All-plastic combined type intercepting well

Abstract

The utility model discloses an all-plastic combined type catch basin, which structurally comprises a sewage storage tank and a transfer tank, a large wellhead and a small wellhead are arranged at the top of the sewage storage tank, a sewage inlet and a sewage outlet are arranged on the tank wall of the sewage storage tank, a sewage lifting pump is arranged in the sewage storage tank, a crushing type grillage machine is arranged in the sewage inlet, an access hole is arranged at the top of the transfer tank, and the access hole is communicated with the sewage storage tank. The tank wall of the transfer tank is provided with a sewage inlet port and a sewage discharge port, the sewage discharge port and the sewage inlet port are hermetically communicated to form a sewage discharge channel, and the sewage lift pump penetrates through the sewage discharge channel through a pipeline and extends into the transfer tank to discharge sewage; therefore, the plurality of sewage storage tanks are combined through the transfer tank, so that a small amount of sewage collected and discharged into the sewage from each sewage storage tank can be deposited in the transfer tank and then discharged into the main sewage discharge pipeline through the sewage discharge port, thereby avoiding deposition and blockage, and the overhaul port facilitates the overhaul and desilting of the transfer tank; meanwhile, the smashing type grillage machine and the sewage lifting pump are installed in the sewage storage tank, and great convenience is brought to sewage discharging.

Description

Technical Field

[0001] The utility model relates to a cut-off well, in particular to a fully plastic combined cut-off well. Background Art

[0002] Cut-off wells are mainly used in rain-sewage combined systems, and their purpose is to separate rainwater and sewage. During the dry season, since there is only sewage in the sewage inlet pipe, the cut-off well can intercept the sewage and flow it into the sewage discharge pipe; during the rainy season, part of the rainwater and sewage can be intercepted and flow into the sewage discharge pipe, but the remaining rainwater overflows through the weir in the well and continues to flow downstream. At present, the cut-off wells manufactured by the rotational molding process are all fully plastic-structured sewage storage tanks. In actual use, the sewage discharge ports of individual storage tanks are converged into a total sewage discharge pipeline for centralized sewage discharge. For example, each household in a village has a sewage storage tank dedicated to discharging its own sewage, and these sewage storage tanks in the entire village are then centrally discharged through a total sewage discharge pipeline. However, although the sewage mixture discharged from each household into the storage tank has undergone a sedimentation process, there will still be a small amount of dirt sediment in the sewage discharged from each storage tank into the total sewage discharge pipeline. After long-term use, especially during the dry season, these sedimented dirt will block the total sewage discharge pipeline. Since the total sewage discharge pipeline is relatively long, it is often very difficult to determine the internal blockage point and timely carry out dredging, which brings great trouble to the use; at the same time, the structural design of the existing storage tank is also very simple, only the sewage inlet and the sewage discharge port are designed on the storage tank. In actual use, a crushing grille machine needs to be additionally installed on the sewage inlet pipe or a sewage lift pump needs to be configured separately to treat the sewage in the storage tank, which also brings trouble to the use. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a fully plastic combined cut-off well that can avoid sediment blockage and is convenient to use.

[0004] The technical problem of the utility model is realized through the following technical solutions:

[0005] A fully plastic combined cut-off well includes a sewage storage tank and a transfer tank.

[0006] The top of the sewage storage tank is provided with a large wellhead and a small wellhead. The tank wall of the sewage storage tank is provided with a sewage inlet and a sewage discharge port. A sewage lift pump is installed in the sewage storage tank, and a crushing grille machine is installed in the sewage inlet.

[0007] The top of the transfer tank is provided with a maintenance port. The tank wall of the transfer tank is provided with a sewage inlet interface and a sewage discharge interface.

[0008] The sewage discharge port of the sewage storage tank is hermetically connected to the sewage inlet interface of the transfer tank to form a sewage discharge channel.

[0009] The described sewage lift pump discharges sewage through a pipeline that passes through the sewage discharge channel and extends into the transfer tank.

[0010] A hot melt sleeve is provided between the described sewage discharge port and the sewage inlet interface, and the sewage discharge port and the sewage inlet interface are heat-melted into one body by the hot melt sleeve to form a sealed connection.

[0011] The pipeline passes through the sewage discharge channel and extends into the transfer tank to install a flexible connection flange, and a valve is installed on the flexible connection flange.

[0012] A plurality of interfaces evenly distributed in a circle are provided on the tank wall of the described transfer tank, and one of the interfaces is set as the sewage discharge interface, and the remaining interfaces are set as sewage inlet interfaces. Each sewage inlet interface can be hermetically connected to the sewage discharge port of a storage tank.

[0013] The described storage tank is integrally rotomolded from a spherical top shell, a cylindrical middle shell, and a spherical bottom shell. The large wellhead and the small wellhead are arranged at the top of the spherical top shell. The sewage inlet is arranged on the outer surface of the bottom of the cylindrical middle shell, and the sewage discharge port is arranged on the outer surface of the top of the cylindrical middle shell. A support base is provided at the bottom of the spherical bottom shell.

[0014] A plurality of solid vertical ribs evenly distributed in a circle and a plurality of solid ring ribs arranged sequentially from top to bottom are provided on the outer surface of the described storage tank. The top end of each solid vertical rib extends to the large wellhead, and the bottom end extends to the support base. Each solid ring rib intersects with each solid vertical rib integrally.

[0015] A plurality of reserved side mounting platforms evenly distributed in a circle are provided on the outer surface of the spherical top shell. A plurality of reserved mounting surfaces evenly distributed in a circle are provided on the outer surface of the top and bottom of the cylindrical middle shell.

[0016] The described transfer tank is integrally rotomolded from a spherical top shell and a flat bottom shell. The inspection port is arranged at the top of the spherical top shell. The sewage inlet interface and the sewage discharge interface are both arranged on the outer surface of the spherical top shell. The sewage inlet interface and the sewage discharge interface are on the same horizontal plane and a height is reserved between them and the flat bottom shell.

[0017] A reserved top mounting platform is provided at the top of the spherical top shell.

[0018] A plurality of solid vertical ribs evenly distributed in a circle and a plurality of solid ring ribs arranged sequentially from top to bottom are provided on the outer surface of the described transfer tank. The top end of each solid vertical rib extends to the inspection port, and the bottom end extends to the flat bottom shell. Each solid ring rib intersects with each solid vertical rib integrally.

[0019] Compared with the prior art, the utility model mainly adopts a combined structure of a sewage storage tank and a transfer tank for the intercepting well. A large wellhead and a small wellhead are provided at the top of the sewage storage tank. An inlet and a sewage outlet are provided on the tank wall of the sewage storage tank. A sewage lift pump is installed in the sewage storage tank, and a crushing grille machine is installed in the inlet. An inspection port is provided at the top of the transfer tank, and an inlet connection and a sewage outlet connection are provided on the tank wall of the transfer tank. The sewage outlet of the sewage storage tank is hermetically connected to the inlet connection of the transfer tank to form a sewage discharge channel. The sewage lift pump passes through the sewage discharge channel through a pipeline and extends into the transfer tank to discharge sewage. In this way, through the design of the transfer tank, multiple sewage storage tanks can be combined first, that is, multiple sewage storage tanks can first merge and discharge sewage into the transfer tank. This enables a small amount of dirt existing in the sewage discharged from each sewage storage tank to be deposited in the transfer tank first, and then discharged into the main sewage pipeline through the sewage outlet connection of the transfer tank. Therefore, even if there are a large number of sewage storage tanks, they can be grouped and discharged through several transfer tanks. The inspection port at the top of the transfer tank also facilitates maintenance and dredging, effectively preventing sediment blockage caused by sediment discharged into the main sewage pipeline. At the same time, the installation of a crushing grille machine and a sewage lift pump in the sewage storage tank also brings great convenience to sewage discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the utility model.

[0021] Figure 2 is Figure 1 the top view of.

[0022] Figure 3 is Figure 2 the A-A cross-sectional view of.

[0023] Figure 4 is Figure 1 the three-dimensional view of. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The embodiments of the utility model will be further described in detail with reference to the above drawings.

[0025] As Figures 1 to 4 shown, 1. Sewage storage tank, 11. Spherical top shell, 111. Small wellhead, 112. Large wellhead, 113. Reserved side installation platform, 12. Cylindrical middle shell, 121. Reserved installation surface, 122. Inlet, 123. Sewage outlet, 13. Spherical bottom shell, 14. Support base, 141. Reinforcement hole, 2. Transfer tank, 21. Flat bottom shell, 22. Inspection port, 23. Reserved top installation platform, 24. Inlet connection, 25. Sewage outlet connection, 3. Crushing grille machine, 4. Solid vertical rib, 5. Solid ring rib, 6. Sewage lift pump, 61. Pipeline, 62. On-off valve group, 63. Flexible connection flange, 64. Valve, 7. Heat fusion sleeve.

[0026] A fully plastic combined intercepting well, asFigure 1 , Figure 4 As shown in and

[0027] , it is mainly applied in the rain and sewage combined flow system. This intercepting well adopts a combined structure of a sewage storage tank 1 and a transfer tank 2.

[0027] The described sewage storage tank 1 is a capsule-shaped structure integrally formed by rotational molding of a spherical top shell 11, a cylindrical middle shell 12, and a spherical bottom shell 13. At the top of this sewage storage tank 1, that is, at the top of the spherical top shell 11, there are a large wellhead 112 and a small wellhead 111. The large wellhead 112 is mainly used to facilitate the loading or maintenance of the sewage lift pump 6 and the crushing grille machine 3, and the small wellhead 111 can be used to observe the internal situation of the sewage storage tank 1.

[0028] On the outer surface of the described spherical top shell 11, there are a plurality of circumferentially evenly distributed reserved side mounting platforms 113. On the outer surfaces of the top and bottom of the cylindrical middle shell 12, there are a plurality of circumferentially evenly distributed reserved mounting surfaces 121. These reserved side mounting platforms 113 and reserved mounting surfaces 121 can install other components or connect other devices according to actual usage needs.

[0029] On the tank wall of the described sewage storage tank 1, there are a sewage inlet 122 and a sewage outlet 123. Specifically, the sewage inlet 122 is arranged on the outer surface of the bottom of the cylindrical middle shell 12. The crushing grille machine 3 is installed inside the sewage inlet 122, that is, the crushing grille machine is built into the sewage storage tank 1 and can pre-crush the sewage mixture entering the sewage inlet 122, while the sewage outlet 123 is arranged on the outer surface of the top of the cylindrical middle shell 12.

[0030] At the bottom of the described spherical bottom shell 13, there is a cylindrical support base 14, which can be used to support the entire sewage storage tank 1. On the outer surface of the support base 14, there are several reinforcement holes 141 for fixing with the cement foundation during underground burial. The bottom surface of the spherical bottom shell 13 can also be provided with an inward concave reinforcement structure to enhance the structural strength.

[0031] On the outer surface of the described sewage storage tank 1, there are a plurality of circumferentially evenly distributed solid vertical ribs 4 and a plurality of solid ring ribs 5 arranged sequentially from top to bottom. The top end of each solid vertical rib 4 extends to the large wellhead 112, and the bottom end extends to the support base 14. Each solid ring rib 5 intersects with each solid vertical rib 4 in a continuous manner. Therefore, through the design of multiple solid vertical ribs 4 and multiple solid ring ribs 5, the structural strength of the sewage storage tank 1 is enhanced.

[0032] The described transfer tank 2 is a hemispherical structure integrally formed by rotational molding of a spherical top shell 11 and a flat bottom shell 21. At the top of this transfer tank 2, that is, at the top of the spherical top shell 11, there is an inspection opening 22, which can facilitate maintenance and dredging inside the transfer tank 2. On the top of the spherical top shell 11, there is also a reserved top mounting platform 23, which can install other components or connect other devices according to actual usage needs.

[0033] On the outer surface of the transfer tank 2, there are multiple solid vertical ribs 4 evenly distributed in a circumferential manner and multiple solid ring ribs 5 arranged successively from top to bottom. The top end of each solid vertical rib 4 extends to the maintenance opening 22, and the bottom end extends to the flat bottom shell 21. Each solid ring rib 5 intersects with each solid vertical rib 4 in a continuous manner. Therefore, through the design of multiple solid vertical ribs 4 and multiple solid ring ribs 5, the structural strength of the transfer tank 2 is enhanced.

[0034] On the tank wall of the transfer tank 2, there are a sewage inlet interface 24 and a sewage discharge interface 25. Specifically, on the outer surface of the spherical top shell 11, there are multiple interfaces evenly distributed in a circumferential manner. The interface is in the shape of a horizontally protruding transverse cylinder, and one of the interfaces is set as the sewage discharge interface 25, which can be used to connect to the main sewage discharge pipeline, and the remaining interfaces are set as sewage inlet interfaces 24. Each sewage inlet interface can be hermetically connected to the sewage discharge port 123 of a storage tank 1, thereby forming a combined structure in which multiple storage tanks 1 share one transfer tank 2. In this embodiment, Figure 2 as shown in the figure, 7 sewage inlet interfaces and 1 sewage discharge interface are designed, that is, 7 storage tanks can be connected to this transfer tank 2. These sewage inlet interfaces 24 and sewage discharge interface 25 are all at the same horizontal plane, and a height is reserved between them and the flat bottom shell 21 to facilitate the deposition of dirt and prevent the deposition blockage caused by the direct discharge of dirt into the main sewage discharge pipeline.

[0035] Meanwhile, Figure 2 taking the structure in which only one sewage inlet interface 24 is externally connected to a storage tank 1 as an example, a hot melt sleeve 7 is provided between the sewage discharge port 123 and the sewage inlet interface 24, and the sewage discharge port 123 and the sewage inlet interface 24 are hot melted into one body and hermetically connected by this hot melt sleeve, that is, the sewage discharge port 123 of the storage tank 1 is hermetically connected to the sewage inlet interface 24 of the transfer tank 2 to form a sewage discharge channel.

[0036] In this way, through the design of the transfer tank 2, multiple storage tanks 1 can be combined first, that is, multiple storage tanks can first combine and discharge sewage into the transfer tank 2. This enables the small amount of dirt existing in the sewage discharged from each storage tank 1 to be deposited in the transfer tank 2 first, and then discharged into the main sewage discharge pipeline through the sewage discharge interface 25 of the transfer tank. Therefore, even if there are a large number of storage tanks 1, they can be grouped and discharged through several transfer tanks 2.

[0037] A sewage lifting pump 6 is installed in the storage tank 1. The sewage lifting pump discharges sewage through a pipeline 61 passing through the sewage discharge channel and extending into the transfer tank 2. Usually, the pipeline 61 is passed through the sewage discharge channel and extended into the transfer tank 2, and a flexible connection flange 63 is installed first, and then a valve 64 is installed on this flexible connection flange. The function of this valve is to be temporarily closed during the maintenance or dredging of the transfer tank 2.

[0038] In addition, an opening and closing valve group 62 also needs to be installed on the pipeline 61 located in the storage tank 1, which is mainly used to conveniently close the pipeline 61 temporarily during the maintenance of the sewage lifting pump 6.

[0039] Therefore, a crushing grille machine 3 and a sewage lift pump 6 are installed in the sewage storage tank 1, which also brings great convenience to sewage discharge.

[0040] The above are only specific embodiments of the present invention. Those skilled in the art should understand that any structural design equivalent to this embodiment should be included within the protection scope of the present invention.

Claims

1. A fully plastic combined intercepting well, characterized in that, It includes a sewage storage tank (1) and a transfer tank (2). The top of the described sewage storage tank (1) is provided with a large wellhead (112) and a small wellhead (111). The tank wall of the sewage storage tank (1) is provided with a sewage inlet (122) and a sewage outlet (123). A sewage lift pump (6) is installed inside the sewage storage tank (1). A crushing grille machine (3) is installed inside the sewage inlet (122). The top of the described transfer tank (2) is provided with a maintenance opening (22). The tank wall of the transfer tank (2) is provided with a sewage inlet interface (24) and a sewage outlet interface (25). The sewage outlet (123) of the described sewage storage tank (1) is hermetically connected to the sewage inlet interface (24) of the transfer tank (2) to form a sewage discharge channel. The described sewage lift pump (6) passes through the sewage discharge channel via a pipeline (61) and extends into the transfer tank (2) for sewage discharge.

2. The all-plastic combined intercepting well according to claim 1, characterized in that A hot melt sleeve (7) is provided between the sewage outlet (123) and the sewage inlet interface (24), and the sewage outlet (123) and the sewage inlet interface (24) are hot melted together by the hot melt sleeve to form a sealed connection.

3. The all-plastic combined intercepting well according to claim 1, characterized in that The pipeline (61) passes through the sewage discharge channel and extends into the transfer tank (2) to install a flexible connection flange (63), and a valve (64) is installed on the flexible connection flange.

4. The all-plastic combined intercepting well according to claim 1, characterized in that The tank wall of the described transfer tank (2) is provided with a plurality of interfaces evenly distributed in a circumferential manner, and one of the interfaces is set as the sewage outlet interface (25), and the rest of the interfaces are set as sewage inlet interfaces (24). Each sewage inlet interface can be hermetically connected to the sewage outlet (123) of a sewage storage tank (1).

5. A fully plastic combined intercepting well according to claim 1, characterized in that The described sewage storage tank (1) is integrally rotomolded from a spherical top shell (11), a cylindrical middle shell (12), and a spherical bottom shell (13). The large wellhead (112) and the small wellhead (111) are arranged on the top of the spherical top shell (11). The sewage inlet (122) is arranged on the outer surface of the bottom of the cylindrical middle shell (12). The sewage outlet (123) is arranged on the outer surface of the top of the cylindrical middle shell (12). A support base (14) is provided at the bottom of the spherical bottom shell (13).

6. The all-plastic combined intercepting well according to claim 5, characterized in that The outer surface of the described sewage storage tank (1) is provided with a plurality of solid vertical ribs (4) evenly distributed in a circumferential manner and a plurality of solid ring ribs (5) arranged successively from top to bottom. The top end of each solid vertical rib (4) extends to the large wellhead (112), and the bottom end extends to the support base (14). Each solid ring rib (5) intersects with each solid vertical rib (4) integrally.

7. The all-plastic combined intercepting well according to claim 5, characterized in that The outer surface of the spherical top shell (11) is provided with a plurality of reserved side mounting platforms (113) evenly distributed in a circumferential manner. The outer surfaces of the top and bottom of the cylindrical middle shell (12) are both provided with a plurality of reserved mounting surfaces (121) evenly distributed in a circumferential manner.

8. The all-plastic combined intercepting well according to claim 1, characterized in that The described transfer tank (2) is integrally rotomolded from a spherical top shell (11) and a flat bottom shell (21). The maintenance opening (22) is arranged on the top of the spherical top shell (11). The sewage inlet interface (24) and the sewage outlet interface (25) are both arranged on the outer surface of the spherical top shell (11). The sewage inlet interface (24) and the sewage outlet interface (25) are on the same horizontal plane and there is a reserved height between them and the flat bottom shell (21).

9. The all-plastic combined intercepting well according to claim 8, characterized in that The top of the spherical top shell (11) is provided with a reserved top mounting platform (23).

10. The all-plastic modular intercepting well according to claim 8, characterized in that A plurality of solid vertical ribs (4) evenly distributed in a circumferential direction and a plurality of solid ring ribs (5) sequentially arranged from top to bottom are provided on the outer surface of the transfer tank (2); the top end of each solid vertical rib (4) extends to the maintenance opening (22), and the bottom end extends to the flat bottom shell (21); each solid ring rib (5) is integrally intersected with each solid vertical rib (4).

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