Floor structure and sewer drainage assembly thereof

Abstract

The utility model discloses a floor structure and a sewer drainage assembly thereof, and the sewer drainage assembly is configured in the floor structure and comprises a drainage main pipeline; the floor drain pipeline is provided with a floor drain water inlet end and a floor drain water outlet end, and the floor drain water inlet end can collect sewage on the ground; the auxiliary pipeline is provided with an auxiliary water inlet end capable of being communicated with an interlayer in the floor, and the auxiliary pipeline is communicated with the drainage main pipeline and used for draining accumulated water in the interlayer; the floor drain water outlet end is connected with the auxiliary water inlet end in an inserted mode, and an annular channel capable of guiding accumulated water into the auxiliary pipeline is formed through a gap between the outer pipe wall of the floor drain water outlet end and the inner pipe wall of the auxiliary water inlet end. The floor drain pipeline in the sewer drainage assembly is matched with the auxiliary pipeline, and the auxiliary pipeline is communicated with the interlayer of the floor structure, so that the technical problem that accumulated water stored in the interlayer of the floor structure through permeation cannot be effectively drained can be solved.

Description

Technical Field

[0001] The present application discloses a technical field related to kitchen and bathroom drainage systems, and more particularly to a floor structure and a sewer drainage assembly thereof. Background Art

[0002] At present, drainage pipes in kitchens, bathrooms, etc. are generally arranged in the waterproof structure at the bottom of the floor and the building layer, and drainage floor drains or auxiliary drainage facilities are installed on the ground of the building to ensure basic living needs.

[0003] The sewer drainage assembly in the prior art is generally composed of drainage pipes connected to the ground or ground facilities and drainage main pipes connected to each drainage pipe. When the used domestic water is collected through floor drains or ground facilities, the water is finally discharged to the outside of the living area through the drainage main pipe.

[0004] With the existing drainage assembly, when the waterproof structure is damaged, the accumulated water will directly leak through the waterproof layer. Or when the waterproof of the building decoration layer is damaged but the waterproof of the structural board is not damaged, the accumulated water will be retained in the floor structure, causing the surface of the building decoration to become damp and alkaline. In the long run, the accumulated water will gradually damage the building decoration floor, and there is currently no effective remedial measure. Utility Model Content

[0005] The present application discloses a floor structure and a sewer drainage assembly thereof, which aims to solve a technical problem that the accumulated water stored in the interlayer of the floor structure through infiltration cannot be effectively discharged by coordinating the floor drain pipe and the auxiliary pipe in the sewer drainage assembly and connecting the auxiliary pipe with the interlayer of the floor structure.

[0006] In order to solve the above technical problems, the embodiment disclosed in the present application provides a sewer drainage assembly, which mainly includes: a drainage main pipe; a floor drain pipe, which has a floor drain water inlet end and a floor drain water outlet end, and the floor drain water inlet end can collect sewage on the ground; and an auxiliary pipe, which has an auxiliary water inlet end that can be connected to the internal interlayer of the floor, and the auxiliary pipe is connected to the drainage main pipe for draining the accumulated water in the interlayer;

[0007] The water outlet of the floor drain is connected to the auxiliary water inlet by plugging, and an annular channel is formed through the gap between the outer pipe wall of the water outlet of the floor drain and the inner pipe wall of the auxiliary water inlet, which can guide the accumulated water into the auxiliary pipeline.

[0008] In some embodiments, it also includes: a sewage pipe, which is used to connect the toilet pool embedded in the ground; the sewage pipe is connected to the main drainage pipe through an auxiliary pipe.

[0009] In some embodiments, the sewage pipe is divided into a curved pipe section and a straight pipe section; the curved pipe section has a sewage inlet for connecting to the toilet pool, and the straight pipe section has a sewage outlet connected to the auxiliary pipe.

[0010] In some embodiments, a filter component is disposed on the port of the auxiliary water inlet end; the filter component is provided with a plug interface that matches the diameter of the floor drain pipe, and the filter component is also provided with filter holes around the plug interface.

[0011] In some embodiments, the auxiliary water inlet end is configured as a flared structure with a gradually increasing pipe diameter to form a slope step for guiding accumulated water into the auxiliary pipe.

[0012] In some embodiments, the auxiliary pipe is divided into a receiving section and a discharge section by bending; the port of the receiving section can be connected to the internal partition of the floor to form an auxiliary water inlet end, and the internal pipe diameter of the receiving section is larger than the external pipe diameter of the floor drain pipe; the angle between the discharge section and the receiving section is set to an obtuse angle, and the port of the discharge section is connected to the main drainage pipe.

[0013] The disclosed embodiment of the present application also provides a floor structure, which mainly includes:

[0014] A concrete layer and a floor layer arranged below the concrete layer; a waterproof layer is fixedly arranged at the bottom of the concrete layer;

[0015] Among them, the sewer drainage assembly provided in the above embodiment is also configured in the floor structure.

[0016] In some embodiments, the auxiliary water inlet is embedded in the floor layer through a sleeve to connect the port of the auxiliary water inlet to the gap between the concrete layer and the floor layer; after the floor drain pipe penetrates the concrete layer, the floor drain outlet is inserted into the port of the auxiliary water inlet.

[0017] In some embodiments, the surface of the floor layer facing the concrete layer is gradually recessed toward the position where the auxiliary water inlet end is embedded, so as to guide the accumulated water to flow into the auxiliary pipe through the auxiliary water inlet end.

[0018] In some embodiments, the main drainage pipe is connected to the sewage pipe through an auxiliary pipe; the sewage outlet of the sewage pipe is connected to the auxiliary pipe, and the sewage pipe passes through the concrete layer and the floor layer and is connected to the toilet pool through the sewage inlet.

[0019] Through the above technical scheme, the floor structure and the sewer drainage assembly thereof disclosed in the present application connect the auxiliary pipe connected to the drainage main pipe with the interlayer gap in the floor, and insert the floor drain outlet end of the floor drain pipe into the auxiliary water inlet end of the auxiliary pipe. Since the pipe diameter of the auxiliary pipe is larger than the pipe diameter of the floor drain pipe, a gap is formed between the outer pipe wall of the floor drain outlet end and the inner pipe wall of the auxiliary water inlet end to form an annular channel. When water accumulates in the interlayer inside the floor, the accumulated water can flow into the drainage main pipe through the annular channel and the auxiliary pipe, thereby realizing the drainage function for the interlayer inside the floor. In addition, the drainage assembly provided by the present application can also achieve the purpose of minimizing the increase in the layout volume of the drainage assembly. Since the drainage assembly in the present application does not change the layout conditions too much, it effectively improves the practicality and ensures the value of practical application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments disclosed in the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments disclosed in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of a floor structure and a sewer drainage assembly thereof in the embodiment disclosed in the present application;

[0022] Figure 2 yes Figure 1 Enlarged view of part A.

[0023] Description of reference numerals:

[0024] 1. Drainage main pipeline;

[0025] 2. Floor drain pipe; 21. Floor drain water inlet; 22. Floor drain water outlet;

[0026] 3. Auxiliary pipeline; 3a. Accommodation section; 3b. Discharge section; 31. Auxiliary water inlet end;

[0027] 4. Sewage pipe; 4a. Bend section; 4b. Straight section; 41. Sewage inlet; 42. Sewage outlet;

[0028] 5. Filter component; 6. Concrete layer; 7. Floor layer; 8. Casing. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the embodiments disclosed in the present application in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles disclosed in the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0030] The present application discloses and provides these embodiments in order to make the present application disclosed thoroughly and completely, and to fully express the scope disclosed in the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0031] It should be noted that, in the description disclosed in this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the disclosure of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the disclosure of this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0032] In addition, the words "first", "second" and similar words used in the disclosure of this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of also including other elements.

[0033] It should also be noted that in the description disclosed in this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the disclosure of this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0034] All terms used in this application disclosure have the same meanings as those understood by those of ordinary skill in the art to which this application disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as those in general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0036] At present, from the perspective of the development of the social and economic system, the expansion of urbanization construction has become more and more extensive. As time goes by, various problems have also appeared in various buildings, including the problem that the PVC pipes in the sewer drainage assembly corrode and water penetrates into the waterproof structure of the floor, which causes the waterproof structure to gradually lose its own waterproof function. In the long run, its structure cannot be remedied. If maintenance is required, the waterproof structure can only be rebuilt, which has a high construction cost and cannot be completed in a short time, causing unnecessary trouble.

[0037] The inventor of the present application has discovered that the current sewer drainage assembly can solve the technical problem by simply adding a drainage pipe connected to the interlayer of the floor structure, thereby extending the service life of the floor waterproof structure. However, since the drainage assemblies currently used in household or commercial buildings are too complicated, it is no longer easy to configure a special pipe on each drainage pipeline to discharge the water accumulated in the interlayer. Therefore, it is necessary to configure the pipe without affecting the layout volume of the original drainage assembly too much, and even facilitate other drainage pipes to connect to the main drainage pipe through the added pipe, so that the layout conditions of the improved drainage assembly are almost the same as before the improvement. While being able to effectively discharge the water accumulated in the interlayer, it can also solve the technical problem of limited layout space after adding a special pipe.

[0038] In order to solve the above technical problems, refer to Figure 1 and Figure 2 As shown, the present application proposes a sewer drainage assembly, which mainly includes: a drainage main pipeline 1;

[0039] A floor drain pipe 2, which has a floor drain water inlet end 21 and a floor drain water outlet end 22, and the floor drain water inlet end 21 can collect sewage on the ground; and an auxiliary pipe 3, which has an auxiliary water inlet end 31 that can communicate with the internal interlayer of the floor, and the auxiliary pipe 3 is connected to the drainage main pipe 1, and is used to discharge the accumulated water in the interlayer;

[0040] The floor drain outlet 22 is connected to the auxiliary water inlet 31 by plugging, and an annular channel for introducing accumulated water into the auxiliary pipeline 3 is formed through the gap between the outer pipe wall of the floor drain outlet 22 and the inner pipe wall of the auxiliary water inlet 31.

[0041] By adopting the above structure, the floor drain pipe 2 can penetrate into the floor, so that the end connected to the space above the floor is the floor drain water inlet end 21, and the end located in the internal interlayer of the floor is the floor drain water outlet end 22, so that the water accumulated on the upper surface (ground) of the floor can be discharged into the drainage main pipe 1 through the floor drain pipe 2. The technical key points of the present application are that the drainage main pipe 1 is connected with the interlayer inside the floor through the auxiliary pipe 3, so that the accumulated water in the interlayer inside the floor can be discharged, and the floor drain water outlet end 22 of the floor drain pipe 2 is inserted into the auxiliary water inlet end 31 of the auxiliary pipe 3 in a plug-in manner. The auxiliary pipe 3 selects a drainage pipe with a larger diameter than that of the floor drain pipe 2, so as to form an annular channel between the outer pipe wall of the floor drain water outlet end 22 and the inner pipe wall of the auxiliary water inlet end 31, which can guide the accumulated water into the auxiliary pipe 3, and the accumulated water in the internal interlayer of the floor enters the auxiliary pipe 3 through the annular channel until it is discharged into the drainage main pipe 1. It not only solves the technical problem that the accumulated water in the internal compartments of the floor cannot be effectively discharged, but also presents a smaller assembly layout volume compared to the technical solution of directly adding dedicated pipelines, making the layout conditions almost the same as those of traditional sewer drainage assemblies, effectively improving the practicality of the sewer drainage assembly provided in this application.

[0042] In some embodiments, it also includes: a sewage pipe 4, which is used to connect the toilet pool embedded in the ground; the sewage pipe 4 is connected to the main drainage pipe 1 through the auxiliary pipe 3.

[0043] With the above structure, the sewage pipe 4 or other drainage pipelines may not be able to be directly connected to the drainage main pipe 1 when designing the layout of the drainage assembly, but can be connected to the drainage main pipe 1 through the connecting auxiliary pipe 3, so that the layout of the sewer drainage assembly is simpler and convenient for subsequent maintenance.

[0044] In some embodiments, the sewage pipe 4 is divided into a curved pipe section 4a and a direct pipe section 4b; the curved pipe section 4a has a sewage inlet 41 for connecting to the toilet pool, and the direct pipe section 4b has a sewage outlet 42 connected to the auxiliary pipe 3.

[0045] With the above structure, the curved pipe section 4a is in an S-shaped structure to form a water trap. Water accumulates in the water trap to prevent the sewage pipe 4 from returning to the toilet pool through the sewage inlet 41. When the toilet pool increases the amount of water to a certain extent, a siphon effect can be generated to discharge sewage. The part designed for the siphon effect belongs to the prior art and will not be described in detail here; the direct current section 4b is formed below the curved pipe section 4a, and the direct current section 4b is extended downward to be connected with the auxiliary pipe 3, so that the sewage can be discharged into the drainage main pipe 1 through the auxiliary pipe 3.

[0046] In some embodiments, a filter component 5 is disposed on the port of the auxiliary water inlet end 31; the filter component 5 is provided with an insertion port that matches the diameter of the floor drain pipe 2, and the filter component 5 is also provided with filter holes around the insertion port.

[0047] With the above structure, the filter component 5 is an annular sheet structure so that it can be firmly installed on the port of the auxiliary water inlet end 31, and the plug interface and the floor drain pipe 2 can be tightly matched through size restrictions to prevent fine particles from flowing into the auxiliary pipe 3 through the gap between the plug interface and the floor drain pipe 2 and causing blockage. A sealing ring can also be configured on the plug interface to prevent accumulated water from flowing into the auxiliary pipe 3 from the gap between the plug interface and the floor drain pipe 2. That is to say, the accumulated water stored in the interlayer inside the floor through infiltration can only flow into the auxiliary pipe 3 through the filter holes through the annular channel. The size of each filter hole can be set to be smaller than the fine particles in the accumulated water to achieve a filtering effect, thereby preventing debris from entering the auxiliary pipe 3 and causing blockage.

[0048] In some embodiments, the auxiliary water inlet end 31 is configured as a flared structure with a gradually increasing pipe diameter to form a slope step for guiding accumulated water into the auxiliary pipe 3 .

[0049] By adopting the above structure, after the auxiliary water inlet end 31 is set as a flared structure, the port of the auxiliary water inlet end 31 can be enlarged, and the range of the filtering part on the filter component 5 can be enlarged so that more filtering holes can be arranged, and the slope step formed by the flared structure can quickly guide the accumulated water into the auxiliary pipe 3. It can be understood that the accumulated water in the internal interlayer of the floor flows into the auxiliary pipe 3 along the slope step, rather than falling into the auxiliary pipe 3, so that the port of the auxiliary water inlet end 31 has a remaining part to discharge the air in the pipe, thereby making the flow rate of the accumulated water entering the auxiliary pipe 5 faster.

[0050] In some embodiments, the auxiliary pipe 3 is divided into a containing section 3a and a discharge section 3b by bending; the port of the containing section 3a can be connected to the internal partition of the floor to form an auxiliary water inlet end 31, and the internal pipe diameter of the containing section 3a is larger than the external pipe diameter of the floor drain pipe 2; the angle between the discharge section 3b and the containing section 3a is set to an obtuse angle, and the port of the discharge section 3b is connected to the drainage main pipe 1.

[0051] With the above structure, the accommodating section 3a can be arranged perpendicular to the floor structure, so that the accommodating section 3a can receive the sewage discharged by the floor drain pipe 2 and the accumulated water in the internal interlayer of the floor, and the discharge section 3b is connected to the drainage main pipe 1. Since the angle between the discharge section 3b and the accommodating section 3a forms an obtuse angle, when the accommodating section 3a is perpendicular to the floor structure, the discharge section 3d can be extended downwardly inclined until it is connected to the drainage main pipe 1, so that the sewage entering the auxiliary pipe 3 can be accelerated to be discharged into the drainage main pipe 1.

[0052] The present application also proposes a floor structure, which mainly comprises: a concrete layer 6 and a floor slab layer 7 arranged below the concrete layer 6; a waterproof layer is fixedly arranged at the bottom of the concrete layer 6;

[0053] Among them, the sewer drainage assembly in the above embodiment is also arranged in the floor structure.

[0054] With the above structure, the concrete layer 6 is the support body of the floor structure, and specifically, the indoor floor can be formed by laying the floor, and the toilet connected to the sewage pipe 4 and the floor drain water inlet 21 formed by the floor drain pipe 2 are both embedded in the ground to realize the drainage and sewage discharge functions. The technical point of the floor structure is that the water infiltrated and accumulated in the gap between the concrete layer 6 and the floor layer 7 can be discharged by the auxiliary pipe 3. It should be noted that the accumulated water due to infiltration or leakage between other layers in the floor structure can also be discharged by the auxiliary pipe 3. That is to say, the auxiliary pipe 3 can be connected to the space of any interlayer in the floor structure to discharge the accumulated water in the floor structure.

[0055] In some embodiments, the auxiliary water inlet end 31 is embedded in the floor layer 7 through the sleeve 8 to connect the port of the auxiliary water inlet end 31 to the gap between the concrete layer 6 and the floor layer 7; after the floor drain pipe 2 penetrates the concrete layer 6, the floor drain outlet end 22 is inserted into the port of the auxiliary water inlet end 31.

[0056] By adopting the above structure, when constructing the floor layer 7, a sleeve 8 can be pre-buried in the floor layer 7 to facilitate the subsequent configuration of the pipeline, and the auxiliary pipeline 3 in the above embodiment is passed through the floor layer 7 through the sleeve 8 and connected with the drainage main pipeline 1 below the floor layer 7. Specifically, the auxiliary water inlet end 31 is embedded in the sleeve 8, and the floor drain pipeline 2 can pass through the concrete layer 6 in the same way until it is connected with the auxiliary pipeline 3. It should be noted that the floor drain outlet end 22 of the floor drain pipeline 2 is inserted into the auxiliary pipeline 3, and in terms of design, the floor drain pipeline 2 adopts a PVC pipe with a smaller diameter than the auxiliary pipeline 3, so that the accumulated water between the floor layer 7 and the concrete layer 6 can also flow into the drainage main pipeline 1 through the auxiliary pipeline 3.

[0057] In some embodiments, the surface of the floor layer 7 facing the concrete layer 6 is gradually recessed toward the position where the auxiliary water inlet end 31 is embedded, so as to guide the accumulated water to flow into the auxiliary pipe 3 through the auxiliary water inlet end 31 .

[0058] The above structure is adopted, that is, an inclination angle is set on the floor layer 7, and the position of the auxiliary water inlet port is set to the lowest position, so that the accumulated water can flow into the auxiliary pipe 3 autonomously; and in order to prevent a small amount of accumulated water from being unable to be discharged, the surface of the floor layer 7 facing the concrete layer 6 adopts a funnel structure that is gradually recessed toward the auxiliary water inlet end 31, so that the accumulated water accumulated in the interlayer and the accumulated water that has been infiltrated or leaked can be effectively discharged into the drainage main pipe 1 through the auxiliary pipe 3.

[0059] In some embodiments, the main drainage pipe 1 is connected to the sewage pipe 4 through the auxiliary pipe 3; the sewage outlet 42 of the sewage pipe 4 is connected to the auxiliary pipe 3, and the sewage pipe 4 passes through the concrete layer 6 and the floor layer 7 and is connected to the toilet pool through the sewage inlet 41.

[0060] With the above structure, the sewage pipe 4 or other drainage pipelines may not be able to be directly connected to the drainage main pipe 1 when designing the layout of the drainage assembly, but can be connected to the drainage main pipe 1 through the connecting auxiliary pipe 3, so that the layout of the sewer drainage assembly is simpler and convenient for subsequent maintenance.

[0061] So far, the various embodiments disclosed in the present application have been described in detail. In order to avoid obscuring the concept disclosed in the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0062] Although some specific embodiments disclosed in the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are only for illustration, and are not intended to limit the scope disclosed in the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit disclosed in the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A sewer drainage assembly, characterized in that: include: Drainage main pipe (1); A floor drain pipe (2) having a floor drain water inlet end (21) and a floor drain water outlet end (22), wherein the floor drain water inlet end (21) is capable of collecting sewage on the ground; and An auxiliary pipe (3) having an auxiliary water inlet end (31) capable of communicating with the internal interlayer of a floor, and the auxiliary pipe (3) is in communication with the main drainage pipe (1) for draining the accumulated water in the interlayer; The floor drain outlet (22) is connected to the auxiliary water inlet (31) in a plug-in manner, and an annular channel is formed through the gap between the outer pipe wall of the floor drain outlet (22) and the inner pipe wall of the auxiliary water inlet (31) to discharge the accumulated water into the auxiliary pipeline (3).

2. The sewer drainage assembly according to claim 1, characterized in that: Also includes: A sewage pipe (4) for connecting to a toilet tank embedded in the ground; The sewage pipe (4) is connected to the main drainage pipe (1) through the auxiliary pipe (3).

3. The sewer drainage assembly according to claim 2, characterized in that: The sewage pipe (4) is divided into a curved pipe section (4a) and a straight pipe section (4b); The curved pipe section (4a) has a sewage inlet (41) for connecting to the toilet tank, and the straight section (4b) has a sewage outlet (42) connected to the auxiliary pipeline (3).

4. The sewer drainage assembly according to claim 1, characterized in that: A filter component (5) is disposed on the port of the auxiliary water inlet end (31); The filter component (5) is provided with an insertion port that matches the pipe diameter of the floor drain pipe (2), and the filter component (5) is also provided with filtering holes around the insertion port.

5. The sewer drainage assembly according to claim 1, characterized in that: The auxiliary water inlet end (31) is configured as a flared structure with a gradually increasing pipe diameter, so as to form a slope step for guiding accumulated water to enter the auxiliary pipe (3).

6. The sewer drainage assembly according to claim 1, characterized in that: The auxiliary pipeline (3) is divided into a receiving section (3a) and a discharge section (3b) by bending; The port of the accommodating section (3a) can be communicated with the internal partition of the floor to form the auxiliary water inlet end (31), and the internal pipe diameter of the accommodating section (3a) is larger than the external pipe diameter of the floor drain pipe (2); The included angle between the discharge section (3b) and the accommodating section (3a) is set to be an obtuse angle, and the port of the discharge section (3b) is connected to the main drainage pipeline (1).

7. A floor structure, characterized in that: include: A concrete layer (6) and a floor layer (7) arranged below the concrete layer (6); A waterproof layer is fixedly provided at the bottom of the concrete layer (6); Wherein, the floor structure is also provided with a sewer drainage assembly as described in any one of claims 1 to 6.

8. The floor structure according to claim 7, characterized in that: The auxiliary water inlet end (31) is embedded in the floor layer (7) through a sleeve (8) so that the port of the auxiliary water inlet end (31) is connected to the gap between the concrete layer (6) and the floor layer (7); After the floor drain pipe (2) penetrates the concrete layer (6), the water outlet end (22) of the floor drain is inserted into the port of the auxiliary water inlet end (31).

9. The floor structure according to claim 8, characterized in that: The surface of the floor slab layer (7) facing the concrete layer (6) is gradually recessed toward the position where the auxiliary water inlet end (31) is embedded, so as to guide the accumulated water to flow into the auxiliary pipe (3) through the auxiliary water inlet end (31).

10. The floor structure according to claim 8, characterized in that The main drainage pipe (1) is connected to the sewage pipe (4) through the auxiliary pipe (3); The sewage outlet (42) of the sewage pipe (4) is connected to the auxiliary pipe (3); the sewage pipe (4) passes through the concrete layer (6) and the floor layer (7) and is connected to the toilet tank through the sewage inlet (41).

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