culvert

Abstract

This invention belongs to the field of water conveyance engineering technology and discloses a culvert, including two arc-shaped plates and a support rod. One arc-shaped plate has an overlapping portion, and the other arc-shaped plate has a receiving portion. When the overlapping portion is connected to the receiving portion, the two arc-shaped plates form a circular pipe. A threaded connector is provided on the concave surface of one arc-shaped plate, and an installation groove is provided on the concave surface of the other arc-shaped plate. One end of the support rod is screwed to the threaded connector, and the other end is inserted into the installation groove and abuts against the bottom of the groove. The support rod extends radially along the circular pipe. First, one end of the support rod is screwed to the threaded connector on one arc-shaped plate; then, the overlapping portion of one arc-shaped plate is connected to the receiving portion of the other arc-shaped plate, so that the other end of the support rod is inserted into the installation groove and abuts against the bottom of the groove, and the two arc-shaped plates form a circular pipe. The support rod supports the circular pipe wall inside the circular pipe, resulting in good pressure resistance of the culvert. Due to the firm connection between the support rod and the circular pipe wall, the culvert has high pressure resistance reliability.

Description

Technical Field

[0001] This invention relates to the field of water conveyance engineering technology, and in particular to a culvert. Background Technology

[0002] A culvert is a pipe buried underground, made of reinforced concrete, commonly known as a cement pipe, and is often used as a water supply pipeline. The inner diameter of a culvert generally ranges from 100mm to 2000mm. When buried underground, people or vehicles still pass on the surface. Therefore, culverts need to have a certain pressure resistance to avoid rupture after being subjected to pressure for a long time, which could lead to sewage leakage and other consequences.

[0003] The patent document with authorization announcement number CN 207017397 U discloses a pressure-resistant and shock-absorbing cement culvert, including a pipe body, a pressure-resistant ring, a support plug, and a support rod. The pressure-resistant ring is sleeved inside the pipe body, and the outer wall of the pressure-resistant ring is attached to the inner wall of the pipe body. The support plug is provided on the inner wall of the pressure-resistant ring. The two ends of the support rod abut against the two support plugs respectively, and the support rod extends radially along the circular pipe, thereby providing support for the pipe body and preventing the pipe body from breaking under pressure.

[0004] However, the connection between the support rod and the support plug is not firm. After a period of use, the support plug or support rod may deform, and the support rod may easily fall off the support plug, thus losing its supporting effect. Summary of the Invention

[0005] The purpose of this invention is to provide a culvert with high structural strength and strong compressive reliability.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Culverts, including:

[0008] Two arc-shaped plates, one of which has an overlapping part and the other has a receiving part. When the overlapping part is connected to the receiving part, the two arc-shaped plates form a circular tube. A screw is provided on the concave surface of one arc-shaped plate and a mounting groove is provided on the concave surface of the other arc-shaped plate.

[0009] A support rod is provided with external threads. One end of the support rod is screwed to the screw connector, and the other end is inserted into the mounting groove and abuts against the bottom of the mounting groove. The support rod extends radially along the circular tube.

[0010] Optionally, the support rods are provided in multiple sets, each set of the support rods including multiple support rods spaced apart, and the multiple support rods are at an angle to each other.

[0011] Optionally, the support rod includes a first rod, a second rod, and a connecting sleeve, wherein the ends of the first rod and the second rod away from each other are respectively connected to the two arc-shaped plates, and the ends close to each other are connected through the connecting sleeve.

[0012] Optionally, the circular tube includes a plug end and a receiving end, and the plug end of one circular tube can be plugged into the receiving end of another circular tube.

[0013] Optionally, it also includes a connecting component, which includes a flexible connecting tube, through which the two circular tubes are connected.

[0014] Optionally, the connecting assembly further includes a first bolt and a first nut, the first nut being disposed on the concave surface of the arc-shaped plate, the flexible connecting tube being provided with a connecting hole, and the first bolt passing through the connecting hole and screwed onto the first nut.

[0015] Optionally, the connecting assembly further includes a first connecting ring and a second connecting ring, wherein the first connecting ring is coaxially disposed at the end of the circular tube, and the second connecting ring is coaxially disposed at the end of the flexible connecting tube, and the first connecting ring is connected to the second connecting ring.

[0016] Optionally, the connecting assembly further includes a locking member, wherein the first connecting ring has a first hole and the second connecting ring has a second hole, and the locking member passes through the first hole and the second hole.

[0017] Optionally, the first connecting ring and the second connecting ring are connected by welding.

[0018] Optionally, the curved plate is made of UHPC material.

[0019] The beneficial effects of this invention are:

[0020] The culvert provided by this invention includes two arc-shaped plates and a support rod. First, one end of the support rod is screwed onto a threaded connector on one arc-shaped plate. Then, the mounting groove on the other arc-shaped plate is aligned with the other end of the support rod, and the overlapping portion of one arc-shaped plate is connected to the receiving portion of the other arc-shaped plate, so that the other end of the support rod is inserted into the mounting groove and abuts against the bottom of the groove, with the two arc-shaped plates forming a circular tube. The support rod, extending radially along the circular tube, supports the tube wall within the tube, resulting in high structural strength and good compressive resistance of the culvert. Because one end of the support rod is threaded onto the threaded connector on the arc-shaped plate, and the other end is inserted into the mounting groove on the arc-shaped plate, the connection between the support rod and the tube wall is firm, the support rod has high reliability, and consequently, the culvert has high compressive resistance. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of two arc-shaped plates provided in Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection between two arc-shaped plates provided in Embodiment 1 of the present invention;

[0023] Figure 3 This is a schematic diagram of a connection form between a circular tube and a support rod provided in Embodiment 1 of the present invention;

[0024] Figure 4 This is a cross-sectional view of a connection form between a circular tube and a support rod provided in Embodiment 1 of the present invention;

[0025] Figure 5 This is a schematic diagram of another connection form between the circular tube and the support rod provided in Embodiment 1 of the present invention;

[0026] Figure 6 This is a cross-sectional view of another connection form between the circular tube and the support rod provided in Embodiment 1 of the present invention;

[0027] Figure 7 This is a schematic diagram of the support rod provided in Embodiment 1 of the present invention;

[0028] Figure 8 This is a cross-sectional view of the connection between two circular tubes provided in Embodiment 1 of the present invention;

[0029] Figure 9 This is a cross-sectional view of the connection between two circular tubes provided in Embodiment 2 of the present invention;

[0030] Figure 10 This is a schematic diagram of the connection between two circular tubes provided in Embodiment 3 of the present invention;

[0031] Figure 11 This is a schematic diagram of the connection between two circular tubes provided in Embodiment 4 of the present invention.

[0032] In the picture:

[0033] 1. Curved plate; 11. Overlap joint; 12. Supporting part;

[0034] 2. Support rod; 21. First rod; 22. Second rod; 23. Connecting sleeve;

[0035] 3. Connecting assembly; 31. Flexible connecting tube; 32. First connecting ring; 33. Second connecting ring; 34. Locking element; 35. Second sealing ring. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0037] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0040] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] A culvert is a pipe made of reinforced concrete and buried underground. It is widely used in water conveyance projects.

[0043] like Figures 1-8As shown, this embodiment provides a culvert, including two arc-shaped plates 1 and a support rod 2. One arc-shaped plate 1 is provided with an overlapping portion 11, and the other arc-shaped plate 1 is provided with a receiving portion 12. When the overlapping portion 11 is connected to the receiving portion 12, the two arc-shaped plates 1 form a circular tube. A threaded connector is provided on the concave surface of one arc-shaped plate 1, and an installation groove is provided on the concave surface of the other arc-shaped plate 1. The support rod 2 is provided with external threads. One end of the support rod 2 is screwed to the threaded connector, and the other end is inserted into the installation groove and abuts against the bottom of the installation groove. The support rod 2 extends radially along the circular tube.

[0044] During construction, firstly, one end of the support rod 2 is screwed onto a threaded connector on an arc-shaped plate 1. Then, the mounting groove on another arc-shaped plate 1 is aligned with the other end of the support rod 2, and the overlapping part 11 of one arc-shaped plate 1 is connected to the receiving part 12 of the other arc-shaped plate 1, so that the other end of the support rod 2 is inserted into the mounting groove and abuts against the bottom of the groove, with the two arc-shaped plates 1 forming a circular tube. The support rod 2, extending radially along the circular tube, supports the wall of the circular tube, resulting in high structural strength and good compressive resistance of the culvert. Because one end of the support rod 2 is threaded onto the threaded connector on the arc-shaped plate 1, and the other end is inserted into the mounting groove on the arc-shaped plate 1, the connection between the support rod and the circular tube wall is firm, the support rod has high reliability, and consequently, the culvert has high compressive resistance.

[0045] The specific structure of the culvert provided in this embodiment will be described below.

[0046] like Figure 1 and Figure 2 As shown, the culvert includes two arc-shaped plates 1. One arc-shaped plate 1 has an overlapping portion 11, and the other arc-shaped plate 1 has a receiving portion 12. When the overlapping portion 11 is connected to the receiving portion 12, the two arc-shaped plates 1 form a circular pipe for water transport. In this embodiment, the overlapping portion 11 and the receiving portion 12 are stepped in shape to match each other, making the connection between the two arc-shaped plates 1 convenient and firm, and preventing water leakage at the connection point.

[0047] Furthermore, the curved slab 1 is made of UHPC (Ultra-High Performance Concrete), which has low porosity and high density, good impermeability and corrosion resistance, and can effectively protect the internal steel bars of the curved slab 1 from corrosion and improve the service life of the culvert. For example, the reinforcement ratio of the curved slab 1 is determined according to the design strength.

[0048] like Figure 3As shown, a threaded connector is provided on the concave surface of one arc-shaped plate 1, and an installation groove is provided on the concave surface of another arc-shaped plate 1. The support rod 2 has external threads. One end of the support rod 2 is threaded to the threaded connector, and the other end is inserted into the installation groove and abuts against the bottom of the groove. The support rod 2 extends radially along the circular pipe, thus supporting the pipe wall within the circular pipe. This results in high structural strength and good compressive resistance for the culvert. Because one end of the support rod 2 is threaded to the threaded connector on the arc-shaped plate 1, and the other end is inserted into the installation groove on the arc-shaped plate 1, the connection between the support rod 2 and the circular pipe wall is firm, resulting in strong support reliability and consequently, strong compressive resistance reliability for the culvert. In this embodiment, the threaded connector is embedded in the arc-shaped plate 1 during casting, ensuring a stable position. For example, the threaded connector includes a second nut. The support rod 2 is made of steel reinforcement or stainless steel, providing high strength and a long service life. The walls of the mounting slot are covered with a rubber sealing layer to prevent the support rod 2 inserted into the mounting slot from shaking.

[0049] Furthermore, such as Figures 3-6 As shown, multiple sets of support rods 2 are provided, each set including multiple spaced support rods 2, which are angled to each other to ensure uniform support of the circular tube and prevent blockage inside the circular tube. This embodiment provides two connection methods between the circular tube and the support rods 2, such as... Figure 3 and Figure 4 As shown, each set of support rods 2 includes two support rods 2 that are perpendicular to each other. Figure 5 and Figure 6 As shown, each set of support rods 2 includes three intersecting support rods 2.

[0050] Furthermore, such as Figure 7 As shown, the support rod 2 includes a first rod 21, a second rod 22, and a connecting sleeve 23. The ends of the first rod 21 and the second rod 22 furthest from each other are respectively connected to two arc-shaped plates 1, and the ends closest to each other are connected by the connecting sleeve 23. By sequentially connecting the first rod 21, the connecting sleeve 23, and the second rod 22, the problem of inconvenient screwing when the inner diameter of the circular tube is large and the support rod 2 is long can be solved. In this embodiment, the connecting sleeve 23 is provided with internal threads, and the first rod 21 and the second rod 22 are respectively screwed to both ends of the connecting sleeve 23, so that the connection is firm.

[0051] Furthermore, such as Figure 8As shown, the circular pipe includes a plug end and a receiving end. The plug end of one circular pipe can be inserted into the receiving end of another circular pipe, making the connection between the circular pipes quick and convenient. In this embodiment, the plug end and the receiving end are funnel-shaped to prevent water leakage at the connection. In other embodiments, a first sealing ring can be provided at the connection between the plug end and the receiving end for better water leakage prevention. For example, the first sealing ring is made of rubber, which has high elasticity and good sealing effect. The two circular pipes provided in this embodiment are directly connected by plugging, which is suitable for situations where the culvert installation surface is relatively flat.

[0052] Example 2

[0053] This embodiment provides a culvert, wherein components that are the same as or corresponding to those in Embodiment 1 are labeled with the same reference numerals as those in Embodiment 1. For simplicity, only the differences between Embodiment 2 and Embodiment 1 are described. The differences are as follows:

[0054] like Figure 9 As shown, the culvert provided in this embodiment also includes a connecting component 3, which includes a flexible connecting pipe 31. The two round pipes are connected by the flexible connecting pipe 31, so that when the installation surface of the culvert is uneven, the flexible connecting pipe 31 acts as a transition, making the connection smooth. In this embodiment, the flexible connecting pipe 31 is a polytetrafluoroethylene (PTFE) flexible hose or rubber tube, which has strong deformation capacity and can adapt to uneven installation surfaces.

[0055] Furthermore, the connecting component 3 also includes a first bolt and a first nut. The first nut is disposed on the concave surface of the arc-shaped plate 1. The flexible connecting pipe 31 is provided with a connecting hole. The first bolt passes through the connecting hole and is screwed onto the first nut. The round pipe and the flexible connecting pipe 31 are connected by the first bolt and the first nut, which is quick and convenient. This method has a short construction time and is suitable for temporary water supply projects or projects with low water pressure.

[0056] Example 3

[0057] This embodiment provides a culvert, wherein components that are the same as or corresponding to those in Embodiment 2 are labeled with the same reference numerals as those in Embodiment 2. For simplicity, only the differences between Embodiment 3 and Embodiment 2 are described. The differences are as follows:

[0058] like Figure 10 As shown, the connecting assembly 3 also includes a first connecting ring 32 and a second connecting ring 33. The first connecting ring 32 is coaxially disposed at the end of the circular tube, and the second connecting ring 33 is coaxially disposed at the end of the flexible connecting tube 31. The first connecting ring 32 is connected to the second connecting ring 33. The circular tube and the flexible connecting tube 31 are connected by the first connecting ring 32 and the second connecting ring 33, making the connection tight and preventing water leakage at the connection point. In this embodiment, each arc plate 1 is provided with a semi-ring. When two arc plates 1 form a circular tube, the two semi-rings are spliced ​​together to form the first connecting ring 32.

[0059] Specifically, the connecting assembly 3 also includes a locking element 34. A first hole is provided on the first connecting ring 32, and a second hole is provided on the second connecting ring 33. The locking element 34 passes through both the first and second holes. In this embodiment, both the first connecting ring 32 and the second connecting ring 33 are flanges, and the locking element 34 includes a second bolt. This method is easy to construct, has excellent water-proofing effect, and is suitable for most projects.

[0060] Furthermore, the connecting assembly 3 also includes a second sealing ring 35, which is sandwiched between the first connecting ring 32 and the second connecting ring 33 to further enhance the tightness of the connection. For example, the second sealing ring 35 is made of rubber, which has high elasticity and good sealing effect.

[0061] Example 4

[0062] This embodiment provides a culvert, wherein components that are the same as or corresponding to those in Embodiment 3 are labeled with the same reference numerals as those in Embodiment 3. For simplicity, only the differences between Embodiment 4 and Embodiment 3 are described. The differences are as follows:

[0063] like Figure 11 As shown, the first connecting ring 32 and the second connecting ring 33 are connected by welding, resulting in a tight and leak-proof connection. This method requires on-site welding and is suitable for projects with high waterproofing requirements and ample time. In this embodiment, both the first connecting ring 32 and the second connecting ring 33 are metal rings. For example, the first connecting ring 32 and the second connecting ring 33 are made of stainless steel, which is rust-resistant and has a long service life.

[0064] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. Culvert, characterized in that include: Two arc-shaped plates (1), one of which has an overlapping part (11) and the other has a receiving part (12). When the overlapping part (11) is connected to the receiving part (12), the two arc-shaped plates (1) form a circular tube. A screw is provided on the concave surface of one arc-shaped plate (1) and a mounting groove is provided on the concave surface of the other arc-shaped plate (1). Support rod (2), the support rod (2) is provided with external thread, one end of the support rod (2) is screwed to the screw connector, the other end is inserted into the mounting groove and abuts against the bottom of the mounting groove, and the support rod (2) extends radially along the round tube; The curved plate (1) is made of UHPC material.

2. The culvert of claim 1, wherein, The support rod (2) is provided in multiple sets, and each set of the support rod (2) includes multiple support rods (2) arranged at intervals, and the multiple support rods (2) are at an angle to each other.

3. The culvert of claim 1, wherein, The support rod (2) includes a first rod (21), a second rod (22) and a connecting sleeve (23). The ends of the first rod (21) and the second rod (22) away from each other are respectively connected to the two arc-shaped plates (1), and the ends close to each other are connected by the connecting sleeve (23).

4. The duct of claim 1, wherein, The circular tube includes a plug end and a receiving end, and the plug end of one circular tube can be plugged into the receiving end of another circular tube.

5. The duct of claim 1, wherein, It also includes a connecting component (3), which includes a flexible connecting tube (31) through which the two round tubes are connected.

6. The culvert according to claim 5, characterized in that, The connecting assembly (3) further includes a first bolt and a first nut. The first nut is disposed on the concave surface of the arc plate (1). The flexible connecting tube (31) is provided with a connecting hole. The first bolt passes through the connecting hole and is screwed to the first nut.

7. The duct according to claim 5, wherein The connecting component (3) further includes a first connecting ring (32) and a second connecting ring (33). The first connecting ring (32) is coaxially disposed at the end of the circular tube, and the second connecting ring (33) is coaxially disposed at the end of the flexible connecting tube (31). The first connecting ring (32) is connected to the second connecting ring (33).

8. The duct according to claim 7, characterized in that The connecting component (3) further includes a locking member (34), the first connecting ring (32) is provided with a first hole, the second connecting ring (33) is provided with a second hole, and the locking member (34) passes through the first hole and the second hole.

9. The duct according to claim 7, characterized in that The first connecting ring (32) and the second connecting ring (33) are connected by welding.

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