Water seal device of super high-rise drainage system

Abstract

The utility model discloses a water seal device of a super high-rise drainage system. The pipe diameter of a bent pipe is larger than or equal to the pipe diameter of a first straight pipe and the pipe diameter of a second straight pipe. One end of the branch pipe is communicated with the joint of the first straight pipe, the second straight pipe and the bent pipe, and the other end of the branch pipe is open; the screw cap is fixedly arranged at the open end, away from the bent pipe, of the branch pipe, and the open end of the screw cap is in threaded connection with the open end of the branch pipe. The pipe diameter of the bent pipe is larger than or equal to the pipe diameters of the first straight pipe and the second straight pipe, so that water flowing into the bent pipe can be continuously supplemented with water flowing out of the bent pipe by utilizing different pipe diameters of the bent pipe, the first straight pipe and the second straight pipe when a plurality of sanitary wares drain water, and the height of a water column is kept stable; the phenomenon that the water seal is easily damaged due to insufficient water in the bent pipe caused by water loss is avoided, and the stable drainage capacity of the drainage system is guaranteed. And the screw cap is fixedly connected with one end of the branch pipe to form sealing so as to ensure that odor in the drainage system does not leak to an indoor space.

Description

Technical Field

[0001] This application relates to the technical field of water seal devices, and particularly to a water seal device for a super high-rise drainage system. Background Art

[0002] In a building drainage system, a water seal device refers to a device with a certain height of water column that is installed under the drainage outlet of a single sanitary appliance or under the confluence outlet of multiple sanitary appliances to resist the air pressure change in the drainage pipe and prevent the odor in the drainage pipe system from entering the room, usually realized by a water storage structure.

[0003] Common water seal devices include "S"-type and "P"-type trap bends, both with a water seal height of 50 mm (able to resist an air pressure of ±400 Pa), and the pipe diameter is the same as that of the connected pipe. However, the "S"-type trap bend is more likely to form a siphon and break the water seal. Even for the "P"-type trap bend, when the pressure fluctuation in the drainage system is greater than the pressure at which the water seal is broken, it will also cause the odor in the drainage system to reverse into the room; when the resistance of the trap bend is too large, it will block the indoor drainage from flowing into the drainage system normally. In addition, as the building height increases, the air pressure and its pressure fluctuation in the drainage system will also increase. The original water seal with a height of 50 mm and the same pipe diameter for the trap bend pipe and the connecting pipe cannot resist the gas pressure in the riser when the drainage flow is the same as that of an ordinary high-rise building. Therefore, many designers divide the super high-rise into several vertical sections for drainage respectively, reducing the number of floors served by each independent super high-rise drainage system, resulting in a significant reduction in the drainage capacity of the super high-rise drainage system compared to an ordinary high-rise building.

[0004] Therefore, there is an urgent need for a water seal device with strong drainage capacity to be applied to the super high-rise drainage system. Utility Model Content

[0005] By providing a water seal device for a super high-rise drainage system in an embodiment of this application, it aims to ensure the stable drainage of the drainage system while ensuring the stability of the water seal performance of the water seal device.

[0006] To achieve the above object, the embodiment of this application provides the following technical solutions: A water seal device for a super high-rise drainage system, including a first straight pipe, a second straight pipe, a bend pipe, a branch pipe, and a screw cap; the first straight pipe is arranged below an external sanitary appliance, the input end of the first straight pipe is communicated with the output end of the external sanitary appliance, the output end of the first straight pipe is communicated with the input end of the second straight pipe, the second straight pipe is communicated with the input end of the external drainage system, the bend pipe is arranged between the first straight pipe and the second straight pipe, and the input end and the output end of the bend pipe are respectively communicated with the output end of the first straight pipe and the input end of the second straight pipe;

[0007] The pipe diameter of the bend pipe is greater than or equal to the pipe diameters of the first straight pipe and the second straight pipe;

[0008] The branch pipe is arranged above the elbow pipe. One end of the branch pipe is communicated with the connection part of the first straight pipe, the second straight pipe and the elbow pipe, and the other end is open.

[0009] The screw cap is fixedly arranged at the open end of the branch pipe far away from the elbow pipe. An annular plate is fixedly connected to the inner wall of the open end of the screw cap, and the end of the annular plate abuts against the open end of the branch pipe.

[0010] Preferably, the diameter of the elbow pipe is larger than the diameters of the first straight pipe and the second straight pipe.

[0011] Preferably, the diameter of the elbow pipe is equal to the diameters of the first straight pipe and the second straight pipe.

[0012] Preferably, an annular groove is formed in the end face of the open end of the branch pipe along the axial length direction away from the elbow pipe, and the width of the annular groove is the same as the thickness of the end of the annular plate.

[0013] Preferably, the annular plate includes a horizontal section and a vertical section;

[0014] One end of the horizontal section is fixedly connected to the inner wall of the open end of the screw cap, and the other end of the horizontal section extends horizontally inward along the radial direction of the screw cap and is fixedly connected to one end of the vertical section;

[0015] The other end of the vertical section extends horizontally along the axial length direction of the screw cap into the cavity of the annular groove.

[0016] Preferably, a sealing ring is further included. The sealing ring is embedded in the cavity of the annular groove and is movably connected with the annular groove. The sealing ring is slidably connected with the vertical section, and part of the end face of the sealing ring abuts against the end face of the vertical section.

[0017] Preferably, the screw cap and the annular plate are of an integral structure.

[0018] Preferably, the branch pipe, the first straight pipe, the second straight pipe and the elbow pipe are of an integral structure.

[0019] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:

[0020] In this application, the diameter of the elbow pipe is close to the diameters of the first straight pipe and the second straight pipe. Such a setting can ensure that when multiple sanitary appliances drain water, by using the different diameters of the elbow pipe, the first straight pipe and the second straight pipe, the water flowing through the elbow pipe and the water originally existing in the elbow pipe can be stably compensated, avoiding the formation of siphon due to the water level fluctuation in the elbow pipe caused by water volume loss. The screw cap is fixedly connected to one end of the branch pipe, and the annular plate arranged at the open end of the screw cap abuts against the open end of the branch pipe to form a contact seal, so as to ensure that the pressure fluctuation difference in the drainage system is in a stable state. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments of the present invention or the prior art. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the structure provided by the embodiment of the present application, where the diameter of the bent pipe is larger than that of the first straight pipe and the second straight pipe;

[0023] Figure 2 Schematic diagram of the structure provided by the embodiment of the present application with a single branch pipe;

[0024] Figure 3 For Figure 2 Partial enlarged view of area A in

[0025] Figure 4 Schematic diagram of the structure provided by the embodiment of the present application, where the first straight pipe and the second straight pipe are a single integral body.

[0026] Reference numerals: 10 - first straight pipe; 20 - second straight pipe; 30 - bent pipe; 40 - branch pipe; 41 - annular groove; 50 - screw cap; 51 - annular plate; 511 - horizontal section; 512 - vertical section; 60 - sealing ring; 70 - partition plate. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0029] Combined with Figures 1-3 As shown, a water seal device for a super high-rise drainage system includes a first straight pipe 10 and a second straight pipe 20. The first straight pipe 10 is arranged below an external sanitary appliance. The input end of the first straight pipe 10 is communicated with the output end of the external sanitary appliance. The output end of the first straight pipe 10 is communicated with the input end of the second straight pipe 20. The second straight pipe 20 is communicated with the input end of the external drainage system. A bent pipe 30 is arranged between the first straight pipe 10 and the second straight pipe 20. The input end and the output end of the bent pipe 30 are respectively communicated with the output end of the first straight pipe 10 and the input end of the second straight pipe 20. It further includes a branch pipe 40 and a screw cap 50. The diameter of the bent pipe 30 is greater than or equal to the diameters of the first straight pipe 10 and the second straight pipe 20. The branch pipe 40 is arranged above the bent pipe 30. One end of the branch pipe 40 is communicated with the connection part of the first straight pipe 10, the second straight pipe 20 and the bent pipe 30, and the other end is open. The screw cap 50 is fixedly arranged at the open end of the branch pipe 40 away from the bent pipe 30. An annular plate 51 is fixedly connected to the inner wall of the open end of the screw cap 50, and the end of the annular plate 51 abuts against the open end of the branch pipe 40.

[0030] The water seal device in this application is mainly applied to the drainage systems of super high-rise buildings or high-rise buildings. The water seal device in this application includes a first straight pipe 10, a second straight pipe 20, a bent pipe 30, a branch pipe 40, and a screw cap 50. Among them, the first straight pipe 10 and the second straight pipe 20 are used for connecting the bent pipe 30 and the drainage system in the building to facilitate the discharge of wastewater. The bent pipe 30 is connected between the first straight pipe 10 and the second straight pipe 20, forming a water seal for the wastewater flowing through the first straight pipe 10 and the second straight pipe 20 to ensure that the pressure inside the drainage system is in a stable state when the external sanitary ware drains. The diameter of the bent pipe 30 in this application is close to the diameters of the first straight pipe 10 and the second straight pipe 20. Such a setting can ensure that when multiple sanitary wares drain, the water flowing through the bent pipe 30 and the water originally existing in the bent pipe 30 can be stably compensated by using the different diameters of the bent pipe 30, the first straight pipe 10, and the second straight pipe 20, avoiding the formation of siphon due to water volume loss resulting in water flow fluctuations in the bent pipe 30. The branch pipe 40 is vertically arranged and connected to the joints of the first straight pipe 10, the second straight pipe 20, and the bent pipe 30. On the one hand, it forms a pressure stabilizing effect when the bent pipe 30, the first straight pipe 10, and the second branch straight pipe drain. On the other hand, it is convenient for the staff to clean the dirt deposited at the bottom of the bent pipe 30. The screw cap 50 is fixedly connected to one end of the branch pipe 40, and the ring plate 51 arranged at the open end of the screw cap 50 abuts against the open end of the branch pipe 40 to form a contact seal, so as to ensure that the pressure fluctuation difference in the drainage system is in a stable state. The screw cap 50 in this application is threadedly connected to the open end of the branch pipe 40, so that the inner wall of the screw cap 50 fits with the outer wall of the branch pipe 40 to seal the lumen of the branch pipe 40 and prevent air leakage.

[0031] The number of the branch pipes 40 in this application can be one or two, and this application does not make a limitation. Preferably, two branch pipes 40 are provided in this application. The two branch pipes 40 are respectively arranged at both ends where the bent pipe 30 is connected to the first straight pipe 10 and the second straight pipe 20, providing two pressure stabilizing spaces when the bent pipe 30, the first straight pipe 10, and the second straight pipe 20 drain.

[0032] The diameter of the bent pipe 30 is larger than the diameters of the first straight pipe 10 and the second straight pipe 20. During the drainage process of a single external sanitary ware, when the diameter of the bent pipe 30 is larger than the diameters of the first straight pipe 10 and the second straight pipe 20, the water flow rate and gas pressure in the first straight pipe 10 and the second straight pipe 20 are less than the water storage volume inside the lumen of the bent pipe 30. In this way, it is ensured that there is enough space in the lumen of the bent pipe 30 to store the water output from the downstream end of the first straight pipe 10 and relieve the pressure generated when the first straight pipe 10 drains.

[0033] The pipe diameter of the elbow pipe 30 is equal to that of the first straight pipe 10 and the second straight pipe 20. When multiple external sanitary appliances are draining water, when the pipe diameter of the elbow pipe 30 is equal to that of the first straight pipe 10 and the second straight pipe 20, the water flow rate and gas pressure in the first straight pipe 10 and the second straight pipe 20 can always be greater than the water storage volume and pressure inside the pipe cavity of the elbow pipe 30. In this way, it is ensured that the pipe cavity of the elbow pipe 30 is always in a saturated state, and at the same time, when multiple external sanitary appliances drain water simultaneously, the different drainage volumes of individual external sanitary appliances are avoided from causing the water in the elbow pipe 30 to fluctuate up and down to form a siphon, resulting in water loss.

[0034] As Figure 4 shown, when the water seal device is connected to a single drainage pipeline, the first straight pipe 10 and the second straight pipe 20 in the present application can be an integral through pipe. The connection part between the through pipe and the elbow pipe 30 is an open section, and a partition plate 70 is vertically arranged at the connection part between the through pipe and the elbow pipe 30. One end of the partition plate 70 is fixedly connected to the inner wall of the side of the through pipe away from the elbow pipe 30, and the other end of the partition plate 70 extends into the pipe cavity of the elbow pipe 30. The purpose of setting the partition plate 70 is to limit the flow of water flowing from the through pipe into the elbow pipe 30, so as to ensure that the loss and compensation of the water storage volume inside the elbow pipe 30 are always in a balanced state, and further ensure the stable drainage capacity of super high floors. In addition, the partition plate 70 and the through pipe in the present application can be an integral structure to ensure the stable connection between the partition plate 70 and the through pipe.

[0035] In order to facilitate the abutting and cooperation between the end of the ring plate 51 and the open end of the branch pipe 40, a ring groove 41 is opened on the end face of the open end of the branch pipe 40 along the axial length direction away from the elbow pipe 30. The groove width of the ring groove 41 is the same as the thickness of the end of the ring plate 51. The purpose of such setting is to ensure that the side face of the end of the ring plate 51 fits with the groove wall of the ring groove 41, and to avoid the end of the ring plate 51 from separating from the main pipe.

[0036] The ring plate 51 includes a horizontal section 511 and a vertical section 512; one end of the horizontal section 511 is fixedly connected to the inner wall of the open end of the screw cap 50, the other end of the horizontal section 511 extends horizontally inward along the radial direction of the screw cap 50 and is fixedly connected to one end of the vertical section 512; the other end of the vertical section 512 extends horizontally along the axial length direction of the screw cap 50 into the groove cavity of the ring groove 41.

[0037] The ring plate 51 in the present application includes a horizontal section 511 and a vertical section 512. The horizontal section 511 and the vertical section 512 integrally combine the ring plate 51 into an L-shaped cross-sectional profile. Since one end of the vertical section 512 extends into the groove cavity of the ring groove 41 and its thickness is the same as the groove cavity of the ring groove 41, the inner side faces of the vertical section 512 and the horizontal section 511 form a seal between the inner wall of the branch pipe 40 and the outer wall of the screw cap 50, further avoiding the air pressure imbalance caused by the backflow of air when the drainage system drains water, resulting in the damage of the water seal at the elbow pipe 30.

[0038] The water seal device of the super high-rise drainage system further includes a sealing ring 60. The sealing ring 60 is embedded in the cavity of the annular groove 41 and is movably connected to the annular groove 41. The sealing ring 60 is slidably connected to the vertical section 512, and a part of the end face of the sealing ring 60 abuts against the end face of the vertical section 512.

[0039] In this application, the sealing ring 60 is embedded in the cavity of the annular groove 41, and the end of the vertical section 512 abuts against the end face of the sealing ring 60. During the process of screwing the rotary cap 50 onto the branch pipe 40, the end of the vertical section 512 continuously presses against the end face of the sealing end, so that the peripheral surface of the sealing ring 60 is completely attached to the groove wall of the annular groove 41, avoiding the escape of air through the gaps between the sealing ring 60 and the groove, the groove and the vertical section 512, and the vertical section 512 and the sealing ring 60, resulting in air pressure imbalance in the first straight pipe 10, the second straight pipe 20, and the elbow 30. The cross-sectional shape of the sealing ring 60 in this application can be square, circular, star-shaped, etc., which is not limited in this application.

[0040] The rotary cap 50 and the annular plate 51 are of an integral structure. The purpose of this setting is to ensure the structural stability of the annular plate 51 and avoid damage to the annular plate 51 caused by the stress generated when the end of the annular plate 51 and the end of the branch pipe 40 are pressed against each other during the threaded connection of the rotary cap 50.

[0041] The branch pipe 40, the first straight pipe 10, the second straight pipe 20, and the elbow 30 are of an integral structure. The purpose of this setting is to ensure that a cavity with good airtightness can be formed after the branch pipe 40, the first straight pipe 10, the second straight pipe 20, and the elbow 30 are interconnected, so as to ensure the stable water seal performance of the water seal device in this application. The staff can use the injection molding process to make the water seal device in this application at one time, avoiding the risk of leakage caused by the combination of multiple pipelines and saving the working intensity of the staff.

[0042] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. The key points of each embodiment are the differences from other embodiments.

[0043] The above embodiments are only used to illustrate the technical solutions of this application, rather than to limit this application; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of this application.

Claims

1. A water seal device for a super high-rise drainage system, characterized in that: It comprises a first straight tube (10), a second straight tube (20), a curved tube (30), a branch tube (40), and a screw cap (50); The first straight pipe (10) is arranged below the external sanitary ware, the input end of the first straight pipe (10) is connected to the output end of the external sanitary ware, the output end of the first straight pipe (10) is connected to the input end of the second straight pipe (20), the second straight pipe (20) is connected to the input end of the external drainage system, the bent pipe (30) is arranged between the first straight pipe (10) and the second straight pipe (20), the input end and the output end of the bent pipe (30) are respectively connected to the output end of the first straight pipe (10) and the input end of the second straight pipe (20); The diameter of the curved pipe (30) is greater than or equal to the diameters of the first straight pipe (10) and the second straight pipe (20); The branch pipe (40) is arranged above the curved pipe (30), one end of the branch pipe (40) is connected to the connection between the first straight pipe (10), the second straight pipe (20) and the curved pipe (30), and the other end thereof is open; The rotary cover (50) is fixedly arranged at the open end of the branch pipe (40) away from the bent pipe (30), and a ring plate (51) is fixedly connected to the inner wall of the open end of the rotary cover (50), and the end of the ring plate (51) contacts the open end of the branch pipe (40).

2. The water seal device of the super high-rise drainage system according to claim 1, characterized in that: The diameter of the curved pipe (30) is greater than the diameters of the first straight pipe (10) and the second straight pipe (20).

3. The water seal device of the super high-rise drainage system according to claim 2, characterized in that: The diameter of the curved pipe (30) is equal to the diameters of the first straight pipe (10) and the second straight pipe (20).

4. The water seal device of the super high-rise drainage system according to claim 1, characterized in that: An annular groove (41) is provided on the end surface of the open end of the branch pipe (40) along the axial length direction thereof, on the side away from the bent pipe (30), and the groove width of the annular groove (41) is consistent with the end thickness of the ring plate (51).

5. The water seal device of the super high-rise drainage system according to claim 4, characterized in that: The ring plate (51) comprises a horizontal section (511) and a vertical section (512); One end of the horizontal section (511) is fixedly connected to the inner wall of the opening end of the rotary cover (50), and the other end of the horizontal section (511) extends horizontally inward along the radial direction of the rotary cover (50) and is fixedly connected to one end of the vertical section (512); The other end of the vertical section (512) extends horizontally along the axial length direction of the rotary cover (50) into the groove cavity of the annular groove (41).

6. The water seal device of the super high-rise drainage system according to claim 5, characterized in that: It also includes a sealing ring (60), which is embedded in the groove cavity of the annular groove (41) and movably connected to the annular groove (41), and the sealing ring (60) is slidably connected to the vertical section (512), and a part of the end surface of the sealing ring (60) is in contact with the end surface of the vertical section (512).

7. The water seal device of the super high-rise drainage system according to claim 1, characterized in that: The rotary cover (50) and the ring plate (51) are an integrated structure.

8. The water seal device of the super high-rise drainage system according to claim 1, characterized in that: The branch pipe (40), the first straight pipe (10), the second straight pipe (20), and the curved pipe (30) are an integrated structure.

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