Bridge construction box girder pouring support adjusting device

Abstract

The utility model discloses a bridge construction box girder pours support adjusting device, including the lifting plate, the lifting plate top is fixed from left to right in proper order and is installed with first support plate and second support plate, the first support plate and second support plate between rotatory connection have screw rod, the screw rod surface thread movable joint has the first sliding block, the first sliding block sliding sets up in the lifting plate top, the lifting plate top front and back both sides all fixed mounting have the connecting frame, first connecting link is hingedly arranged between the first connecting block and sliding block, through setting up first handle, the staff rotates first handle according to the support angle required by box girder, and first handle rotation drives screw rod to rotate, and screw rod rotation drives surface first sliding block to remove, and first sliding block removes and drives the angle adjustment of adjusting plate through first connecting link and first connecting block, thereby the surface of adjusting plate is attached in the outside of box girder, thereby supports the box girder, and the operation is simple, saves time and labour, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge construction technology, and in particular to a support and adjustment device for casting box girders in bridge construction. Background Technology

[0002] During the construction of bridge box girders, formwork support is required. For some special parts, the support angle of the formwork needs to be adjusted. However, the existing formwork support structure is a fixed structure. When the angle needs to be adjusted, the adjustment process is inconvenient, and the fixing process after adjustment is relatively cumbersome.

[0003] The existing patent publication number CN220318372U discloses a formwork support device for bridge box girder casting, including a base box, a top box on the top of the base box, multiple adjustment slots on the side wall of the top box, a flip seat fixedly installed at the bottom of the top box, and a rotating coupling shaft rotatably installed inside the base box fixedly installed on the side wall of the flip seat. It also includes: an installation groove inside the base box, two positioning through holes on the side wall of the base box; a positioning plate, a connecting hinge fixedly installed on the top wall of the positioning plate, and fixing clamps fixedly installed on the side walls of the connecting hinges; and an adjusting screw inside the installation groove, with a positioning pressure plate threaded to the top of the side wall of the adjusting screw. This invention, by using fixing clamps to rotate and clamp onto the side wall of a steel pipe around the connecting hinge, allows the device to be used on steel pipes of different radii, achieving the effect of conveniently fixing the device.

[0004] Existing box girders require perimeter support and fixation during casting to ensure structural stability. However, the existing support structures are typically steel structures, requiring time-consuming and labor-intensive on-site installation. Therefore, we propose a bridge construction box girder casting support adjustment device to address the aforementioned problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a support and adjustment device for bridge construction box girder casting, which can solve the problem that existing box girders need to be supported and fixed around the box girder during casting to ensure structural stability. However, the existing box girder support structure is usually supported by steel structure, which requires time-consuming and labor-intensive on-site installation by workers.

[0007] To solve the above-mentioned technical problems, this utility model provides a bridge construction box girder casting support adjustment device, which adopts the following technical solution: it includes a lifting plate, on the top of the lifting plate, a first support plate and a second support plate are fixedly installed from left to right, a screw is rotatably connected between the first support plate and the second support plate, a first slider is movably connected to the screw surface, the first slider is slidably disposed on the top of the lifting plate, connecting frames are fixedly installed on both the front and rear sides of the top of the lifting plate, an adjustment plate is movably hinged between the two connecting frames, a first connecting block is fixedly installed at the bottom of the adjustment plate, and a first connecting rod is movably hinged between the first connecting block and the slider.

[0008] Optionally, the right end of the screw passes through the right side of the second support plate, and a first handle is fixedly installed on the right end of the screw.

[0009] Optionally, a fixed seat is provided directly below the lifting plate, and a limit plate is fixedly installed in the center of the inner cavity of the fixed seat. A bidirectional lead screw is rotatably connected between the inner walls of the left and right sides of the inner cavity of the fixed seat, and the bidirectional lead screw is rotatably connected to the surface of the limit plate.

[0010] Optionally, the left and right sections of the bidirectional lead screw are threadedly connected to a second slider, a second connecting block is fixedly installed at the bottom of the lifting plate, and a second connecting rod is movably hinged between the second connecting block and the adjacent second slider.

[0011] Optionally, the right end of the bidirectional lead screw passes through the right side of the fixed seat, and a second handle is fixedly installed on the right end of the bidirectional lead screw.

[0012] Optionally, the base is fixedly equipped with four support feet at its bottom.

[0013] In summary, this utility model has at least one of the following beneficial effects: 1. By setting a first handle, the operator can rotate the first handle according to the required support angle of the box girder. The rotation of the first handle drives the screw to rotate, and the rotation of the screw drives the first slider on the surface to move. The movement of the first slider drives the adjustment plate to adjust the angle through the first connecting rod and the first connecting block, thereby making the surface of the adjustment plate fit against the outside of the box girder, thus supporting the box girder. The operation is simple, time-saving, labor-saving, and highly practical.

[0014] 2. By setting a second handle, the operator can rotate the second handle according to the height of the box girder. The rotation of the second handle drives the double-sided lead screw to rotate, and the rotation of the double-sided lead screw drives the two second sliders on the left and right to move away from or closer to each other. When the second sliders move, they drive the lifting plate to move up and down through the second connecting rod and the second connecting block, thereby adjusting the height of the adjusting plate. The operation is simple and the practicality is strong. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front view of the overall structure of this utility model;

[0018] Figure 3 This is a top view of part of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of this utility model from the left side.

[0020] Explanation of reference numerals in the attached drawings: 1. Lifting plate; 2. First support plate; 3. Second support plate; 4. Screw; 5. First slider; 6. Connecting frame; 7. Adjusting plate; 8. First connecting block; 9. First connecting rod; 10. First handle; 11. Fixed seat; 12. Limiting plate; 13. Bidirectional lead screw; 14. Second slider; 15. Second connecting block; 16. Second connecting rod; 17. Second handle; 18. Support foot. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0022] Example 1, refer to Figure 1-4 In this embodiment, to address the issue that existing box girders require perimeter support and fixation during casting to ensure structural stability, but the existing support structures are typically steel structures requiring time-consuming and labor-intensive on-site installation, this utility model discloses a bridge construction box girder casting support adjustment device.

[0023] The device includes a lifting plate 1. A first support plate 2 and a second support plate 3 are fixedly installed on the top of the lifting plate 1 from left to right. A screw 4 is rotatably connected between the first support plate 2 and the second support plate 3. A first slider 5 is movably connected to the surface of the screw 4. The first slider 5 is slidably disposed on the top of the lifting plate 1. Connecting frames 6 are fixedly installed on both the front and rear sides of the top of the lifting plate 1. An adjusting plate 7 is movably hinged between the two connecting frames 6. A first connecting block 8 is fixedly installed at the bottom of the adjusting plate 7. A first connecting rod 9 is movably hinged between the first connecting block 8 and the slider.

[0024] The right end of the screw 4 passes through the right side of the second support plate 3, and the right end of the screw 4 is fixedly installed with the first handle 10. The rotation of the first handle 10 drives the screw 4 to rotate, and the rotation of the screw 4 drives the first slider 5 on the surface to move.

[0025] The specific working principle is as follows: First, the staff rotates the first handle 10 according to the required support angle of the box girder. The rotation of the first handle 10 drives the screw 4 to rotate, and the rotation of the screw 4 drives the first slider 5 on the surface to move. The movement of the first slider 5 drives the adjustment plate 7 to adjust the angle through the first connecting rod 9 and the first connecting block 8, so that the surface of the adjustment plate 7 is attached to the outside of the box girder, thereby supporting the box girder.

[0026] Example 2, refer to Figure 1-4 In this embodiment, in order to solve the problem of inconvenient height adjustment of existing box girder support structures, based on the same concept as in Embodiment 1 above, the bridge construction box girder casting support adjustment device further includes:

[0027] A fixed seat 11 is provided directly below the lifting plate 1. A limit plate 12 is fixedly installed in the center of the inner cavity of the fixed seat 11. A bidirectional screw 13 is rotatably connected between the inner walls of the left and right sides of the inner cavity of the fixed seat 11. The bidirectional screw 13 is rotatably connected to the surface of the limit plate 12. The limit plate 12 is used to limit the movement range of the two second sliders 14.

[0028] The left and right sections of the bidirectional lead screw 13 are threadedly connected to the second slider 14. The bottom of the lifting plate 1 is fixedly installed with the second connecting block 15. The second connecting block 15 and the adjacent second slider 14 are movably hinged with the second connecting rod 16.

[0029] The right end of the bidirectional lead screw 13 passes through the right side of the fixed base 11, and a second handle 17 is fixedly installed on the right end of the bidirectional lead screw 13. The rotation of the second handle 17 drives the bidirectional lead screw 13 to rotate, and the rotation of the bidirectional lead screw 13 drives the two second sliders 14 on the left and right to move away from or closer to each other.

[0030] Four support feet 18 are fixedly installed at the bottom of the fixed base 11. The support feet 18 are used to fix the entire support structure.

[0031] The specific working principle is as follows: the operator can rotate the second handle 17 according to the height of the box girder. The rotation of the second handle 17 drives the double-acting screw 13 to rotate. The rotation of the double-acting screw 13 drives the two second sliders 14 to move away from or closer to each other. When the second sliders 14 move, they drive the lifting plate 1 to move up and down through the second connecting rod 16 and the second connecting block 15, thereby adjusting the height of the adjusting plate 7.

[0032] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A bridge construction box girder casting support adjustment device, comprising a lifting plate (1), characterized in that: The top of the lifting plate (1) is fixedly installed with a first support plate (2) and a second support plate (3) from left to right. A screw (4) is rotatably connected between the first support plate (2) and the second support plate (3). A first slider (5) is movably connected to the surface of the screw (4). The first slider (5) is slidably disposed on the top of the lifting plate (1). Connecting frames (6) are fixedly installed on both the front and rear sides of the top of the lifting plate (1). An adjusting plate (7) is movably hinged between the two connecting frames (6). A first connecting block (8) is fixedly installed at the bottom of the adjusting plate (7). A first connecting rod (9) is movably hinged between the first connecting block (8) and the slider.

2. The bridge construction box girder casting support adjustment device according to claim 1, characterized in that: The right end of the screw (4) passes through the right side of the second support plate (3), and the right end of the screw (4) is fixedly installed with a first handle (10).

3. The bridge construction box girder casting support adjustment device according to claim 1, characterized in that: A fixed seat (11) is provided directly below the lifting plate (1). A limit plate (12) is fixedly installed in the middle of the inner cavity of the fixed seat (11). A two-way screw (13) is rotatably connected between the inner walls of the left and right sides of the inner cavity of the fixed seat (11). The two-way screw (13) is rotatably connected to the surface of the limit plate (12).

4. The bridge construction box girder casting support adjustment device according to claim 3, characterized in that: The two-way lead screw (13) is threadedly connected to the second slider (14) on both the left and right sides. The bottom of the lifting plate (1) is fixedly installed with a second connecting block (15). The second connecting block (15) and the adjacent second slider (14) are movably hinged with a second connecting rod (16).

5. The bridge construction box girder casting support adjustment device according to claim 3, characterized in that: The right end of the bidirectional lead screw (13) passes through the right side of the fixed seat (11), and a second handle (17) is fixedly installed on the right end of the bidirectional lead screw (13).

6. The bridge construction box girder casting support adjustment device according to claim 5, characterized in that: The bottom of the fixed base (11) is fixedly installed with four support feet (18).

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