Reinforced concrete box culvert convenient to splice

By introducing components such as bottom plate sliding connection, limiting protrusions and concave blocks, and lifting rings into the reinforced concrete box culvert, the problem of manual movement during the culvert splicing process was solved, achieving a fast and firm connection effect and improving construction efficiency.

CN224063298UActive Publication Date: 2026-03-31YANGGU TIANMA BUILDING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing reinforced concrete box culverts require manual movement during the splicing process, resulting in low construction efficiency and increased time.

Method used

The system employs a sliding connection of the base plate, limiting protrusions and concave blocks in conjunction with lifting rings and auxiliary components. It utilizes a crane for rapid lifting and pulleys for moving the culvert body, and ensures the firmness and sealing of the connection through pouring holes and pouring rings.

Benefits of technology

This enabled rapid and secure connection of the culvert body, reducing construction time, preventing leakage and wear at the connection points, and improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The reinforced concrete box culvert convenient to splice comprises a culvert body, the bottom of the culvert body is connected with a bottom plate in a sliding mode, the top end of the bottom plate is provided with a sliding groove, the inner side of the sliding groove is movably connected with an auxiliary assembly, the bottom end of the culvert body is provided with a fixing assembly, the inner side of the culvert body is fixedly connected with a framework, and the framework is fixedly connected with the bottom end of the culvert body. The reinforced concrete box culvert convenient to splice comprises a culvert body, a limiting convex block is fixedly connected to one end of the culvert body, a sealing assembly is arranged on the outer side of the limiting convex block, a limiting concave block is fixedly connected to the other end of the culvert body, and hoisting rings are fixedly connected to the four corners of the top end of the culvert body. The hoisting rings are fixed to the top ends of the culvert bodies, hoisting of the culvert bodies by a crane can be facilitated, the limiting concave blocks and the limiting convex blocks can play a positioning role to accelerate splicing of the two culvert bodies, the culvert bodies can be rapidly moved through the auxiliary assemblies, and the construction time is shortened.
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Description

Technical Field

[0001] This utility model relates to the field of reinforced concrete box culvert technology, specifically to a reinforced concrete box culvert that is easy to assemble. Background Technology

[0002] A reinforced concrete box culvert is a culvert whose body is constructed with reinforced concrete box-shaped pipe sections. The box culvert consists of one or more square or rectangular cross sections. Currently, in order to significantly shorten the construction period, prefabricated reinforced concrete box culverts are used. After being lifted to the installation position by a crane, they can be spliced ​​together.

[0003] The construction of culverts usually involves prefabricated culvert bodies being assembled on-site. During the assembly process, the connection between two culvert bodies is typically achieved by manually moving the assembled culvert body to the appropriate position. This method increases working time and reduces efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a reinforced concrete box culvert that is easy to assemble, in order to solve the problem mentioned in the background art of using manual labor to slowly move the assembled culvert to the appropriate position when connecting two culverts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reinforced concrete box culvert that is easy to assemble, comprising a culvert body, a bottom plate slidably connected to the bottom of the culvert body, a groove formed at the top of the bottom plate, an auxiliary component movably connected to the inner side of the groove, a fixing component at the bottom of the culvert body, a frame fixedly connected to the inner side of the culvert body, a limiting protrusion fixedly connected to one end of the culvert body, a sealing component provided on the outer side of the limiting protrusion, a limiting concave block fixedly connected to the other end of the culvert body, and lifting rings fixedly connected to the four corners of the top of the culvert body. By fixing the lifting rings to the top of the culvert body, it is convenient for the crane to lift the culvert body. The use of the limiting concave block and the limiting protrusion can play a positioning role to speed up the assembly of two culvert bodies. The auxiliary component can enable the culvert body to move quickly, reducing construction time.

[0006] Preferably, the auxiliary component includes a movable block, with multiple telescopic arms fixedly connected to the inner side of the bottom end of the movable block. A connecting frame is fixedly connected between one end of the multiple telescopic arms, and multiple pulleys are rotatably connected to both sides of the connecting frame. The pulleys are made of highly elastic rubber, and the telescopic arms control the pulleys to contact the culvert body, so that the culvert body moves quickly.

[0007] Preferably, the fixing component includes two connecting grooves, which are opened on both sides of the bottom end of the culvert. Multiple pouring holes are opened on the inner side of the connecting grooves, which can make the connection between the culvert and the concrete more secure.

[0008] Preferably, the sealing assembly includes two buffer pads, one side of each buffer pad being fixedly connected to one end of the limiting protrusion and the limiting recess. The limiting protrusion and the limiting recess are of the same size. A sealing gasket is fixedly connected at the connection between the limiting protrusion and the limiting recess. The sealing gasket can seal the connection of the culvert and prevent water leakage. The buffer pad can prevent the limiting protrusion and the limiting recess from wearing during splicing, thus preventing the connection from being tightly connected.

[0009] Preferably, both ends of the culvert are provided with casting grooves, and one side of the casting groove is fixedly connected with multiple casting rings. One end of the casting groove is provided with multiple casting holes. The casting rings and casting holes can make the connection between the outer connection of the culvert and the concrete more secure, avoid the connection from splitting and corroding.

[0010] Preferably, one end of the casting ring and the bottom end of the lifting ring are fixedly connected to the outside of the skeleton, respectively. The casting ring, the lifting ring and the skeleton are all made of steel bars. The casting ring, the lifting ring and the skeleton made of steel bars are more robust and also increase the hardness of the culvert, making the culvert more compact.

[0011] Preferably, the chute has multiple pouring holes on both sides, and the size of the chute is the same as the size of the connecting channel. The pouring holes make the concrete more firmly connected to the base plate during filling.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By pre-installing the base plate, it can prevent the two culverts from deviating during splicing due to terrain, which would lead to leakage in the reinforced concrete box culvert. By setting pulleys at the top of the base plate, the movement of the culvert can be accelerated, reducing the splicing time of the two culverts. The three pouring holes at the bottom of the culvert and the one pouring hole at the top of the base plate can tightly fix the culvert to the base plate during concrete filling. By setting a pouring ring and a second pouring hole on the outside of the connection between the two culverts, the two culverts can be firmly fixed during concrete pouring, preventing separation at the connection. The buffer pad and sealing pad on the inside of the connection can prevent water leakage at the connection and reduce wear at the connection during splicing, thus preventing damage to the connection and reducing its sealing performance. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 This is a schematic diagram showing the connection between the culvert and the base plate of this utility model;

[0015] Figure 3 This is a three-dimensional schematic diagram of the culvert of this utility model;

[0016] Figure 4 This is a schematic diagram of the auxiliary component architecture of this utility model;

[0017] Figure 5 This is a half-sectional view of the culvert of this utility model.

[0018] In the diagram: 1. Culvert body; 2. Base plate; 3. Moving block; 4. Telescopic arm; 5. Connecting frame; 6. Pulley; 7. Slide groove; 8. Pouring hole one; 9. Lifting ring; 10. Pouring ring; 11. Pouring hole two; 12. Limiting protrusion; 13. Buffer pad; 14. Sealing gasket; 15. Pouring hole three; 16. Connecting groove; 17. Frame; 18. Limiting recess. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1-5 This utility model provides a reinforced concrete box culvert that is easy to assemble, including a culvert body 1. A bottom plate 2 is slidably connected to the bottom of the culvert body 1. A groove 7 is opened at the top of the bottom plate 2. An auxiliary component is movably connected to the inner side of the groove 7. A fixing component is provided at the bottom of the culvert body 1. A frame 17 is fixedly connected to the inner side of the culvert body 1. A limiting protrusion 12 is fixedly connected to one end of the culvert body 1. A sealing component is provided on the outer side of the limiting protrusion 12. A limiting recess 18 is fixedly connected to the other end of the culvert body 1. Lifting rings 9 are fixedly connected to the four corners of the top of the culvert body 1.

[0021] Furthermore, the auxiliary components include a movable block 3, with multiple telescopic arms 4 fixedly connected to the inner side of the bottom end of the movable block 3. A connecting frame 5 is fixedly connected between one end of the multiple telescopic arms 4. Multiple pulleys 6 are rotatably connected to both sides of the connecting frame 5. The pulleys 6 are made of highly elastic rubber. When the telescopic arms 4 are raised, the connecting frame 5 is raised, which in turn drives the multiple pulleys 6 to rise.

[0022] Furthermore, the fixing component includes two connecting grooves 16, which are opened on both sides of the bottom end of the culvert 1. Multiple pouring holes 3 15 are opened on the inner side of the connecting grooves 16, so that the concrete can enter the pouring holes 3 15 during filling, thereby increasing the contact area between the concrete and the culvert 1.

[0023] Furthermore, the sealing assembly includes two buffer pads 13, one side of which is fixedly connected to one end of the limiting protrusion 12 and the limiting recess 18, respectively. The limiting protrusion 12 and the limiting recess 18 are of the same size. A sealing gasket 14 is fixedly connected at the connection between the limiting protrusion 12 and the limiting recess 18. The limiting protrusion 12 and the limiting recess 18 contact and compress the buffer pads 13 to prevent wear on the limiting protrusion 12 and the limiting recess 18.

[0024] Furthermore, both ends of the culvert 1 are provided with casting grooves, and multiple casting rings 10 are fixedly connected to one side of the casting groove. Multiple casting holes 11 are provided at one end of the casting groove.

[0025] Furthermore, one end of the casting ring 10 and the bottom end of the lifting ring 9 are fixedly connected to the outer side of the frame 17, respectively. The casting ring 10, the lifting ring 9 and the frame 17 are all made of steel bars. The crane can lift the culvert 1 more quickly by connecting with the lifting ring 9.

[0026] Furthermore, multiple pouring holes 8 are provided on both sides of the chute 7, and the size of the chute 7 is the same as the size of the connecting groove 16.

[0027] In this embodiment, the ground needs to be pre-treated before construction. Then, the base plate 2 is laid according to the planned route. The entire movable block 3 is then placed inside the chute 7 at the top of the base plate 2. The crane, connected to the lifting ring 9, lifts the culvert 1 to the top of the base plate 2. Then, according to the position of the connecting groove 16 and the chute 7, the culvert 1 is lowered to the top of the base plate 2 and fixed with concrete. By controlling the telescopic arm 4, the connecting frame 5 drives multiple pulleys 6 to descend, which can move the movable block 3 as a whole. The crane is then used to lift the next culvert 1 to the top of the movable block 3 in the same way. The telescopic arm 4 is controlled to lift the connecting frame 5 and pulleys 6 to rise, so that the culvert 1 is detached from the top of the base plate 2. By rotating the pulleys 6, the culvert 1 can be quickly moved and connected. By connecting and fixing the pouring rings 10 on both sides, and then pouring concrete, the two culverts 1 can be tightly connected. The sealing gasket 14 is fixed at the connection point on the inner side of the two culverts 1. Then the movable block 3 is removed. The above steps are repeated to complete the splicing of the reinforced concrete box culvert.

[0028] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A reinforced concrete box culvert with easy splicing, comprising a culvert body (1), characterized in that: The bottom of the body (1) is slidably connected with a bottom plate (2), the top end of the bottom plate (2) is provided with a sliding groove (7), the inner side of the sliding groove (7) is movably connected with an auxiliary assembly, the bottom end of the body (1) is provided with a fixing assembly, the inner side of the body (1) is fixedly connected with a framework (17), one end of the body (1) is fixedly connected with a limiting protrusion (12), the outer side of the limiting protrusion (12) is provided with a sealing assembly, the other end of the body (1) is fixedly connected with a limiting recess (18), and the top end of the body (1) is fixedly connected with a lifting ring (9) at four corners.

2. A reinforced concrete box culvert with easy splicing according to claim 1, characterized in that: The auxiliary assembly comprises a moving block (3), the bottom end of the moving block (3) is fixedly connected with a plurality of telescopic arms (4), one end of the plurality of telescopic arms (4) is fixedly connected with a connecting frame (5), the two sides of the connecting frame (5) are rotatably connected with a plurality of pulleys (6), and the pulleys (6) are made of high-elastic rubber.

3. A ready-to-assemble reinforced concrete box culvert according to claim 1, characterized in that: The fixing assembly comprises two communication grooves (16), the two communication grooves (16) are arranged at the bottom ends of the body (1) on both sides, and a plurality of pouring holes (15) are arranged in the inner sides of the communication grooves (16).

4. A ready-to-assemble reinforced concrete box culvert according to claim 1, wherein: The sealing assembly comprises two buffer pads (13), one end of the two buffer pads (13) is fixedly connected with the limiting protrusion (12) and the limiting recess (18) respectively, the limiting protrusion (12) and the limiting recess (18) are matched in size, and the connecting part of the limiting protrusion (12) and the limiting recess (18) is fixedly connected with a sealing pad (14).

5. A ready-to-assemble reinforced concrete box culvert according to claim 1, wherein: Both ends of the body (1) are provided with pouring grooves on both sides, a plurality of pouring rings (10) are fixedly connected to one side of the pouring grooves, and a plurality of pouring holes (11) are arranged at one end of the pouring grooves.

6. A reinforced concrete box culvert with easy splicing according to claim 5, characterized in that: One end of the pouring ring (10) and the bottom end of the lifting ring (9) are fixedly connected to the outer side of the framework (17), and the pouring ring (10), the lifting ring (9) and the framework (17) are all made of steel bars.

7. A prefabricated reinforced concrete box culvert according to claim 3, characterized in that: A plurality of pouring holes (8) are arranged on the two sides of the sliding groove (7), and the size of the sliding groove (7) is the same as that of the communication groove (16).