Urban drainage structure convenient to overhaul
By setting up special inspection wells and step projections arranged in the vertical direction in the urban drainage system, the problem of workers having to bend down and using ropes to enter the vertical wells is solved, and the maintenance process is convenient and easy. cost reduction effect.
Patent Information
- Application Number
- CN202421220810.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the maintenance of urban drainage systems, workers need to enter vertical wells and horizontal sewer pipes through narrow spaces, which leads to inconvenience in bending over inspection, and to use ropes and other tools to enter or leave the vertical well, which is more troublesome.
An urban drainage structure is designed to facilitate maintenance. A special inspection well is set up to connect the drainage pipes at both ends, and a number of step protrusions arranged at equal intervals in the vertical direction are provided on the cavity wall of the inspection well. Workers can pass through these steps. The bulge gradually goes down to the bottom wall of the inspection well, making it easier to access the pipeline for maintenance.
This structure allows workers to easily access the drainage pipeline for maintenance, reduces dependence on lifting equipment, improves maintenance efficiency, and reduces costs.
Smart Images
Figure CN222375599U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of municipal drainage, and in particular to an urban drainage structure that is easy to inspect and maintain. Background Art
[0002] The urban drainage system is an engineering facility system for treating and removing urban sewage and rainwater, and is a component of urban public facilities. The urban drainage system planning is a component of the city's overall planning. The urban drainage system is usually composed of drainage pipes and sewage treatment plants. In the case of sewage and rainwater diversion, sewage is collected by drainage pipes, sent to sewage treatment, and then discharged into water bodies or recycled; rainwater runoff is collected by drainage pipes and discharged into nearby water bodies.
[0003] Common urban drainage pipes need regular inspections. During inspections, workers will enter the vertical well from the manhole cover and then enter the sewer pipe for routine inspections. However, due to the narrow space at the connection between the vertical well and the horizontal sewer pipe, workers need to bend over the entire time when entering the sewer pipe from the vertical well, which causes inconvenience to the inspection. In addition, workers need to be hoisted in or out of the vertical well with the help of ropes and other tools, which is rather troublesome and needs to be improved. Utility Model Content
[0004] In order to facilitate workers to enter the drainage pipe, the present application provides an urban drainage structure that is easy to inspect and repair.
[0005] The present application provides an urban drainage structure that is easy to maintain, which adopts the following technical solution:
[0006] A city drainage structure that is easy to maintain, comprising an underground drainage pipe, an underground inspection well and a sealing layer arranged on a road surface, wherein a first connection port and a second connection port are provided on both sides of the inspection well, the first connection port and the second connection port are both for connection with the drainage pipe, the first connection port is used for water inlet, and the second connection port is used for water outlet; the sealing layer is located on the top surface of the inspection well, the inspection well is provided with an active cavity, an inspection port is provided on the sealing layer, the inspection port is communicated with the active cavity, and a sealing well cover is provided at the inspection port; a plurality of step protrusions are provided on the cavity wall of the active cavity, the step protrusions are arranged at equal intervals in the vertical direction, and the inspection port is located directly above the step protrusions.
[0007] By adopting the above technical solution, a special inspection well is set up to connect the drainage pipes at both ends. When entering the inspection well, the person gradually descends from the inspection port to the bottom wall of the movable cavity through the vertically arranged step protrusions, and then conveniently enters any pipe at both ends for maintenance. After the maintenance is completed, the sealed well cover is covered again. Compared with the method of hoisting the maintenance personnel into the inspection well with the help of lifting equipment, the urban drainage structure that is easy to maintain can gradually descend to the inspection well through the step protrusions, which is more convenient and has lower cost.
[0008] Optionally, the sealing layer includes a sealing diaphragm layer arranged on the inspection well, a prefabricated cement reinforcement layer arranged on the sealing diaphragm, and an original soil layer arranged on the prefabricated cement reinforcement layer, and the inspection port passes through the sealing layer.
[0009] By adopting the above technical solution, a sealing layer is set to seal the inspection well and ensure the normal driving of vehicles. By setting a prefabricated cement steel layer, the strength of the road surface is increased and the service life of the road surface is extended.
[0010] Optionally, an installation groove is opened on the original soil layer, a prefabricated manhole ring is provided in the installation groove, and the sealing manhole cover is installed on the prefabricated manhole ring.
[0011] By adopting the above technical solution, an installation groove is set to install a prefabricated manhole ring for subsequent sealing manhole cover installation. By setting the prefabricated manhole ring, the tightness of the connection between the road surface around the sealing manhole cover and the sealing manhole cover is increased, preventing potholes and the like from appearing prematurely on the road surface around the sealing manhole cover.
[0012] Optionally, a fixing groove is provided on the prefabricated manhole ring, and the fixing groove is used to accommodate the sealing manhole cover so that the sealing manhole cover is fixed on the prefabricated manhole ring.
[0013] By adopting the above technical solution, a fixing groove is provided for accommodating the sealing manhole cover, so that the sealing manhole cover can be installed and fixed on the prefabricated manhole ring.
[0014] Optionally, a safety ring is provided on the cavity wall of the movable cavity, the safety ring is used for fixing a rope, and the safety ring is located between the sealing manhole cover and the step protrusion.
[0015] By adopting the above technical solution, a safety ring is provided for fixing the rope, thereby ensuring the safety of the maintenance personnel when they go down into the maintenance shaft, and no additional equipment is needed to fix the rope to ensure the safety of the maintenance personnel.
[0016] Optionally, a flow groove is provided on the bottom wall of the movable cavity, the drainage pipe is located at both ends of the flow groove in the length direction, and a water passage cavity is opened on the drainage pipe, and the water passage cavity is connected with the flow groove.
[0017] By adopting the above technical solution, drainage pipes are set to connect the two ends of the flow groove, so that drainage is smooth and water will not overflow into the active cavity during drainage.
[0018] Optionally, the drainage pipeline is composed of a plurality of drainage pipes, both ends of which are provided with a plug and a socket, and the drainage pipes at the first connection port and the second connection port are connected with the flow groove through the plug.
[0019] By adopting the above technical solution, the socket is connected to the first connection port and the second connection port, so that the flow grooves of the drainage pipe channels at the two locations are connected to ensure drainage.
[0020] Optionally, a drainage hole is provided on the sealed manhole cover, and the drainage hole guides rainwater into the inspection well and discharges it to the river through a drainage pipe.
[0021] By adopting the above technical solution, a drainage hole is set to help drain water during rainfall. When no maintenance is required, the sealed manhole cover can not only seal the inspection port but also drain water, thereby increasing the drainage volume and reducing the possibility of water accumulation on the road.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. Set up a dedicated inspection well to connect the drainage pipes at both ends. When entering the inspection well, you can gradually go down from the inspection port to the bottom wall of the movable cavity through the vertically arranged step protrusions, and then easily enter any pipe at both ends for maintenance. After the maintenance is completed, the sealed well cover is re-covered. Compared with the method of using lifting equipment to lift the maintenance personnel into the inspection well, this easy-to-maintain urban drainage structure can be gradually lowered to the inspection well through the step protrusions, which is more convenient and has lower costs;
[0024] 2. A safety ring is provided for fixing the rope to ensure the safety of the maintenance personnel when they go down to the inspection well. No additional equipment is required to fix the rope to ensure the safety of the maintenance personnel;
[0025] 3. Set up drainage pipes connecting the two ends of the flow groove to ensure smooth drainage. When draining, water will not overflow into the active cavity;
[0026] 4. Setting up drainage holes helps drain water during rainfall. When no maintenance is required, the sealed manhole cover can not only seal the inspection port but also drain water, which can increase the drainage volume and reduce the possibility of water accumulation on the road. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of an urban drainage structure that is easy to maintain in an embodiment of the present application.
[0028] Figure 2 It is a schematic structural diagram of the inspection well of the embodiment.
[0029] Figure 3 Schematic diagram of the structure of the sealing layer of the embodiment.
[0030] Figure 4 It is a schematic structural diagram of a drain pipe according to an embodiment.
[0031] Explanation of the reference numerals in the accompanying drawings: 1. Drainage pipe; 2. Inspection well; 3. Sealing layer; 31. Sealing diaphragm layer; 32. Prefabricated cement reinforcement layer; 33. Original soil layer; 4. First connection port; 5. Second connection port; 6. Movable cavity; 7. Inspection port; 8. Step protrusion; 9. Safety ring; 10. Installation groove; 11. Prefabricated well ring; 12. Fixed groove; 13. Flow groove; 14. Water passage cavity; 15. Plug; 16. Socket; 17. Drain hole; 18. Sealed manhole cover; 19. Drainage pipe. DETAILED DESCRIPTION
[0032] The present application is further described in detail below in conjunction with Attachments 1-4.
[0033] The present application embodiment discloses an urban drainage structure that is easy to repair. Figure 1 and Figure 2 The urban drainage structure which is convenient for maintenance includes a drainage pipe 1 installed underground, an inspection well 2 installed underground and a sealing layer 3 laid on the road surface. A first connection port 4 and a second connection port 5 are opened on both sides of the inspection well 2. The first connection port 4 and the second connection port 5 are both connected to the drainage pipe 1. The first connection port 4 is used for water inlet, and the second connection port 5 is used for water outlet (the sealing layer of the drainage pipe 1 is not shown in the figure).
[0034] Reference Figure 2 and Figure 3 The sealing layer 3 is located on the top surface of the inspection well 2. The inspection well 2 is provided with an active cavity 6. An inspection port 7 is provided on the sealing layer 3. The inspection port 7 is connected with the active cavity 6. A sealing well cover 18 is installed at the inspection port 7.
[0035] Reference Figure 1 and Figure 2 A plurality of step protrusions 8 are fixed on the wall of the movable cavity 6. The number of the step protrusions 8 is determined according to the needs. The step protrusions 8 are arranged at equal intervals in the vertical direction. The inspection port 7 is located directly above the step protrusions 8. A safety ring 9 is fixed on the wall of the movable cavity 6. The safety ring 9 is used for fixing the rope. The safety ring 9 is located between the sealing manhole cover 18 and the step protrusion 8.
[0036] Reference Figure 2 and Figure 3 The sealing layer 3 includes a sealing membrane layer 31 fixed on the inspection well 2, a prefabricated cement reinforcement layer 32 fixed on the sealing membrane, and an original soil layer 33 fixed on the prefabricated cement reinforcement layer 32, and the inspection port 7 penetrates the sealing layer 3. An installation groove 10 is provided on the original soil layer 33, a prefabricated well ring 11 is fixed in the installation groove 10, and the sealing well cover 18 is installed on the prefabricated well ring 11. A fixing groove 12 is provided on the prefabricated well ring 11, and the fixing groove 12 is for accommodating the sealing well cover 18 so that the sealing well cover 18 is fixed on the prefabricated well ring 11.
[0037] Reference Figure 2and Figure 4 , a flow groove 13 is provided on the bottom wall of the active cavity 6, the drainage pipe 1 is located at both ends of the flow groove 13 in the length direction, and a water passage cavity 14 is provided on the drainage pipe 1, and the water passage cavity 14 is connected with the flow groove 13. The drainage pipe 1 is composed of a plurality of drainage pipes 19, and the two ends of the drainage pipe 19 are respectively a plug 15 and a socket 16, the plug 15 is inserted into the socket 16 and sealed with a sealing ring at the same time to connect the adjacent drainage pipes 19, and so on, to form the drainage pipe 1, and the drainage pipes 19 at the first connection port 4 and the second connection port 5 are connected with the flow groove 13 through the plug 15.
[0038] Reference Figure 2 and Figure 3 A drainage hole 17 is provided on the sealing manhole cover 18, and the drainage hole 17 guides rainwater into the inspection well 2 and discharges it to the river through the drainage pipe 1.
[0039] The implementation principle of an urban drainage structure that is easy to maintain in an embodiment of the present application is as follows: a dedicated inspection well 2 is set up to connect the drainage pipes 1 at both ends. When entering the inspection well 2, the user gradually descends from the inspection port 7 to the bottom wall of the movable cavity 6 through the vertically arranged step protrusions 8, and then conveniently enters any pipe at both ends for maintenance. After the maintenance is completed, the sealed well cover 18 is re-covered. Compared with the method of hoisting the maintenance personnel into the inspection well 2 with the help of lifting equipment, the urban drainage structure that is easy to maintain can gradually descend to the inspection well 2 through the step protrusions 8, which is more convenient and has lower cost.
[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An urban drainage structure that is easy to maintain, characterized in that: The invention comprises a drainage pipe (1) arranged underground, an inspection well (2) arranged underground and a sealing layer (3) arranged on the road surface. A first connection port (4) and a second connection port (5) are provided on both sides of the inspection well (2). The first connection port (4) and the second connection port (5) are both connected to the drainage pipe (1). The first connection port (4) is used for water inlet and the second connection port (5) is used for water outlet. The sealing layer (3) is located on the top surface of the inspection well (2). The inspection well (2) is provided with an active cavity (6). An inspection port (7) is provided on the sealing layer (3). The inspection port (7) is connected with the active cavity (6). A sealing well cover (18) is provided at the inspection port (7). A plurality of step protrusions (8) are provided on the cavity wall of the active cavity (6). The step protrusions (8) are arranged at equal intervals in the vertical direction. The inspection port (7) is located directly above the step protrusions (8).
2. The urban drainage structure that is easy to maintain according to claim 1 is characterized in that: The sealing layer (3) comprises a sealing diaphragm layer (31) arranged on the inspection well (2), a prefabricated cement reinforcement layer (32) arranged on the sealing diaphragm, and an original soil layer (33) arranged on the prefabricated cement reinforcement layer (32), and the inspection port (7) penetrates the sealing layer (3).
3. The urban drainage structure that is easy to maintain according to claim 2 is characterized in that: An installation groove (10) is provided on the original soil layer (33), a prefabricated well ring (11) is provided in the installation groove (10), and the sealing well cover (18) is installed on the prefabricated well ring (11).
4. The urban drainage structure that is easy to maintain according to claim 3 is characterized in that: The prefabricated well ring (11) is provided with a fixing groove (12), and the fixing groove (12) is used to accommodate the sealing well cover (18) so that the sealing well cover (18) is fixed on the prefabricated well ring (11).
5. The urban drainage structure that is easy to maintain according to claim 1 is characterized in that: A safety ring (9) is provided on the cavity wall of the movable cavity (6). The safety ring (9) is used for fixing a rope. The safety ring (9) is located between the sealing manhole cover (18) and the step protrusion (8).
6. The urban drainage structure that is easy to maintain according to claim 1 is characterized by: A flow groove (13) is provided on the bottom wall of the movable chamber (6), the drainage pipe (1) is located at both ends of the flow groove (13) in the length direction, and a water passage cavity (14) is opened on the drainage pipe (1), and the water passage cavity (14) is connected to the flow groove (13).
7. The urban drainage structure that is easy to maintain according to claim 6 is characterized by: The drainage pipeline (1) is composed of a plurality of drainage pipes (19), and a plug (15) and a socket (16) are respectively provided at both ends of the drainage pipe (19). The drainage pipes (19) at the first connection port (4) and the second connection port (5) are connected to the flow groove (13) through the plug (15).
8. The urban drainage structure that is easy to maintain according to claim 1 is characterized by: The sealed manhole cover (18) is provided with a drainage hole (17), and the drainage hole (17) guides rainwater into the inspection well (2) and discharges it to the river through the drainage pipe (1).