Novel sewage intercepting gutter inlet

Abstract

The utility model relates to the technical field of municipal drainage equipment, in particular to a novel sewage intercepting gutter inlet. Comprising a rainwater grate and a sewage intercepting cavity, and the rainwater grate is installed on the upper portion of the sewage intercepting cavity; the sewage intercepting cavity is of a double-cavity structure and is provided with a filtering sewage intercepting hanging basket and a sewage intercepting hanging basket, sewage intercepting holes are formed in the side wall of the sewage intercepting hanging basket and used for filtering large sundries, and the side wall of the filtering sewage intercepting hanging basket is a filtering wall. A water outlet is formed in the bottom of the sewage intercepting cavity and is communicated with a water drainage pipe channel. The rainwater strainer can meet the requirements of various rainfall and sewage treatment capacity, and can effectively prevent rainwater from flowing out of the rainwater strainer while giving consideration to the filtering efficiency and the filtering effect.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal drainage equipment, in particular to a novel sewage interception rainwater outlet. Background Art

[0002] A stormwater inlet is a structure that collects rainwater from a stormwater pipe or combined sewer. It consists of an inlet grate, a well, and branch pipes. Rainwater on the road surface flows into the drainage pipe through the inlet. Traditional road drainage methods do not effectively solve the problem of runoff pollution during the convergence of road surface rainwater. Therefore, it is necessary to add physical or ecological pollution interception measures to the traditional drainage system to control road runoff pollution and reduce the harm to the water environment. Stormwater inlets are the main way to collect and discharge road rainwater, so the reasonable design of stormwater inlets is the key to eliminating runoff pollution on urban roads. Existing stormwater inlets can only filter simply through the inlet grate, such as filtering out large debris such as branches and plastic bottles. Even if a filter basket is added, it can only take care of larger debris and cannot filter out harmful substances or relatively fine sediment, which can easily cause groundwater pollution or blockage of underground drainage pipes. Utility Model Content

[0003] The utility model provides a sewage intercepting rainwater outlet which can meet multiple filtering requirements, is convenient for collecting and filtering rainwater or sewage at a roadside rainwater outlet, and improves environmental pollution.

[0004] The new sewage interception rainwater outlet of the utility model includes a sewage interception chamber, which is a double-cavity structure, and is respectively provided with a filtering sewage interception hanging basket and a sewage interception hanging basket. The wall surface of the sewage interception hanging basket is provided with sewage interception holes for filtering larger debris, and the wall surface of the filtering sewage interception hanging basket is a filter wall; the bottom of the sewage interception chamber is provided with a drainage outlet, which is connected to the drainage pipe.

[0005] Preferably, it further comprises a rainwater grate, which is installed on the upper part of the sewage interception chamber.

[0006] Preferably, overflow holes are provided on the upper parts of the side walls of the sewage filtering and intercepting hanging basket and the sewage intercepting hanging basket.

[0007] Preferably, a grid staggered tooth plate is provided at the bottom of the sewage interception chamber, and a plurality of grid staggered tooth plates are placed in parallel and tilted manner at the bottom of the sewage interception chamber.

[0008] Preferably, a filter element is installed at the bottom of the sewage interception chamber, and the filter element forms a cavity below the filter sewage interception hanging basket and the side wall and bottom surface of the sewage interception chamber. The top of the cavity is an overflow port; the drain port is arranged on the side wall or bottom surface of the sewage interception chamber of the cavity.

[0009] Preferably, a support plate is provided at the overflow port to reinforce the filter element.

[0010] Preferably, the filter wall is configured as a filter membrane, a filter screen, a filter bag or a filter brick, the filler of the filter bag is an adsorptive material, and the adsorptive material includes graded sand and gravel.

[0011] Preferably, it further comprises a grate well ring, the top of the sewage interception chamber is a rainwater outlet shell, the grate well ring is matched with the rainwater outlet shell and installed, and the rainwater grate is installed in the grate well ring.

[0012] Preferably, a height adjustment device is installed on the grate well ring for adjusting the height of the rainwater grate.

[0013] Preferably, the filtering and sewage intercepting hanging basket is connected to the sewage intercepting hanging basket via a connecting pipe.

[0014] The rainwater outlet of the utility model is provided with a double-chamber sewage interception chamber, and different filtering requirements are achieved by installing a filtering sewage interception hanging basket and a sewage interception hanging basket. When the rainfall is large, the water flowing out from the filtering sewage interception hanging basket and the overflow hole of the sewage interception hanging basket can also achieve partial filtering effect through the filter element and the grid staggered tooth plate; at the same time, when the rainfall is too large, the rainwater can also be directly discharged through the overflow hole and the overflow port, which can meet the needs of various rainfall and sewage treatment volumes, take into account the filtering efficiency and effect, and effectively prevent rainwater from flowing back out of the rainwater grate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the sewage interception rainwater outlet according to an embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the sewage interception rainwater outlet according to an embodiment of the present utility model;

[0017] Figure 3 This is a cross-sectional view of a sewage interception rainwater outlet according to a possible embodiment of the utility model;

[0018] Among them, there are rainwater grate 1, grate well ring 2, height adjustment device 3, screw 31, nut 32, rainwater outlet shell 4, sewage interception chamber 5, drain outlet 6, filter sewage interception hanging basket 7, filter wall 71, sewage interception hanging basket 8, sewage interception hole 81, grille staggered tooth plate 9, filter element 10, overflow port 11, and overflow hole 12. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] like Figures 1 to 3As shown, the utility model provides a new type of sewage intercepting rainwater outlet, including a rainwater grate 1, a grate well ring 2 and a sewage intercepting chamber 5, wherein the top of the sewage intercepting chamber 5 is a rainwater outlet shell 4, the grate well ring 2 is matched and installed with the rainwater outlet shell 4, the rainwater grate 1 is installed in the grate well ring 2, and rainwater or sewage flows into the sewage intercepting chamber 5 through the rainwater grate 1; a drain outlet 6 is provided on one side of the bottom of the sewage intercepting chamber 5, and the sewage intercepting chamber 5 is fixed below the ground to facilitate the collection and filtration of rainwater and sewage, and is connected to the drainage pipe to facilitate the water after sewage interception and filtration to flow into the drainage pipe through the drain outlet 6 for convergence.

[0021] The sewage interception chamber 5 is a dual-chamber structure, with a filter and interception basket 7 and a filter and interception basket 8 respectively provided on the left and right sides. The dual-chamber structure can meet different filtering requirements. The sidewalls and bottom of the filter and interception basket 8 are provided with multiple interception holes 81. Rainwater filtered by the rainwater grate 1 is filtered again through the interception holes 81 to filter out garbage and debris in the rainwater. The sidewalls of the filter and interception basket 7 are filter walls 71, which can filter mud and sand or pollutants in the rainwater. The filter walls 71 can be filter membranes, filter screens, filter bags, or filter bricks. In this embodiment, the filter bags are filled with adsorbent materials, and the adsorbent materials include graded sand and gravel. The filter walls 71 adsorb, filter, or chemically react with pollutants to prevent residual pollutants from entering the underground drainage channel after being filtered by the basket.

[0022] In a further embodiment, an overflow hole 12 is provided on the upper side wall of the filtering and intercepting hanging basket 7 and the intercepting hanging basket 8. The overflow hole 12 has a large pore size. When it rains heavily or the sewage discharge volume is large, and the amount of water flowing into the hanging basket is large, the filtering wall 71 and the intercepting hole 81 used for filtering at the bottom and side walls of the filtering and intercepting hanging basket 7 and the intercepting hanging basket 8 drain water slowly, and the water level will rise to the position of the overflow hole 12. At this time, in order to avoid the water from overflowing the rainwater grate 1 and hindering the rainwater or sewage from being discharged from the drain outlet 6 into the drainage pipe, the water can enter the sewage intercepting chamber 5 through the overflow hole 12 with a larger pore size.

[0023] like Figure 2 In the illustrated embodiment, a grid tooth plate 9 is provided below the sewage interception hanging basket 8 at the bottom of the sewage interception chamber 5. A plurality of grid tooth plates 9 are placed parallel and tilted at the bottom of the sewage interception chamber 5. The rainwater filtered by the sewage interception hanging basket falls into the placement area of ​​the grid tooth plates 9. The grid tooth plates 9 can reduce the flow rate of the water flow, and at the same time, the mud and sand accompanying the rainwater are slowly deposited on the grid tooth plates 9. The grid tooth plates are movable and detachable structures, and the grid tooth plates can be regularly disassembled to clean the mud and sand attached thereto.

[0024] In a further embodiment, a filter element 10 is installed at the bottom of the sewage interception chamber 5. The filter element 10 is installed vertically or obliquely at the bottom of the sewage interception chamber 5, and forms a cavity below the sewage interception hanging basket 7 and the side wall and bottom surface of the sewage interception chamber 5; preferably, the drain port 6 is provided on the side wall of the sewage interception chamber 5 or the bottom surface of the sewage interception chamber 5; the top of the cavity is an overflow port 11, and a support plate can be provided at the overflow port 11 for reinforcing the filter element 10; Figure 1 The middle one is an embodiment in which the filter element 10 is installed obliquely, the drain port 6 is provided on the side wall of the sewage interception chamber 5 of the cavity body, and a support plate is provided at the overflow port 11; Figure 2 The figure shows an embodiment in which the filter element 10 is installed vertically, wherein the drain outlet 6 is not drawn; the rainwater deeply filtered or decontaminated by the filter and interception basket 7 can directly enter the cavity through the overflow outlet 11 and flow out through the drain outlet 6, which can take into account both the filtering effect and the speed of water overflow, and meet the filtering and drainage needs of different rainfall amounts at different times; the rainwater filtered by the interception basket 8 and after sedimentation by the grid staggered tooth plate 9 can be filtered and decontaminated again by the filter element 10 and then flow out through the drain outlet 6. The pollutants are adsorbed, filtered or chemically reacted by the filter element 10, which can prevent the pollutants from remaining after being filtered by the basket and entering the underground drainage pipe, thereby achieving multi-stage different filtering and decontamination effects. Figure 2 As shown, in a further embodiment, the filtering and intercepting hanging basket 7 and the intercepting hanging basket 8 are connected via a connecting pipe.

[0025] In a further embodiment, a height adjustment device 3 is installed on the grate ring 2 for adjusting the height of the rainwater grate 1. When the rainwater inlet is installed on the road, the installation height of the rainwater inlet may vary due to construction or other reasons. In order to maintain the road surface as flat as possible, the height adjustment device 3 is used to ensure that the upper surface of the installed rainwater grate 1 is as flat as possible with the road surface or slightly lower than the road surface, thereby achieving a flat road surface and facilitating the flow of water. For example, the height adjustment device 3 can adopt a basic screw 31 and nut 32 structure, and the threaded connection between the screw and the nut controls the installation height of the rainwater grate 1 on the grate ring 2.

[0026] The rainwater inlet of the utility model is provided with a double-chamber sewage interception chamber, and a sewage interception hanging basket 7 and a sewage interception hanging basket 8 are installed to meet different filtering requirements:

[0027] When the rainfall is small, the rainwater filtered in the sewage interception hanging basket 8 is filtered through the grid staggered tooth plate 9 to filter out the silt, and then the pollutants are filtered through the filter element 10 to ensure the filtering efficiency and effect. At the same time, the rainwater filtered in the sewage interception hanging basket 7 is directly discharged through the overflow port 11.

[0028] When the rainfall is heavy, the rainwater in the filter and interception basket 7 cannot be filtered in time. After the water level rises, the rainwater in the connecting pipe enters the filter basket 8, and then passes through the grid staggered plate 9 to settle the mud and filter element 10 in turn before being discharged from the drain outlet 6. When the rainfall is even heavier, part of the rainwater at the bottom of the filter basket 8 flows over the filter element 10, enters the cavity from the overflow port 11, and is discharged from the drain outlet 6, giving priority to ensuring smooth drainage.

[0029] When the rainfall increases further, rainwater flows out from the overflow hole 12, while still retaining a certain filtering function, giving priority to ensuring smooth drainage. The utility model can meet the needs of various rainfall and sewage treatment volumes, taking into account the filtering efficiency and effect, and effectively preventing rainwater from flowing back out of the rainwater grate.

Claims

1. A new type of sewage interception rainwater inlet, characterized by: It includes a sewage interception chamber, which is a double-chamber structure, and is respectively provided with a filtering sewage interception hanging basket and a sewage interception hanging basket. The wall of the sewage interception hanging basket is provided with sewage interception holes for filtering larger debris, and the wall of the filtering sewage interception hanging basket is a filter wall; the bottom of the sewage interception chamber is provided with a drain outlet, which is connected to the drainage pipe.

2. A novel sewage interception rainwater inlet according to claim 1, characterized in that: It also includes a rainwater grate, which is installed on the upper part of the sewage interception chamber.

3. The novel sewage interception rainwater inlet according to claim 1 is characterized in that: Overflow holes are provided on the upper parts of the side walls of the sewage filtering and intercepting hanging basket and the sewage intercepting hanging basket.

4. The novel sewage interception rainwater inlet according to claim 1 is characterized in that: A grid staggered tooth plate is provided at the bottom of the sewage interception chamber, and a plurality of grid staggered tooth plates are parallelly and obliquely arranged at the bottom of the sewage interception chamber.

5. The novel sewage interception rainwater inlet according to claim 1 is characterized in that: A filter element is installed at the bottom of the sewage interception chamber. The filter element forms a cavity with the side wall and bottom surface of the sewage interception chamber below the filter sewage interception hanging basket. The top of the cavity is an overflow port; the drain port is arranged on the side wall or bottom surface of the sewage interception chamber.

6. The novel sewage interception rainwater inlet according to claim 5 is characterized in that: A support plate is provided at the overflow port to reinforce the filter element.

7. The novel sewage interception rainwater inlet according to claim 1 is characterized in that: The filter wall is configured as a filter membrane, a filter screen, a filter bag or a filter brick, the filler of the filter bag is an adsorptive material, and the adsorptive material includes graded sand and gravel.

8. The novel sewage interception rainwater inlet according to claim 2 is characterized in that: It also includes a grate well ring. The top of the sewage interception cavity is a rainwater inlet shell. The grate well ring is matched with the rainwater inlet shell and installed. The rainwater grate is installed in the grate well ring.

9. The novel sewage interception rainwater inlet according to claim 8 is characterized in that: A height adjustment device is installed on the grate well ring to adjust the height of the rainwater grate.

10. The novel sewage interception rainwater inlet according to claim 1 is characterized in that: The filtering and intercepting hanging baskets are connected with each other through a connecting pipe.

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