An automatic jacking and overturning device for a segmental diaphragm wall component and a construction method

Abstract

The application discloses an automatic jacking and overturning device for assembled diaphragm wall components and a construction method, and the device comprises the following parts: a multifunctional chassis for overall position adjustment; an overturning bracket for single-degree-of-freedom overturning on the upper end of the multifunctional chassis; a multi-stage telescopic hydraulic jacking device serving as an overturning driving element of the overturning bracket; an overturning bearing connecting the multifunctional chassis and the overturning bracket; a circular hinged structure connecting the multi-stage telescopic hydraulic jacking device; and a construction method comprising the following steps: assembling and debugging the overturning device; hoisting the component into the overturning bracket, replacing the hoisting point, connecting a hoisting cable sling to the hoisting point on the top of the prefabricated wall; jacking at a slow and uniform speed, synchronously lifting the crawler crane, and pausing for inspection when the bracket is overturned to 15 degrees; continuing to jack, and overturning the bracket to a 70-degree position; slowly lifting and rotating the crawler crane to hoist the component away from the overturning bracket; and returning to the initial position. The application realizes large-angle posture overturning of super-large and super-heavy prefabricated components.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically relating to an automatic lifting and turning device and construction method for prefabricated diaphragm wall components. Background Technology

[0003] Currently, the common practice for lifting and rotating prefabricated diaphragm wall components is to use two large crawler cranes in tandem for hoisting and then straightening them in mid-air. However, this method suffers from high costs, demanding space requirements, and significant efficiency and safety risks. Specifically, large crane rentals are expensive, dual-crane operation requires ample working space, and the coordinated operation of both cranes is complex, demanding high precision and posing safety risks. These high costs, site limitations, and operational complexity severely restrict the widespread application of prefabricated diaphragm wall technology in large-scale projects, particularly in space-constrained urban core areas.

[0004] Therefore, in response to the changes in posture of prefabricated components such as prefabricated diaphragm walls during construction, especially the need for rotation, it is necessary to develop an automated device that can adapt to confined spaces and complete the active, rapid, and safe rotation of prefabricated components with just a single conventional crane. This would replace the traditional, outdated process that relies on multiple hoisting operations to achieve rotation with a highly efficient and safe dedicated device. Summary of the Invention

[0005] This invention is proposed to solve the problems existing in the prior art, and its purpose is to provide an automatic lifting and turning device and construction method for prefabricated diaphragm wall components.

[0006] The technical solution of this invention is: an automatic lifting and tilting device for prefabricated diaphragm wall components, comprising: The multi-functional chassis allows for overall position adjustment, while its upper part provides a mounting base for flipping operations; The flip bracket allows for single-degree-of-freedom flipping on the upper part of the multi-functional chassis. A multi-stage telescopic hydraulic jacking device serves as the tilting drive for the tilting bracket; The tilting bearing connects the multi-functional chassis and the tilting bracket, allowing the tilting bracket to tilt under the constraint of the tilting bearing. The circular hinge structure is installed in the tilting bracket and the multi-functional chassis respectively. The two circular hinge structures convert the linear motion of the multi-stage telescopic hydraulic jacking device into the rotation of the tilting bracket.

[0007] Furthermore, the flip bracket has an internal cavity for accommodating the prefabricated diaphragm wall component; a bottom support plate is provided on one side of the flip bearing of the flip bracket, which holds the prefabricated diaphragm wall component during the flipping process; lateral limiting plates are provided on both sides of the flip bracket to restrict the lateral movement of the prefabricated diaphragm wall component during the flipping process.

[0008] Furthermore, the flip bracket is provided with an inverted V-shaped frame, the opening of which faces the multi-functional chassis, and the bottom of which is provided with a circular hinge structure.

[0009] Furthermore, the other end of the circular hinge structure in the inverted V-shaped frame is connected to the telescopic end of the multi-stage telescopic hydraulic jacking device, and the inverted V-shaped frame and the telescopic end of the multi-stage telescopic hydraulic jacking device form an upper rotating pair.

[0010] Furthermore, the upper end of the multi-functional chassis is provided with a circular hinge structure, and the mounting end of the multi-stage telescopic hydraulic jacking device is connected to the circular hinge structure. The multi-stage telescopic hydraulic jacking device, the circular hinge structure, and the multi-functional chassis form a lower rotating pair.

[0011] Furthermore, the multi-functional chassis includes a first chassis section, a second chassis section, and a third chassis section, and the first chassis section and the second chassis section, as well as the second chassis section and the third chassis section, are connected by chassis section connectors.

[0012] Furthermore, the flip bracket includes a first bracket section and a second bracket section, which are connected as a whole by a bracket section connector.

[0013] Furthermore, the multi-functional chassis is equipped with a wheel set at its bottom, which enables the multi-functional chassis to be moved as a whole.

[0014] A construction method for an automatic lifting and tilting device for prefabricated diaphragm wall components includes the following steps: A. Assemble and debug the tilting device on the construction site, and move it to the hoisting position; B. Use a crawler crane to horizontally lift the prefabricated diaphragm wall components into the tilting bracket, change the lifting points, and connect slings and lifting devices to the lifting points on the top of the prefabricated wall. C. After the preparatory work is completed, start the hydraulic pump station and the multi-stage telescopic hydraulic jacking device slowly and uniformly lifts the crane. The crawler crane follows and lifts synchronously. When the bracket is rotated to 15°, stop the inspection. D. Continue lifting, with the crawler crane following and lifting synchronously, until the bracket is rotated to a 70° position; E. The crawler crane slowly lifts and rotates to lift the prefabricated diaphragm wall component away from the tilting bracket; F. The multi-stage telescopic hydraulic jacking device retracts, and the tilting bracket slowly and uniformly descends, gradually returning to its initial horizontal state.

[0015] The beneficial effects of this invention are as follows: This invention enables large-angle tilting of ultra-large and ultra-heavy prefabricated components. Compared with the traditional method of using two crawler cranes to lift and straighten in the air, it saves site space and rental costs, and reduces the difficulty and safety risks of hoisting.

[0016] This invention adopts modular assembly, and can be expanded and transformed into a second form for prefabricated components of different lengths, widths and weights, making it more adaptable. The multiple modules are easy to disassemble and transport.

[0017] This invention, when used with a single crane, can actively, quickly, and safely rotate precast components, replacing the outdated process that relies on multiple lifting operations to achieve rotation. This improves construction efficiency, shortens the construction period, and reduces costs. Attached Figure Description

[0018] Figure 1 This is a structural layout diagram of the present invention; Figure 2 This is a diagram showing the arrangement of the bracket structure in this invention; Figure 3 This is a schematic diagram illustrating the movement and repositioning of the invention within the construction site; Figure 4 This is a schematic diagram of the invention flipped 15°; Figure 5 This is a schematic diagram of the invention flipped 45°; Figure 6 This is a schematic diagram of the invention being flipped 70°; Figure 7 This is a structural arrangement diagram of the second form of the present invention; Figure 8 This is a schematic diagram of the second form of the present invention, rotated 70°. The components include: 1. Multifunctional chassis; 101. First chassis section; 102. Second chassis section; 103. Third chassis section; 104. Vertical support legs; 105. Wheelset; 106. Chassis section connecting parts; 2. Tilting bracket; 201. First bracket section; 202. Second bracket section; 203. Inverted V-shaped frame; 204. Lateral limiting plate; 205. Bottom support plate; 206. Bracket section connecting parts; 207. Lateral limiting plate bolt holes; 3. Multi-stage telescopic hydraulic jacking device; 4. Tilting bearing; 5. Circular hinge structure; 6. Prefabricated diaphragm wall components. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 8 As shown, an automatic lifting and tilting device for prefabricated diaphragm wall components includes: The multi-functional chassis 1 allows for overall position adjustment, while its upper part provides a mounting base for flipping operations; The flip bracket 2 flips over with a single degree of freedom on the upper part of the multi-functional chassis 1. The multi-stage telescopic hydraulic jacking device 3 serves as the tilting drive component for the tilting bracket 2; The flip bearing 4 connects the multi-functional chassis 1 and the flip bracket 2, so that the flip bracket 2 can flip under the constraint of the flip bearing 4. The circular hinge structure 5 is installed in the flipping bracket 2 and the multi-functional chassis 1 respectively. The two circular hinge structures 5 convert the linear motion of the multi-stage telescopic hydraulic jacking device 3 into the rotation of the flipping bracket.

[0020] Furthermore, the flip bracket 2 has an internal receiving cavity that accommodates the prefabricated floor ties 6; a bottom support plate 205 is provided on one side of the flip bearing 4, which holds the prefabricated floor ties 6 during the flipping process; lateral limiting plates 204 are provided on both sides of the flip bracket 2 to restrict the lateral movement of the prefabricated floor ties 6 during the flipping process.

[0021] Furthermore, the flip bracket 2 is provided with an inverted V-shaped frame 203, the opening of which faces the multi-functional chassis 1, and a circular hinge structure 5 is provided at the bottom of which.

[0022] Furthermore, the other end of the circular hinge structure 5 in the inverted V-shaped frame 203 is connected to the telescopic end of the multi-stage telescopic hydraulic jacking device 3, and the inverted V-shaped frame 203 and the telescopic end of the multi-stage telescopic hydraulic jacking device 3 form an upper rotating pair.

[0023] Furthermore, the upper end of the multi-functional chassis 1 is provided with a circular hinge structure 5, and the mounting end of the multi-stage telescopic hydraulic jacking device 3 is connected to the circular hinge structure 5. The multi-stage telescopic hydraulic jacking device 3, the circular hinge structure 5, and the multi-functional chassis 1 form a lower rotating pair.

[0024] Furthermore, the multi-functional chassis 1 includes a first chassis section 101, a second chassis section 102, and a third chassis section 103. The first chassis section 101 and the second chassis section 102, as well as the second chassis section 102 and the third chassis section 103, are connected by chassis section connectors 106.

[0025] Furthermore, the flip bracket 2 includes a first bracket section 201 and a second bracket section 202, which are connected as a whole by a bracket section connector 206.

[0026] Furthermore, the multi-functional chassis 1 is provided with a wheel set 105 at the bottom, which can carry the multi-functional chassis 1 for overall transfer.

[0027] Specifically, the multi-functional chassis 1 also includes vertical support legs 104, which can be used to fix the multi-functional chassis 1. The chassis 1 can be moved and repositioned within the construction site via wheel sets 105, and the vertical support legs 104 are connected to the hardened ground via ground anchor bolts.

[0028] Specifically, the chassis section connector 106 and the bracket section connector 206 are connected by bolts and gusset plates.

[0029] Specifically, the flip bracket 2 also includes a lateral limiting plate 204, which provides lateral limiting and is installed and fixed through the lateral limiting plate bolt holes 207.

[0030] Specifically, the first section 201 and the second section 202 of the bracket are welded together from steel crossbeams and longitudinal beams, with a lateral limiting plate 204 installed on the side. At the same time, an inverted V-shaped frame 203 is welded into the first section 201 of the bracket.

[0031] Specifically, the multi-stage telescopic hydraulic jacking device 3 includes multi-stage hydraulic cylinders, hydraulic pump stations, and hydraulic valves. The two ends of the multi-stage telescopic hydraulic jacking device 3 are connected to the multi-functional chassis 1 and the flipping bracket 2 respectively through circular hinge structures 5. The hydraulic jacking device provides the flipping torque, which is applied to the flipping bracket, thereby realizing the posture flipping of the prefabricated diaphragm wall component it carries.

[0032] Specifically, the circular hinge structure 5 is used to connect the multi-functional chassis 1 and the flipping bracket 2. The two rotate freely as the flipping angle changes, ensuring that the pushing force output by the multi-stage telescopic hydraulic jacking device 3 is converted into the rotation of the flipping bracket 2.

[0033] Specifically, the circular hinge structure 5 is located at the center of the inverted V-shaped frame 203.

[0034] Specifically, the chassis segment connector 106 in the multi-functional chassis 1 and the bracket segment connector 206 in the flip bracket 2 are arranged in a staggered manner.

[0035] As another implementation method An automatic lifting and flipping device for prefabricated diaphragm wall components is designed for small prefabricated components. The multi-functional chassis 1 includes a first chassis section 101 and a second chassis section 102, but does not include a third chassis section 103. The flipping bracket 2 only includes a first bracket section 201. The above-mentioned segmentation saves space and facilitates disassembly and transportation.

[0036] Specifically, when the flipping bracket 2 is rotated to the 70° position, the multi-stage telescopic hydraulic jacking device 3 does not interfere with or collide with the inverted V-shaped frame 203.

[0037] A construction method for an automatic lifting and tilting device for prefabricated diaphragm wall components includes the following steps: A. Assemble and debug the tilting device on the construction site, and move it to the hoisting position; B. Use a crawler crane to horizontally lift the prefabricated diaphragm wall component 6 into the tilting bracket 2, change the lifting points, and connect slings and lifting devices to the lifting points at the top of the prefabricated wall. C. After the preparatory work is completed, start the hydraulic pump station and the multi-stage telescopic hydraulic jacking device 3 slowly and uniformly lifts the crane. The crawler crane follows and lifts synchronously. When the bracket is rotated to 15°, stop the inspection. D. Continue lifting, with the crawler crane following and lifting synchronously, until the bracket is rotated to a 70° position; E. The crawler crane slowly lifts and rotates, lifting the prefabricated diaphragm component 6 away from the tilting bracket 2; F. The multi-stage telescopic hydraulic jacking device 3 retracts, and the flipping bracket 2 slowly and uniformly descends, gradually returning to the initial horizontal state.

[0038] This invention enables large-angle tilting of ultra-large and ultra-heavy prefabricated components. Compared with the traditional method of using two crawler cranes to lift and straighten in the air, it saves site space and rental costs, and reduces the difficulty and safety risks of hoisting.

[0039] This invention adopts modular assembly, and can be expanded and transformed into a second form for prefabricated components of different lengths, widths and weights, making it more adaptable. The multiple modules are easy to disassemble and transport.

[0040] This invention, when used with a single crane, can actively, quickly, and safely rotate precast components, replacing the outdated process that relies on multiple lifting operations to achieve rotation. This improves construction efficiency, shortens the construction period, and reduces costs.

Claims

1. An automatic lifting and tilting device for prefabricated diaphragm wall components, characterized in that: include: The multi-functional chassis (1) allows for overall position adjustment, while its upper end provides an installation base for flipping actions; The flip bracket (2) is flipped in a single degree of freedom on the upper part of the multi-functional chassis (1); A multi-stage telescopic hydraulic jacking device (3) serves as the flipping drive for the flipping bracket (2); The flip bearing (4) connects the multi-functional chassis (1) and the flip bracket (2), so that the flip bracket (2) flips under the constraint of the flip bearing (4); The circular hinge structure (5) is installed in the flip bracket (2) and the multi-functional chassis (1) respectively. The two circular hinge structures (5) convert the linear motion of the multi-stage telescopic hydraulic jacking device (3) into the rotation of the flip bracket (2).

2. The automatic lifting and turning device for prefabricated diaphragm wall components according to claim 1, characterized in that: The flip bracket (2) has an internal cavity for accommodating the prefabricated diaphragm wall component (6); the flip bracket (2) is provided with a bottom support plate (205) on one side of the flip bearing (4), and the bottom support plate (205) holds the prefabricated diaphragm wall component (6) during the flipping process of the flip bracket (2); the flip bracket (2) is provided with lateral limiting plates (204) on both sides to restrict the lateral movement of the prefabricated diaphragm wall component (6) during the flipping process.

3. The automatic lifting and tilting device for prefabricated diaphragm wall components according to claim 1, characterized in that: The flip bracket (2) is provided with an inverted V-shaped frame (203), the opening of the inverted V-shaped frame (203) faces the multi-functional chassis (1), and the bottom of the inverted V-shaped frame (203) is provided with a circular hinge structure (5).

4. The automatic lifting and tilting device for prefabricated diaphragm wall components according to claim 3, characterized in that: The other end of the circular hinge structure (5) in the inverted V-shaped frame (203) is connected to the telescopic end of the multi-stage telescopic hydraulic jacking device (3), and the telescopic end of the inverted V-shaped frame (203) and the multi-stage telescopic hydraulic jacking device (3) form an upper rotating pair.

5. The automatic lifting and tilting device for prefabricated diaphragm wall components according to claim 4, characterized in that: The upper end of the multi-functional chassis (1) is provided with a circular hinge structure (5), and the mounting end of the multi-stage telescopic hydraulic jacking device (3) is connected to the circular hinge structure (5). The multi-stage telescopic hydraulic jacking device (3), the circular hinge structure (5), and the multi-functional chassis (1) form a lower rotating pair.

6. The automatic lifting and tilting device for prefabricated diaphragm wall components according to claim 1, characterized in that: The multi-functional chassis (1) includes a first chassis section (101), a second chassis section (102), and a third chassis section (103). The first chassis section (101) and the second chassis section (102), as well as the second chassis section (102) and the third chassis section (103), are connected by chassis section connectors (106).

7. The automatic lifting and tilting device for prefabricated diaphragm wall components according to claim 1, characterized in that: The flip bracket (2) includes a first bracket section (201) and a second bracket section (202), which are connected as a whole by a bracket section connector (206).

8. The automatic lifting and tilting device for prefabricated diaphragm wall components according to claim 1, characterized in that: The multi-functional chassis (1) is equipped with a wheel set (105) at the bottom, which can carry the multi-functional chassis (1) for overall transfer.

9. The construction method of the automatic lifting and turning device for prefabricated diaphragm wall components according to claim 1, characterized in that: Includes the following steps: A. Assemble and debug the tilting device on the construction site, and move it to the hoisting position; B. Use a crawler crane to horizontally lift the prefabricated diaphragm wall component (6) into the flipping bracket (2), change the lifting point, and connect the slings and lifting equipment at the top lifting point of the prefabricated wall; C. After the preparatory work is completed, start the hydraulic pump station and the multi-stage telescopic hydraulic jacking device (3) slowly and uniformly lifts the crane. The crawler crane follows and lifts synchronously. When the bracket is rotated to 15°, stop the inspection. D. Continue lifting, with the crawler crane following and lifting synchronously, until the bracket is rotated to a 70° position; E. The crawler crane slowly lifts and rotates to lift the prefabricated diaphragm component (6) away from the tilting bracket (2). F. The multi-stage telescopic hydraulic jacking device (3) retracts, and the flipping bracket (2) slowly and uniformly descends, gradually returning to the initial horizontal state.

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