Building drainage device

Abstract

The application discloses a building drainage device, which comprises a drainage vertical pipe connecting seat, a water storage cavity and a drainage inclined pipe. The inner passage of the drainage vertical pipe connecting seat is vertically through. The two ends of the drainage inclined pipe are respectively connected with the drainage vertical pipe connecting seat and the water storage cavity. The connection between the drainage inclined pipe and the water storage cavity forms an upper end drainage port. The connection between the drainage inclined pipe and the drainage vertical pipe connecting seat forms a lower end drainage port. The upper end drainage port is higher than the lower end drainage port. The application solves how to eliminate the influence of water tongue on the ventilation effect of the drainage vertical pipe, makes the air pressure fluctuation in the drainage vertical pipe small, the wave amplitude small, makes the water in the water storage cavity quickly drain, greatly increases the drainage capacity of the drainage vertical pipe, and reduces the water flow noise of the drainage vertical pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building drainage system, in particular to a building drainage device. BACKGROUND

[0002] Water tongue is a kind of hydraulic form, which is formed when water flow in the state of jet flow turns into the drainage vertical pipe from the drainage branch pipe, and the water body falls outward in an arc shape under the gravity at the end of the water outlet of the branch pipe. It fills the cross section of the drainage vertical pipe along the water flow direction, and only two gaps are left on both wings of the water tongue as air flow passages. The cross-sectional area of the two gaps is much smaller than that of the air flow in the drainage vertical pipe, and the phenomenon of short-time interruption of the air flow passage of the drainage vertical pipe is easy to occur, which causes the air flow below the drainage vertical pipe to be unable to connect to the atmosphere. During the peak period of drainage, the volume of the gas inside the drainage vertical pipe is continuously compressed, expanded or vibrated by factors such as, and the air pressure in the drainage vertical pipe fluctuates quickly and has a large amplitude, which eventually causes the suction and spatter of the water seal of the drainage branch pipe until the damage, and the toxic and harmful gas enters the indoor, endangering people's physical and mental health. Therefore, how to eliminate the water tongue or minimize the influence of the water tongue on the air passage effect of the drainage vertical pipe is an important measure to ensure the drainage capacity, and is worth studying and discussing.

[0003] In addition, the connection mode of the upper drainage vertical pipe and the lower drainage vertical pipe of the residential drainage system generally adopts flange or clamp connection. Whether flange or clamp connection is adopted, when the drainage vertical pipe penetrates through the residential floor, due to the different materials and different expansion coefficients of the drainage vertical pipe and the floor concrete, a gap is formed at the joint of the drainage vertical pipe and the floor concrete, and water is easy to seep from the gap. After a long time of seepage, the reinforcement will expand, and the surface of the cement will be abnormal, thereby affecting the service life of the house. SUMMARY

[0004] Therefore, the present application provides a building drainage device to eliminate the water tongue or minimize the influence of the water tongue on the air passage effect of the drainage vertical pipe, so that the air pressure in the drainage vertical pipe fluctuates little and has a small amplitude, the water in the water storage cavity is quickly discharged, the drainage capacity of the drainage vertical pipe is greatly increased, and the water flow noise of the drainage vertical pipe is reduced.

[0005] In one aspect, the present application provides a building drainage device, which comprises a drainage vertical pipe connecting seat, a water storage cavity and a drainage inclined pipe. The inner passage of the drainage vertical pipe connecting seat is vertically through, and the two ends of the drainage inclined pipe are connected with the drainage vertical pipe connecting seat and the water storage cavity respectively. An upper end drainage port is formed at the connection between the drainage inclined pipe and the water storage cavity, and a lower end drainage port is formed at the connection between the drainage inclined pipe and the drainage vertical pipe connecting seat. The upper end drainage port is higher than the lower end drainage port.

[0006] In order to further eliminate the water tongue or reduce the influence of the water tongue on the ventilation effect of the drainage vertical pipe, so that the air pressure fluctuation in the drainage vertical pipe is small and the amplitude is small, in a further technical solution, the area of the upper end drainage port is smaller than the area of the lower end drainage port, and the area of the lower end drainage port is twice or more than twice the area of the upper end drainage port.

[0007] In order to further eliminate the water tongue or reduce the influence of the water tongue on the ventilation effect of the drainage vertical pipe, so that the air pressure fluctuation in the drainage vertical pipe is small and the amplitude is small, in a further technical solution, the cross section of the drainage inclined pipe is circular, the lower end drainage port is elliptical, the long axis Y1 of the lower end drainage port is greater than the short axis X1 of the lower end drainage port, the long axis Y1 of the lower end drainage port is located in the up-down direction, and the short axis X1 of the lower end drainage port is located in the left-right direction; the inner wall of the water storage cavity is closed below the inner passage of the drainage inclined pipe, the upper end drainage port is formed above the inner wall of the water storage cavity, the upper end drainage port is arc-shaped above, the upper end drainage port is planar below, and the longest height Y2 of the upper end drainage port is smaller than the longest width X2 of the upper end drainage port.

[0008] In order to further eliminate the water tongue or reduce the influence of the water tongue on the ventilation effect of the drainage vertical pipe, so that the air pressure fluctuation in the drainage vertical pipe is small and the amplitude is small, in a further technical solution, the inclination angle R2 of the drainage inclined pipe is greater than 5 degrees and less than 60 degrees, the length H3 of the drainage inclined pipe is greater than 20 mm, the long axis Y1 of the lower end drainage port is greater than 20 mm and less than 101 mm, the short axis X1 of the lower end drainage port is greater than 10 mm and less than 90 mm, and the area of the lower end drainage port is greater than 157 mm²; the longest height Y2 of the upper end drainage port is greater than 10 mm and less than 50 mm, the longest width of the upper end drainage port is greater than 10 mm and less than 90 mm, and the area of the upper end drainage port is greater than 78.5 mm².

[0009] In order to solve the installation and connection problem of the upper drainage vertical pipe and the lower drainage vertical pipe, in a further technical solution, an upper receiving port is arranged at the upper end of the drainage vertical pipe connecting seat, a lower receiving port is arranged at the lower end of the drainage vertical pipe connecting seat, and a sealing element is arranged in the upper receiving port and the lower receiving port.

[0010] In order to improve the sealing effect and make it easy for the drainage vertical pipe to come out of the sealing body, in a further technical solution, the sealing element is made of rubber, and the sealing element includes an outer sealing body, an inner sealing body, an upper planar sealing body, and a lower planar sealing body; the upper planar sealing body is connected to the upper end of the outer sealing body, the lower planar sealing body is connected to the lower end of the outer sealing body, the inner sealing body is located in the outer sealing body, the upper end of the inner sealing body is connected to the upper end of the outer sealing body, the distance between the inner sealing body and the outer sealing body gradually increases from top to bottom, and the inner diameter of the inner sealing body gradually decreases from top to bottom.

[0011] In order to further improve the sealing effect and make the drainage vertical pipe easy to insert into the sealing body and difficult to come out, in a further technical solution, the outer diameter of the upper flat sealing body is greater than the outer diameter of the outer sealing body, the inner diameter of the outer sealing body is greater than the inner diameter of the lower flat sealing body, and the inner diameter of the lower flat sealing body is equal to or greater than the minimum inner diameter of the inner sealing body.

[0012] In order to further improve the sealing effect and make the drainage vertical pipe easy to insert into the sealing body and difficult to come out, in a further technical solution, the outer sealing body and the inner sealing body and the lower flat sealing body form an annular cavity, and the annular cavity (15) is formed between the lower end of the inner sealing body and the upper end surface of the lower flat sealing body.

[0013] In order to further improve the sealing effect and make the drainage vertical pipe easy to insert into the sealing body and difficult to come out, in a further technical solution, the inclination angle R1 of the inner sealing body is less than 30 degrees, the total height H1 of the sealing member is greater than 20 mm, and the height H2 of the annular cavity side opening is greater than 5 mm.

[0014] In order to further improve the sealing effect and make the drainage vertical pipe easy to insert into the sealing body and difficult to come out, in a further technical solution, the outer sealing body and the upper sealing body or the lower sealing body form a side sealing, the upper flat sealing body and the upper sealing body or the lower sealing body form a flat sealing, the lower flat sealing body and the upper sealing body or the lower sealing body form a flat sealing, and the inner sealing body is used to form a side sealing with the outer wall of the drainage vertical pipe inserted into the upper sealing body or the lower sealing body, and the upper end surface of the lower flat sealing body is used to form a flat sealing with the end surface of the drainage vertical pipe inserted into the upper sealing body or the lower sealing body.

[0015] The building drainage device of the present application has the following beneficial effects compared with the prior art:

[0016] The water tongue is eliminated or the influence of the water tongue on the ventilation effect of the drainage vertical pipe is reduced as much as possible, the air pressure fluctuation in the drainage vertical pipe is small, the wave amplitude is small, the water in the water storage cavity is quickly discharged, the drainage capacity of the drainage vertical pipe is greatly increased, and the water flow noise of the drainage vertical pipe is reduced.

[0017] The upper drainage vertical pipe and the lower drainage vertical pipe are convenient, fast and reliable to install, the upper drainage vertical pipe and the lower drainage vertical pipe are easy to insert into the sealing body and difficult to come out, and the sealing effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 is a schematic diagram of the building drainage device of the present application;

[0020] Figure 2 isFigure 1 a top view of the sealing body structure of

[0021] Figure 3 is a sectional view of A-A of Figure 2

[0022] Figure 4 is a sectional view of B-B of Figure 1

[0023] Figure 5 is a sectional view of C-C of Figure 1

[0024] Figure 6 is a schematic view of the sealing body structure of Figure 3

[0025] Figure 7 is a top view of the sealing body structure of Figure 6

[0026] Figure 8 is a schematic view of the sealing body structure of the drain riser inserted into the sealing body. Embodiments

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] As shown in Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 The present application provides a building drainage device 100, which is embedded in the floor concrete, comprising a drain riser connecting seat 101, a water storage cavity 102, and a drain inclined pipe 103. The drain riser connecting seat 101 is connected to the upper and lower drain risers 2, and the water storage cavity 102 is installed with a floor drain. The drain inclined pipe 103 is connected to the drain riser connecting seat 101 and the water storage cavity 102 at both ends. The drain inclined pipe 103 is connected to the water storage cavity 102 to form an upper end drain port 106, and is connected to the drain riser connecting seat 101 to form a lower end drain port 105. The upper end drain port 106 is higher than the lower end drain port 105, and the area of the upper end drain port 106 is smaller than that of the lower end drain port 105. The area of the lower end drain port 105 is twice or more than twice the area of the upper end drain port 106.

[0029] As shown in Figure 4 and Figure 5 ​​​​​As shown in the drawings, the cross section of the passage in the drain slope pipe 103 is circular, the lower end drain outlet 105 is oval, the long axis Y1 of the lower end drain outlet 105 is greater than the short axis X1 of the lower end drain outlet 105, the long axis Y1 of the lower end drain outlet 105 is in the up-down direction, and the short axis X1 of the lower end drain outlet 105 is in the left-right direction; the inner wall 104 of the water storage cavity 102 seals the lower passage of the drain slope pipe 103, the upper end of the inner wall 104 of the water storage cavity 102 forms the upper end drain outlet 106, the upper end of the upper end drain outlet 106 is arc-shaped, the lower end of the upper end drain outlet 106 is flat, and the longest height Y2 of the upper end drain outlet 106 is less than the longest width X2 of the upper end drain outlet 106.

[0030] As shown in the drawings, the cross section of the passage in the drain slope pipe 103 is circular, the lower end drain outlet 105 is oval, the long axis Y1 of the lower end drain outlet 105 is greater than the short axis X1 of the lower end drain outlet 105, the long axis Y1 of the lower end drain outlet 105 is in the up-down direction, and the short axis X1 of the lower end drain outlet 105 is in the left-right direction; the inner wall 104 of the water storage cavity 102 seals the lower passage of the drain slope pipe 103, the upper end of the inner wall 104 of the water storage cavity 102 forms the upper end drain outlet 106, the upper end of the upper end drain outlet 106 is arc-shaped, the lower end of the upper end drain outlet 106 is flat, and the longest height Y2 of the upper end drain outlet 106 is less than the longest width X2 of the upper end drain outlet 106. Figure 3 Figure 4 As shown in the drawings, the cross section of the passage in the drain slope pipe 103 is circular, the lower end drain outlet 105 is oval, the long axis Y1 of the lower end drain outlet 105 is greater than the short axis X1 of the lower end drain outlet 105, the long axis Y1 of the lower end drain outlet 105 is in the up-down direction, and the short axis X1 of the lower end drain outlet 105 is in the left-right direction; the inner wall 104 of the water storage cavity 102 seals the lower passage of the drain slope pipe 103, the upper end of the inner wall 104 of the water storage cavity 102 forms the upper end drain outlet 106, the upper end of the upper end drain outlet 106 is arc-shaped, the lower end of the upper end drain outlet 106 is flat, and the longest height Y2 of the upper end drain outlet 106 is less than the longest width X2 of the upper end drain outlet 106. Figure 5

[0031] ​​The indoor domestic wastewater flows into the water storage cavity 102 through the floor drain, and forms a water seal at the water storage cavity 102. The domestic wastewater in the water storage cavity 102 flows into the drainage inclined pipe 103 from the upper end outlet 106, and the domestic wastewater in the drainage inclined pipe 103 plunges downward from the lower end outlet 105 into the drainage vertical pipe connecting seat 101, and forms a water body that falls downward by gravity, i.e., a downward water tongue, at the lower end outlet 105. The water flow of the drainage inclined pipe 103 converges with the water flow of the drainage vertical pipe 2, and the water flow of the drainage inclined pipe 103 fills part of the cross section of the drainage vertical pipe 2. Because the channel cross section in the drainage inclined pipe 103 is circular, the lower end outlet 105 is elliptical, the long axis Y1 of the lower end outlet 105 is greater than the short axis X1 of the lower end outlet 105, the long axis Y1 of the lower end outlet 105 is located in the up-down direction, the short axis X1 of the lower end outlet 105 is located in the left-right direction, the inner wall 104 of the water storage cavity 102 encloses the channel below the drainage inclined pipe 103, the upper wall of the inner wall 104 of the water storage cavity 102 forms the upper end outlet 106, the upper wall of the upper end outlet 106 is arc-shaped, the lower wall of the upper end outlet 106 is planar, the longest height Y2 of the upper end outlet 106 is less than the longest width X2 of the upper end outlet 106. The inclination angle R2 of the drainage inclined pipe 103 is 20 degrees, the length H3 of the drainage inclined pipe 103 is 34 mm, the long axis Y1 of the lower end outlet 105 is 32 mm, the short axis X1 of the lower end outlet 105 is 30 mm, and the area of the lower end outlet 105 is 753.6 mm²; the longest height Y2 of the upper end outlet 106 is 16 mm, the longest width of the upper end outlet 106 is 30 mm, and the area of the upper end outlet 106 is 376.8 mm². The area 753.6 mm² of the lower end outlet 105 is twice the area 376.8 mm² of the upper end outlet 106, so not only are two gaps left on the two wings of the water tongue as air flow passages, but also two gaps are left above and outside the water tongue as air flow passages, and the cross-sectional areas of the four gaps are consistent with the air flow cross-sectional area in the drainage vertical pipe, so that the phenomenon of temporarily cutting off the air passage cross section of the drainage vertical pipe does not occur, the influence of the water tongue on the air passage effect of the drainage vertical pipe is eliminated, the air pressure fluctuation in the drainage vertical pipe 2 is small, and the wave amplitude is small. Because the inclination angle R2 of the drainage inclined pipe 103 is large, the downward plunging force of the water flow in the drainage inclined pipe 103 is large, the water in the water storage cavity 102 is quickly discharged, the drainage capacity of the drainage vertical pipe 2 is greatly increased, and the water flow noise of the drainage vertical pipe 2 is reduced.

[0032] As shown in Figure 3 , an upper receiving port 107 is arranged at the upper end of the drainage vertical pipe connecting seat 101, a lower receiving port 108 is arranged at the lower end of the drainage vertical pipe connecting seat 101, and a sealing element 1 is installed in the upper receiving port 107 and the lower receiving port 108.

[0033] As shown in Figure 6 and Figure 7 and Figure 8As shown, the seal 1 is made of rubber, and the seal 1 comprises an outer seal body 10, an inner seal body 13, an upper flat seal body 11, and a lower flat seal body 12. The upper flat seal body 11 is connected to the upper end of the outer seal body 10, the lower flat seal body 12 is connected to the lower end of the outer seal body 10, the inner seal body 13 is located in the outer seal body 10, the upper end of the inner seal body 13 is connected to the upper end of the outer seal body 10, the distance between the inner seal body 13 and the outer seal body 10 gradually increases from top to bottom, and the inner diameter of the inner seal body 13 gradually decreases from top to bottom. The outer diameter of the upper flat seal body 11 is greater than the outer diameter of the outer seal body 10, the inner diameter of the outer seal body 10 is greater than the inner diameter of the lower flat seal body 12, and the inner diameter of the lower flat seal body 12 is equal to or greater than the minimum inner diameter of the inner seal body 13. The outer seal body 10, the inner seal body 13, and the lower flat seal body 12 form an annular cavity 15, and the annular cavity 15 is formed with a side opening between the lower end of the inner seal body 13 and the upper end surface 14 of the lower flat seal body 12. The inclination angle R1 of the inner seal body 13 is 5 degrees, the total height H1 of the seal 1 is 30 mm, and the height H2 of the side opening of the annular cavity 15 is 10 mm.

[0034] As shown in Figure 3 and Figure 8 , the outer seal body 10 cooperates with the inner walls of the upper and lower receiving interfaces 107 and 108 to form a side seal, the upper flat seal body 11 cooperates with the end surfaces of the upper and lower receiving interfaces 107 and 108 to form a flat seal, the lower end surface of the lower flat seal body 12 cooperates with the bottom surfaces of the upper and lower receiving interfaces 107 and 108 to form a flat seal, the inner seal body 13 cooperates with the outer wall of the drain vertical pipe 2 inserted into the upper and lower receiving interfaces 107 and 108 to form a side seal, and the upper end surface 14 of the lower flat seal body 12 cooperates with the end surface of the drain vertical pipe 2 inserted into the upper and lower receiving interfaces 107 and 108 to form a flat seal. The upper and lower drain vertical pipes 2 are easy to install, fast, and reliable. After the upper and lower drain vertical pipes 2 are inserted into the seal body 1, the inner seal body 13 deforms, the air in the annular cavity 15 is discharged from the side opening of the annular cavity 15, and when the upper end surface 14 of the lower flat seal body 12 cooperates with the end surface of the drain vertical pipe 2 to form a flat seal, the side opening of the annular cavity 15 is closed, the annular cavity 15 is sealed, and the pressure in the annular cavity 15 increases. Therefore, it is difficult for the upper and lower drain vertical pipes 2 to be inserted into the seal body 1, and the sealing effect is good.

[0035] The above-described techniques are well known to those skilled in the art. The above description is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A building drainage device, characterized in that, The device comprises a drain vertical pipe connecting seat (101), a water storage cavity (102) and a drain inclined pipe (103). The drain vertical pipe connecting seat (101) is connected with the water storage cavity (102) and the drain inclined pipe (103) at two ends respectively. The drain inclined pipe (103) is connected with the water storage cavity (102) to form an upper end drain port (106), and the drain inclined pipe (103) is connected with the drain vertical pipe connecting seat (101) to form a lower end drain port (105). The upper end drain port (106) is higher than the lower end drain port (105). The cross section of the drain inclined pipe (103) is circular, the lower end drain port (105) is elliptical, the long axis Y1 of the lower end drain port (105) is greater than the short axis X1 of the lower end drain port (105), the long axis Y1 of the lower end drain port (105) is located in the up-down direction, and the short axis X1 of the lower end drain port (105) is located in the left-right direction. The long axis Y1 of the lower end drain port (105) is greater than 20 mm and less than 101 mm, the short axis X1 of the lower end drain port (105) is greater than 10 mm and less than 90 mm, the inner wall (104) of the water storage cavity (102) seals the lower end of the drain inclined pipe (103), the upper end of the water storage cavity (102) forms the upper end drain port (106), the upper end of the upper end drain port (106) is arc-shaped, the lower end of the upper end drain port (106) is flat, and the longest height Y2 of the upper end drain port (106) is less than the longest width X2 of the upper end drain port (106). The inclination angle R2 of the drain inclined pipe (103) is greater than 5 degrees and less than 60 degrees, the length H3 of the drain inclined pipe (103) is greater than 20 mm, the area of the lower end drain port (105) is greater than 157 mm², the longest height Y2 of the upper end drain port (106) is greater than 10 mm and less than 50 mm, the longest width of the upper end drain port (106) is greater than 10 mm and less than 90 mm, and the area of the upper end drain port (106) is greater than 78.5 mm².

2. The building drain according to claim 1, wherein The area of the upper end drain port (106) is less than the area of the lower end drain port (105), and the area of the lower end drain port (105) is twice or more than twice the area of the upper end drain port (106).

3. The building drainage device according to any one of claims 1 to 2, characterized in that, An upper connecting port (107) is arranged at the upper end of the drain vertical pipe connecting seat (101), a lower connecting port (108) is arranged at the lower end of the drain vertical pipe connecting seat (101), and a sealing element (1) is arranged in the upper connecting port (107) and the lower connecting port (108).

4. The building drain according to claim 3, wherein The sealing element (1) is made of rubber and comprises an outer sealing body (10), an inner sealing body (13), an upper flat sealing body (11) and a lower flat sealing body (12). The upper flat sealing body (11) is connected with the upper end of the outer sealing body (10), the lower flat sealing body (12) is connected with the lower end of the outer sealing body (10), the inner sealing body (13) is located in the outer sealing body (10), the upper end of the inner sealing body (13) is connected with the upper end of the outer sealing body (10), the distance between the inner sealing body (13) and the outer sealing body (10) gradually increases from top to bottom, and the inner diameter of the inner sealing body (13) gradually decreases from top to bottom.

5. The building drain according to claim 4, wherein The outer diameter of the upper flat sealing body (11) is greater than that of the outer sealing body (10), the inner diameter of the outer sealing body (10) is greater than that of the lower flat sealing body (12), and the inner diameter of the lower flat sealing body (12) is equal to or greater than the minimum inner diameter of the inner sealing body (13).

6. The building drain according to claim 5, wherein The outer sealing body (10), the inner sealing body (13) and the lower flat sealing body (12) form an annular cavity (15), and the annular cavity (15) is formed with a side opening between the lower end of the inner sealing body (13) and the upper end surface (14) of the lower flat sealing body (12).

7. The building drain according to claim 6, wherein The inclination angle R1 of the inner sealing body (13) is less than 30 degrees, the total height H1 of the sealing member (1) is greater than 20 mm, and the height H2 of the side opening of the annular cavity (15) is greater than 5 mm.

8. The building drain according to claim 7, wherein The outer sealing body (10) cooperates with the inner wall of the upper receiving port (107) or the lower receiving port (108) to form a side seal, the upper flat sealing body (11) cooperates with the end surface of the upper receiving port (107) or the lower receiving port (108) to form a flat seal, the lower end surface of the lower flat sealing body (12) cooperates with the bottom surface of the upper receiving port (107) or the lower receiving port (108) to form a flat seal, the inner sealing body (13) is used for cooperating with the outer wall of the drainage vertical pipe (2) inserted into the upper receiving port (107) or the lower receiving port (108) to form a side seal, and the upper end surface (14) of the lower flat sealing body (12) is used for cooperating with the end surface of the drainage vertical pipe (2) inserted into the upper receiving port (107) or the lower receiving port (108) to form a flat seal.

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