Front well of rainwater collecting pool

Abstract

The utility model discloses a front well of a rainwater collecting pool, which comprises a well body divided into a diversion chamber and a discarding chamber by a U-shaped partition wall, a filter component is mounted on the inner side of the U-shaped partition wall, an overflow pipe is connected with the diversion chamber and a municipal rainwater pipeline, a discarding pipe is connected with the discarding chamber and a sewage well, and a rainwater collecting pipe is connected with the discarding chamber and the rainwater collecting pool. A submersible sewage pump is arranged at the bottom of the discarding chamber; a water outlet of the submersible sewage pump is connected with the lower end of the lifting pipe; when the soil covering depth h above the top of the rainwater collecting pool is smaller than or equal to 1.5 m, the rainwater collecting pipe and the flow discarding pipe are connected with the upper end of the lifting pipe through the three-way valve, and when the soil covering depth h above the top of the rainwater collecting pool is larger than 1.5 m, the flow discarding pipe is connected with the upper end of the lifting pipe; and the three-way valve and the submersible sewage pump are electrically connected with the control system. The front well of the rainwater collecting pool has multiple functions of safe flow distribution, sewage interception, flow discarding, lifting, visualization and the like, is small in occupied area, beneficial to improvement of greening and attractive effects, convenient to maintain and high in economic practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage equipment, in particular to a front well of a rainwater collection pool. Background Art

[0002] At present, it is necessary to set up a safety diversion well, a sewage interception basket well, and a discarded flow filter well in front of the rainwater collection pool of the rainwater drainage network system, and a lifting well is also required for the rainwater collection pool with a shallow burial depth. The safety diversion well, sewage interception basket well, discarded flow filter well, and lifting well, wells with different functions are set in roads or green areas, which not only affects the appearance and is inconvenient to maintain, but also cannot guarantee the amount of discarded rainwater: if the amount of discarded rainwater is too little, the water quality collected in the rainwater collection pool will be poor, and if the amount of discarded rainwater is too much, it will lead to the waste of high-quality rainwater. Therefore, the utility model proposes a pre-well for a rainwater collection pool, in order to solve the above-mentioned technical problems, and can also improve the water quality of the discharged water under good operation, and has a certain sewage interception function. Summary of the invention

[0003] The purpose of the utility model is to overcome the defects in the prior art and provide a rainwater collection pool pre-well, which divides the internal space of the well into a diversion chamber and a discard chamber by a partition wall with a filtering component, and provides a submersible sewage pump electrically connected to the control system inside the discard chamber, so that the rainwater collection pool pre-well of the utility model has multiple functions such as safe diversion, sewage interception, discard, lifting, and visualization, and realizes the collection of wells with different functions such as safe diversion wells, sewage interception hanging basket wells, discard filter wells, and lifting wells, which occupies a small area, is conducive to improving the greening and aesthetic effect, is easy to maintain, and is economical and practical.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is to design a rainwater collection pool front well, including a well body and a control system, the well body upper port is provided with a grille manhole cover, the well body interior is divided into a diversion chamber and a discarded flow chamber by a U-shaped partition wall, a filter assembly is installed in the inner cavity of the U-shaped partition wall, a rainwater collection pipe and an overflow pipe communicating with the diversion chamber are provided on the upper side of the outer peripheral wall of the well body, the overflow pipe is connected to a municipal rainwater pipe at one end away from the well body, a rainwater collection pipe and a discarded flow pipe communicating with the discarded flow chamber are also provided on the upper side of the outer peripheral wall of the well body, the discarded flow pipe is connected to a sewage well at one end away from the well body, and the rainwater collection pipe is connected to a rainwater collection pool at one end away from the well body, a submersible sewage pump electrically connected to the control system is installed at the bottom of the discarded flow chamber, and the water outlet of the submersible sewage pump is connected to the lower end of the lifting pipe;

[0005] When the soil depth above the top of the rainwater collection pool is h≤1.5m, one end of the rainwater collection pipe connected to the well body and one end of the waste flow pipe connected to the well body are connected to the upper end of the lifting pipe through a three-way valve, and the three-way valve is an electric valve or a solenoid valve electrically connected to the control system;

[0006] When the soil depth h above the top of the rainwater collection pool is greater than 1.5 m, the end of the abandoned flow pipe connected to the well body is connected to the upper end of the lifting pipe.

[0007] The utility model discloses a rainwater collection pool front well, which divides the internal space of the well body into a diversion chamber and a discard chamber by a partition wall with a filtering component, and provides a submersible sewage pump electrically connected to the control system inside the discard chamber, so that the rainwater collection pool front well of the utility model has multiple functions such as safe diversion, sewage interception, discard, lifting, and visualization, and realizes the collection of well bodies with different functions such as safe diversion well, sewage interception hanging basket well, discard filter well, and lifting well, which occupies a small area, is conducive to improving the greening and aesthetic effect, is easy to maintain, and is economical and practical.

[0008] The preferred technical solution is that the upper edge height of the filter assembly is greater than the bottom elevation of the overflow pipe and greater than the bottom elevation of the rainwater collection pipe. The filter assembly fully filters the water entering the discarding chamber from the diversion chamber; the front well of the rainwater collection pool of the utility model has a certain storage capacity, which can not only relieve the municipal drainage pressure, but also discard a part of the inferior rainwater and the domestic wastewater collected at ordinary times at the beginning of the rain, so as to improve the water quality of the rainwater collected in the rainwater collection pool.

[0009] A further preferred technical solution is that the depth of the diversion chamber is less than the depth of the waste chamber, so as to facilitate the arrangement of the submersible sewage pump at the bottom of the waste chamber and at the same time make the rainwater collection pool front well of the utility model have a better lifting function.

[0010] A further preferred technical solution is that a liquid level meter electrically connected to the control system is provided inside the waste flow chamber. The difference between the overflow water level of the well body and the pump start water level is the adjustment volume of the submersible sewage pump. The liquid level meter and the submersible sewage pump are linked through the control system, thereby effectively adjusting the amount of rainwater collected by the front well of the rainwater collection pool of the utility model.

[0011] A further preferred technical solution is that the filter assembly includes a grid mesh 1 and a grid mesh 2 arranged in parallel at intervals, the aperture of the grid mesh 1 is greater than the aperture of the grid mesh 2, the grid mesh 1 is located on the side close to the diversion chamber, and the grid mesh 2 is located on the side close to the discard chamber. The grid mesh 1 is used to intercept and filter larger volume of dirt, such as plastic bottles, branches, leaves, etc., and the grid mesh 2 is used to intercept and filter smaller volume of dirt, such as sludge, sand and gravel, etc. The two complement each other to effectively remove impurities in rainwater.

[0012] A further preferred technical solution is that two groups of U-shaped channel steels are respectively provided on the vertical inner wall surfaces on both sides of the U-shaped partition wall, and the vertical end edges on both sides of the grille mesh 1 are inserted into the inside of one group of corresponding U-shaped channel steels, and the vertical end edges on both sides of the grille mesh 2 are inserted into the inside of another group of corresponding U-shaped channel steels. When the filter assembly is not seriously clogged, the grille manhole cover can be opened and the filter assembly can be high-pressure washed with a high-pressure water gun; when the filter assembly is seriously clogged, the grille mesh can be pulled out from the inside of a group of corresponding U-shaped channel steels, and the grille mesh can be cleaned on the ground. After cleaning, the grille mesh can be re-inserted into the inside of a group of corresponding U-shaped channel steels. The operation is convenient and the high efficiency of the filter assembly when cleaning is ensured.

[0013] A further preferred technical solution is that the aperture range of the grid mesh 1 is 10-40 mm, and the aperture range of the grid mesh 2 is 5-15 mm.

[0014] A further preferred technical solution is that the upper edges of the first and second grille nets are provided with lifting rings. When cleaning the filter assembly, the grille net can be lifted or reinstalled in the inner cavity of the U-shaped partition wall by a lifting device, which helps to save manpower when cleaning the filter assembly.

[0015] A further preferred technical solution is that more than two submersible sewage pumps are provided to achieve the purpose of one for backup and one for use, thereby avoiding failure of the front well of the rainwater collection pool due to failure of the submersible sewage pump.

[0016] A further preferred technical solution is that the cross section of the well body is a rectangular structure, the outer peripheral length of the cross section of the well body is in the range of 2500±500mm, and the outer peripheral width is in the range of 2000±500mm. The front well of the rainwater collection pool with this structural size can meet the requirements of conventional municipal safety diversion wells, sewage interception basket wells, abandoned flow filtering wells, and lifting wells, and is highly economical and practical.

[0017] The advantages and beneficial effects of the utility model are:

[0018] 1. A rainwater collection pool pre-well of the utility model divides the internal space of the well body into a diversion chamber and a discard chamber by using a partition wall with a filtering component, and a submersible sewage pump electrically connected to the control system is provided inside the discard chamber, so that the rainwater collection pool pre-well of the utility model has multiple functions such as safe diversion, sewage interception, discard, lifting, and visualization, realizing the collection of wells with different functions such as safe diversion wells, sewage interception hanging basket wells, discard filter wells, and lifting wells, which occupies a small area, is conducive to improving the greening and aesthetic effect, is easy to maintain, and is economical and practical.

[0019] 2. The upper edge height of the filter assembly is greater than the bottom elevation of the overflow pipe and greater than the bottom elevation of the rainwater collection pipe. The filter assembly fully filters the water entering the discarding chamber from the diversion chamber; the rainwater collection pool front well of the utility model has a certain storage capacity, which can not only relieve the municipal drainage pressure, but also discard a part of the inferior rainwater and the domestic wastewater collected at ordinary times at the beginning of the rain, so as to improve the water quality of the rainwater collected in the rainwater collection pool.

[0020] 3. The depth of the diversion chamber is less than the depth of the waste chamber. This facilitates the arrangement of the submersible sewage pump at the bottom of the waste chamber, and at the same time enables the rainwater collection pool front well of the utility model to have a better lifting function.

[0021] 4. The difference between the overflow water level of the well body and the pump start water level is the regulating volume of the submersible sewage pump. The liquid level meter and the submersible sewage pump are linked through the control system, so as to effectively adjust the rainwater collection volume of the front well of the rainwater collection pool of the utility model.

[0022] 5. Grid one is used to intercept and filter larger dirt, such as plastic bottles, branches, leaves, etc. Grid two is used to intercept and filter smaller dirt, such as sludge, sand and gravel, etc. The two complement each other to effectively remove impurities in rainwater.

[0023] 6. When the filter component is not seriously clogged, you can open the grille cover and use a high-pressure water gun to high-pressure wash the filter component; when the filter component is seriously clogged, you can pull the grille out from a set of corresponding U-shaped channel steels and clean the grille on the ground. After cleaning, reinsert the grille into a set of corresponding U-shaped channel steels. It is easy to operate and ensures the high efficiency of the filter component during cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic plan view of a front well of a rainwater collection pool in Example 1;

[0025] Figure 2 yes Figure 1 A partial enlarged view of the S in the middle;

[0026] Figure 3 is a longitudinal cross-sectional view of a front well of a rainwater collection pool in Example 1;

[0027] Figure 4 It is a structural diagram of the grid mesh 1;

[0028] Figure 5 It is a schematic plan view of a front well of a rainwater collection pool in Example 2;

[0029] Figure 6 It is a longitudinal cross-sectional view of a front well of a rainwater collection pool in Example 2.

[0030] In the figure: 1. Well body; 2. Filter assembly; 3. Rainwater collection pipe; 4. Submersible sewage pump; 5. Lifting pipe; 6. Three-way valve; 7. Rainwater collection pipe; 8. Rainwater collection tank; 9. Discard pipe; 10. Liquid level gauge; 11. Overflow pipe; 1-1. U-shaped partition wall; 1-2. Grille manhole cover; 2-1. Grille net 1; 2-2. Grille net 2; 2-3. U-shaped channel steel; 2-4. Lifting ring; Ⅰ. Diversion chamber; Ⅱ. Discard chamber. DETAILED DESCRIPTION

[0031] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0032] Example 1

[0033] like Figures 1 to 4 As shown, the utility model is a rainwater collection pool pre-well, including a well body 1 and a control system, the upper port of the well body 1 is provided with a grille manhole cover 1-2, the interior of the well body 1 is divided into a diversion chamber I and a discarded flow chamber II by a U-shaped partition wall 1-1, a filter assembly 2 is installed in the inner cavity of the U-shaped partition wall 1-1, a rainwater collection pipe 3 and an overflow pipe 11 are provided on the upper side of the outer peripheral wall of the well body 1, and the overflow pipe 11 is connected to the municipal rainwater pipeline at one end away from the well body 1, and a rainwater collection pipe 7 and a discarded flow pipe 9 are also provided on the upper side of the outer peripheral wall of the well body 1, which are connected to the discarded flow chamber II, and the end of the discarded flow pipe 9 away from the well body 1 is connected to the sewage well, and the end of the rainwater collection pipe 7 away from the well body 1 is connected to the rainwater collection pool 8, and a submersible sewage pump 4 electrically connected to the control system is installed at the bottom of the discarded flow chamber II, and the water outlet of the submersible sewage pump 4 is connected to the lower end of the lifting pipe 5;

[0034] When the soil covering depth h above the top of the rainwater collection pool 8 is ≤1.5m, one end of the rainwater collection pipe 7 connected to the well body 1 and one end of the waste flow pipe 9 connected to the well body 1 are connected to the upper end of the lifting pipe 5 through a three-way valve 6, and the three-way valve 6 is an electric valve or a solenoid valve electrically connected to the control system.

[0035] Preferably, the upper edge height of the filter assembly 2 is greater than the bottom elevation of the overflow pipe 11 and greater than the bottom elevation of the rainwater collecting pipe 3 .

[0036] Further preferably, the depth of the diversion chamber I is less than the depth of the discard chamber II.

[0037] Further preferably, a liquid level meter 10 electrically connected to the control system is also provided inside the discard chamber II.

[0038] Further preferably, the filter assembly 2 comprises a grid mesh 1 2-1 and a grid mesh 2-2 arranged in parallel at intervals, the aperture of the grid mesh 1 2-1 is greater than the aperture of the grid mesh 2-2, the grid mesh 1 2-1 is located on the side close to the diversion chamber I, and the grid mesh 2-2 is located on the side close to the discard chamber II.

[0039] Further preferably, two groups of U-shaped channel steels 2-3 are respectively provided on the vertical inner wall surfaces on both sides of the U-shaped partition wall 1-1, the vertical end edges on both sides of the grille mesh 1 2-1 are inserted into one group of corresponding U-shaped channel steels 2-3, and the vertical end edges on both sides of the grille mesh 2-2 are inserted into another group of corresponding U-shaped channel steels 2-3.

[0040] Further preferably, the aperture range of the grille mesh 1 2 - 1 is 10 to 40 mm, and the aperture range of the grille mesh 2 - 2 is 5 to 15 mm.

[0041] Further preferably, the upper edge of the grille mesh 1 2-1 and the upper edge of the grille mesh 2-2 are respectively provided with a hanging ring 2-4.

[0042] Further preferably, two or more submersible sewage pumps 4 are provided.

[0043] Further preferably, the cross section of the well body 1 is a rectangular structure, and the outer peripheral length of the cross section of the well body 1 is in the range of 2500±500mm and the outer peripheral width is in the range of 2000±500mm.

[0044] The working principle of the front well of a rainwater collection pool in the utility model:

[0045] At the beginning of rain, rainwater enters the well body 1 through the rainwater collection pipe 3, and the rainwater in the diversion chamber I is filtered through the grid net 1 2-1 and the grid net 2-2 in turn and enters the waste flow chamber II; when the amount of rainwater collected in the waste flow chamber II reaches the pump start water level, the control system sends a start command to the submersible sewage pump 4, the three-way valve 6 and the branch connected to the waste flow pipe 9, and the submersible sewage pump 4 pumps the rainwater in the waste flow chamber II into the sewage well through the lifting pipe 5 and the waste flow pipe 9; when the submersible sewage pump 4 reaches the set waste flow time or rainwater waste flow, the control system sends a start command to the three-way valve 6 and the waste flow pipe 9. 9 sends a closing command to one branch connected to the well body 1 and a starting command to the three-way valve 6 connected to the rainwater collecting pipe 7. The submersible sewage pump 4 pumps the rainwater inside the discard chamber II into the rainwater collecting pool 8 through the lifting pipe 5 and the rainwater collecting pipe 7. When the set pump start water level or the maximum rainwater collection volume of the rainwater collecting pool 8 is reached, the control system sends a closing command to the three-way valve 6 and the submersible sewage pump 4; if the maximum rainwater collection volume of the rainwater collecting pool 8 is reached and the rainwater level collected inside the well body 1 is still rising, the water inside the well body 1 flows into the municipal rainwater pipe through the overflow pipe 11.

[0046] Example 2

[0047] like Figures 5-6 As shown, the utility model is a rainwater collection pool pre-well, which is different from the rainwater collection pool pre-well in Example 1 in that the soil covering depth h above the top of the rainwater collection pool 8 is greater than 1.5m, and the end of the waste flow pipe 9 connected to the well body 1 is connected to the upper end of the lifting pipe 5.

[0048] The working principle of the front well of a rainwater collection pool in the utility model:

[0049] At the beginning of rain, rainwater enters the well body 1 through the rainwater collection pipe 3, and the rainwater in the diversion chamber I is filtered through the grid net 1 2-1 and the grid net 2-2 in turn and then enters the waste chamber II; when the amount of rainwater collected in the waste chamber II reaches the pump start water level, the control system sends a start command to the submersible sewage pump 4, and the submersible sewage pump 4 pumps the rainwater in the waste chamber II into the sewage well through the lifting pipe 5 and the waste pipe 9; when the submersible sewage pump 4 reaches the set waste flow time or rainwater waste flow, the control system The system sends a closing command to the submersible sewage pump 4, and the rainwater collected in the well body 1 continues to rise. When the water level of the rainwater collected in the well body 1 reaches the bottom elevation of the rainwater collecting pipe 7, the rainwater collected in the well body 1 overflows through the rainwater collecting pipe 7 into the rainwater collecting pool 8; if the maximum rainwater collection capacity of the rainwater collecting pool 8 is reached and the water level of the rainwater collected in the well body 1 is still rising, the water in the well body 1 flows into the municipal rainwater pipe through the overflow pipe 11, and the submersible sewage pump 4 only has the function of discarding the flow.

[0050] The utility model discloses a rainwater collection pool pre-well, which divides the internal space of the well body into a diversion chamber and a discard chamber by a partition wall with a filtering component, and provides a submersible sewage pump electrically connected to the control system inside the discard chamber, so that the rainwater collection pool pre-well of the utility model has multiple functions such as safe diversion, sewage interception, discard, lifting, and visualization. Among them, the visualization is that the situation inside the well body can be observed through the grille well cover, thereby realizing the collection of well bodies with different functions such as safe diversion well, sewage interception hanging basket well, discard filter well, and lifting well. It occupies a small area, is conducive to improving the greening and aesthetic effect, is easy to maintain, and is economical and practical.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rainwater collection pool front well, characterized in that: The invention comprises a well body (1) and a control system, wherein the upper end of the well body (1) is provided with a grille manhole cover (1-2), the interior of the well body (1) is divided into a diversion chamber (I) and a discarding chamber (II) by a U-shaped partition wall (1-1), a filter assembly (2) is installed in the inner cavity of the U-shaped partition wall (1-1), and a rainwater collection pipe (3) and an overflow pipe (11) which are connected to the diversion chamber (I) are provided on the upper side of the outer peripheral wall of the well body (1), and the overflow pipe (11) is connected to the end away from the well body (1). The well body (1) is connected to a municipal rainwater pipeline. A rainwater collection pipe (7) and a waste flow pipe (9) which are connected to the waste flow chamber (II) are also provided on the upper side of the outer peripheral wall of the well body (1). The end of the waste flow pipe (9) which is away from the well body (1) is connected to a sewage well. The end of the rainwater collection pipe (7) which is away from the well body (1) is connected to a rainwater collection pool (8). A submersible sewage pump (4) which is electrically connected to a control system is installed at the bottom of the waste flow chamber (II). The water outlet of the submersible sewage pump (4) is connected to the lower end of the lifting pipe (5). When the soil cover depth h above the top of the rainwater collection pool (8) is less than or equal to 1.5 m, one end of the rainwater collection pipe (7) connected to the well body (1) and one end of the waste flow pipe (9) connected to the well body (1) are connected to the upper end of the lifting pipe (5) through a three-way valve (6), and the three-way valve (6) is an electric valve or a solenoid valve electrically connected to the control system; When the soil depth h above the top of the rainwater collection pool (8) is greater than 1.5 m, the end of the waste flow pipe (9) connected to the well body (1) is connected to the upper end of the lifting pipe (5).

2. The rainwater collection pool pre-well as claimed in claim 1, characterized in that: The upper edge height of the filtering assembly (2) is greater than the bottom elevation of the overflow pipe (11) and greater than the bottom elevation of the rainwater collecting pipe (3).

3. The rainwater collection pool pre-well as claimed in claim 2, characterized in that: The depth of the diversion chamber (Ⅰ) is less than the depth of the discarding chamber (Ⅱ).

4. The rainwater collection pool front well as claimed in claim 3, characterized in that: A liquid level meter (10) electrically connected to the control system is also provided inside the waste flow chamber (II).

5. The rainwater collection pool pre-well as claimed in claim 4, characterized in that: The filter assembly (2) comprises a grid mesh 1 (2-1) and a grid mesh 2 (2-2) which are arranged in parallel at intervals, the aperture of the grid mesh 1 (2-1) being greater than the aperture of the grid mesh 2 (2-2), the grid mesh 1 (2-1) being located on a side close to the diversion chamber (I), and the grid mesh 2 (2-2) being located on a side close to the discard chamber (II).

6. The rainwater collection pool front well as claimed in claim 5, characterized in that: Two groups of U-shaped channel steels (2-3) are respectively provided on the vertical inner wall surfaces on both sides of the U-shaped partition wall (1-1), the vertical end edges on both sides of the grille mesh 1 (2-1) are inserted into the inside of one group of corresponding U-shaped channel steels (2-3), and the vertical end edges on both sides of the grille mesh 2 (2-2) are inserted into the inside of the other group of corresponding U-shaped channel steels (2-3).

7. The rainwater collection pool front well as claimed in claim 6, characterized in that: The aperture range of the grid mesh 1 (2-1) is 10 to 40 mm, and the aperture range of the grid mesh 2 (2-2) is 5 to 15 mm.

8. The rainwater collection pool front well as claimed in claim 7, characterized in that: The upper end edges of the grille mesh 1 (2-1) and the upper end edges of the grille mesh 2 (2-2) are respectively provided with hanging rings (2-4).

9. The rainwater collection pool pre-well according to any one of claims 1 to 8, characterized in that: More than two submersible sewage pumps (4) are provided.

10. The rainwater collection pool front well as claimed in claim 9, characterized in that: The cross section of the well body (1) is a rectangular structure, and the outer peripheral length of the cross section of the well body (1) is in the range of 2500±500mm and the outer peripheral width is in the range of 2000±500mm.

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