A precast concrete box girder form

Abstract

The utility model relates to concrete box girder technical field discloses a prefabricated concrete box girder template, including the bottom die, the bottom die's bottom front side is fixedly connected with first support plate, the front side of first support plate all is fixedly connected with a plurality of buckles, the far side of a plurality of buckles all is set up with the limit slot, the bottom die's bottom rear side is fixedly connected with second support plate, the inner wall of second support plate all is set up with a plurality of first installation slot, the inner wall of a plurality of first installation slot all is connected with spring thread, the front side of spring is connected with first sliding bar slidingly, the inner wall of first sliding bar is set up with the protruding groove. In the utility model, when splicing and installing between the bottom die and the bottom die, the front side buckle of first support plate is pulled, so that the first sliding bar of first installation slot inner wall slides inwards, so that it can be removed, reach the effect of quick installation quick removal, enhance the site adaptability, simplify management.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete box girder devices, specifically a precast concrete box girder template. Background Technology

[0002] Concrete box girders are commonly used precast and cast-in-place load-bearing components in highway and railway transportation engineering. Their core function is to span distances and transfer loads. Their structural and performance characteristics determine the safety and durability of the project. The box section has strong closedness and higher torsional stiffness than ordinary T-beams, which can effectively cope with eccentric loads from vehicles and centrifugal forces on curved sections, reducing beam deformation. Compared with steel box girders, concrete materials are cheaper and easier to maintain. Furthermore, precast box girders can be mass-produced, reducing the overall cost. By adjusting the cross-sectional dimensions, the span can be covered, meeting the crossing requirements of most highway bridges.

[0003] When bridges need to withstand complex stresses and ensure smooth traffic flow, concrete box girders are preferred. Currently, concrete box girders are mostly installed using fixed installation devices. The steel molds for fixed installation concrete box girders are large in volume, requiring special flatbed trucks for transportation. They also require rain shelters and moisture-proof padding for storage, occupying a large area, which significantly increases the construction period, reduces turnover efficiency, decreases site adaptability, and complicates management. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a precast concrete box girder formwork, which aims to improve the problems in the existing technology that require special flatbed trucks for transportation and rainproof sheds and moisture-proof padding for storage, which occupy a large area, resulting in a significant increase in construction cycle, reduced turnover efficiency, decreased site adaptability, and complicated management.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a precast concrete box girder formwork, comprising a bottom mold, a first support plate fixedly connected to the front bottom of the bottom mold, a plurality of buckles fixedly connected to the front side of the first support plate, and a limiting groove formed on the opposite side of each of the plurality of buckles; a second support plate fixedly connected to the rear bottom of the bottom mold, a plurality of first mounting grooves formed on the inner wall of the second support plate, and a spring threadedly connected to the inner wall of each of the plurality of first mounting grooves; a first sliding rod slidably connected to the front side of the spring, and a protrusion formed on the inner wall of the first sliding rod; a first limiting rod slidably connected to the inner wall of the limiting groove; a first limiting plate fixedly connected to the outer wall of the first limiting rod; and a cleaning mechanism fixedly connected to the top of the bottom mold, the cleaning mechanism being used for cleaning devices.

[0006] As a further description of the above technical solution: The cleaning mechanism includes a side mold, the bottom of which is fixedly connected to the top of the bottom mold. Multiple second fixing rods are fixedly connected to the top left and right sides of the side mold. The inner walls of the multiple second fixing rods are provided with sliding grooves. Second sliding rods are slidably connected to the inner walls of the sliding grooves. Second mounting grooves are provided at the top of the second fixing rods. Scrapers are fixedly connected to the bottom of the second sliding rods. Rotating rods are rotatably connected to the top of the second fixing rods. Third limiting rods are rotatably connected to the outer walls of the rotating rods.

[0007] As a further description of the above technical solution: The top of the third limiting rod is slidably connected to the second limiting rod, and the outer wall of the second limiting rod is fixedly connected to the second limiting plate.

[0008] As a further description of the above technical solution: Multiple first connecting rods are fixedly connected to the outer walls of the multiple side molds on opposite sides, and the inner wall of the second mounting groove is slidably connected to the outer wall of the second sliding rod.

[0009] As a further description of the above technical solution: A first support rod is fixedly connected to the top of a plurality of first connecting rods, and a second connecting rod is fixedly connected to the adjacent side of a plurality of first support rods.

[0010] As a further description of the above technical solution: Each of the first support rods has a first diagonal rod fixedly connected to an adjacent side, and each of the first support rods has a second diagonal rod fixedly connected to a side that is far apart from the first support rod.

[0011] As a further description of the above technical solution: The top of the second diagonal bar is fixedly connected to a second support rod, and the opposite sides of the multiple second support rods are fixedly connected to a first fixing rod.

[0012] As a further description of the above technical solution: Each of the plurality of first support rods has a screw threadedly connected to the opposite side of each first connecting rod, and the adjacent side of each screw is threadedly connected to the opposite side of each first connecting rod.

[0013] This utility model has the following beneficial effects: 1. In this utility model, when the bottom mold is spliced ​​and installed, the front buckle of the first support plate is pulled, which causes the first sliding rod on the inner wall of the first mounting groove to slide inward, thereby driving the first limiting rod to move. When the first limiting rod moves to the inner wall limiting groove of the buckle, it locks the buckle and prevents it from moving. When disassembling, the first limiting rod is pulled to slide out of the limiting groove, which allows the buckle to move and be disassembled. This achieves the effect of quick installation and quick disassembly, which greatly shortens the construction cycle, improves turnover efficiency, enhances site adaptability, and simplifies management. 2. In this utility model, when the inner wall of the bottom mold needs to be cleaned, a scraper is installed, which drives the second sliding rod to slide into the inner wall of the second mounting groove. This causes the rotating rod to drive the third limiting rod to rotate, thus preventing the second sliding rod from being removed. The second sliding rod slides in the sliding groove on the inner wall of the second fixed rod, thereby driving the scraper to move on the outer wall of the bottom mold, achieving the effect of cleaning the outer wall. This protects the precision of the template, extends its service life, and is easy to operate, reducing labor and cost input. Attached Figure Description

[0014] Figure 1 This is a front perspective view of a precast concrete box girder formwork proposed in this utility model; Figure 2 This is a top view of a precast concrete box girder formwork proposed in this utility model; Figure 3 This is a partial structural diagram of the bottom mold of a precast concrete box girder formwork proposed in this utility model. Figure 4 This is a partial structural diagram of the second support plate of a precast concrete box girder formwork proposed in this utility model; Figure 5 This is a partial structural diagram of the scraper for a precast concrete box girder formwork proposed in this utility model.

[0015] Legend: 1. Bottom mold; 2. Cleaning mechanism; 201. Side mold; 202. Second fixing rod; 203. Sliding groove; 204. Second mounting groove; 205. Second sliding rod; 206. Scraper; 207. Rotating rod; 208. Third limiting rod; 3. First support plate; 4. Buckle; 5. Limiting groove; 6. Second support plate; 7. First mounting groove; 8. Spring; 9. First sliding rod; 10. Protrusion; 11. First limiting rod; 12. First limiting plate; 13. First connecting rod; 14. First support rod; 15. Second connecting rod; 16. First inclined rod; 17. Second inclined rod; 18. Second support rod; 19. First fixing rod; 20. Screw; 21. Second limiting rod; 22. Second limiting plate. Detailed Implementation

[0016] 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.

[0017] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides: a precast concrete box girder template, including a bottom mold 1, a first support plate 3 fixedly connected to the front bottom of the bottom mold 1, a plurality of buckles 4 fixedly connected to the front side of the first support plate 3, a limiting groove 5 opened on the opposite side of the plurality of buckles 4, a second support plate 6 fixedly connected to the rear bottom of the bottom mold 1, a plurality of first installation grooves 7 opened on the inner wall of the second support plate 6, a spring 8 threadedly connected to the inner wall of the plurality of first installation grooves 7, a first sliding rod 9 slidably connected to the front side of the spring 8, a protrusion 10 opened on the inner wall of the first sliding rod 9, a first limiting rod 11 slidably connected to the inner wall of the limiting groove 5, a first limiting plate 12 fixedly connected to the outer wall of the first limiting rod 11, and a cleaning mechanism 2 fixedly connected to the top of the bottom mold 1, the cleaning mechanism 2 being used for cleaning devices; Specifically, the bottom mold 1 is used for concrete formwork installation, the first support plate 3 is used to drive the buckle 4 to move, the buckle 4 is used to enter the inner wall of the first installation groove 7 to fix the installation, the limiting groove 5 is used to lock the first limiting rod 11, thereby locking the buckle 4 so that it cannot move, the second support plate 6 is used to drive the fixed installation, the first installation groove 7 is used to install the device, the spring 8 is used to allow the first sliding rod 9 to return to its original position after sliding, the first sliding rod 9 is used to allow the first limiting rod 11 to slide, the protrusion 10 is used to prevent the first limiting rod 11 from slipping, the first limiting rod 11 is used to lock the buckle 4, thereby fixing it between the bottom mold 1 and the top mold 1, and the first limiting plate 12 is used to limit the sliding distance of the first limiting rod 11.

[0018] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 The cleaning mechanism 2 includes a side mold 201, the bottom of which is fixedly connected to the top of the bottom mold 1. Multiple second fixing rods 202 are fixedly connected to the left and right sides of the top of the side mold 201. The inner walls of the multiple second fixing rods 202 are provided with sliding grooves 203. The inner walls of the sliding grooves 203 are slidably connected with second sliding rods 205. The top of the second fixing rods 202 is provided with a second mounting groove 204. The bottom of the second sliding rods 205 is fixedly connected with a scraper 206. The top of the second fixing rods 202 is rotatably connected with a rotating rod 207. The outer wall of the rotating rod 207 is rotatably connected with a third limiting rod 208. Specifically, the side formwork 201 is used for modular concrete installation, the second fixing rod 202 is used for mounting the device, the sliding groove 203 is used to allow the equipment to slide, the second mounting groove 204 is used to facilitate the installation of the second sliding rod 205, the second sliding rod 205 is used to drive the scraper 206 to slide, the scraper 206 is used to clean the inner walls of the bottom formwork 1 and the side formwork 201, the rotating rod 207 is used to drive the third limiting rod 208 to limit it, and the third limiting rod 208 is used to fix the mounting device.

[0019] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 The top of the third limiting rod 208 is slidably connected to the second limiting rod 21, and the outer wall of the second limiting rod 21 is fixedly connected to the second limiting plate 22. The outer walls of the multiple side molds 201 are fixedly connected to the opposite side of each other, and the inner wall of the second mounting groove 204 is slidably connected to the outer wall of the second sliding rod 205. The top of the multiple first connecting rods 13 is fixedly connected to the first support rod 14, and the adjacent side of the multiple first support rods 14 is fixedly connected to the second connecting rod 15. Specifically, the second limiting rod 21 is used to fix the third limiting rod 208, the second limiting plate 22 is used to limit the sliding distance of the second limiting rod 21, the first connecting rod 13 is used to connect the first support rod 14 so that the device can be supported, the first support rod 14 is used to support the device, and the second connecting rod 15 is used to connect the first support rod 14 to the fixing device.

[0020] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 The top of the second diagonal rod 17 is fixedly connected to a second support rod 18. The opposite sides of the multiple second support rods 18 are fixedly connected to a first fixing rod 19. The adjacent sides of the multiple first support rods 14 are all fixedly connected to multiple first diagonal rods 16. The opposite sides of the multiple first support rods 14 are all fixedly connected to a second diagonal rod 17. The opposite sides of the multiple first support rods 14 are all threadedly connected to screws 20. The adjacent sides of the multiple screws 20 are threadedly connected to the opposite sides of the multiple first connecting rods 13. Specifically, the second support rod 18 is used to share the pressure, the first fixing rod 19 is used to fix the second support rod 18 to the second support rod 18, the first diagonal rod 16 is used to share the pressure of the second connecting rod 15, the second diagonal rod 17 is used to share the pressure on the second support rod 18, and the screw 20 is used to strengthen the fixation between the first connecting rod 13 and the first support rod 14.

[0021] Working principle: When the bottom mold 1 is spliced ​​and installed, the front buckle 4 of the first support plate 3 is pulled, thus entering the first mounting groove 7 on the inner wall of the second support plate 6. This causes the first sliding rod 9 on the inner wall of the first mounting groove 7 to slide inward, thereby driving the first limiting rod 11 to move. When the first limiting rod 11 moves to the limiting groove 5 on the inner wall of the buckle 4, it locks the buckle 4 and prevents it from moving, thus locking the bottom mold 1 together. During disassembly, pulling the first limiting rod 11 causes it to slide out of the limiting groove 5, allowing the buckle 4 to move and be disassembled. This achieves the effect of rapid installation and disassembly, significantly shortening the construction cycle, improving turnover efficiency, enhancing site adaptability, and simplifying management. When the inner wall of the bottom mold 1 needs cleaning, a scraper 206 is installed, causing the scraper 206 to slide the second sliding rod 205 into the inner wall of the second mounting groove 204. Then, the rotating rod 207 is rotated, causing the rotating rod 207 to rotate the third limiting rod 208, thus preventing the second sliding rod 205 from being removed. The second sliding rod 205 slides in the sliding groove 203 on the inner wall of the second fixed rod 202, thereby driving the scraper 206 to move on the outer wall of the bottom mold 1, achieving the effect of cleaning the outer wall, protecting the precision of the mold, extending its service life, and simplifying operation while reducing labor and cost input.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast concrete box girder formwork, comprising a bottom formwork (1), characterized in that: The bottom front side of the bottom mold (1) is fixedly connected to a first support plate (3), and the front side of the first support plate (3) is fixedly connected to multiple buckles (4). Each of the multiple buckles (4) has a limiting groove (5) on the opposite side. The bottom rear side of the bottom mold (1) is fixedly connected to a second support plate (6). The inner wall of the second support plate (6) is provided with multiple first mounting grooves (7). The inner wall of each of the multiple first mounting grooves (7) is threaded with a spring (8). The front side of the spring (8) is slidably connected to a first sliding rod (9). The inner wall of the first sliding rod (9) is provided with a protrusion (10). The inner wall of the limiting groove (5) is slidably connected to a first limiting rod (11). The outer wall of the first limiting rod (11) is fixedly connected to a first limiting plate (12). The top of the bottom mold (1) is fixedly connected to a cleaning mechanism (2). The cleaning mechanism (2) is used for cleaning devices.

2. The precast concrete box girder formwork according to claim 1, characterized in that: The cleaning mechanism (2) includes a side mold (201), the bottom of which is fixedly connected to the top of the bottom mold (1). Multiple second fixing rods (202) are fixedly connected to the top left and right sides of the side mold (201). The inner walls of the multiple second fixing rods (202) are provided with sliding grooves (203). The inner walls of the sliding grooves (203) are slidably connected with second sliding rods (205). The top of the second fixing rods (202) is provided with a second mounting groove (204). The bottom of the second sliding rods (205) is fixedly connected with a scraper (206). The top of the second fixing rods (202) is rotatably connected with a rotating rod (207). The outer wall of the rotating rods (207) is rotatably connected with a third limiting rod (208).

3. A precast concrete box girder formwork according to claim 2, characterized in that: The top of the third limiting rod (208) is slidably connected to the second limiting rod (21), and the outer wall of the second limiting rod (21) is fixedly connected to the second limiting plate (22).

4. A precast concrete box girder formwork according to claim 2, characterized in that: Multiple first connecting rods (13) are fixedly connected to the outer walls of the multiple side molds (201) on the side away from each other, and the inner wall of the second mounting groove (204) is slidably connected to the outer wall of the second sliding rod (205).

5. A precast concrete box girder formwork according to claim 4, characterized in that: A first support rod (14) is fixedly connected to the top of a plurality of first connecting rods (13), and a second connecting rod (15) is fixedly connected to the adjacent side of a plurality of first support rods (14).

6. A precast concrete box girder formwork according to claim 5, characterized in that: Multiple first diagonal rods (16) are fixedly connected to each adjacent side of the multiple first support rods (14), and multiple second diagonal rods (17) are fixedly connected to each opposite side of the multiple first support rods (14).

7. A precast concrete box girder formwork according to claim 6, characterized in that: The top of the second diagonal bar (17) is fixedly connected to a second support bar (18), and the first fixing bar (19) is fixedly connected to the opposite side of the plurality of second support bars (18).

8. A precast concrete box girder formwork according to claim 5, characterized in that: Each of the first support rods (14) has a screw (20) threaded to its opposite side, and the adjacent side of each screw (20) is threaded to the opposite side of the first connecting rod (13).

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