Prefabricated square culvert for water conservancy construction

Abstract

This utility model relates to the field of precast culvert technology, and particularly to a precast culvert for hydraulic construction, comprising a precast culvert body, a protrusion fixedly connected to the right end of the precast culvert body, the precast culvert body and the protrusion being an integral structure, the four corners of the outer surface of the protrusion being arc-shaped, a slot being opened inside the precast culvert body, and a support device being fixedly connected to the inner wall of the precast culvert body. The precast culvert for hydraulic construction described in this utility model has a receiving cavity opened at the left end of the precast culvert body, and a rubber strip is fixedly connected to the inner wall of the receiving cavity. Because the rubber strip is made of rubber, when two precast culvert bodies are joined, the rubber strip acts as a buffer component while also improving the sealing performance, facilitating use.

Description

Technical Field

[0001] This utility model relates to the field of precast culvert technology, and in particular to a precast culvert for water conservancy construction. Background Technology

[0002] In water conservancy construction, precast culverts, as a highly efficient precast component, have advantages such as convenient construction, controllable quality, and strong adaptability. They are widely used in drainage, flood control, and river management projects. Precast culverts typically adopt standardized size designs and can be flexibly combined according to project needs to adapt to different terrains and drainage requirements. Precast culverts are manufactured in factories, requiring only hoisting and splicing on site, shortening the construction cycle by 40%-60% compared to traditional cast-in-place processes. However, existing precast culverts have at least the following drawbacks during use: 1. After two precast culverts are joined, there is a large gap between them, affecting the sealing performance after the joint; 2. Existing precast culverts are only reinforced by embedding steel bars inside, which has limited strength. After long-term use, precast culverts are prone to breakage. Therefore, a new type of precast culvert for water conservancy construction is proposed. Utility Model Content

[0003] The main objective of this invention is to provide a prefabricated culvert for water conservancy construction, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A precast culvert for water conservancy construction includes a precast culvert body, a protrusion fixedly connected to the right end of the precast culvert body, the precast culvert body and the protrusion are an integral structure, the four corners of the outer surface of the protrusion are all arc-shaped structures, a slot is opened in the body of the precast culvert body, and a support device is fixedly connected to the inner wall of the precast culvert body.

[0006] Preferably, the support device includes three reinforcing brackets, which are equidistantly distributed. The upper inner walls of the three reinforcing brackets are movably connected to a first connecting bracket, and the lower inner walls of the three reinforcing brackets are movably connected to a second connecting bracket. The upper end of the second connecting bracket and the lower end of the first connecting bracket are each movably connected to three bolts, and the six bolts are arranged in pairs.

[0007] Preferably, the three sets of bolts are threadedly connected to the three reinforcing brackets respectively.

[0008] Preferably, all three reinforcing supports are fixedly connected to the inner wall of the precast culvert body.

[0009] Preferably, a plurality of reinforcing ribs are fixedly connected inside the precast square culvert body, and the plurality of reinforcing ribs are all in a "return" shape structure.

[0010] Preferably, a mating slot is opened at the left end of the precast square culvert body, a receiving cavity is opened on the right slot wall of the mating slot, and a rubber strip is inserted and movably connected in the receiving cavity.

[0011] By adopting the above technical solution: the rubber strip is inserted into the receiving cavity and will not break away without manual operation.

[0012] Preferably, the rubber strip is in a "return" shape structure, and the mating slot is adapted to the convex portion.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, by arranging a support device inside the precast square culvert body, the support device is composed of three reinforcing brackets arranged in a row, and a first connecting bracket and a second connecting bracket are jointly connected between the three reinforcing brackets by bolts. The first connecting bracket and the second connecting bracket support the three reinforcing brackets, and the three reinforcing brackets support the inside of the precast square culvert body. The three reinforcing brackets are completely fitted with the inner wall of the precast square culvert body, so as to improve the strength of the precast square culvert body and increase the service life;

[0015] 2. In the utility model, by opening a receiving cavity at the left end of the precast square culvert body, and a rubber strip is fixedly connected to the inner wall of the receiving cavity. Since the rubber strip is made of rubber, when two precast square culvert bodies are butted, the rubber strip can be used as a buffer component and also improve the sealing performance, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of a precast square culvert for water conservancy construction of the utility model;

[0017] Figure 2 is a schematic diagram of the overall structure of the support device of a precast square culvert for water conservancy construction of the utility model;

[0018] Figure 3 is a schematic cross-sectional structure diagram of the precast square culvert body of a precast square culvert for water conservancy construction of the utility model;

[0019] Figure 4 is a left view of a precast square culvert for water conservancy construction of the utility model.

[0020] In the figure: 1. Precast square culvert body; 2. Support device; 3. Convex portion; 4. Slot mouth; 11. Reinforcing rib; 12. Rubber strip; 13. Mating slot; 14. Receiving cavity; 21. Reinforcing bracket; 22. First connecting bracket; 23. Bolt; 24. Second connecting bracket. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A precast culvert for water conservancy construction includes a precast culvert body 1, a protrusion 3 fixedly connected to the right end of the precast culvert body 1, the precast culvert body 1 and the protrusion 3 are an integral structure, the four corners of the outer surface of the protrusion 3 are all arc-shaped structures, a slot 4 is opened in the precast culvert body 1, and a support device 2 is fixedly connected to the inner wall of the precast culvert body 1.

[0026] In this embodiment, the support device 2 includes three reinforcing brackets 21 which are equidistantly distributed. The upper inner walls of the three reinforcing brackets 21 are jointly inserted and movably connected with a first connecting bracket 22, and the lower inner walls of the three reinforcing brackets 21 are jointly inserted and movably connected with a second connecting bracket 24. Both the upper end of the second connecting bracket 24 and the lower end of the first connecting bracket 22 are inserted and movably connected with three bolts 23, and two of the six bolts 23 form a group; the three groups of bolts 23 are respectively threadedly connected with the three reinforcing brackets 21; the three reinforcing brackets 21 are all fixedly connected with the inner wall of the precast square culvert body 1; a number of reinforcing ribs 11 are fixedly connected inside the precast square culvert body 1, and the number of reinforcing ribs 11 are all in a "return" shape structure; a mating slot 13 is opened at the left end of the precast square culvert body 1, and a receiving cavity 14 is opened on the right slot wall of the mating slot 13, and a rubber strip 12 is inserted and movably connected inside the receiving cavity 14; the rubber strip 12 is in a "return" shape structure, and the mating slot 13 is adapted to the convex part 3.

[0027] Through the above solution: The support device 2 is carefully constructed by three reinforcing brackets 21 arranged in a row. These three reinforcing brackets 21 not only have a strong structure but also a reasonable layout, and can evenly disperse the external pressure borne by the precast square culvert body 1. To ensure the coordinated work and overall stability between the three reinforcing brackets 21, the first connecting bracket 22 and the second connecting bracket 24 are specially designed and tightly connected to the three reinforcing brackets 21 by high-strength bolts 23. This connection method not only enhances the overall stiffness of the support device 2 but also enables the three reinforcing brackets 21 to form an organic whole, jointly providing all-round and dead-angle-free support to the inside of the precast square culvert body 1.

[0028] It should be noted that this utility model describes a precast culvert for hydraulic construction. By cleverly incorporating a support device 2 inside the precast culvert body 1, stable support and reinforcement of the precast culvert body are achieved. This support device 2 is meticulously constructed from three reinforcing supports 21 arranged in a straight line. These three reinforcing supports 21 are not only structurally robust but also rationally laid out, evenly distributing the external pressure borne by the precast culvert body 1. To ensure the coordinated work and overall stability among the three reinforcing supports 21, a first connecting support 22 and a second connecting support 24 are specially designed and tightly connected to the three reinforcing supports 21 using high-strength bolts 23. This connection method not only enhances the overall rigidity of the support device 2 but also allows the three reinforcing supports 21 to form an organic whole, jointly providing comprehensive and seamless support to the interior of the precast culvert body 1. The three reinforcing supports 21 are completely fitted to the inner wall of the precast culvert body 1. This fitted design not only effectively prevents deformation or displacement of the precast culvert body 1 under stress but also greatly improves its overall strength. With the reinforcement of the support device 2, the precast culvert body 1 can better withstand external loads, thus significantly extending its service life and reducing maintenance costs. Furthermore, a receiving cavity 14 is specially provided at the left end of the precast culvert body 1. This cavity 14 is ingeniously designed, facilitating docking with other precast culvert bodies and providing space for subsequent sealing. A rubber strip 12 is fixedly connected to the inner wall of the receiving cavity 14. The rubber strip 12 is made of high-quality rubber, possessing excellent elasticity and sealing performance. When two precast culvert bodies 1 dock, the rubber strip 12 acts as a buffer, effectively absorbing the impact force generated during docking and protecting the precast culvert body from damage. Simultaneously, the tight fit of the rubber strip 12 significantly improves the sealing performance at the docking point, preventing moisture, mud, and other impurities from seeping into the precast culvert and ensuring its long-term stable operation.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precast culvert for hydraulic construction, comprising a precast culvert body (1), characterized in that: The right end of the precast square culvert body (1) is fixedly connected with a convex part (3). The precast square culvert body (1) and the convex part (3) are of an integral structure. The four corners of the outer surface of the convex part (3) are all arc surface structures. A notch (4) is formed in the precast square culvert body (1), and a support device (2) is fixedly connected to the inner wall of the precast square culvert body (1). The support device (2) includes a reinforcement bracket (21). There are three reinforcement brackets (21). The three reinforcement brackets (21) are equidistantly distributed. A first connecting bracket (22) is jointly inserted and movably connected to the upper inner walls of the three reinforcement brackets (21). A second connecting bracket (24) is jointly inserted and movably connected to the lower inner walls of the three reinforcement brackets (21). Three bolts (23) are respectively inserted and movably connected to the upper end of the second connecting bracket (24) and the lower end of the first connecting bracket (22). The six bolts (23) are grouped in pairs of two.

2. A precast culvert for hydraulic construction according to claim 1, characterized in that: The three groups of bolts (23) are respectively threadedly connected to the three reinforcement brackets (21).

3. A precast culvert for hydraulic construction according to claim 1, characterized in that: The three reinforcement brackets (21) are all fixedly connected to the inner wall of the precast square culvert body (1).

4. A precast culvert for water conservancy construction according to claim 1, characterized in that: A number of reinforcing ribs (11) are fixedly connected in the precast square culvert body (1). The number of reinforcing ribs (11) are all in a "return" shape structure.

5. A precast culvert for hydraulic construction according to claim 1, characterized in that: A mating slot (13) is formed at the left end of the precast square culvert body (1). A receiving cavity (14) is formed in the right slot wall of the mating slot (13). A rubber strip (12) is inserted and movably connected in the receiving cavity (14).

6. A precast culvert for hydraulic construction according to claim 5, characterized in that: The rubber strip (12) is in a "return" shape structure. The mating slot (13) is adapted to the convex part (3).

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