CN112012288A - Spiral-flow type is with layer drainage system - Google Patents

Abstract

The invention discloses a spiral-flow type same-floor drainage system, which relates to the technical field of building drainage systems and comprises the following components: the side wall of the drainage collector is provided with a first drainage port and a second drainage port; the vertical drainage pipe is respectively connected to the upper end and the lower end of the drainage collector; the water inlet end of the toilet bowl water outlet pipe is communicated with the toilet bowl; the water inlet end of the water seal protection device of the toilet bowl water outlet is communicated with the water outlet end of the toilet bowl water outlet pipe, and the water outlet end is communicated with the first water outlet through an arc-shaped pipe; the water inlet end of the floor drain pipe is connected with the same-layer floor drain; and the water inlet end of the trap is communicated with the water outlet end of the floor drain pipe, and the water outlet end of the trap is communicated with the second water outlet. The invention has the advantages that the rotational flow drainage is adopted, the air pressure interference in the vertical pipe is small, the noise is low, the drainage flow is large, the water seal protection measure is adopted, the water seal safety is ensured, the flat pipe and the flat pipe component are adopted for floor drain drainage, the conflict between the thickness of the cushion layer and the size of the pipe diameter can be effectively solved, and the popularization and the application are convenient.

Description

Spiral-flow type is with layer drainage system

Technical Field

The invention relates to the technical field of building drainage systems, in particular to a spiral-flow type same-floor drainage system.

Background

For a long time in China, residential buildings have adopted the traditional interlayer drainage mode. With the rapid development of national economy, people do not pay attention to the function and cost factors, and the requirements on the sanitation, design, convenience, comfort and personalization of a house are higher and higher, so that new requirements are put forward on the construction of the traditional house. In recent years, city planning departments and building design departments pay more attention to a 'person-oriented' design concept, create and humanized design space, pay more attention to people and respect people, and pay more attention to emotion and cultural requirements of people on buildings. Under the background, a plurality of problems of interlayer drainage are gradually highlighted, the requirements of people on building drainage cannot be met, and drainage on the same layer is carried out.

The regulations of China on residential buildings encourage the same-floor drainage mode: house design Specification (GB50096-2011) 8.2.8 article specifies: the horizontal drainage pipe for the sewage and the waste water of the house is suitable to be arranged in the layer sleeve; 4.3.8 regulations in the design Specifications for water supply and drainage of buildings (GB 50015-20032009 edition): the plumbing fixture drainage lateral should be provided with the same layer of drainage in the following cases, article 4.3.8A specifies: the same-layer drainage mode of the residential toilet is determined by technical and economic comparison according to factors such as toilet space, sanitary ware arrangement, outdoor environment temperature and the like, and 4.3.8B regulations are as follows: the same-layer drainage design should meet the following requirements; technical points of construction of healthy houses (2004 edition) 2.7.4 regulations: the branch drain pipe should be bounded by the household. Some of the above-mentioned terms are "preferred" and some are "applied". But all express the same concept, the residential toilet drainage design adopts the same-layer drainage.

The same-floor drainage means that drainage pipes (including a horizontal drainage pipe and a branch drainage pipe) of sanitary appliances (including kitchens, balconies and the like) in a toilet do not penetrate through the floor of the floor to enter the lower-floor space, but are laid on the same floor as the sanitary appliances, and a building drainage system of a vertical drainage pipe is connected into the floor. Compared with the traditional interlayer drainage treatment mode, the most fundamental idea change of the same-layer drainage scheme is that the constraint between adjacent floors is thoroughly eliminated through the reasonable layout of the pipelines in the same layer, a series of troubles and hidden dangers caused by the fact that the drainage transverse pipe occupies the space of the lower layer are avoided, and a user can individually arrange the position of the toilet sanitary ware according to own hobbies and will.

The current same-floor drainage installation mode aims at achieving an installation mode of an effective drainage and pollution discharge standard by reasonably laying pipelines according to different toilet layouts on the basis of same-floor drainage. The installation mode of the wall structure is divided into four different modes: lowering the plate: namely, a toilet floor (or a local floor) sinking mode is adopted; secondly, a wall arrangement mode (taking a pipeline hidden installation system as a main characteristic) is adopted; thirdly, cushion layer type; fourthly, the plate does not fall.

In engineering practice, different same-layer drainage modes have the characteristics and the application range, and the wall drainage type same-layer drainage technology is mature, but has more defects; the plate lowering type same-layer drainage is a Chinese type same-layer drainage technology, water accumulation is easy to generate, and maintenance workers are difficult; cushion type, only suitable for old interest transformation. The drainage characteristics of the same layer of the plate without descending are as follows: (1) the drainage of the toilet/kitchen/balcony is realized without lowering the floor drain. (2) The drainage safety is improved: the water seal is shared by drainage facilities such as a washbasin, a floor drain, a shower and the like, so that the long-term effectiveness of the water seal effect of each drainage device of the system is ensured, the non-return device for slowing down the evaporation of the water seal is adopted, the drainage safety is greatly improved, and meanwhile, the interlayer propagation of viruses and bacteria is also closed. (3) Improve space availability factor: the traditional lowering plate has large height of the same-layer drainage lowering plate, small net height between layers, and is more obvious particularly after an electric water heater is installed, people are restrained after entering a toilet, and the use efficiency of the drainage space of the same layer of the lowering plate is high. (4) Save building material, reduce engineering cost: compared with waterproof materials, backfill materials and the like consumed by drainage of the traditional descending plate on the same layer, the drainage system without descending plate greatly reduces the use amount of the materials, reduces the construction difficulty and the construction cost, and has the precondition of large-scale popularization and application in the engineering. The drainage of the same layer without lowering the plate is a leading-edge drainage system at present, but the drainage system also has the limitations, the product is imperfect, and the popularization and the application of the drainage system are hindered due to imperfect standards.

The drainage system on the same floor without lowering the floor in the existing market has the following problems: firstly, the drainage system adopts a split design, and the sealing glue or the rubber ring at the lap joint can have an aging phenomenon after being used for a long time, so that the water leakage risk is caused; secondly, the concentrated water seal is provided with a filter screen or is not provided with the concentrated water seal, and virus and bacteria separation layers in the drainage pipeline have propagation risks and safety risks; thirdly, the sewage in the trap is directly discharged into the vertical pipe, so that the air disturbance in the vertical pipe is large, the air pressure change of the vertical pipe is large, the water seal of the trap is easily damaged, the air tightness is reduced, and the 'smell return' of a toilet and the cross-layer transmission of bacteria and viruses are easily caused; and fourthly, the floor drain connecting pipeline and the pipe fitting adopt round pipes and fittings, so that the size of the pipeline conflicts with the thickness of the cushion layer on the floor layer.

Disclosure of Invention

The present invention is directed to at least one of the technical problems of the prior art, and provides a spiral-flow type same-floor drainage system.

The technical solution of the invention is as follows:

a cyclonic peer drainage system comprising:

the side wall of the drainage collector is provided with a first drainage port and a second drainage port;

the vertical drainage pipe is respectively connected to the upper end and the lower end of the drainage collector;

the water inlet end of the toilet bowl water outlet pipe is communicated with the toilet bowl;

the water inlet end of the water seal protection device of the toilet bowl water outlet is communicated with the water outlet end of the toilet bowl water outlet pipe, and the water outlet end is communicated with the first water outlet through an arc-shaped pipe;

the water inlet end of the floor drain pipe is connected with the same-layer floor drain;

and the water inlet end of the trap is communicated with the water outlet end of the floor drain pipe, and the water outlet end of the trap is communicated with the second water outlet.

Preferably, the trap is a curved pipe, the trap is arranged on the side wall of the drainage collector in a surrounding manner, and the water inlet end of the trap is higher than the water outlet end of the trap.

Preferably, the drainage collector and the trap are of an integral structure.

Preferably, one end of the trap close to the floor drain pipe is also provided with a water inlet for replenishing water into the trap.

Preferably, the water inlet is connected with a water inlet pipe, and the water inlet pipe is connected with a controller for controlling the on-off of the water inlet pipe.

Preferably, the water seal protection device for the toilet bowl water outlet comprises a shell with openings at two ends and a movable plate for separating the openings at two ends of the shell, wherein the movable plate is movably arranged in the shell, and the movable plate can rotate along the inner wall of the shell under the action of water pressure to communicate two ends of the shell.

Preferably, the movable plate is obliquely arranged in the housing relative to the horizontal direction, the upper end of the movable plate is hinged on the inner wall of the housing, and the lower end of the movable plate can rotate along the hinged end towards the direction close to the drainage collector.

Preferably, a baffle is arranged on the bottom wall of the shell and is abutted against the lower end of the movable plate to limit the movable plate to rotate towards the direction close to the toilet bowl drain pipe.

Preferably, the drainage collector and the inner wall of the drainage vertical pipe are both provided with laterally convex swirl vanes, and the swirl vanes are obliquely arranged on the inner walls of the drainage collector and the drainage vertical pipe.

Preferably, the floor drain pipe is an elliptical pipe, and a short axis of the elliptical pipe is arranged in the vertical direction.

The invention has at least one of the following beneficial effects:

1. the invention realizes that the floor drain part adopts the centralized water seal by arranging the curved trap, prevents odor, bacteria, virus and the like in the vertical drainage pipe from entering the room through the floor drain on the same floor to cause pollution, realizes rotational flow drainage through the trap, has small interference on the air pressure fluctuation in the vertical drainage pipe, and has small noise and large drainage flow.

2. According to the invention, the water inlet is arranged on the trap, and the trap is replenished and dredged through the water inlet, so that the water seal safety and the smooth drainage of the trap are improved, the blockage is avoided, and the timed water replenishing and the timed closing of the trap are controlled through the controller, so that the trap is more convenient to control.

3. The water seal protection device for the water outlet of the toilet bowl can prevent odor, bacteria, viruses and the like in the vertical drainage pipe from entering the toilet bowl, prevent mice, insects and the like from climbing into the toilet bowl from the vertical drainage pipe, and ensure that the drainage of the toilet bowl is tangent through the arc-shaped pipe, so that the eddy phenomenon can be reduced, the drainage is smoother, and the pressure fluctuation in the vertical drainage pipe can be reduced.

4. The trap and the drainage collector are integrated, so that the stability of the structure is improved, and compared with a split structure, the water leakage risk is reduced.

5. The floor drain drainage system adopts the flat pipe and the pipe fitting thereof, and solves the contradiction between the pipe diameter size and the cushion layer size.

Drawings

FIG. 1 is a first schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a second schematic structural diagram of the preferred embodiment of the present invention;

FIG. 3 is a schematic view of a portion of the structure of the preferred embodiment of the present invention;

FIG. 4 is a schematic view of the internal structure of a drainage riser and drainage manifold in a preferred embodiment of the invention;

FIG. 5 is a schematic top view of a drainage manifold and trap in accordance with a preferred embodiment of the present invention;

FIG. 6 is a schematic view of the structure of the water seal protection device for the toilet seat outlet in the preferred embodiment of the present invention;

FIG. 7 is a schematic view showing the internal structure of a water seal protection device for a toilet seat outlet according to a preferred embodiment of the present invention;

FIG. 8 is a schematic view of a preferred embodiment of the present invention in use;

reference numerals: 1. a vertical drainage pipe; 2. a drainage collector; 3. a water seal protection device at the water outlet of the toilet bowl; 4. a square-round adapter; 5. a toilet bowl drain pipe; 6. a water inlet pipe; 7. a controller; 8. a floor drain pipe; 9. connecting a pipe hoop; 10. a drainage tee joint; 11. an elbow pipe; 12. a same-layer drainage floor drain; 13. a floor layer; 14. a cushion layer; 15. a finishing layer; 21. an arc tube; 22. a water trap; 23. a water inlet; 31. a movable plate; 32. a housing; 33. and a baffle plate.

Detailed Description

The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements can be directly connected with each other or indirectly connected with each other through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-7, the embodiment provides a spiral-flow type same-floor drainage system, which is suitable for installation of a non-falling plate in a toilet and used for drainage of a floor drain and a toilet bowl, and comprises a drainage vertical pipe 1, a drainage collector 2, a toilet bowl drainage pipe 5, a toilet bowl drainage outlet water seal protection device 3, a floor drain drainage pipe 8 and a trap 22.

The number of the vertical drainage pipes 1 is two, the two vertical drainage pipes are respectively connected to the upper end and the lower end of the drainage collector 2, the inner wall of the vertical drainage pipe 1 is provided with a swirl vane 16 protruding laterally, and the swirl vane 16 is obliquely arranged, so that sewage can collide with the swirl vane 16 to form swirl when passing through the interior of the vertical drainage pipe 1. In this embodiment, 3 of the number of the swirl blades 16 are provided, and the 3 swirl blades 16 are uniformly spaced, and in practical application, the number of the swirl blades 16 may be 1, 2 or more, and may be determined according to practical situations.

The upper end and the lower end of the drainage collector 2 are opened so as to be communicated with the drainage vertical pipe 1, and the side wall of the drainage collector 2 is provided with a first drainage port and a second drainage port; the inner wall of the drainage collector 2 is also provided with a laterally convex swirl vane 16, and the swirl vane 16 is arranged obliquely so that the sewage collides with the swirl vane 16 to form a swirl when passing through the inside of the drainage collector 2. In this embodiment, 3 of the number of the swirl blades 16 are provided, and the 3 swirl blades 16 are uniformly spaced, and in practical application, the number of the swirl blades 16 may be 1, 2 or more, and may be determined according to practical situations.

The end of intaking of toilet bowl drain pipe 5 communicates with the toilet bowl, goes out water end and toilet bowl outlet water seal protection device 3 intercommunication, the play water end of toilet bowl outlet water seal protection device 3 through an arc pipe 21 with first drain port intercommunication, communicate with drainage manifold 2 promptly, the effect of toilet bowl outlet water seal protection device 3 is that realize toilet bowl drain pipe 5 water seal, prevent that the smell, bacterium, virus etc. of drainage manifold 2 and drainage riser 1 from getting into the toilet bowl, also can prevent simultaneously that mouse, worm etc. from climbing into in the toilet bowl from drainage riser 1.

In this embodiment, the water seal protection device 3 for the toilet seat drain opening comprises a movable plate 31 and a shell 32 with two open ends, wherein one open end of the two ends of the shell 32 is communicated with the toilet seat drain pipe 5 through a square-round adapter 4, the other end of the shell is communicated with the arc pipe 21 through the square-round adapter 4, and a sealing structure is arranged between the two ends of the shell 32 and the square-round adapter 4 to prevent water leakage. The movable plate 31 is provided in the housing 32 to block openings at both ends of the housing 32, and the movable plate 31 is movable in the housing 32, so that the movable plate 31 can rotate along the inner wall of the housing 32 under a certain water pressure to communicate both ends of the housing 32. Specifically, the movable plate 31 is obliquely arranged in the housing 32 towards the toilet bowl drain pipe 5, the upper end of the movable plate 31 is hinged on the inner wall of the housing 32, and the lower end of the movable plate 31 abuts against the bottom end of the housing 32, so that the lower end of the movable plate 31 can rotate along the hinged end towards the direction close to the drain collector 2 under the action of certain water pressure to enable the two ends of the housing 32 to be communicated, and water discharged from the toilet bowl drain pipe 5 can enter the drain collector 2 through the toilet bowl drain port water seal protector 6. Meanwhile, the bottom wall of the housing 32 is provided withWith baffles 33 The baffle 33 abuts against the lower end of the movable plate 31 to restrict the movable plate 31 from rotating toward the direction approaching the toilet bowl drain pipe 5, so that the movable plate 31 can only rotate toward the direction approaching the drain collector 2 and cannot rotate in the opposite direction, and odor, bacteria, viruses and the like of the drain collector 2 and the drain stand pipe 1 can be prevented from entering the toilet bowl, and simultaneously mice, insects and the like can be prevented from climbing into the toilet bowl from the drain stand pipe 1,baffle 33 and shell 32 are integrated structure. The arc pipe 21 transversely sets up, because the arc pipe 21 has certain radian to the discharged water forms tangent line formula drainage through arc pipe 21 lateral flow in the toilet bowl, then the whirl discharges into drainage concentrator 2 under the effect of gravity, and tangent line formula drainage can reduce the vortex phenomenon, and the drainage is more smooth, can reduce the air pressure fluctuation in the drainage riser 1.

The floor drain pipes 8 are transversely arranged, namely transversely arranged along a floor layer, in the embodiment, the number of the floor drain pipes 8 is two, the two floor drain pipes 8 are communicated through a drain tee joint 10, the floor drain pipes 8 are connected with the drain tee joint 10 through a connecting pipe hoop 9, the other water inlet end of the drain tee joint 10 is connected with a same-layer drain floor 12, the water inlet end of the floor drain pipe 8 is connected with the other same-layer drain floor 12 through a bent pipe 11, the bent pipe 11 is connected with the floor drain pipes 8 and the same-layer drain floor 12 through connecting pipe hoops 9, the water outlet end of the floor drain pipe 8 is connected with a trap 22, and the water outlet end of the trap 22 is communicated with the second water outlet, namely communicated with the drainage manifold 2. In this embodiment, floor drain 8, connecting pipe hoop 9, drainage tee bend 10 and elbow pipe 11 are flat pipe, specifically can be oval pipeline, and the minor axis of oval pipeline sets up along vertical direction to when the pipeline along transverse distribution, the height of flat pipe is lower, when the same floor installation, reduces the conflict with floor layer upper mat layer thickness.

In this embodiment, the trap 22 is a curved pipe, which may be a substantially S-shaped pipe or a substantially W-shaped pipe, the trap 22 is disposed around the side wall of the drainage collector 2, and the water inlet end of the trap 22 is higher than the water outlet end thereof, because the trap 22 is curved and surrounds the side wall of the drainage collector 2, the water discharged from the drainage pipe 8 of the floor drain forms a rotational flow through the trap 22 and tangentially discharges into the drainage collector 2, so that the drainage is smoother, the self-cleaning and rotational flow effects are better, the water seal ratio is increased, the water seal stability is better, the pressure fluctuation in the vertical drainage pipe 1 can be reduced, and the trap 22 is curved, that is, the heights of the bottom walls thereof are different, so that the water seal can be formed, and the odor, bacteria, viruses and the like of the drainage collector 2 and the vertical drainage pipe 1 can be prevented from entering the room through the drainage floor drain 12 on the same, causing pollution. In this embodiment, the drainage collector 2 and the trap 22 are integrated, so that a sealant or a rubber ring is not needed, and the risk of water leakage caused by long-term aging of the sealant or the rubber ring is reduced.

The trap 22 is further provided with a water inlet 23 for supplying water into the trap 22, and particularly, the water inlet 23 is arranged at one end close to the floor drain pipe 8, so that tap water is supplied into the trap 22 through the water inlet 23, the trap 22 is dredged by using the pressure of the tap water, the safety of the trap water seal 22 and the smooth drainage of the trap 22 are guaranteed, and the blockage is prevented. Be connected with inlet tube 6 on the water inlet 23, the end of intaking of inlet tube 6 can communicate with the running water, be connected with the controller 7 that is used for controlling the break-make of inlet tube 6 on the inlet tube 6, dredge or close trap 22 through 7 automatic control of controller, also can set up to regularly dredge and regularly close trap 22 through controller 7, can in time dredge convenient control to trap 22 in time.

As shown in fig. 8, when the drainage system in this embodiment is installed, the floor drain pipe 8, the connecting pipe hoop 9, the drainage tee 10, the elbow pipe 11 and the same-layer drainage floor drain 12 are all laid with the cushion layer 14, and then the finishing layer 15 is laid on the cushion layer 14, so that the same-layer drainage of the system is realized.

In the embodiment, by arranging the curved trap 22, the concentrated water seal of the floor drain part is realized, the phenomenon that odor, bacteria, viruses and the like of the drainage concentrator 2 and the drainage vertical pipe 1 enter the room through the same-layer drainage floor drain 12 to cause pollution is avoided, and the rotational flow drainage is realized through the trap 22, so that the drainage is smoother. By arranging the water seal protection device 3 at the water outlet of the toilet bowl, odor, bacteria, viruses and the like of the drainage collector 2 and the vertical drainage pipe 1 can be prevented from entering the toilet bowl, and rats, insects and the like can be prevented from climbing into the toilet bowl from the vertical drainage pipe 1. The toilet bowl water discharge pipe 5 is used for discharging water in a tangent mode through the arc-shaped pipe 21, so that the vortex phenomenon can be reduced, the water discharge is smoother, and the air pressure fluctuation in the water discharge vertical pipe 1 can be reduced. The trap 22 and the drainage collector 2 are of an integral structure, so that the stability of the trap 22 structure is improved, and the water leakage risk is reduced compared with a split structure. The trap 22 is provided with a water inlet, and the trap 22 is replenished with water and dredged through the water inlet, so that the water seal safety and the water discharge smoothness are improved. The floor drain drainage system adopts the flat pipe and the pipe fitting thereof, thus solving the contradiction between the pipe diameter size and the cushion layer size.

The above are merely characteristic embodiments of the present invention, and do not limit the scope of the present invention in any way. All technical solutions formed by equivalent exchanges or equivalent substitutions fall within the protection scope of the present invention.

Claims (10)

1. A cyclonic peer drainage system, comprising:

the drainage collector (2) is provided with a first drainage port and a second drainage port on the side wall;

the vertical drainage pipe (1) is respectively connected to the upper end and the lower end of the drainage collector (2);

a toilet bowl drain pipe (5), the water inlet end of which is communicated with the toilet bowl;

the water inlet end of the water seal protection device (3) of the toilet bowl water outlet is communicated with the water outlet end of the toilet bowl water outlet pipe (5), and the water outlet end is communicated with the first water outlet through an arc-shaped pipe (21);

a floor drain pipe (8), the water inlet end of which is connected with a same-layer drainage floor drain (12);

and the water inlet end of the trap (22) is communicated with the water outlet end of the floor drain pipe (8), and the water outlet end is communicated with the second water outlet.

2. A spiral-flow type co-floor drainage system as claimed in claim 1, wherein the trap (22) is a curved pipe, the trap (22) is disposed around the side wall of the drainage manifold (2), and the water inlet end of the trap (22) is higher than the water outlet end thereof.

3. A spiral-flow type peer drainage system as claimed in claim 1, wherein the drainage manifold (2) and the trapway (22) are of unitary construction.

4. A spiral-flow type peer drainage system as claimed in claim 1, wherein the trap (22) further has a water inlet (23) at an end near the drain pipe (8) for replenishing water into the trap (22).

5. A spiral-flow type same-floor drainage system as claimed in claim 4, wherein the water inlet (23) is connected with a water inlet pipe (6), and the water inlet pipe (6) is connected with a controller (7) for controlling the on-off of the water inlet pipe (6).

6. The spiral-flow type same-floor drainage system as claimed in claim 1, wherein the toilet bowl drainage port water seal protection device (3) comprises a housing (32) with openings at two ends and a movable plate (31) for isolating the openings at two ends of the housing (32), the movable plate (31) is movably arranged in the housing (32), and the movable plate (31) can rotate along the inner wall of the housing (32) under the action of water pressure to enable the two ends of the housing (32) to be communicated.

7. A spiral-flow type co-floor drainage system as claimed in claim 6, wherein the movable plate (31) is disposed in the housing (32) obliquely with respect to the horizontal direction, and the upper end of the movable plate (31) is hinged to the inner wall of the housing (32) and the lower end can rotate along the hinged end toward the drainage collector (2).

8. The spiral-flow type same-floor drainage system as claimed in claim 7, wherein a baffle (33) is disposed on the bottom wall of the housing (32), and the baffle (33) abuts against the lower end of the movable plate (31) to limit the movable plate (31) from rotating toward the toilet drain pipe (5).

9. A spiral-flow type same-floor drainage system as claimed in claim 1, wherein the inner walls of the drainage collector (2) and the drainage riser (1) are provided with laterally convex spiral-flow blades (16), and the spiral-flow blades (16) are obliquely arranged on the inner walls of the drainage collector (2) and the drainage riser (1).

10. A spiral-flow type co-floor drainage system as claimed in claim 1, wherein the floor drain pipe (8) is an elliptical pipe with its minor axis arranged in a vertical direction.

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