 5 is fixedly connected to a slide rail 51. A slider 52 is slidably connected through the outer contour of each slide rail 51. A lead screw 53 is threaded through the middle section of each slider 52. The end of each lead screw 53 away from the bevel gear 22 extends outward through the fixed frame 5 and is fixedly connected to a motor 54. A scissor lift 55 is rotatably connected to the outer contour of each slider 52 through a pin. The bottom corners of the scissor lift 55 are fixedly connected to the top of the four beams of the cross beam 1. The top of the scissor lift 55 is fixedly connected to the four corners of the bottom of the worktable 4. A compensation spring 56 is fixedly connected inside each fixed frame 5 and sleeved on the outer contour of the lead screw 53. The end of each compensation spring 56 away from the bevel gear 22 is fixedly connected to the outer contour of the slider 52.

[0054] The balancing mechanism is provided with four sets, which are respectively fixedly connected to the grooves formed by the adjacent beams and diagonal braces 11 of the cross beam 1. The top of each base 6 is slidably connected to a hydraulic rod 61. The top of each hydraulic rod 61 is fixedly connected to a top plate 62. The bottom of each top plate 62 and the top of the base 6 are fixedly connected to a compensation spring 63 sleeved on the outer contour of the hydraulic rod 61. The outer contour of each top plate 62 is fixedly connected to a fixing pin 64. The other end of the fixing pin 64 is rotatably connected to a collar 65. The outer contour of the collar 65 is fixedly connected to a fixing pin 66. The other end of the fixing pin 66 is rotatably connected to a collar 67. The top of the collar 67 is fixedly connected to the bottom of the worktable 4. The fixing pin 64 and the collar 65 are arranged in a cross shape.

[0055] A method for supporting an adjustable roof foundation includes the following steps:

[0056] S1. Internal support positioning: First, set the cross beam 1 at the center of the roof, start the internal support mechanism, the internal support mechanism extends synchronously from the four beams of the cross beam 1 until it abuts against the perimeter wall of the roof, and the cross beam 1 is self-centered and self-locked by the limit of the perimeter wall of the roof.

[0057] S2, Pressure Compensation: When the internal support mechanism abuts against the roof perimeter wall, the compensation mechanism works automatically to convert the excess external support force into downward pressure on the roof, avoiding the impact of excessive external support force on the concrete strength of the roof perimeter wall, and at the same time using the downward pressure to counteract the overturning moment during the lifting process.

[0058] S3. Angle adjustment: When uneven settlement occurs on the roof, the level of the work platform 4 is adjusted by the angle adjustment mechanism so that the work platform 4 is always kept at a horizontal angle. At this time, the roof scissors are set at the top of the work platform 4, and the roof scissors always remain vertical.

[0059] S4. Uniform load distribution: During the adjustment process of the angle-changing mechanism, the balancing mechanism works synchronously to achieve the supporting effect on the work platform 4 while uniformly distributing the load on the work platform 4, thus avoiding structural fracture due to concentrated load.

[0060] Furthermore, by observing the horizontal angle of the workbench 4, it can be determined whether there is uneven settlement of the roof. A level can be added to the side of the workbench 4 for further intuitive display to complete the angle judgment. When uneven settlement of the roof occurs, the workbench 4 is no longer horizontal. At this time, the motor 54 on the settlement side is started. The motor 54 drives the lead screw 53 to rotate. Since the slider 52 is screwed to the lead screw 53, and the fixed frame 5 and the slide rail 51 guide and limit the slider 52, the slider 52 begins to move along the slide rail 51. During the movement, the compensation spring 56 is compressed synchronously.

[0061] Since one bottom corner of the scissor lift 55 is fixedly connected to the top of the beam column of the cross beam 1, and the other bottom corner is rotatably connected to the slider 52 through a pin, as the slider 52 moves, the distance between the two bottom corners of the scissor lift 55 gradually shortens, causing the scissor lift 55 to gradually fold. At this time, the top position of the scissor lift 55 rises accordingly, thereby raising the sinking side of the work platform 4 until the work platform 4 returns to a horizontal state and the motor 2 54 stops.

[0062] It should be noted that, through the cooperation of the four angle-changing mechanisms, the working platform can be freely adjusted to four angles, thereby meeting various roof settlement conditions and fully ensuring the applicability of the solution.

[0063] On the other hand, during the process of the work platform 4 being restored to a horizontal state by the angle-changing mechanism, the corresponding balancing mechanism operates synchronously. Since the base 6 is set on the roof, the base 6, hydraulic rod 61, and top plate 62 will all shift from a vertical state due to the roof settlement error. When the work platform 4 is restored to a horizontal state, an angle difference appears between the top plate 62 and the work platform 4. Since the second collar 67 is fixedly connected to the work platform 4, that is, there is an angle difference between the second collar 67 and the top plate 62, the second collar 67 rotates on the second fixing pin 66, and the first collar 65 rotates on the first fixing pin 64, thereby balancing the angle difference between the second collar 67 and the top plate 62, so that the balancing mechanism can continuously support the work platform 4.

[0064] Meanwhile, as the settling side of the work platform 4 is lifted, the load increases. At this time, the corresponding position compensation spring 2 63 absorbs part of the load, and the strain angle mechanism compresses the spring 1 56 during the adjustment process, which also absorbs part of the load. This achieves a uniform distribution of the load on the work platform 4 as a whole, effectively avoiding plastic deformation or fracture of the structure due to load concentration.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roof hanger adjustable foundation comprising a cross beam (1), characterized in that: The locking assembly and the adjusting assembly are used to realize the quick mounting effect and the verticality control, the cross beam (1) is hollow and includes four beam rods, and the inclined braces (11) are fixedly connected between the adjacent beam rods of the cross beam (1), and the adjacent beam rods and the inclined braces (11) of the cross beam (1) form grooves. The locking assembly includes the inner supporting mechanism for completing the fixing work and the compensation mechanism for pressure balance, the inner supporting mechanism includes the driving shaft (2) arranged at the center of the cross beam (1), and the compensation mechanism includes the pads (33) arranged at the four ends of the cross beam (1). The adjusting assembly includes the working table (4) of the crane, the angle changing mechanism for controlling the horizontal degree of the working table (4) and the balancing mechanism for balancing the load, the angle changing mechanism includes the fixed frame (5) fixedly connected to the top ends of the four beam rods of the cross beam (1), and the balancing mechanism includes the base (6) fixedly connected to the grooves between the cross beam (1) and the inclined braces (11).

2. A roof hanger adjustable base according to claim 1, wherein: The driving shaft (2) penetrates the bottom end inner wall rotatably connected to the center of the cross beam (1), the motor one (21) is fixedly connected to the outer contour of the driving shaft (2), the bevel gear one (22) is fixedly connected to the top end of the driving shaft (2), the positioning shaft (23) is fixedly connected to the top end of the bevel gear one (22), and the positioning shaft (23) penetrates and is rotatably connected to the top end inner wall of the center of the cross beam (1).

3. A roof hanger adjustable base according to claim 2, wherein: The four bevel gear twos (24) are fixedly connected to the outer contour of the bevel gear one (22) at equal intervals, the screw rod one (25) is fixedly connected to one end of each bevel gear two (24) away from the bevel gear one (22), the transmission rod (26) is screwed to the outer contour of each screw rod one (25), and each transmission rod (26) is slidably connected to the beam rod of the cross beam (1) at a corresponding position.

4. A roof hanger adjustable base according to claim 1, wherein: The compensation mechanism includes four groups of pads (33) arranged at the ends of the four beam rods of the cross beam (1), the horizontal groove (34) and the vertical groove (35) are arranged in the cross shape in the interior of each pad (33), the guide plate (3) is slidably connected to each horizontal groove (34), one end of each guide plate (3) away from the bevel gear two (24) is fixedly connected to the transmission rod (26) at a corresponding position, the compression spring (32) is fixedly connected to one end of each guide plate (3) away from the transmission rod (26), and one end of each compression spring (32) away from the guide plate (3) is fixedly connected to the interior of the guide plate (3) at a corresponding position.

5. A roof hanger adjustable base according to claim 4, wherein: The arc groove (31) is arranged in the interior of each guide plate (3), the wedge block (36) is slidably connected to the interior of each vertical groove (35), the wedge block (36) is sleeved on the outer contour of the guide plate (3) at a corresponding position, the positioning pin (37) is fixedly connected to the interior of each wedge block (36), and the positioning pin (37) is slidably connected to the interior of the arc groove (31) at a corresponding position.

6. A roof hanger adjustable base according to claim 1, wherein: The variable angle mechanism is provided with four groups and is fixedly connected to the upper surfaces of the four beam bars of the cross beam (1) respectively, the bottom end in each of the fixed frames (5) is fixedly connected with a sliding rail (51), a sliding block (52) is slidably connected to the outer contour of each of the sliding rails (51), a screw rod two (53) is screwed through the middle section of each of the sliding blocks (52), each of the screw rod two (53) extends outwardly from the end away from the bevel gear one (22) and is fixedly connected with a motor two (54), a scissor frame (55) is rotatably connected to the outer contour of each of the sliding blocks (52) through a pin shaft, the bottom corners of the scissor frames (55) are fixedly connected to the top ends of the four beam bars of the cross beam (1) respectively, the top ends of the scissor frames (55) are fixedly connected to the four corners of the bottom end of the workbench (4) respectively, a compensation spring one (56) is fixedly connected in the inner part of each of the fixed frames (5) and is sleeved on the outer contour of the screw rod two (53), and the end of each of the compensation spring one (56) away from the bevel gear one (22) is fixedly connected to the outer contour of the sliding block (52).

7. A roof hanger adjustable base according to claim 1, wherein: The balance mechanism is provided with four groups and is fixedly connected in the grooves formed by the adjacent beam bars and the diagonal braces (11) of the cross beam (1) respectively, the top end of each of the bases (6) is slidably connected with a hydraulic rod (61), the top end of each of the hydraulic rods (61) is fixedly connected with a top plate (62), a compensation spring two (63) is fixedly connected between the bottom end of each of the top plates (62) and the top end of the base (6) and is sleeved on the outer contour of the hydraulic rod (61), a fixed pin one (64) is fixedly connected to the outer contour of each of the top plates (62), the other end of the fixed pin one (64) is rotatably connected with a sleeve ring one (65), a fixed pin two (66) is fixedly connected to the outer contour of the sleeve ring one (65), the other end of the fixed pin two (66) is rotatably connected with a sleeve ring two (67), the top end of the sleeve ring two (67) is fixedly connected to the bottom end of the workbench (4), and the fixed pin one (64) and the sleeve ring one (65) are cross-connected.

8. A support method of a roof hoist adjustable foundation, applied to the roof hoist adjustable foundation of any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1, inner support positioning: first, the cross beam (1) is arranged at the center position of the roof, the inner support mechanism is started, the inner support mechanism is synchronously extended from the four beam bars of the cross beam (1), and the inner support mechanism is abutted against the peripheral wall of the roof, the cross beam (1) is self-centered and self-locked through the limiting of the peripheral wall of the roof; S2, pressure compensation: after the inner support mechanism abuts against the peripheral wall of the roof, the compensation mechanism automatically works, the excessive outward supporting force is converted into downward pressure on the roof, the concrete strength of the peripheral wall of the roof is avoided from being affected by the excessive outward supporting force, and the downward pressure is used to resist the overturning moment in the hoisting process; S3, angle adjustment: when the roof appears uneven settlement, the horizontal degree adjustment of the workbench (4) is completed through the variable angle mechanism, so that the workbench (4) always maintains a horizontal angle, and when the roof crane is arranged at the top end of the workbench (4), the roof crane always maintains verticality. S4, load uniform distribution: in the adjustment process of the variable angle mechanism, the balancing mechanism works synchronously, realizes the support effect of the workbench (4) at the same time, uniformly distributes the load of the workbench (4), and avoids the structure fracture caused by load concentration.

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