Elbow joint imitating assembly type ditch

By using a flared and constricted connection structure designed to mimic an elbow joint, combined with a profiled steel plate and rubber plate, the problem of loose connections in traditional prefabricated trenches is solved, achieving efficient sealing and stable connection, and reducing on-site construction requirements.

CN223893495UActive Publication Date: 2026-02-10HAINAN WATER RESOURCES & HYDRO POWER CONSTR SURVEYING & MAPPING DESIGN INST
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Patent Information

Application Number
CN202520309687.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-02-10
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Traditional prefabricated ditches lack effective connection structures for pairwise connections, resulting in gaps that need to be filled and increasing on-site construction manpower.

Method used

The flared and constricted end connection structure, designed to mimic an elbow joint, combined with a profiled steel plate and a profiled rubber plate, achieves a tight connection between the main components, reducing gaps and improving sealing.

Benefits of technology

It improves the overall continuity and sealing of prefabricated ditches, reduces the amount of on-site construction work, and enhances the stability and durability of connections.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an elbow joint imitating assembly type ditch which comprises a main body, a connecting piece is arranged at the tail end of the main body, the connecting piece comprises a flaring end, the flaring end is arranged at one end of the main body, and the inner wall of the flaring end is in an S shape. The necking end is arranged at the end, away from the flaring end, of the body and matched with the inner wall of the flaring end. Wherein through the cooperation of the flaring end and the necking end, a plurality of elbow joint imitating assembly type ditches are assembled. The utility model relates to the technical field of prefabricated ditches, in particular to an elbow-joint-imitating assembly type ditch, which realizes effective connection between two main bodies by arranging an elbow-joint-imitating flaring end and an elbow-joint-imitating necking end at the two ends of the main bodies, reduces the retention of gaps, is beneficial to the sealing effect of the ditch after assembly, improves the overall continuity of the ditch, and improves the production efficiency. Dislocation and the like are reduced, and the workload of on-site constructors is greatly reduced.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated ditch technology, specifically to an elbow joint-inspired assembled ditch. Background Technology

[0002] Prefabricated ditches are a type of ditch construction that uses prefabricated components for rapid assembly. The components of prefabricated ditches are usually prefabricated in factories, including base plates, connecting frames, side plates, and cover plates, and are made of different materials such as high-strength concrete. They can be quickly assembled on the construction site. Compared with traditional on-site manual masonry or reinforced concrete pouring methods, prefabricated ditches have advantages such as convenient construction, short construction period, relatively low cost, and less impact on environmental pollution.

[0003] However, traditional prefabricated ditches do not have an effective connection structure when connecting two sections, so the gaps need to be filled to ensure a sealing effect, and a certain amount of manpower is still required for construction on site. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an elbow-joint-style prefabricated ditch, which solves the problem that traditional prefabricated ditches do not have an effective connection structure when connecting two sections, so the gaps need to be filled to ensure a sealing effect, and a certain amount of manpower is still required for on-site construction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a simulated elbow joint assembled trench, comprising a main body, with a connector at the end of the main body, the connector comprising a flared end located at one end of the main body and having an S-shaped inner wall; and a constricted end located at the end of the main body away from the flared end and matching the inner wall of the flared end; wherein, multiple simulated elbow joint assembled trenches are assembled by the cooperation of the flared end and the constricted end.

[0006] Preferably, a profiled steel plate is fixedly connected to the inner wall of the flared end, and a profiled rubber plate is fixedly connected to the inner wall of the constricted end.

[0007] Preferably, both the profiled steel plate and the profiled rubber plate are provided with positioning rods on the side near the main body, and the positioning rods are embedded inside the main body.

[0008] Preferably, a flow-guiding concrete layer is provided at the bottom of the inner wall of the main body, and pre-embedded steel bars are embedded on both sides of the inner wall of the flow-guiding concrete layer. The ends of the pre-embedded steel bars are embedded inside the main body, and temperature steel bars are embedded inside the flow-guiding concrete layer.

[0009] Preferably, a cover plate is hinged to the top of the main body.

[0010] Preferably, a padding layer is provided at the bottom of the main body.

[0011] Preferably, the inner wall of the main body is provided with reserved through holes on both sides. Beneficial effects

[0012] This utility model provides a simulated elbow joint assembled ditch. It has the following advantages: This simulated elbow joint assembled ditch, by setting flared and constricted ends resembling an elbow joint at both ends of the main body, achieves an effective connection between the two main bodies, reduces gaps, improves the sealing effect of the ditch after assembly, enhances the overall continuity of the ditch, reduces misalignment, and significantly reduces the workload of on-site construction personnel.

[0013] By combining the diversion concrete layer, reserved through holes, and the molded steel plate and molded rubber plate, the slope setting improves fluid flow and facilitates water diversion. It also allows for the installation of wiring such as cables and optical fibers inside the main body, while ensuring the sealing between two adjacent main bodies to prevent water from seeping into the ground. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Side view;

[0016] Figure 3 for Figure 1 Top view;

[0017] Figure 4 for Figure 3 A magnified view of region A in the middle.

[0018] In the diagram: 1. Main body; 2. Reserved through hole; 3. Connector; 31. Flared end; 311. Imitation steel plate; 32. Narrow end; 321. Imitation rubber plate; 4. Positioning rod; 5. Cover plate; 6. Guide concrete layer; 61. Embedded steel bar; 62. Temperature steel bar; 7. Subbase. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0021] Traditional prefabricated trenches do not have an effective connection structure when connecting two sections, so the gaps need to be filled to ensure a sealing effect, and a certain amount of manpower is still required for on-site construction.

[0022] In view of this, the present invention provides a simulated elbow joint assembled ditch. By setting flared and constricted ends of simulated elbow joints at both ends of the main body, an effective connection between the two main bodies is achieved, reducing the presence of gaps and improving the sealing effect of the ditch after assembly. At the same time, it improves the overall continuity of the ditch, reduces the occurrence of misalignment, and greatly reduces the workload of on-site construction personnel.

[0023] Depend on Figure 1-4 As can be seen, the elbow joint-like assembled trench in this case includes a main body 1, and a connector 3 is provided at the end of the main body 1. The connector 3 includes a flared end 31 and a constricted end 32. The flared end 31 is located at one end of the main body 1 and its inner wall is S-shaped. The constricted end 32 is located at the end of the main body 1 away from the flared end 31 and matches the inner wall of the flared end 31. In this case, multiple elbow joint-like assembled trenches are assembled by the cooperation of the flared end 31 and the constricted end 32.

[0024] In the specific implementation process, it is worth noting that the main body 1, as the core part of the entire prefabricated ditch, constitutes the main channel for water transport. Its shape is designed as a long, tubular U-shaped structure, possessing sufficient strength and rigidity to withstand the pressure of the water flow inside the ditch, the lateral pressure of the external soil, and possible ground loads. Its material is typically high-strength precast concrete, which is not only relatively inexpensive but also durable and adaptable to the harsh environment of long-term underground burial. During installation, a trench should first be dug in the ground to accommodate the main body 1, then the main body 1 should be placed inside, and... Soil backfilling is used to fix and bury the main body 1. Multiple main bodies 1 are connected to form a complete prefabricated ditch. The size of the main body 1 is determined according to the actual engineering needs. For example, in large-scale drainage projects, its pipe diameter may be larger to meet the rapid discharge of large amounts of rainwater or sewage; while in some small irrigation ditch scenarios, the pipe diameter is relatively small and the inner wall is relatively smooth to reduce water flow resistance, ensure that water can pass through smoothly, and improve drainage or water conveyance efficiency. At the same time, the outer wall of the main body 1 often has a certain texture or rough treatment, which can enhance the friction with the surrounding soil, making it more stable after backfilling and less prone to displacement.

[0025] In addition, the flared end 31 and the constricted end 32 are integrally formed with the main body 1 and are respectively set at both ends of the main body 1. Compared with the simple straight end, its unique S-shaped inner wall can more evenly distribute the stress at the connection when the flared end 31 and the constricted end 32 are connected, reducing the risk of damage to the connection due to water flow impact or external pressure. The inner wall of the constricted end 32 matches the inner wall of the flared end 31, forming a connection structure similar to an "elbow joint". This design enables multiple prefabricated trenches to be precisely connected when spliced.

[0026] In one feasible process, a profiled steel plate 311 is fixed to the inner wall of the flared end 31, and a profiled rubber plate 321 is fixed to the inner wall of the constricted end 32.

[0027] In the specific implementation process, it is worth noting that the profiled steel plate 311 fixed to the inner wall of the flared end 31 further strengthens the structural strength of the flared end 31. The profiled steel plate 311 can be made of high-quality corrosion-resistant steel of appropriate thickness, precisely shaped according to the S-curve of the flared end 31, and closely fits the inner wall. It can not only withstand the scouring force of water flow and prevent the inner wall from being eroded and worn by water flow over a long period of time, but also provide additional rigid support for the entire connection part, ensuring the stability of the shape of the flared end 31 during assembly and use. The profiled rubber plate 321 fixed to the inner wall of the constricted end 32 plays a key role in sealing and buffering. The profiled rubber plate 321 has good elasticity and water resistance, and can closely fit the flared end 31 during ditch connection. The inner wall is filled with tiny gaps to prevent water from seeping out. At the same time, when the ditch undergoes slight displacement due to factors such as temperature changes and foundation settlement during use, the rubber sheet can adapt itself with its own elasticity, acting as an expansion joint to maintain the reliability of the connection.

[0028] In one feasible embodiment, both the profiled steel plate 311 and the profiled rubber plate 321 are provided with positioning rods 4 on the side near the main body 1, and the positioning rods 4 are embedded inside the main body 1.

[0029] In the specific implementation process, it is worth noting that the positioning rod 4 on the imitation steel plate 311 is integrally formed with the imitation steel plate 311, and the positioning rod 4 on the imitation rubber plate 321 is integrally formed with the imitation rubber plate 321. The purpose is to improve the connection effect between the imitation rubber plate 321, the imitation steel plate 311 and the main body 1.

[0030] In one feasible embodiment, a flow-guiding concrete layer 6 is provided at the bottom of the inner wall of the main body 1, and pre-embedded steel bars 61 are embedded on both sides of the inner wall of the flow-guiding concrete layer 6. The ends of the pre-embedded steel bars 61 are embedded inside the main body 1, and temperature steel bars 62 are embedded inside the flow-guiding concrete layer 6.

[0031] In the specific implementation process, it is worth noting that the primary function of the guiding concrete layer 6 is to optimize the water flow pattern. Because the water flow velocity at the bottom of the ditch is relatively slow, it is prone to accumulating silt and other debris. The guiding concrete layer 6, through its special slope design, can guide the water flow to form a certain velocity distribution, facilitating the smooth discharge of silt with the water flow, reducing siltation inside the ditch, and lowering maintenance costs. The ends of the pre-embedded steel bars 61 are embedded inside the main body 1. These pre-embedded steel bars 61 act like a "skeleton," tightly connecting the guiding concrete layer 6 to the main body 1, enhancing the adhesion of the guiding layer and preventing it from sinking in the water. When the concrete layer 6 is impacted by water flow or deformed by the ditch, it may fall off. At the same time, the presence of steel bars also improves the bending and shear strength of the concrete layer 6 itself, enabling it to withstand the scouring force of water flow and the friction of silt, maintaining the integrity of the structure. The function of the temperature steel bars 62 is to cope with the impact of temperature changes on the ditch structure. In different seasons or in environments with large temperature differences between day and night, the concrete structure of the ditch will generate stress due to thermal expansion and contraction. The temperature steel bars 62 can restrain the deformation of the concrete, disperse the temperature stress, and avoid cracking of the concrete due to the concentration of temperature stress, thereby ensuring the durability of the concrete layer 6 and even the entire ditch.

[0032] In one feasible embodiment, a cover plate 5 is hinged to the top of the main body 1.

[0033] In the specific implementation process, it is worth noting that the cover plate 5 can be made of lightweight but strong materials, such as precast reinforced concrete slabs or high-strength composite material slabs. The main function of the cover plate 5 is to protect the facilities inside the ditch, prevent debris from falling into the ditch and affecting the water flow, and at the same time prevent people from accidentally falling into the ditch and causing safety accidents. The hinged design allows the cover plate 5 to be opened and closed easily, which facilitates regular inspection, cleaning and maintenance of the ditch. In some scenarios that require frequent operation, the opening angle and locking device of the cover plate 5 can also be optimized to improve the convenience of operation.

[0034] In one feasible embodiment, a padding layer 7 is provided at the bottom of the main body 1.

[0035] In the specific implementation process, it is worth noting that the cushion layer 7 can be composed of materials such as sand, gravel, and lime-soil. Its primary function is to evenly distribute the pressure borne by the main body 1, transfer the load of the superstructure to the foundation soil, and prevent the main body 1 from sinking or cracking due to excessive local pressure. In addition, the cushion layer 7 can also play an isolation role, preventing the main body 1 from directly contacting corrosive substances in the soil, protecting the bottom of the main structure from erosion, and extending the service life of the ditch. Under some soft soil foundation conditions, the thickness and material selection of the cushion layer 7 need to be adjusted according to the soil bearing capacity to ensure the stability of the entire ditch structure.

[0036] In one feasible approach, pre-drilled through holes 2 are provided on both sides of the inner wall of the main body 1.

[0037] In the specific implementation process, it is worth noting that the reserved through hole 2 can be used as a cable hole to facilitate the laying of various monitoring cables, such as water level monitoring and water quality monitoring cables, so as to realize real-time monitoring of the operation status of the ditch.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simulated elbow joint assembled trench, comprising a main body (1), characterized in that: The end of the main body (1) is provided with a connector (3), the connector (3) comprising: The flared end (31) is located at one end of the main body (1), and its inner wall is S-shaped; The constricted end (32) is located at the end of the main body (1) away from the flared end (31) and matches the inner wall of the flared end (31); In this process, multiple elbow joint-like assembled trenches are assembled by the cooperation of the flared end (31) and the constricted end (32).

2. The elbow joint-like assembled trench according to claim 1, characterized in that: The inner wall of the flared end (31) is fixed with a profiled steel plate (311), and the inner wall of the constricted end (32) is fixed with a profiled rubber plate (321).

3. The elbow joint-like assembled trench according to claim 2, characterized in that: The profiled steel plate (311) and the profiled rubber plate (321) are each provided with a positioning rod (4) on the side near the main body (1), and the positioning rod (4) is embedded inside the main body (1).

4. The elbow joint-like assembled trench according to claim 1, characterized in that: The bottom of the inner wall of the main body (1) is provided with a flow-guiding concrete layer (6). Both sides of the inner wall of the flow-guiding concrete layer (6) are embedded with pre-embedded steel bars (61). The ends of the pre-embedded steel bars (61) are embedded in the interior of the main body (1). Temperature steel bars (62) are embedded in the interior of the flow-guiding concrete layer (6).

5. The elbow joint-like assembled trench according to claim 1, characterized in that: The top of the main body (1) is hinged with a cover plate (5).

6. The elbow joint-like assembled trench according to claim 1, characterized in that: The bottom of the main body (1) is provided with a pad (7).

7. The elbow joint-like assembled trench according to claim 1, characterized in that: The inner walls of the main body (1) are provided with reserved through holes (2) on both sides.