Novel drainage ditch of prefabricated concrete structure
By using prefabricated concrete drainage ditches, the problems of low construction efficiency and inconvenient maintenance of traditional drainage ditches are solved, achieving efficient laying and convenient maintenance, and reducing the risk of blockage.
Patent Information
- Application Number
- CN202520417070.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Traditional drainage ditch construction is labor-intensive, inefficient, and inconvenient to maintain, making it unsuitable for rapid urban development.
The drainage ditch, which is a prefabricated concrete structure, includes a ditch body, interceptor plates, and ditch covers. It is connected by sealant and has a snap-fit design to enable quick installation and removal. The interceptor plates are used to block solid debris, and the ditch covers are used to drain accumulated water.
It improves laying efficiency, reduces labor intensity, facilitates maintenance, reduces the probability of blockage, and is easy to clean.
Smart Images

Figure CN223867373U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of water conservancy engineering, and particularly relates to a novel prefabricated drainage ditch of a concrete structure. BACKGROUND
[0002] The drainage ditch is an important facility in a drainage system, and the traditional drainage ditch is usually constructed by on-site masonry, which is high in labor intensity, low in paving efficiency, difficult to maintain after construction, and unable to adapt to rapid urban construction. SUMMARY
[0003] The present application aims to provide a prefabricated drainage ditch of a concrete structure, which is high in paving efficiency and convenient to maintain.
[0004] To achieve the above purpose, the present application provides a novel prefabricated drainage ditch of a concrete structure, which comprises a ditch body, the ditch body comprises an integrated bottom plate and side plates, the side plates are two and extend upward from a pair of opposite sides of the bottom plate, one end of the bottom plate and the two side plates is provided with a continuous embedded rim, and the other end is provided with a continuous accommodation slot, the inner wall of the accommodation slot is suitable for being coated with sealing glue, the embedded rim of one ditch body is suitable for being matched with the accommodation slot of another ditch body, and the inner walls of the two ditch bodies are flush after being matched, so that the fluctuation of water flow is less and the noise of drainage is smaller.
[0005] As a preferred, an intercepting plate is arranged between the two side plates, the intercepting plate is provided with a plurality of evenly arranged drainage holes, which can effectively intercept solid objects such as leaves, plastic bags and stones that are easy to cause the blockage of the drainage ditch, and the intercepting plate can be taken out for convenient cleaning.
[0006] As a preferred, the inner wall of the side plate is provided with a clamping edge, and the intercepting plate is placed on the two clamping edges in one ditch body, so that the placement of the intercepting plate is stable.
[0007] As a preferred, one side of the intercepting plate is provided with a clamping plate, which is suitable for being clamped between the clamping edges of adjacent ditch bodies, so that the movement of the intercepting plate is inhibited, and the stability of the placement of the intercepting plate in the ditch body is further improved.
[0008] As a preferred, the top of the ditch body is further provided with a ditch cover, and the ditch cover is provided with a plurality of equidistantly arranged drainage grooves, which can quickly guide the accumulated water on the road into the ditch body.
[0009] As a preferred, the top of the side plate is provided with a supporting table, and the edge of the supporting table is provided with an upwardly extending ditch edge, the ditch cover is placed on the two supporting tables of one ditch body and located between the two ditch edges, and the ditch edge can prevent the ditch cover from sliding out of the ditch body.
[0010] As a preferred embodiment, the side of the ditch cover that contacts the support platform is a raised section, the ditch body and the intercepting plate are both made of concrete, and the ditch cover is made of cast iron, so that the entire drainage ditch takes into account both low cost and reliability.
[0011] As a preferred embodiment, both side plates are inclined and gradually move away from each other from bottom to top, with the upper end of the drainage ditch being larger and the lower end smaller. This facilitates the laying operation and makes it less convenient to clean the inside of the drainage ditch or replace the ditch body later.
[0012] Compared with the prior art, the beneficial effects of this application are as follows:
[0013] (1) By prefabricating a uniformly sized trench structure, the labor intensity during the laying process is effectively reduced, while the laying efficiency is improved. At the same time, the trench unit is easy to dismantle and replace, which provides convenience for later maintenance.
[0014] (2) By setting up an interceptor plate structure in the ditch, it is possible to effectively block solids that are prone to blockage, reduce the probability of drainage ditch blockage, make the drainage process smoother, and the interceptor plate can be disassembled and installed, which will make it more convenient to clean and dredge the inside of the drainage ditch. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of the overall assembly state of the drainage ditch of this new type of prefabricated concrete structure.
[0016] Figure 2 This is a three-dimensional sectional view of the drainage ditch of this novel precast concrete structure after the ditch cover has been removed.
[0017] Figure 3 A three-dimensional structural diagram of the interceptor plate of the new precast concrete structure drainage ditch installed in the ditch body.
[0018] Figure 4 This is a first three-dimensional structural diagram of the drainage ditch body of the new type of prefabricated concrete structure.
[0019] Figure 5 This is a second three-dimensional structural diagram of the drainage ditch body of the new type of prefabricated concrete structure.
[0020] Figure 6 This is a three-dimensional structural diagram of the interceptor plate of the drainage ditch of this new type of precast concrete structure.
[0021] Figure 7 This is a three-dimensional structural diagram of the ditch cover of the new type of prefabricated concrete structure drainage ditch.
[0022] In the diagram: 1. Ditch cover; 101. Elevated part; 102. Drainage channel; 2. Ditch body; 201. Base plate; 202. Side plate; 203. Support platform; 204. Ditch edge; 205. Inner edge; 206. Clamping edge; 207. Leaving groove; 3. Interception plate; 301. Clamping plate; 302. Drainage hole. Detailed Implementation
[0023] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0024] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.
[0025] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0026] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.
[0027] like Figures 1-7 The novel precast concrete structure drainage ditch shown includes a ditch body 2 made of concrete material. The ditch body 2 includes an integral bottom plate 201 and side plates 202. There is only one bottom plate 201, which is usually horizontal. There are two side plates 202, which extend upward from a pair of opposite sides of the bottom plate 201 respectively. Both side plates 202 are inclined and gradually move away from each other from bottom to top. Normally, the two side plates 202 and the bottom plate 201 form an isosceles trapezoid.
[0028] One end of the base plate 201 and the two side plates 202 has a continuous inner edge 205, which forms a trapezoid with an open top. The other end of the base plate 201 and the two side plates 202 has a continuous relief groove 207. The shape of the relief groove 207 is the same as that of the inner edge 205. The inner wall of the relief groove 207 is coated with sealant. The inner edge 205 of one channel body 2 is used to fit with the relief groove 207 of another channel body 2, and the inner edge 205 of the other channel body 2 will fit with the relief groove 207 of the next channel body 2. After fitting, the inner walls of the two channel bodies 2 will remain flush. After the sealant cures, it will form a water-blocking sealing surface in the gap between the mating ends of the adjacent channel bodies 2.
[0029] A conveniently detachable interceptor plate 3 is installed between the two side plates 202. The interceptor plate 3 is also made of concrete and has several evenly arranged drainage holes 302. The drainage holes 302 only allow fluid to pass through, while things like leaves, packaging bags, or large stones cannot pass through. Therefore, the interceptor plate 3 also has a filtering function, which can effectively reduce debris falling to the bottom of the ditch body 2. The inner wall of each side plate 202 has a retaining edge 206. The length direction of the two retaining edges 206 is parallel to the extension direction of the ditch body 2, and the upper surfaces of the two retaining edges 206 are on the same horizontal plane. The interceptor plate 3 is placed on the two retaining edges 206 in a ditch body 2. One side of the interceptor plate 3 has a retaining plate 301, which fits between the retaining edges 206 of the adjacent ditch body 2. Usually, only one interceptor plate 3 needs to be installed in a ditch body 2. The interceptor plate 3, like the ditch body 2, is connected end to end, so as to form a continuous interception plane. Large solids cannot fall to the bottom of the ditch body 2 through the gap between adjacent interceptor plates 3.
[0030] The top of the ditch body 2 is also provided with a ditch cover 1, which is made of cast iron, usually ductile iron, to balance high strength and corrosion resistance. The ditch cover 1 has several equally spaced drainage channels 102, through which the water from the road surface enters the ditch body 2. The top of the side plate 202 has an integral support platform 203, and the edge of the support platform 203 has an upwardly extending groove edge 204. The groove edge 204 is also integral with the support platform 203. The upper surface of the support platform 203 is horizontal. The ditch cover 1 is placed directly on the two supports 203 of a ditch body 2 and is located between the two groove edges 204. The side of the ditch cover 1 that contacts the support platform 203 is a raised part 101. That is to say, the upper surface of the part between the sides of the ditch cover 1 is lower, which makes it easier for water to flow to the middle and facilitates the drainage of water from the road surface.
[0031] Installation method: First, dig a trapezoidal groove in the ground. Then, place the first trench body 2 into the soil groove and tamp it firmly with a rubber mallet. Next, apply uncured sealant to the inner wall of the relief groove 207 of the first trench body 2. Then, place the inner edge 205 of the second trench body 2 into the relief groove 207 of the first trench body 2, and similarly use a rubber mallet to tamp the second trench body 2 firmly into the soil groove. The sealant will gradually cure and form a dense sealing surface between the mating ends of the two trench bodies 2, making it difficult for moisture from the soil to enter the trench body 2. Continue to install the trench bodies 2 in this manner until the entire soil groove is filled. Then, the interceptor plates 3 are successively fastened onto the retaining edge 206 of the ditch body 2, and finally the ditch cover 1 is placed on top of the ditch body 2. The entire drainage ditch is then set up. When rainwater accumulates on the road surface, the solids washed away will first be intercepted by the ditch cover 1. Those that the ditch cover 1 cannot intercept will continue to fall onto the interceptor plates 3 with denser openings and be blocked. Most of the materials that eventually enter the ditch body 2 and flow are highly fluid. Compared with solids such as leaves, plastic bags and stones, they are less likely to cause blockages in the drainage ditch. Even if a blockage occurs, the ditch cover 1 can be removed from the blocked area and the interceptor plate 3 can be lifted for quick cleaning and restoration.
[0032] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.
Claims
1. A novel precast concrete drainage ditch, characterized in that: The ditch body (2) includes an integral base plate (201) and side plates (202). There are two side plates (202), which extend upward from a pair of opposite sides of the base plate (201). One end of the base plate (201) and the two side plates (202) has a continuous inner edge (205), and the other end has a continuous relief groove (207). The inner wall of the relief groove (207) is suitable for being coated with sealant. The inner edge (205) of one ditch body (2) is suitable for fitting with the relief groove (207) of the other ditch body (2). After fitting, the inner walls of the two ditch bodies (2) are flush.
2. The novel precast concrete drainage ditch as described in claim 1, characterized in that: An interceptor plate (3) is provided between the two side plates (202), and the interceptor plate (3) has a plurality of evenly arranged drainage holes (302).
3. The novel precast concrete drainage ditch as described in claim 2, characterized in that: The inner wall of the side plate (202) has a retaining edge (206), and the interceptor plate (3) is placed on two retaining edges (206) within one of the channels (2).
4. The novel precast concrete drainage ditch as described in claim 3, characterized in that: The interceptor plate (3) has a locking plate (301) on one side, which is adapted to be locked between the locking edges (206) of the adjacent ditch body (2).
5. The novel precast concrete drainage ditch as described in any one of claims 1 to 4, characterized in that: The top of the ditch body (2) is also provided with a ditch cover (1), and the ditch cover (1) has several drainage channels (102) arranged at equal intervals.
6. The novel precast concrete drainage ditch as described in claim 5, characterized in that: The top of the side plate (202) has a support (203), the edge of which has an upwardly extending groove (204), and the ditch cover (1) is placed on the two supports (203) of one of the ditch bodies (2) and located between the two groove edges (204).
7. The novel precast concrete drainage ditch as described in claim 6, characterized in that: The side of the ditch cover (1) that contacts the support platform (203) is a raised part (101). The ditch body (2) and the interceptor plate (3) are both made of concrete, while the ditch cover (1) is made of cast iron.
8. The novel precast concrete drainage ditch as described in claim 6, characterized in that: Both side plates (202) are inclined and the two side plates (202) gradually move away from each other from bottom to top.