Inverted siphon water diversion passing structure

Abstract

The utility model discloses an inverted siphon water diversion passing structure which comprises an upstream vertical shaft and a downstream vertical shaft which are arranged on the two sides of a road respectively, a duct for communicating the upstream vertical shaft with the downstream vertical shaft is arranged below the road, the top of the upstream vertical shaft is communicated with an upstream water channel, and the top of the downstream vertical shaft is communicated with a downstream water channel; the sand discharging device is arranged in the duct, the duct is in a horizontally-arranged cylindrical shape, the sand discharging device comprises a rotating shaft rotationally connected into the duct and a spiral band fixedly arranged outside the rotating shaft, the outer side of the spiral band is close to the inner wall of the duct, and the rotating shaft is coaxial with the duct. The spiral belt is impacted by water flow, so that the spiral belt rotates around the rotating shaft, silt on the inner wall of the duct is driven to enter a downstream vertical shaft, silting of the silt in the duct is reduced, and the water flow in the duct is smooth.

Description

Technical Field

[0001] The utility model relates to the technical field of water diversion projects, in particular to an inverted siphon water diversion structure for crossing a road. Background Art

[0002] During the process of water diversion in a water channel, it is sometimes necessary to cross a road. In this case, vertical shafts need to be drilled on both sides of the road respectively, and then the two vertical shafts are connected by a culvert passing under the road to form an inverted siphon structure, so as to realize the crossing of the water channel.

[0003] Since there is sediment in the water, it will settle in the vertical shafts and culverts. The sediment in the vertical shafts can be cleaned regularly, while the sediment deposited in the culvert is not convenient to clean. When the water flows through the culvert, the sediment will accumulate more and more at the bottom of the inner wall of the culvert, forming a thick layer, reducing the flow area of the culvert, and thus affecting the water diversion flow rate. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an inverted siphon water diversion structure for crossing a road, which is used to solve the problem that when the existing inverted siphon structure is used to divert water through a road, sediment is likely to accumulate in the culvert, affecting the water diversion flow rate.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is as follows:

[0006] An inverted siphon water diversion structure for crossing a road includes an upstream vertical shaft and a downstream vertical shaft respectively arranged on both sides of the road. A culvert connecting the upstream vertical shaft and the downstream vertical shaft is provided under the road. The top of the upstream vertical shaft is connected to an upstream water channel, and the top of the downstream vertical shaft is connected to a downstream water channel. A sand discharging device is arranged in the culvert. The culvert is a horizontally arranged cylindrical shape. The sand discharging device includes a rotating shaft rotatably connected in the culvert and a spiral belt fixedly arranged outside the rotating shaft. The outer side of the spiral belt is close to the inner wall of the culvert, and the rotating shaft is coaxial with the culvert.

[0007] Further, a connecting plate is arranged between the spiral belt and the rotating shaft, and both the spiral belt and the rotating shaft are fixedly connected to the connecting plate.

[0008] Further, the connecting plate is inclined. When the water flow passing through the culvert impacts on the connecting plate, the torque acting on the rotating shaft is M, and when the water flow passing through the culvert impacts on the spiral belt, the torque acting on the rotating shaft is N, then the directions of M and N are the same.

[0009] Further, a window is opened at the top of the upstream vertical shaft, and this window connects the upstream vertical shaft with the upstream water channel, and an upstream trash rack is arranged on this window.

[0010] Further, a window is opened at the top of the downstream vertical shaft, and this window connects the downstream vertical shaft with the downstream water channel, and a downstream trash rack is arranged on this window.

[0011] Furthermore, the bottom of the upstream shaft is an upstream sedimentation pit lower than the culvert, and the bottom of the downstream shaft is a downstream sedimentation pit lower than the culvert. A submersible sediment drainage pump is provided at the bottom of the upstream sedimentation pit and / or the downstream sedimentation pit.

[0012] Furthermore, a water spray pipe is provided around the water inlet of the submersible sediment drainage pump, and the water spray pipe is connected to a water jet pump.

[0013] Furthermore, the bottom of the upstream sedimentation pit and / or the downstream sedimentation pit is funnel-shaped.

[0014] The positive effects of the present utility model are as follows:

[0015] 1. The present utility model is provided with an upstream shaft, a downstream shaft and a culvert. A sediment drainage device is provided in the culvert. The sediment drainage device includes a spiral belt and a rotating shaft. The water flow impacts the spiral belt, causing the spiral belt to rotate around the rotating shaft, thereby driving the sediment on the inner wall of the culvert into the downstream shaft, thus reducing the sediment accumulation in the culvert and making the water flow in the culvert smooth.

[0016] 2. The spiral belt and the rotating shaft are connected by an inclined connecting plate, and the inclined connecting plate forms a propeller shape, thereby making the torque acting on the rotating shaft larger, making the spiral belt easier to rotate, and at the same time stirring the water flow in the culvert, making it more difficult for sediment to accumulate in the culvert. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of Embodiments 1 and 2;

[0018] Figure 2 is a schematic structural diagram of the sediment drainage device in Embodiments 1 and 2;

[0019] Figure 3 is an enlarged view of the upstream sedimentation pit in Embodiment 3;

[0020] 1. Upstream water channel; 2. Upstream trash rack; 3. Lift pipe; 4. Cover plate; 5. Upstream shaft; 6. Road; 7. Downstream shaft; 8. Downstream trash rack; 9. Downstream water channel; 10. Submersible sediment drainage pump; 11. Sediment drainage device; 12. Culvert; 13. Spiral belt; 14. Connecting plate; 15. Rotating shaft; 16. Water spray pipe; 17. Upstream sedimentation pit; 18. Downstream sedimentation pit; 19. Water jet pipe. Detailed Embodiments

[0021] Embodiment 1

[0022] As Figure 1 and Figure 2As shown in the figure, an inverted siphon water passing structure includes an upstream shaft 5 and a downstream shaft 7 respectively arranged on both sides of a road. A culvert 12 that connects the lower part of the upstream shaft 5 and the lower part of the downstream shaft 7 is provided under the road 6. The top of the upstream shaft 5 is connected to an upstream water channel 1, and the top of the downstream shaft 7 is connected to a downstream water channel 9. The top surfaces of the upstream shaft 5 and the downstream shaft 7 are both covered with cover plates 4. A sand discharging device 11 is provided in the culvert 12, and the culvert 12 is a horizontally arranged cylindrical shape.

[0023] The sand discharging device 11 includes a rotating shaft 15 rotatably connected in the culvert 12 and a spiral belt 13 fixedly arranged outside the rotating shaft 15. A connecting plate 14 perpendicular to the rotating shaft is provided between the spiral belt 13 and the rotating shaft 15, and both the spiral belt 13 and the rotating shaft 15 are fixedly connected to the connecting plate 14. The outer side of the spiral belt 13 is close to the inner wall of the culvert 12, and the rotating shaft 15 is coaxial with the culvert 12.

[0024] A window is opened at the top of the upstream shaft 5, and this window connects the upstream shaft 5 with the upstream water channel 1. An upstream trash rack 2 is provided on this window. A window is opened at the top of the downstream shaft 7, and this window connects the downstream shaft 7 with the downstream water channel 9. A downstream trash rack 8 is provided on this window.

[0025] Support plates are fixedly arranged on the side walls of the culvert 12 near both ends. The two ends of the rotating shaft 15 are respectively rotatably connected to the corresponding support plates. When the culvert 12 is relatively long, multiple sand discharging devices 11 can be arranged along the axial direction of the culvert 12.

[0026] Figure 1 The direction of the arrow in the figure is the water flow direction. When the water flows from the upstream water channel 1 into the upstream shaft 5 from left to right and then flows through the culvert 12 from left to right into the downstream shaft 7, under the impact of the water flow, the spiral belt 13 drives the rotating shaft 15 to rotate. The spiral belt 13 will push the sediment at the bottom of the culvert 12 to flow to the right until it enters the downstream shaft 7. Or the spiral belt 13 stirs up the sediment at the bottom of the culvert 12 and then moves a certain distance to the right with the water flow and then falls. This process is repeated until it enters the downstream shaft 7, thereby reducing the sediment deposition in the culvert 12 and making the water flow in the culvert 12 smooth.

[0027] The bottom of the upstream shaft 5 is an upstream sedimentation pit 17 lower than the culvert 12, and the bottom of the downstream shaft 7 is a downstream sedimentation pit 18 lower than the culvert 12. Submersible sand pumps 10 are provided at the bottoms of the upstream sedimentation pit 17 and the downstream sedimentation pit 18. When the submersible sand pumps 10 are operating, the sediment at the bottoms of the upstream sedimentation pit 17 and the downstream sedimentation pit 18 can be discharged through a lift pipe 3 passing through the cover plate 4.

[0028] The bottoms of the upstream sand-settling pit 17 and the downstream sand-settling pit 18 are both funnel-shaped, and the sediment at the bottoms of the upstream sand-settling pit 17 and the downstream sand-settling pit 18 converges at the inlet at the lower end of the submersible sand-exhaust pump 10.

[0029] Embodiment 2

[0030] The difference between this embodiment and Embodiment 1 lies in that:

[0031] The connecting plate 14 is inclined. When the water flow flowing through the culvert 12 impacts on the connecting plate 14, the torque acting on the rotating shaft 15 is M, and when the water flow flowing through the culvert 12 impacts on the spiral belt 13, the torque acting on the rotating shaft 15 is N, and the directions of M and N are the same.

[0032] The inclined connecting plate 14 forms a propeller shape, so that the rotational torque acting on the rotating shaft 15 is greater, making the spiral belt 13 easier to rotate and making it less likely for sediment to accumulate in the culvert 12.

[0033] Embodiment 3

[0034] As Figure 3 shown, the difference between this embodiment and Embodiment 1 lies in that:

[0035] An annular water spray pipe 16 is provided around the water inlet of the submersible sand-exhaust pump 10. The water spray pipe 16 is sleeved outside the submersible sand-exhaust pump 10 and fixedly connected to the submersible sand-exhaust pump 10. Spray holes are provided on the water spray pipe 16 facing the water suction port of the submersible sand-exhaust pump 10. Flushing water pumps connected to the corresponding water spray pipes 16 are provided outside both the upstream vertical shaft 5 and the downstream vertical shaft 18. Before the submersible sand-exhaust pump 10 operates, the flushing water pumps are started first, and the water spray pipe sprays high-pressure water flow towards the water suction port of the submersible sand-exhaust pump 10 to disperse the sediment around the water suction port of the submersible sand-exhaust pump 10, thereby preventing the submersible sand-exhaust pump 10 from being unable to operate due to the blockage of the water suction port by sediment.

[0036] The above-described embodiments are described in detail and specifically, expressing the preferred embodiments of the present utility model. They are only used to illustrate the technical ideas and features of the present utility model. The purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly. However, it is not limited to the present utility model alone. The patent scope of the present utility model cannot be limited only by this embodiment. That is, any equivalent changes or modifications made in accordance with the spirit disclosed by the present utility model, for researchers or technicians in the field, within the structure of the present utility model, local improvements within the system and changes and transformations between subsystems are still within the patent scope of the present utility model. At present, the technical solution of this application has been pilot-tested, that is, small-scale experiments before large-scale production of the product; after the pilot test, user usage research has been carried out on a small scale, and the research results show that user satisfaction is relatively high; now preparations are underway for the formal production and industrialization of the product, including research on intellectual property risk early warning.

Claims

1. An inverted siphon water passage structure, characterized in that: The invention comprises an upstream shaft (5) and a downstream shaft (7) respectively arranged on both sides of a road (6); a culvert (12) is arranged under the road (6) to connect the upstream shaft (5) and the downstream shaft (7); the top of the upstream shaft (5) is connected to an upstream water channel (1); the top of the downstream shaft (7) is connected to a downstream water channel (9); a sand discharge device (11) is arranged in the culvert (12); the culvert (12) is a horizontally arranged cylindrical shape; the sand discharge device (11) comprises a rotating shaft (15) rotatably connected in the culvert (12) and a spiral belt (13) fixedly arranged outside the rotating shaft (15); the outer side of the spiral belt (13) is close to the inner wall of the culvert (12); the rotating shaft (15) is coaxial with the culvert (12).

2. The inverted siphon water passage structure according to claim 1, characterized in that: A connecting plate (14) is provided between the spiral belt (13) and the rotating shaft (15), and the spiral belt (13) and the rotating shaft (15) are both fixedly connected to the connecting plate (14).

3. The inverted siphon water passage structure according to claim 2, characterized in that: The connecting plate (14) is arranged to be inclined. When the water flowing through the duct (12) impacts the connecting plate (14), the torque acting on the rotating shaft (15) is M. When the water flowing through the duct (12) impacts the spiral belt (13), the torque acting on the rotating shaft (15) is N. Then, the directions of M and N are consistent.

4. The inverted siphon water passage structure according to claim 1, characterized in that: A window is provided at the top of the upstream vertical shaft (5), which connects the upstream vertical shaft (5) with the upstream water channel (1), and an upstream trash rack (2) is provided on the window.

5. The inverted siphon water passage structure according to claim 1, characterized in that: A window is provided at the top of the downstream vertical shaft (7), which connects the downstream vertical shaft (7) with the downstream water channel (9), and a downstream trash rack (8) is provided on the window.

6. The inverted siphon water passage structure according to claim 1, characterized in that: The bottom of the upstream vertical shaft (5) is an upstream sedimentation pit (17) lower than the duct (12), and the bottom of the downstream vertical shaft (7) is a downstream sedimentation pit (18) lower than the duct (12). A submersible sediment removal pump (10) is provided at the bottom of the upstream sedimentation pit (17) and / or the downstream sedimentation pit (18).

7. The inverted siphon water passage structure according to claim 6, characterized in that: A water spray pipe (16) is arranged around the water inlet of the submersible sand removal pump (10), and the water spray pipe (16) is connected to a flushing pump.

8. The inverted siphon water passage structure according to claim 6, characterized in that: The bottom of the upstream sedimentation pit (17) and / or the downstream sedimentation pit (18) are both funnel-shaped.

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