An automatic overturning device for fabricated precast columns and a method of using the same

Abstract

The application discloses an automatic overturning device for fabricated prefabricated columns and a use method thereof, and the automatic overturning device comprises a bottom bracket placed on the ground and a hydraulic station, a supporting frame is arranged above the bottom bracket, two symmetrical fixing seats are fixedly installed on the right side of the top of the bottom bracket, a fixing rod is rotationally connected with the two fixing seats, a rotating seat is fixedly connected with the surface of the fixing rod, and the rotating seat is installed at the right side of the bottom of the supporting frame through the fixing rod. The prefabricated column is placed in the supporting frame in a hoisting mode, then the hydraulic station drives two hydraulic cylinders to synchronously elongate, the rotating seat and the fixing rod are made to rotate through the mounting seat and the connecting seat, the rotating seat and the fixing rod are rotated from a horizontal state to a vertical state, and then the prefabricated column is rotated to the vertical state, and the prefabricated column does not appear to be displaced in the supporting frame during the rotation, protection is provided for the overturning of the prefabricated column, the hydraulic cylinder can push to realize the overturning of the fabricated prefabricated column, and the purpose of reducing the operation risk is achieved.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated building technology, and in particular relates to an automatic flipping device for prefabricated columns. Background Technology

[0002] With the continuous development of prefabricated building technology, precast concrete components are widely used in industrial and civil buildings. Due to their large cross-sectional dimensions, dense internal reinforcement, and overall reinforced concrete structure, precast concrete columns typically have a significant weight. During the production, curing, and transportation stages, precast columns are generally stored and transported in a horizontal position for ease of demolding, stacking, and vehicle transport. Once transported to the construction site, before formal installation, the columns must be adjusted from a horizontal to an vertical position before being hoisted into place. Therefore, the rotation and hoisting process of precast columns has become one of the key procedures in prefabricated construction.

[0003] In existing construction techniques, the flipping of precast columns typically involves placing thick scaffolding boards at the base of the column, supplemented by rubber tires as cushioning and fulcrums. A tower crane, in conjunction with a flipping support, flips the horizontal precast column approximately 90 degrees, transitioning it from a horizontal to a near-vertical position. After flipping, shackles or hooks are used to connect wire ropes to pre-installed lifting components on the precast column, which is then lifted by the tower crane. During lifting, the precast column is usually first raised to approximately 500mm above the ground to inspect its appearance, lifting rings, and connections. Lifting can only continue after confirming everything is in order. The entire lifting process requires smooth operation, employing a slow, steady lift and gradual lowering method, with the lifting speed increasing gradually to avoid sudden acceleration or skipping gears. Once the precast column is lifted to the installation working surface, a bottom positioning device, combined with manual assistance, guides it to maintain a stable, horizontal position. The pre-installed reinforcing bars are then accurately inserted into the grout sleeves of the lower structure, completing the initial positioning.

[0004] However, the aforementioned existing technologies still present the following technical problems in actual construction. First, during the flipping process of precast columns, the precast columns have a large overall weight and inertia, and their posture changes are affected by various factors, making it difficult to control them consistently according to the predetermined direction and trajectory, resulting in poor controllability of the flipping process. Second, the rubber tires, which serve as the flipping fulcrum, are prone to compression deformation under stress, especially when the center of gravity of the precast column shifts. In such cases, the rubber tires may suddenly roll or slip, causing the precast column to lose control of its posture momentarily. This sudden slippage not only affects the stability of the flipping operation but may also cause the precast column to collide with surrounding components or personnel, posing a significant safety hazard. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic flipping device for prefabricated columns. The technical problems to be solved are that the prefabricated columns have a large overall weight and inertia, poor controllability of position and posture during the flipping process, and the prefabricated columns are prone to losing control of their posture, which poses a significant safety hazard.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: An automatic flipping device for prefabricated columns includes a base bracket placed on the ground and a hydraulic station. A support frame is provided above the base bracket. Two symmetrical fixed seats are fixedly installed on the right side of the top of the base bracket. The two fixed seats are rotatably connected to a fixed rod. A rotating seat is fixedly connected to the surface of the fixed rod. The rotating seat is installed on the right side of the bottom of the support frame through the fixed rod. A prefabricated column is placed in the inner cavity of the support frame. A long rod is installed through the right side of the surface of the base bracket. Two symmetrical hydraulic cylinders are provided on the surface of the long rod. A rotating sleeve that can rotate on the surface of the long rod is fixedly connected to the right side of the hydraulic cylinder. Two symmetrical mounting seats are fixedly installed at the bottom of the support frame. A connecting seat is welded to the bottom of the mounting seat. The output end of the hydraulic cylinder is rotatably connected to the connecting seat through a rotating shaft.

[0007] The present invention provides an automatic tilting device for prefabricated columns as described above, further comprising: a baffle plate fixedly installed at the bottom of the inner cavity of the support frame, and the prefabricated column placed on top of the baffle plate.

[0008] The present invention provides an automatic tilting device for prefabricated columns as described above, further comprising: two lifting rings pre-embedded inside the prefabricated column, and a movable groove for the lifting rings to move on the top of the support frame.

[0009] The present invention provides an automatic tilting device for prefabricated columns as described above, further comprising: a plurality of pads fixedly connected to the left side of the top of the base bracket, the top of the pads abutting against the bottom of the support frame.

[0010] The present invention provides an automatic tilting device for prefabricated columns as described above, further comprising: two embedding grooves at the bottom of the support frame; the mounting base being embedded in the inner cavity of the embedding groove; two symmetrical long bolts being provided through the mounting base; and the mounting base being fixedly installed in the inner cavity of the embedding groove by the two long bolts.

[0011] The automatic flipping device for prefabricated columns described above further includes: a washer ring fitted on the surface of the long rod on both the front and rear sides of the rotating sleeve, and a first nut threaded onto the surface of the long rod on one side of the washer ring.

[0012] The present invention provides an automatic tilting device for prefabricated columns as described above, further comprising: a through hole for a long rod to pass through on the base bracket; both ends of the long rod are threaded with a second nut; one side of the second nut abuts against the outside of the base bracket.

[0013] The present invention provides an automatic tilting device for prefabricated columns as described above, further comprising: two symmetrical pads fixedly connected to the right end of the top of the base bracket, and the support frame being adapted to the pads.

[0014] This invention also provides a method for using an automatic tilting device for prefabricated columns, wherein the automatic tilting device for prefabricated columns is any one of the above-mentioned automatic tilting devices for prefabricated columns; the method includes the following steps: the prefabricated column is lifted and moved horizontally by connecting the hook and the lifting ring of the crane, and the prefabricated column is placed horizontally in the inner cavity of the support frame. During this process, the two hydraulic cylinders are extended by operating the hydraulic station. The hydraulic cylinders cause the support frame to slowly rise through the connecting seat and the mounting seat. The support frame then drives the rotating seat to rotate on the surface of the fixed rod until the support frame rotates to a predetermined vertical or near-vertical state. At this time, the right side of the support frame is attached to the pad plate to ensure the stability of the support frame. The prefabricated column is then in an upright state under the rotation of the support frame. Then, the prefabricated column is vertically lifted and installed in place.

[0015] The beneficial effects of this invention are: 1. This invention places the precast column in a support frame via hoisting. Then, a hydraulic station drives two hydraulic cylinders to extend synchronously, causing the rotating seat and fixed rod to rotate from a horizontal to a vertical position via the mounting base and connecting seat. This rotates the precast column to a predetermined position without displacement within the support frame, providing protection for its rotation. This achieves the goal of using hydraulic cylinders to rotate the precast column, reducing operational risks. In other words, this invention solves the technical problems of the precast column's large overall weight and inertia, poor controllability of its position and attitude during rotation, and the risk of loss of control over its posture, posing significant safety hazards.

[0016] 2. The present invention, through the setting of baffles, can support and block the precast columns, effectively preventing some broken concrete from the surface of the precast columns from entering below, and playing a protective role for the transmission structure below the support frame.

[0017] 3. By using the lifting ring and the movable groove in combination, the lifting rope of the crane can be installed on the lifting ring, so that the precast column can be horizontally lifted and placed into the inner cavity of the support frame. The lifting ring on the precast column can pass through the movable groove until the end of the precast column abuts against the side of the inner cavity of the support frame. Attached Figure Description

[0018] The advantages of the present invention, both above and / or other aspects, will become clearer and more readily understood through the following detailed description taken in conjunction with the accompanying drawings, which are merely illustrative and do not limit the invention, wherein: Figure 1 A perspective view of an embodiment of an automatic flipping device for prefabricated columns; Figure 2 This is a three-dimensional disassembled schematic diagram of the support frame and the base bracket according to an embodiment of the present invention; Figure 3 This is a three-dimensional disassembled schematic diagram of the base bracket and hydraulic cylinder according to an embodiment of the present invention; Figure 4 This is a three-dimensional schematic diagram of a support frame according to an embodiment of the present invention.

[0019] The following is a list of components represented by each label in the attached diagram: 1. Base bracket, 2. Hydraulic station, 3. Support frame, 4. Fixed seat, 5. Fixed rod, 6. Rotating seat, 7. Precast column, 8. Long rod, 9. Hydraulic cylinder, 10. Rotating sleeve, 11. Mounting seat, 12. Connecting seat, 13. Baffle, 14. Lifting ring, 15. Movable groove, 16. Pad, 17. Embedded groove, 18. Long bolt, 19. Washer ring, 20. First nut, 21. Through hole, 22. Second nut, 23. Pad plate. Detailed Implementation

[0020] In the following description, embodiments of the automatic tilting device for prefabricated columns according to the present invention will be described with reference to the accompanying drawings.

[0021] The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the invention, and are illustrative and exemplary, and should not be construed as limiting the implementation or scope of the invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0022] The accompanying drawings in this specification are schematic diagrams to aid in illustrating the concept of the invention, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly demonstrate the structure of the components in the embodiments of the invention, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0023] The following combination Figure 1-4This invention describes an embodiment of an automatic tilting device for precast columns, comprising a base bracket 1 and a hydraulic station 2 placed on the ground. The base bracket 1 is preferably a welded steel frame structure, whose bottom can be placed entirely on a concrete surface or a hardened surface at the construction site to ensure overall load-bearing strength and stability. A support frame 3 is provided above the base bracket 1, preferably a rectangular frame structure, the dimensions of which are set according to the cross-sectional dimensions and length of the precast column 7. Two symmetrical pads 23 are fixedly connected to the right end of the top of the base bracket 1. The support frame 3 is adapted to the pads 23. The pads 23 can be steel plates or composite pads covered with a wear-resistant rubber layer, used to provide reliable limiting and support when the support frame 3 rotates to a vertical position, avoiding hard metal-to-metal collisions. Two symmetrical fixed seats 4 are fixedly installed on the right side of the top of the base bracket 1. The two fixed seats 4 are rotatably connected to a fixed rod 5. A rotating seat 6 is fixedly connected to the surface of the fixed rod 5. The rotating seat 6 is preferably a sleeve-type structure, so that the rotating seat 6 rotates synchronously when the fixed rod 5 rotates. Multiple pads 16 are fixedly connected to the left side of the top of the base bracket 1. The top of the pads 16 abuts against the bottom of the support frame 3. The multiple pads 16 are spaced apart along the length of the support frame 3 to support it when it is in a horizontal initial state, ensuring a stable horizontal posture and facilitating the placement of the precast column 7. The rotating seat 6 is installed on the right side of the bottom of the support frame 3 via the fixed rod. The precast column 7 is placed inside the cavity of the support frame 3. The precast column 7 can be a reinforced concrete precast column, and its cross-sectional shape is not limited to rectangle; it can also be square, polygonal, or other common structural forms. A baffle 13 is fixedly installed at the bottom of the inner cavity of the support frame 3. The precast column 7 is placed on top of the baffle 13. The baffle 13 can support and block the precast column 7, effectively preventing some broken concrete from entering below and protecting the transmission structure below the support frame 3. Two lifting rings 14 are embedded in the precast column 7. The top of the support frame 3 is provided with a movable groove 15 for the lifting rings 14 to move. By using the lifting rings 14 and the movable groove 15 together, the hoisting rope of the crane can be installed on the lifting rings 14, so that the precast column 7 can be lifted horizontally. The precast column 7 is placed horizontally into the inner cavity of the support frame 3. The lifting rings 14 on the precast column 7 can pass through the movable groove 15 until the end of the precast column 7 abuts against the side of the inner cavity of the support frame 3, thereby forming a preliminary limiting and positioning of the precast column 7 during the placement process.

[0024] A long rod 8 is mounted through the right side of the base bracket 1. A through hole 21 is provided on the base bracket 1 for the long rod 8 to pass through. Both ends of the long rod 8 are threaded with second nuts 22. One side of the second nut 22 abuts against the outside of the base bracket 1. Through the cooperation of the second nut 22 and the base bracket 1, the long rod 8 can be axially fixed to the base bracket 1. Two symmetrical hydraulic cylinders 9 are provided on the surface of the long rod 8. A rotating sleeve 10, which can rotate on the surface of the long rod 8, is fixedly connected to the right side of each hydraulic cylinder 9. The rotating sleeve 10 and the long rod 8 form a rotational engagement relationship. Both the front and rear sides of the rotating sleeve 10 are provided with washers 19 that are fitted onto the surface of the long rod 8. One side of the washer 19 is provided with a first nut 20 that is threaded onto the surface of the long rod 8. Through the cooperation of the washer 19 and the first nut 20, when the rotating sleeve 10 is fitted onto the surface of the long rod 8, the washer 19 and the first nut 20 can be installed to limit the position of the rotating sleeve 10 on the long rod 8 and prevent it from moving freely. Furthermore, when the rotating sleeve 10 rotates on the long rod 8, it will not affect its normal rotation. Two symmetrical mounting seats 11 are fixedly installed at the bottom of the support frame 3. Two embedding grooves 17 are opened at the bottom of the support frame 3. The mounting seats 11 are embedded in the inner cavity of the embedding grooves 17. Two symmetrical long bolts 18 are provided through the mounting seats 11. The mounting seats 11 are fixed in the inner cavity of the embedding grooves 17 by the two long bolts 18. A connecting seat 12 is welded to the bottom of the mounting seats 11. The output end of the hydraulic cylinder 9 is rotatably connected to the connecting seat 12 through a rotating shaft, so that the support frame 3 is allowed to change angle relative to the hydraulic cylinder 9 when the hydraulic cylinder 9 extends or retracts.

[0025] The method of using the automatic tilting device for prefabricated columns is as follows: The prefabricated column 7 is lifted and moved horizontally by connecting the hook of the crane to the lifting ring 14. Since the bottom of the support frame 3 is supported by four pads 16, the support frame 3 is kept in a horizontal state. The prefabricated column 7 is placed horizontally in the inner cavity of the support frame 3. During this period, the hydraulic station 2 is operated to control the extension of the two hydraulic cylinders 9. The hydraulic cylinders 9 cause the support frame 3 to slowly rise through the connecting seat 12 and the mounting seat 11. The support frame 3 then drives the rotating seat 6 to rotate on the surface of the fixed rod 5 until the support frame 3 rotates to a predetermined state of vertical or near vertical. At this time, the right side of the support frame 3 is attached to the two pads 23 to ensure the stability of the support frame 3. The prefabricated column 7 is then in an upright state under the rotation of the support frame 3. Then the prefabricated column 7 is vertically hoisted and installed in place.

[0026] It should be noted that the synchronous drive of hydraulic cylinders by hydraulic station 2 is an existing technology. For example, two hydraulic cylinders 9 are controlled by hydraulic station 2. Hydraulic station 2 has a basic hydraulic circuit. The flow rate of a single cylinder is finely adjusted by the proportional speed regulating valve and the solenoid throttle valve of hydraulic station 2 to compensate for the displacement difference. Hydraulic station 2 integrates a gear-type synchronous motor to distribute hydraulic oil equally to the two cylinders. It is suitable for lifting and pushing mechanisms that have certain requirements for synchronization to ensure the synchronization of the two cylinders.

[0027] In summary, this invention relates to an automatic tilting device for prefabricated columns. The prefabricated column 7 is placed in the support frame 3 via hoisting. Then, the hydraulic station 2 drives two hydraulic cylinders 9 to extend synchronously. This, in turn, causes the rotating seat 6 and the fixed rod 5 to rotate from a horizontal to a vertical position via the mounting seat 11 and connecting seat 12, thereby tilting the prefabricated column 7 to a vertical position. During this process, the prefabricated column 7 will not shift within the support frame 3, providing protection for the tilting of the prefabricated column 7. This achieves the goal of tilting the prefabricated column by hydraulic cylinder pushing, reducing operational risks.

[0028] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the invention to achieve the purpose of the invention.

Claims

1. An automatic tilting device for prefabricated columns, characterized in that, The system includes a base bracket (1) placed on the ground and a hydraulic station (2). A support frame (3) is provided above the base bracket (1). Two symmetrical fixed seats (4) are fixedly installed on the right side of the top of the base bracket (1). The two fixed seats (4) are rotatably connected to a fixed rod (5). A rotating seat (6) is fixedly connected to the surface of the fixed rod (5). The rotating seat (6) is installed on the right side of the bottom of the support frame (3) through the fixed rod. A precast column (7) is placed in the inner cavity of the support frame (3). A long rod (8) is installed through the right side of the surface of the base bracket (1). Two symmetrical hydraulic cylinders (9) are provided on the surface of the long rod (8). A rotating sleeve (10) that can rotate on the surface of the long rod (8) is fixedly connected to the right side of the hydraulic cylinder (9). Two symmetrical mounting seats (11) are fixedly installed at the bottom of the support frame (3). A connecting seat (12) is welded to the bottom of the mounting seat (11). The output end of the hydraulic cylinder (9) is rotatably connected to the connecting seat (12) through a rotating shaft.

2. The automatic tilting device for prefabricated columns according to claim 1, characterized in that, A baffle (13) is fixedly installed at the bottom of the inner cavity of the support frame (3), and the precast column (7) is placed on top of the baffle (13).

3. The automatic tilting device for prefabricated columns according to claim 2, characterized in that, The precast column (7) has two pre-embedded lifting rings (14), and the top of the support frame (3) is provided with a movable groove (15) for the lifting rings (14) to move.

4. The automatic tilting device for prefabricated columns according to claim 3, characterized in that, Multiple pads (16) are fixedly connected to the left side of the top of the base bracket (1), and the top of the pads (16) rests against the bottom of the support frame (3).

5. The automatic tilting device for prefabricated columns according to claim 4, characterized in that, The bottom of the support frame (3) has two embedded grooves (17). The mounting base (11) is embedded in the inner cavity of the embedded groove (17). Two symmetrical long bolts (18) are provided through the mounting base (11). The mounting base (11) is fixedly installed in the inner cavity of the embedded groove (17) by the two long bolts (18).

6. The automatic tilting device for prefabricated columns according to claim 5, characterized in that, Both the front and rear sides of the rotating sleeve (10) are provided with washers (19) that are sleeved on the surface of the long rod (8), and one side of the washers (19) is provided with a first nut (20) that is threaded onto the surface of the long rod (8).

7. The automatic tilting device for prefabricated columns according to claim 6, characterized in that, The base bracket (1) has a through hole (21) for the long rod (8) to pass through. Both ends of the surface of the long rod (8) are threaded with a second nut (22), and one side of the second nut (22) abuts against the outside of the base bracket (1).

8. The automatic tilting device for prefabricated columns according to claim 7, characterized in that, Two symmetrical pads (23) are fixedly connected to the right end of the top of the base bracket (1), and the support frame (3) is adapted to the pads (23).

9. A method of using an automatic tilting device for prefabricated columns, characterized in that, The automatic tilting device for prefabricated columns is the automatic tilting device for prefabricated columns as described in any one of claims 1 to 8; the method of use includes the following steps: the prefabricated column (7) is lifted and moved horizontally by connecting the hook of the crane to the lifting ring (14), and the prefabricated column (7) is placed horizontally in the inner cavity of the support frame (3). During this period, the two hydraulic cylinders (9) are extended by operating the hydraulic station (2). The hydraulic cylinders (9) make the support frame (3) slowly rise through the connecting seat (12) and the mounting seat (11). The support frame (3) drives the rotating seat (6) to rotate on the surface of the fixed rod (5) until the support frame (3) rotates to a predetermined state of vertical or near vertical. At this time, the right side of the support frame (3) is attached to the pad (23) to ensure the stability of the support frame (3). The prefabricated column (7) is in an upright state under the rotation of the support frame (3). Then the prefabricated column (7) is vertically lifted and installed in place.

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