CN214219866U - Air-isolating structure - Google Patents

Abstract

The utility model discloses a gas insulation structure, include: the water inlet is communicated with the accommodating cavity, the bottom end of the main body is closed, and the side wall of the main body is provided with a water outlet which is communicated with the accommodating cavity; and the baffle, baffle slant downwardly fixing locate and hold the intracavity, arrange in between water inlet and the outlet for the water inlet is located the top of baffle, and the outlet is located the below of baffle, and leaves the passageway between the bottom of baffle and the lateral wall and the diapire of main part, and the passageway is less than the outlet. Among the gas isolation structure, thereby the main part can not take place deformation owing to the support of baffle, can not influence the height of main part internal ponding, when can effectively drainage, can effectively avoid the intraoral bacterium of drainage, pest or foul smell to flow backward to the main part and discharge to indoor from the water inlet.

Description

Air-isolating structure

Technical Field

The utility model relates to a building drainage technology field, concretely relates to gas insulation structure.

Background

In a drainage pipeline system in the building field, because the drainage channels of all floors are tightly connected with a public drainage pipeline of the whole building, the drainage channels of indoor kitchen and bathroom appliances such as vegetable washing basins, hand washing basins and the like are generally provided with trap or air-isolating bend, and bacteria, pests and odor in the public drainage pipeline are prevented from entering the room by water seal, so that the influence on the daily life and the body health of residents is avoided.

At present, a U-shaped corrugated pipe trap is commonly used for a drainage channel of a kitchen and a toilet and is connected with a public drainage pipeline, but the U-shaped corrugated pipe trap is easy to deform, so that the water seal height does not reach the standard or is invalid, and bacteria, pests and odor cannot be effectively isolated.

SUMMERY OF THE UTILITY MODEL

Therefore, the air isolation structure of the hand basin is not easy to deform in structure and has unchanged water seal depth, so that the problem that the water seal height of the U-shaped corrugated pipe trap is easy to deform to influence the isolation effect is solved.

A gas barrier structure comprising: the water inlet is communicated with the accommodating cavity, the bottom end of the main body is closed, and a water outlet is formed in the side wall of the main body and communicated with the accommodating cavity; and the baffle plate is obliquely downwards arranged in the accommodating cavity and is arranged between the water inlet and the water outlet, so that the water inlet is positioned above the baffle plate, the water outlet is positioned below the baffle plate, a channel is reserved between the bottom end of the baffle plate and the side wall and the bottom wall of the main body, and the channel is lower than the water outlet.

In the air separation structure, a water inlet is formed in the top end of the main body, a water outlet is formed in the side wall of the main body, the bottom end of the main body is sealed, a containing cavity is formed in the main body, the partition plate is arranged in the containing cavity and arranged between the water inlet and the water outlet, so that the water inlet and the water outlet are separated, the water inlet is located above the partition plate, the water outlet is located below the partition plate, meanwhile, a channel is reserved between the bottom end of the partition plate and the side wall and the bottom wall of the main body, and the channel is lower than the water outlet. When the air separation structure is used, water enters the main body from the water inlet and flows into the channel along the partition plate, the water is accumulated in the accommodating cavity through the channel, and when the height of accumulated water reaches the water outlet, the water is discharged from the water outlet. Because the outlet is located the lateral wall of main part, so that it has ponding to form the water seal to hold the intracavity, the baffle will the water inlet with when the outlet is divided, hold the ponding of intracavity will the passageway the outlet with the water inlet is separated, thereby can effectively avoid the intraoral bacterium of drain, pest or foul smell flow backward extremely in the main part and follow the water inlet discharges to indoor. Meanwhile, the partition plate is obliquely arranged in the main body and can support the side wall of the main body, so that the main body is prevented from deforming due to pressure change in a pipeline to change the height of a water seal, and the isolation effect of the gas isolation structure is influenced.

The technical solution is further explained below:

in one embodiment, the side edges of the partition are in contact connection with the side walls of the main body.

In one embodiment, the baffle plate is at an angle of 20 ° to 30 ° to the axis of the body.

In one embodiment, the height of the water outlet from the bottom end of the main body is 100mm-110 mm.

In one embodiment, the height of the drain port from the bottom end of the main body is 102 mm.

In one embodiment, the water inlet is provided with a thread for connection with a water inlet pipe.

In one embodiment, the water inlet device further comprises a sealing ring, wherein the sealing ring is arranged in the water inlet, and the sealing ring is arranged below the thread.

In one embodiment, the water outlet device further comprises a water outlet pipe, the water outlet pipe is connected with the water outlet, the water outlet pipe is communicated with the main body, and the included angle between the water outlet pipe and the water inlet is not less than 90 degrees.

In one embodiment, the inner diameter of the main body is larger than that of the drain pipe, and the ratio of the inner diameter of the main body to the inner diameter of the drain pipe is 2.5:2-3.5: 2.

In one embodiment, the body, the partition, and the drain pipe are of an integrally formed structure.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of a gas barrier structure;

FIG. 2 is a perspective view of the gas barrier structure shown in FIG. 1 from another perspective;

FIG. 3 is a cross-sectional view of section A-A of FIG. 1;

fig. 4 is an enlarged view of the structure at the circle B in fig. 3.

Description of reference numerals:

10. a main body; 20. a partition plate; 30. a seal ring; 40. a drain pipe; 110. an accommodating chamber; 112. a water inlet; 1122. a thread; 1124. a boss; 114. a water outlet; 116. a channel.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 3, in one embodiment, a gas barrier structure is provided, which includes a main body 10 and a partition 20. The main body 10 is provided with a containing cavity 110, the top end of the main body 10 is provided with a water inlet 112, the water inlet 112 is communicated with the containing cavity 110, the bottom end of the main body 10 is closed, the side wall of the main body 10 is provided with a water outlet 114, and the water outlet 114 is communicated with the containing cavity 110. The partition plate 20 is obliquely disposed in the accommodating chamber 110 and disposed between the water inlet 112 and the water outlet 114, such that the water inlet 112 is located above the partition plate 20, the water outlet 114 is located below the partition plate 20, a passage 116 is left between the bottom end of the partition plate 20 and the side wall and the bottom wall of the main body 10, and the passage 116 is lower than the water outlet 114.

In the above air-isolating structure, the top end of the main body 10 is provided with the water inlet 112, the side wall of the main body 10 is provided with the water outlet 114, the bottom end of the main body 10 is closed, the accommodating cavity is formed in the main body 10, the partition plate 20 is arranged in the accommodating cavity 10, the partition plate 20 is arranged between the water inlet 112 and the water outlet 114, so as to separate the water inlet 112 from the water outlet 114, the water inlet 112 is located above the partition plate 20, the water outlet 114 is located below the partition plate 20, meanwhile, a channel 116 is left between the bottom end of the partition plate 20 and the side wall and the bottom wall of the main body 10, and the channel 116 is lower than the water outlet 112. When the air-isolating structure is used, water enters the main body 10 from the water inlet 112, flows into the channel 116 along the partition plate 20, passes through the channel 116, accumulates in the accommodating cavity 110, and is discharged from the water outlet 114 when the height of accumulated water reaches the water outlet 114. Because the drainage port 114 is located on the side wall of the main body 10, so that water is stored in the accommodating chamber 110 to form a water seal, the baffle 20 separates the water inlet 112 from the drainage port 114, and meanwhile, the channel 116, the drainage port 114 and the water inlet 112 are separated by the water stored in the accommodating chamber 110, thereby effectively preventing bacteria, pests or odors in the drainage port 114 from flowing backward into the main body 10 and being discharged into a room from the water inlet 112. Meanwhile, the partition plate 20 is obliquely arranged in the main body 10, and the partition plate 20 can support the side wall of the main body 10, so that the main body 10 is prevented from deforming due to pressure change in a pipeline, the water seal height is prevented from being changed, and the isolation effect of the gas isolation structure is prevented from being influenced.

Referring to fig. 3, in addition to the above-mentioned embodiments, in one embodiment, in order to make the partition plate 20 effectively prevent bacteria, pests or odors at the drainage port 114 from flowing backward into the room and ensure normal drainage of water flow, the side edge of the partition plate 20 is in contact with the side wall of the main body 10. In this manner, the side edges of the partition 20 are completely attached to the side walls of the main body 10, except that the bottom end of the partition 20 is not in contact with the side walls and the bottom wall of the main body 10, so that there is no gap between the side edges of the partition 20 and the side walls of the main body 10. Therefore, bacteria, vermin or odor at the drain opening 114 do not overflow or climb out from between the partition 20 and the sidewall of the main body 10.

The partition plate 20 is inclined in the main body 10 to separate the water inlet 112 and the water outlet 114 such that the water inlet 112 is positioned above the partition plate 20 and the water outlet 114 is positioned below the partition plate 20, and water discharged from the water inlet 112 flows along the surface of the partition plate 20 to the passage 116. Thus, the baffle 20 can effectively reduce the water flow resistance and improve the drainage efficiency.

In this embodiment, the partition plate 20 is disposed in the main body 10 in an inclined manner, so that when water is discharged from the water inlet 112 and then flows down to the passage 116, the flowing speed of the water gradually increases as the space through which the water flows gradually decreases, which is beneficial to discharging the water from the water outlet 114 through the passage 116, and improves the water discharge effect of the air-tight structure.

Specifically, the partition 20 disposed in the accommodating chamber 110 is disposed obliquely downward, and the surface thereof is a smooth and flat panel, which can reduce the resistance of water. Optionally, the surface of the partition 20 may be further provided with a guiding groove or a guiding plate for guiding water to rapidly enter the channel 116, so as to reduce the flow resistance of water and increase the flow speed of water. It should be noted that the specific shape of the surface of the partition board 20 is not particularly limited.

Specifically, the partition plate 20 has a semi-elliptical shape, and the bottom end of the partition plate 20 is a face parallel to the bottom wall of the main body 10. Alternatively, the shape of the bottom surface portion of the separator 20 may be the same as the shape of the top end of the separator 20 in the present embodiment, so that the separator 20 is an oval-shaped plate having a smooth surface.

Alternatively, the shape of the partition 20 may be a curved panel with a certain curvature or a semi-cylindrical shape, and it should be noted that the specific shape of the partition 20 is not limited by the characteristics, as long as the bottom end of the partition 20 is not in contact with the side wall and the bottom wall of the main body 10, the channel 116 is left, and the side edge of the partition 20 is completely attached to the side wall of the main body 10.

In this embodiment, the height of the bottom end of the partition board 20 from the bottom wall of the main body 10, that is, the height of the channel 116 and the distance of the bottom end of the partition board 20 from the side wall of the main body 10 are not specifically limited, and it is only required to ensure that the bottom end of the partition board 20 is placed in the accumulated water in the main body 10, and the range of the height of the channel 116 and the distance of the bottom end of the partition board 20 from the side wall of the main body 10 do not affect the circulation effect of the water.

In addition to the above embodiments, in one embodiment, the angle between the baffle 20 and the axial line of the main body 10 is 20 ° to 30 °.

Specifically, the angle value of the included angle between the partition board 20 and the axial line of the main body 10 can be adjusted according to the actual requirement. Optionally, the baffle 20 is angled at 25 ° to the axis of the body 10.

In addition to the above embodiments, in one embodiment, the height of the drain opening 114 from the bottom end of the main body 10 is 100mm to 110 mm. Thus, the water seal depth in the main body 10 is 100mm-110mm, so that the accumulated water in the main body 10 is not easy to dry up, and a good isolation effect can be kept for a long time.

Optionally, the drain opening 114 is 102mm high from the bottom end of the main body 10. Thus, the depth of the water seal in the main body 10 is 102 mm. Due to the ultra-deep water seal, the water in the main body 10 is not easy to dry up, the bottom end of the partition plate 20 is still in the accumulated water, and the air-isolating device can still effectively isolate the bacteria, pests or odor in the water outlet 114 which may flow backwards.

In this embodiment, in order to realize the ultra-deep water seal, the height of the main body 10 is set to 200mm to 230mm, and optionally, the height of the main body 10 is 227mm, so that the drain port 114 is located at a central position of the side wall of the main body 10.

In addition to the above embodiments, in one embodiment, the water inlet 112 is provided with a thread 1122 for connecting with a water inlet pipe (not shown).

It should be noted that, on the side wall of the main body 10, a screw 1122 is provided inside the water inlet 112 for connecting with the water inlet pipe, and the connecting end of the water inlet pipe should also be provided with a second screw (not shown), and the second screw is cooperatively connected with the screw 1122, i.e. the water inlet pipe is threadedly connected with the water inlet 112 in the air-tight structure. In this manner, the water inlet pipe can be stably mounted in the air-tight structure by the screw 1122. Because the threaded connection has certain leakproofness, therefore can avoid the water of inlet to spill over at the junction of main part 10 and inlet tube, simultaneously, through threaded connection, when the gas barrier structure or inlet tube appear damaging or need maintain or need wash, only need the second screw in the counter rotation inlet tube and the screw 1122 in the inlet 112 can. It is thus clear that the threaded connection can be convenient for the inlet tube or the gas-insulated structure to be dismantled and changed except that the inlet tube can be guaranteed to be installed stably with the gas-insulated structure and the water that effectively prevents to get into the water inlet spills over the junction.

Referring to fig. 3 and 4, on the basis of the above embodiments, in an embodiment, the air-tight structure further includes a sealing ring 30, the sealing ring 30 is disposed in the water inlet 112 and located on the side wall of the main body 10, and the sealing ring 30 is disposed below the thread 1122. Thus, the sealing performance of the air-tight structure can be improved by the sealing ring 30, and the water at the water inlet 112 is prevented from overflowing from the gap at the joint, so that the sealing performance of the air-tight structure is ensured.

Further, an annular boss 1124 is provided on the side wall of the main body 10 below the thread 1122, and the annular boss 1124 is used for placing the sealing ring 30, so that the sealing ring 30 is placed above the annular boss 1124 by fastening or adhering with a fastener. Specifically, the sealing ring 30 has a ring shape, and the outer diameter of the sealing ring 30 is equal to the inner diameter of the main body 10. Specifically, the seal ring 30 may be made of a corrosion resistant rubber material. Specifically, the inner diameter dimension of the annular boss 1124 is less than or equal to the inner diameter dimension of the seal ring 30 for better support of the seal ring 30.

Optionally, a filter screen (not shown) may be disposed below the screw 1122 in the air-tight structure. Specifically, the filter is placed on the top end of the sealing ring 30 so as to filter again the impurities discharged into the water in the main body 10, preventing the impurities from entering the main body 10 and depositing on the bottom of the main body 10, thereby preventing the clogging of the passage 116. Meanwhile, the valuables can be prevented from accidentally falling into the pipeline, and unnecessary loss is avoided. For example, when the ring is placed on the wash basin, the ring accidentally enters the drain hole in the wash basin and then reaches the filter screen in the main body 10, so that the water inlet pipe is separated from the main body 10 in a detachable mode without affecting the normal drainage of the main body 10 and damaging the air isolation structure, and the ring is taken out to avoid unnecessary loss.

Referring to fig. 1 to 3, on the basis of the above embodiments, in one embodiment, the water discharging pipe 40 is further included, the water discharging pipe 40 is connected to the water discharging port 114, such that the water discharging pipe 40 is communicated with the main body 10, and an included angle between the water discharging pipe 40 and the water inlet 112 is not less than 90 °. Specifically, in the present embodiment, the angle between the water outlet pipe 40 and the water inlet 116 is 90 °.

Alternatively, the included angle between the drain pipe 40 and the water inlet 112 is greater than 90 °, and since the included angle is greater than 90 °, one end of the drain pipe 40 communicating with the main body 10, that is, the position of the drain opening 114, can be made higher than the other end of the drain pipe 40, and water discharged from the drain opening 114 is difficult to flow backward into the accommodating cavity 110 of the main body 10, so that it can be ensured that water discharged from the drain opening 114 cannot flow backward into the main body 10. Meanwhile, the included angle between the water discharging pipe 40 and the water inlet 112 is larger than 90 degrees, so that water can be discharged from the water discharging pipe 40 quickly, and the water discharging efficiency is improved.

On the basis of the above embodiment, in an embodiment, the inner diameter of the main body 10 is larger than the inner diameter of the drain pipe 40, and the ratio of the inner diameter of the main body 10 to the inner diameter of the drain pipe 40 is 2.5:2-3.5: 2. Since the drain port 114 is formed at the side wall of the main body 10, water discharged into the main body 10 from the water inlet 112 can be accumulated in the main body 10, and thus, the amount of water discharged from the drain port 114 is smaller than the amount of water introduced from the water inlet 112, and thus the inner diameter of the drain pipe 40 can be smaller than that of the main body 10, reducing the volume of the drain pipe and saving piping materials.

Optionally, the ratio of the inner diameter of the main body 10 to the inner diameter of the drain pipe 40 is 3: 2.

On the basis of the above embodiments, in one embodiment, since the internal space of the main body 10 is narrow, in order to reduce the workload of installing the partition board 20 into the main body 10 and reduce the installation error, the main body 10, the partition board 20 and the drain pipe 40 are integrally formed, so that the partition board 20 is not manually installed in the main body 10, the installation manner of the partition board 20 is simplified, the side edges except the bottom end of the partition board 20 are effectively ensured to be completely attached to the side walls of the main body 10, and the possibility of a gap is avoided. For example, the body 10, the partition plate 20, and the drain pipe 40 may be integrally formed by press molding, injection molding, or forging.

Because water produces certain impact force to baffle 20 when water flows down to the baffle 20 surface from water inlet 112, further, baffle 20 still is favorable to improving the stability of baffle 20 with main part 10 integrated into one piece, can not take place to drop the circumstances such as because of the impact that water produced to it to make whole gas barrier structure have longer life.

Optionally, the partition 20 is detachably disposed in the main body 10, a mounting groove (not shown) is disposed on a sidewall of the main body 10, a limiting member (not shown) is disposed in the mounting groove, and the partition 20 is stably disposed in the main body 10 through the mounting groove and the limiting member. When the gas-insulated structure has a blocking phenomenon, the partition board 20 can be detached, so that the accommodating cavity 110 of the main body 10 is convenient to clean and dredge, and the gas-insulated structure is convenient to maintain in the later period of a consumer.

Optionally, the drain pipe 40 is detachably disposed at the drain opening 114 to communicate with the main body 10, further facilitating the disassembly for cleaning or dredging the drain pipe 40 or the main body 10. Because the drain pipe 40 and the partition plate 20 are detachably connected with the main body 10, when one of the components is damaged, the service life of the air-isolating structure can be prolonged by detaching and replacing the local component, thereby saving the cost.

Specifically, in the present embodiment, the main body 10 has a circular tubular structure, the drain pipe 40 also has a circular tubular structure, and the inner wall and the outer wall of the main body 10 and the drain pipe 40 are both smooth surfaces. Therefore, the appearance of the air-isolating structure is simplified, the aesthetic feeling is improved, and meanwhile, the inner wall of the main body 10 is not easy to accumulate dirt, so that a consumer can clean the air-isolating device relatively easily.

In other embodiments, the longitudinal sections of the main body 10 and the drain pipe 40 are not limited to a specific shape, and may be rectangular or S-shaped, as long as the partition 20 can be conveniently placed. Alternatively, the shapes of the main body 10 and the drain pipe 40 may be adaptively changed according to installation conditions and installation environments, so that the air-tight structure has a wide adaptation field.

In this embodiment, the air isolation structure can be used between the washbasin and the waste water pipe in the toilet, but the air isolation structure can also be used between the kitchen washbasin and the waste water pipe, between the bathtub and the waste water pipe, or between other kitchen and toilet appliances and the drainage pipe, and is not limited in this respect. For example, when the air-tight structure is used between a washbasin and a waste water pipe, the inlet 112 is connected to the washbasin through a water inlet pipe, waste water generated by washing is discharged into the main body 10 through the water inlet pipe and the inlet 112, and the waste water is accumulated in the main body 10 to be discharged through the outlet 114 because the bottom end of the main body 10 is closed and the outlet 114 is located on the side wall of the main body 10. Since the partition plate 20 is provided in the main body 10 to divide the water inlet 112 and the water outlet 114, and since the remaining sides of the partition plate 20 are completely attached to the side walls of the main body 10 except for the bottom end of the partition plate 20 which is not in contact with the side walls and the bottom wall of the main body 10, the gap between the partition plate 20 and the main body 10 forms a passage 116. The generated wastewater is discharged from the water inlet 112, flows downward along the upper surface of the partition plate 20 in the space formed by the partition plate 20 and the water inlet 112, enters the space formed by the partition plate 20 and the water discharge port 114 through the passage 116, and is discharged from the water discharge port 114 into the wastewater pipe through the water discharge pipe 40 when the accumulated water level of the wastewater in the main body 10 exceeds the level of the water discharge port 114. Since the partition 20 is obliquely disposed in the main body 10 and disposed in the water accumulation in the main body 10, the partition 20 can effectively prevent bacteria, pests or odors in the drain pipe 40 from flowing backward to the water inlet or the room, and can also support the main body 10 to prevent the water accumulation height, i.e., the water seal height, in the main body 10 from being affected after deformation due to changes in pipeline pressure.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A gas barrier structure, comprising:

the water inlet is communicated with the accommodating cavity, the bottom end of the main body is closed, and a water outlet is formed in the side wall of the main body and communicated with the accommodating cavity; and

the baffle, the baffle slant descend be equipped with hold the intracavity, arrange in the water inlet with between the outlet, make the water inlet is located the top of baffle, the outlet is located the below of baffle, just the bottom of baffle with leave the passageway between the lateral wall of main part and the diapire, just the passageway is less than the outlet.

2. The gas barrier structure as claimed in claim 1, wherein the side edges of the partition are in contact with the side walls of the main body.

3. The gas barrier structure as claimed in claim 2, wherein the angle between the baffle plate and the axis of the main body is 20 ° to 30 °.

4. The gas barrier structure as claimed in claim 1, wherein the height of the drain port from the bottom end of the main body is 100mm to 110 mm.

5. The gas barrier structure as claimed in claim 4, wherein the height of the drain port from the bottom end of the main body is 102 mm.

6. A gas-barrier construction according to any one of claims 1 to 5, wherein the water inlet is provided with a screw thread for connection to a water inlet pipe.

7. The gas barrier structure of claim 6, further comprising a sealing ring disposed in the water inlet, wherein the sealing ring is disposed below the threads.

8. The gas barrier structure according to any one of claims 1 to 5, further comprising a drain pipe connected to the drain port such that the drain pipe communicates with the main body, and the drain pipe forms an angle of not less than 90 ° with the water inlet port.

9. The gas barrier structure of claim 8, wherein the inner diameter of the main body is greater than the inner diameter of the drain pipe, and the ratio of the inner diameter of the main body to the inner diameter of the drain pipe is 2.5:2 to 3.5: 2.

10. The gas barrier structure as claimed in claim 8, wherein the main body, the partition plate and the drain pipe are of an integrally formed structure.

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