Return and overflow prevention drainage inspection well
By designing an anti-overflow drainage inspection well, using a combined structure of anti-overflow float ball and anti-overflow plate, the problem of overflow and overflow recovery in the inspection well when rainfall is high is solved, effective drainage management is achieved, and urban appearance and facilities are protected.
Patent Information
- Application Number
- CN202420972308.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The inspection well overflows or overflows when the rainfall is heavy, resulting in serious impact on the city's appearance and facilities.
A well anti-overflow drainage inspection well is designed, including the well body, manhole cover, maintenance rope, anti-overflow plate, anti-overflow float and float support rod. The anti-overflow floating ball can block the anti-overflow hole and prevent the water from overflowing.
Effectively prevent overflow and overflow from inspection wells, ensure that rainwater can be discharged smoothly, and avoid secondary flood disasters and damage to urban facilities.
Smart Images
Figure CN222614477U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of municipal drainage, and in particular relates to an anti-overflow drainage inspection well. Background Art
[0002] Inspection wells are important facilities for connecting pipelines in urban water supply. However, when the rainfall is heavy, due to excessive water inflow from upstream and limited discharge capacity from downstream, or the lack of discharge conditions at the downstream outlet, the inspection wells overflow and cause secondary flood disasters. Or, due to rising water levels in the discharge area, rainwater backflows and the inspection wells overflow, causing serious impacts on the city's appearance and urban facilities. Utility Model Content
[0003] In order to solve the problem of overflow and backflow of inspection wells, the utility model provides an anti-backflow drainage inspection well.
[0004] An anti-backflow drainage inspection well is arranged between an upstream drainage pipe and a downstream drainage pipe, and is characterized in that it comprises a well body, a well cover, an inspection rope, an anti-backflow plate, an anti-backflow float and a float support rod; the well body is arranged below the road surface, the upstream drainage pipe and the downstream drainage pipe are both connected to the bottom of the well body, two parallel float support rods are arranged horizontally in the middle of the well body, an anti-backflow float is arranged above the float support rod, the diameter of the anti-backflow float is larger than the distance between the two float support rods and the distance between the float support rod and the well wall, two anti-backflow plates are symmetrically arranged above the anti-backflow float, one end of the anti-backflow plate is fixed by rotating through a hinge It is fixed on the inner wall of the well body, and a limit buckle is provided on the hinge. When the anti-backflow plate is rotated to the horizontal, it is limited by the limit buckle and can no longer rotate upward. A maintenance rope is tied to the other end of the anti-backflow plate, and the other end of the maintenance rope is fixed to the inner wall of the well body above the hinge through a hanging buckle. The anti-backflow plate tied with the maintenance rope remains horizontal, and semicircular holes are symmetrically opened in the middle of the end of the anti-backflow plate that is close to each other. When the two anti-backflow plates are in a horizontal state, they are butted against each other and the semicircular holes form a circular anti-backflow hole. The diameter of the anti-backflow hole is smaller than the diameter of the anti-backflow float. The well cover is arranged on the top of the well body, and a number of water inlet holes are opened on the well cover.
[0005] Furthermore, the anti-overflow float is an inflatable sphere.
[0006] The beneficial effect of the utility model is that rainwater from the road surface can enter the well body through the water inlet hole on the well cover. When the well body is inspected, the inspection rope is manually untied and tied to one end of the anti-overflow plate, so that one end of the anti-overflow plate naturally hangs down, forming enough space for people to go down the well for inspection. After the two anti-overflow plates are closed, an anti-overflow hole is formed in the middle. A limit buckle is provided on the hinge, so that the anti-overflow plate can be opened naturally downward but cannot be opened upward. When the amount of water in the well body is small, the anti-overflow float falls on the float support rod, and the water on the road surface can flow into the lower part of the well body through the anti-overflow hole and be discharged along the pipeline; when the rainfall is too large and the downstream drainage pipe is not discharged in time, that is, the water inflow of the upstream drainage pipe is greater than the water volume of the downstream drainage pipe, there is too much water in the well, and when the anti-overflow float floats up, it can be driven by the water flow to block the anti-overflow hole, preventing the water from overflowing the well cover and causing overflow. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 The present invention is a schematic diagram of the structure of an anti-backflow drainage inspection well.
[0008] Figure 2 A three-dimensional schematic diagram of the anti-overflow float and the float support rod.
[0009] Figure 3 Schematic diagram of the arrangement when the anti-overflow plate is closed.
[0010] Among them: 1-upstream drainage pipe, 2-downstream drainage pipe, 3-well body, 4-well cover, 41-water inlet, 5-maintenance rope,
[0011] 6-hook, 7-anti-overflow plate, 71-anti-overflow hole, 8-hinge, 9-anti-overflow float, 10-float support rod. DETAILED DESCRIPTION
[0012] Embodiment 1: An anti-backflow drainage inspection well is arranged between an upstream drainage pipe 1 and a downstream drainage pipe 2. The inspection well includes a well body 3, a well cover 4, a maintenance rope 5, an anti-backflow plate 7, an anti-backflow float 9 and a float support rod 10. The well body 3 is arranged below the road surface, and its inner diameter is 1.0m. The upstream drainage pipe 1 and the downstream drainage pipe 2 are both connected to the bottom of the well body 3. Two parallel float support rods 10 are arranged horizontally in the middle of the well body 3, and the distance between the two float support rods 10 is 0.6m. An anti-backflow float is arranged above the float support rod 10, and the diameter of the anti-backflow float 9 is 0.8m. Two anti-overflow plates 7 are symmetrically arranged above the anti-overflow float 9. One end of the anti-overflow plate 7 is rotatably fixed to the inner wall of the well body 3 through a hinge 8. A limit buckle is arranged on the hinge 8. When the anti-overflow plate 7 is turned to the horizontal, it is limited by the limit buckle and cannot continue to rotate upward. The other end of the anti-overflow plate 7 is tied with an inspection rope 5, and the other end of the inspection rope 5 is fixed to the inner wall of the well body 3 above the hinge 8 through a hanging buckle 6. The anti-overflow plate 7 with the inspection rope 5 is kept horizontal. Semicircular holes are symmetrically opened in the middle of the adjacent ends of the anti-overflow plate 7. When the two anti-overflow plates 7 are in a horizontal state, they are butted against each other and the semicircular holes form a circular anti-overflow hole 71 with a diameter of 0.4m. The manhole cover 4 is arranged at the top of the well body 3, and a plurality of water inlet holes 41 are opened on the manhole cover 4.
[0013] Normally, the inspection rope 5 is tied to the anti-backflow plate 7 to keep the anti-backflow plate 7 in a horizontal state. When the amount of water in the well body 3 is small, the anti-backflow float 9 falls on the float support rod 10, and the rainwater on the road can flow into the well body 3 from the water inlet 41 on the manhole cover 4 and flow into the lower part of the well body through the anti-backflow hole 71 and be discharged along the pipeline. When the rainfall is too large and the downstream drainage pipe 2 is not discharged in time, that is, the water inflow of the upstream drainage pipe 1 is greater than the water volume of the downstream drainage pipe 2, there is too much water in the well. When the anti-backflow float 9 floats up, it can block the anti-backflow hole 71 through the water flow to prevent the water from overflowing the manhole cover 4 and causing backflow. When maintenance is needed, the worker goes down the well to untie the inspection rope 5 tied to the anti-backflow plate 7, so that one end of the anti-backflow plate 7 naturally hangs down, forming enough space for people to go down the well for maintenance.
Claims
1. An anti-overflow drainage inspection well, arranged between an upstream drainage pipe and a downstream drainage pipe, characterized in that: It includes a well body, a well cover, an inspection rope, an anti-backflow plate, an anti-backflow float and a float support rod; the well body is set below the road surface, the upstream drainage pipe and the downstream drainage pipe are connected to the bottom of the well body, two parallel float support rods are horizontally set in the middle of the well body, an anti-backflow float is set above the float support rod, the diameter of the anti-backflow float is larger than the distance between the two float support rods and the distance between the float support rod and the well wall, two anti-backflow plates are symmetrically set above the anti-backflow float, one end of the anti-backflow plate is rotatably fixed to the well body wall through a hinge, and a limit buckle is provided on the hinge When the anti-backflow plate rotates to the horizontal, it is limited by the limit buckle and cannot continue to rotate upward. A maintenance rope is tied to the other end of the anti-backflow plate, and the other end of the maintenance rope is fixed to the wall of the well body above the hinge through a hanging buckle. The anti-backflow plate tied with the maintenance rope remains horizontal, and semicircular holes are symmetrically opened in the middle of the adjacent end of the anti-backflow plate. When the two anti-backflow plates are in a horizontal state, they are butted against each other and the semicircular holes form a circular anti-backflow hole. The diameter of the anti-backflow hole is smaller than the diameter of the anti-backflow float. The well cover is arranged at the top of the well body, and a number of water inlet holes are opened on the well cover.
2. The anti-overflow drainage inspection well according to claim 1, characterized in that The anti-overflow floating ball is an inflatable sphere.