Water seepage filtering structure for sponge city

Abstract

The utility model discloses a sponge city water seepage filtering structure which comprises a road, a green belt and a sewer line, a planting soil layer is arranged on the lower surface of the green belt, a sand layer is arranged at the bottom of the planting soil layer, a gravel layer is arranged at the bottom of the sand layer, and a rainwater grate is arranged at the top end of the sewer line. According to the sponge city water seepage filtering structure, the road, the green belt, the planting soil layer, the sand layer, the gravel layer, the sewer line, the rainwater grate, a pull ring, a positioning rod, a spring, a fixing groove, a sliding block, a transverse rod, a sliding hole and a positioning groove are used in cooperation, and the rainwater grate and an upper end opening of the sewer line are elastically clamped through the positioning rod and the positioning groove; the rainwater grate is firmly fixed at the upper end opening of the sewer line, even if the rainfall is large, the rainwater grate can bear a large test, the rainwater grate is firmly matched with the sewer line for use, and the stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of sponge cities, in particular to a sponge city water seepage filtering structure. Background Art

[0002] Sponge city is a new generation of urban stormwater management concept. It means that the city can adapt to environmental changes and cope with natural disasters caused by rainwater like a sponge, with good elasticity. It can also be called a "water-elastic city". The city can adapt to environmental changes and cope with natural disasters like a sponge. The internationally common term is "low-impact development rainwater system construction". It absorbs, stores, infiltrates and purifies water when it rains. When needed, the stored water will be released and utilized to achieve the free migration of rainwater in the city.

[0003] However, the traditional sponge city water seepage filtration structure currently on the market does not have any connection structure between the rainwater grate and the sewer pipe, and is directly placed at the port of the sewer pipe. Once the rainfall is heavy, the speed of rainwater accumulation is much greater than the water seepage speed of the urban sponge body, and water will quickly accumulate on the upper surface of the sponge body and then be discharged into the sewer pipe. As the water level on the upper surface of the sponge body increases, it will directly cover the rainwater grate, causing the rainwater grate to shift directly under the action of water scouring and water buoyancy, thereby failing to perform preliminary filtration on the rainwater entering the sewer pipe, which is very likely to cause blockage of the sewer pipe and has low stability. Utility Model Content

[0004] The purpose of the utility model is to provide a sponge city water seepage filtration structure to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sponge city water seepage filtration structure comprises a road, a green belt and a sewer pipe, wherein a planting soil layer is arranged on the lower surface of the green belt, a sand layer is arranged at the bottom of the planting soil layer, a gravel layer is arranged at the bottom of the sand layer, a rain grate is arranged at the top of the sewer pipe, symmetrically distributed sliding holes are arranged on the outer wall of the upper port of the sewer pipe, a fixing groove is arranged on the inner wall of the sliding hole, a cross bar is fixedly installed inside the fixing groove, a sliding block is sleeved on the outer wall of the cross bar, a spring is sleeved on the outer wall of the cross bar on one side of the sliding block, a positioning rod is fixedly installed on the top of the sliding block, a pull ring is fixedly installed on one end of the positioning rod, and a positioning groove corresponding to the position and number of the positioning rod is arranged at the connection between the rain grate and the sewer pipe.

[0007] As a further solution of the utility model: an installation annular plate is provided inside the upper port of the sewer pipe, and a filter screen is fixedly installed on the bottom of the installation annular plate.

[0008] As a further solution of the utility model: half rings are fixedly installed on both sides of the top of the mounting annular plate.

[0009] As a further solution of the utility model: a sliding hole matched with the cross bar is opened on one side of the sliding block, and the sliding block is slidably connected with the cross bar through the sliding hole opened on one side of the sliding block.

[0010] As a further solution of the utility model: an electroplating layer is provided on the outer wall of the spring.

[0011] As a further solution of the utility model: the shape of the filter screen is an arc-shaped hollow hemispherical body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This utility model is used in combination with roads, green belts, planting soil layers, sand layers, gravel layers, sewer pipes, rainwater grates, pull rings, positioning rods, springs, fixing grooves, sliders, cross bars, sliding holes and positioning grooves. The rainwater grate and the upper port of the sewer pipe are elastically connected by the positioning rod and the positioning groove, so that the rainwater grate is firmly fixed at the upper port of the sewer pipe. Even if the rainfall is heavy, the rainwater grate is enough to withstand a greater test and is firmly used in combination with the sewer pipe. It has high stability, ensuring the operational stability of the entire sponge city system. At the same time, when When the rainwater grate needs to be disassembled, just pull the pull ring. The movement of the pull ring drives the positioning rod to slide on the sliding hole. The movement of the positioning rod will drive the sliding block to slide on the outer wall of the cross bar and squeeze the spring. As the positioning rod moves, the positioning rod will be separated from the inside of the positioning groove on the rainwater grate. At this time, the rainwater grate will lose the limiting effect of the positioning rod, and the rainwater grate can be directly disassembled from the upper port of the sewer pipe. Therefore, the connection structure between the rainwater grate and the sewer pipe is simple and easy to operate, and it does not affect the rapid assembly and disassembly of the rainwater grate, and it is highly practical.

[0014] 2. The utility model is used by installing the annular plate, the half ring and the filter net in coordination. After the rainwater enters the interior of the sewer pipe through the rainwater grate, the rainwater will pass through the interior of the filter net. The filter net will further filter the incoming rainwater and filter out some smaller impurities in the rainwater. The filter net adopts an arc-shaped hollow hemispherical design. The impurities filtered out are mainly concentrated in the center of the filter net. As long as the interior of the filter net is not filled with impurities, the filter net will not be blocked and will always have permeability. The rainwater is filtered again by the filter net, which is convenient for the subsequent treatment of the rainwater. The filter net is placed directly inside the upper port of the sewer pipe by installing the annular plate and can be easily taken out through the half ring. Therefore, it is also very simple to clean the impurities filtered out from the inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a sponge city water seepage filtration structure;

[0016] Figure 2 A schematic diagram of the structure of installing an annular plate and a filter net in a sponge city water seepage filtration structure;

[0017] Figure 3 It is a sponge city water seepage filtration structure. Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 4 It is a sponge city water seepage filtration structure. Figure 3 Enlarged structural diagram at B in the middle.

[0019] In the figure: road 1, green belt 2, planting soil layer 3, sand layer 4, gravel layer 5, sewer pipe 6, mounting ring plate 7, half ring 8, filter screen 9, rainwater grate 10, pull ring 11, positioning rod 12, spring 13, fixing groove 14, slider 15, cross bar 16, sliding hole 17, positioning groove 18. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 4In the embodiment of the utility model, a sponge city water seepage filtration structure includes a road 1, a green belt 2 and a sewer pipe 6. A planting soil layer 3 is arranged on the lower surface of the green belt 2, a sand layer 4 is arranged at the bottom of the planting soil layer 3, a gravel layer 5 is arranged at the bottom of the sand layer 4, a rainwater grate 10 is arranged at the top of the sewer pipe 6, and symmetrically distributed sliding holes 17 are opened on the outer wall of the upper port of the sewer pipe 6, a fixing groove 14 is opened on the inner wall of the sliding hole 17, and a cross bar 16 is fixedly installed inside the fixing groove 14. A slider 15 is sleeved on the outer wall of the cross bar 16, and the slider 15 is slidably connected to the fixed groove 14. A spring 13 is sleeved on the outer wall of the cross bar 16 on one side of the slider 15. A positioning rod 12 is fixedly installed on the top of the slider 15, and the positioning rod 12 is slidably connected to the sliding hole 17. A pull ring 11 is fixedly installed on one end of the positioning rod 12. A positioning groove 18 corresponding to the position and number of the positioning rod 12 is opened at the connection between the rain grate 10 and the sewer pipe 6, and the positioning groove 18 is clamped with the positioning rod 12.

[0022] Reference Figure 2 and Figure 3 In the present application, an annular plate 7 is provided inside the upper port of the sewer pipe 6, and a filter screen 9 is fixedly installed at the bottom of the annular plate 7.

[0023] Reference Figure 2 and Figure 3 In the present application, half rings 8 are fixedly mounted on both sides of the top of the annular plate 7 .

[0024] Reference Figure 4 In the present application, a sliding hole adapted to the cross bar 16 is provided on one side of the slider 15, and the slider 15 is slidably connected to the cross bar 16 through the sliding hole provided on one side thereof.

[0025] Reference Figure 4 In the present application, an electroplating layer is provided on the outer wall of the spring 13 to improve the corrosion resistance of the spring 13 and make it more durable.

[0026] Reference Figure 2 In the present application, the shape of the filter screen 9 is an arc-shaped hollow hemispherical body.

[0027] The working principle of the utility model is:

[0028] Reference Figures 1 to 4When in use, the sponge city structure is mainly used in the green belt beside the road. The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. When it rains, rainwater falls on the upper surface of the road 1, and then flows into the sunken green belt 2 under the isolation belt through the road edge gap on the side of the road 1, and then directly penetrates into the sponge body composed of the planting soil layer 3, the sand layer 4 and the gravel layer 5. The groundwater is replenished first through the sponge body, and the excess rainwater will be on the surface of the green belt 2 through the sewer pipe 6 The upper port of the sewer pipe 6 flows into the interior of the sewer pipe 6, where the upper port of the sewer pipe 6 is higher than the green belt 2. After the excess rainwater enters the interior of the sewer pipe 6, under the guidance of the sewer pipe 6, most of it flows into the nearby fast-seepage well, and the remaining part flows into the regulating reservoir, forming a complete road sponge city complex. When the rainwater enters the interior of the sewer pipe 6 through the rainwater grate 10, the rainwater grate 10 will filter some larger impurities in the rainwater to prevent it from flowing into the interior of the sewer pipe 6. At the same time, the rainwater grate The positioning rod 12 and the positioning groove 18 are elastically connected between the rainwater grate 10 and the upper end of the sewer pipe 6, so that the rainwater grate 10 is firmly fixed at the upper end of the sewer pipe 6. Even if the rainfall is large, the rainwater grate 10 is sufficient to withstand a large test and is firmly used with the sewer pipe 6. The stability is high, ensuring the operation stability of the entire sponge city system. At the same time, when the rainwater grate 10 needs to be disassembled, only the pull ring 11 needs to be pulled, and the movement of the pull ring 11 drives the positioning rod 12 to move on the sliding hole 17. Sliding, the movement of the positioning rod 12 will drive the slider 15 to slide on the outer wall of the cross rod 16 and squeeze the spring 13. As the positioning rod 12 moves, the positioning rod 12 will be separated from the interior of the positioning groove 18 on the rain grate 10. At this time, the rain grate 10 will lose the limiting effect of the positioning rod 12, and the rain grate 10 can be directly removed from the upper port of the sewer pipe 6. Therefore, the connection structure between the rain grate 10 and the sewer pipe 6 is simple and easy to operate, without affecting the rapid assembly and disassembly of the rain grate 10, and has high practicality.

[0029] Reference Figure 1 , Figure 2 and Figure 3When in use, after the rainwater enters the interior of the sewer pipe 6 through the rainwater grate 10, the rainwater will pass through the interior of the filter screen 9, and the filter screen 9 will further filter the incoming rainwater and filter out some smaller impurities in the rainwater. The filter screen 9 adopts an arc-shaped hollow hemispherical design, and the filtered impurities are mainly concentrated in the center of the filter screen 9. As long as the interior of the filter screen 9 is not filled with impurities, the filter screen 9 will not be blocked and will always have permeability. The re-filtration of the rainwater by the filter screen 9 is also convenient for the subsequent treatment of the rainwater, and the filter screen 9 is directly placed inside the upper port of the sewer pipe 6 by installing the annular plate 7, and can be easily taken out through the semi-ring 8, so it is also very simple to clean the impurities filtered out inside it.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sponge city water seepage filtration structure, comprising a road (1), a green belt (2) and a sewer pipe (6), characterized in that: The lower surface of the green belt (2) is provided with a planting soil layer (3), the bottom of the planting soil layer (3) is provided with a sand layer (4), the bottom of the sand layer (4) is provided with a gravel layer (5), the top of the sewer pipe (6) is provided with a rainwater grate (10), the outer wall of the upper end of the sewer pipe (6) is provided with symmetrically distributed sliding holes (17), the inner wall of the sliding hole (17) is provided with a fixing groove (14), and the interior of the fixing groove (14) is fixedly installed with A cross bar (16), a slider (15) is sleeved on the outer wall of the cross bar (16), a spring (13) is sleeved on the outer wall of the cross bar (16) on one side of the slider (15), a positioning rod (12) is fixedly mounted on the top of the slider (15), a pull ring (11) is fixedly mounted on one end of the positioning rod (12), and a positioning groove (18) corresponding to the position and number of the positioning rod (12) is provided at the connection between the rain grate (10) and the sewer pipe (6).

2. A sponge city water seepage filtration structure according to claim 1, characterized in that: An annular mounting plate (7) is provided inside the upper port of the sewer pipe (6), and a filter screen (9) is fixedly mounted on the bottom of the annular mounting plate (7).

3. A sponge city water seepage filtration structure according to claim 2, characterized in that: Half rings (8) are fixedly mounted on both sides of the top of the mounting annular plate (7).

4. The sponge city water seepage filtration structure according to claim 1, characterized in that: A sliding hole matched with the cross bar (16) is provided on one side of the sliding block (15), and the sliding block (15) is slidably connected to the cross bar (16) via the sliding hole provided on one side of the sliding block (15).

5. The sponge city water seepage filtration structure according to claim 1, characterized in that: An electroplating layer is provided on the outer wall of the spring (13).

6. A sponge city water seepage filtration structure according to claim 2, characterized in that: The filter screen (9) is in the shape of an arc-shaped hollow hemisphere.

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