A sponge city environmentally friendly rainwater outlet

Abstract

The utility model discloses a sponge city environmental protection rainwater outlet, comprising a well body, a cover body and a downspout, wherein a pre-storage tank and a drainage tank are arranged at intervals up and down in the well body, a partition is arranged between the pre-storage tank and the drainage tank, an overflow port is arranged at the upper end of the partition, the downspout is arranged in the pre-storage tank, an initial rainwater pipe, a mixed water main pipe and a rainwater pipe are connected to the well body, the initial rainwater pipe is connected to the pre-storage tank, the mixed water main pipe and the rainwater pipe are connected to the drainage tank, the initial rainwater pipe is connected to the pre-storage tank and the mixed water main pipe, the connection position of the rainwater pipe and the well body is located directly below the overflow port and is provided with a filtering structure, a floating block and a sliding door are arranged in the pre-storage tank, the sliding door is slidably connected to the well body up and down, and a transmission rod is connected to the sliding door. The utility model can realize the external discharge structure of the initial rainwater through a mechanical structure, which is relatively simple and convenient for maintenance and repair.

Description

Technical Field

[0001] The utility model relates to the technical field of sponge cities, in particular to an environmentally friendly rainwater outlet for sponge cities. Background Art

[0002] When it rains, a large amount of pollutants on roofs and roads are washed away by rainwater and flow through urban drainage pipes or overflow into receiving water bodies such as rivers and lakes. At the same time, pollutants in the atmosphere are washed away by rain, causing a sharp increase in chemical substances such as sulfide in the initial rainwater, forming typical urban rainfall runoff pollution, which has an impact on the urban ecological environment and seriously restricts the improvement of urban water environment quality. As a surface pollution source, rainwater surface runoff has the uncertainty of pollution source types and sources. Pollutants often come from a large area, are highly impactful, and have complex pollution components. Pollution sources and pollution components are difficult to monitor and complex to calculate quantitatively. These characteristics determine that its control will be quite complicated.

[0003] In the prior art, the initial discharge of rainwater is usually carried out by switching the flow path using an electric mechanical structure, but this device requires regular maintenance and has low reliability, which increases the cost of use. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] The utility model aims to solve the technical problems existing in the prior art and to provide a sponge city environmentally friendly rainwater outlet, which can achieve the initial rainwater discharge structure through a mechanical structure, and has a relatively simple structure and is easy to maintain and overhaul.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the technical solution provided by the utility model is:

[0008] A sponge city environmentally friendly rainwater outlet comprises a well body, a cover body and a downpipe, wherein a pre-storage tank and a drainage tank are arranged at intervals in the well body from top to bottom, a partition is arranged between the pre-storage tank and the drainage tank, an overflow port is arranged at the upper end of the partition, the downpipe is arranged in the pre-storage tank, an initial rainwater pipe, a mixed water main pipe and a rainwater pipe are connected to the well body, the initial rainwater pipe is connected to the pre-storage tank, the mixed water main pipe and the rainwater pipe are connected to the drainage tank, the initial rainwater pipe is connected to the pre-storage tank and the mixed water main pipe, the connection position of the rainwater pipe and the well body is located directly below the overflow port and is provided with a filtering structure, a floating block and a sliding door for opening and closing the initial rainwater pipe are provided in the pre-storage tank, the sliding door is slidably connected to the well body up and down, a transmission rod is connected to the sliding door, and the transmission rod is located directly above the floating block.

[0009] Optionally, the middle portion of the transmission rod is rotatably connected to the well body via a fixed axis, one end of the transmission rod is located directly above the floating block, and the other end of the transmission rod is rotatably connected to the sliding door.

[0010] Optionally, a counterweight structure is provided on one end of the transmission rod away from the transmission rod.

[0011] Optionally, the floating block is slidably sleeved on the downpipe.

[0012] Optionally, a limiting portion is provided at the lower end of the downpipe, and the limiting portion is protruding from the outer peripheral wall of the downpipe.

[0013] Optionally, the filtering structure includes a baffle and a filter net, the baffle and the well body surround to form a filter tank, and the filter net is arranged at the upper end of the filter tank.

[0014] Optionally, the filter screen is arranged to be inclined toward the mixed water main pipe.

[0015] Optionally, a rain grate is provided on the cover body.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0018] When the environmentally friendly rainwater outlet of the sponge city is working, rainwater is discharged through the downpipe on the cover body on the well body. The initial rainwater falls into the pre-storage tank and is discharged outward through the initial rainwater pipe. Since the diameter of the initial rainwater pipe is small, the water level in the pre-storage tank rises when the rain continues, and the water level drives the floating block to move upward, and drives the sliding door downward through the transmission rod, thereby blocking the initial rainwater pipe. Then the rainwater overflows from the left side of the pre-storage tank and falls on the filtering structure, and is discharged from the rainwater pipe after being filtered by the filtering structure. The debris and water flushed down by the filtering structure are discharged outward through the mixed water main pipe, thereby realizing the separation of rainwater and impurities as well as initial rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a sponge city environmentally friendly rainwater outlet proposed in an embodiment of the utility model;

[0020] 1. Well body; 2. Cover body; 3. Downpipe; 4. Pre-storage tank; 5. Drainage tank; 6. Partition; 7. Overflow port; 8. Initial rainwater pipe; 9. Mixed water main; 10. Rainwater pipe; 11. Floating block; 12. Sliding door; 13. Transmission rod; 14. Fixed axis; 15. Baffle; 16. Filter net; 17. Filter tank; 18. Rainwater grate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0022] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Further, when an element is considered to be "fixedly connected to" another element, the two may be fixed in a detachable connection manner or in a non-detachable connection manner, such as socketing, snap-on, one-piece fixation, welding, etc., which can be achieved in the prior art and will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] The “first” and “second” involved in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0025] Combined with Figure 1 A sponge city environmental protection rainwater outlet of the present embodiment comprises a well body 1, a cover body 2 and a downpipe 3, the cover body 2 is installed at the upper end of the well body 1, the downpipe 3 is vertically installed in the middle of the cover body 2, a pre-storage groove 4 and a drainage groove 5 are arranged in the well body 1 at intervals, a partition 6 is arranged between the pre-storage groove 4 and the drainage groove 5, the partition 6 comprises a horizontal partition and a vertical partition, the partition 6 and the well body 1 surround the pre-storage groove 4, the upper end of the partition 6 is open as an overflow port 7, the lower end of the downpipe 3 extends into the pre-storage groove 4, an initial rainwater pipe 8, a mixed water main pipe 9 and a rainwater pipe 10 are connected to the well body 1, the initial rainwater pipe 8 is connected to the pre-storage groove 4, the mixed water main pipe 9 and the rainwater pipe 1 are connected to the drainage groove 5, and the connection positions of the mixed water main pipe 9 and the rainwater pipe 10 with the well body 1 are respectively located on both sides of the well body 1

[0026] The initial rainwater pipe 8 is connected to the pre-storage tank 4 and the mixed water main pipe 9. The diameter of the initial rainwater pipe 8 is smaller than the downpipe 3, smaller than the rainwater pipe 10 and smaller than the mixed water main pipe 9, so the discharge speed of the initial rainwater pipe 8 is relatively low. The connection position of the rainwater pipe 10 and the well body 1 is located directly below the overflow port 7 and is provided with a filtering structure. A floating block 11 and a sliding door 12 for opening and closing the initial rainwater pipe 8 are provided in the pre-storage tank 4. The sliding door 12 is connected to the well body 1 for sliding up and down. When the sliding door 12 slides downward, the initial rainwater pipe 8 is closed, and when the sliding door 12 slides upward, the initial rainwater pipe 8 is opened. A transmission rod 13 is connected to the sliding door 12, and the transmission rod 13 is located directly above the floating block 11.

[0027] When the environmentally friendly rainwater outlet of the sponge city is working, rainwater is discharged through the downpipe 3 on the cover body 2 on the well body 1. The initial rainwater falls into the pre-storage tank 4 and is discharged outward through the initial rainwater pipe 8. Since the diameter of the initial rainwater pipe 8 is small, the water level in the pre-storage tank 4 rises when the rain continues, and the water level drives the floating block 11 to move upward, and drives the sliding door 7 to move downward through the transmission rod 13, thereby blocking the initial rainwater pipe 8. Then the rainwater overflows from the left side of the pre-storage tank 4 and falls on the filtering structure, and is discharged from the rainwater pipe 10 after being filtered by the filtering structure. The debris and water flushed down by the filtering structure are discharged outward through the mixed water main pipe 9, thereby realizing the separation of rainwater and impurities as well as initial rainwater.

[0028] As a preferred solution of the utility model, the middle part of the transmission rod 13 is rotatably connected to the well body 1 through the fixed shaft 14, one end of the transmission rod 13 is located directly above the floating block 11, and the other end of the transmission rod 13 is rotatably connected to the sliding door 12. The length of the transmission rod 13 near the floating block 11 is greater than the length of the transmission rod 13 near the sliding door 12, so that the floating block 11 can push the sliding door 12 with less effort through the principle of the lever.

[0029] As a preferred solution of the utility model, a counterweight structure is provided on the end of the transmission rod 13 away from the transmission rod 13. The counterweight structure can be realized by increasing the length of the transmission rod 13 or adding other counterweight objects, mainly so that the weight of the transmission rod 13 on the left side of the fixed axis 14 is greater than the sum of the weight of the right side and the sliding door 12, so that the sliding door 12 is automatically opened when the water level drops.

[0030] As a preferred solution of the utility model, the floating block 11 is slidably sleeved on the downpipe 3, and the floating block 11 slides along the axial direction of the downpipe 3 to ensure that the floating block 11 can stably contact with the transmission rod 13 when sliding upward.

[0031] As a preferred embodiment of the utility model, a limiting portion 14 is provided at the lower end of the downpipe 3. The limiting portion 14 protrudes from the outer peripheral wall of the downpipe 3. The limiting portion 14 can be a convex ring on the outer peripheral wall of the lower end of the downpipe 3, so that when the floating block 11 is in contact with the floating block 11, it can limit the floating block 11 from falling out of the lower end of the downpipe 3.

[0032] As a preferred embodiment of the present utility model, the filtering structure includes a baffle 15 and a filter screen 16. The baffle 15 and the well body 1 surround a filter tank 17. The filter screen 16 is arranged at the upper end of the filter tank 17. The connection position between the rainwater pipe 10 and the well body 1 is located at the lower end of the filter tank 17. The filter screen 16 is inclined toward the mixed water main pipe 9. Rainwater overflows through the pre-storage tank 4 and falls onto the filter screen 16. After being filtered by the filter screen 16, it is discharged from the rainwater pipe 10. The debris and water flushed down by the filter screen 16 are discharged outward through the mixed water main pipe 9.

[0033] As a preferred solution of the utility model, a rainwater grate 18 is provided on the cover body 2 , and the rainwater grate 18 covers the top of the cover body 2 , and then the rainwater is primarily filtered through the rainwater grate 18 .

[0034] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A sponge city environmental protection rainwater inlet, characterized by: It includes a well body, a cover body and a downpipe, wherein a pre-storage tank and a drainage tank are arranged in the well body at upper and lower intervals, a partition is provided between the pre-storage tank and the drainage tank, an overflow port is provided at the upper end of the partition, the downpipe is arranged in the pre-storage tank, an initial rainwater pipe, a mixed water main pipe and a rainwater pipe are connected to the well body, the initial rainwater pipe is connected to the pre-storage tank, the mixed water main pipe and the rainwater pipe are connected to the drainage tank, the initial rainwater pipe is connected to the pre-storage tank and the mixed water main pipe, the connection position of the rainwater pipe and the well body is located directly below the overflow port and is provided with a filtering structure, a floating block and a sliding door for opening and closing the initial rainwater pipe are provided in the pre-storage tank, the sliding door is slidably connected to the well body up and down, a transmission rod is connected to the sliding door, and the transmission rod is located directly above the floating block.

2. The environmentally friendly rainwater outlet for sponge city according to claim 1 is characterized by: The middle part of the transmission rod is rotatably connected to the well body through a fixed axis, one end of the transmission rod is located directly above the floating block, and the other end of the transmission rod is rotatably connected to the sliding door.

3. The environmentally friendly rainwater outlet for sponge city according to claim 1 is characterized by: A counterweight structure is provided on one end of the transmission rod away from the transmission rod.

4. The environmentally friendly sponge city rainwater outlet according to claim 1 is characterized by: The floating block is slidably sleeved on the downpipe.

5. The environmentally friendly rainwater outlet for sponge city according to claim 4 is characterized by: A limiting portion is provided at the lower end of the downpipe, and the limiting portion is protruded from the outer peripheral wall of the downpipe.

6. A sponge city environmental protection rainwater outlet according to any one of claims 1 to 5, characterized in that: The filtering structure comprises a baffle and a filtering net, wherein the baffle and the well body surround and form a filtering tank, and the filtering net is arranged at the upper end of the filtering tank.

7. The environmentally friendly rainwater outlet for sponge city according to claim 6 is characterized by: The filter screen is arranged to be inclined toward the mixed water main pipe.

8. The environmentally friendly rainwater outlet for a sponge city according to any one of claims 1 to 5, characterized in that: The cover body is provided with a rainwater grate.

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