Temporary reinforcing structure for cast-in-place box girder end formwork

Abstract

The utility model discloses a cast-in-place box girder end formwork temporary reinforcing structure which comprises an end formwork and a positioning hole, the positioning hole is formed in the end formwork, a positioning assembly is assembled in the end formwork, and a disassembling assembly is assembled in the positioning assembly. The positioning assembly comprises a fixing plate, a buckle frame is assembled on the side wall of the fixing plate, and a first threaded nail is arranged in a positioning hole. The positioning assembly comprises a fixing plate, a buckle frame is assembled on the side wall of the fixing plate, and a first threaded nail is arranged in a positioning hole. A fixing groove is formed in the clamping shell, a clamping plate is arranged in the positioning groove, an electromagnetic block is installed in the clamping plate, an electric push rod is arranged in the clamping plate, and a clamping hole is formed in one side of the clamping shell; according to the temporary reinforcing structure for the cast-in-place box girder end formwork, the structural design is reasonable, through the design, the stability of the buckling frame after buckling is improved, buckling is conducted through the output shaft of the electric push rod and the clamping hole in the clamping shell, and the stability of the clamping plate after buckling is improved.

Description

Technical Field

[0001] This utility model relates to the field of structural reinforcement technology, specifically a temporary reinforcement structure for the end formwork of a cast-in-place box girder. Background Technology

[0002] Cast-in-place box girder is a component that is formed by pouring concrete on the construction site to form a box-shaped beam structure. It is commonly used in building, bridge, tunnel and other engineering projects. The end formwork of cast-in-place box girder is part of the formwork located at both ends of the box girder. Its main function is to shape the concrete and ensure that the shape and size of the two ends of the box girder meet the design requirements.

[0003] Currently, using end formwork for cast-in-place box girders facilitates the shaping of the concrete at both ends of the girder. However, during the installation of these end formworks, due to their large size, it is inconvenient to quickly position them at the points where they need to be fixed, making it difficult to quickly pass threaded nails through the formwork and secure them to the girder. To address these issues, a temporary reinforcement structure for the end formwork of cast-in-place box girders that allows for rapid positioning is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a temporary reinforcement structure for the end formwork of cast-in-place box girders, in order to solve the problem mentioned in the background art that, although the end formwork of cast-in-place box girders is convenient for shaping the concrete at both ends of the cast-in-place box girder, when installing the end formwork, due to the large volume of some end formworks, it is inconvenient to quickly position the end formwork at the parts that need to be fixed at both ends of the cast-in-place box girder, so that the threaded nails can be quickly passed through the end formwork and fixed to the cast-in-place box girder.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temporary reinforcement structure for the end formwork of a cast-in-place box girder, comprising an end formwork and positioning holes, wherein the end formwork is provided with positioning holes, the end formwork is equipped with positioning components, and the positioning components are equipped with disassembly components;

[0006] The positioning component includes a fixing plate, the side wall of which is fitted with a buckle bracket, and a first threaded pin is provided in the positioning hole;

[0007] One end of the first threaded nail is provided with a cast-in-place box girder, and a retaining shell is assembled in the cast-in-place box girder, and a positioning groove is provided in the retaining shell;

[0008] The casing has a fixing groove, the positioning groove has a locking plate, the locking plate has an electromagnetic block installed, the locking plate has an electric push rod, and one side of the casing has a locking hole.

[0009] As a preferred embodiment of the temporary reinforcement structure for the end formwork of a cast-in-place box girder according to this utility model, one end of the fixing plate is connected to one end of the end formwork, and a second threaded hole is provided in the cast-in-place box girder, and the first threaded nail is threadedly connected to the second threaded hole.

[0010] As a preferred embodiment of the temporary reinforcement structure for the end formwork of a cast-in-place box girder according to this utility model, the disassembly assembly includes a second threaded nail, and the clamping plate is provided with a first threaded hole.

[0011] As a preferred embodiment of the temporary reinforcement structure for the end formwork of a cast-in-place box girder according to this utility model, the first threaded hole is in the shape of a round hole, and the side wall of the second threaded nail is threadedly connected to the inner wall of the first threaded hole.

[0012] As a preferred embodiment of the temporary reinforcement structure for the end formwork of a cast-in-place box girder according to this utility model, the card plate is provided with an installation groove, the electric push rod is provided with a fixing block, and one end of the second threaded nail passes through the connecting hole of the fixing block.

[0013] As a preferred embodiment of the temporary reinforcement structure for the end formwork of a cast-in-place box girder according to this utility model, the fixing block is square in shape and has connecting holes.

[0014] As a preferred embodiment of the temporary reinforcement structure for the end formwork of a cast-in-place box girder according to this utility model, the installation groove is provided with a square groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the temporary reinforcement structure for the end formwork of the cast-in-place box girder is reasonably designed;

[0016] This design utilizes a snap-fit ​​frame and a snap-fit ​​housing to facilitate the quick positioning of the end template in the cast-in-place box girder. The first threaded nail facilitates the quick fixation of the end template to the cast-in-place box girder, improving work efficiency. Then, one end of the snap-fit ​​plate passes through the positioning groove to fix the snap-fit ​​frame, thereby improving the stability of the snap-fit ​​frame after snapping. Finally, the output shaft of the electric push rod is engaged with the snap-fit ​​hole in the snap-fit ​​housing to further enhance the stability of the snap-fit ​​plate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is an exploded three-dimensional structural diagram of the positioning component of this utility model;

[0019] Figure 3 This is an exploded three-dimensional structural diagram of the disassembly components of the reinforcement structure of this utility model;

[0020] In the diagram: 1. Cast-in-place box girder; 2. First threaded nail; 3. End formwork; 4. Positioning assembly; 41. Fixing plate; 42. Clip bracket; 43. Clip plate; 44. Electromagnetic block; 45. Electric push rod; 46. Clamp; 47. Positioning groove; 48. Fixing groove; 5. Disassembly assembly; 51. Second threaded nail; 52. First threaded hole; 53. Mounting groove; 54. Fixing block; 6. Positioning hole; 7. Second threaded hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution:

[0023] In this technical solution, a temporary reinforcement structure for the end formwork of a cast-in-place box girder includes an end formwork 3 and a positioning hole 6. The end formwork 3 is provided with the positioning hole 6, and a positioning component 4 is assembled in the end formwork 3. The positioning component 4 is equipped with a disassembly component 5. The positioning component 4 includes a fixing plate 41, and a buckle bracket 42 is assembled on the side wall of the fixing plate 41. A first threaded nail 2 is provided in the positioning hole 6. A cast-in-place box girder 1 is provided at one end of the first threaded nail 2. A clamping shell 46 is assembled in the cast-in-place box girder 1. A positioning groove 47 is provided in the clamping shell 46. A fixing groove 48 is provided in the clamping shell 46. A clamping plate 43 is provided in the positioning groove 47. An electromagnetic block 44 is installed in the clamping plate 43. An electric push rod 45 is provided in the clamping plate 43. A clamping hole is provided on one side of the clamping shell 46.

[0024] In this technical solution, by setting up a positioning component 4 and a first threaded nail 2, when temporarily fixing the cast-in-place box girder 1 and the end template 3, the end template 3 is snapped into the clip 46 by the clip bracket 42 in the fixing plate 41. This facilitates the quick positioning of the end template 3 in the cast-in-place box girder 1, making it easy for the second threaded hole 7 in the cast-in-place box girder 1 to quickly correspond to the positioning hole 6 of the end template 3. This facilitates the quick passing of the first threaded nail 2 through the positioning hole 6 of the end template 3 and the second threaded hole 7 of the cast-in-place box girder 1, thereby temporarily fixing the cast-in-place box girder 1 and the end template 3, improving efficiency. For temporary fixation efficiency, after quickly positioning the end template 3 at one end of the cast-in-place box girder 1, one end of the clamping plate 43 is passed through the positioning groove 47 to fix the clamping frame 42, thereby improving the stability of the clamping frame 42 after clamping. Then, the electromagnetic block 44 is activated, so that one end of the electromagnetic block 44 is attracted and fixed to the inner wall of the clamping case 46, thereby further improving the stability of the clamping frame 42 after clamping. The clamping case 46 is made of a magnetically attractive material. Then, the electric push rod 45 is activated, so that the output shaft of the electric push rod 45 is clamped with the clamping hole in the clamping case 46, thereby improving the stability of the clamping plate 43 after clamping.

[0025] In some technical solutions, one end of the fixing plate 41 is connected to one end of the end template 3, and a second threaded hole 7 is provided in the cast-in-place box girder 1, and the first threaded nail 2 is threadedly connected to the second threaded hole 7.

[0026] In some technical solutions, the disassembly component 5 includes a second threaded pin 51, and the clamping plate 43 is provided with a first threaded hole 52.

[0027] In some technical solutions, the first threaded hole 52 is in the shape of a round hole, and the side wall of the second threaded pin 51 is threadedly connected to the inner wall of the first threaded hole 52.

[0028] In some technical solutions, the card plate 43 is provided with an installation groove 53, the electric push rod 45 is provided with a fixing block 54, and one end of the second threaded nail 51 passes through the connection hole of the fixing block 54.

[0029] In some technical solutions, the fixing block 54 is square in shape and has a connecting hole.

[0030] In some technical solutions, a square groove is provided in the mounting slot 53.

[0031] Working process and principle: By setting up the positioning component 4 and the first threaded nail 2, when temporarily fixing the cast-in-place box girder 1 and the end template 3, the end template 3 is snapped into the clip 46 by the snap bracket 42 in the fixing plate 41. This facilitates the quick positioning of the end template 3 in the cast-in-place box girder 1, so that the second threaded hole 7 in the cast-in-place box girder 1 can quickly correspond to the positioning hole 6 of the end template 3. This facilitates the quick passage of the first threaded nail 2 through the positioning hole 6 of the end template 3 and the second threaded hole 7 of the cast-in-place box girder 1, thereby temporarily fixing the cast-in-place box girder 1 and the end template 3, improving the efficiency of temporary fixing. After the end template 3 is quickly positioned at one end of the cast-in-place box girder 1, one end of the clip plate 43 is passed through the positioning groove 47 to fix the snap bracket 42, thereby improving the stability of the snap bracket 42 after snapping. Then, the electromagnetic block 4 is activated. 4. One end of the electromagnetic block 44 is attracted and fixed to the inner wall of the housing 46, thereby further improving the stability of the buckle frame 42 after buckling. The housing 46 is made of a magnetically attractive material. Then, the electric push rod 45 is activated, and the output shaft of the electric push rod 45 is engaged with the buckle hole in the housing 46, thereby improving the stability of the buckle plate 43 after buckling. Through this design, the buckle frame 42 and the housing 46 facilitate the quick positioning of the end template 3 in the cast-in-place box girder 1, and the first threaded nail 2 facilitates the quick fixing of the end template 3 to the cast-in-place box girder 1, improving work efficiency. Then, one end of the buckle plate 43 passes through the positioning groove 47 to fix the buckle frame 42, thereby improving the stability of the buckle frame 42 after buckling. And the output shaft of the electric push rod 45 is engaged with the buckle hole in the housing 46, improving the stability of the buckle plate 43 after buckling.

[0032] In this invention, by incorporating an extrusion block 74, during construction, the mounting plate 51 can be moved downwards so that the bottom ends of the mixing rod 59 and the grouting pipe 4 reach the bottom of the pit, thereby allowing the sliding block 73 to contact the bottom surface of the toothed ring 55. The second threaded rod 75 is rotated to move the extrusion block 74, thus fixing the sliding block 73. When the mounting plate 51 moves the mixing rod 59 downwards, the sliding block 73 and the extrusion block 74 prevent the mixing rod 59 from contacting the bottom of the pit and impacting it. This design limits the range of vertical movement of the mounting plate 51 during construction, preventing the mixing rod 59 and the grouting pipe 4 from contacting or detaching from the pit, thus avoiding any impact on the pit and the subway tunnel.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A temporary reinforcement structure for the end formwork of a cast-in-place box girder, comprising end formwork (3) and positioning holes (6), characterized in that, The end template (3) is provided with positioning holes (6), the end template (3) is equipped with positioning components (4), and the positioning components (4) are equipped with disassembly components (5). The positioning component (4) includes a fixing plate (41), the side wall of the fixing plate (41) is fitted with a buckle bracket (42), and a first threaded nail (2) is provided in the positioning hole (6). One end of the first threaded nail (2) is provided with a cast-in-place box girder (1), and a retaining box (46) is assembled in the cast-in-place box girder (1), and a positioning groove (47) is provided in the retaining box (46). The casing (46) is provided with a fixing groove (48), the positioning groove (47) is provided with a clamping plate (43), the clamping plate (43) is provided with an electromagnetic block (44), the clamping plate (43) is provided with an electric push rod (45), and the casing (46) is provided with a clamping hole on one side.

2. The temporary reinforcement structure for the end formwork of a cast-in-place box girder according to claim 1, characterized in that, One end of the fixing plate (41) is connected to one end of the end template (3), and a second threaded hole (7) is provided in the cast-in-place box girder (1). The first threaded nail (2) is threadedly connected to the second threaded hole (7).

3. The temporary reinforcement structure for the end formwork of a cast-in-place box girder according to claim 1, characterized in that, The disassembly assembly (5) includes a second threaded pin (51), a first threaded hole (52) is provided in the clamping plate (43), and a fixing block (54) is provided in the electric push rod (45). One end of the second threaded pin (51) passes through the connecting hole of the fixing block (54).

4. The temporary reinforcement structure for the end formwork of a cast-in-place box girder according to claim 3, characterized in that, The first threaded hole (52) is round, and the side wall of the second threaded pin (51) is threadedly connected to the inner wall of the first threaded hole (52).

5. A temporary reinforcement structure for the end formwork of a cast-in-place box girder according to claim 1, characterized in that, The card plate (43) is provided with an installation slot (53).

6. A temporary reinforcement structure for the end formwork of a cast-in-place box girder according to claim 3, characterized in that, The fixing block (54) is square in shape and has a connecting hole.

7. A temporary reinforcement structure for the end formwork of a cast-in-place box girder according to claim 5, characterized in that, A square groove is provided in the mounting slot (53).

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