Cast-in-place box girder formwork diagonal bracing device

Abstract

The utility model provides a cast-in-place box girder formwork diagonal bracing device which comprises a bottom frame and a supporting section, a first supporting frame is arranged on the left side of the upper end of the bottom frame, a second supporting frame is arranged at the upper end of the first supporting frame in a rotating mode, and telescopic structures are arranged in the first supporting frame and the second supporting frame. By means of the cast-in-place box girder formwork diagonal bracing device, a supporting section can be supported through the first supporting frame and the second supporting frame, the supporting section can be supported through the telescopic structure, and the supporting section can be supported through the second supporting frame and the second supporting frame. And the supporting plates slide in the first supporting frame and the second supporting frame correspondingly, so that the overall width of the diagonal bracing device is adjusted, the construction requirements of box girders with different widths are met, the universality of the device is improved, and the application range of the device is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of shoring devices, and particularly relates to a shoring device for a cast-in-place box girder formwork. Background Art

[0002] The shoring device for a cast-in-place box girder formwork is a key component used to support the formwork system during the construction of a cast-in-place concrete box girder, ensuring the stability and safety of the formwork during the concrete pouring process, and preventing the formwork from shifting or deforming due to the lateral pressure of the concrete. In the prior art, a support is usually arranged below the support section, and a support member is arranged inside the support to support the support section. However, the width of the support is generally fixedly set and cannot be adjusted according to the width of the support section. The support with a fixed width may not be able to adapt to box girder sections of different widths, restricting the application of the device in different engineering scenarios and reducing its versatility and flexibility.

[0003] For example, the utility model with the publication number CN205116715U discloses a shoring device for a cast-in-place box girder formwork. In the technical solution of this patent, a tiltable support is arranged below the support section, and several three-section braces are arranged inside the support to enable the support to support the support section. However, in this way, the width of the support is generally fixedly set, making it inconvenient to adjust the width of the support according to the width of the support section. The cross-sectional dimensions of cast-in-place box girders may vary in different engineering projects. The support with a fixed width may be too large or too small in some projects and cannot effectively adapt to various cross-sectional dimensions, which may lead to uneven distribution of the supporting force and thus affect the overall performance of the formwork support system. Summary of the Utility Model

[0004] In view of this, in order to overcome the deficiencies of the prior art, the utility model provides a shoring device for a cast-in-place box girder formwork, which can not only support the support section through the first support frame and the second support frame, but also enable the support plates to slide inside the first support frame and the second support frame respectively through the telescopic structure, so as to adjust the overall width of the shoring device, and further adapt to the construction requirements of box girders of different widths, improving the versatility and application range of the device.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is as follows: A diagonal bracing device for a cast-in-place box girder formwork, comprising a chassis and a support section. On the upper left side of the chassis, there is a first support frame. At the upper end of the first support frame, a second support frame is rotatably arranged. Telescopic structures are arranged inside both the first support frame and the second support frame. On the upper right side of the chassis, there is a support member for supporting the first and second support frames. The telescopic structure includes four support plates respectively slidably arranged inside the first support frame and the second support frame. Inside both the first support frame and the second support frame, there are driving members for driving the support plates to move. The driving member includes an installation box arranged in the middle of the first support frame and the second support frame. Inside the installation box, a bidirectional motor is fixedly arranged. At both ends of the bidirectional motor, screws are connected through couplings. Threaded holes adapted to the screws are arranged inside the support plates.

[0006] As a further improvement of the utility model, the support member includes a mounting seat arranged on the chassis. A number of telescopic diagonal braces are hinged on the mounting seat. The output ends of the telescopic diagonal braces are respectively hinged to the bottom walls of the first support frame and the second support frame.

[0007] As a further improvement of the utility model, there is a first gap between both the first support frame and the second support frame and the support section. The first gap is filled with first square timbers. There is a second gap between the support plate and the support section. The second gap is filled with second square timbers.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] Firstly, by setting the telescopic structure, starting the bidirectional motor, the bidirectional motor drives the screws to rotate. The rotation of the screws can make the support plates slide along the first support frame and the second support frame respectively, thereby adjusting the overall width of the diagonal bracing device to adapt to box girder sections of different widths, improving the versatility and flexibility of the device.

[0010] Secondly, by arranging the telescopic diagonal braces on the chassis to support the first support frame and the second support frame, the stability of the device is improved.

[0011] Thirdly, by setting the first square timbers and the second square timbers, the first square timbers and the second square timbers can fill the gaps between the first support frame, the second support frame, the support plate and the concrete support section, increasing the stability of the whole structure, preventing the shaking or displacement of the support caused by the gaps, and ensuring the stability of the formwork system during the concrete pouring process.

[0012] Fourthly, by adjusting the length of the telescopic diagonal braces, the second support frame can be rotated along the first support frame, and then the inclination of the second support frame can be adapted to the inclination of the support section, improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes the utility model in detail with reference to the drawings and specific embodiments.

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a schematic structural view of the installation box and screw rod of the present utility model;

[0016] Figure 3 is a schematic structural view of the first square timber and the second square timber of the present utility model;

[0017] Figure 4 is a schematic cross-sectional view of the present utility model.

[0018] In the figure: 101, chassis; 102, support section; 201, first support frame; 202, second support frame; 203, support plate; 204, installation box; 205, bidirectional motor; 206, screw rod; 301, mounting seat; 302, telescopic diagonal brace; 303, first square timber; 304, second square timber. Specific embodiments

[0019] To better understand the present utility model, the content of the present utility model will be further clearly elaborated below in conjunction with embodiments. However, the protection scope of the present utility model is not limited to the following embodiments. In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details.

[0020] Such as Figure 1 、 2 、Figure 3 shows a formwork diagonal brace device for cast-in-place box girders, including a chassis 101 and a support section 102. A first support frame 201 is provided on the upper left side of the chassis 101. A second support frame 202 is rotatably provided at the upper end of the first support frame 201. Telescopic structures are provided inside both the first support frame 201 and the second support frame 202. A support member for supporting the first support frame 201 and the second support frame 202 is provided on the upper right side of the chassis 101. The support member includes a mounting seat 301 provided on the chassis 101. A plurality of telescopic diagonal braces 302 are hinged to the mounting seat 301. The output ends of the telescopic diagonal braces 302 are respectively hinged to the bottom walls of the first support frame 201 and the second support frame 202.

[0021] Such as Figure 1 、 2, as shown in FIGS. 4, the telescopic structure includes four support plates 203 respectively slidably disposed inside the first support frame 201 and the second support frame 202. Inside both the first support frame 201 and the second support frame 202, there are driving members for driving the movement of the support plates 203. The driving members include mounting boxes 204 disposed in the middle of the first support frame 201 and the second support frame 202. Inside each mounting box 204, a bidirectional motor 205 is fixedly disposed. At both ends of the bidirectional motor 205, screw rods 206 are connected through couplings. Inside each support plate 203, there are threaded holes adapted to the screw rods 206.

[0022] As Figure 1 , 2 , 3, there is a first gap between both the first support frame 201 and the second support frame 202 and the support section 102. The first gap is filled with first square timbers 303. There is a second gap between the support plate 203 and the support section 102. The second gap is filled with second square timbers 304. The height of the second square timbers 304 is greater than the height of the first square timbers 303. The first square timbers 303 and the second square timbers 304 can fill the gaps between the first support frame 201, the second support frame 202, the support plate 203 and the concrete support section 102, increasing the stability of the entire structure, preventing the bracket from shaking or displacing due to the gaps, and ensuring the stability of the formwork system during the concrete pouring process.

[0023] During use, first place the inclined support device below the support section 102. According to the inclination of the support section 102, adjust the length of the telescopic inclined support member 302 so that the second support frame 202 rotates along the first support frame 201, so that the inclination of the second support frame 202 is adapted to the inclination of the support section 102. Then, according to the width of the support section 102, start the bidirectional motor 205. The bidirectional motor 205 drives the screw rod 206 to rotate. The rotation of the screw rod 206 drives the support plates 203 to slide along the first support frame 201 and the second support frame 202 respectively, so as to adjust the overall width of the inclined support device. Then, fill the first gap between the first support frame 201 and the second support frame 202 and the support section 102 with the first square timbers 303, and fill the second gap between the support plate 203 and the support section 102 with the second square timbers 304, ensuring a firm connection between the inclined support device and the support section 102, evenly distributing the supporting force, and improving the safety and applicability of the inclined support device.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A cast-in-place box beam formwork diagonal bracing device, comprising a base frame (101) and a supporting section (102), characterized in that: A support frame 1 (201) is arranged on the left side of the upper end of the base frame (101), and a support frame 2 (202) is rotatably arranged on the upper end of the support frame 1 (201). Both the support frame 1 (201) and the support frame 2 (202) are provided with telescopic structures inside. A support member for supporting the support member frame 1 and the support frame 2 (202) is arranged on the right side of the upper end of the base frame (101).

2. The cast-in-place box beam formwork diagonal bracing device according to claim 1, characterized in that: The telescopic structure comprises four support plates (203) which are respectively slidably arranged inside the support frame 1 (201) and the support frame 2 (202), and the support frame 1 (201) and the support frame 2 (202) are both provided with driving members for driving the support plates (203) to move.

3. The cast-in-place box beam formwork diagonal bracing device according to claim 2, characterized in that: The driving member comprises an installation box (204) arranged in the middle of the support frame 1 (201) and the support frame 2 (202), a bidirectional motor (205) is fixedly arranged inside the installation box (204), both ends of the bidirectional motor (205) are connected to a screw rod (206) through a coupling, and a threaded hole matching the screw rod (206) is arranged inside the support plate (203).

4. The cast-in-place box beam formwork diagonal bracing device according to claim 1, characterized in that: The support member comprises a mounting seat (301) arranged on the base frame (101), and a plurality of telescopic diagonal support members (302) are hingedly connected to the mounting seat (301).

5. The cast-in-place box beam formwork diagonal bracing device according to claim 4, characterized in that: The output ends of the telescopic diagonal bracing member (302) are hingedly connected to the bottom walls of the first support frame (201) and the second support frame (202) respectively.

6. The cast-in-place box beam formwork diagonal bracing device according to claim 1, characterized in that: The support frame 1 (201) and the support frame 2 (202) both have a gap 1 between them and the support section (102), and the gap 1 is filled with square wood 1 (303).

7. The cast-in-place box beam formwork diagonal bracing device according to claim 2, characterized in that: There is a second gap between the support plate (203) and the support section (102), and the second gap is filled with a second square wood (304).

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