A drainage structure for old cell reconstruction construction
By adopting a drainage structure using brick masonry wells and concrete drainage pipes in the renovation of old residential areas, and by using rubber auxiliary pipes to seal the air passages, the problems of water pollution and odor diffusion caused by combined sewer overflows in old residential areas have been solved, thus improving the environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FIRST GRP THE SECOND CONSTR
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-14
AI Technical Summary
In the drainage systems of old residential communities, combined sewer overflows cause severe water pollution in the rainwater pipes, resulting in a pervasive odor and affecting the living environment of residents.
Design a drainage structure for the renovation of old residential areas. It adopts brick masonry wells and concrete drainage pipes, with rubber auxiliary pipes installed inside. The free end of the auxiliary pipes hangs down naturally under gravity, sealing the air passage at the intersection of the drainage pipes and the brick masonry wells. Combined with pressure rings for fixation, it prevents the spread of odors.
It effectively isolates odors, improves the external environment, prevents odors from spreading, has a reasonable structure, and the auxiliary pipes naturally droop under gravity to seal the air passage and improve the quality of life.
Smart Images
Figure CN224495355U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building engineering technology and relates to a drainage structure used in the renovation of old residential areas. Background Technology
[0002] During the renovation of old residential areas, it was found that most of these areas use a combined sewer system. Furthermore, the buildings in most of these areas are densely packed, and the alleyways are narrow, making it impossible to implement rainwater and sewage separation due to space constraints. Residents' laundry, kitchen, and bathroom wastewater, along with rainwater, flows together from the storm drains into the community's stormwater pipes, resulting in severe water pollution, turning the water black and smelly, and seriously affecting the residents' living environment.
[0003] Therefore, there is an urgent need to design a drainage structure for the renovation of old residential areas to solve the technical problems existing in the current technology. Utility Model Content
[0004] The purpose of this utility model is to at least partially solve some of the technical problems existing in the prior art, and to provide a drainage structure for the renovation of old residential areas. The structure is reasonable, and the free end of the auxiliary pipe hangs down naturally under the action of gravity, which can isolate the air at the intersection of the drainage pipe and the brick masonry well, prevent odors from spreading out of the pipe, and play a role in improving the external environment.
[0005] To solve the above-mentioned technical problems, this utility model provides a drainage structure for the renovation of old residential areas, which includes a brick masonry well, a rain grate at the top of the brick masonry well, a concrete drainage pipe on the side, and an auxiliary pipe made of rubber inside the drainage pipe; the outer diameter of the auxiliary pipe is smaller than the inner diameter of the drainage pipe, so that the auxiliary pipe can be easily installed in the drainage pipe; the length of the auxiliary pipe is 3-5 times the inner diameter of the drainage pipe.
[0006] In some embodiments, the bottom of the drainage pipe is provided with a slope of not less than 3%.
[0007] In some embodiments, the auxiliary pipe is made of silicone rubber with an elastic modulus of 0.5-5 MPa.
[0008] In some embodiments, the drainage structure further includes a pressure ring, which is bolted to the inner wall of the brick masonry well to press and fix the auxiliary pipe against the inner wall of the brick masonry well.
[0009] In some embodiments, the outer diameter of the fixed end of the auxiliary pipe is larger than the outer diameter of its other end, so that the fixed end of the auxiliary pipe can be flipped outward to cover the interface between the drainage pipe and the brick masonry well; the pressure ring is fixed to the flipped portion of the auxiliary pipe.
[0010] In some embodiments, the pressure ring is made of polytetrafluoroethylene and its inner diameter is larger than the interface between the drainage pipe and the brick masonry well.
[0011] In some embodiments, a ring beam is provided at the top of the brick masonry well, and a groove is provided on the top surface of the ring beam, into which the rainwater grate is engaged.
[0012] In some embodiments, an annular groove is provided on the outer periphery of the auxiliary pipe, and there are multiple annular grooves that are spaced apart along the length of the auxiliary pipe.
[0013] In some embodiments, the spacing between adjacent annular grooves is no greater than 1 / 2 of the diameter of the auxiliary pipe.
[0014] In some embodiments, the brick masonry well is disposed above the bottom concrete layer, and the distance between the auxiliary pipe and the bottom concrete layer is 200-500mm.
[0015] The beneficial effects of this utility model are:
[0016] This utility model provides a drainage structure for the renovation of old residential areas. Its structure is reasonable, and the free end of the auxiliary pipe hangs down naturally under the action of gravity, which can isolate the air at the intersection of the drainage pipe and the brick masonry well, prevent odors from spreading out of the pipe, and play a role in improving the external environment. Attached Figure Description
[0017] The advantages of this invention will become clearer and easier to understand through the following detailed description in conjunction with the accompanying drawings, which are merely illustrative and do not limit the invention, wherein:
[0018] Figure 1 This is a schematic diagram of a drainage structure used in the renovation of an old residential area, as described in this utility model.
[0019] Figure 2 yes Figure 1 A partial schematic diagram of the corresponding AA;
[0020] Figure 3 This is a schematic diagram of an auxiliary pipe provided in one embodiment of the present invention. Detailed Implementation
[0021] Figures 1 to 3 This is a schematic diagram of a drainage structure used in the renovation of old residential areas as described in this application. The present invention will be described in detail below with reference to specific embodiments and accompanying drawings.
[0022] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.
[0023] The accompanying drawings in this specification are schematic diagrams used to illustrate the concept of this utility model, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly show the structure of the components of the embodiments of this utility model, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.
[0024] A schematic diagram of a drainage structure for the renovation of old residential areas described in this utility model is shown below. Figure 1 As shown. The drainage structure used in the renovation of old residential areas includes a brick masonry well 10. A rain grate 20 is installed on the top of the brick masonry well 10, and a concrete drainage pipe 30 is installed on its side. An auxiliary pipe 40 made of rubber is installed inside the drainage pipe 30. The outer diameter of the auxiliary pipe 40 is smaller than the inner diameter of the drainage pipe 30, so that the auxiliary pipe 40 can be easily installed in the drainage pipe 30. The length of the auxiliary pipe 40 is 3-5 times the inner diameter of the drainage pipe 30.
[0025] In this utility model, when there is no rainwater on the road surface, the water enters the drainage pipe 30 through the rain grate 20 and the brick masonry well 10. The free end of the flexible auxiliary pipe 40 hangs down naturally under the action of gravity, sealing the air at the interface (rainwater inlet) between the drainage pipe 30 and the brick masonry well 10, and preventing the odor of sewage in the drainage pipe 3 from spreading into the air through the rainwater inlet.
[0026] During the rainy season, a sudden increase in rainfall can cause a large amount of rainwater to enter the drainage system, potentially leading to backflow at lower-elevation rainwater inlets. When backflow occurs, the free end opening of the flexible auxiliary pipe 40 will close under the impact of the water flow. Figure 1 As shown, this can also prevent water from flowing back into the community to some extent.
[0027] In some embodiments, the bottom of the drainage pipe 30 is provided with a slope of not less than 3%. This arrangement facilitates the placement of the flexible auxiliary pipe 40 along the slope of the drainage pipe 30.
[0028] The auxiliary pipe 40 is made of silicone rubber with an elastic modulus of 0.5-5 MPa. This design helps to ensure that the free end of the auxiliary pipe 40 hangs down naturally under the action of gravity, thereby achieving the closure of the free end of the auxiliary pipe 40.
[0029] In this utility model, the drainage structure also includes a pressure ring 50, such as Figure 2 As shown, it is fixed to the inner wall of the brick masonry well 10 by bolts 60 to press and fix the auxiliary pipe 40 against the inner wall of the brick masonry well 10.
[0030] Furthermore, the outer diameter of the fixed end of the auxiliary pipe 40 is larger than the outer diameter of its other end, so that the fixed end of the auxiliary pipe 40 can be flipped outward to cover the interface between the drainage pipe 30 and the brick masonry well 10; the pressure ring 50 is fixed to the flipped part of the auxiliary pipe 40.
[0031] The pressure ring 50 is made of polytetrafluoroethylene and its inner diameter is larger than the interface between the drainage pipe 30 and the brick masonry well 10, so as to ensure that the auxiliary pipe 40 is reliably fixed to the side wall of the brick masonry well 10.
[0032] Figure 1 In the illustrated embodiment, a ring beam 70 is provided at the top of the brick masonry well 10, and a groove is provided on the top surface of the ring beam 70. The rain grate 20 is engaged in the groove to prevent the rain grate 20 from being washed away by rainwater, thereby ensuring the reliable fixation of the rain grate 20. At the same time, the above solution helps to ensure that the top surface of the rain grate 20 is flush with the ground.
[0033] Figure 3 This is a schematic diagram of an auxiliary pipe 40 provided in an embodiment of the present utility model. An annular groove 41 is provided on the outer periphery of the auxiliary pipe 40. There are multiple annular grooves 41, which are spaced apart along the length direction of the auxiliary pipe 40.
[0034] The setting of the annular groove 41 makes the strength of the auxiliary pipe 40 change periodically along its length, which is conducive to the auxiliary pipe 40 draining water periodically at a certain frequency, ensuring a uniform rhythm of sewage discharge.
[0035] Furthermore, the distance between adjacent annular grooves 41 is no greater than 1 / 2 of the diameter of the auxiliary pipe 40. For example, the distance between adjacent annular grooves 41 is 10-30mm, so that the auxiliary pipe 40 drains water at a certain rhythm.
[0036] Figure 1 In the illustrated embodiment, the brick masonry well 10 is located above the bottom concrete layer 80, and the distance between the auxiliary pipe 40 and the bottom concrete layer 80 is 200-500mm. This facilitates the storage of some water in the brick masonry well 10 before it is discharged along the drainage pipe.
[0037] Compared with the shortcomings and deficiencies of existing technologies, the drainage structure provided by this utility model for the renovation of old residential areas has a reasonable structure. The free end of the auxiliary pipe hangs down naturally under the action of gravity, which can isolate the air at the intersection of the drainage pipe and the brick masonry well, prevent odors from spreading out of the pipe, and play a role in improving the external environment.
[0038] This utility model is not limited to the above-described embodiments. Anyone can derive other products in various forms under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.
Claims
1. A drainage structure for renovation of old residential areas, characterized in that, The system includes a brick masonry well (10), with a rain grate (20) at the top and a concrete drainage pipe (30) on its side. An auxiliary pipe (40) made of rubber is installed inside the drainage pipe (30). The outer diameter of the auxiliary pipe (40) is smaller than the inner diameter of the drainage pipe (30), so that the auxiliary pipe (40) can be easily installed in the drainage pipe (30). The length of the auxiliary pipe (40) is 3-5 times the inner diameter of the drainage pipe (30).
2. The drainage structure according to claim 1, characterized in that, The bottom of the drainage pipe (30) is provided with a slope of not less than 3%.
3. The drainage structure according to claim 1, characterized in that, The auxiliary pipe (40) is made of silicone rubber with an elastic modulus of 0.5-5 MPa.
4. The drainage structure according to claim 1, characterized in that, It also includes a pressure ring (50), which is fixed to the inner wall of the brick masonry well (10) by bolts (60) to press and fix the auxiliary pipe (40) against the inner wall of the brick masonry well (10).
5. The drainage structure according to claim 4, characterized in that, The outer diameter of the fixed end of the auxiliary pipe (40) is larger than the outer diameter of the other end, so that the fixed end of the auxiliary pipe (40) can be flipped outward to cover the interface between the drainage pipe (30) and the brick masonry well (10); the pressure ring (50) is fixed to the flipped part of the auxiliary pipe (40).
6. The drainage structure according to claim 4, characterized in that, The pressure ring (50) is made of polytetrafluoroethylene and its inner diameter is larger than the interface between the drainage pipe (30) and the brick masonry well (10).
7. The drainage structure according to claim 1, characterized in that, The top of the brick masonry well (10) is provided with a ring beam (70), and the top surface of the ring beam (70) is provided with a groove, and the rain grate (20) is engaged in the groove.
8. The drainage structure according to claim 1, characterized in that, The auxiliary pipe (40) is provided with an annular groove (41) on its outer periphery. There are multiple annular grooves (41) and they are spaced apart along the length of the auxiliary pipe (40).
9. The drainage structure according to claim 8, characterized in that, The distance between adjacent annular grooves (41) is no greater than 1 / 2 of the diameter of the auxiliary pipe (40).
10. The drainage structure according to claim 1, characterized in that, The brick masonry well (10) is located above the bottom concrete layer (80), and the distance between the auxiliary pipe (40) and the bottom concrete layer (80) is 200-500mm.