CN213062249U - Bathroom is not fallen board and is had layer drainage system - Google Patents

Abstract

A bathroom non-falling plate same-layer drainage system comprises a drainage vertical pipe, a sewage horizontal branch pipe, a wastewater horizontal branch pipe, an integrated water seal, a floor drain, a basin pipeline and a ground floor slab; the vertical drainage pipe penetrates through a floor slab; the water seal channel of the integrated water seal is arranged in the ground floor slab, and the outer wall of the transversely closed bottom does not penetrate through the ground floor slab; the integrated water seal is provided with at least two openings which are communicated and converged to connect with a water seal channel above a ground floor slab, wherein one opening is a waste water transverse branch pipe interface, and the other opening is an access hole; the sewage transverse branch pipe is positioned above the access hole, the interface of the sewage transverse branch pipe is connected with a floor drain and a basin pipeline, and the floor drain and the basin pipeline are not provided with a trap or a water seal device. The utility model discloses can solve traditional building with layer drainage need fall the floor and each drainage point below sets up separately that trap is dry easily and leads to returning smelly problem, realizes need not to fall the board with layer drainage, the bathroom can not have the peculiar smell, the effect that the pipeline was easily overhauld.

Description

Bathroom is not fallen board and is had layer drainage system

Technical Field

The utility model relates to a building bathroom is with layer drainage system, in particular to not falling board is with layer drainage system for building bathroom.

Background

The same-floor drainage of the traditional building toilet needs building structures to drop floors due to the arrangement of drainage pipelines, the height of the drop floors is large (about 300 mm), the drainage pipelines are laid in the area of the drop floors, and water seals of drainage appliances such as floor drains and washbasins connected to the toilet are arranged independently, so that the water seals of the appliances which are not frequently used are easy to dry, and peculiar smell is easily generated in the toilet.

Disclosure of Invention

The utility model aims to overcome prior art defect, provide a building uses in with bathroom of layer drainage, need not building structure and falls the floor or reduce the height that falls the floor, drainage pipe lays on this layer, saves the horizontal spinal branch pipe of drainage and uses, makes the bathroom be difficult for producing peculiar smell, drainage pipe overhaul maintain a simple bathroom not fall board with layer drainage system.

A bathroom does not fall board with layer drainage system constitute by drainage riser 1, sewage horizontal branch pipe 2 and waste water horizontal branch pipe 3, integrated water seal 4, floor drain 5 and ground floor 6. The vertical drainage pipe 1 penetrates through a ground floor 6 to be connected with an upper vertical drainage pipe 1 and a lower vertical drainage pipe 1; the integrated water seal 4 consists of a water seal channel 7, a sewage transverse branch pipe interface 8, a wastewater transverse branch pipe interface 9, an upper vertical pipe interface 10, a lower vertical pipe interface 11, a sewage transverse branch pipe socket 25 and a sewage transverse branch pipe socket 12; the water seal channel 7 of the integrated water seal 4 is arranged on the horizontal closed bottom outer wall a in the ground floor slab 6 and does not pass through the ground floor slab 6, the integrated water seal 4 at least has two openings above the ground floor slab 6 for communicating and converging and connecting the water seal channel 7, one of the two openings is a wastewater horizontal branch pipe interface 9, the other is an access opening 41, the wastewater horizontal branch pipe interface 9 is connected with a floor drain and a washbowl drainage pipeline, the opening of the access opening 41 is upwards staggered with the wastewater horizontal branch pipe interface 9, when the integrated water seal is blocked, the access opening can be opened from the layer for the purpose of being stifled and overhauled, and the overhaul from downstairs is; the sewage horizontal branch pipe 2 is positioned above the access hole 41, is more than 30mm and less than 350mm away from the ground floor 6 and is communicated with the vertical drainage pipe 1, the communication hole and the communication hole of the sewage horizontal branch pipe 3 in the vertical drainage pipe 1 are staggered up and down, and the two communication holes are arrangedThe fall of the communicating port is more than 50mm and less than 400 mm; when the sewage cross branch pipe discharges sewage, the sewage cannot enter the wastewater cross branch pipe, and the fall cannot be too large, so that under the condition that the drainage is not influenced and interfered mutually, the appliance connected with the sewage cross branch pipe and the appliance connected with the wastewater cross branch pipe have certain drainage gradient, and the drainage is smoother; when the wastewater transverse branch pipe joint 9 is connected with a drainage pipe of an appliance for drainage, a pipeline connected with the wastewater transverse branch pipe joint 9 cannot produce accumulated water, the interior of the pipeline is kept dry, and the inner wall of the pipeline cannot easily generate a biological membrane and cannot easily generate peculiar smell; a rubber sealing ring 13 is arranged in the bell mouth 25 of the horizontal sewage branch pipe and is positioned above the communicating port of the horizontal wastewater branch pipe 3 in the vertical drainage pipe 1; the upper vertical pipe interface 10 is positioned at the vertical upper end of the sewage transverse branch pipe interface 8 and is connected with the vertical drainage pipe 1, and the sewage transverse branch pipe socket 12 is positioned at the vertical lower end of the sewage transverse branch pipe interface 8 and is sleeved in the rubber sealing ring 13 in the sewage transverse branch pipe socket 25; the sewage transverse branch pipe faucet 12 of the sewage transverse branch pipe 2 is sleeved in the rubber sealing ring 13 in the sewage transverse branch pipe faucet 25 to form flexible sealing connection, the sewage transverse branch pipe 2 and the sewage transverse branch pipe faucet 8 can be rotated, and when the sewage transverse branch pipe 2 covers the access opening 41, the access opening 41 can be avoided, so that the access opening 41 has an access function; the sewage horizontal branch pipe connector 8 is connected with the sewage horizontal branch pipe 2, the waste water horizontal branch pipe connector 9 is connected with the floor drain 5 and the washbasin drainage pipeline 56, and the lower vertical pipe connector 11 is connected with the drainage vertical pipe 1; the gathering port 15 of the wastewater horizontal branch pipe interface 9 is vertically connected and communicated with the water seal channel 7, the outer wall of the water seal channel 7 is closed, the inner wall is communicated, the water seal channel is composed of more than 2 vertical channels 17 and more than 2 horizontal channels 18, the drainage overflow area of each vertical channel 17 is more than 1000mm²At least 2 of the transverse channels 18 have an open area of more than 1000mm²The width of the transverse opening is larger than the length of the vertical opening, the two adjacent transverse channels 18 have a fall, at least 1 pair of adjacent transverse channels 18 have a fall larger than 20mm and smaller than 100mm, and the arrangement structure of the water seal channel can realize that the fall of the two transverse channels (18) can meet the water seal height condition (the fall of the two transverse channels (18)) within the limited range of the thickness of the floor slab on the groundThe water seal is formed by combining the inner wall structure of the channel), so that the water flowing channel and the overflowing area are maximized, the smoothness of drainage is guaranteed, meanwhile, the integrated water seal is used for being intensively connected with a drainage pipe of a drainage device, the integrated water seal can be replenished as long as one device is used, the drainage device does not need to be additionally provided with a water seal device, the using number of drainage pipes is reduced, the water seal has high safety, a room is not easy to generate peculiar smell, moreover, the transverse channel (18) forms a drop with a high middle part and low two sides, 1 pair of drops can form the water seal, and the other 1 pair of drops can prevent sewage in the drainage vertical pipe from flowing into the; the height of a ground floor 6 from a vertical drainage inlet d of a floor drain 5 is less than 90mm, the height from the horizontal top of a wastewater horizontal branch pipe 3 connected with the floor drain 5 is less than 250mm, the structure is combined with a structure of an integrated water seal, the height distance from the ground floor to a decoration finished surface can be greatly reduced, when a horizontal pipeline at the top of the wastewater horizontal branch pipe connected with the floor drain is higher than the vertical drainage inlet of the floor drain, a raised part can ventilate, and when the floor drain performs vertical drainage or performs vertical and horizontal drainage, the raised part can balance airflow in the wastewater horizontal branch pipe, so that the drainage fullness of the wastewater horizontal branch pipe is increased, and the drainage flow of the floor drain and other drainage appliances sharing the wastewater horizontal branch pipe with the floor drain is improved; the length of a vertical channel 17 of the water seal channel 7, which is vertically connected with a gathering port 15 of the wastewater transverse branch pipe connector 9, from the vertical drainage pipe 1 is more than 40mm and less than 400mm, so that the structure can ensure that a flow channel has enough width, a space can be reserved between the vertical drainage pipe and an access hole, and the drainage of the vertical drainage pipe can be further prevented from flowing back to a water seal by combining the fall of the transverse channel 18; the horizontal waste water branch pipe joint 9 is flexibly and movably connected or sleeved with the water seal channel 7, the collecting joint 15 at the lower end of the horizontal waste water branch pipe joint 9 is inserted into the vertical channel 17 of the water seal channel 7, the upper end of the vertical channel 17 of the water seal channel 7 is communicated with a ponding discharge joint 21, the drop of the ponding discharge joint 21 from the lowest j of the horizontal channel 18 at the highest position of the water seal channel 7 is more than 20mm and less than 60mm, the ponding discharge joint and the horizontal waste water branch pipe joint share the water seal vertical channel, and the structure that the water seal channel structure and the horizontal waste water branch pipe joint are connected with other appliances is combined, namely the ponding discharge joint and the other appliances connected with the horizontal waste water branch pipe joint share one water seal, onlyWhen the integrated water seal is used, the water can be supplemented by the common water seal, the water seal is not easy to dry, the water seal can be maintained frequently in daily life such as brushing teeth and washing faces without professional personnel, peculiar smell is not easy to generate in a toilet, the drainage of the waste water transverse branch pipe can not overflow from the accumulated water drainage port due to the drop of the lowest j of the transverse channel 18 of the accumulated water drainage port 21, the drop is limited in a certain range, the total height of the integrated water seal can be reduced under the condition of ensuring the height of the water seal, the width of a flow channel and the overflowing area, the structure with the separation of the waste water transverse branch pipe connector 9 and the water seal channel 7 can adjust the installation height of the waste water transverse branch pipe connector 9 and other floor drain appliances according to different thicknesses of the ground decoration layer on an installation site, so as to adapt to meet the requirements of different thicknesses of the ground decoration layers, and, meanwhile, the specific arrangement of the position of the accumulated water discharge port 21 at the upper end of the vertical channel 17 ensures that the function of normally using the accumulated water discharge port 21 to discharge the accumulated water cannot be influenced due to the change of the adjustment height when the installation height of the floor drain connected with the waste water transverse branch pipe joint 9 and other appliances is adjusted.

The bathroom does not fall the board and is connected with 2 floor drains 5 on the same floor drainage system waste water horizontal branch pipe interface 9, a floor drain is as the bathroom dry district floor drain, a floor drain is as the bathroom wet district floor drain, other structures in the combination system make all floor drains all can not produce the peculiar smell because of the dry messenger bathroom of water seal.

Drawings

Fig. 1 is a layout plan view of the present invention.

Fig. 2 is a sectional view of the present invention 1-1.

Fig. 3 is a sectional view of the present invention 2-2.

FIG. 4 is a view of the drainage pipeline of the basin of the present invention.

Detailed Description

The present invention will be further described, but not limited to, with reference to the accompanying drawings.

Example 1

As shown in figures 1, 2, 3 and 4, the utility model relates to a bathroom is not fallen board same floor drainage system, by drainage riser 1, dirtyThe horizontal branch pipe 2 of water and the horizontal branch pipe 3 of waste water, the integrated water seal 4, the floor drain 5 and the floor slab 6. The drainage vertical pipe 1 penetrates through a ground floor 6; the integrated water seal 4 consists of a water seal channel 7, a sewage transverse branch pipe interface 8, a wastewater transverse branch pipe interface 9, an upper vertical pipe interface 10, a lower vertical pipe interface 11, a sewage transverse branch pipe socket 25 and a sewage transverse branch pipe socket 12; the water seal channel 7 of the integrated water seal 4 is arranged on the transversely closed bottom outer wall a in the ground floor slab 6 and does not penetrate through the ground floor slab 6, at least two openings of the integrated water seal 4 above the ground floor slab 6 are communicated and converged with the water seal channel 7, one of the openings is a wastewater transverse branch pipe interface 9, and the other opening is an access port 41; the sewage transverse branch pipe 2 is positioned above the access opening 41, is 250mm away from the floor 6 and is communicated with the vertical drainage pipe 1, the communication opening and the communication opening of the sewage transverse branch pipe 3 in the vertical drainage pipe 1 are staggered up and down, and the fall of the two communication openings is 100 mm; the wastewater transverse branch pipe interface 9 is higher than the bottom j of the highest transverse channel 18 of the water seal channel 7, and the wastewater transverse branch pipe interface 8 is higher than the wastewater transverse branch pipe interface 9; a rubber sealing ring 13 is arranged in a sewage transverse branch pipe bell mouth 25 and is positioned above a communication port of a sewage transverse branch pipe 3 in a drainage vertical pipe 1, an upper vertical pipe joint 10 is positioned at the vertical upper end of a sewage transverse branch pipe joint 8 and is connected with the drainage vertical pipe 1, a sewage transverse branch pipe joint 12 is positioned at the vertical lower end of the sewage transverse branch pipe joint 8 and is sleeved in the rubber sealing ring 13 in the sewage transverse branch pipe bell mouth 25, the sewage transverse branch pipe joint 8 is connected with a sewage transverse branch pipe 2, a sewage transverse branch pipe joint 9 is connected with a floor drain 5 and a washbowl drainage pipe 56, and a lower vertical pipe joint 11 is connected with a lower drainage vertical pipe 1; the gathering port 15 of the wastewater horizontal branch pipe interface 9 is vertically connected and communicated with the water seal channel 7, the outer wall of the water seal channel 7 is closed, the inner wall is communicated and is composed of 2 vertical channels 17 and 2 horizontal channels 18, the drainage overflow area of each vertical channel 17 is 1400mm²(ii) a Having 2 transverse channels 18 with an open flow area of 3000mm²The horizontal opening is 100mm, the vertical opening is 30mm, the two adjacent horizontal channels 8 have a fall, the fall of 1 pair of adjacent horizontal channels 18 is 50mm, the height of the ground floor 6 from the vertical drainage inlet d of the floor drain 5 is 35mm, the height from the horizontal top of the horizontal wastewater branch pipe 3 connected with the floor drain 5 is 80mm, the vertical channel 17 of the water seal channel 7 vertically connected with the collection port 15 of the horizontal wastewater branch pipe connector 9 is 80mm from the drainage portThe length of the water stand pipe 1 is 100 mm. The horizontal waste water branch pipe interface is flexibly and movably connected or sleeved with the water 9 sealing channel 7, the collecting interface 15 at the lower end of the horizontal waste water branch pipe interface 9 is inserted into the vertical channel 17 of the water sealing channel 7, the upper end of the vertical channel 17 of the water sealing channel 7 is communicated with a ponding discharge port 21, and the drop of the ponding discharge port 21 from the lowest j of the horizontal channel 18 at the highest position of the water sealing channel 7 is 40 mm.

Example 2

As shown in figures 1, 2, 3 and 4, the same-floor drainage system for the toilet without lowering the floor comprises a drainage vertical pipe 1, a sewage horizontal branch pipe 2, a wastewater horizontal branch pipe 3, an integrated water seal 4, a floor drain 5 and a floor slab 6. The drainage vertical pipe 1 penetrates through a ground floor 6; the integrated water seal 4 consists of a water seal channel 7, a sewage transverse branch pipe interface 8, a wastewater transverse branch pipe interface 9, an upper vertical pipe interface 10, a lower vertical pipe interface 11, a sewage transverse branch pipe socket 25 and a sewage transverse branch pipe socket 12; the water seal channel 7 of the integrated water seal 4 is arranged on the transversely closed bottom outer wall a in the ground floor slab 6 and does not penetrate through the ground floor slab 6, at least two openings of the integrated water seal 4 above the ground floor slab 6 are communicated and converged with the water seal channel 7, one of the openings is a wastewater transverse branch pipe interface 9, and the other opening is an access port 41; the sewage transverse branch pipe 2 is positioned above the access opening 41, is 230mm away from the ground floor 6 and is communicated with the vertical drainage pipe 1, the communication opening and the communication opening of the sewage transverse branch pipe 3 in the vertical drainage pipe 1 are staggered up and down, and the fall of the two communication openings is 200 mm; the wastewater transverse branch pipe interface 9 is higher than the bottom j of the highest transverse channel 18 of the water seal channel 7, and the wastewater transverse branch pipe interface 8 is higher than the wastewater transverse branch pipe interface 9; a rubber sealing ring 13 is arranged in a sewage transverse branch pipe bell mouth 25 and is positioned above a communication port of a sewage transverse branch pipe 3 in a drainage vertical pipe 1, an upper vertical pipe joint 10 is positioned at the vertical upper end of a sewage transverse branch pipe joint 8 and is connected with the drainage vertical pipe 1, a sewage transverse branch pipe joint 12 is positioned at the vertical lower end of the sewage transverse branch pipe joint 8 and is sleeved in the rubber sealing ring 13 in the sewage transverse branch pipe bell mouth 25, the sewage transverse branch pipe joint 8 is connected with a sewage transverse branch pipe 2, a sewage transverse branch pipe joint 9 is connected with a floor drain 5 and a washbowl drainage pipe 56, and a lower vertical pipe joint 11 is connected with a lower drainage vertical pipe 1; the gathering port 15 of the wastewater horizontal branch pipe interface 9 is vertically connected and communicated with the water seal channel 7, the outer wall of the water seal channel 7 is closed, and the inner wall is communicatedComposed of 2 vertical channels 17 and 2 transverse channels 18, the drainage flow area of each vertical channel 17 is 1500mm²(ii) a The flow area of 2 transverse channels 18 is 3300mm²The transverse opening of the vertical channel is 110mm, the vertical opening of the vertical channel is 30mm, the two adjacent transverse channels 18 have a fall, the fall of 1 pair of adjacent transverse channels 18 is 51mm, the height of the ground floor 6 from the vertical drainage inlet d of the floor drain 5 is 55mm, the height from the transverse top of the waste water transverse branch pipe 3 connected with the floor drain 5 is 90mm, and the length from the vertical channel 17 of the water seal channel 7 vertically connected with the collection port 15 of the waste water transverse branch pipe connector 9 to the drainage vertical pipe 1 is 120 mm. The horizontal waste water branch pipe interface is flexibly and movably connected or sleeved with the water 9 sealing channel 7, the collecting interface 15 at the lower end of the horizontal waste water branch pipe interface 9 is inserted into the vertical channel 17 of the water sealing channel 7, the upper end of the vertical channel 17 of the water sealing channel 7 is communicated with a ponding discharge port 21, and the drop of the ponding discharge port 21 from the lowest j of the horizontal channel 18 at the highest position of the water sealing channel 7 is 35 mm.

Example 3

As shown in figures 1, 2, 3 and 4, the same-floor drainage system for the toilet without lowering the floor comprises a drainage vertical pipe 1, a sewage horizontal branch pipe 2, a wastewater horizontal branch pipe 3, an integrated water seal 4, a floor drain 5 and a floor slab 6. The drainage vertical pipe 1 penetrates through a ground floor 6; the integrated water seal 4 consists of a water seal channel 7, a sewage transverse branch pipe interface 8, a wastewater transverse branch pipe interface 9, an upper vertical pipe interface 10, a lower vertical pipe interface 11, a sewage transverse branch pipe socket 25 and a sewage transverse branch pipe socket 12; the water seal channel 7 of the integrated water seal 4 is arranged on the transversely closed bottom outer wall a in the ground floor slab 6 and does not penetrate through the ground floor slab 6, at least two openings of the integrated water seal 4 above the ground floor slab 6 are communicated and converged with the water seal channel 7, one of the openings is a wastewater transverse branch pipe interface 9, and the other opening is an access port 41; the sewage transverse branch pipe 2 is positioned above the access opening 41, is 180mm away from the floor 6 and is communicated with the vertical drainage pipe 1, the communication opening and the communication opening of the sewage transverse branch pipe 3 in the vertical drainage pipe 1 are staggered up and down, and the fall of the two communication openings is 160 mm; the wastewater transverse branch pipe interface 9 is higher than the bottom j of the highest transverse channel 18 of the water seal channel 7, and the wastewater transverse branch pipe interface 8 is higher than the wastewater transverse branch pipe interface 9; a rubber sealing ring 13 is arranged in the bell mouth 25 of the sewage horizontal supporting pipe and is positionedThe upper vertical pipe joint 10 is positioned above a communication port of the wastewater transverse branch pipe 3 in the drainage vertical pipe 1 and is connected with the drainage vertical pipe 1 at the vertical upper end of the sewage transverse branch pipe joint 8, the sewage transverse branch pipe socket 12 is positioned at the vertical lower end of the sewage transverse branch pipe joint 8 and is sleeved in a rubber sealing ring 13 in a sewage transverse branch pipe socket 25, the sewage transverse branch pipe joint 8 is connected with the sewage transverse branch pipe 2, the wastewater transverse branch pipe joint 9 is connected with a floor drain 5 and a washbasin drainage pipe 56, and the lower vertical pipe joint 11 is connected with the lower drainage vertical pipe 1; the gathering port 15 of the wastewater horizontal branch pipe interface 9 is vertically connected and communicated with the water seal channel 7, the outer wall of the water seal channel 7 is closed, the inner wall is communicated and is composed of 2 vertical channels 17 and 2 horizontal channels 18, the drainage flow area of each vertical channel 17 is 1500mm²(ii) a The flow area of 2 transverse channels 18 is 2800mm²The transverse opening of the vertical channel is 90mm, the vertical opening of the vertical channel is 35mm, the adjacent two transverse channels 8 have fall, the fall of 1 pair of adjacent transverse channels 18 is 55mm, the height of the ground floor 6 from the vertical drainage inlet d of the floor drain 5 is 65mm, the height from the transverse top of the waste water transverse branch pipe 3 connected with the floor drain 5 is 100mm, and the length from the vertical channel 17 of the water seal channel 7 vertically connected with the collection port 15 of the waste water transverse branch pipe connector 9 to the drainage vertical pipe 1 is 150 mm. The horizontal waste water branch pipe interface is flexibly and movably connected or sleeved with the water 9 sealing channel 7, the collecting interface 15 at the lower end of the horizontal waste water branch pipe interface 9 is inserted into the vertical channel 17 of the water sealing channel 7, the upper end of the vertical channel 17 of the water sealing channel 7 is communicated with a ponding discharge port 21, and the drop of the ponding discharge port 21 from the lowest j of the horizontal channel 18 at the highest position of the water sealing channel 7 is 45 mm.

Example 4

As shown in figure 1, the toilet drainage system without lowering plates at the same floor is characterized in that 2 floor drains 5 are connected to a waste water horizontal branch pipe connector 9.

Claims (2)

1. A bathroom non-falling plate same-layer drainage system is composed of a drainage vertical pipe (1), a sewage horizontal branch pipe (2), a wastewater horizontal branch pipe (3), an integrated water seal (4), a floor drain (5) and a ground floor (6); the method is characterized in that: the vertical drainage pipe (1) penetrates through a ground floor (6); the integrated water seal (4) consists of a water seal channel (7), a sewage horizontal branch pipe joint (8), a wastewater horizontal branch pipe joint (9) and an upper vertical pipe joint(10) A lower vertical pipe interface (11), a sewage horizontal supporting pipe bell mouth (25) and a sewage horizontal supporting pipe socket (12); a water seal channel (7) of the integrated water seal (4) is arranged in the ground floor (6), and the outer wall a at the bottom which is transversely closed does not pass through the ground floor (6); at least two openings of the integrated water seal (4) above a ground floor (6) are communicated and converged to connect a water seal channel (7), wherein one opening is a waste water transverse branch pipe interface (9), and the other opening is an access opening (41); the sewage transverse branch pipe (2) is positioned above the access hole (41), the height from the ground floor (6) is more than 30mm and less than 350mm, the sewage transverse branch pipe is communicated with the drainage vertical pipe (1), the communication holes and the sewage transverse branch pipe (3) are vertically staggered in the communication holes in the drainage vertical pipe (1), and the difference between the two communication holes is more than 50mm and less than 400 mm; the wastewater transverse branch pipe joint (9) is higher than the bottom j of the highest transverse channel (18) of the water seal channel (7), and the sewage transverse branch pipe joint (8) is higher than the wastewater transverse branch pipe joint (9); a rubber sealing ring (13) is arranged in a bell mouth (25) of the sewage transverse branch pipe and is positioned above a communication port of the sewage transverse branch pipe (3) in the vertical drainage pipe (1); the upper vertical pipe connector (10) is positioned at the vertical upper end of the sewage transverse branch pipe connector (8) and is connected with the vertical drainage pipe (1), and the sewage transverse branch pipe socket (12) is positioned at the vertical lower end of the sewage transverse branch pipe connector (8) and is sleeved in the rubber sealing ring (13) in the sewage transverse branch pipe socket (25); the sewage horizontal branch pipe connector (8) is connected with the sewage horizontal branch pipe (2), the wastewater horizontal branch pipe connector (9) is connected with the floor drain (5) and the washbasin drainage pipeline (56), and the lower vertical pipe connector (11) is connected with the lower drainage vertical pipe (1); the gathering port (15) of the wastewater horizontal branch pipe joint (9) is vertically connected and communicated with the water seal channel (7), the outer wall of the water seal channel (7) is closed, the inner wall of the water seal channel is communicated and is composed of more than 2 vertical channels (17) and more than 2 horizontal channels (18), the drainage overflow area of each vertical channel (17) is more than 1000mm²(ii) a At least 2 transverse channels (18) having an open area of more than 1000mm²The width of the transverse opening is larger than the length of the vertical opening, the two adjacent transverse channels (18) have fall, at least 1 pair of adjacent transverse channels (18) have fall larger than 20mm and smaller than 100mm, the height of the ground floor (6) from the vertical drainage inlet d of the floor drain (5) is smaller than 90mm, the height from the transverse top of the wastewater transverse branch pipe (3) connected with the floor drain (5) is smaller than 250mm, and the length from the vertical channel (17) of the water seal channel (7) vertically connected with the collection port (15) of the wastewater transverse branch pipe connector (9) to the vertical drainage pipe (1) is largeLess than 400mm at 40 mm; the horizontal waste water branch pipe joint (9) is flexibly and movably connected or sleeved with the water seal channel (7), a collecting joint (15) at the lower end of the horizontal waste water branch pipe joint (9) is inserted into a vertical channel (17) of the water seal channel (7), the upper end of the vertical channel (17) of the water seal channel (7) is communicated with a ponding discharge port (21), and the drop of the ponding discharge port (21) from the lowest j of the horizontal channel (18) at the highest position of the water seal channel (7) is more than 20mm and less than 60 mm.

2. The bathroom non-descending board same-layer drainage system according to claim 1, characterized in that 2 floor drains (5) are connected to the waste water cross branch pipe joint (9).

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