Precast concrete drainage ditch

Abstract

The invention provides a prefabricated concrete drainage ditch, and belongs to the technical field of drainage equipment, the prefabricated concrete drainage ditch comprises a plurality of pipe ditches and a plurality of scouring plates, the adjacent pipe ditches are mutually connected, the inner walls of the two sides of each pipe ditch are respectively provided with a groove body, buoyancy assemblies are slidably connected in the groove bodies, and the two ends of each scouring plate are respectively connected with the buoyancy assemblies on the two sides. Flow guide plates are arranged on the inner walls of the two sides of the pipe ditches respectively, the lower ends of the flow guide plates extend to the positions above the impact plates, the multiple pipe ditches are connected to form the drainage ditch, cast-in-place is not needed, the construction efficiency of the drainage ditch is improved, sewage on the road surface is converged into the drainage ditch, the sewage is guided to the scouring plate through the flow guide plates, and therefore the drainage ditch is formed. Sewage is discharged from the inclined upper end to the inclined lower end of the flushing plate, and the sewage generates certain impact force after passing through the flushing plate to flush garbage or sludge at the bottom of the pipe ditch, so that accumulation of the garbage and the sludge in the pipe ditch is effectively reduced, the pipe ditch blockage condition is reduced, and the sewage discharge efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage equipment, and particularly relates to a precast concrete drainage ditch. Background Art

[0002] With the acceleration of the urbanization process, urban construction requires more municipal infrastructure. At the same time, the impact of engineering construction on the environment has become a key factor in evaluating the level of urban development. Due to the continuous flow of people and vehicles in the urban area, in order to reduce the adverse impact on people's lives, shorten the on-site construction period, reduce construction pollution, and improve labor productivity and quality and safety levels. In recent years, precast concrete components have been widely used in the field of municipal engineering. It is understood that at present, some highways in China have used precast oval drainage culverts. A large number of small precast concrete components have also been used in the Hong Kong-Zhuhai-Macao immersed tube tunnel, such as precast fair-faced concrete covers, grooves, etc. In addition, precast concrete components have also been widely used in the fields of underground power cable ducts, bridge engineering, etc. However, in the field of highway mountain tunnel engineering, the main structure is still mainly cast-in-place, including the curb structure. Since the traditional drainage ditch structure is generally small in size and has many sharp corners, it is difficult to ensure the construction quality by erecting formwork on-site for casting. Problems such as rough surfaces of the side grooves, poor drainage, and debris accumulation often occur, and the construction efficiency of erecting formwork on-site is low and the construction period is long. Summary of the Invention

[0003] The present invention provides a precast concrete drainage ditch, which realizes water purification and water circulation, improves the utilization rate of water resources, and effectively avoids the death of fertilized eggs during transportation.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A precast concrete drainage ditch includes a plurality of pipe ditches and a plurality of scouring plates. Adjacent pipe ditches are connected to each other. Grooves are respectively provided on the inner walls of both sides of the pipe ditch. A buoyancy assembly is slidably connected in the groove. Both ends of the scouring plate are respectively connected to the buoyancy assemblies on both sides. The scouring plate is inclined. Guide plates are respectively provided on the inner walls of both sides of the pipe ditch. The lower end of the guide plate extends above the impact plate.

[0006] Preferably, the buoyancy assembly includes a buoyancy plate and a connecting rod. The buoyancy plate is slidably connected in the groove. The connecting rod is connected above the buoyancy plate. The free end of the connecting rod is connected to the scouring plate.

[0007] Preferably, a support ring for supporting the buoyancy assembly is provided on the inner wall of the groove.

[0008] Preferably, diversion surfaces are respectively provided on both sides of the scouring plate.

[0009] Preferably, the trench is provided with a cover plate.

[0010] Preferably, side plates are connected to the notch of the trough body. Upper channels and lower channels are provided on the side plates. The upper end of the trough body communicates with the trench through the upper channels, and the lower end of the trough body communicates with the trench through the lower channels.

[0011] Preferably, a filter screen is provided on the lower channel.

[0012] Preferably, a bottom plate is provided at one end of the trench. A guiding and limiting seat is provided at the bottom of the bottom plate. An installation groove is provided at the bottom of the other end of the trench. A guiding and limiting groove is provided at the bottom of the installation groove. The installation groove cooperates with the bottom plate, and the guiding and limiting seat cooperates with the guiding and limiting groove.

[0013] Preferably, limiting plates are provided above the two side walls at one end of the trench. Limiting grooves are provided above the two side walls at the other end of the trench. The limiting plates cooperate with the limiting grooves.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] By connecting a plurality of prefabricated trenches to form a drainage ditch, there is no need to pour the drainage ditch on site, which reduces the time required for building the drainage ditch, ensures the construction quality, effectively reduces the roughness of the trench surface, poor drainage and silt accumulation, improves the construction efficiency of the drainage ditch, the sewage on the road surface converges and is discharged into the drainage ditch, the sewage is guided by the guide plate to the flushing plate, and the sewage is discharged from the inclined upper end to the inclined lower end of the flushing plate. The sewage generates a certain impact force after passing through the flushing plate, flushing the garbage or silt at the bottom of the trench, effectively reducing the accumulation of garbage and silt in the trench, thereby reducing the situation of trench blockage and improving the sewage discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a precast concrete drainage ditch according to Embodiment 1 of the present invention;

[0017] Figure 2 is a three-dimensional structural schematic diagram of a precast concrete drainage ditch according to Embodiment 1 of the present invention;

[0018] Figure 3 is a three-dimensional structural schematic diagram of a precast concrete drainage ditch according to Embodiment 2 of the present invention;

[0019] Figure 4 is a three-dimensional structural schematic diagram of a precast concrete drainage ditch according to Embodiment 2 of the present invention;

[0020] Figure 5 is a three-dimensional structural schematic diagram of a precast concrete drainage ditch according to Embodiment 3 of the present invention;

[0021] Figure 6 Schematic three-dimensional structure diagram of a precast concrete drainage ditch according to Embodiment 3 of the present invention;

[0022] Figure 7 Schematic three-dimensional structure diagram of the connection of several pipe ditches according to Embodiment 3 of the present invention;

[0023] In the figure, 1, pipe ditch; 2, scouring plate; 3, tank; 4, buoyancy assembly; 5, buoyancy plate; 6, connecting rod; 7, guiding surface; 8, guiding plate; 9, cover plate; 10, first inclined surface; 11, second inclined surface; 12, side plate; 13, upper channel; 14, lower channel; 15, filter screen; 16, bottom plate; 17, guiding and limiting seat; 18, guiding and limiting groove; 19, limiting plate; 20, limiting groove; 21, drainage ditch; 22, installation groove. Detailed implementation manners

[0024] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention will be further described in conjunction with the accompanying drawings.

[0025] Embodiment 1

[0026] Refer to Figures 1 to 2 , a precast concrete drainage ditch provided by the present invention includes a plurality of pipe ditches 1 and a plurality of scouring plates 2. Adjacent pipe ditches 1 are connected to each other, reducing the time required for the construction of the drainage ditch 21, ensuring the construction quality, effectively reducing the roughness of the trench surface, poor drainage, and silt accumulation, improving the construction efficiency of the drainage ditch 21. Both inner walls of the pipe ditch 1 are respectively provided with tanks 3, and a buoyancy assembly 4 is slidably connected in the tank 3. Both ends of the scouring plate 2 are respectively connected to the buoyancy assemblies 4 on both sides. The scouring plate 2 is inclined. Sewage flows from the inclined upper end to the inclined lower end on the inclined scouring plate 2, so that a large impact force is generated when the sewage is discharged, scouring the garbage or silt accumulated at the bottom of the pipe ditch 1, avoiding the accumulation of garbage or silt at the bottom of the pipe ditch 1, and improving the sewage discharge efficiency of the pipe ditch 1. Guiding plates 8 are respectively arranged on both inner walls of the pipe ditch 1. Among them, guiding surfaces 7 are respectively arranged on both sides of the scouring plate 2, playing a guiding role, effectively preventing sewage from flowing to both sides of the scouring plate 2, converging sewage to the scouring plate 2, increasing the impact force of the sewage on the bottom of the pipe ditch 1, and improving the effect of scouring the garbage or silt accumulated at the bottom of the pipe ditch 1. The lower end of the guiding plate 8 extends above the impact plate. Sewage flowing into the pipe ditch 1 from the road surface flows back to the scouring plate 2 through the guiding plate 8. The sewage enters the tank 3. Under the action of water buoyancy, the buoyancy assembly 4 drives the scouring plate 2 to move upward, so that the scouring plate 2 is located above the water surface in the pipe ditch 1, effectively reducing the probability that the scouring plate 2 is immersed in the sewage in the pipe ditch 1. Among them, the bottom of the tank 3 is provided with a first inclined surface 10 from top to bottom, and a second inclined surface 11 along the water flow direction is arranged on one side wall of the tank 3.

[0027] The buoyancy assembly 4 includes a buoyancy plate 5 and a connecting rod 6. The buoyancy plate 5 is slidably connected to the tank body 3. The connecting rod 6 is connected above the buoyancy plate 5. The free end of the connecting rod 6 is connected to the scouring plate 2. The sewage in the tank body 3 causes the buoyancy plate 5 to move upward, thereby driving the connecting rod 6 and the scouring plate 2 to move upward. The connecting rod 6 is an L-shaped connecting rod 6, and the end of the L-shaped connecting rod 6 passes through the upper channel 13 and extends into the trench 1.

[0028] A support ring (not marked) for supporting the buoyancy assembly 4 is provided on the inner wall of the tank body 3, which plays a role in supporting the buoyancy assembly 4 and defines the lowest position for the downward movement of the buoyancy plate 5.

[0029] The trench 1 is provided with a cover plate 9, which improves the safety of the trench 1 and plays a certain filtering role at the same time.

[0030] During use, the trench 1 is installed in the dug trench. Two adjacent trenches 1 are connected to each other to form a drainage ditch 21. When the sewage on the road surface converges and is discharged into the drainage ditch 21, the sewage is diverted to the scouring plate 2 through the deflector 8. The sewage is discharged from the inclined upper end to the inclined lower end of the scouring plate 2. A certain impact force is generated after the sewage passes through the scouring plate 2, scouring the garbage or silt at the bottom of the trench 1, effectively reducing the accumulation of garbage and silt in the trench 1, thereby reducing the blockage of the trench 1 and improving the sewage discharge efficiency. The sewage enters the tank body 3. Under the buoyancy action, the buoyancy assembly 4 drives the scouring plate 2 to move upward, so that the scouring plate 2 is located above the water surface in the trench 1, which can effectively reduce the probability of the scouring plate 2 being immersed in the sewage in the trench 1 and does not hinder the sewage discharge.

[0031] Embodiment 2

[0032] See Figures 3 to 4 , the difference between this embodiment and Embodiment 1 is that: a side plate 12 is connected to the notch of the tank body 3, which plays a protective role. The side plate 12 is fixed to the trench 1 by bolts and is detachable, which is convenient for maintenance. The side plate 12 is provided with an upper channel 13 and a lower channel 14. The upper end of the tank body 3 is communicated with the trench 1 through the upper channel 13, which allows the buoyancy assembly 4 to move up and down. The lower end of the tank body 3 is communicated with the trench 1 through the lower channel 14, and the sewage enters the tank body 3 from the lower channel 14 to make the buoyancy assembly 4 float.

[0033] A filter screen 15 is provided on the lower channel 14, and the filter screen 15 can effectively block the entry of garbage into the tank body 3.

[0034] Embodiment 3

[0035] See Figures 5 to 7, The difference between this embodiment and Embodiment 1 is that: a bottom plate 16 is provided at one end of the trench 1, a guiding and limiting seat 17 is provided at the bottom of the bottom plate 16, an installation groove 22 is provided at the bottom of the other end of the trench 1, a guiding and limiting groove 18 is provided at the bottom of the installation groove 22, the installation groove 22 cooperates with the bottom plate 16, and the guiding and limiting seat 17 cooperates with the guiding and limiting groove 18. When adjacent trenches 1 are connected, the guiding and limiting groove 18 of this trench 1 and the guiding and limiting seat 17 make the adjacent two trenches 1 aligned left and right. And under the action of the guiding and limiting seat 17, this trench 1 moves towards one side of the previously installed trench 1, better connecting the adjacent trenches 1 and reducing the gap between adjacent trenches 1.

[0036] Limit plates 19 are provided above the two side walls at one end of the trench 1, and limit grooves 20 are provided above the two side walls at the other end of the trench 1. The limit plates 19 and the limit grooves 20 cooperate with each other to limit the height of the trench 1 installed later, making the adjacent two trenches 1 flush, and making the bottom surface of the drainage ditch 21 flush, effectively reducing the accumulation of garbage or silt.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A precast concrete drainage ditch, characterized in that: The invention comprises a plurality of pipe trenches (1) and a plurality of scouring plates (2), wherein the adjacent pipe trenches (1) are connected to each other, groove bodies (3) are respectively provided on the inner walls on both sides of the pipe trench (1), a buoyancy assembly (4) is slidably connected in the groove bodies (3), the two ends of the scouring plates (2) are respectively connected to the buoyancy assemblies (4) on both sides, the scouring plates (2) are arranged in an inclined manner, and guide plates (8) are respectively provided on the inner walls on both sides of the pipe trench (1), and the lower ends of the guide plates (8) extend to the top of the impact plates.

2. A precast concrete drain ditch as claimed in claim 1, characterized in that: The buoyancy assembly (4) comprises a buoyancy plate (5) and a connecting rod (6), wherein the buoyancy plate (5) is slidably connected in the trough body (3), the connecting rod (6) is connected above the buoyancy plate (5), and the free end of the connecting rod (6) is connected to the scouring plate (2).

3. A precast concrete drain ditch as claimed in claim 1, characterized in that: A support ring for supporting the buoyancy assembly (4) is provided on the inner wall of the tank body (3).

4. A precast concrete drain ditch as claimed in claim 1, characterized in that: The two sides of the scouring plate (2) are respectively provided with flow guide surfaces (7).

5. The precast concrete drain ditch according to claim 1, characterized in that: The pipe trench (1) is provided with a cover plate (9).

6. A precast concrete drain ditch as claimed in claim 1, characterized in that: The notch of the trough body (3) is connected to a side plate (12), and the side plate (12) is provided with an upper channel (13) and a lower channel (14); the upper end of the trough body (3) is connected to the pipe ditch (1) through the upper channel (13), and the lower end of the trough body (3) is connected to the pipe ditch (1) through the lower channel (14).

7. A precast concrete drain ditch as claimed in claim 6, characterized in that: The lower channel (14) is provided with a filter screen (15).

8. The precast concrete drain ditch according to claim 1, characterized in that: A bottom plate (16) is provided at one end of the pipe trench (1), a guide limit seat (17) is provided at the bottom of the bottom plate (16), a mounting groove (22) is provided at the bottom of the other end of the pipe trench (1), a guide limit groove (18) is provided at the bottom of the mounting groove (22), the mounting groove (22) cooperates with the bottom plate (16), and the guide limit seat (17) cooperates with the guide limit groove (18).

9. The precast concrete drain ditch according to claim 1, characterized in that: A limiting plate (19) is provided above the two side walls at one end of the pipe trench (1), and a limiting groove (20) is provided above the two side walls at the other end of the pipe trench (1), and the limiting plate (19) and the limiting groove (20) cooperate with each other.

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