Lifting appliance for underwater bearing platform pouring jacket bottom plate precast block

Abstract

The utility model discloses a lifting appliance for a bottom plate precast block of an underwater bearing platform pouring jacket. The lifting appliance comprises a lifting frame, four upper-stage lifting points, two groups of middle-stage lifting points and lower-stage lifting points, the hanging bracket comprises two main beams and two connecting beams which are bridged on the top surfaces of the two heads of the two main beams in a one-to-one correspondence manner; the four upper-stage lifting points are respectively fixed on the top surfaces of the two heads of the two connecting beams; the four upper-stage lifting points are respectively connected with the lifting hooks through upper-stage lifting belts; the two groups of intermediate lifting points are symmetrically fixed on the bottom surfaces of the two main beams; each group of intermediate lifting points comprises three three-lifting-point pieces and two seven-lifting-point pieces; the lower-stage lifting point is arranged on the top surface of the precast block and is connected with the two groups of middle-stage lifting points through a lower-stage lifting belt; the number of the lower-stage lifting points is three, four, five or eight; the center of the lifting hook, the centers of the four upper-stage lifting points and the gravity center of the prefabricated block are all located on the same vertical line. The lifting appliance disclosed by the utility model can meet the lifting requirements of prefabricated parts in all shapes, so that prefabricated blocks in all shapes are kept balanced and stable during lifting.

Description

Technical Field

[0001] The utility model relates to a hanger for prefabricated blocks of bottom plates of underwater bearing platform casings. Background Art

[0002] The casing used for underwater pedestal construction adopts a steel-concrete structure, that is, the casing bottom plate is prefabricated with reinforced concrete, and the casing side plates are steel side plates. Since the casing bottom plate is large in size and is a non-regular octagon with a skirt around the edge, the casing bottom plate is assembled on site from multiple prefabricated blocks. The prefabricated blocks at the edge of the casing bottom plate are irregularly shaped. Each prefabricated block covers 1-2 pile foundations, so 1-2 pile holes must be reserved on each prefabricated block. In the production process of these prefabricated blocks, lifting and transportation are often involved. Since these prefabricated blocks need to be placed on the pile foundations that have been set in the water when they are transported to the site, the parallelism between the prefabricated blocks and the water surface is required to be very high during the lifting process to achieve subsequent installation. The traditional method of lifting and transporting with a steel wire rope at both ends cannot ensure the balance of the special-shaped prefabricated blocks, resulting in tilting of the special-shaped prefabricated blocks, which is not conducive to the precise positioning and installation of the prefabricated blocks. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a hoist for underwater pedestal box bottom plate prefabricated blocks, which can meet the lifting requirements of prefabricated parts of all shapes and keep regular-shaped prefabricated blocks and irregular-shaped prefabricated blocks balanced and stable during lifting.

[0004] The purpose of the utility model is achieved as follows: a sling for a prefabricated block of a bottom plate of a submerged platform casing comprises a sling, four upper sling points, two sets of intermediate sling points and a lower sling point; wherein,

[0005] The hanger comprises two main beams arranged in parallel one behind the other and two connecting beams correspondingly connected to the top surfaces of the two ends of the two main beams;

[0006] The four upper lifting points are fixed on the top surfaces of the two ends of the two connecting beams and are located at the intersections of the two connecting beams and the two main beams. The four upper lifting points are connected to the hooks of the lifting equipment through upper lifting belts, so that the centers of the hooks and the centers of the four upper lifting points are located on the same vertical line.

[0007] Two groups of intermediate hanging points are symmetrically fixed on the bottom surfaces of the two main beams; each group of intermediate hanging points includes three three-hanging point pieces and two seven-hanging point pieces; the three three-hanging point pieces are fixed one by one on the bottom surfaces of the middle, the middle left and the middle right of the main beams, the three hanging point pieces located at the middle left and the three hanging point pieces at the middle right are symmetrical to the three hanging point pieces located at the middle, and the three hanging point pieces located at the middle left and the three hanging point pieces at the middle right are located one by one on the inner side of the two connecting beams; the two seven-hanging point pieces are symmetrically fixed on the left and right bottom surfaces of the main beams and are located one by one on the outer side of the two connecting beams;

[0008] The lower hanging points are arranged on the top surface of the prefabricated block and connected to the two sets of middle hanging points through the lower hanging belts; the number of the lower hanging points on the prefabricated block is three, four, five or eight;

[0009] The center of the hook, the centers of the four upper lifting points and the center of gravity of the precast block are all located on the same vertical line.

[0010] The above-mentioned lifting device for the prefabricated block of the bottom plate of the underwater platform casing, wherein the main beam and the connecting beam are both composed of two I-beams arranged side by side and assembled through a top connecting plate and a bottom connecting plate.

[0011] The above-mentioned lifting equipment for the prefabricated block of the bottom plate of the underwater pedestal casing, wherein the upper lifting point includes a bottom plate fixed on the top surface of the connecting beam, an upper ear plate fixed on the top surface of the bottom plate and provided with a lifting hole, and two pairs of upper supporting ribs horizontally spaced and symmetrically fixed between the two side surfaces of the upper ear plate and the top surface of the bottom plate.

[0012] The above-mentioned lifting device for the prefabricated block of the bottom plate of the underwater pedestal casing, wherein the three-hanging-point component includes a three-hole top plate fixed on the bottom surface of the main beam, a three-hole hanging plate fixed on the bottom surface of the three-hole top plate and having three hanging holes uniformly spaced horizontally, and four pairs of lower supporting ribs fixed between the two side surfaces of the three-hole hanging plate and the bottom surface of the three-hole top plate at intervals and symmetrically; the seven-hanging-point component includes a seven-hole top plate fixed on the bottom surface of the main beam, a seven-hole hanging plate fixed on the bottom surface of the seven-hole top plate and having seven hanging holes uniformly spaced horizontally, and eight pairs of lower supporting ribs fixed between the two side surfaces of the seven-hole hanging plate and the bottom surface of the seven-hole top plate at intervals and symmetrically; the spacing between the three hanging holes on the three-hole hanging plate is the same as the spacing between the seven hanging holes on the seven-hole hanging plate.

[0013] The above-mentioned hanger for the prefabricated block of the bottom plate of the underwater platform casing, wherein the hanger also includes two auxiliary beams spanning between the middle parts of the two connecting beams; each auxiliary beam is made of H-shaped steel.

[0014] The utility model is characterized in that the hoisting device for underwater pedestal box bottom plate prefabricated blocks can meet the hoisting requirements of prefabricated blocks of all shapes, and the intermediate hoisting points are distributed on the bottom surfaces of the two main beams of the hanger, and the positions of the intermediate hoisting points on the main beams can be adjusted according to the shapes of the hoisted prefabricated blocks and the arranged lower hoisting points, so as to match the positions of the lower hoisting points on the prefabricated blocks, so that prefabricated blocks with regular shapes and prefabricated blocks with irregular shapes can maintain balance and stability during hoisting, thus solving the problem that the existing hoisting devices are limited in their scope of application due to parameters such as module shape, size and weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a plan view of the lifting device for the prefabricated block of the bottom plate of the underwater platform casing of the utility model;

[0016] Figure 2 yes Figure 1 AA view in the figure;

[0017] Figure 3 yes Figure 1 BB view in the figure;

[0018] Figure 4 yes Figure 1 Enlarged view of the middle P site;

[0019] Figure 4a yes Figure 4 CC view in the figure;

[0020] Figure 4b yes Figure 4 DD view in the figure;

[0021] Figure 5a It is a connection relationship diagram when the lifting device of the utility model lifts a small rectangular prefabricated block;

[0022] Figure 5b This is a connection relationship diagram when the lifting device of the utility model lifts a large rectangular prefabricated block;

[0023] Figure 5c This is a connection relationship diagram when the lifting device of the utility model lifts a small special-shaped prefabricated block;

[0024] Figure 5d This is a connection relationship diagram when the lifting device of the utility model lifts a large special-shaped prefabricated block;

[0025] Figure 5e It is a connection relationship diagram when the lifting device of the utility model lifts a large prefabricated block. DETAILED DESCRIPTION

[0026] The utility model will be further described below in conjunction with the accompanying drawings.

[0027] See also Figures 1 to 4b The utility model discloses a lifting device for a prefabricated bottom plate block of an underwater bearing platform casing, comprising a hanger 1, four upper hanging points 2, two groups of intermediate hanging points and a lower hanging point.

[0028] The hanger 1 is of a nearly rectangular frame structure and includes two main beams 11 arranged in parallel, one in front of the other, and two connecting beams 12 correspondingly bridged on the top surfaces of the two ends of the two main beams 11; the main beams 11 and the connecting beams 12 are both composed of two I-beams arranged side by side, assembled through a top connecting plate and a bottom connecting plate; in order to improve the structural strength of the hanger 1, two secondary beams 13 are bridged at intervals between the middle parts of the two connecting beams 12, and each secondary beam 13 is made of H-shaped steel.

[0029] The four upper hanging points 2 are fixed one by one on the top surfaces of the two ends of the two connecting beams 12 and are located one by one at the intersection of the two connecting beams 12 and the two main beams 11; each upper hanging point 2 includes a bottom plate 20 fixed on the top surface of the connecting beam 12, an ear plate 21 fixed on the top surface of the bottom plate 20 and having a hanging hole, and two pairs of upper supporting ribs 22 fixed between the two side surfaces of the ear plate 21 and the top surface of the bottom plate 20 at intervals and symmetrically; the four upper hanging points 2 are respectively connected to the upper sling 4 through a shackle, and the upper sling 4 is connected to the hook of the lifting equipment so that the center of the hook and the center of the four upper hanging points 4 are located on the same vertical line.

[0030] Two groups of intermediate hanging points are symmetrically fixed on the bottom surfaces of the two main beams 11; each group of intermediate hanging points includes a middle three hanging point member 31a, a left three hanging point member 31b, a right three hanging point member 31c, a left seven hanging point member 32a and a right seven hanging point member 32b; wherein,

[0031] The middle three hanging point pieces 31a, the left three hanging point pieces 31b and the right three hanging point pieces 31c are fixed on the central bottom surface, the middle left bottom surface and the middle right bottom surface of the main beam 11 one by one, the left three hanging point pieces 31b and the right three hanging point pieces 31c are symmetrically located on the middle three hanging point pieces 31a, and the left three hanging point pieces 31b and the right three hanging point pieces 31c are located on the inner side of the two connecting beams 12 one by one; the structure and size of the middle three hanging point pieces 31a, the left three hanging point pieces 31b and the right three hanging point pieces 31c are the same and include a three-piece top plate 310 fixed on the bottom surface of the main beam 11, a three-hole hanging plate 3122 fixed on the bottom surface of the three-hole top plate 311 and having three hanging holes uniformly spaced horizontally, and four pairs of lower supporting ribs 300 fixed horizontally at intervals and symmetrically between the two side surfaces of the three-hole hanging plate 312 and the bottom surface of the three-hole top plate 310;

[0032] The left seven-hanging-point member 32a and the right seven-hanging-point member 32b are symmetrically fixed on the left bottom surface and the right bottom surface of the main beam 11 and are located one by one on the outside of the two connecting beams 12; the left seven-hanging-point member 32a and the right seven-hanging-point member 32b have the same structure and size and include a seven-hole top plate 321 fixed on the bottom surface of the main beam 11, a seven-hole hanging plate 321 fixed on the bottom surface of the seven-hole top plate 321 and having seven hanging holes uniformly spaced horizontally, and eight pairs of lower supporting ribs 300 that are horizontally spaced and symmetrically fixed between the two side surfaces of the seven-hole hanging plate 322 and the bottom surface of the seven-hole top plate 321.

[0033] The lower hanging point is arranged on the top surface of the prefabricated block and connected to the two sets of middle hanging points through the lower hanging belt 5; the number of lower hanging points on the prefabricated block is three, four, five or eight. The principle of arranging the lower hanging points on the prefabricated block is to arrange them according to their own shape and center of gravity, and avoid the reserved pile holes and other embedded parts.

[0034] The center of the hook, the centers of the four upper suspension points 2 and the center of gravity of the prefabricated block are all located on the same vertical line.

[0035] In one embodiment, the length of the main beam 11 is 9000mm, and the spacing between the two main beams 11 is 3650mm; the length of the connecting beam 12 is 4300mm, and the spacing between the two connecting beams 12 is 6000mm; the spacing between the two auxiliary beams 13 is 1400mm; the length of the seven-hole hanger plate 322 is 1000mm, the length of the three-hole hanger plate 312 is 500mm, the width of the seven-hole hanger plate 322 and the width of the three-hole hanger plate 312 are both 180mm; the spacing between the three hanging holes on the three-hole hanger plate 312 is 125mm; the spacing between the seven hanging holes on the seven-hole hanger plate 322 is also 125mm.

[0036] When the lifting device of the utility model is used to lift a small rectangular prefabricated block 6A with a small plane size and a pile hole, the center of gravity of the small rectangular prefabricated block is at the geometric center. Therefore, four lower hanging points are evenly distributed (at four corners) on the small rectangular prefabricated block 6A. According to the lengthwise spacing of the four lower hanging points, the hanging holes on the left three hanging point members 31b and the hanging holes on the right three hanging point members 31c on the two main beams 11 of the hanger 1 that are symmetrical to the hanging holes on the left three hanging point members 31b are selected (see FIG. Figure 5a ); four lower slings 5 ​​are connected one by one between the four lower hanging points of the small rectangular prefabricated block 6A and the four hanging holes of the hanger 1, so that the angles between the four lower slings 5 ​​and the top surface of the small rectangular prefabricated block 6A are consistent, that is, the center of the hook, the center of the hanger 1 and the center of gravity of the rectangular prefabricated block 6B can be located on the same vertical line, so that the small rectangular prefabricated block 6A can remain horizontal and stable during lifting.

[0037] When the lifting device of the utility model lifts a large rectangular prefabricated block 6B with a large plane size and two pile holes, the positions of the two pile holes on the large rectangular prefabricated block 6B are asymmetrical to the center line in the length direction (biased to the left), so that the center of gravity of the large rectangular prefabricated block 6B is not at the geometric center. Therefore, five lower-level lifting points are set on the large rectangular prefabricated block 6B, among which two lower-level lifting points are close to the rear long sides of the large rectangular prefabricated block 6B, and the connecting line of the two lower-level lifting points is parallel to the long sides of the large rectangular prefabricated block 6B, and the two lower-level lifting points are asymmetrical to the center line in the length direction of the large rectangular prefabricated block 6B; the two lower-level lifting points are connected to one of the lifting holes in the left three lifting point parts 31b and one of the lifting holes in the right seven lifting point parts 32b on the main beam 11 located at the rear side through two lower-level lifting belts 5, one of the lifting holes in the left three lifting point parts 31b and one of the lifting holes in the right seven lifting point parts 32b are connected one by one to the left three lifting point parts 31b and the right seven lifting point parts 32b. The spacing of one hanging hole in the member 32b is slightly larger than the spacing of the two lower hanging points; the other three lower hanging points are close to the front long side of the large rectangular prefabricated block 6B, and the connecting line of the three lower hanging points is parallel to the long side of the large rectangular prefabricated block 6B, the lower hanging point located in the middle is not on the center line of the length direction of the large rectangular prefabricated block 6B (biased to the right), and the other two lower hanging points are at the same distance from the lower hanging point in the middle, and the three lower hanging points are connected one by one to one with one hanging hole in the left seven hanging point member 32a, one hanging hole in the middle three hanging point member 31b and one hanging hole in the right seven hanging point member 32b on the main beam 11 located on the front side through three lower slings 5; the spacing of one hanging hole in the left seven hanging point member 32a, one hanging hole in the middle three hanging point member 31b and one hanging hole in the right seven hanging point member 32b is adapted to the spacing of the three lower hanging points (see Figure 5b ); In this way, when the large rectangular prefabricated block 6B is lifted, the center of the hook, the center of the hanger 1 and the center of gravity of the rectangular prefabricated block 6B can be located on the same vertical line, thereby enabling the large rectangular prefabricated block 6B to remain horizontal and stable during lifting.

[0038] When the lifting device of the utility model is used to lift a small special-shaped prefabricated block 7A having a pile hole but lacking a larger front left corner, the small special-shaped prefabricated block 7A is only provided with a lower hanging point at each of the three corners, and the connecting line of the three lower hanging points is an obtuse triangle with unequal sides, and the two lower hanging points are located at the rear left corner and the rear right corner of the small special-shaped prefabricated block 7A in a one-to-one correspondence, and the two lower hanging points are respectively connected to the middle hanging hole in the left three hanging point member 31a and the right hanging hole in the right three hanging point member 31c on the main beam 11 on the rear side in a one-to-one correspondence through a lower hanging belt 5, and the spacing between the middle hanging hole in the left three hanging point member 31a and the right hanging hole in the right three hanging point member 31c is adapted to the spacing between the two lower hanging points; the other lower hanging point is located at the front right corner of the small special-shaped prefabricated block 7A, and this lower hanging point is connected to the right hanging hole in the right three hanging point member 31c on the main beam 11 on the front side through a lower hanging belt 5 (see Figure 5c); In this way, when the small special-shaped prefabricated block 7A is lifted, the center of the hook, the center of the hanger 1 and the center of gravity of the small special-shaped prefabricated block 7A can be located on the same vertical line, thereby enabling the small special-shaped prefabricated block 7A to remain horizontal and stable during lifting.

[0039] When the lifting device of the utility model is used to lift a large special-shaped prefabricated block 7B having two pile holes but lacking a front left corner, the large special-shaped prefabricated block 7B is provided with a lower hanging point at the rear left corner and the rear right corner, and the two lower hanging points are connected one by one with a hanging hole in the left seven hanging point member 32a and a hanging hole in the right seven hanging point member 32b on the main beam 11 on the rear side through a lower hanging belt 5, and the spacing between the one hanging hole in the left seven hanging point member 32a and the one hanging hole in the right seven hanging point member 32b is adapted to the spacing between the two lower hanging points; the large special-shaped prefabricated block 7B is also provided with two lower hanging points at intervals in the front left middle part, and the two lower hanging points are connected to the right hanging hole and the right hanging hole in the middle three hanging point member 31b on the main beam 11 on the front side through a lower hanging belt 5 (see Figure 5d ); In this way, when the large special-shaped prefabricated block 7B is lifted, the center of the hook, the center of the hanger 1 and the center of gravity of the large special-shaped prefabricated block 7B can be located on the same vertical line, thereby enabling the large special-shaped prefabricated block 7B to remain horizontal and stable during lifting.

[0040] When the lifting device of the utility model is used to lift a large prefabricated block 8 with two pile holes, although the large prefabricated block 8 is a regular rectangular shape, it is relatively long, and the positions of the two pile holes are asymmetrical to the center line of the length direction (biased to the right), so that the center of gravity of the large prefabricated block 8 is not at the geometric center. Therefore, four lower hanging points are respectively arranged at the rear and front of the large prefabricated block 8, and the spacing between the two lower hanging points in the middle of the front and the spacing between the two lower hanging points in the middle of the rear are smaller, and the spacing between the two lower hanging points on both sides of the front and the two lower hanging points in the middle and the spacing between the two lower hanging points on both sides of the rear and the two lower hanging points in the middle are larger, and the four lower hanging points at the front are relatively large. Asymmetrically with the four lower hanging points at the rear, the four lower hanging points at the rear are connected one by one with the leftmost hanging hole among the left seven hanging points 32a, the left hanging hole among the left three hanging points 31b, the right hanging hole among the right three hanging points 31c, and the rightmost hanging hole among the right seven hanging points 32b on the main beam 11 at the rear side through a lower hanging belt 5, and the four lower hanging points at the front are connected one by one with the leftmost hanging hole among the left seven hanging points 32a, the left hanging hole among the left three hanging points 31b, the right hanging hole among the right three hanging points 31c, and the rightmost hanging hole among the right seven hanging points 32b on the main beam 11 at the front side through a lower hanging belt 5 (see Figure 5e ); In this way, when the large prefabricated block 8 is lifted, the center of the hook, the center of the hanger 1 and the center of gravity of the large prefabricated block 8 can be located on the same vertical line, thereby enabling the large prefabricated block 8 to remain horizontal and stable during lifting.

[0041] The utility model of the lifting device for underwater platform casing bottom plate prefabricated block is provided with a set of intermediate lifting points on each of the two main beams 11 to match with the lower lifting points at different positions on the prefabricated block. Therefore, one set of lifting devices can meet the lifting requirements of all prefabricated blocks, which can not only save costs but also reduce the working time of replacing the lifting devices.

[0042] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Technicians in the relevant technical field can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A sling for underwater cap casing bottom plate prefabricated blocks, comprising a hanger, four upper sling points, two sets of intermediate sling points and lower sling points; characterized in that: The hanger comprises two main beams arranged in parallel one behind the other and two connecting beams correspondingly connected to the top surfaces of the two ends of the two main beams; The four upper lifting points are fixed on the top surfaces of the two ends of the two connecting beams and are located at the intersections of the two connecting beams and the two main beams. The four upper lifting points are connected to the hooks of the lifting equipment through upper lifting belts, so that the centers of the hooks and the centers of the four upper lifting points are located on the same vertical line. Two groups of intermediate hanging points are symmetrically fixed on the bottom surfaces of the two main beams; each group of intermediate hanging points includes three three-hanging point pieces and two seven-hanging point pieces; the three three-hanging point pieces are fixed one by one on the bottom surfaces of the middle, the middle left and the middle right of the main beams, the three hanging point pieces located at the middle left and the three hanging point pieces at the middle right are symmetrical to the three hanging point pieces located at the middle, and the three hanging point pieces located at the middle left and the three hanging point pieces at the middle right are located one by one on the inner side of the two connecting beams; the two seven-hanging point pieces are symmetrically fixed on the left and right bottom surfaces of the main beams and are located one by one on the outer side of the two connecting beams; The lower hanging points are arranged on the top surface of the prefabricated block and connected to the two sets of middle hanging points through the lower hanging belts; the number of the lower hanging points on the prefabricated block is three, four, five or eight; The center of the hook, the centers of the four upper lifting points and the center of gravity of the precast block are all located on the same vertical line.

2. The sling for the prefabricated bottom plate of the underwater platform casing according to claim 1 is characterized in that: The main beam and the connecting beam are both formed by assembling two I-beams arranged side by side through a top connecting plate and a bottom connecting plate.

3. The lifting device for the prefabricated bottom plate of the underwater platform casing according to claim 1 is characterized in that: The upper hanging point includes a bottom plate fixed on the top surface of the connecting beam, an upper ear plate fixed on the top surface of the bottom plate and having a hanging hole, and two pairs of upper supporting ribs horizontally spaced and symmetrically fixed between the two side surfaces of the upper ear plate and the top surface of the bottom plate.

4. The sling for the prefabricated bottom plate of the underwater platform casing according to claim 1 is characterized in that: The three-hanging-point component includes a three-hole top plate fixed on the bottom surface of the main beam, a three-hole hanging plate fixed on the bottom surface of the three-hole top plate and having three hanging holes uniformly spaced horizontally, and four pairs of lower supporting ribs fixed between the two side surfaces of the three-hole hanging plate and the bottom surface of the three-hole top plate at intervals and symmetrically; the seven-hanging-point component includes a seven-hole top plate fixed on the bottom surface of the main beam, a seven-hole hanging plate fixed on the bottom surface of the seven-hole top plate and having seven hanging holes uniformly spaced horizontally, and eight pairs of lower supporting ribs fixed between the two side surfaces of the seven-hole hanging plate and the bottom surface of the seven-hole top plate at intervals and symmetrically; the spacing between the three hanging holes on the three-hole hanging plate is the same as the spacing between the seven hanging holes on the seven-hole hanging plate.

5. The lifting device for underwater cap casing bottom plate prefabricated block according to any one of claims 1 to 4, characterized in that: The hanger also includes two auxiliary beams spanning between the middle parts of the two connecting beams; each auxiliary beam is made of H-shaped steel.

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