A culvert structure and assembled small and medium-sized bridge

Abstract

The utility model relates to the technical field of culverts, and provides a culvert structure, including a plurality of culvert sections, wherein the ends of adjacent culvert sections are connected by at least two positioning structures, the positioning structure including a positioning hole, a positioning rod, a limiting hole and a limiting rod, the positioning hole is arranged at the end face of each culvert section, the limiting hole is arranged at the side of the culvert section and intersects with the positioning hole, the positioning rod is arranged in the positioning holes corresponding to two positions of adjacent culvert sections, positioning heads are arranged at both ends of the positioning rod, the diameter of the positioning head is equal to the diameter of the positioning hole, the limiting rod is embedded in the limiting hole, and the side of the limiting rod abuts against the root of the positioning head to limit the axial displacement of the positioning rod. In the utility model, adjacent culvert sections are connected by the positioning structure, and when spliced, adjacent culvert sections are positioned by the positioning of the two ends of the positioning rod (i.e., avoiding misalignment), and the limiting rod is embedded in the limiting hole and abuts against the root of the positioning head to limit the axial displacement of the positioning rod, thereby avoiding the adjacent culvert sections from being disconnected, and improving the connection reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of culverts, and in particular to a culvert structure and an assembled small and medium-sized bridge. Background Art

[0002] Culverts are usually used as water passages to allow water to flow under the road surface. Small and medium-sized bridges are sometimes also called bridge culverts, which are designed in the form of culverts. The bridge culverts include bridge piers and the culvert structure (also known as the main bridge structure) and end wall structure located on the top of the piers.

[0003] At present, in order to improve construction efficiency and shorten construction period, culverts are increasingly being prefabricated and assembled. For example, a patent document with publication number "CN219753039U" discloses an assembled culvert, which is assembled by splicing two or more prefabricated culvert sections and providing a sealing structure at the splicing point. In addition to saving construction period, the sealing between the culvert sections is also improved. However, the structure still has some defects, such as poor connection reliability between two adjacent side wall sections, which is prone to loosening and disconnection. Utility Model Content

[0004] The purpose of the utility model is to provide a culvert structure and an assembled small and medium-sized bridge to solve the above-mentioned defects of the prior art.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A culvert structure comprises a plurality of culvert sections, the ends of adjacent culvert sections are connected by at least two positioning structures, the positioning structures comprise positioning holes, positioning rods, limiting holes and limiting rods, the positioning holes are arranged on the end faces of each culvert section, the limiting holes are arranged on the sides of the culvert section and intersect with the positioning holes, the positioning rods are arranged in the positioning holes corresponding to two positions of adjacent culvert sections, positioning heads are arranged at both ends of the positioning rods, the diameter of the positioning heads is equal to the diameter of the positioning holes, the limiting rods are embedded in the limiting holes, and the side faces of the limiting rods abut against the roots of the positioning heads to limit the axial displacement of the positioning rods.

[0007] Optionally, the limiting rod is provided with concrete injection holes running through both ends, for injecting concrete into the positioning hole.

[0008] Optionally, the limiting rod is provided with a socket for clamping the positioning rod.

[0009] Optionally, both ends of the culvert are provided with sealing ring grooves, and a first sealing cavity is formed between the sealing ring grooves at adjacent ends of adjacent culverts, and a first sealing component is provided in the first sealing cavity.

[0010] Optionally, the first sealing component is a water-stopping pad or a waterproof rubber compound.

[0011] Optionally, the culvert comprises a base, a top cover and two side panels, and the side panels and the base, as well as the side panels and the top cover are connected via the positioning structure.

[0012] Optionally, the top and bottom of the side panel, the bottom of the top cover, and the top of the base are provided with sealing transverse grooves, and the sealing ring grooves between the side panel and the top cover, and the sealing ring grooves between the side panel and the base constitute a second sealing cavity, and a second sealing component is provided in the second sealing cavity.

[0013] Optionally, the second sealing component is a water-stopping pad or a waterproof rubber compound.

[0014] The utility model also provides an assembled small and medium-sized bridge, comprising a bridge pier, an end wall structure and a culvert structure described in any one of the above items.

[0015] The technical solution of the present utility model has at least the following advantages and beneficial effects: in the present utility model, adjacent culvert sections are connected by a positioning structure. When spliced, adjacent culvert sections are positioned by the positioning at both ends of the positioning rod (i.e., avoiding misalignment). After the limiting rod is embedded in the limiting hole, it abuts against the root of the positioning head to limit the axial displacement of the positioning rod, thereby avoiding disconnection of adjacent culvert sections and improving the connection reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the structural diagram of the culvert;

[0018] Figure 2 It is a schematic diagram of the culvert structure;

[0019] Figure 3 This is the main view of the culvert structure;

[0020] Figure 4 for Figure 3 An enlarged view of the AA partial cross-sectional view;

[0021] Figure 5 It is a structural schematic diagram of the limit rod;

[0022] Icon: 100-culvert, 101-base, 102-top cover, 103-side panel, 104-sealing ring groove, 105-sealing transverse groove, 200-positioning structure, 201-positioning hole, 202-positioning rod, 2021-positioning head, 203-limiting hole, 204-limiting rod, 2041-bayonet. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that if the terms "upper", "lower", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Embodiment 1

[0027] refer to Figure 1-2 A culvert structure includes a plurality of culvert sections 100. Further, the culvert section 100 of this embodiment is assembled from a base 101, a top cover 102 and two side panels 103, which is convenient for prefabricating each part separately, further shortening the construction period.

[0028] refer to Figure 3-5In this embodiment, adjacent culvert sections 100 and various parts of a single culvert section 100 are connected by positioning structures 200. Taking the connection between adjacent culvert sections 100 as an example, the ends of adjacent culvert sections 100 are connected by at least two positioning structures 200. The positioning structure 200 includes a positioning hole 201, a positioning rod 202, a limiting hole 203 and a limiting rod 204. The positioning hole 201 is provided on the end face of each culvert section 100. Preferably, the positioning hole 201 is provided on the side plate 103, and a positioning hole 201 is provided at each end of each side plate 103. The side surface of each side plate 103 is provided with a limiting hole 203 at each positioning hole 201, and the limiting hole 203 intersects with the positioning hole 201.

[0029] The positioning rod 202 is arranged in the positioning holes 201 corresponding to the two positions of the adjacent culvert sections 100. Positioning heads 2021 are provided at both ends of the positioning rod 202. The diameter of the positioning head 2021 is equal to the diameter of the positioning hole 201, which is convenient for realizing the accurate positioning of the adjacent culvert sections 100 and avoiding the misalignment of the adjacent culvert sections 100. The limiting rod 204 is embedded in the limiting hole 203. It should be understood that the limiting hole 203 is interference fit with the limiting hole 203 to avoid falling off. During installation, the limiting hole 203 is embedded in the limiting hole 203 by knocking or the like. The side of the limiting rod 204 abuts against the root of the positioning head 2021 (it is easy to understand that the root refers to the connection between the positioning head 2021 and the positioning rod 202) to limit the axial displacement of the positioning rod 202, thereby avoiding the adjacent culvert sections 100 from moving away from each other, that is, avoiding the adjacent culvert sections 100 from being disconnected, thereby improving the connection reliability.

[0030] Similarly, in this embodiment, the side plate 103 and the base 101, as well as the side plate 103 and the top cover 102 are connected in the above manner, which will not be described again.

[0031] On the basis of the above, the limiting rod 204 is provided with a concrete injection hole running through both ends, which is used to inject concrete into the positioning hole 201. With such a configuration, after the concrete solidifies, the positioning rod 202 and the limiting rod 204 are integrated to prevent the limiting rod 204 from falling off. It should be understood that the depth of the limiting hole 203 can be greater than the length of the limiting rod 204 to prevent the concrete from being unable to enter the positioning hole 201. Furthermore, the limiting rod 204 is provided with a bayonet 2041 that clamps the positioning rod 202, so as to facilitate the filling of concrete into the positioning hole 201.

[0032] Both ends of the culvert 100 are provided with sealing ring grooves 104. It is easy to understand that since a single culvert 100 in this embodiment is assembled from a base 101, a top cover 102 and two side plates 103, the sealing ring grooves 104 are composed of strip grooves on the base 101, the top cover 102 and the two side plates 103. The sealing ring grooves 104 at adjacent ends of adjacent culverts 100 form a first sealing cavity, and a first sealing component (not shown) is provided in the first sealing cavity.

[0033] The top and bottom of the side plate 103, the bottom of the top cover 102, and the top of the base 101 are all provided with sealing transverse grooves 105. The sealing ring grooves 104 between the side plate 103 and the top cover 102, and the sealing ring grooves 104 between the side plate 103 and the base 101 all constitute a second sealing cavity, and a second sealing component (not shown) is provided in the second sealing cavity.

[0034] It is worth noting that the provision of the first sealing component ensures the sealing of the joints of adjacent culvert sections 100; the provision of the second sealing component ensures the sealing of the joints of a single culvert section 100, thereby ensuring the sealing of each joint of the culvert structure.

[0035] In this embodiment, the first sealing component and the second sealing component are water-stopping pads. It is easy to understand that the water-stopping pad in the sealing ring groove 104 may include four small sections, which together form a ring shape, and the water-stopping pad is broken into two sections at the positioning rod 202, and a hole is provided at the break for the positioning rod 202 to pass through. In other embodiments, the first sealing component and the second sealing component may also be waterproof glue. It is easy to understand that in this case, the culvert section 100 should be provided with a glue injection hole for injecting waterproof slurry.

[0036] In addition, it is easy to understand that, with respect to the entire culvert structure, the end faces of the culvert sections 100 at both ends should be planar, that is, there is no need to provide sealing ring grooves 104 and positioning holes 201 .

[0037] Embodiment 2

[0038] This embodiment provides an assembled small and medium-sized bridge, including piers, end wall structures and the culvert structure provided in the first embodiment.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A culvert structure, comprising a plurality of culvert sections, characterized in that: The ends of adjacent culvert sections are connected by at least two positioning structures, and the positioning structures include positioning holes, positioning rods, limiting holes and limiting rods. The positioning holes are arranged on the end faces of each culvert section, and the limiting holes are arranged on the sides of the culvert section and intersect with the positioning holes. The positioning rods are arranged in positioning holes corresponding to two positions of adjacent culvert sections. Positioning heads are arranged at both ends of the positioning rods, and the diameter of the positioning heads is equal to the diameter of the positioning holes. The limiting rods are embedded in the limiting holes, and the side faces of the limiting rods abut against the root of the positioning heads to limit the axial displacement of the positioning rods.

2. The culvert structure according to claim 1, characterized in that: The limiting rod is provided with concrete injection holes penetrating through both ends, which are used for injecting concrete into the positioning hole.

3. The culvert structure according to claim 2, characterized in that: The limiting rod is provided with a bayonet for clamping the positioning rod.

4. The culvert structure according to claim 1, characterized in that: Both ends of the culvert are provided with sealing ring grooves, and a first sealing cavity is formed between the sealing ring grooves at adjacent ends of adjacent culverts, and a first sealing component is provided in the first sealing cavity.

5. The culvert structure according to claim 4, characterized in that: The first sealing component is a water-stopping pad or a waterproof rubber material.

6. The culvert structure according to any one of claims 1 to 5, characterized in that: The culvert comprises a base, a top cover and two side panels, and the side panels and the base, as well as the side panels and the top cover are connected via the positioning structure.

7. The culvert structure according to claim 6, characterized in that: The top and bottom of the side plate, the bottom of the top cover, and the top of the base are all provided with sealing transverse grooves, and the sealing ring grooves between the side plate and the top cover, and the sealing ring grooves between the side plate and the base all constitute a second sealing cavity, and a second sealing component is provided in the second sealing cavity.

8. The culvert structure according to claim 7, characterized in that: The second sealing component is a water-stopping pad or a waterproof rubber compound.

9. A prefabricated small and medium-sized bridge, characterized in that: It comprises a bridge pier, an end wall structure and a culvert structure as described in any one of claims 1-8.

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