Drainage buried culvert front sewage intercepting and water guiding device

Abstract

The utility model discloses a drainage buried culvert front sewage intercepting and water guiding device, which relates to the technical field of municipal drainage, and comprises a drainage open trench, a drainage buried culvert and a side sewage intercepting assembly, the side sewage intercepting assembly comprises a side sewage intercepting groove and a central water guiding groove arranged in the side sewage intercepting groove; a gap is reserved between the side sewage intercepting groove and the central water guide groove to form a sludge settling area; an arc-shaped water guide area is arranged on the central water guide groove; the drainage open trench and the drainage buried culvert are respectively communicated with two ends of the side sewage intercepting groove; a sewage intercepting grating is arranged between the drainage buried culvert and the central water guide groove; impurities in drained water are effectively intercepted in a silt settling area by arranging side sewage intercepting grooves, so that the drainage buried culvert is prevented from being blocked while cleaning is facilitated; by arranging a central water guide groove and an arc-shaped water guide area, the water flow speed is increased, the water passing capacity of the drainage buried culvert is improved, and the drainage buried culvert is prevented from being blocked; the structure is simple, implementation is convenient, and applicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal drainage, in particular to a sewage interception and water guiding device in front of a drainage culvert. Background Art

[0002] In the design process of rainwater drainage, when the drainage ditch is connected to the drainage culvert, it is usually considered to set a grille at the front end of the drainage culvert to intercept impurities and prevent the drainage culvert from being blocked. However, in the actual operation process, we found that the impurities were blocked at the front end of the drainage culvert after being intercepted by the grille, which caused siltation and blockage at the front end of the drainage culvert, and it was more likely to cause blockage of the drainage system. Therefore, designing a certain sewage interception device at the front end of the drainage culvert to intercept impurities in time can effectively prevent the blockage of the drainage culvert; when the drainage ditch is connected to the drainage culvert, the drainage culvert usually considers full pipe flow discharge without considering safety overheight, resulting in the drainage culvert water section usually being smaller than the front end drainage ditch water section. When the discharge exceeds the design recurrence period of rainwater, the drainage culvert is not drained in time, causing rainwater congestion.

[0003] The utility model with patent number CN214090228U discloses a ditch wall structure for improving the flow capacity of old urban drainage culverts, including a culvert body, a plug hole is opened on the upper surface of the culvert body, and the outer wall of the open end of the plug hole is snap-connected to the horizontal plate, the outer wall of the bottom surface of the horizontal plate is welded to the upper surface of the vertical plate, and the outer wall of the bottom surface of the vertical plate passes through the plug hole and the culvert hole and extends to the inside of the slot, the culvert hole is opened on the outer wall of the culvert hole, and the outer wall of the vertical plate is opened with a filtering hole, the upper surface of the culvert body is opened with one end of the through hole, and the other end of the through hole extends to the inner wall of the top surface of the culvert hole; when in use, the water flow inside the culvert hole can be effectively filtered first through the filtering hole on the outer wall of the vertical plate, and the debris larger than the diameter of the filtering hole after filtering will slide into the arc groove under the action of gravity, and then the cover plate can be removed from the culvert hole along the vertical hole. The inner wall of the through hole moves out of the culvert, so that the debris inside the arc groove can be taken out of the culvert in time along the through hole, which effectively realizes the timely removal of the debris inside the arc groove from the inside of the culvert, and then by rotating the handle along the connecting axis inside the groove, and then by holding the handle tightly, the horizontal plate can be pulled out along the opening end of the plug hole, and then the vertical plate can be pulled out of the culvert along the slot, and then the filter holes on the outer wall of the vertical plate can be timely dredged, repaired and maintained, which effectively realizes the convenience of disassembly and installation of the vertical plate and the filter hole, and also effectively improves the flow capacity of the drainage culvert; in this patent, the debris in the water flow that is larger than the diameter of the filter hole will be impacted by the water flow and attached to the vertical plate in the process of flowing with the water flow, and will not slide into the arc groove. The debris will block the filter hole, thereby blocking the entire culvert and affecting the water flow capacity of the culvert. Utility Model Content

[0004] The main purpose of the utility model is to provide a pre-sewer interception and water guiding device for a drainage culvert, which is used to solve the problem that when the culvert is filtering debris in water, the debris adheres to the culvert under the action of water flow and thus blocks the culvert.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a drainage culvert front sewage interception and water guiding device, comprising a drainage ditch and a drainage culvert; and also comprising:

[0006] The side sewage interception component comprises a side sewage interception trough and a central water guide trough arranged in the side sewage interception trough; a distance is left between the side sewage interception trough and the central water guide trough to form a sludge settling area; an arc-shaped water guide area is arranged on the central water guide trough; the open drainage ditch and the drainage culvert are respectively connected with the two ends of the side sewage interception trough; a sewage interception grille is arranged between the drainage culvert and the central water guide trough.

[0007] As a further improvement of the utility model, the side sewage interception trough is arranged on one side or both sides of the open drainage ditch; the depth of the sludge settling area is not less than 0.2m.

[0008] As a further improvement of the utility model, the spacing between the bars of the sewage interception grille is 10-40 mm, and the width of the flow passage formed is not less than 0.3 m.

[0009] As a further improvement of the present invention, the width of the central water guide groove is the same as the net width of the open drainage ditch; a water gap is formed between the front end of the central water guide groove along the drainage direction and the side sewage interception ditch; the width of the water gap is not less than 0.3m.

[0010] As a further improvement of the present invention, the starting end of the arc-shaped water-guiding area is higher than the bottom of the open drainage ditch, and the end is flush with the front end bottom of the drainage culvert; the longitudinal slope of the bottom of the arc-shaped water-guiding area is greater than 0.1.

[0011] The beneficial effects of the utility model are embodied in:

[0012] By setting up side sewage interception chutes, impurities in the drainage can be effectively retained in the sludge area, which is convenient for cleaning and prevents the drainage culvert from being blocked; by setting up a central water guide trough and an arc-shaped water guide area, the water flow velocity is increased, and the water flow capacity of the drainage culvert is increased to prevent the drainage culvert from being blocked; the structure is simple, the implementation is convenient, and the applicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic plan view of a sewage interception and water guiding device in front of a drainage culvert according to the utility model;

[0014] Figure 2 It is a schematic diagram of the single-side arrangement of the side sewage interception trough of a drainage culvert front sewage interception and water guiding device of the utility model;

[0015] Figure 3It is a schematic diagram of another single-side arrangement of the side sewage interception groove of the front sewage interception and water guiding device of the drainage culvert of the utility model;

[0016] Figure 4 The utility model is a drainage culvert front sewage interception and water guiding device Figure 1 Schematic diagram of the cross section of AA;

[0017] Figure 5 This is a schematic diagram of the structure of a central water guide trough of a drainage culvert front-mounted sewage interception and water guide device according to the utility model;

[0018] Description of reference numerals:

[0019] 2. Open drainage ditch; 3. Drainage culvert; 4. Side sewage interception trough; 5. Sewage interception grille; 6. Central water guide channel; 7. Mud settling area; 8. Arc-shaped water guide area; 9. Water gap. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In one embodiment, see Figure 1 The utility model discloses a sewage interception and water guiding device in front of a drainage culvert 3, comprising an open drainage ditch 2, a drainage culvert 3, and a lateral sewage interception component.

[0022] Among them, the lateral sewage interception component includes a lateral sewage interception trough 4 and a central water guide trough 6 arranged in the lateral sewage interception trough 4; a spacing is left between the lateral sewage interception trough 4 and the central water guide trough 6 to form a sludge settling area 7; an arc-shaped water guide area 8 is provided on the central water guide trough 6; the open drainage ditch 2 and the drainage culvert 3 are respectively connected to the two ends of the lateral sewage interception trough 4; a sewage interception grille 5 is provided between the drainage culvert 3 and the central water guide trough 6.

[0023] Preferably, the open drainage ditch 2 has a net width of 1.0 m and a net depth of 1.0 m, and the net width of the drainage culvert 3 is 1.0 m.

[0024] For further information, see Figure 1 , 2 3. The side sewage interception trough 4 is arranged on one side or both sides of the open drainage ditch 2; the depth of the sludge settling area 7 is not less than 0.2m.

[0025] Preferably, the side sewage interception chute 4 is a rectangular body with a hollow interior, and the side sewage interception chute 4 has a length of 2.8 m in the longitudinal drainage direction of the open drainage ditch 2 and a width of 0.5 m in the vertical drainage direction.

[0026] Preferably, a first through hole and a second through hole are respectively provided at both ends of the lateral sewage interception chute 4, the lateral sewage interception chute 4 is connected with the open drainage ditch 2 through the first through hole, and the lateral sewage interception chute 4 is connected with the drainage culvert 3 through the second through hole.

[0027] In the above arrangement, water flowing from the open drainage ditch 2 enters the water gap 9 from the first through hole, and then enters the side sewage interception trough 4. Most of the impurities in the water flow are settled in the sludge settling area 7. The settled water flows from the arc-shaped water guide area 8 into the drainage culvert 3.

[0028] For further information, see Figure 1 The bar spacing of the sewage interception grid 5 is 10-40 mm, and the width of the flow channel formed is not less than 0.3 m.

[0029] Preferably, the spacing between the bars of the pollution interception grid 5 is 10 mm, and the width of the formed flow passage is 0.5 m.

[0030] For further information, see Figure 1 The width of the central water channel 6 is the same as the net width of the open drainage ditch 2; a water gap 9 is formed between the front end of the central water channel 6 along the drainage direction and the side sewage interception ditch 4; the width of the water gap 9 is not less than 0.3m.

[0031] Preferably, the length of the central water channel 6 is 1.8 m; the width of the water gap is 0.5 m.

[0032] Preferably, the central water guide groove 6 adopts a reinforced concrete structure, and the central water guide groove 6 is a rectangular structure. The bottom end of the central water guide groove 6 is fixedly connected to the bottom end of the side sewage interception groove 4, and a water flow gap is formed between the front end of the central water guide groove 6 and the side end of the side sewage interception groove 4 with a first through hole.

[0033] For further information, see Figure 4 , 5 The starting end of the arc-shaped water-guiding area 8 is higher than the bottom of the drainage open ditch 2, and the end is level with the front end bottom of the drainage culvert 3; the longitudinal slope of the bottom of the arc-shaped water-guiding area 8 is greater than 0.1.

[0034] Preferably, the arcuate water guide area 8 is arranged on the upper end surface of the central water guide groove 6, the cross-section of the arcuate water guide area 8 is "V"-shaped, the large mouth of the arcuate water guide area 8 is far away from the bottom end of the side sewage interception groove 4, and the longitudinal slope of the bottom of the arcuate water guide area 8 is 0.22.

[0035] Preferably, the starting end of the arc-shaped water-guiding area 8 is 0.4 m higher than the bottom of the open drainage ditch 2 .

[0036] In the above arrangement, the starting end of the arc-shaped water-guiding area 8 is higher than the bottom of the open drainage ditch 2, and the interior is a "V"-shaped structure to increase the flow capacity.

[0037] In this embodiment, when the water flow is relatively small, the water flows through the open drainage ditch 2 and the water gap 9 into the side sewage intercepting trough 4. Since the starting end of the central water guide trough 6 is higher than the bottom end of the open drainage ditch 2, large particles of impurities are trapped at the front end of the central water guide trough 6. The silt in the water flow entering the side sewage intercepting trough 4 through the impact of the water flow is deposited in the silt settling area 7. The impurities in the water flow in the silt settling area 7 are intercepted by the sewage interception grille 5 and located in the side sewage interception trough 4, which is convenient for cleaning while preventing the drainage culvert 3 from being blocked. The water flow through the sewage interception grille 5 enters the drainage culvert 3 and is discharged; when the water flow is relatively large, the water flow passes through the arc-shaped water guide area 8 on the central water guide trough 6, and the water flow speed is increased through the arc-shaped water guide area 8, while the water flow capacity of the drainage culvert 3 is increased to prevent the drainage culvert 3 from being blocked.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drainage culvert front sewage interception and water diversion device, comprising an open drainage ditch (2) and a drainage culvert (3); characterized in that: Also includes: The side sewage interception assembly comprises a side sewage interception trough (4) and a central water guide trough (6) arranged in the side sewage interception trough (4); a distance is left between the side sewage interception trough (4) and the central water guide trough (6) to form a sludge settling area (7); an arc-shaped water guide area (8) is provided on the central water guide trough (6); the open drainage ditch (2) and the drainage culvert (3) are respectively connected to the two ends of the side sewage interception trough (4); and a sewage interception grille (5) is provided between the drainage culvert (3) and the central water guide trough (6).

2. A drainage culvert front sewage interception and water guiding device according to claim 1, characterized in that: The side sewage interception trough (4) is arranged on one side or both sides of the open drainage ditch (2); the depth of the sludge settling area (7) is not less than 0.2m.

3. A drainage culvert front sewage interception and water guiding device according to claim 2, characterized in that: The spacing between the bars of the pollution interception grid (5) is 10-40 mm, and the width of the formed flow passage is not less than 0.3 m.

4. A drainage culvert front sewage interception and water guiding device according to claim 3, characterized in that: The width of the central water guide groove (6) is the same as the net width of the open drainage ditch (2); a water gap (9) is formed between the front end of the central water guide groove (6) along the drainage direction and the side sewage interception groove (4); the width of the water gap (9) is not less than 0.3m.

5. A drainage culvert front sewage interception and water guiding device according to claim 4, characterized in that: The starting end of the arc-shaped water-guiding area (8) is higher than the bottom of the open drainage ditch (2), and the end is flush with the front end bottom of the drainage culvert (3); the longitudinal slope of the bottom of the arc-shaped water-guiding area (8) is greater than 0.1.

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