Auxiliary supporting device for box girder support

By installing support auxiliary components and locking structures on the box girder support base, the problems of the bottom end of the support being suspended and unstable were solved, thereby improving the stability and flexibility of the support and meeting the actual use requirements.

CN121087906APending Publication Date: 2025-12-09SHANDONG CHINA CONSTR EIGHTH BUREAU INVESTMENT & CONSTR CO LTD
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Patent Information

Application Number
CN202511554719.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2025-12-09

AI Technical Summary

Technical Problem

The existing box girder support structure lacks suitable auxiliary support components during long-distance laying, resulting in the bottom end being suspended or the temporary support being unstable, making it difficult to meet actual usage requirements.

Method used

Design an auxiliary support device for box girder support, including a support auxiliary component and a locking auxiliary structure. By installing the support auxiliary rod on the support base and using locking slots and locking plates to achieve stable locking, the support stability is improved.

Benefits of technology

The overall support stability of the box girder support is improved. The length of the support auxiliary rod can be flexibly selected to meet different needs, and the stability of the support is further enhanced by the locking structure.

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Abstract

The invention relates to the technical field of building construction, in particular to a box girder support auxiliary supporting device which comprises a supporting auxiliary assembly, the supporting auxiliary assembly is arranged on a support base, the support base is arranged on the bottom side of a box girder support body, and through holes are formed in the support base at equal intervals; the supporting auxiliary assembly plays a good auxiliary role in supporting work of the box girder support body, the supporting auxiliary assembly is installed on the support base, it is guaranteed that the box girder support has good supporting and fixing work at the suspended position, and the overall supporting stability of the box girder support is improved; a plurality of supporting auxiliary rod bodies with different lengths can be selected for use according to actual requirements, so that the flexibility is high; in addition, the supporting auxiliary rod body is stably locked through the arranged locking auxiliary structure, and the supporting stability of the supporting auxiliary rod body is further improved.
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Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to an auxiliary support device for box girder supports. Background Technology

[0002] Box girder bridges are a type of beam in bridge engineering. They are hollow inside with flanges on both sides of the upper part, resembling a box, hence the name. They are divided into single-box and multi-box types. Reinforced concrete box girders are divided into precast box girders and cast-in-place box girders. Box girders precast in an independent site can be erected after the substructure is completed using a bridge erection machine, which can accelerate the project progress and save construction time. Cast-in-place box girders are mostly used for large continuous bridges.

[0003] A Chinese patent document with publication number CN218724116U discloses a foundation-free cast-in-place box girder support structure, which includes an auxiliary support moving frame and a main support frame. A support jack is fixedly installed on the bottom surface of the main support frame. The upper end of the main support frame is fixedly connected to a first support beam. A first Bailey beam is fixedly installed on the first support beam through bolts and a snap-fit ​​structure. A second support beam is fixedly installed on the top of the first Bailey beam. Intermediate support columns are installed at equal intervals on the second support beam. A third support beam is provided at the upper end of the intermediate support columns. A second infrared detector is installed on the first support beam. A first infrared detector is installed on the third support beam. The auxiliary support moving frame is provided on the side of the main support frame.

[0004] In the above-mentioned solutions and existing technologies, the support frame structure for box girders is generally spliced ​​together by multiple support units when a long laying period is required. In actual operation, there is a lack of suitable auxiliary support components at the bottom of the support frame. If the bottom of the support is suspended or needs to be supported, temporary support is provided by corresponding pads, which is inconvenient and lacks stability, and cannot meet the actual use requirements.

[0005] To address these issues, this invention proposes an auxiliary support device for box girder supports. Summary of the Invention

[0006] The purpose of this invention is to provide an auxiliary support device for box girder supports to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary support device for a box girder support, comprising a support auxiliary component, the support auxiliary component being disposed on a support base, the support base being disposed on the bottom side of the main body of the box girder support, the support base being provided with through holes at equal intervals, and the sides of the through holes being symmetrically provided with mounting thread grooves.

[0008] Preferably, the support auxiliary assembly includes a mounting base, a cylindrical groove, mounting side plates, mounting bolts, a bearing base, a connecting threaded groove, auxiliary feet, stabilizing auxiliary protrusions, a connecting screw head, a first mating threaded groove, a mating threaded post, a support auxiliary rod, a second mating threaded groove, a locking slot, and a locking auxiliary structure; the mounting base has a through cylindrical groove, and mounting side plates are symmetrically fixed on both sides of the bottom end of the mounting base. The mounting side plates have mounting holes, and the mounting bolts pass through the mounting holes and are threadedly connected to the mounting threaded grooves on the bracket base. A locking auxiliary structure is provided on one side of the mounting base. A connecting threaded groove is provided on the bearing base. An auxiliary foot is fixedly provided at equal intervals at the bottom end of the bearing base. A stabilizing auxiliary protrusion is fixedly provided at equal intervals on the bottom end face of the auxiliary foot. The connecting screw head is threadedly connected to the connecting threaded groove, and one end of the connecting screw head is provided with a first mating threaded groove. A mating threaded post is fixedly provided at one end of the supporting auxiliary rod body, and a second mating threaded groove is provided at the other end of the supporting auxiliary rod body. Locking slots are provided at equal intervals on the outer side wall of the supporting auxiliary rod body.

[0009] Preferably, the auxiliary feet are arranged in a ring at equal intervals at the bottom of the support base, and the auxiliary feet are inclined.

[0010] Preferably, the locking groove is an annular groove, and the supporting auxiliary rod is a column with its end diameter being equal to the end diameter of the connecting screw.

[0011] Preferably, the locking auxiliary structure includes an extension body, a placement cavity, a through groove, a locking plate, an auxiliary inclined surface, a baffle, an auxiliary spring, a round hole, a connecting screw, a cover plate, a threaded hole, a push-threaded post, a handle, and a fixing screw. The extension body is disposed on one side of the mounting base and has a placement cavity. The placement cavity has a through groove and symmetrically arranged threaded grooves. The locking plate is adapted to be inserted into the through groove, and a baffle is fixedly disposed at one end of the locking plate. An auxiliary inclined surface is symmetrically disposed at the end face of the other end of the locking plate. An auxiliary spring is symmetrically fixedly disposed on one side of the baffle, and round holes are symmetrically disposed on the baffle. The connecting screw passes through the baffle and is threadedly connected to the threaded groove in the placement cavity. The cover plate is fixedly connected to the end of the extension body by the fixing screw and has a threaded hole. The push-threaded post is threadedly connected to the threaded hole, and a handle is fixedly disposed at one end of the push-threaded post.

[0012] Preferably, the through groove and the cylindrical groove are positioned correspondingly, and the through groove and the cylindrical groove are connected.

[0013] Preferably, the locking plate and the locking slot are positioned correspondingly, and the thickness of the locking plate is equal to the width of the locking slot opening.

[0014] Preferably, the supporting auxiliary rod is adapted to be inserted into the cylindrical groove, and the end diameter of the supporting auxiliary rod is equal to the diameter of the cylindrical groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The auxiliary support device for box girder supports designed in this invention mainly provides excellent auxiliary support for the main body of the box girder support through the set auxiliary support components. By installing the auxiliary support components on the support base, it ensures good support and fixation even in the suspended position of the box girder support, thereby improving the overall support stability of the box girder support. Moreover, multiple auxiliary support rods or rods of different lengths can be selected according to actual needs, which provides high flexibility. Furthermore, the set locking auxiliary structure securely locks the auxiliary support rods, further enhancing its support stability and meeting actual use requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection between the box girder support and the supporting auxiliary components of the present invention;

[0018] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the connection of the central support auxiliary component structure;

[0019] Figure 3 This is a top view of a partial structural connection of the supporting auxiliary component of the present invention;

[0020] Figure 4 This is a bottom view of a partial structural connection of the supporting auxiliary component of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the connection of a local structure in the middle;

[0022] Figure 6 This is a schematic diagram of the right side of the locking auxiliary structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the front side of the locking auxiliary structure of the present invention.

[0024] In the diagram: 1. Box girder support body; 2. Support base; 3. Through hole; 4. Mounting threaded groove; 5. Support auxiliary component; 5. Mounting seat; 501. Column groove; 502. Mounting side plate; 503. Mounting bolt; 504. Bearing base; 505. Connecting threaded groove; 506. Auxiliary foot; 507. Stabilizing auxiliary protrusion; 508. Connecting screw head; 509. First mating threaded groove; 510. Mating threaded column; 511. Support auxiliary rod; 512. Second mating threaded groove. 13. Locking slot 514. Locking auxiliary structure 515. Extension body 51501. Placement cavity 51502. Through groove 51503. Locking plate 51504. Auxiliary inclined surface 51505. Baffle 51506. Auxiliary spring 51507. Round hole 51508. Connecting screw 51509. Cover plate 51510. Threaded hole 51511. Push threaded post 51512. Handle 51513. Fixing screw 51514. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figures 1-2 An auxiliary support device for a box girder support includes a support auxiliary component 5, which is mounted on a support base 2. The support base 2 is located on the bottom side of the box girder support body 1. Through holes 3 are equidistantly arranged on the support base 2, and mounting threaded grooves 4 are symmetrically arranged on the sides of the openings of the through holes 3. The main function of this invention is to provide excellent auxiliary support for the box girder support body 1 through the support auxiliary component 5. By mounting the support auxiliary component 5 on the support base 2, good support and fixation are ensured even in the suspended position of the box girder support, improving the overall support stability of the box girder support. Furthermore, multiple support auxiliary rods 512 of different lengths can be selected according to actual needs, offering high flexibility. Moreover, the locking auxiliary structure 515 securely locks the support auxiliary rods 512, further enhancing its support stability.

[0027] Example 2: Based on Example 1, please refer to... Figures 2-5The supporting auxiliary component 5 here includes a mounting base 501, a cylindrical groove 502, a mounting side plate 503, mounting bolts 504, a bearing base 505, a connecting threaded groove 506, auxiliary feet 507, a stabilizing auxiliary protrusion 508, a connecting screw head 509, a first mating threaded groove 510, a mating threaded post 511, a supporting auxiliary rod 512, a second mating threaded groove 513, a locking slot 514, and a locking auxiliary structure 515. The mounting base 501 has a through cylindrical groove 502, and mounting side plates 503 are symmetrically fixed on both sides of the bottom end of the mounting base 501. Mounting side plates 503 have mounting holes, and mounting bolts 504 pass through these holes and are threaded into the mounting threaded grooves 4 on the bracket base 2. A locking auxiliary structure 515 is provided on one side of the mounting base 501. The bearing base 505 has a connecting threaded groove 506, and auxiliary feet 507 are equidistantly fixed at the bottom end of the bearing base 505. The bottom surface of the auxiliary foot 507 is fixedly provided with stabilizing auxiliary protrusions 508 at equal intervals. The auxiliary foot 507 is arranged in a ring at equal intervals at the bottom end of the bearing base 505 and is inclined. The connecting screw head 509 is threadedly connected to the connecting threaded groove 506. One end of the connecting screw head 509 is provided with a first mating threaded groove 510. One end of the supporting auxiliary rod 512 is fixedly provided with a mating threaded post 511. The other end of the supporting auxiliary rod 512 is provided with a second mating threaded groove 513. The outer side wall of the supporting auxiliary rod 512 is provided with locking grooves 514 at equal intervals. The locking grooves 514 are annular grooves. The supporting auxiliary rod 512 is a column with its end diameter equal to the end diameter of the connecting screw head 509. The supporting auxiliary rod 512 is adapted to be inserted into the columnar groove 502. The end diameter of the supporting auxiliary rod 512 is equal to the opening diameter of the columnar groove 502.

[0028] For locations where the box girder support lacks auxiliary support, first fix the mounting base 501 in the corresponding position, aligning the cylindrical groove 502 in the mounting base 501 with the through hole 3 on the support base 2. Then connect the support auxiliary rod 512 to the connecting screw head 509. Next, extend the support auxiliary rod 512 through the cylindrical groove 502 from the bottom of the through hole 3. Then, thread the connecting screw head 509 to the bearing base 505. Then, place the bearing base 505 on the ground or a corresponding supporting object. Finally, lock the support auxiliary rod 512 using the locking auxiliary structure 515.

[0029] Example 3: Based on Example 2, please refer to... Figures 6-7The locking auxiliary structure 515 here includes an extension body 51501, a placement cavity 51502, a through groove 51503, a locking plate 51504, an auxiliary inclined surface 51505, a baffle 51506, an auxiliary spring 51507, a round hole 51508, a connecting screw 51509, a cover plate 51510, a threaded hole 51511, a push-threaded post 51512, a handle 51513, and a fixing screw 51514; the extension body 51501 A mounting base 501 is provided on one side, and an extension 51501 has a placement cavity 51502. The placement cavity 51502 has a through groove 51503, and threaded grooves are symmetrically arranged within it. A locking plate 51504 is fitted into the through groove 51503, and a baffle 51506 is fixedly provided at one end of the locking plate 51504. An auxiliary inclined surface 5 is symmetrically arranged at the end face of the other end of the locking plate 51504. 1505, Auxiliary springs 51507 are symmetrically fixed on one side of baffle 51506, and circular holes 51508 are symmetrically provided on baffle 51506. Connecting screws 51509 pass through baffle 51506 and are threadedly connected to the threaded groove in the placement cavity 51502. Cover plate 51510 is fixedly connected to the end of extension body 51501 by fixing screws 51514, and threaded holes 51511 are provided in cover plate 51510 for pushing threads. The column 51512 is threadedly connected to the threaded hole 51511, and a handle 51513 is fixedly provided at one end of the push-thread column 51512; the through groove 51503 is positioned corresponding to the cylindrical groove 502, and the through groove 51503 and the cylindrical groove 502 are connected; the locking plate 51504 is positioned corresponding to the locking groove 514, and the thickness of the locking plate 51504 is equal to the width of the opening of the locking groove 514.

[0030] Rotating the handle 51513 to push the threaded column 51512 causes the threaded column 51512 to push the baffle 51506, thereby pushing the locking plate 51504 forward. One end of the locking plate 51504 is symmetrically provided with auxiliary inclined surfaces 51505, which can better engage with the locking slots 514 on the corresponding positions of the support auxiliary rod 512, thereby locking the position of the support auxiliary rod 512 and completing the auxiliary support for the box girder bracket.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary support device for a box girder support, characterized in that: It includes a support auxiliary component (5), which is set on the support base (2). The support base (2) is set on the bottom side of the box girder support body (1). Through holes (3) are equidistantly arranged on the support base (2), and installation thread grooves (4) are symmetrically arranged on the side of the opening of the through holes (3).

2. The auxiliary support device for a box girder support according to claim 1, characterized in that: The supporting auxiliary component (5) includes a mounting base (501), a cylindrical groove (502), a mounting side plate (503), a mounting bolt (504), a bearing base (505), a connecting thread groove (506), an auxiliary foot (507), a stabilizing auxiliary protrusion (508), a connecting screw head (509), a first mating thread groove (510), a mating thread post (511), a supporting auxiliary rod (512), a second mating thread groove (513), a locking slot (514), and a locking auxiliary structure (515). The mounting base (501) has a cylindrical groove (502) that runs through it, and mounting side plates (503) are symmetrically fixed on both sides of the bottom end of the mounting base (501). The mounting side plates (503) have mounting holes, and the mounting bolts (504) pass through the mounting holes and are mounted on the bracket base (2). The mounting base (501) is provided with a locking auxiliary structure (515) on one side. The bearing base (505) is provided with a connecting thread groove (506). The bottom end of the bearing base (505) is provided with auxiliary feet (507) at equal intervals. The bottom end face of the auxiliary feet (507) is provided with stabilizing auxiliary protrusions (508) at equal intervals. The connecting screw head (509) is adapted to the connecting thread groove (506) for threaded connection. One end of the connecting screw head (509) is provided with a first mating thread groove (510). One end of the supporting auxiliary rod (512) is provided with a mating thread post (511). The other end of the supporting auxiliary rod (512) is provided with a second mating thread groove (513). The outer side wall of the supporting auxiliary rod (512) is provided with locking slots (514) at equal intervals.

3. The auxiliary support device for a box girder support according to claim 2, characterized in that: The auxiliary feet (507) are arranged in a ring at equal intervals at the bottom end of the support base (505), and the auxiliary feet (507) are inclined.

4. The auxiliary support device for a box girder support according to claim 2, characterized in that: The locking groove (514) is configured as an annular groove, and the supporting auxiliary rod (512) is configured as a column, the diameter of which is equal to the diameter of the end of the connecting screw (509).

5. The auxiliary support device for a box girder support according to claim 2, characterized in that: The locking auxiliary structure (515) includes an extension (51501), a placement cavity (51502), a through groove (51503), a locking plate (51504), an auxiliary inclined surface (51505), a baffle (51506), an auxiliary spring (51507), a round hole (51508), a connecting screw (51509), a cover plate (51510), a threaded hole (51511), a push-threaded post (51512), and a hand. The device includes a handle (51513) and a fixing screw (51514). The extension body (51501) is located on one side of the mounting base (501), and a placement cavity (51502) is provided within the extension body (51501). A through groove (51503) is provided within the placement cavity (51502), and threaded grooves are symmetrically arranged within the placement cavity (51502). The locking plate (51504) is adapted to and inserted into the through groove (51503). A baffle (51506) is fixedly provided at one end of the locking plate (51504), and auxiliary inclined surfaces (51505) are symmetrically provided at the end face of the other end of the locking plate (51504). An auxiliary spring (51507) is symmetrically fixedly provided on one side of the baffle (51506), and round holes (51508) are symmetrically provided on the baffle (51506). The connecting screw (51509) passes through the baffle (51506). The cover plate (51510) is threadedly connected to the threaded groove in the placement cavity (51502). The cover plate (51510) is fixedly connected to the end of the extension body (51501) by a fixing screw (51514). The cover plate (51510) is provided with a threaded hole (51511). The push threaded post (51512) is threadedly connected to the threaded hole (51511). A handle (51513) is fixedly provided at one end of the push threaded post (51512).

6. The auxiliary support device for a box girder support according to claim 5, characterized in that: The through groove (51503) and the cylindrical groove (502) are positioned correspondingly, and the through groove (51503) and the cylindrical groove (502) are connected.

7. The auxiliary support device for a box girder support according to claim 5, characterized in that: The locking plate (51504) is positioned corresponding to the locking slot (514), and the thickness of the locking plate (51504) is equal to the width of the slot (514).

8. The auxiliary support device for a box girder support according to claim 2, characterized in that: The supporting auxiliary rod (512) is adapted to be inserted into the cylindrical groove (502), and the end diameter of the supporting auxiliary rod (512) is equal to the diameter of the cylindrical groove (502).

Citation Information

Patent Citations

  • Foundation-treatment-free cast-in-place box girder support structure

    CN218724116U