CN209670021U - A rainwater drainage system - Google Patents

Abstract

This utility model relates to the field of drainage engineering technology, and in particular to a rainwater and sewage discharge system. The system includes a manhole, a building exterior wall, a horizontal pipe between the building exterior wall and the manhole, and a transition well between the manhole and the building exterior wall. The horizontal pipe includes an upward horizontal pipe and a downward horizontal pipe. One end of the upward horizontal pipe is located inside the building exterior wall, and the other end is located inside the transition well. One end of the downward horizontal pipe is located inside the transition well, and the other end is located inside the manhole. A settlement space is reserved above the upward horizontal pipe. Within this settlement space, the transition well can move downward relative to the upward horizontal pipe. This effectively solves the problems of misalignment, breakage, and leakage of rainwater and sewage pipes when the outdoor ground settlement is large. Furthermore, the system has a simple construction process, low project cost, low subsequent maintenance costs, and convenient maintenance.

Description

A rainwater drainage system

technical field

The utility model relates to the technical field of drainage engineering, in particular to a rainwater sewage discharge system.

Background technique

Generally, one end of the building rainwater pipe is fixed to the building foundation or the basement shear wall, and the other end passes through the wall of the inspection well. Due to the large amount of outdoor ground settlement, the relative height difference between the building and the outdoor ground increases, and the height difference is likely to cause dislocation, breakage and leakage of the horizontal drainage pipe.

Existing urban road rain and sewage pipelines mostly use reinforced concrete pipes, and mortar bands or rubber rings are used to seal the joints between pipes to prevent leakage. However, this method has poor resistance to uneven settlement, causing misalignment between pipes, resulting in solution leakage.

The Chinese patent with the notification number CN 206802505U discloses an urban rain and sewage pipe, which includes a plurality of connected water pipe monomers. The water pipe monomer includes a water pipe monomer body. The two ends of the monomer body are provided with a water pipe monomer connecting flange made of the same material as the water pipe monomer body. The two water pipe monomers are connected through the water pipe monomer connecting flange. There is a rubber sealing ring between them, and a plurality of connected water pipes form a water pipe group; the two water pipe groups are connected by a telescopic device, and the telescopic device can be stretched. Although this application can improve the impermeability and stability of the pipeline to a certain extent, when the outdoor ground has a large amount of settlement, the pipeline will still be dislocated and broken. In addition, the application process is relatively complicated.

Utility model content

The purpose of the utility model is to solve the problem of misalignment, breakage and leakage of rainwater and sewage pipes caused by large outdoor ground settlement, and to provide a rainwater discharge system with simple structure and effective resistance to large outdoor ground settlement.

In order to achieve the above object, the utility model adopts the following technical solutions:

A rainwater drainage system, comprising an inspection well, a building exterior wall, a horizontal pipe is provided between the building exterior wall and the inspection well, and a transition well is also provided between the inspection well and the building exterior wall, The horizontal pipe includes an upward horizontal pipe and a downward horizontal pipe. One end of the upward horizontal pipe is located in the building exterior wall, and the other end is located in the transition well. One end of the downward horizontal pipe is located in the transition well, and the other end is in the transition well. In the inspection well, a settlement space is reserved above the ascending transverse pipe, and in the settlement space, the transition well can move downward relative to the ascending transverse pipe.

Further, the transition well is in close contact with the exterior wall of the building, the settlement space is a U-shaped groove provided on the wall of the transition well, and the other end of the ascending horizontal pipe is located in the U-shaped groove.

Further, a transition well cover is provided on the top of the U-shaped groove to cover the transition well, and a transition well cover is provided inside the transition well cover.

Further, the number of the U-shaped groove is one or several.

Further, the height of the U-shaped groove is the reserved settlement amount.

Further, a spacer is provided between the transition well and the outer wall of the building, one side of the transition well is a section, the other end of the upward horizontal pipe is located at the section of the transition well wall, and the upward The spacer above the transverse tube forms the settling space.

Further, the settlement space communicates with the transition well to form a maintenance well.

Further, a maintenance well cover is provided on the top of the maintenance well to cover the maintenance well, and a maintenance well cover is provided inside the maintenance well cover.

Further, the height of the section from the ground is the reserved settlement amount.

Further, the height of the descending transverse tube is lower than that of the ascending transverse tube.

Compared with the prior art, the utility model has the following beneficial effects:

1. By adding a transition well, dividing the horizontal pipe into an upward horizontal pipe and a downward horizontal pipe, and reserving a settlement space above the upward horizontal pipe, it can effectively solve the misalignment, fracture and seepage of the rainwater and sewage pipes when the outdoor ground settlement is large. leakage problem;

2. The construction process is simple, the project cost is low, the follow-up maintenance cost is low, and the maintenance is convenient.

Description of drawings

Fig. 1 is a plan view of a rainwater drainage system in Embodiment 1 of the present invention;

Fig. 2 is A-A sectional view among Fig. 1;

Fig. 3 is the B-B sectional view among Fig. 1;

Fig. 4 is a C-C sectional view among Fig. 1;

Fig. 5 is a plan view of a rainwater drainage system according to Embodiment 2 of the present invention;

Fig. 6 is A-A sectional view among Fig. 5;

Fig. 7 is the B-B sectional view among Fig. 5;

Fig. 8 is a sectional view of C-C in Fig. 5 .

In the figure: 1 is the inspection well, 2 is the outer wall of the building, 3 is the transition well, 4 is the upward horizontal pipe, 5 is the downward horizontal pipe, 6 is the U-shaped groove, 7 is the section, and 8 is the maintenance well.

Detailed ways

The technical scheme of the utility model is further described and illustrated through specific embodiments below.

Embodiment one

This embodiment provides a rainwater drainage system, which includes an inspection well 1 , a building exterior wall 2 , and a horizontal pipe is arranged between the building exterior wall 2 and the inspection well 1 . A transition well 3 is also provided between the inspection well 1 and the building exterior wall 2 . The transverse pipes include an ascending transverse pipe 4 and a descending transverse pipe 5 . One end of the ascending horizontal pipe 4 is located in the building exterior wall 2 , and the other end is located in the transition shaft 3 . One end of the descending horizontal pipe 5 is located in the transition well 3 and the other end is located in the inspection well 1 . A settling space is reserved above the ascending transverse pipe 4, and in the descending space, the transition well 3 can move downward relative to the ascending transverse pipe 4.

By adding a transition well 3, a traditional horizontal pipe is divided into an upward horizontal pipe 4 and a downward horizontal pipe 5, and the upward horizontal pipe 4 is fixed inside the building exterior wall 2, so the upward horizontal pipe 4 will not follow the settlement of the ground outside the building And sink. Although one end of the ascending horizontal pipe 4 is fixed in the transition well 3, the settling space reserved above can prevent the ascending transverse pipe 4 from bearing the pressure of ground subsidence outside the building, and fully guarantee that the ascending transverse pipe 4 will not be deformed and damaged. The two ends of the descending horizontal pipe 5 are respectively fixed in the transition well 3 and the inspection well 1. The transition well 3 and the inspection well 1 sink as a whole with the ground subsidence, and the subsidence part of the ground can be raised irregularly to keep it flush with the current floor . The settlement difference between the transition well 3 and the inspection well 1 is small, so the descending horizontal pipe 5 connected between the two is not easily deformed and damaged. Under the premise that neither the ascending horizontal pipe 4 nor the descending horizontal pipe 5 will be deformed or damaged, the rainwater discharge system can still operate normally when the outdoor ground settlement is large.

In this embodiment, the transition well 3 is close to the building exterior wall 2, and the settlement space is the U-shaped groove 6 provided on the wall of the transition well 3, and the other end of the ascending horizontal pipe 4 is located in the U-shaped groove 6. After the ascending horizontal pipe 4 passes through the building exterior wall 2, it is immediately placed in the U-shaped groove 6 of the well wall of the transition well 3. After the transition well 3 settles, there is a gap between the U-shaped groove 6 and the ascending horizontal pipe 4, and the gap needs to be plugged regularly. Because the transition well 3 is close to the building exterior wall 2, so it is not necessary to establish a maintenance well 8 in addition.

The top of the U-shaped groove 6 is provided with a transition well cover to cover the transition well 3. The transition well cover is provided with a transition well cover, and the transition well cover covers the top opening of the U-shaped groove 6 simultaneously. The quantity of U-shaped groove 6 is one or several, and the quantity of U-shaped groove 6 is determined according to the actual situation on site. The height of the U-shaped groove 6 is the reserved settlement amount, and the ascending horizontal pipe 4 is within the height value range of the U-shaped groove 6, and is not affected by the ground settlement outside the building. Preferably, the transition well 3 is rectangular, which fully ensures that the well wall of the transition well 3 is in close contact with the building exterior wall 3 .

Embodiment two

This embodiment provides another rainwater drainage system, which is different from the first embodiment in that there is a certain distance between the transition well 3 and the outer wall 2 of the building, and different settlement spaces are set.

There is an interval area between the transition well 3 and the building exterior wall 2, the well wall on one side of the transition well 3 is a section 7, the other end of the upward horizontal pipe 4 is located at the well wall section 7 of the transition well 3, and the interval above the upward horizontal pipe 4 The area forms a subsidence space.

After the ascending horizontal pipe 4 passes through the building exterior wall 2, after stretching out a distance from one end, it is placed at the section 7 of the well wall of the transition well 3. The interval area above the ascending horizontal pipe 4 is hollowed out without covering the soil layer to form a settlement space to ensure that the ascending transverse pipe 4 is not affected by the ground settlement outside the building.

The settlement space communicates with the transition well 3 to form a maintenance well 8 . The top of the maintenance well 8 is provided with a maintenance well cover to cover the maintenance well 8 , and the cover of the maintenance well 8 is provided with a well cover of the maintenance well 8 . The maintenance well 8 reduces the maintenance cost of the rain and sewage pipe and facilitates maintenance. The height of section 7 from the ground is the reserved settlement amount, and the ascending horizontal pipe 4 is within the range of the height of section 7 from the ground, and is not affected by the settlement of the ground outside the building.

In addition, in Embodiment 1 and Embodiment 2, the height of the descending horizontal pipe 5 is lower than that of the ascending horizontal pipe 4, and through the height difference between the ascending horizontal pipe 4 and the descending horizontal pipe 5, rainwater or sewage can Smooth flow out of the transition well 3. The transition well 3 sinks as a whole with the ground subsidence.

The embodiments of the present utility model have been described in detail above. For those of ordinary skill in the art, according to the ideas provided by the present utility model, there will be changes in the specific implementation, and these changes should also be regarded as the present utility model. scope of protection.

Claims (10)

1. A rainwater discharge system, comprising inspection well (1), building exterior wall (2), is provided with horizontal pipe between described building exterior wall (2) and described inspection well (1), is characterized in that: A transition well (3) is also provided between the inspection well (1) and the building exterior wall (2); The horizontal pipe includes an ascending horizontal pipe (4) and a descending horizontal pipe (5); one end of the ascending horizontal pipe (4) is located in the building exterior wall (2), and the other end is located in the transition well (3) ; One end of the descending horizontal pipe (5) is located in the transition well (3), and the other end is located in the inspection well (1); A settling space is reserved above the ascending horizontal pipe (4), and in the settling space, the transition well (3) can move downward relative to the ascending transverse pipe (4). 2. The rainwater drainage system according to claim 1, characterized in that: the transition well (3) is close to the building exterior wall (2), and the settlement space is the well of the transition well (3) A U-shaped groove (6) is provided on the wall, and the other end of the upward horizontal pipe (4) is located in the U-shaped groove (6). 3. The rainwater drainage system according to claim 2, characterized in that: the top of the U-shaped groove (6) is provided with a transition well cover to cover the transition well (3), and the transition well cover is provided with Transition manhole cover. 4. The rainwater drainage system according to claim 3, characterized in that: the number of the U-shaped grooves (6) is one or several. 5. The rainwater drainage system according to claim 4, characterized in that: the height of the U-shaped groove (6) is the reserved settlement amount. 6. The rainwater drainage system according to claim 1, characterized in that: an interval area is provided between the transition well (3) and the building exterior wall (2); One side well wall of the transition well (3) is a section (7), the other end of the upward horizontal pipe (4) is located at the well wall section (7) of the transition well (3), and the upward horizontal pipe (4) The upper spacer forms the settling space. 7. The rainwater drainage system according to claim 6, characterized in that: the settlement space communicates with the transition well (3) to form a maintenance well (8). 8. The rainwater drainage system according to claim 7, characterized in that: a maintenance well cover is provided on the top of the maintenance well (8) to cover the maintenance well (8), and a maintenance well is provided inside the maintenance well cover manhole cover. 9. The rainwater drainage system according to claim 6, characterized in that: the height of the section (7) from the ground is the reserved settlement amount. 10. The rainwater drainage system according to any one of claims 1-9, characterized in that the height of the descending horizontal pipe (5) is lower than that of the ascending horizontal pipe (4).