A highway drainage channel

Abstract

The utility model discloses a highway drainage channel relates to highway drainage technical field, including broken line shape tank body, the water inlet of tank body is flared, and the fixed installation of V type filter screen is arranged in the water inlet of tank body, and the opening of V type filter screen is downward, and the horizontal section of tank body is spaced apart and is provided with a plurality of stoppers along its length direction, and the water face of stopper is the arc surface of inwards recess, and the arc surface is tangent with the groove bottom of tank body horizontal section. The highway drainage channel, through adopting V type opening downward filter screen, not only has increased the filtration area, more utilizes the hydrodynamics principle to realize the automatic guiding and separation of sundries, effectively prevents leaf and so on sheet material to adhere, overcomes the stubborn disease of traditional plane filter screen easy to block from the root; secondly, the stopper with the recessed arc surface is set in the horizontal section of tank body, and the arc surface is tangent with the groove bottom, so that the water flow can be smoothly diverted when impacting, realizes efficient energy dissipation, and the scouring damage of high speed water flow to the tank body is reduced obviously.

Description

Technical Field

[0001] This utility model relates to the field of highway drainage technology, specifically a highway drainage ditch. Background Technology

[0002] Highway drainage channels are key drainage facilities installed on both sides of the road and in the central median. Their core function is to quickly collect and drain rainwater from the road surface, ensuring roadbed stability and driving safety. Existing drainage channels are mostly linear trenches made of concrete or masonry. Flat grids are usually installed at their inlets to intercept debris. However, flat grids are easily covered by debris such as leaves and plastic bags, and they quickly become blocked, especially during heavy rain, causing the drainage function to fail and resulting in road flooding.

[0003] Therefore, it is necessary to propose a highway drainage ditch to solve the above problems. Utility Model Content

[0004] Technical problem to be solved: The purpose of this utility model is to provide a highway drainage ditch to solve the problem mentioned in the background art that the planar grid inside the water inlet of the existing drainage ditch is easily covered by debris such as leaves and plastic bags, and is quickly blocked, especially during heavy rain, which leads to the paralysis of drainage function and causes water accumulation on the road.

[0005] Technical Solution: To achieve the above objectives, this utility model is implemented through the following technical solution: a highway drainage ditch, including a zigzag-shaped ditch body, wherein the inlet of the ditch body is funnel-shaped, and a V-shaped filter screen is fixedly installed inside the inlet of the ditch body, with the opening of the V-shaped filter screen facing downwards. Multiple baffles are spaced apart along the length of the horizontal section of the ditch body, and the water-facing surface of the baffles is an inwardly concave arc-shaped surface, which is tangent to the bottom of the horizontal section of the ditch body.

[0006] Preferably, fixing blocks are fixedly installed on both sides of the water inlet of the tank, and the two sides of the V-shaped filter screen are respectively bolted to the corresponding fixing blocks.

[0007] Preferably, a triangular support block is fixedly installed at the bottom of the tank inlet. The support block is located inside the opening of the V-shaped filter screen and is bolted to the V-shaped filter screen. The tank, the fixed block, the support block, and the stop block are all integrally cast from concrete.

[0008] Preferably, the tank body is provided with diversion channels on both sides of the water inlet, and the two ends of the diversion channels are respectively connected to the tank body on the upper and lower sides of the V-shaped filter screen. An auxiliary filter screen is bolted into the drain outlet at the lower end of the diversion channel. The tank body and the diversion channels are cast as a single concrete unit.

[0009] Beneficial Effects: Compared with the prior art, this utility model provides a highway drainage trough with a unique structure and convenient use. By adopting a V-shaped filter screen with downward opening, it not only increases the filtration area but also utilizes the principle of hydrodynamics to achieve automatic guidance and separation of debris, effectively preventing the adhesion of leafy objects and other flaky materials, thus overcoming the problem of easy clogging of traditional flat filter screens at the root. Secondly, the baffle with a concave arc surface set in the horizontal section of the trough, whose arc surface is tangent to the bottom of the trough, allows the water flow to smoothly change direction when impacted, achieving efficient energy dissipation and significantly reducing the scouring damage of the trough body by high-speed water flow, greatly extending the service life of the structure. In addition, the diversion trough and auxiliary filter screen system added in Embodiment 2 constitute redundancy protection, which can actively divert the flow when the main filter screen is overloaded, further ensuring the reliability and anti-clogging capability of the system under extreme weather conditions. Attached Figure Description

[0010] Figure 1 This is a three-dimensional side view of the structure of this utility model; Figure 2 This is a partial cross-sectional schematic diagram of the structure of this utility model; Figure 3 This is a three-dimensional side view of the structure in Embodiment 2 of this utility model; Figure 4 This is a front view schematic diagram of the structure in Embodiment 2 of this utility model.

[0011] In the diagram: 1. Tank; 2. Fixing block; 3. V-shaped filter screen; 4. Baffle block; 5. Support block; 6. Diversion channel; 7. Auxiliary filter screen. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Example 1: This Example 1 provides a highway drainage ditch, which is a direct improvement on existing highway drainage facilities. It has a unique structure. Please refer to [link / reference]. Figure 1-4 As shown, it includes a zigzag-shaped trough 1, which is cast entirely from concrete. Its zigzag structure is adapted to the slope design of the highway subgrade and can quickly guide rainwater to flow in a directional manner. The inlet of the trough 1 is designed as a trumpet shape. This structure can expand the rainwater receiving range, improve the water collection efficiency, and prevent rainwater from overflowing on the outside of the trough 1.

[0014] A V-shaped filter screen 3 is fixedly installed inside the water inlet of the tank body 1. The opening of the V-shaped filter screen 3 is set downward. Its filter screen body is made of stainless steel plate by stamping. The filter screen aperture is set according to the size of common debris on highways (preferably 5-10mm), which can effectively intercept debris such as stones, branches, and plastic bags. Fixing blocks 2 are symmetrically fixed on both sides of the water inlet of the tank body 1. The fixing blocks 2 and the tank body 1 are integrally cast concrete structures. The two sides of the V-shaped filter screen 3 are detachably connected to the corresponding fixing blocks 2 by bolts, which facilitates the maintenance and replacement of the filter screen.

[0015] A triangular support block 5 is fixedly installed at the bottom of the inlet of the tank body 1. The support block 5 is also integrally cast with the tank body 1. It is located inside the opening of the V-shaped filter screen 3 and is connected to the middle of the V-shaped filter screen 3 by bolts to form a three-point fixing structure, which improves the impact resistance of the V-shaped filter screen 3 and prevents the filter screen from deforming due to rainwater impact. On the horizontal section of the tank body 1, multiple baffles 4 are evenly spaced along its length. The baffles 4 are integrally cast with the tank body 1. The water-facing surface of the baffles 4 is designed as an inwardly concave arc surface, and this arc surface is tangent to the bottom of the horizontal section of the tank body 1 to form a smooth transition structure.

[0016] Working principle: When rainwater from the highway surface flows into the drainage channel, the funnel-shaped inlet quickly collects the rainwater. The rainwater first flows through the V-shaped filter screen 3, which intercepts solid debris in the rainwater through its pores, achieving preliminary filtration. Since the opening of the V-shaped filter screen 3 faces downward, its inclined surfaces on both sides form a bidirectional flow guiding structure. When the rainwater impacts the filter screen, it generates a force to both sides, which can automatically separate larger debris to both sides of the inlet, preventing debris from accumulating in the middle of the filter screen.

[0017] The inclined filter screen forms an angle with the direction of rainwater flow, preventing flaky debris (such as leaves and plastic film) from adhering to the screen and fundamentally solving the problem of easy clogging of traditional flat filters. After filtration, the rainwater enters the horizontal section of the tank 1. When it flows past the baffle 4, the rainwater impacts the arc-shaped water-facing surface of the baffle 4, and the water flow direction changes along the arc-shaped surface. Kinetic energy is converted into heat energy through water flow diffusion and friction. The design of the arc-shaped surface being tangent to the bottom of the tank avoids water flow impact and reduces local scouring of the bottom of the tank 1. Multiple baffles 4 set at intervals form a multi-stage energy dissipation structure, gradually reducing the rainwater flow velocity and ensuring that the rainwater is discharged in a stable state, significantly extending the service life of the tank 1.

[0018] Example 2: Based on Example 1, this example adds diversion channels 6 on both sides of the inlet of the tank 1. The diversion channels 6 are made of concrete and are integrally cast with the tank 1. The upper end of the diversion channel 6 is connected to the upstream side of the V-shaped filter screen 3, and the lower end is connected to the downstream side of the V-shaped filter screen 3, forming a bypass diversion channel. An auxiliary filter screen 7 is detachably installed in the drain outlet at the lower end of the diversion channel 6 by bolts. The aperture of the auxiliary filter screen 7 is the same as that of the V-shaped filter screen 3, which is used to perform secondary filtration of rainwater in the diversion channel to prevent debris from entering the downstream of the tank 1 through the diversion channel 6.

[0019] Working principle: During extreme rainfall, some rainwater can directly enter the tank 1 through the diversion channel 6, reducing the water pressure at the inlet of the diversion channel 1, preventing rainwater overflow and improving drainage efficiency; when there is a lot of debris at the inlet, under the impact of rainwater, some larger or floating debris will enter the diversion channel 6 with the diverted rainwater, and be intercepted in the diversion channel by the auxiliary filter screen 7, reducing the filtration load of the V-shaped filter screen 3 and ensuring the unobstructed flow of the main filter screen.

[0020] 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 highway drainage ditch, comprising a zigzag-shaped ditch body (1), characterized in that: The inlet of the tank (1) is trumpet-shaped. A V-shaped filter screen (3) is fixedly installed inside the inlet of the tank (1). The opening of the V-shaped filter screen (3) faces downward. Multiple baffles (4) are spaced along the length of the horizontal section of the tank (1). The water-facing surface of the baffle (4) is an inwardly concave arc surface, and the arc surface is tangent to the bottom of the horizontal section of the tank (1).

2. The highway drainage ditch according to claim 1, characterized in that: Fixing blocks (2) are fixedly installed on both sides of the inlet of the tank (1), and the two sides of the V-shaped filter screen (3) are bolted to the corresponding fixing blocks (2).

3. A highway drainage ditch according to claim 1, characterized in that: A triangular support block (5) is fixedly installed at the bottom of the inlet of the tank (1). The support block (5) is located inside the opening of the V-shaped filter screen (3) and is bolted to the V-shaped filter screen (3). The tank (1), the fixed block (2), the support block (5), and the stop block (4) are all integrally cast concrete.

4. A highway drainage ditch according to claim 1, characterized in that: The inlet of the tank (1) is provided with a diversion channel (6) on both sides. The two ends of the diversion channel (6) are connected to the tank (1) on the upper and lower sides of the V-shaped filter screen (3) respectively. An auxiliary filter screen (7) is bolted in the drain outlet at the lower end of the diversion channel (6). The tank (1) and the diversion channel (6) are cast in one piece of concrete.

Images