CN118327114A - Drainage member, bottle-type trap and drainage pipeline system - Google Patents

Abstract

The application discloses a drainage member, a bottle-type trap and a drainage pipeline system. The drainage member includes: a housing; a water inlet channel disposed in the housing; a drain passage provided at a periphery of the housing; and an exhaust passage provided in the housing, the exhaust passage being provided to communicate the water intake passage and the water discharge passage. The drainage member according to the present application can maintain a water seal.

Description

Drainage member, bottle-type trap and drainage pipeline system

Technical Field

The present application relates to building waste water drainage systems, and in particular to a drainage member for connection to a plumbing fixture, a bottle trap with such a drainage member, and a drainage pipe system with such a drainage member or bottle trap.

Background

A trap (also called a water trap or an air-isolation elbow) is a fitting arranged inside a sanitary ware or on a drainage pipe section of the ware. In general, a certain level of water retention is maintained in the trapway, which is known as a water seal. The hydrostatic pressure of the water seal is utilized to resist the air pressure change in the drain pipe, so that the foul smell and harmful gas in the drain pipe system can be isolated from indoor air, and the gas, insects and the like in the pipeline are prevented from entering the room.

The water seal loss in the trap is a major cause of odor in the kitchen and toilet. One of the main causes of the failure of the seal is the siphoning effect of the fluid. When the sanitary ware is drained in a large quantity instantaneously, the trap is filled with water to form a siphon effect, and after the water drainage is finished, the water seal leaves the trap due to the siphon effect. The siphon effect is related to the combination mode of the sanitary ware and the trap, the pipe diameter and the length of the drain pipe.

When sewage of the multi-story building is discharged in large quantity, two kinds of air pressures are formed in the public drain pipe (i.e. main drain pipe), negative pressure air flow is formed above the sewage, and pressurized air flow is formed below the sewage. The negative pressure air flow generates siphon effect to pump out the water storage in the trap, so that the water seal is invalid. Meanwhile, the pressurized air flow below generates a back pressure effect due to the need of pressure reduction, so that the water storage in the trap of the low-rise household sanitary ware is pushed into the room.

There is a plastic anti-siphon bottle type trap, in which a valve is provided, when the siphon effect is caused by the negative pressure generated by the sewage flow direction in the public drain pipe, the valve can be automatically opened to balance the negative pressure in the public drain pipe, so as to avoid the water seal in the trap from being pumped away by the siphon effect, and keep enough water seal. However, valve flooding may occur in case that its production technology is not standardized or installation is incorrect.

Disclosure of Invention

The application provides a drainage member which can keep a water seal.

According to one aspect of the present application, there is provided a drainage member comprising:

A housing;

A water inlet channel disposed in the housing;

A drain passage provided at a periphery of the housing; and

An exhaust passage provided in the housing, the exhaust passage being provided to communicate the water intake passage and the water discharge passage.

According to a drainage member proposed in one aspect of the application, the exhaust channel is immediately adjacent to the water inlet channel and the exhaust channel is parallel to the water inlet channel.

According to a drain member proposed in one aspect of the present application, the exhaust passage has an air inlet at a lower end thereof, the air inlet being in communication with the water inlet passage.

According to a drain member proposed in one aspect of the present application, there is an exhaust port at an upper end of the exhaust passage, the exhaust port communicating with the drain passage.

According to the drainage member set forth in one aspect of the present application, the exhaust passage includes an inner wall adjacent to the water intake passage and an outer wall adjacent to the drainage passage, and a lower end of the inner wall is higher than a lower end of the outer wall.

According to the drainage member proposed in one aspect of the present application, the exhaust passage is spaced from the housing as viewed in a radial direction, and the exhaust passage is located entirely inside the housing.

According to a drain member proposed in one aspect of the application, a water storage channel is provided between the exhaust channel and the housing, the water storage channel at least partially surrounding the exhaust channel.

According to the drainage member set forth in one aspect of the present application, the exhaust port of the exhaust passage does not exceed the water storage passage as viewed in the radial direction.

The application proposes a bottle-shaped trapway with such a drainage member. Since the bottle-shaped trapway is provided with the drainage member according to the application, it is possible to have the advantages as described above.

Furthermore, the application proposes a drain line system with such a drain member or bottle trap. Since the drain pipe system is provided with the drain member or the bottle trap according to the present application, it is possible to have the advantages as described above.

The beneficial effects that the application can realize include: by providing the vent channel in the housing in communication with the water inlet channel and the water outlet channel, a sufficient water seal can be maintained in a simple and reliable manner.

Drawings

The disclosure of the present application is described with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the application. In the drawings, like reference numerals are used to refer to like parts unless otherwise specified. Wherein:

Fig. 1 schematically shows a cross-sectional view of a drainage member according to an embodiment of the application; and

Fig. 2 schematically shows a cross-sectional view of a bottle-shaped trapway according to an embodiment of the application.

Detailed Description

It is to be understood that, according to the technical solution of the present application, those skilled in the art may propose various alternative structural modes and implementation modes without changing the true spirit of the present application. Accordingly, the following detailed description and drawings are merely illustrative of the application and are not intended to be exhaustive or to limit the application to the precise form disclosed.

The terms of directions such as up, down, left, right, front, rear, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to the different positions and the different use states thereof. These and other directional terms should not be construed as limiting terms.

A drainage member according to an embodiment of the present application is shown in connection with fig. 1, where it can be seen that: the drainage member 100 includes: a housing 1, a water inlet passage 2 provided in the housing 1, a water discharge passage 3 provided at a periphery of the housing 1, and an exhaust passage 4 provided in the housing 1. The exhaust passage 4 is provided to communicate the water intake passage 2 with the water discharge passage 3. The water inlet channel 2 is for example cylindrical in shape, and the water outlet channel 3 is for example cylindrical in shape.

The drainage member is located below the sanitary fixture, sewage discharged from the sanitary fixture flows into the drainage member through the water inlet passage 2, and flows out of the drainage member through the water outlet passage 3, and gas flowing along with the sewage flowing into the drainage member or gas flowing due to negative pressure generated in the public drainage pipe can be discharged through the air outlet passage 4.

In the drainage member according to this embodiment, by the exhaust passage 4 provided in the housing 1 so as to communicate the water inlet passage 2 and the drainage passage 3, it is possible to balance a siphon effect caused by negative pressure generated in the common drain pipe due to the flow direction of sewage; because the gas flow passes through the exhaust channel 4 quickly, only a small amount of retained sewage is carried out, and after the siphon effect is finished, the water can fall back to achieve the water sealing effect again. In this way, the pumping of the water seal in the trapway by the siphon effect is reduced as much as possible, so that a sufficient water seal is maintained in a simple and reliable manner.

It should be noted that the expression "a certain component is provided in the housing …" means that the component is at least partially located inside the housing or at least partially enclosed by the housing. Furthermore, "water intake passage", "water discharge passage" and "air discharge passage" are named only according to their respective signifi-cant functions and should not be interpreted restrictively, and in practice, "water intake passage" may also be used for intake, "water discharge passage" may also be used for exhaust, and "air discharge passage" may also be used for drainage.

Further in this embodiment, the exhaust channel 4 is immediately adjacent to the water inlet channel 2, and the exhaust channel 4 is parallel to the water inlet channel 2. In this way, a more compact arrangement of the drainage member is achieved.

In the drainage member according to this embodiment, an air inlet 41 is provided at the lower end of the exhaust passage 4, the air inlet 41 communicating with the water intake passage 2. The intake port 41 is arranged, for example, at the lowermost end of the exhaust passage 4. Further, an exhaust port 42 is provided at an upper end of the exhaust passage 4, the exhaust port 42 being in communication with the drain passage 3. The exhaust port 42 is arranged, for example, at the uppermost end of the exhaust passage 4.

In the embodiment shown in the figures, the air inlet 41 communicates directly with the water inlet channel 2, and the air outlet 42 communicates directly with the water outlet channel 3. Thereby, the gas flow caused by the negative pressure generated in the common drain pipe carries a small amount of sewage remaining in the water intake passage 2 from the water intake passage 2 directly into the exhaust passage 4 through the air intake 41, and directly into the water discharge passage 3 through the air exhaust 42 after passing through the exhaust passage 4.

In an embodiment not shown, the air inlet of the exhaust channel may be in indirect communication with the water inlet channel, e.g. by a further conduit; and the exhaust port of the exhaust channel may be in indirect communication with the drain channel, e.g. via a further conduit. In addition, the exhaust port of the exhaust passage may be in direct or indirect communication with the common drain pipe.

According to the embodiment shown in fig. 1, the exhaust channel 4 comprises an inner wall 43 adjacent to the water inlet channel 2 and an outer wall 44 adjacent to the water outlet channel 3, the lower end of the inner wall 43 being higher than the lower end of the outer wall 44. The inner wall 43 is shared by the exhaust channel 4 and the water inlet channel 2, i.e. the inner wall 43 at least partly defines the exhaust channel 4 and the inner wall 43 at least partly defines the water inlet channel 2. The lower end of the inner wall 43 is higher than the lower end of the outer wall 44 so as to facilitate rapid discharge of the gas flow caused by the negative pressure generated in the common drain pipe and to carry away as little liquid as possible so as to affect the water seal.

In the drainage member according to this embodiment, the exhaust passage 4 is spaced from the housing 1 as viewed in the radial direction, and the exhaust passage 4 is located entirely inside the housing 1. That is, the exhaust passage 4 is radially spaced apart from the housing 1 and is located entirely inside the housing 1. Further, any portion of the exhaust passage 4 in the radial direction does not constitute all or part of the housing 1. Referring to fig. 1, "radial" herein refers to a direction directed outward from the center of the drainage member in a horizontal direction.

In this embodiment, a water storage channel 5 is further provided between the exhaust channel 4 and the housing 1, the water storage channel 5 at least partially surrounding the exhaust channel 4. The water storage channel 5 communicates with the water inlet channel 2 on the one hand and the water discharge channel 3 on the other hand. The water storage channel 5 is located between the water inlet channel 2 and the water discharge channel 3, seen in radial direction.

When the sanitary fixture discharges sewage, the sewage discharged from the sanitary fixture flows into the drainage member through the water inlet channel 2 and flows out of the drainage member at least partially through the water storage channel 5 and the drainage channel 3. After the sanitary ware has been discharged, part of the liquid remains in the water-holding channel 5, thus forming a water seal.

In this embodiment, further still, the exhaust port 42 at the upper end of the exhaust passage 4 is located inside the water storage passage 5 as seen in the radial direction. That is, the exhaust port 42 of the exhaust passage 4 does not exceed at least the water storage passage 5 in the radial direction, and particularly does not exceed the radially outermost side of the water storage passage 5. In this way, the water seal liquid level in the water storage channel 5 is lowered after the gas flow caused by the negative pressure generated in the public drain pipe carries a small amount of sewage remaining in the water inlet channel 2 and is discharged through the air outlet 42; the sewage carried and discharged at this time falls into the water storage passage 5 without being discharged from the drainage member through the drainage passage 3 with the gas flow, thereby reducing the loss of the water seal.

The application also comprises a bottle trap with any one or more of the embodiments of the drainage member described above, which therefore has technical features and technical effects corresponding to those described above, and will not be described in detail herein.

A bottle trap according to an embodiment of the present application is shown in connection with fig. 2, wherein the bottle trap 200 comprises a closure shell 201 below the housing of the drain member, which closure shell is connected to the housing of the drain member, for example by means of threads, and a seal is also provided at the connection of the closure shell to the housing of the drain member. The lower end of the bottle trap is thereby sealed and may accommodate a water seal in the enclosed space thus formed. The bottle trap further includes a connection pipe 202 inserted in the water inlet passage of the drain member for connection with the sanitary fixture. And a sealing piece is arranged at the joint of the water inlet channel of the drainage component and the connecting pipe. The closing shell 201 is for example cylindrical in shape, and the connecting tube 202 is for example cylindrical in shape.

The application also comprises a drainage pipe system with any one or more of the drainage members of the previous embodiments or the bottle-shaped trapway of any one or more of the previous embodiments, which therefore has technical features and has technical effects corresponding to those of the previous description, and therefore will not be repeated here.

The technical scope of the present application is not limited to what has been described in the above description, and those skilled in the art can make variations and modifications to the above-described embodiments without departing from the technical spirit of the present application, and these variations and modifications should be included in the scope of the present application.

Claims (10)

1. A drainage member, the drainage member comprising:

A housing (1);

A water inlet channel (2) arranged in the housing;

A drain channel (3) provided at the periphery of the housing; and

An exhaust passage (4) provided in the housing, the exhaust passage being provided to communicate the water intake passage and the water discharge passage.

2. The drain member of claim 1, wherein the exhaust channel is immediately adjacent to the water inlet channel and the exhaust channel is parallel to the water inlet channel.

3. A drainage member according to claim 1, characterized in that at the lower end of the exhaust channel there is an air inlet (41) which communicates with the water inlet channel.

4. The drain member according to claim 1, wherein a vent (42) is provided at an upper end of the vent passage, the vent being in communication with the drain passage.

5. The drain member according to claim 1, wherein the exhaust channel comprises an inner wall (43) adjacent the water inlet channel and an outer wall (44) adjacent the drain channel, the lower end of the inner wall being higher than the lower end of the outer wall.

6. The drain member according to claim 1, wherein the exhaust passage is spaced from the housing as seen in a radial direction, and the exhaust passage is located entirely inside the housing.

7. A drainage member according to claim 6, characterized in that a water storage channel (5) is provided between the exhaust channel and the housing, which water storage channel at least partly surrounds the exhaust channel.

8. The drain member according to claim 7, wherein the exhaust port of the exhaust passage does not exceed the water storage passage as seen in a radial direction.

9. A bottle trap, characterized in that it comprises a drainage member according to any one of claims 1 to 8.

10. A drainage pipe system, characterized in that it comprises a drainage member according to any one of claims 1 to 8 or a bottle trap according to claim 9.