Drainage device for highway construction

Abstract

The utility model relates to the technical field of drainage devices, in particular to a drainage device for highway construction, which comprises a drainage well and a well lid, the drainage well is sunk below a highway surface layer, and the drainage well is communicated with a municipal drainage pipe; the well lid covers the top of the drainage well, the top surface of the well lid is flush with or lower than the top surface of the road surface layer, the well lid is provided with a plurality of drainage ports, the top surface of the well lid is provided with concentric-square-shaped protrusions located on the peripheral sides of the drainage ports, and the concentric-square-shaped protrusions form a water inlet channel. The well lid is arranged at the top of the drainage well and provided with a plurality of drainage ports, rainwater enters the drainage well through the drainage ports and then is drained through a municipal drainage pipe, and water accumulation on the road surface is prevented. The concentric-square-shaped protrusion is arranged on the peripheral side of the water outlet, the concentric-square-shaped protrusion forms the water inlet channel on the outer side of the water outlet, and therefore the rainwater entering distance is prolonged, silt can settle in the water inlet channel, and the silt entering amount is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage devices, and more specifically, particularly to a drainage device for highway construction. Background Art

[0002] During highway construction, it is necessary to design highway drainage facilities according to the construction location and average weather conditions. Timely drainage and avoiding road waterlogging are the main tasks of highway construction drainage devices, because road waterlogging will affect the passage of vehicles and personnel and increase the incidence of traffic accidents.

[0003] Existing highway drainage devices, such as patents with publication numbers CN109024145B and CN113622500A, are all equipped with filtering or anti-blocking structures to prevent debris from clogging the pipes during drainage. However, due to long-term use of highways, in addition to debris such as branches, there are more debris such as sand, dust, and pebbles. Such debris is difficult to filter and easy to deposit, which easily causes drainage siltation. Therefore, it is very necessary to provide a drainage device that can remove or reduce the amount of sand and pebbles entering the drainage pipe. Utility Model Content

[0004] The utility model aims to solve the problem that sand, dust, pebbles and other debris are difficult to filter and easily deposited, thus causing drainage obstruction, and aims to provide a drainage device for highway construction that can remove or reduce the entry of sand and pebbles into the drainage pipe.

[0005] A drainage device for highway construction comprises a drainage well and a well cover, wherein the drainage well is sunk below the highway surface and is connected to a municipal drainage pipe; the well cover is arranged on the top of the drainage well, and the top surface of the well cover is flush with or lower than the top surface of the highway surface; the well cover is provided with a plurality of drainage outlets, and a roundabout protrusion is arranged on the top surface of the well cover and around the drainage outlet, and the roundabout protrusion forms a water inlet channel.

[0006] Furthermore, one end of the circular protrusion away from the drain outlet extends to the edge of the top surface of the manhole cover.

[0007] Furthermore, the ends of the plurality of circular protrusions extend to different edges of the top surface of the manhole cover.

[0008] Furthermore, a sedimentation tank is provided at the bottom of the water inlet channel.

[0009] Furthermore, a first filter structure is arranged between the drainage well and the well cover, and the first filter structure includes a first frame and a filter screen arranged in the first frame.

[0010] Furthermore, a second filter structure is arranged between the first filter structure and the drainage well, and the second filter structure includes a second frame and a filter plate arranged in the second frame.

[0011] Furthermore, the middle part of the filter plate is sunken downward to form a sand retention groove, and filtering holes are provided on the side plates of the sand retention groove and the filter plates on both sides of the top of the sand retention groove.

[0012] Furthermore, the filter plate is fixed to the top of the inner side of the second frame, and grooves matching the sand retention groove are provided on both sides of the second frame corresponding to the sand retention groove, and a raised plate matching the groove is provided at the bottom of the first frame.

[0013] Furthermore, the drainage well, the second frame, the first frame and the well cover are all detachably connected.

[0014] Furthermore, the municipal drainage pipe is arranged below the drainage well, and a first connecting pipe connected to the municipal drainage pipe is vertically penetrated through the bottom plate of the drainage well, and the upper end surface of the first connecting pipe is higher than the top surface of the bottom plate of the drainage well; the side plate of the drainage well is penetrated by at least one second connecting pipe connected to the municipal drainage pipe, and the second connecting pipe is higher than the upper end surface of the first connecting pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the drainage device for highway construction of the utility model, a manhole cover is arranged on the top of the drainage well, and a plurality of drainage ports are arranged on the manhole cover. Rainwater enters the drainage well through the drainage ports and is then discharged through the municipal drainage pipe to prevent water accumulation on the road. By arranging a roundabout protrusion around the drainage port, the roundabout protrusion forms a water inlet channel outside the drainage port, thereby extending the distance for rainwater to enter, so that sediment can be settled in the water inlet channel, and the amount of sediment entering can be reduced.

[0017] The highway construction drainage device of the utility model is provided with a sedimentation trough at the bottom of the water inlet channel, the bottom of the trough is lower than the drainage port, and due to the high density of the sediment, the sediment can be partially deposited in the sedimentation trough to avoid entering the drainage port with the water flow.

[0018] The drainage device for highway construction in the utility model is provided with a first filtering structure and a second filtering structure. The filter screen of the first filtering structure can filter debris such as leaves. A downwardly recessed sand retention groove is provided in the middle of the filter plate of the second filtering structure. Due to the large density of the sediment, part of the sediment that has not settled on the manhole cover is deposited at the bottom of the sand retention groove, thereby further reducing the sediment entering the municipal drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of a drainage device for highway construction in an embodiment of the utility model.

[0021] Figure 2 It is an exploded view of the drainage device for highway construction in the embodiment of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the second filtering structure in the embodiment of the utility model.

[0023] Figure 4 It is a schematic diagram of the connection structure of the drainage well and the municipal pipeline in the embodiment of the utility model.

[0024] Figure 5 It is a top view of the use status of the drainage device for highway construction in another embodiment.

[0025] In the figure: 1. drainage well; 2. well cover; 3. drainage outlet; 4. roundabout protrusion; 5. sedimentation tank; 6. first filtering structure; 601. filter screen; 602. upper frame; 603. lower frame; 604. third clamping strip; 605. notch; 7. second filtering structure; 701. second frame; 702. filter plate; 703. sand retention trough; 704. second clamping strip; 8. municipal drainage pipe; 9. first connecting pipe; 10. second connecting pipe; 11. first clamping strip; 12. fourth clamping strip. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1 , Figure 2 As shown, the highway construction drainage device in this embodiment includes a manhole cover 2, a first filter structure 6, a second filter structure 7 and a drainage well 1 arranged in sequence from top to bottom, and a municipal drainage pipe 8 is arranged below the drainage well 1. The manhole cover 2, the first filter structure 6, the second filter structure 7 and the drainage well 1 are all embedded below the road surface.

[0028] In this embodiment, the top surface of the manhole cover 2 is flush with or lower than the top surface of the road surface layer, and a roundabout protrusion 4 is provided on the top surface of the manhole cover 2 and around the drain outlet 3, and the roundabout protrusion 4 forms a water inlet channel. The end of the roundabout protrusion 4 away from the drain outlet 3 extends to the edge of the top surface of the manhole cover 2, and the ends of the multiple roundabout protrusions 4 extend to different edges of the top surface of the manhole cover 2. By providing the roundabout protrusion 4 around the drain outlet 3, the roundabout protrusion 4 forms a water inlet channel outside the drain outlet 3, thereby extending the distance for rainwater to enter, so that sediment can be settled in the water inlet channel, reducing the amount of sediment entering.

[0029] Specifically, the manhole cover 2 is rectangular, and one or two rows of drain ports 3 are provided on the manhole cover 2 along the length direction, and the ends of the circular protrusions 4 located on the peripheral sides of the drain ports 3 at the edge extend to the shorter two side edges of the top surface of the manhole cover 2. When one row of drain ports 3 is provided on the manhole cover 2, the ends of the circular protrusions 4 located on the peripheral sides of the drain ports 3 on the inner side extend to the longer one or two side edges of the top surface of the manhole cover 2. When two rows of drain ports 3 are provided on the manhole cover 2, the ends of the circular protrusions 4 located on the peripheral sides of the drain ports 3 on the inner side extend to the longer two side edges of the top surface of the manhole cover 2.

[0030] In this embodiment, a row of four drain ports 3 are provided on the manhole cover 2, and the ends of the circular protrusions 4 on the sides of the two outermost drain ports 3 extend to different shorter edges respectively, and the ends of the circular protrusions 4 on the sides of the two middle drain ports 3 extend to different longer edges respectively. The manhole cover 2 in this embodiment is suitable for installation on the inner side of a highway because the four water inlet channels are connected to different edges of the top surface of the manhole cover 2. In another embodiment, as Figure 5 As shown, a row of four drain outlets 3 are provided on the manhole cover 2, and the ends of the circular protrusions 4 on the sides of the two outermost drain outlets 3 extend to different shorter edges respectively, and the ends of the circular protrusions 4 on the sides of the two middle drain outlets 3 extend to the same longer edge respectively. Therefore, it is more suitable for installation on the edge of a road, thereby facilitating rainwater to enter the water inlet channel.

[0031] In this embodiment, a sedimentation trough 5 is provided at the bottom of the water inlet channel, and the bottom of the trough is lower than the drain outlet 3. Due to the high density of the silt, the silt can be partially deposited in the sedimentation trough 5 to avoid entering the drain outlet 3 with the water flow.

[0032] In this embodiment, the first filter structure 6 includes a first frame and a filter screen 601 disposed in the first frame. The filter screen 601 is fixed inside the first frame and located in the middle in the vertical direction. Figure 3As shown, the second filtering structure 7 includes a second frame 701 and a filter plate 702 disposed in the second frame 701. The middle of the filter plate 702 is recessed downward to form a sand retention groove 703, and filter holes are provided on the side plates of the sand retention groove 703 and the filter plates 702 on both sides of the top of the sand retention groove 703. The filter plate 702 is fixed to the top of the inner side of the second frame 701, and grooves matching the sand retention groove 703 are provided on both sides of the second frame 701 corresponding to the sand retention groove 703, and a raised plate matching the groove is provided at the bottom of the first frame. The aperture of the filter screen 601 is larger than the aperture of the filter hole.

[0033] In this embodiment, the drainage well 1, the second frame 701, the first frame and the well cover 2 can be detachably connected. Specifically, the top surface of the side wall of the drainage well 1, the top surface of the second frame 701 and the top surface of the first frame are respectively provided with annular first clip strip 11 and second clip strip 704. Correspondingly, the bottom surface of the second frame 701 and the first frame are provided with first clip slot and second clip slot respectively matched with the first clip strip 11 and the second clip slot. The second frame 701 is connected to the drainage well 1 through the first clip strip 11 and the first clip slot, and the first frame is connected to the second frame 701 through the second clip strip 704 and the second clip slot.

[0034] In this embodiment, the first frame is composed of an upper frame 602 and a lower frame 603, the filter 601 is fixed to the inner top of the lower frame 603, a third annular clip 604 is fixed to the top surface of the lower frame 603, and a third clip groove adapted to the third clip 604 is fixed to the bottom of the upper frame 602, so that the upper frame 602 and the lower frame 603 can be snapped. A notch 605 is provided on the inner side of the top surface of the upper frame 602, and a fourth clip 12 adapted to the notch 605 is fixed to the bottom surface of the manhole cover 2, so that the manhole cover 2 is snapped with the upper frame 602. The drainage well 1, the second frame 701, the first frame and the manhole cover 2 can be detachably connected, so that the manhole cover 2, the filter 601 and the filter plate 702 can be easily cleaned.

[0035] In this embodiment, if Figure 4 As shown, the municipal drainage pipe 8 is arranged below the drainage well 1, and a first connecting pipe 9 connected to the municipal drainage pipe 8 is vertically penetrated through the bottom plate of the drainage well 1, and the upper end surface of the first connecting pipe 9 is higher than the top surface of the bottom plate of the drainage well 1. At least one second connecting pipe 10 connected to the municipal drainage pipe 8 is penetrated through the side plate of the drainage well 1, and the second connecting pipe 10 is higher than the upper end surface of the first connecting pipe 9.

[0036] Due to the high density of sediment, sediment entering the drainage well 1 will settle at the bottom of the well. By setting the upper end surface of the first connecting pipe 9 higher than the top surface of the bottom plate of the drainage well 1, it is also possible to prevent sediment at the bottom of the well from entering the first connecting pipe 9 to a certain extent. By setting the second connecting pipe 10, the drainage pressure of the first connecting pipe 9 is reduced when there is a large amount of water, thereby avoiding waterlogging on the road.

[0037] The working principle of the highway construction drainage device in this embodiment is:

[0038] A manhole cover 2 is provided on the top of the drainage well 1, and a plurality of drainage ports 3 are provided on the manhole cover 2. Rainwater enters the drainage well 1 through the drainage ports 3, and is then discharged through the municipal drainage pipe 8 to prevent water accumulation on the road. By providing a roundabout protrusion 4 around the drainage port 3, the roundabout protrusion 4 forms a water inlet channel outside the drainage port 3, thereby extending the distance for rainwater to enter, so that the silt can be settled in the water inlet channel and the amount of silt entering can be reduced. By providing a sedimentation trough 5 at the bottom of the water inlet channel, the bottom of the trough is lower than the drainage port 3, and due to the high density of the silt, the silt can be partially deposited in the sedimentation trough 5, avoiding all of it from entering the drainage port 3 with the water flow.

[0039] By setting the first filter structure 6 and the second filter structure 7, the filter 601 of the first filter structure 6 can filter debris such as leaves, and by setting a downwardly recessed sand retention groove 703 in the middle of the filter plate 702 of the second filter structure 7, due to the high density of the sediment, part of the sediment that has not settled on the manhole cover 2 is deposited at the bottom of the sand retention groove 703, thereby further reducing the sediment entering the municipal drainage pipe 8.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A drainage device for highway construction, characterized in that: The invention comprises a drainage well (1) and a well cover (2), wherein the drainage well (1) is embedded below the road surface layer, and the drainage well (1) is connected to a municipal drainage pipe (8); the well cover (2) is arranged on the top of the drainage well (1), and the top surface of the well cover (2) is flush with or lower than the top surface of the road surface layer, the well cover (2) is provided with a plurality of drainage openings (3), and a circular protrusion (4) is arranged on the top surface of the well cover (2) and on the periphery of the drainage opening (3), and the circular protrusion (4) forms a water inlet channel.

2. The drainage device for highway construction according to claim 1, characterized in that: One end of the circular protrusion (4) away from the drain outlet (3) extends to the edge of the top surface of the manhole cover (2).

3. The drainage device for highway construction according to claim 2, characterized in that: The ends of the plurality of circular protrusions (4) extend to different edges of the top surface of the manhole cover (2).

4. The drainage device for highway construction according to claim 3, characterized in that: A sedimentation tank (5) is arranged at the bottom of the water inlet channel.

5. The drainage device for highway construction according to claim 4, characterized in that: A first filtering structure (6) is arranged between the drainage well (1) and the well cover (2), and the first filtering structure (6) comprises a first frame and a filter screen (601) arranged in the first frame.

6. The drainage device for highway construction according to claim 5, characterized in that: A second filter structure (7) is arranged between the first filter structure (6) and the drainage well (1), and the second filter structure (7) comprises a second frame (701) and a filter plate (702) arranged in the second frame (701).

7. The drainage device for highway construction according to claim 6, characterized in that: The middle part of the filter plate (702) is sunken downward to form a sand retention groove (703), and filtering holes are provided on the side plates of the sand retention groove (703) and the filter plate (702) on both sides of the top of the sand retention groove (703).

8. The drainage device for highway construction according to claim 7, characterized in that: The filter plate (702) is fixed to the inner top of the second frame (701), and grooves matching the sand retention groove (703) are provided on both sides of the second frame (701) corresponding to the sand retention groove (703), and a raised plate matching the groove is provided at the bottom of the first frame.

9. The drainage device for highway construction according to claim 8, characterized in that: The drainage well (1), the second frame (701), the first frame and the well cover (2) are all detachably connected.

10. The drainage device for highway construction according to claim 9, characterized in that: The municipal drainage pipe (8) is arranged below the drainage well (1); a first connecting pipe (9) connected to the municipal drainage pipe (8) is vertically penetrated through the bottom plate of the drainage well (1); the upper end surface of the first connecting pipe (9) is higher than the top surface of the bottom plate of the drainage well (1); at least one second connecting pipe (10) connected to the municipal drainage pipe (8) is penetrated through the side plate of the drainage well (1); the second connecting pipe (10) is higher than the upper end surface of the first connecting pipe (9).

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