Concrete pipe culvert joint

By designing a concrete pipe culvert joint, and utilizing a combination structure of connecting pipes, splicing pipes, assembly rings, and sealing rings, the sealing problem at the splicing points of concrete pipe culverts is solved, achieving efficient connection and sealing effects, and making it suitable for high-pressure media transportation in concrete pipe culverts.

CN224162213UActive Publication Date: 2026-04-24天津市管道自来水工程有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
天津市管道自来水工程有限公司
Filing Date
2025-06-20
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing methods for treating the joints of concrete pipe culverts are insufficient to achieve effective sealing, which can easily lead to leakage during the transportation of high-pressure media, affecting construction efficiency and results.

Method used

The concrete pipe culvert joint structure is adopted, including connecting pipe, splicing pipe, assembly ring and sealing ring. The detachable connection is achieved by bolt connection, and sealing ring and conical structure are set at the splicing part to improve the sealing performance.

Benefits of technology

It simplifies the assembly of pipe culvert components, improves the sealing effect of the joints, effectively prevents high-pressure medium leakage, and meets actual use requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a concrete pipe culvert connector. The concrete pipe culvert connector comprises a connecting pipe and two assembling rings. Splicing pipes coaxially communicated with the connecting pipe are arranged at the two ends of the connecting pipe, splicing pipes at the ends of the pipe culvert component are inserted into the splicing pipes, the inner diameter of the connecting pipe is equal to the inner diameter of the splicing pipes, the inner diameter of the splicing pipes is equal to the outer diameter of the splicing pipes, and a plugging ring is arranged between the end face of each splicing pipe and the end face of the connecting pipe. The splicing pipes of the two pipe culvert components are sleeved with the two assembling rings correspondingly, the assembling rings are detachably connected with the pipe culvert components, connecting rings are further arranged at the ends, away from the connecting pipes, of the splicing pipes, and the assembling rings are detachably connected with the connecting rings. According to the concrete pipe culvert connector, the splicing difficulty of adjacent pipe culvert components can be reduced, and the sealing effect of the splicing portion is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of culvert construction technology, and in particular relates to a concrete pipe culvert joint. Background Technology

[0002] A culvert is a prefabricated pipe structure buried beneath embankments, earthen dams, or natural ground surfaces to transport water across obstacles, protect pipelines, or provide small passageways. Based on their materials, culverts can be broadly classified into several types, including concrete culverts, corrugated steel culverts, plastic culverts, and clay culverts. Among these, concrete culverts are the most widely used due to their excellent load-bearing capacity and durability.

[0003] Since concrete culverts are mostly precast assembled components, during actual construction, workers need to splice adjacent sections of the culvert and properly treat the splice area to prevent leakage. In existing technology, the method for treating the splice area of ​​concrete culverts is relatively primitive. Workers usually add a precast concrete sleeve to the outside of the splice to seal it. However, adding the concrete sleeve is difficult and can easily affect the overall construction. Furthermore, the sealing effect of the concrete sleeve is limited, and leakage is likely to occur at the splice when high-pressure media are transported through the culvert, thus failing to meet practical usage requirements. Utility Model Content

[0004] In view of this, the present invention aims to provide a concrete pipe culvert joint to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A concrete culvert joint is provided between two adjacent culvert components, with a splicing pipe at the end of each culvert component. The concrete culvert joint includes a connecting pipe and two assembly rings. Both ends of the connecting pipe are provided with splicing pipes coaxially connected to the connecting pipe. The splicing pipe is inserted into the splicing pipe. The inner diameter of the connecting pipe is equal to the inner diameter of the splicing pipe, and the inner diameter of the splicing pipe is equal to the outer diameter of the splicing pipe. A sealing ring is provided between the end face of the splicing pipe and the end face of the connecting pipe. The two assembly rings are respectively sleeved on the outside of the splicing pipes of the two culvert components, and the assembly rings are detachably connected to the culvert components. A connecting ring is also provided at the end of the splicing pipe away from the connecting pipe, and the assembly rings are detachably connected to the connecting rings.

[0007] Furthermore, the assembly ring has a first sealing ring groove on the end face near the connecting ring, and a first sealing ring is provided inside the first sealing ring groove.

[0008] Furthermore, a second sealing ring groove is provided on the end face of the assembly ring away from the connecting ring, and a second sealing ring is provided inside the second sealing ring groove.

[0009] Furthermore, the sealing ring has a sealing outer conical surface on its side wall, and a sealing inner conical surface that mates with the sealing outer conical surface is provided at the end of the connecting pipe.

[0010] Furthermore, a compression ring is also provided on the side wall of the sealing ring.

[0011] Furthermore, the outer wall of the connecting pipe is provided with two pre-embedded ears, which are located on both sides of the axis of the connecting pipe. Each pre-embedded ear is provided with a receiving hole, and a guide rod is provided inside the receiving hole.

[0012] Furthermore, the assembly ring is provided with a plurality of first mounting holes arranged in a ring shape, and an assembly bolt is provided inside the first mounting holes. An assembly screw hole for accommodating the assembly bolt is provided on the end face of the culvert component.

[0013] Furthermore, the assembly ring is provided with a plurality of second mounting holes arranged in a ring shape, and a connecting bolt is provided inside the second mounting holes. The connecting ring is also provided with a plurality of connecting holes for accommodating the connecting bolt.

[0014] Compared with the prior art, the concrete pipe culvert joint of this utility model has the following advantages:

[0015] This utility model discloses a concrete culvert joint that enables convenient and effective connection between two adjacent culvert components, achieving a good sealing effect between them. During use, workers can connect the culvert component to the splicing pipe using the assembly ring, thus simplifying the assembly of adjacent culvert components and improving assembly efficiency. Furthermore, after the splicing pipe of the culvert component is inserted into the splicing pipe, the sealing ring ensures a good seal between the splicing pipe and the connecting pipe. When transporting high-pressure media through the culvert, the sealing ring effectively prevents leakage along the splice joint, thus meeting practical application requirements. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0017] Figure 1 This is a schematic diagram showing the usage state of the concrete pipe culvert joint described in this embodiment of the utility model;

[0018] Figure 2This is an exploded view of the concrete pipe culvert joint described in an embodiment of this utility model;

[0019] Figure 3 This is a cross-sectional view of the concrete pipe culvert joint described in this embodiment of the present invention in its service state;

[0020] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle;

[0021] Figure 5 This is a schematic diagram of the connecting pipe and sealing ring described in an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Culvert component; 11-Assembly pipe; 2-Connecting pipe; 21-Assembly pipe; 22-Connecting ring; 23-Sealing inner conical surface; 3-Assembly ring; 4-Sealing ring; 41-Sealing outer conical surface; 42-Extrusion ring; 51-First sealing ring; 52-Second sealing ring; 6-Embedded ear; 61-Accommodation hole; 7-Passing rod; 81-Assembly bolt; 82-Connecting bolt. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] A concrete pipe culvert joint is provided for installation between two adjacent pipe culvert components 1, thereby enabling the splicing of adjacent pipe culvert components 1 and achieving a good sealing effect at the splice site. Accordingly, to facilitate the assembly between the pipe culvert component 1 and this device, a splicing pipe 11 should be provided at the end of the pipe culvert component 1. During the prefabrication of the pipe culvert component 1, the splicing pipe 11 should be cast simultaneously with the pipe culvert component 1, and it should be ensured that the outer diameter of the splicing pipe 11 is smaller than the outer diameter of the pipe culvert component 1, while the inner diameter of the splicing pipe 11 is equal to the inner diameter of the pipe culvert component 1.

[0029] like Figure 2 and Figure 3 As shown, the concrete culvert joint in this embodiment includes a connecting pipe 2 and two assembly rings 3. At both ends of the connecting pipe 2, there are splicing pipes 21 coaxially connected to the connecting pipe 2. A connecting ring 22 is also provided at the end of the splicing pipe 21 furthest from the connecting pipe 2. The inner diameter of the connecting pipe 2 is equal to the inner diameter of the splicing pipe 11, and the inner diameter of the splicing pipe 21 is equal to the outer diameter of the splicing pipe 11. During assembly, the worker should first place the two assembly rings 3 onto the outside of the splicing pipes 11 of the two culvert components 1, then detachably connect the assembly rings 3 to the culvert components 1. Next, insert the splicing pipe 11 into the splicing pipe 21, and detachably connect the assembly rings 3 to the connecting rings 22, thereby completing the splicing between two adjacent culvert components 1.

[0030] Optionally, to achieve a detachable connection between the culvert component 1, the assembly ring 3, and the connecting ring 22, the assembly ring 3 may have multiple first mounting holes arranged in a ring shape. Assembly bolts 81 should be installed inside the first mounting holes, and assembly screw holes for accommodating the assembly bolts 81 should be provided on the end face of the culvert component 1. Correspondingly, the assembly ring 3 may also have multiple second mounting holes arranged in a ring shape, with connecting bolts 82 installed inside the second mounting holes, and multiple connecting holes for accommodating the connecting bolts 82 should be provided on the connecting ring 22. When splicing this device with two adjacent culvert components 1, workers can complete the detachable connection between the culvert component 1 and the assembly ring 3 using the assembly bolts 81, and complete the detachable connection between the assembly ring 3 and the connecting ring 22 using the connecting bolts 82.

[0031] In practical applications, the culvert may transport a high-pressure medium, which can leak out along the joint under pressure. To prevent this, this embodiment includes a sealing ring 4 between the end face of the splicing pipe 11 and the end face of the connecting pipe 2. Figure 4 As shown, after the assembly of this device with the culvert component 1 is completed, the end face of the splicing pipe 11 and the end face of the connecting pipe 2 will press against the sealing ring 4 from both sides. At this time, the sealing ring 4 will form an axial seal between the splicing pipe 11 and the connecting pipe 2, thereby improving the sealing effect of the splicing part.

[0032] Optionally, to improve the sealing capability of the sealing ring 4, such as... Figure 5 As shown, the sealing ring 4 may have a sealing outer conical surface 41 on its side wall, and a sealing inner conical surface 23 that mates with the sealing outer conical surface 41 is provided at the end of the connecting pipe 2. After the assembly of this device with the culvert component 1 is completed, the sealing outer conical surface 41 and the sealing inner conical surface 23 will fit tightly together. When there is a high pressure in the medium inside the culvert, the medium pressure will increase the fit between the sealing outer conical surface 41 and the sealing inner conical surface 23, so that this device is more adaptable to the sealing requirements under high pressure medium transportation conditions.

[0033] In addition, in this embodiment, a compression ring 42 may be provided on the side wall of the sealing ring 4. After the assembly between this device and the culvert component 1 is completed, the presence of the compression ring 42 will increase the sealing contact area between the splice pipe 11 and the connecting pipe 2, thereby further improving the axial sealing effect produced by this device.

[0034] As an optional implementation of this embodiment, to further improve the sealing capability of the splicing part, the assembly ring 3 is also provided with a first sealing ring 51 and a second sealing ring 52. Specifically, the end face of the assembly ring 3 near the connecting ring 22 is provided with a first sealing ring groove, and the first sealing ring 51 is disposed inside the first sealing ring groove. The end face of the assembly ring 3 away from the connecting ring 22 is provided with a second sealing ring groove, and the second sealing ring 52 is disposed inside the second sealing ring groove. By providing the first sealing ring 51 and the second sealing ring 52, the splicing part of this device and the culvert component 1 can obtain a radial sealing effect, thereby further improving the sealing capability of the splicing part.

[0035] As another optional implementation of this embodiment, two pre-embedded ears 6 can be provided on the outer wall of the connecting pipe 2. The two pre-embedded ears 6 should be located on both sides of the axis of the connecting pipe 2, and each pre-embedded ear 6 should be provided with a receiving hole 61. When the connecting pipe 2 is transported, the pre-embedded ears 6 can be used as lifting points to facilitate the lifting of the connecting pipe 2. After the assembly of this device with the culvert component 1 is completed, the workers can also set a guide rod 7 inside the receiving hole 61, so as to effectively connect multiple devices on the culvert with the help of the guide rod 7, thereby improving the integrity and load-bearing capacity of the culvert.

[0036] The effects of the above solution are explained below:

[0037] This embodiment provides a concrete pipe culvert joint that connects the culvert component and the spliced ​​pipe through an assembly ring. This simplifies the assembly of adjacent culvert components and improves the efficiency of assembly. Furthermore, the sealing ring ensures a good seal between the spliced ​​pipe and the connecting pipe. When transporting high-pressure media through the culvert, the sealing ring effectively prevents leakage along the joint, thus meeting practical application requirements.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 concrete pipe culvert joint, disposed between two adjacent pipe culvert components (1), and wherein each pipe culvert component (1) has an insertion pipe (11) at its end, characterized in that: The concrete culvert joint includes a connecting pipe (2) and two assembly rings (3); both ends of the connecting pipe (2) are provided with splicing pipes (21) coaxially connected to the connecting pipe (2), the splicing pipe (11) is inserted into the splicing pipe (21), the inner diameter of the connecting pipe (2) is equal to the inner diameter of the splicing pipe (11), the inner diameter of the splicing pipe (21) is equal to the outer diameter of the splicing pipe (11), and a sealing ring (4) is provided between the end face of the splicing pipe (11) and the end face of the connecting pipe (2); the two assembly rings (3) are respectively sleeved on the outside of the splicing pipes (11) of the two culvert components (1), and the assembly rings (3) are detachably connected to the culvert components (1). A connecting ring (22) is also provided at the end of the splicing pipe (21) away from the connecting pipe (2), and the assembly rings (3) are detachably connected to the connecting rings (22).

2. A concrete pipe culvert joint according to claim 1, characterized in that: The assembly ring (3) has a first sealing ring groove on its end face near the connecting ring (22), and a first sealing ring (51) is provided inside the first sealing ring groove.

3. A concrete pipe culvert joint according to claim 1, characterized in that: The assembly ring (3) has a second sealing ring groove on the end face away from the connecting ring (22), and a second sealing ring (52) is provided inside the second sealing ring groove.

4. A concrete pipe culvert joint according to claim 1, characterized in that: The sealing ring (4) has a sealing outer cone surface (41) on its side wall, and a sealing inner cone surface (23) that cooperates with the sealing outer cone surface (41) is provided at the end of the connecting pipe (2).

5. A concrete pipe culvert joint according to claim 1, characterized in that: The sealing ring (4) is also provided with a compression ring (42) on its side wall.

6. A concrete pipe culvert joint according to claim 1, characterized in that: The outer wall of the connecting pipe (2) is provided with two pre-embedded ears (6), which are located on both sides of the axis of the connecting pipe (2). Each pre-embedded ear (6) is provided with a receiving hole (61), and a guide rod (7) is provided inside the receiving hole (61).

7. A concrete pipe culvert joint according to claim 1, characterized in that: The assembly ring (3) is provided with a plurality of first mounting holes arranged in a ring shape, and an assembly bolt (81) is provided inside the first mounting hole. The end face of the culvert component (1) is provided with an assembly screw hole for accommodating the assembly bolt (81).

8. A concrete pipe culvert joint according to claim 1, characterized in that: The assembly ring (3) is provided with a plurality of second mounting holes arranged in a ring shape, and a connecting bolt (82) is provided inside the second mounting holes. The connecting ring (22) is provided with a plurality of connecting holes for accommodating the connecting bolt (82).