Cantilever slab construction device

Abstract

The utility model relates to the technical field of bridge construction, in particular to a cantilever slab construction device. The cantilever slab construction device can be installed on a box girder, a cantilever slab is connected with the box girder, the cantilever slab construction device comprises a moving mechanism, a supporting mechanism and a hanging basket, and the moving mechanism is arranged on the box girder and can move on the box girder; the supporting mechanism is mounted on the moving mechanism, and the moving mechanism can drive the supporting mechanism to move; the hanging basket is movably arranged at the end, close to the cantilever plate, of the supporting mechanism. The device moves on the box girder through the moving mechanism, construction operation of the cantilever slab is facilitated, and the hanging basket is movably arranged on the supporting mechanism and can adapt to all periods of construction of the cantilever slab. Compared with the prior art, the device can not only facilitate construction of the cantilever slab, reduce the construction difficulty and improve the construction efficiency, but also improve the operation safety; and the device is high in universality, and the construction cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a cantilever plate construction device. Background Art

[0002] Currently, due to factors such as site limitations and cross-sectional symmetry, the construction of concrete box girders often involves the post-casting of cantilever slabs. Therefore, in practical engineering, the cantilever slabs often overhang, requiring the coordination of cranes for processes such as rebar binding, formwork installation, and concrete pouring. Since the box girder has just been cast, traffic is blocked on both sides, making it impossible for a crane to access the bridge on its own. A second crane is required to assist, increasing construction difficulty, reducing efficiency, and increasing operational risk. Furthermore, the cantilever slabs of box girders are typically long, making them impossible to cast in a single pass. Several cycles are required, necessitating extended crane operations and driving up production costs.

[0003] Therefore, a cantilever plate construction device is urgently needed to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a cantilever slab construction device, which can improve the efficiency and safety of cantilever slab construction and reduce production costs.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A cantilever plate construction device, which can be installed on a box beam, with the cantilever plate connected to the box beam, comprises:

[0007] A moving mechanism, the moving mechanism being provided on the box beam and being capable of moving on the box beam;

[0008] A supporting mechanism, wherein the supporting mechanism is mounted on the moving mechanism, and the moving mechanism is capable of driving the supporting mechanism to move;

[0009] The hanging basket is movably arranged at the end of the supporting mechanism close to the cantilever plate.

[0010] As a preferred technical solution of the above-mentioned cantilever slab construction device, the cantilever slab construction device further includes a winch structure, and the winch structure is installed on the supporting mechanism.

[0011] As a preferred technical solution of the above-mentioned cantilever slab construction device, the moving mechanism includes a guide rail installed on the box beam and a roller rollingly connected to the guide rail, and the supporting mechanism is rotationally connected to the roller.

[0012] As a preferred technical solution of the above-mentioned cantilever plate construction device, the roller is a steel part.

[0013] As a preferred technical solution for the above-mentioned cantilever plate construction device, the supporting mechanism includes a first supporting structure, a second supporting structure and a column. The first supporting structure is installed on the moving mechanism, and the hanging basket is movably arranged at the end of the second supporting structure close to the cantilever plate. The two ends of the column are respectively connected to the end of the first supporting structure close to the cantilever plate and the end of the second supporting structure away from the cantilever plate. The first supporting structure and the second supporting structure are arranged in parallel.

[0014] As a preferred technical solution of the above-mentioned cantilever slab construction device, the support mechanism further includes an oblique brace, and both ends of the oblique brace are respectively connected to the second supporting structure and the column.

[0015] As a preferred technical solution of the above-mentioned cantilever plate construction device, a plurality of connecting beams are arranged at intervals near the end of the cantilever plate of the second supporting structure, and the hanging basket can be connected to the connecting beams.

[0016] As a preferred technical solution of the above-mentioned cantilever plate construction device, the box beam is provided with a wall, and the side wall of the first supporting structure close to the cantilever plate is against the inner wall of the wall.

[0017] As a preferred technical solution of the above-mentioned cantilever plate construction device, the cantilever plate construction device further includes a weight block, and the weight block is installed at one end of the support mechanism away from the cantilever plate.

[0018] As a preferred technical solution of the above-mentioned cantilever slab construction device, the weight block is a concrete part.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a cantilever plate construction device. The cantilever plate construction device is installed on the box beam, and the cantilever plate is connected to the box beam. The cantilever plate construction device includes a moving mechanism, a supporting mechanism and a hanging basket. The moving mechanism is arranged on the box beam, and the moving mechanism can move on the box beam; the supporting mechanism is installed on the moving mechanism, and the moving mechanism can drive the supporting mechanism to move; the hanging basket is movably arranged on the end of the supporting mechanism close to the cantilever plate. The device is moved on the box beam by the moving mechanism, which is convenient for the construction of the cantilever plate. The hanging basket is movably arranged on the supporting mechanism to adapt to various cycles of the cantilever plate construction. Compared with the existing technology, the device can not only facilitate the construction of the cantilever plate, reduce the difficulty of construction, improve the construction efficiency, but also improve the safety of the operation; and the device has strong versatility and can reduce construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 A side view of the structure of the cantilever plate construction device provided by an embodiment of the utility model;

[0023] Figure 2 A top view of the structure of the cantilever plate construction device provided in an embodiment of the utility model.

[0024] In the picture:

[0025] 1. Box girder; 2. Cantilever plate; 3. Hanging basket; 4. Winch structure; 41. Mounting part; 42. Rotating part; 43. Hoisting part; 5. Guide rail; 6. Roller; 7. First supporting structure; 71. First crossbeam; 72. Longitudinal beam; 8. Second supporting structure; 81. First crossbeam; 82. Connecting beam; 9. Column; 10. Diagonal brace; 11. Wall; 12. Ballast block. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0027] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] like Figure 1 and Figure 2 As shown, the utility model provides a cantilever slab construction device. The cantilever slab construction device can be installed on a box beam 1, which is cast by concrete. A cantilever slab 2 is arranged at one end of the box beam 1, which is cast by concrete. The cantilever slab construction device includes a moving mechanism, a supporting mechanism, and a hanging basket 3.

[0031] Specifically, a movable mechanism is mounted on the box girder 1 and is capable of moving on the box girder 1; a supporting mechanism is mounted on the movable mechanism and is capable of driving the supporting mechanism to move; and a hanging basket 3 is movably mounted on the end of the supporting mechanism near the cantilever plate 2. This device, which is movable on the box girder 1 via the movable mechanism, facilitates the construction of the cantilever plate 2. The movability of the hanging basket 3 on the supporting mechanism allows it to adapt to various construction cycles of the cantilever plate 2. Compared to existing technologies, this device not only facilitates the construction of the cantilever plate 2, reduces construction difficulty, improves construction efficiency, and enhances operational safety, but also offers high versatility, reducing construction costs.

[0032] Preferably, the moving mechanism includes a guide rail 5 mounted on the box girder 1 and a roller 6 in rolling connection with the guide rail 5, and the supporting mechanism is rotatably connected to the roller 6. Specifically, the guide rail 5 is mounted on the top surface of the box girder 1, and the roller 6 is mounted on the guide rail 5. The roller 6 can move along the guide rail 5, and the roller 6 can reduce friction with the guide rail 5, thereby facilitating the movement of the cantilever slab construction device to the construction site.

[0033] Optionally, the roller 6 is made of steel. Specifically, in this embodiment, the roller 6 is a steel wheel. Since the roller 6 serves both as a moving part and as a support, the steel wheel is less susceptible to damage, thereby preventing construction delays caused by damage to the roller 6. This increases the service life of the roller 6, thereby further increasing the service life of the cantilever slab construction device. Of course, in other embodiments, the material of the roller 6 is determined according to actual requirements. The roller 6 can also be a movable structure such as a universal wheel. The form of the roller 6 is not limited here.

[0034] Optionally, the moving mechanism includes a guide rail 5 installed on the box beam 1 and a slider slidably connected to the guide rail 5, and the supporting mechanism is fixedly connected to the slider to facilitate moving the cantilever plate construction device to the construction site.

[0035] Optionally, the guide rail 5 is a track beam, which is cast by concrete, making it convenient to obtain materials on site. After the concrete construction of the cantilever plate 2 is completed, the track beam does not need to be removed and can be used as an internal template for the next process, saving materials and preventing material waste.

[0036] Preferably, the cantilever slab construction device further comprises a hoist structure 4, which is mounted on the support mechanism. Specifically, the hanging basket 3 is used to carry workers and assist them in completing high-altitude operations. The hoist structure 4 is used to hoist materials. The hoist structure 4 comprises a mounting portion 41, a rotating portion 42, and a hoisting portion 43. The mounting portion 41 is mounted on the support mechanism, the rotating portion 42 is rotatably connected to the mounting portion 41, and the hoisting portion 43 is mounted on the rotating portion 42. The rotating portion 42 can drive the hoisting portion 43 to rotate, thereby facilitating the handling of materials.

[0037] Preferably, the supporting mechanism includes a first supporting structure 7, a second supporting structure 8 and a column 9. The first supporting structure 7 is installed on the moving mechanism, and the hanging basket 3 can be movably set at the end of the second supporting structure 8 close to the cantilever plate 2. The two ends of the column 9 are respectively connected to the end of the first supporting structure 7 close to the cantilever plate 2 and the end of the second supporting structure 8 away from the cantilever plate 2. The first supporting structure 7 and the second supporting structure 8 are arranged in parallel.

[0038] Specifically, the first support structure 7 is rotatably connected to the roller 6. In this embodiment, the first support structure 7 includes two first cross beams 81 and several longitudinal beams 72, and is provided with two guide rails 5 and four rollers 6. The two guide rails 5 are arranged at intervals, and each first cross beam 81 is installed with two rollers 6 at intervals. Several longitudinal beams 72 are arranged at intervals, and the two ends of the longitudinal beam 72 are respectively connected to the two first cross beams 81, which can make the first support structure 7 stable and firm, and prevent the first support structure 7 from being deformed or damaged; the provision of two guide rails 5 and four rollers 6 can make the first support structure 7 move stably, and at the same time can make the first support structure 7 move accurately to prevent offset.

[0039] The first supporting structure 7 and the second supporting structure 8 are arranged in parallel, and the first supporting structure 7 and the second supporting structure 8 are connected by columns 9. The supporting mechanism is provided with four columns 9, and the columns 9 are arranged perpendicular to the first supporting structure 7 and the second supporting structure 8. The two ends of the columns 9 are respectively connected to a first cross beam 81 and a second supporting structure 8, which can make the first supporting structure 7 and the second supporting structure 8 firmly connected, thereby improving the stability of the cantilever plate construction device.

[0040] Of course, in some other embodiments, the number of the first beam 81 , the guide rail 5 , the roller 6 , and the column 9 is determined according to actual needs.

[0041] Preferably, the support mechanism further includes a diagonal brace 10, the ends of which are respectively connected to the second support structure 8 and the column 9. Specifically, in this embodiment, two diagonal braces 10 are provided, the ends of which are respectively connected to the second support structure 8 and the column 9, so that the second support structure 8, the column 9, and the diagonal brace 10 form a triangular structure. This can improve the stability of the connection between the second support structure 8 and the column 9, prevent the danger of breakage between the second support structure 8 and the column 9, and further improve the stability of the cantilever slab construction device. Of course, in other embodiments, the number of diagonal braces 10 is determined based on the number of connections between the second support structure 8 and the column 9.

[0042] Preferably, a plurality of connecting beams 82 are spaced apart near the end of the cantilever plate 2 of the second supporting structure 8, and the hanging basket 3 can be connected to the connecting beams 82. Specifically, the second supporting structure 8 includes two second cross beams and a plurality of connecting beams 82, wherein the two second cross beams are spaced apart, and the plurality of connecting beams 82 are spaced apart, and the ends of the connecting beams 82 are respectively connected to the two second cross beams, which can increase the overall stability of the second supporting structure 8; the hanging basket 3 can be installed on the connecting beams 82, and as the construction period changes, the hanging basket 3 can be connected to different connecting beams 82, thereby changing the position of the hanging basket 3 and facilitating the operation of the construction personnel.

[0043] Preferably, the box girder 1 is provided with a wall 11, and the side wall of the first support structure 7 near the cantilever plate 2 abuts against the inner wall of the wall 11. Specifically, the wall 11 is cast on the box girder 1, and the wall 11 is close to the edge of the box girder 1. One end of the first crossbeam 81 abuts against the wall 11, which can prevent the first crossbeam 81 from moving in a direction perpendicular to the wall 11 and prevent the roller 6 from separating from the guide rail 5.

[0044] Preferably, the cantilever slab construction device further includes a ballast block 12, which is mounted on the end of the support mechanism away from the cantilever slab 2. Specifically, one end of the first crossbeam 81 abuts against the wall 11, and the other end of the first crossbeam 81 is provided with a plurality of longitudinal beams 72, which constitute a support platform. The ballast block 12 is disposed on the support platform, which can maintain the balance of the cantilever slab construction device during operation and prevent the cantilever slab construction device from overturning.

[0045] Optionally, the ballast block 12 is a concrete member. Specifically, the ballast block 12 is cast by concrete, which is convenient for on-site material production and can produce ballast blocks 12 of different weights, thereby improving the load-bearing capacity of the cantilever plate construction device.

[0046] The utility model provides a cantilever slab construction device that can be assembled on site. After the box beam 1 and the wall 11 are cast, the cantilever slab construction device can be assembled. The cantilever slab construction device is easy to use and has strong versatility. The steps for using the cantilever slab construction device are as follows:

[0047] First, carry out the positioning construction of the guide rail 5. After the positioning is completed, install the roller 6 and the first crossbeam 81. Make sure that one end of the first crossbeam 81 is close to the wall 11 to prevent the cantilever slab construction device from sliding laterally; after the first crossbeam 81 is installed, install the column 9, the second crossbeam, the diagonal brace 10, the longitudinal beam 72 and the connecting beam 82 in sequence. At this point, the main steel structure of the cantilever slab construction device is installed; prepare the concrete weight blocks 12 in the remaining sites in advance, and then load the weight blocks 12 on the longitudinal beam 72 of the cantilever slab construction device to ensure that the cantilever slab construction device will not be in danger of overturning. From then on, the cantilever slab construction device is fully installed.

[0048] After the cantilever slab construction device is installed, it moves along the guide rail 5 to the cantilever slab 2 to be cast. The hanging basket 3 is installed at the front end of the second crossbeam cantilever to facilitate personnel to carry out subsequent operations such as steel bar binding and formwork installation. Then, using the first crossbeam 81 of the cantilever slab construction device as a foundation, the hoist structure 4 is installed as a lifting mechanism for the subsequent steel bars and formwork. Then, the cantilever slab 2 construction work can be carried out.

[0049] After the concrete of cantilever slab 2 reaches the required strength, the hoist structure 4 and hanging basket 3 are used to remove the bottom and side forms of the concrete of cantilever slab 2 and modify the concrete surface. The hanging basket 3 and hoist structure 4 are then removed, and the cantilever slab construction equipment is moved to the location of the next cantilever slab 2. This cycle continues until the concrete construction of the cantilever slab 2 of the entire bridge is completed.

[0050] After the cantilever plate construction device is removed, the inner guide rail 5 is retained. During the later concrete pouring, the guide rail 5 can be used as an inner template and is closely integrated with the next process.

[0051] Furthermore, the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A cantilever plate construction device, wherein the cantilever plate construction device can be installed on a box beam (1), wherein a cantilever plate (2) is connected to the box beam (1), and wherein: include: A moving mechanism, the moving mechanism being arranged on the box beam (1), and the moving mechanism being capable of moving on the box beam (1); A supporting mechanism, wherein the supporting mechanism is installed on the moving mechanism, and the moving mechanism can drive the supporting mechanism to move; A hanging basket (3) is movably arranged at the end of the supporting mechanism close to the cantilever plate (2).

2. The cantilever slab construction device according to claim 1, characterized in that: The cantilever slab construction device further comprises a hoisting machine structure (4), and the hoisting machine structure (4) is installed on the supporting mechanism.

3. The cantilever slab construction device according to claim 1, characterized in that: The moving mechanism comprises a guide rail (5) mounted on the box beam (1) and a roller (6) rollingly connected to the guide rail (5), and the supporting mechanism is rotationally connected to the roller (6).

4. The cantilever slab construction device according to claim 3, characterized in that: The roller (6) is a steel part.

5. The cantilever slab construction device according to claim 1, characterized in that: The supporting mechanism comprises a first supporting structure (7), a second supporting structure (8) and a column (9); the first supporting structure (7) is installed on the moving mechanism; the hanging basket (3) can be movably arranged at the end of the second supporting structure (8) close to the cantilever plate (2); the two ends of the column (9) are respectively connected to an end of the first supporting structure (7) close to the cantilever plate (2) and an end of the second supporting structure (8) away from the cantilever plate (2); the first supporting structure (7) and the second supporting structure (8) are arranged in parallel.

6. The cantilever slab construction device according to claim 5, characterized in that: The supporting mechanism further comprises an oblique brace (10), the two ends of which are respectively connected to the second supporting structure (8) and the column (9).

7. The cantilever slab construction device according to claim 5, characterized in that: A plurality of connection beams (11) are arranged at intervals on the second supporting structure (8) near the end of the cantilever plate (2), and the hanging basket (3) can be connected to the connection beams (11).

8. The cantilever slab construction device according to claim 5, characterized in that: The box beam (1) is provided with a wall (12), and the side wall of the first supporting structure (7) close to the cantilever plate (2) abuts against the inner wall of the wall (12).

9. The cantilever slab construction device according to any one of claims 1 to 8, characterized in that: The cantilever plate construction device further comprises a ballast block (13), wherein the ballast block (13) is mounted on an end of the support mechanism away from the cantilever plate (2).

10. The cantilever slab construction device according to claim 9, characterized in that: The ballast block (13) is a concrete part.

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