Drainage box culvert

Abstract

The invention relates to a drainage box culvert, and relates to the field of drainage box culverts, the drainage box culvert comprises a box culvert body, the box culvert body is of a hollow box body structure with two open ends, the box culvert body is provided with a water flowing cavity for water flow to pass through, one end of one opening of the box culvert body is provided with a convex part, and one end of the other opening of the box culvert body is provided with a concave part; when every two adjacent box culvert bodies are connected, the convex portion of one box culvert body is inserted into the concave portion of the other box culvert body, an expansion joint is arranged between every two adjacent box culvert bodies, and a blocking assembly used for blocking the expansion joint is arranged between every two adjacent box culvert bodies. The drainage box culvert has the advantages that the drainage box culvert can adapt to tiny deformation caused by environmental factors such as foundation settlement, meanwhile, the overall sealing performance and stability of connection between the box culvert bodies are effectively improved, the durability of the drainage box culvert bodies is improved, and the service life of the drainage box culvert bodies is prolonged.

Description

Technical Field

[0001] The present application relates to the field of drainage box culverts, and in particular to a drainage box culvert. Background Art

[0002] A box culvert refers to a culvert whose tunnel body is constructed with reinforced concrete box-shaped pipe sections. Box culverts work well under static conditions and can cope with uneven settlement of the foundation, so they are often used as drainage structures in road projects.

[0003] Box culverts are typically cast-in-place. A base layer is set in the excavated trench, followed by a concrete cushion. Pre-fabricated rebar is then tied on-site, and the inner and outer formwork are supported. For larger box culverts, the base plate and lower half of the side walls are typically cast first. Rebar for the upper side walls and roof is then tied, and the inner and outer formwork are supported before the upper side walls and roof are cast. Once the concrete reaches the required design strength, the formwork is removed, and soil is backfilled simultaneously on both sides of the box culvert.

[0004] Box culverts are commonly used in engineering projects such as large-capacity underground drainage channels, road culverts in poor geological conditions, and urban underpasses. With the accelerating pace of urbanization, many existing drainage box culverts need to be extended, and many roads need to be widened and their underpasses lengthened. However, the treatment of the junction between existing and newly constructed box culverts is a key technology, but currently, most construction projects suffer from overly simplistic and inadequate treatment, resulting in severe leakage after completion. Summary of the Invention

[0005] In order to solve the above problems, the present application provides a drainage box culvert.

[0006] The drainage box culvert provided in this application adopts the following technical solution:

[0007] A drainage box culvert includes a box culvert body, which is configured as a hollow box structure with openings at both ends. The box culvert body has a water flow cavity for water to flow through. One of the open ends of the box culvert body is provided with a convex portion, and the other open end of the box culvert body is provided with a concave portion. When two adjacent box culvert bodies are connected, the convex portion of one box culvert body is inserted into the concave portion of the other box culvert body. An expansion joint is provided between the two adjacent box culvert bodies, and a sealing component for sealing the expansion joint is provided between the two adjacent box culvert bodies.

[0008] Furthermore, a first groove is formed on the convex portion of one of the box culvert bodies, and a second groove is formed on the other box culvert body. The first groove and the second groove are spliced ​​together to form an accommodating space for accommodating the blocking assembly.

[0009] Furthermore, the sealing assembly includes a baffle and two elastic strips, a supporting member for supporting the baffle is provided at the bottom of the baffle, the top wall of the baffle is flush with the notch of the accommodating groove, one of the elastic strips is fixedly connected to one side of the baffle and one of the culvert bodies, the other elastic strip is fixedly connected to the other side of the baffle and the other culvert body, and the two elastic strips are symmetrically arranged along the baffle.

[0010] Furthermore, caulking glue is provided between the elastic rubber strip and the box culvert body, and between the elastic rubber strip and the baffle.

[0011] The top end of the support column is fixedly mounted on the support column, and the bottom end of the support column is fixedly mounted on the support column, and the bottom end of the support column is fixedly mounted on the support column.

[0012] Furthermore, the connecting member is configured as a chain plate, one end of the chain plate is fixedly connected to the end of the lower probe plate, and the other end of the chain plate is fixedly connected to the end of the mounting plate.

[0013] Furthermore, the two mounting plates are fixedly connected to the box culvert body via a plurality of expansion screws.

[0014] Furthermore, a support for supporting a convex portion of another box culvert body is provided at the open end of the concave portion away from the box culvert body.

[0015] Furthermore, a shock-absorbing pad is provided at the end of the support close to the convex portion of the other box culvert body.

[0016] Furthermore, a plurality of drainage openings are provided at the bottom of the recess, and the plurality of drainage openings are all inclinedly arranged.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. The box culvert body is designed with a hollow box structure with openings at both ends, and a convex part is set at one end and a concave part is set at the other end, which enables convenient pre-connection between the box culvert bodies. This not only simplifies the installation process and improves construction efficiency, but also effectively prevents water leakage between adjacent box culvert bodies.

[0019] 2. The expansion joints and plugging components set between adjacent box culvert bodies can adapt to minor deformations caused by environmental factors such as foundation settlement, while effectively improving the overall sealing and stability of the connection between the box culvert bodies, which is conducive to enhancing the durability and service life of the drainage box culvert body;

[0020] 3. The sealing assembly adopts a baffle and elastic strip structure, combined with the use of caulking glue, to further improve the sealing effect of the expansion joint. The design of the baffle support components, such as the probe plate, support plate, support column, pressure plate, spring and nut, ensures that the baffle can remain stable when subjected to force and is not easy to loosen or fall off, thereby enhancing the reliability and stability of the sealing assembly.

[0021] 4. The mounting plate is fixedly connected to the box culvert body by expansion screws. This connection method is not only simple and fast, but also firm and reliable, effectively reducing the displacement or falling off of the mounting plate during operation;

[0022] 5. The pillars and shock-absorbing pads installed in the concave part not only provide support for the convex part of the adjacent box culvert body, but also reduce the vibration caused by factors such as water impact or foundation settlement, further improving the stability and safety of the box culvert body;

[0023] 6. The drain outlet arranged obliquely at the bottom of the recess helps to drain the accumulated water in the box culvert body in time, preventing the accumulated water from causing unnecessary pressure or damage to the box culvert body and the blocking components, thereby ensuring the normal operation and service life of the drainage box culvert body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a drainage box culvert in an embodiment of the present application.

[0025] Figure 2 for Figure 1 Section view along plane AA.

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0027] Explanation of the accompanying reference numerals: 1. Box culvert body; 2. Water flow chamber; 3. Protrusion; 4. Recess; 5. Expansion joint; 6. Sealing assembly; 61. Baffle; 62. Elastic rubber strip; 7. Support member; 71. Down-probe plate; 72. Support plate; 73. Support column; 74. Pressure plate; 75. Spring; 76. Nut; 8. Connector; 81. Chain plate; 9. Pillar; 10. Shock-absorbing pad; 11. First groove; 12. Second groove; 13. Accommodating space; 14. Caulking glue; 15. Mounting plate; 16. Expansion screw; 17. Drain outlet. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] The embodiment of the present application discloses a drainage box culvert.

[0030] Reference Figure 1 、 Figure 2 and Figure 3 A drainage box culvert includes a box culvert body 1, which is configured as a hollow box structure with openings at both ends. The box culvert body 1 has a water flow cavity 2 for water to flow through. A convex portion 3 is provided at one open end of the box culvert body 1, and a concave portion 4 is provided at the other open end of the box culvert body 1. When two adjacent box culvert bodies 1 are connected, the convex portion 3 of one box culvert body 1 is inserted into the concave portion 4 of the other box culvert body 1. An expansion joint 5 is provided between the two adjacent box culvert bodies 1. A sealing assembly 6 for sealing the expansion joint 5 is provided between the two adjacent box culvert bodies 1. A support 9 for supporting the convex portion 3 of the other box culvert body 1 is provided at the end of the concave portion 4 facing away from the open end of the box culvert body 1, and a shock-absorbing pad 10 is provided at the end of the support 9 close to the convex portion 3 of the other box culvert body 1.

[0031] The box culvert body 1 is designed with a hollow box structure with openings at both ends, and a convex part 3 is provided at one end and a concave part 4 is provided at the other end, thereby realizing convenient pre-connection between the box culvert bodies 1, which not only simplifies the installation process and improves the construction efficiency, but also effectively prevents water leakage between adjacent box culvert bodies 1. The pillars 9 and shock-absorbing pads 10 provided in the concave part 4 not only provide support for the convex parts 3 of the adjacent box culvert bodies 1, but also reduce the vibration caused by factors such as water impact or foundation settlement, thereby further improving the stability and safety of the box culvert body 1; the pillars 9 and shock-absorbing pads 10 provided in the concave part 4 not only provide support for the convex parts 3 of the adjacent box culvert bodies 1, but also reduce the vibration caused by factors such as water impact or foundation settlement, thereby further improving the stability and safety of the box culvert body 1.

[0032] Reference Figure 2 and Figure 3A first groove 11 is provided on the convex portion 3 of one box culvert body 1 , and a second groove 12 is provided on the other box culvert body 1 . The first groove 11 and the second groove 12 are spliced ​​together to form an accommodating space 13 for accommodating the blocking assembly 6 .

[0033] Reference Figure 3 The blocking assembly 6 includes a baffle 61 and two elastic strips 62. In this embodiment, the elastic strip 62 is set as an accordion rubber strip. The extension direction of the elastic strip 62 is parallel to the extension direction of the box culvert body 1. A supporting member 7 for supporting the baffle 61 is provided at the bottom of the baffle 61. The top wall of the baffle 61 is flush with the notch of the accommodating groove. One of the elastic strips 62 is connected to one side of the baffle 61 and one of the box culvert bodies 1, and the other elastic strip 62 is connected to the other side of the baffle 61 and the other box culvert body 1. The two elastic strips 62 are symmetrically arranged along the baffle 61. The elastic strip 62 and the box culvert body 1, as well as the elastic strip 62 and the baffle 61 are fixedly connected with caulking glue 14.

[0034] The expansion joints 5 and sealing components 6 arranged between adjacent box culvert bodies 1 can adapt to slight deformations caused by environmental factors such as foundation settlement, while effectively improving the overall sealing and stability of the connection between the box culvert bodies 1, which is conducive to enhancing the durability and service life of the drainage box culvert body 1.

[0035] Reference Figure 3 The supporting member 7 includes a lower probe plate 71, a supporting plate 72, a supporting column 73, a pressure plate 74, a spring 75 and a nut 76. The lower probe plate 71 is horizontally arranged in the expansion joint 5. Connecting members 8 are provided at both ends of the lower probe plate 71. The two connecting members 8 are both inclined. In this embodiment, the lower probe plate 71 is configured as an elastic metal sheet, and the connecting member 8 is configured as a chain plate 81. In this embodiment, the chain plate 81 can be configured as a metal material or a plastic material. One end of the chain plate 81 is fixedly connected to the end of the lower probe plate 71, and the other end of the chain plate 81 is fixedly connected to the end of the mounting plate 15 close to the lower probe plate 71.

[0036] The end of the connecting member 8 facing away from the lower probe plate 71 is provided with a mounting plate 15, the bottom wall of one mounting plate 15 abuts against the bottom of the first groove 11, and the bottom wall of the other mounting plate 15 abuts against the bottom of the second groove 12. In this embodiment, one mounting plate 15 is fixedly connected to the convex portion 3 of one box culvert body 1 by a plurality of expansion screws 16, and the other mounting plate 15 is fixedly connected to the concave portion 4 of the other box culvert body 1 by a plurality of expansion screws 16. One end of the support column 73 passes through the lower probe plate 71 and is fixedly connected to the bottom wall of the support plate 72, pressing The piece 74 is slidably sleeved on the support column 73, and the pressure piece 74 is arranged on the side of the lower probe plate 71 away from the supporting plate 72. The spring 75 is sleeved on the support column 73, and the spring 75 is arranged between the lower probe plate 71 and the pressure piece 74. One end of the spring 75 is fixedly connected to the side wall of the lower probe plate 71 close to the pressure piece 74, and the other end of the spring 75 is fixedly connected to the side wall of the pressure piece 74 facing the lower probe plate 71. The end of the support column 73 away from the pressure piece 74 is provided with a thread, and a nut 76 is threadedly connected to the thread. The nut 76 is close to the side wall of the lower probe plate 71 and abuts against the pressure piece 74.

[0037] When installing the baffle 61, first pass the support column 73 through the lower probe plate 71 and successively put the spring 75 and the pressure plate 74 on the end of the support column 73 facing away from the supporting plate 72, then thread the nut 76 onto the support column, adjust the position of the nut 76, and then adjust the distance between the pressure plate 74 and the lower probe plate 71, and then place the mounting plate 15 in the first groove 11 and the second groove 12 respectively. By adjusting the position between the two mounting plates 15, the chain plate 81 drives the lower probe plate 71 to move in the vertical direction. Part of the chain plate 81 can be overlapped in the first groove 11 or the second groove 12, and the mounting plate 15 is fixed with the expansion screw 16. Finally, the baffle 61 is placed on the supporting plate 72, and the elastic strip 62 is connected to the two sides of the baffle 61 with caulking glue 14 to complete the installation.

[0038] The mounting plate 15 is fixedly connected to the box culvert body 1 by expansion screws 16. This connection method is not only simple and fast, but also firm and reliable, and effectively reduces the displacement or falling off of the mounting plate 15 during operation.

[0039] Reference Figure 3 A plurality of drainage openings 17 are provided at the bottom of the recess 4, and the plurality of drainage openings 17 are all inclinedly provided.

[0040] The drain outlet 17 arranged obliquely at the bottom of the recess 4 helps to drain the accumulated water in the culvert body 1 in time, preventing the accumulated water from causing unnecessary pressure or damage to the culvert body 1 and the blocking assembly 6, thereby ensuring the normal operation and service life of the drainage culvert body 1.

[0041] The implementation principle of a drainage box culvert in an embodiment of the present application is: the expansion joint 5 and the sealing assembly 6 arranged between adjacent box culvert bodies 1 can adapt to the slight deformation caused by environmental factors such as foundation settlement, while effectively improving the overall sealing and stability of the connection between the box culvert bodies 1, which is conducive to enhancing the durability and service life of the drainage box culvert body 1.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A drainage box culvert, characterized by: The invention comprises a box culvert body (1), wherein the box culvert body (1) is configured as a hollow box structure with openings at both ends, the box culvert body (1) has a water flow cavity (2) for water to flow through, one of the open ends of the box culvert body (1) is provided with a convex portion (3), and the other open end of the box culvert body (1) is provided with a concave portion (4), when two adjacent box culvert bodies (1) are connected, the convex portion (3) of one box culvert body (1) is inserted into the concave portion (4) of the other box culvert body (1), an expansion joint (5) is provided between the two adjacent box culvert bodies (1), and a blocking component (6) for blocking the expansion joint (5) is provided between the two adjacent box culvert bodies (1).

2. A drainage box culvert according to claim 1, characterized in that: A first groove (11) is provided on the convex portion (3) of one of the box culvert bodies (1), and a second groove (12) is provided on the other box culvert body (1). The first groove (11) and the second groove (12) are spliced ​​together to form an accommodating space (13) for accommodating the blocking assembly (6).

3. A drainage box culvert according to claim 2, characterized in that: The blocking assembly (6) comprises a baffle (61) and two elastic rubber strips (62); a supporting member (7) for supporting the baffle (61) is provided at the bottom of the baffle (61); the top wall of the baffle (61) is flush with the notch of the receiving groove; one of the elastic rubber strips (62) is fixedly connected to one side of the baffle (61) and one of the culvert bodies (1); the other elastic rubber strip (62) is fixedly connected to the other side of the baffle (61) and the other culvert body (1); and the two elastic rubber strips (62) are symmetrically arranged along the baffle (61).

4. A drainage box culvert according to claim 3, characterized in that: Sealing glue (14) is provided between the elastic rubber strip (62) and the culvert body (1), and between the elastic rubber strip (62) and the baffle (61).

5. The drainage box culvert according to claim 3, characterized in that: The supporting member (7) includes a lower probe plate (71), a supporting plate (72), a supporting column (73), a pressure plate (74), a spring (75) and a nut (76). The lower probe plate (71) is horizontally arranged in the expansion joint (5). Connecting members (8) are provided at both ends of the lower probe plate (71). An installation plate (15) is provided at one end of the connecting member (8) away from the lower probe plate (71). The bottom wall of the installation plate (15) abuts against the bottom of the accommodating groove. One end of the supporting column (73) passes through the lower probe plate (71) and is fixedly connected to the bottom wall of the supporting plate (72). The pressure plate (74) is slidably sleeved on the supporting column (73). The pressure plate (74) is provided on the The lower probe plate (71) is away from the side of the supporting plate (72), and the spring (75) is sleeved on the support column (73). The spring (75) is arranged between the lower probe plate (71) and the pressure plate (74). One end of the spring (75) is fixedly connected to the side wall of the lower probe plate (71) close to the pressure plate (74), and the other end of the spring (75) is fixedly connected to the pressure plate (74) toward the side wall of the lower probe plate (71). The end of the support column (73) away from the pressure plate (74) is provided with a thread, and the nut (76) is threadedly connected to the thread. The nut (76) is close to the side wall of the lower probe plate (71) and abuts against the pressure plate (74).

6. The drainage box culvert according to claim 5, characterized in that: The connecting member (8) is configured as a chain plate (81), one end of the chain plate (81) is fixedly connected to the end of the lower probe plate (71), and the other end of the chain plate (81) is fixedly connected to the end of the mounting plate (15).

7. The drainage box culvert according to claim 5, characterized in that: The two mounting plates (15) are fixedly connected to the culvert body (1) via a plurality of expansion screws (16).

8. The drainage box culvert according to claim 1, characterized in that: The opening end of the recessed portion (4) facing away from the box culvert body (1) is provided with a support (9) for supporting the convex portion (3) of another box culvert body (1).

9. The drainage box culvert according to claim 8, characterized in that: A shock-absorbing pad (10) is provided at the end of the support (9) close to the convex portion (3) of the other culvert body (1).

10. The drainage box culvert according to claim 1, characterized in that: The bottom of the recess (4) is provided with a plurality of drainage openings (17), and the plurality of drainage openings (17) are all arranged at an angle.

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