Rain and sewage diversion type gutter inlet structure

Abstract

The invention provides a rainwater and sewage diversion type gutter inlet structure. The rainwater and sewage diversion type gutter inlet structure comprises a water collecting well, an overflow weir, a sewage tank, a rainwater tank, a grate, a sewage intercepting hanging basket, a sewage outlet pipe, a floating control flow adjusting valve, a cover plate and a rainwater outlet pipe. The water collecting well is arranged underground and comprises a bottom plate, a well wall and a lintel, the well wall is arranged on the bottom plate, a well chamber is defined by the well wall and the bottom plate, and the lintel is arranged on two arms on the side, away from the bottom plate, of the well wall in a striding mode. The overflow weir is arranged on the bottom plate and located below the lintel, and the well chamber is divided into a sewage bin and a rainwater bin. The grate is arranged at the top of the sewage cabin, the sewage intercepting hanging basket is arranged below the grate, the sewage outlet pipe is connected into the sewage cabin, and the floating control flow regulating valve is arranged at a pipe opening of the sewage outlet pipe; the cover plate is arranged on the top of the rainwater tank, and the rainwater outlet pipe is connected into the rainwater tank. The problem that in the prior art, greasy dirt waste water, ground flushing water and initial rainwater enter a municipal rainwater pipe network system through a rainwater opening, and consequently water environment pollution is caused is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of drainage system design, and particularly relates to a rain and sewage diversion type rainwater inlet structure. Background Art

[0002] In order to improve and enhance the urban water environment quality, each city has successively implemented a large number of water-related infrastructure projects, continuously improving the water environment quality and achieving certain results. However, there are still some areas where there is a phenomenon of direct sewage discharge, especially in areas with a high density of restaurants in the old city and along the streets where merchants pour oily waste water into the rainwater inlets artificially, resulting in the oily waste water entering the rainwater system and polluting the water environment. At the same time, the flushing water on the ground and the rainwater runoff in the initial stage of rainfall have relatively high pollutant concentrations. If they are discharged into water bodies such as rivers and lakes through the rainwater inlets, it will cause pollution to the river and lake water bodies, making the water environment governance still in a stage of moving forward with a heavy burden.

[0003] Therefore, how to fundamentally solve the pollution of water bodies caused by oily waste water, flushing water on the ground and initial rainwater is a technical problem that those skilled in the art urgently want to solve. Summary of the Invention

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a rain and sewage diversion type rainwater inlet structure, which is used to solve the problem of water environmental pollution caused by oily waste water, flushing water on the ground and initial rainwater entering the municipal rainwater pipe network system through the rainwater inlet in the prior art.

[0005] To achieve the above object and other related objects, the present invention provides a rain and sewage diversion type rainwater inlet structure, and the rain and sewage diversion type rainwater inlet structure includes:

[0006] A sump, an overflow weir, a sewage chamber, a rainwater chamber, a grating, a pollution interception hanging basket, a sewage outlet pipe, a floating control flow regulating valve, a cover plate and a rainwater outlet pipe;

[0007] The sump is arranged underground, and includes a bottom plate, a well wall and a lintel. The well wall is arranged on the bottom plate and encloses a well chamber with the bottom plate. The lintel spans on two arms on the side of the well wall away from the bottom plate;

[0008] The overflow weir is arranged on the bottom plate and is located below the lintel, and divides the well chamber into the sewage chamber and the rainwater chamber;

[0009] The grating is arranged on the top of the sewage chamber, the pollution interception hanging basket is arranged below the grating, the sewage outlet pipe is connected to the inside of the sewage chamber, and the floating control flow regulating valve is arranged at the pipe orifice of the sewage outlet pipe;

[0010] The cover plate is arranged on the top of the rainwater chamber, and the rainwater outlet pipe is connected to the inside of the rainwater chamber.

[0011] Optionally, the floating control flow regulating valve includes a floating drum, a connecting rod and a valve plate. The valve plate is arranged at the orifice of the sewage outlet pipe and is connected to the floating drum through the connecting rod. The floating drum rises or falls according to the water level change in the sewage tank, so as to drive the valve plate to perform the action of opening or closing the sewage outlet pipe.

[0012] Optionally, the top of the overflow weir is higher than the top of the rainwater outlet pipe, and the distance between the overflow weir and the lintel is not less than 300 mm.

[0013] Optionally, the grate includes a grid structure, and the hole size of the grate is larger than the hole size of the sewage interception hanging basket.

[0014] Optionally, the grate is arranged below the ground, and the cover plate is arranged above the ground.

[0015] Optionally, the distance between the grate and the ground is between 30 mm and 50 mm, and the distance between the cover plate and the ground is not more than 10 mm.

[0016] Optionally, the distance between the bottom of the sewage outlet pipe and the bottom plate is not less than 300 mm, and the diameter of the sewage outlet pipe is not more than 160 mm.

[0017] Optionally, the distance between the bottom of the rainwater outlet pipe and the bottom plate is not less than 500 mm, and the diameter of the rainwater outlet pipe is not less than 300 mm.

[0018] Optionally, the rainwater and sewage separation type rainwater inlet structure further includes: a first support and a second support. The grate is arranged on the top of the sewage tank through the first support, and the cover plate is arranged on the top of the rainwater tank through the second support.

[0019] Optionally, the rainwater and sewage separation type rainwater inlet structure further includes: a rubber pad, which is arranged between the cover plate and the second support.

[0020] As described above, the rainwater and sewage separation type rainwater inlet structure of the present invention, through a new structural design, physically opens and closes the sewage outlet pipe through a floating control flow regulating valve to achieve rainwater and sewage separation. The sewage (such as oil-contaminated wastewater, ground flushing water or initial rainwater) is discharged into the municipal sewage pipe network system through the sewage outlet pipe of the sewage tank. When the rainfall is large, the rainwater is discharged into the municipal rainwater pipe network system through the rainwater outlet pipe of the rainwater tank, effectively reducing the water environmental pollution caused by sewage entering the municipal rainwater pipe network system; the present invention has the advantages of simple construction, short construction period, convenient installation, small floor area, easy management and maintenance, etc. Description of the Drawings

[0021] Figure 1 It shows the top plan view of the rainwater and sewage separation type rainwater inlet structure of the present invention.

[0022] Figure 2 Shown is the lower floor plan of the rainwater and sewage separation type rainwater inlet structure of the present invention.

[0023] Figure 3 Shown as Figure 1 The sectional view of the shown rainwater and sewage separation type rainwater inlet structure.

[0024] Figure 4 Shown is the plan view of the grate in the rainwater and sewage separation type rainwater inlet structure of the present invention.

[0025] Figure 5 Shown is the plan view of the sewage intercepting hanging basket in the rainwater and sewage separation type rainwater inlet structure of the present invention.

[0026] Figure 6 Shown as Figure 5 The sectional view of the shown sewage intercepting hanging basket.

[0027] Description of component numbers

[0028] 10 Sump

[0029] 101 Bottom plate

[0030] 102 Well wall

[0031] 103 Lintel

[0032] 11 Overflow weir

[0033] 12 Sewage chamber

[0034] 13 Rainwater chamber

[0035] 14 Grate

[0036] 15 Sewage intercepting hanging basket

[0037] 16 Sewage outlet pipe

[0038] 17 Float control flow regulating valve

[0039] 171 Float

[0040] 172 Connecting rod

[0041] 173 Valve plate

[0042] 18 Cover plate

[0043] 19 Rainwater outlet pipe

[0044] 20 First support

[0045] 21 Second support Detailed implementation manner

[0046] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0047] Please refer to Figures 1 to 6 . It should be noted that the illustrations provided in this embodiment only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the illustrations, rather than being drawn according to the number, shape, and size of the components in actual implementation. The form, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the layout form of its components may also be more complex.

[0048] As Figures 1 to 3 shown, this embodiment provides a rainwater and sewage diversion type rainwater inlet structure, including a sump 10, an overflow weir 11, a sewage chamber 12, a rainwater chamber 13, a grate 14, a pollution interception hanging basket 15, a sewage outlet pipe 16, a floating control flow regulating valve 17, a cover plate 18, and a rainwater outlet pipe 19.

[0049] The sump 10 is arranged underground and includes a bottom plate 101, a well wall 102, and a lintel 103. The well wall 102 is arranged on the bottom plate 101 and encloses a well chamber with the bottom plate 101. The lintel 103 spans on two arms on the side of the well wall 102 away from the bottom plate 101. In one embodiment, the lintel 103 spans on two opposite arms of the well wall 102.

[0050] The overflow weir 11 is arranged on the bottom plate 101 and below the lintel 103, and divides the well chamber into a sewage chamber 12 and a rainwater chamber 13.

[0051] Among them, the top of the overflow weir 11 is higher than the pipe top of the rainwater outlet pipe 19 in the rainwater chamber 12, so as to increase the storage volume of the sewage chamber 12.

[0052] The distance between the overflow weir 11 and the lintel 103 (such as Figure 3 shown as H1) is not less than 300 mm, that is, H1 ≥ 300 mm, to avoid the reduction of the rainwater flow rate due to the too small distance between the overflow weir 11 and the lintel 103.

[0053] Actually, the size of the sewage chamber 12 can be adjusted according to the water volume within the catchment area. If the water volume is large, a sewage chamber 12 with a larger size is designed; if the water volume is small, a sewage chamber 12 with a smaller size is designed. For sewage chambers 12 of different sizes, only the number of the grates 14 and the pollution interception hanging baskets 15 needs to be adjusted accordingly.

[0054] The grating 14 is arranged at the top of the sewage tank 12. In one embodiment, as Figure 4 shown, the grating 14 includes a grid structure to facilitate the entry of rain and sewage while intercepting large debris in the rain and sewage, preventing people from discarding garbage into the sewage tank 12. In fact, the grating 14 can be made of stainless steel or plastic.

[0055] Among them, the grating 14 is arranged lower than the ground; as an alternative, the distance between the grating 14 and the ground is between 30 mm and 50 mm, that is, the distance between the grating 14 and the ground is greater than or equal to 30 mm and less than or equal to 50 mm to facilitate the entry of rain and sewage.

[0056] Furthermore, the rainwater and sewage diversion type rainwater inlet structure further includes a first support 20. Among them, the grating 14 is arranged at the top of the sewage tank 12 through the first support 20.

[0057] In application, the grating 14 is generally not opened and is only opened when cleaning the intercepting hanging basket 15, cleaning the sediment, impurities, etc. at the bottom of the sewage tank 12, when the pipeline of the sewage tank 12 is blocked, or when replacing or repairing the floating control flow regulating valve 17.

[0058] The intercepting hanging basket 15 is arranged below the grating 14 to facilitate secondary interception of debris in the rain and sewage, as Figure 5 and Figure 6 shown. In one embodiment, the intercepting hanging basket 15 is suspended below the grating 14 by a hook. In fact, the intercepting hanging basket 15 can be made of stainless steel or plastic, and the intercepting hanging basket 15 can be made into a sunken structure.

[0059] Among them, the hole size of the intercepting hanging basket 15 is smaller than the hole size of the grating 14 to facilitate interception of finer solid residues in the rain and sewage.

[0060] In application, the intercepting hanging basket 15 is suspended in the sewage tank 12 and is generally not taken out. It is only taken out for cleaning when the intercepted solid debris is full.

[0061] The sewage outlet pipe 16 is connected to the inside of the sewage tank 12. In one embodiment, the sewage outlet pipe 16 is connected to one side wall of the sewage tank 12 and is disconnected at the connection point, that is, it does not extend into the sewage tank 12; of course, it is also feasible for the sewage outlet pipe 16 to partially extend into the sewage tank 12, which has no substantial impact on this embodiment.

[0062] Among them, the distance between the bottom of the sewage outlet pipe 16 and the bottom plate 101 (as Figure 3The shown H2) is not less than 300 mm, that is, H2≥300 mm. Designed in this way, on the one hand, it is convenient for the installation of the floating control flow regulating valve 17; on the other hand, it can prevent the sediment, impurities, etc. sinking to the bottom of the sewage tank 12 from accumulating too high in a short time, resulting in the failure of the floating control flow regulating valve 17, and can extend the operation and maintenance cycle.

[0063] The diameter of the sewage outlet pipe 16 is not greater than 160 mm, which has a current limiting effect. On the one hand, when the amount of dumped sewage is too large, it can prevent a large amount of sewage from entering the municipal sewage pipe network system at the same time, causing an excessive burden on the sewage pipe network or sewage treatment plant; on the other hand, it can prevent a large amount of rainwater from entering the municipal sewage pipe network system.

[0064] The floating control flow regulating valve 17 is arranged at the pipe orifice of the sewage outlet pipe 16, and the floating control flow regulating valve 17 adapted to the sewage outlet pipe 16 is used to control the opening and closing of the sewage outlet pipe 16 according to the water level of the sewage tank 12. In one embodiment, the floating control flow regulating valve 17 is arranged at the pipe orifice of the sewage outlet pipe 16 close to the well wall 102.

[0065] In one embodiment, the floating control flow regulating valve 17 includes a floating cylinder 171, a connecting rod 172 and a valve plate 173. The valve plate 173 is arranged at the pipe orifice of the sewage outlet pipe 16 and is connected to the floating cylinder 171 through the connecting rod 172. The floating cylinder 171 rises or falls according to the change of the water level in the sewage tank 12 to drive the valve plate 173 to perform the action of opening or closing the sewage outlet pipe 16.

[0066] For example, when the water level of the sewage tank 12 is low, the floating cylinder 171 descends and drives the valve plate 173 to rise through the connecting rod 172, so that the valve plate 173 is away from the pipe orifice of the sewage outlet pipe 16 to open the sewage outlet pipe 16; when the water level of the sewage tank 12 rises, the floating cylinder 171 rises and drives the valve plate 173 to descend through the connecting rod 172, so that the valve plate 173 covers the pipe orifice of the sewage outlet pipe 16 to close the sewage outlet pipe 16.

[0067] The cover plate 18 is arranged on the top of the rainwater tank 13 and belongs to a solid movable cover plate. While preventing ground rainwater and sewage from entering the rainwater tank 13, it is also convenient for the operation and maintenance of the rainwater tank 13. For example, cleaning the sediment at the bottom of the rainwater tank 13, etc.

[0068] In application, the cover plate 18 is generally not opened, and it will only be opened when cleaning the sediment at the bottom of the rainwater tank 13 or when the pipeline of the rainwater tank is blocked.

[0069] Among them, the cover plate 18 is set not lower than the ground. For example, it is set flush with the ground or higher than the ground; in order to better prevent ground sewage and rainwater from entering, the cover plate 18 is usually set higher than the ground; as an alternative solution, the distance between the cover plate 18 and the ground is not greater than 10 mm, that is, the distance between the cover plate 18 and the ground is greater than 0 and less than or equal to 10 mm.

[0070] Furthermore, the rainwater and sewage diversion type rainwater inlet structure also includes a second support 21 , wherein the cover plate 18 is arranged on the top of the rainwater tank 13 through the second support 21 .

[0071] Furthermore, the rainwater and sewage diversion type rainwater inlet structure also includes a rubber pad (not shown in the figure), which is arranged between the cover plate 18 and the second support 21 to increase the sealing between the cover plate 18 and the second support 21 to better prevent rainwater and sewage from entering.

[0072] The rainwater outlet pipe 19 is connected to the rainwater tank 13. In one embodiment, the rainwater outlet pipe 19 is connected to a side wall of the rainwater tank 13 and disconnected at the connection point, that is, it does not extend into the rainwater tank 13; of course, it is also feasible that the rainwater outlet pipe 19 partially extends into the rainwater tank 13, which has no substantial impact on this embodiment.

[0073] The distance between the bottom of the rainwater outlet pipe 19 and the bottom plate 101 (such as Figure 3 The H3 shown is not less than 500 mm, that is, H3 ≥ 500 mm, to facilitate the sedimentation of silt in rainwater.

[0074] The diameter of the rainwater outlet pipe 19 is not less than 300 mm; when the size of the sewage tank 12 is larger, that is, when a double grate or multiple grates are provided on the top of the sewage tank 12, the diameter of the rainwater outlet pipe 19 is not less than 400 mm.

[0075] It should be noted that, in the rainwater and sewage diversion type rainwater inlet structure recorded in this embodiment, all accessories are detachably installed and can be removed by disassembly for easy maintenance; in addition, the pipe diameter mentioned in this embodiment refers to the nominal diameter of the corresponding outlet pipe.

[0076] See below. Figures 1 to 3 , the working conditions of the rainwater and sewage diversion type rainwater outlet structure recorded in this embodiment are specifically described.

[0077] On sunny days or when it rains lightly, the water level in the sewage tank 12 is low, the buoy 171 in the float-controlled flow regulating valve 17 descends and drives the valve plate 173 through the connecting rod 172 to open the sewage outlet pipe 16; sewage such as oily wastewater, ground washing water or initial rainwater enters the sewage tank 12 through the grate 14 and the sewage interception basket 15 and is discharged into the municipal sewage pipe network system through the sewage outlet pipe 16.

[0078] When the rainfall is heavy, such as moderate rain or heavy rain, the sewage outlet pipe 12 does not have time to discharge a large amount of rainwater, and the water level in the sewage tank 12 gradually rises. The buoy 171 in the float-controlled flow regulating valve 17 rises and drives the valve plate 173 to close the sewage outlet pipe 16 through the connecting rod 172; the rainwater in the sewage tank 12 enters the rainwater tank 13 through the overflow weir 11 and is discharged into the municipal rainwater pipe network system through the rainwater outlet pipe 19.

[0079] In summary, a rain and sewage diversion type rainwater inlet structure of the present invention, through a new structural design, physically opens and closes the sewage outlet pipe through a floating control flow regulating valve to achieve rain and sewage diversion. The sewage (such as oil-contaminated wastewater, ground flushing water or initial rainwater) is discharged into the municipal sewage pipe network system through the sewage outlet pipe of the sewage tank. When the rainfall is large, the rainwater is discharged into the municipal rainwater pipe network system through the rainwater outlet pipe of the rainwater tank, effectively reducing the water environmental pollution caused by sewage entering the municipal rainwater pipe network system. The present invention has the advantages of simple construction, short construction period, convenient installation, small floor area, and easy management and maintenance. Therefore, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0080] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A rain and sewage diversion type rainwater inlet structure, characterized in that, The rain-sewage separated rainwater inlet structure includes: a catch basin, an overflow weir, a sewage chamber, a rainwater chamber, a grate, a pollution intercepting hanging basket, a sewage outlet pipe, a floating control flow regulating valve, a cover plate and a rainwater outlet pipe; The catch basin is arranged underground and includes a bottom plate, a well wall and a lintel. The well wall is arranged on the bottom plate and encloses a well chamber with the bottom plate. The lintel spans on two arms on the side of the well wall away from the bottom plate; The overflow weir is arranged on the bottom plate and below the lintel, and divides the well chamber into the sewage chamber and the rainwater chamber; The grate is arranged on the top of the sewage chamber, the pollution intercepting hanging basket is arranged below the grate, the sewage outlet pipe is connected into the sewage chamber, and the floating control flow regulating valve is arranged at the pipe orifice of the sewage outlet pipe; The cover plate is arranged on the top of the rainwater chamber, and the rainwater outlet pipe is connected into the rainwater chamber.

2. The rainwater and sewage diversion type rainwater inlet structure according to claim 1, characterized in that, The floating control flow regulating valve includes a floating cylinder, a connecting rod and a valve plate. The valve plate is arranged at the pipe orifice of the sewage outlet pipe and is connected with the floating cylinder through the connecting rod. The floating cylinder rises or falls according to the water level change in the sewage chamber to drive the valve plate to perform the action of opening or closing the sewage outlet pipe.

3. The rainwater and sewage diversion type rainwater inlet structure according to claim 1, characterized in that, The top of the overflow weir is higher than the pipe top of the rainwater outlet pipe, and the distance between the overflow weir and the lintel is not less than 300 mm.

4. The rainwater and sewage diversion type rainwater inlet structure according to claim 1, characterized in that, The grate includes a grid structure, and the hole size of the grate is larger than the hole size of the pollution intercepting hanging basket.

5. The rainwater and sewage diversion type rainwater inlet structure according to claim 1, characterized in that The grate is arranged lower than the ground, and the cover plate is arranged higher than the ground.

6. The rainwater and sewage diversion type rainwater inlet structure according to claim 5, characterized in that, The distance between the grate and the ground is between 30 mm and 50 mm, and the distance between the cover plate and the ground is not greater than 10 mm.

7. The rainwater and sewage diversion type rainwater inlet structure according to claim 1, characterized in that, The distance between the bottom of the sewage outlet pipe and the bottom plate is not less than 300 mm, and the pipe diameter of the sewage outlet pipe is not greater than 160 mm.

8. The rainwater and sewage diversion type rainwater inlet structure according to claim 1, characterized in that The distance between the bottom of the rainwater outlet pipe and the bottom plate is not less than 500 mm, and the pipe diameter of the rainwater outlet pipe is not less than 300 mm.

9. The rainwater and sewage diversion type rainwater inlet structure according to any one of claims 1-8, characterized in that, The rain-sewage separated rainwater inlet structure further includes: a first support and a second support. The grate is arranged on the top of the sewage chamber through the first support, and the cover plate is arranged on the top of the rainwater chamber through the second support.

10. The rainwater and sewage diversion type rainwater inlet structure according to claim 9, characterized in that, The rain-sewage separated rainwater inlet structure further includes: a rubber pad, which is arranged between the cover plate and the second support.

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