Prefabricated box culvert shaping formwork for vertical pouring

Abstract

The utility model discloses a vertical pouring prefabricated box culvert shaping template which comprises an outer forming die and an inner forming die, a pouring cavity is formed between the outer forming die and the inner forming die, and the outer forming die is formed by splicing two first supporting side templates and two second supporting side templates. The adjacent first supporting side formwork and second supporting side formwork are detachably connected through a sealing connecting assembly, a lower sealing assembly is arranged at the bottom of the outer forming die, a synchronous inner supporting assembly is arranged in the inner forming die, and a pouring sealing assembly is arranged at the top of the outer forming die. The box culvert pouring sealing device has the advantages that the structure is simple, uniform pouring work of concrete is facilitated, demolding work of a formed box culvert is facilitated, the overall sealing performance is good during pouring, stable supporting can be provided for an inner forming mold, and the problem of deformation of the inner forming mold is avoided.

Description

Technical Field

[0001] This utility model relates to the field of precast box culvert technology, specifically to a precast box culvert shaping template for vertical casting. Background Technology

[0002] A box culvert is a type of culvert constructed using reinforced concrete box-shaped pipe sections, typically consisting of one or more square or rectangular cross-sections. Its structure includes a base slab, side walls, top slab, settlement joints, opening blocks, and wing walls, etc. It is constructed entirely using cast-in-place methods, forming a closed frame structure. Box culverts are a commonly used structure in highway engineering drainage channels.

[0003] However, the box culverts designed in highway drainage channel projects are basically cast-in-place construction. When building box culverts using traditional prefabricated templates, it is difficult to fix them properly, the work is not tight, the labor intensity is high, the construction time is long, it is not easy to seal them during the casting process, and it is not easy to dismantle the prefabricated templates after the box culverts are cast. Later, water leakage and surface pitting are likely to occur. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a precast box culvert shaping template for vertical casting.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a precast box culvert shaping template for vertical casting includes an outer forming mold and an inner forming mold, with a casting cavity formed between the outer forming mold and the inner forming mold. The outer forming mold is composed of two supporting side templates 1 and two supporting side templates 2 spliced ​​together. Adjacent supporting side templates 1 and supporting side templates 2 are detachably connected by a sealing connection component. A lower sealing component is provided at the bottom of the outer forming mold, a synchronous inner support component is provided inside the inner forming mold, and a casting sealing component is provided at the top of the outer forming mold. The synchronous inner support component is installed at the center of the inner top of the casting sealing component.

[0006] Preferably, the sealing connection assembly includes an insertion groove formed on the inner wall of the first support template, with elastic sealing gaskets bonded to both sides of the inner wall of the insertion groove, and insertion strips integrally connected to both ends of the second support template, with the insertion strips matching the insertion groove.

[0007] Preferably, the lower sealing assembly includes a lower support base, and a square sealing groove matching the outer forming mold is provided on the top surface of the lower support base. An array of outer support columns are fixedly connected inside the square sealing groove. The outer support columns are inserted into the bottom ends of the support side template one and the support side template two. The lower support base is also provided with an inner support column that is inserted into and cooperates with the inner forming mold.

[0008] Preferably, the casting sealing assembly includes an upper fixed support plate, an inner sealing frame matching the casting cavity is installed on the inner bottom of the upper fixed support plate, a main casting pipe is provided at the top center of the upper fixed support plate, four sets of L-shaped auxiliary casting pipes are evenly installed at the bottom end of the main casting pipe, the bottom end of the L-shaped auxiliary casting pipes penetrates the inner sealing frame and extends into the casting cavity, a fixing collar is installed on the L-shaped auxiliary casting pipe, and the bottom end of the fixing collar is fixedly connected to the upper fixed support plate through a column.

[0009] Preferably, the synchronous internal support assembly includes an outer fixing ring and an inner fixing plate. Four sets of connecting horizontal plates that are integrally connected to the outer fixing ring are evenly installed on the inner fixing plate. A rotating disk is rotatably installed on the inner fixing plate. A motor that is fixedly connected to the upper fixed support plate is connected to the top of the rotating disk. The outer fixing ring is fixedly connected to the upper fixed support plate through four connecting columns.

[0010] Preferably, a T-shaped sliding groove is provided on the connecting horizontal plate, and an inner contact plate is slidably installed in the T-shaped sliding groove. An arc-shaped rotating rod is movably connected between the inner contact plate and the rotating disk.

[0011] Preferably, an L-shaped external fixing piece is provided at the connection between adjacent support side template 1 and support side template 2, and the L-shaped external fixing piece connects and fixes support side template 1 and support side template 2 by mounting bolts.

[0012] This utility model provides a precast box culvert shaping formwork for vertical casting, with the following beneficial effects:

[0013] A casting cavity is formed between the outer and inner forming molds for the casting of precast box culverts. A sealing connection assembly connects the first and second support side templates, facilitating demolding of the outer forming mold. A lower sealing assembly seals the bottom during casting. A synchronous inner support assembly installed inside the inner forming mold provides stable support, preventing deformation. The casting sealing assembly seals the casting cavity from the top, promoting uniform concrete pouring. This invention features a simple structure, facilitates uniform concrete pouring, and allows for easy demolding of the box culvert after molding. It also provides excellent overall sealing during casting, offering stable support for the inner forming mold and preventing deformation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.

[0015] Figure 1This is a front view of a precast box culvert formwork for vertical casting according to an embodiment of the present utility model;

[0016] Figure 2 This is a structural schematic diagram of a sealing connection component in a precast box culvert molding template for vertical casting, according to an embodiment of the present utility model.

[0017] Figure 3 This is a structural schematic diagram of the lower sealing component in a precast box culvert molding template for vertical casting, according to an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the structure of a casting sealing component in a precast box culvert molding template for vertical casting, according to an embodiment of the present utility model.

[0019] Figure 5 This is a structural schematic diagram of the synchronous internal support component in a precast box culvert molding template for vertical casting, according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Outer forming mold; 2. Support side template one; 3. Support side template two; 4. Inner forming mold; 5. Lower sealing assembly; 6. Casting cavity; 7. Synchronous inner support assembly; 8. Casting sealing assembly; 9. Insert groove; 10. Elastic sealing gasket; 11. Insert strip; 12. Lower support base; 13. Square sealing groove; 14. Outer support column; 15. Inner support column; 16. Outer fixing ring; 17. Inner fixing plate; 18. Connecting horizontal plate; 19. Rotating disk; 20. Motor; 21. T-shaped sliding groove; 22. Abutting inner plate; 23. Arc-shaped rotating rod; 24. Connecting column; 25. Upper fixed support plate; 26. Inner sealing frame; 27. Main casting pipe; 28. L-shaped secondary casting pipe; 29. ​​Fixing collar; 30. Column; 31. Mounting bolt; 32. L-shaped outer fixing piece. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5This utility model provides a precast box culvert shaping template for vertical casting, including an outer forming mold 1 and an inner forming mold 4, with a casting cavity 6 formed between the outer forming mold 1 and the inner forming mold 4. The outer forming mold 1 is composed of two supporting side templates 1 2 and two supporting side templates 2 3 spliced ​​together. Adjacent supporting side templates 1 2 and supporting side templates 2 3 are detachably connected by a sealing connection assembly. By forming a casting cavity 6 between the outer forming mold 1 and the inner forming mold 4, it is used for the casting of precast box culverts. The sealing connection assembly facilitates the connection of the supporting side templates 1 2 and supporting side templates 2 3. For the demolding of mold 1, the bottom of the outer forming mold 1 is provided with a lower sealing component 5, the inside of the inner forming mold 4 is provided with a synchronous inner support component 7, and the top of the outer forming mold 1 is provided with a pouring sealing component 8. The synchronous inner support component 7 is installed at the center of the inner top of the pouring sealing component 8. The lower sealing component 5 can seal the bottom during pouring. The synchronous inner support component 7 installed inside the inner forming mold 4 can provide stable support for the inner forming mold 4 and prevent it from deforming. The pouring sealing component 8 can seal the pouring cavity 6 from the top and facilitate the uniform pouring of concrete.

[0024] In one embodiment, please refer to the appendix to the specification. Figure 2 As shown, the sealing connection assembly includes an insertion groove 9 formed on the inner wall of the support side template 2. Elastic sealing gaskets 10 are bonded to both sides of the inner wall of the insertion groove 9. Insertion strips 11 are integrally connected to both ends of the support side template 3, and the insertion strips 11 match the insertion groove 9. By inserting the insertion strips 11 into the corresponding insertion grooves 9 and sealing the connection with the elastic sealing gaskets 10, the connection between adjacent support side templates 2 and 3 can be achieved.

[0025] In one embodiment, please refer to the appendix to the specification. Figure 3 As shown, the lower sealing assembly 5 includes a lower support base 12. A square sealing groove 13, matching the outer forming mold 1, is formed on the top surface of the lower support base 12. An array of outer support columns 14 are fixedly connected inside the square sealing groove 13. The outer support columns 14 are inserted into the bottom ends of the first support template 2 and the second support template 3. The lower support base 12 also has an inner support column 15 that is inserted into and cooperates with the inner forming mold 4. The square sealing groove 13, in conjunction with the outer support columns 14, is used for positioning the outer forming mold 1, while the inner support columns 15 are used for the installation and positioning of the inner forming mold 4.

[0026] In one embodiment, please refer to the appendix to the specification. Figure 4As shown, the casting sealing assembly 8 includes an upper fixed support plate 25. An inner sealing frame 26, matching the casting cavity 6, is installed at the bottom inner part of the upper fixed support plate 25. A main casting pipe 27 is located at the top center of the upper fixed support plate 25. Four sets of L-shaped auxiliary casting pipes 28 are evenly installed at the bottom end of the main casting pipe 27. The bottom end of the L-shaped auxiliary casting pipes 28 passes through the inner sealing frame 26 and extends into the casting cavity 6. A fixing collar 29 is installed on the L-shaped auxiliary casting pipes 28, and the bottom end of the fixing collar 29 is fixedly connected to the upper fixed support plate 25 via a column 30. The inner sealing frame 26 matches the casting cavity 6 to achieve a sealing effect. Simultaneously, the L-shaped auxiliary casting pipes 28 at the bottom end of the main casting pipe 27 divide the concrete into four groups, allowing for casting from all four sides, greatly improving the uniformity of the casting.

[0027] In one embodiment, please refer to the appendix to the specification. Figure 5 As shown, the synchronous inner support assembly 7 includes an outer fixed ring 16 and an inner fixed plate 17. Four sets of connecting horizontal plates 18, integrally connected to the outer fixed ring 16, are evenly installed on the inner fixed plate 17. A rotating plate 19 is rotatably mounted on the inner fixed plate 17. A motor 20, fixedly connected to the upper fixed support plate 25, is connected to the top of the rotating plate 19. The outer fixed ring 16 is fixedly connected to the upper fixed support plate 25 via four connecting columns 24. A T-shaped sliding groove 21 is provided on the connecting horizontal plate 18. An abutment inner plate 22 is slidably installed within the T-shaped sliding groove 21. An arc-shaped rotating rod 23 is movably connected between the abutment inner plate 22 and the rotating plate 19. The motor 20 drives the rotating plate 19 to rotate. The rotation of the rotating plate 19, in conjunction with the four arc-shaped rotating rods 23 in the T-shaped sliding groove 21, causes the abutment inner plate 22 to move forward along the guide effect of the T-shaped sliding groove 21, thereby enabling the abutment inner plate 22 to simultaneously support the inner forming mold 4 from four angles.

[0028] In one embodiment, please refer to the appendix to the specification. Figure 1 As shown, L-shaped external fixing pieces 32 are provided at the connection between adjacent support side template 1 2 and support side template 2 3. The L-shaped external fixing pieces 32 connect and fix support side template 1 2 and support side template 2 3 by mounting bolts 31. The L-shaped external fixing pieces 32, together with the mounting bolts 31, provide external connection and support for support side template 1 2 and support side template 2 3.

[0029] In practical applications, a casting cavity 6 is formed between the outer forming mold 1 and the inner forming mold 4 for the casting of precast box culverts. A sealing connection assembly connects the first support template 2 and the second support template 3, facilitating the demolding of the outer forming mold 1. The lower sealing assembly 5 seals the bottom during casting. The synchronous inner support assembly 7, installed inside the inner forming mold 4, provides stable support and prevents deformation. The casting sealing assembly 8 seals the casting cavity 6 from the top, facilitating uniform concrete casting. This invention has a simple structure, facilitates uniform concrete casting, and makes demolding of the box culvert easier. It also provides good overall sealing during casting, offering stable support for the inner forming mold 4 and preventing deformation.

[0030] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precast box culvert formwork for vertical casting, characterized in that, It includes an outer forming mold (1) and an inner forming mold (4), and a casting cavity (6) is formed between the outer forming mold (1) and the inner forming mold (4). The outer forming mold (1) is spliced ​​from two support side templates (2) and two support side templates (3). The adjacent support side templates (2) and support side templates (3) are detachably connected by a sealing connection component. The bottom of the outer forming mold (1) is provided with a lower sealing component (5). The interior of the inner forming mold (4) is provided with a synchronous inner support component (7). The top of the outer forming mold (1) is provided with a casting sealing component (8), and the synchronous inner support component (7) is installed at the center of the inner top of the casting sealing component (8).

2. The precast box culvert formwork for vertical casting according to claim 1, characterized in that, The sealing connection assembly includes a plug groove (9) opened on the inner wall of the support side template (2), and elastic sealing gaskets (10) are bonded to both sides of the inner wall of the plug groove (9). The two ends of the support side template (3) are integrally connected with plug strips (11), and the plug strips (11) match the plug grooves (9).

3. The precast box culvert formwork for vertical casting according to claim 2, characterized in that, The lower sealing assembly (5) includes a lower support base (12). A square sealing groove (13) matching the outer forming mold (1) is provided on the top surface of the lower support base (12). An array of outer support columns (14) are fixedly connected inside the square sealing groove (13). The outer support columns (14) are inserted into the bottom ends of the support side template 1 (2) and the support side template 2 (3). The lower support base (12) is also provided with an inner support column (15) that is inserted into the inner forming mold (4).

4. The precast box culvert formwork for vertical casting according to claim 3, characterized in that, The casting sealing assembly (8) includes an upper fixed support plate (25). An inner sealing frame (26) matching the casting cavity (6) is installed at the bottom of the upper fixed support plate (25). A main casting pipe (27) is provided at the top center of the upper fixed support plate (25). Four sets of L-shaped auxiliary casting pipes (28) are evenly installed at the bottom end of the main casting pipe (27). The bottom end of the L-shaped auxiliary casting pipe (28) passes through the inner sealing frame (26) and extends into the casting cavity (6). A fixing collar (29) is installed on the L-shaped auxiliary casting pipe (28). The bottom end of the fixing collar (29) is fixedly connected to the upper fixed support plate (25) through a column (30).

5. A precast box culvert formwork for vertical casting according to claim 4, characterized in that, The synchronous internal support assembly (7) includes an outer fixed ring (16) and an inner fixed plate (17). Four sets of connecting horizontal plates (18) that are integrally connected to the outer fixed ring (16) are evenly installed on the inner fixed plate (17). A rotating disk (19) is rotatably installed on the inner fixed plate (17). A motor (20) that is fixedly connected to the upper fixed support plate (25) is connected to the top of the rotating disk (19). The outer fixed ring (16) is fixedly connected to the upper fixed support plate (25) through four connecting columns (24).

6. A precast box culvert formwork for vertical casting according to claim 5, characterized in that, A T-shaped sliding groove (21) is provided on the connecting horizontal plate (18). A contact inner plate (22) is slidably installed in the T-shaped sliding groove (21). An arc-shaped rotating rod (23) is movably connected between the contact inner plate (22) and the rotating disk (19).

7. A precast box culvert formwork for vertical casting according to claim 6, characterized in that, An L-shaped external fixing piece (32) is provided at the connection between adjacent support side template 1 (2) and support side template 2 (3). The L-shaped external fixing piece (32) connects and fixes support side template 1 (2) and support side template 2 (3) by mounting bolts (31).

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