CN215406342U - Embedded double-riser same-layer drainage pipe fitting system - Google Patents

Abstract

The application relates to the technical field of building drainage pipe fitting systems, and discloses a pre-buried double-riser same-floor drainage pipe fitting system which comprises a riser component, a concentrated water seal floor drain component and a non-water seal floor drain component, wherein the riser component comprises a telescopic joint, a drainage riser and an exhaust pipe, the concentrated water seal floor drain component comprises the floor drain component and the water seal component from top to bottom, the floor drain component is connected with the water seal component through a first adjusting component, the first adjusting component comprises a plurality of first adjusting rings, the axes of the first adjusting rings are overlapped and connected, one end of each first flat pipe is connected and communicated with a pipe body of the drainage riser, the other end of each first flat pipe is connected and communicated with the outer wall of the water seal component, one end of each second flat pipe is connected and communicated with the outer wall of the water seal component, the other end of each second flat pipe is connected and communicated with the non-water seal floor drain component, and the height of each first adjusting component can be correspondingly changed by changing the number of the first adjusting rings forming the first adjusting component, thereby realizing that the installation height of the floor drain is adjustable.

Description

Embedded double-riser same-layer drainage pipe fitting system

Technical Field

The application relates to the technical field of building drain pipe fitting systems, in particular to a pre-buried double-riser same-layer drain pipe fitting system.

Background

The same-floor drainage pipe system in the building at present comprises the following two modes:

the first one is interlayer drainage, installs the drainage branch pipe in the underfloor on this layer, and the drainage mode under the roof of one deck down promptly adopts the mode of interlayer drainage, and the existence occupies that the lower floor space is serious, the noise is big during the drainage, the pipeline overhauls the difficulty and the pipeline can produce great influence scheduling problem to the resident family of lower floor if the seepage takes place.

The second is for falling board formula with layer drainage, all lay all drainage branch pipes in the subsurface, because thickness is not enough, concrete floor just reduces the take the altitude downwards, form and fall the board groove, although the problem that interlayer drainage seepage influences the resident family of lower floor has been solved, but need reduce the height of floor in piping erection department, among the prior art, the height of floor has roughly reduced 40 centimetres, lead to encroaching the space of the resident family of lower floor in a large number, and fall the board inslot and easily take place ponding phenomenon, the pipeline overhaul is very difficult, inconvenient construction scheduling problem.

Due to the problems, the installation height of the floor drain after actual pouring is difficult to determine during construction, the matching of the height of a pouring layer and the floor drain cannot be guaranteed, errors can be reduced as much as possible even if a construction scheme is determined repeatedly, if the actual situation changes greatly and the pouring layer is too low, secondary pouring is needed to achieve the installation height, and if the pouring layer is too high, excavation is needed to reduce the installation height.

SUMMERY OF THE UTILITY MODEL

The main aim at of this application provides a two riser of pre-buried type is with layer drainage pipe fitting system, aims at solving among the prior art problem that floor drain mounting height can't adjust according to actual conditions.

In order to realize the above-mentioned purpose, the application provides a two riser of pre-buried type are with layer water drainage pipe fitting system, include:

the vertical pipe assembly comprises a telescopic joint, a drainage vertical pipe and an exhaust pipe, wherein the telescopic joint is sleeved with a water inlet of the drainage vertical pipe, and any position of a pipe body of the exhaust pipe is connected and communicated with the pipe body of the drainage vertical pipe through a branch pipe;

the centralized water seal floor drain assembly comprises a floor drain assembly and a water seal assembly from top to bottom, the floor drain assembly and the water seal assembly are connected through a first adjusting piece, and the first adjusting piece comprises a plurality of first adjusting rings which are overlapped in axis and connected in a superposed manner;

a water seal-free floor drain assembly;

one end of the first flat pipe is connected and communicated with the pipe body of the vertical drainage pipe, and the other end of the first flat pipe is connected and communicated with the outer wall of the water seal component;

one end of the second flat pipe is connected and communicated with the outer wall of the water seal assembly, and the other end of the second flat pipe is connected and communicated with the non-water seal floor drain assembly.

Optionally, the water seal assembly comprises a water seal pipe and a water seal core detachably arranged in the water seal pipe, and the top end of the water seal pipe is connected and communicated with the top end of the first adjusting piece;

the water seal core divides the inner cavity of the water seal pipe into a water inlet cavity, a water seal cavity and a drainage cavity;

the upper portion of water seal pipe sets up relative outlet and the water inlet that sets up, and the bottom of water inlet is higher than the bottom of outlet, and the outlet is connected and is communicate with the one end of first flat pipe, and the water inlet is connected with the one end of second flat pipe.

Optionally, the water seal core includes the first water seal wall of laminating with the intake antrum inner wall and separates the intake antrum and the second water seal wall of drainage chamber, and the bottom of second water seal wall is close to the water inlet, and the top of second water seal wall is close to the outlet and is connected with the roof of outlet.

Optionally, the bottom of water seal pipe sets up the reference column and is used for spacing to the bottom of water seal core, and the water seal is intraductal and be close to water inlet department and be provided with spacing post.

Optionally, the upper portion of the water seal pipe is provided with two reserved openings which are oppositely arranged, and the axes of the two reserved openings are overlapped and perpendicular to the axis of the water outlet.

Optionally, the floor drain assembly comprises a support member, a floor drain cover covering the top of the support member, and a tricuspid valve detachably disposed in the support member, the support member being connected to the top end of the first adjustment member and covering the top end opening thereof.

Optionally, the water seal-free floor drain assembly comprises an installation piece, a cover body, a lower-layer step upper filter plate, a second adjusting piece and a regulating valve, wherein the middle part of the installation piece is a double-layer step indent;

the governing valve includes the sleeve pipe, sets up the spliced pole in the sleeve pipe, and the bottom of governing valve sets up can cover governing valve bottom open-ended separation blade, and the separation blade passes through the spring to be connected with the spliced pole.

Optionally, the top of drainage riser is connected first inlet tube, and the lateral wall of first inlet tube is provided with a water inlet, and this water inlet is connected and is communicated the second inlet tube, and the axis of first inlet tube and second inlet tube is certain contained angle setting, and the junction of first inlet tube and second inlet tube is the pipe wall cavity that the volume expands greatly, and the inward flange of this pipe wall cavity is tangent with the inward flange of first inlet tube, second inlet tube respectively.

Optionally, a cake-shaped fireproof base is arranged below the water seal assembly, and a fire retardant is arranged in the fireproof base.

Optionally, the bottom outside of fire prevention base sets up a plurality of stationary blades.

Compared with the prior art, the method has the following beneficial technical effects:

1. this application is through setting up the riser subassembly, concentrate water seal floor drain subassembly, no water seal ground leaks the subassembly and has optimized the drain pipe fitting system architecture, the riser subassembly is used for main drainage, waste gas in the blast pipe wherein can also in time discharge pipe, guarantee that the internal gas pressure of drain pipe is stable, prevent the water plug formation, concentrate water seal floor drain subassembly and guaranteed that the water seal that waste water collects the department is good, can not take place to return smellily, no water seal ground leaks then and uses as the floor drain of dry district, the drainage effect of drain pipe fitting system has been promoted, and the construction degree of difficulty has been reduced, when pouring in advance, can increase/reduce the height of first regulating part through the quantity that increases/reduces first adjustable ring, thereby reach the mesh of adjusting the floor drain height, the height of matching floor drain and pre-buried layer that can be timely, the trouble of secondary construction has been avoided.

2. This application is through optimizing the structure of concentrating water seal floor drain subassembly, can dismantle the setting at the water seal intraductal with the water seal core, and set up and reserved the mouth and be convenient for connect different regions like shower district, wash the basin etc. these regional waste water can collect in concentrated water seal floor drain subassembly department together with the waste water of water inlet, the sharing water seal of multi-channel, the probability that the water seal became invalid has been reduced when having improved the water seal effect, unnecessary waste water can be sent to the riser subassembly through the delivery port and through first flat pipe and discharges, the quantity of trap among the water drainage pipe fitting has been reduced, the construction degree of difficulty has been reduced.

3. The utility model provides a leak the dual filtering action that the subassembly passes through lid and filter plate without water seal ground, has avoided most debris impurity to get into the floor drain along with sewage to there is the separation blade at the governing valve bottom through spring coupling, when having water to pass through, the separation blade is opened by the water-washed, and the spring is tensile, and when no water passes through, the spring replies, and the opening that the pulling separation blade covered the governing valve bottom avoids the foul smell to spill over, the pest climbs out.

Drawings

Fig. 1 is a schematic structural diagram of a pre-buried dual-riser same-layer drainage pipe system according to the present invention;

FIG. 2 is a schematic structural diagram of the centralized water seal floor drain assembly in FIG. 1;

FIG. 3 is a schematic structural diagram of a water seal assembly in the centralized water seal floor drain assembly;

FIG. 4 is a schematic view of the construction of the non-watertight leak-off assembly of FIG. 1;

FIG. 5 is a schematic view of the regulator valve of FIG. 4;

FIG. 6 is a schematic view of the structure of the drainage riser pipe of FIG. 1;

wherein the reference numerals have the following meanings:

1-a riser assembly;

11-a drainage vertical pipe, 111-a first water inlet pipe, 112-a second water inlet pipe, 113-a reinforcing disc, 114-a supporting leg, 115-a baffle plate and 116-a reserved drainage outlet;

12-a telescopic joint;

13-an exhaust pipe;

2-centralized water seal floor drain assembly;

21-floor drain assembly, 211-floor drain cover, 212-support, 213-tricuspid valve check valve;

22-water seal component, 221-limit column, 222-water inlet, 223-water inlet cavity, 224-water seal cavity, 225-positioning column, 226-water drainage cavity, 227-water drainage port, 228-water seal core and 229-water seal pipe;

23-a first adjustment member;

3-a water-seal-free floor drain assembly;

31-a cover body, 32-a filter plate, 33-a mounting piece, 34-a regulating valve, 341-a sleeve, 342-a connecting column and 35-a second regulating piece;

4-a first flat pipe, 5-a second flat pipe, 6-a fireproof base and 61-a fixing sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 6, an embodiment of the present application provides an embedded dual-riser same-layer drainage pipe system, including:

the vertical pipe assembly 1 for drainage comprises an expansion joint 12 used for being connected with an upper-layer drainage pipe assembly, a drainage vertical pipe 11 playing a main drainage role and an exhaust pipe 13 used for exhaust, wherein the expansion joint 12 is sleeved with a water inlet of the drainage vertical pipe 11, a pipe body of the exhaust pipe 13 is communicated with the pipe body of the drainage vertical pipe 11 through a branch pipe, and the expansion joint 12 can automatically adapt to pipe diameter change caused by thermal expansion and cold contraction of a pipe fitting and ensure the stability and tightness of a connection part;

the centralized water seal floor drain assembly 2 collects water flow and carries out water seal, the centralized water seal floor drain assembly 2 comprises a floor drain assembly 21 and a water seal assembly 22 from top to bottom, the floor drain assembly 21 and the water seal assembly 22 are connected through a first adjusting piece 23, and the first adjusting piece 23 comprises a plurality of first adjusting rings which are overlapped in axis and connected in a superposed mode;

the water seal-free floor drain component 3 acts on water leakage in a dry area;

one end of the first flat pipe 4 is connected and communicated with the pipe body of the vertical drainage pipe 11, and the other end of the first flat pipe 4 is connected and communicated with the outer wall of the water seal component 22;

one end of the second flat pipe 5 is connected and communicated with the outer wall of the water seal component 22, and the other end of the second flat pipe 5 is connected and communicated with the non-water seal ground leakage component 3.

As the setting, this application embodiment is through setting up riser subassembly 1, wherein drainage riser 11 is used for main drainage, blast pipe 13 is used for discharging waste gas, guarantee intraductal atmospheric pressure stable, prevent that the water plug from forming, concentrate water seal floor drain subassembly 2 and be used for compiling waste water and carry out the water seal, no water seal floor drain subassembly 3 that dry district used, the structure of whole water drainage pipe fittings system has been optimized, make it can adapt to most service environment, the concentrated water seal floor drain subassembly 2 that collects waste water has reduced the quantity of trap among the water drainage pipe fittings, the water seal can be shared to the multi-channel, the water seal effect has been improved and the probability that the water seal became invalid has been reduced, wherein floor drain subassembly 21 is connected with water seal subassembly 22 through first regulating part, height realization is adjustable.

It should be noted that, when the floor drain is used in a pre-buried manner, the height of the first adjusting part 23 needs to be preset to be larger, that is, the number of the first adjusting rings which need to be connected in a superposed manner needs to be large, so that the first adjusting part 23 is not covered when pouring is ensured, redundant first adjusting rings are removed after pouring is completed, and then the floor drain assembly 21 is installed.

In one embodiment, as shown in fig. 3, the structure of the water seal assembly 22 is further optimized, specifically, the water seal assembly 22 includes a water seal pipe 229 and a water seal core 228 detachably disposed in the water seal pipe 229, the water seal core 228 is detachably disposed to facilitate the detachment and maintenance of the water seal core 228, and the top end of the water seal pipe 229 is connected and communicated with the top end of the first adjusting member 23;

the water seal core 228 divides the inner cavity of the water seal pipe 229 into a water inlet cavity 223, a water seal cavity 224 and a drainage cavity 226, and wastewater is guided into the water seal cavity 224 through the water inlet cavity 223 to supplement the water amount of the water seal so as to prevent the water seal from drying up;

the upper portion of the water seal pipe 229 is provided with a water outlet 227 and a water inlet 222 which are oppositely arranged, the bottom end of the water inlet 222 is higher than the bottom end of the water outlet 227, so that water can be drained conveniently, one side close to the water outlet 227 is further provided with a backflow preventing plate, waste water in the first flat pipe 4 is prevented from flowing back to the water seal assembly 22, meanwhile, the backflow preventing plate is arranged into an arc shape with the top end inclined towards the water outlet 227, so that water is discharged more smoothly, and blockage is not easy to cause, the water outlet 227 is connected and communicated with one end of the first flat pipe 4, and the water inlet 222 is connected with one end of the second flat pipe 5.

Further, in order to expand the application range, two opposite reserved openings are formed in the upper portion of the water seal pipe 229, the axes of the two reserved openings coincide and are perpendicular to the axis of the water outlet 227, the reserved openings can be used for draining water in places such as a kitchen, a washing machine and a wash basin, the second flat pipe 5 can be inclined towards one side of the concentrated water seal floor drain assembly 2, the pipeline connected with the reserved openings can also be arranged in such a way, the water draining effect can be improved, and the concentrated water seal effect is better.

Further, in order to promote the effect of walking about, set up water seal 228 and include the first water seal wall of laminating with the intake antrum 223 inner wall and the second water seal wall of separating intake antrum 223 and drainage cavity 226, the bottom of second water seal wall is close to water inlet 222, the top of second water seal wall is close to outlet 227 and is connected with the roof of outlet 227, set up to the slope form and can reduce the resistance that waste water received, increase mobility, can discharge along the water seal wall better, reduce the possibility of seepage.

Further, in order to facilitate installation of the water seal core 228 and the floor drain assembly 21, the bottom of the water seal pipe 229 is provided with a positioning column 225 for limiting the bottom end of the water seal core 228, a limiting column 221 is arranged in the water seal pipe 229 and close to the water inlet 222, when the water seal core 228 is inserted, the positioning column 225 limits the bottom end of the water seal core 228 to ensure stable installation, and the limiting column is used for limiting the floor drain assembly 21 connected above and is suitable for being used when the floor drain installation height is low, namely when the height of the first adjusting part 23 is low.

In one embodiment, as shown in fig. 2, the structure of the floor drain assembly 21 is optimized, specifically, the floor drain assembly 21 includes a support member 212, a floor drain cover 211 covering the top of the support member 212, and a tricuspid valve check valve 213 detachably disposed in the support member 212, the support member 212 is connected to the top end of the first adjusting member 23 and covers the top end opening thereof, the center of gravity of each tricuspid valve check valve 213 is far away from the vertical axis position of the floor drain, when no waste water passes through, the tricuspid valve check valve 213 covers the opening of the floor drain due to gravity, when waste water is generated, the tricuspid valve check valve 213 is pushed open, waste water can pass through, the check effect of the floor drain assembly 21 cooperates with the water seal of the water seal assembly 22, and the occurrence of the odor return phenomenon is further prevented under the dual action.

In one embodiment, the structure of the no-water-seal floor drain assembly 3 is optimized as shown in fig. 4 and 5, specifically, the no-water-seal floor drain assembly 3 includes a mounting member 33 with a double-layer step concave middle part, a cover body 31 detachably disposed on the upper step of the mounting member 33, a filter plate 32 detachably disposed on the lower step of the mounting member 33, a second adjusting member 35 connecting the mounting member 33 and the second flat pipe 5, and an adjusting valve 34 disposed in the second adjusting member 35, the second adjusting member 35 includes a plurality of second adjusting rings with overlapped and overlapped axes, the inward-contracted double-layer step holes ensure the quick mounting of the cover body 31 and the filter plate 32, and has a converging effect on water flow, the double-layer filtering of the cover body 31 and the filter plate 32 avoids most of impurities with larger volume from entering the floor drain, the second adjusting piece 35, which has the same function as the first adjusting piece 23, can also ensure that the installation height of the water-free sealing leakage component 3 in the dry area can be adjusted when the component is embedded and used.

Further, because use in dry district, the rivers of unable assurance water seal are sufficient, need consider to carry out the closure means outside the water seal to it and guarantee not returning smelly, harmless worm climbs out, particularly, governing valve 34 includes sleeve 341, set up spliced pole 342 in sleeve 341, the bottom of governing valve 34 sets up can cover governing valve 34 bottom open-ended separation blade, the separation blade passes through the spring and is connected with spliced pole 342, the separation blade of governing valve 34 bottom connection is when anhydrous when passing through, thereby drawn up by the spring and cover the opening of governing valve 34 bottom, when having water to pass through, the spring is stretched, the opening is opened, the spring is replied after the completion of walking water, the separation blade continues to cover the opening, can realize the anhydrous of dry district and seals.

In an embodiment, as shown in fig. 6, a drainage vertical pipe structure for mainly draining water is optimized to improve the water drainage performance, specifically, the top of the drainage vertical pipe 11 is connected to the first water inlet pipe 111, a water inlet is formed in a side wall of the first water inlet pipe 111, the water inlet is connected to and communicated with the second water inlet pipe 112, axes of the first water inlet pipe 111 and the second water inlet pipe 112 are arranged at a certain included angle, a joint of the first water inlet pipe 111 and the second water inlet pipe 112 is a pipe wall cavity with a large volume, and inner edges of the pipe wall cavity are respectively tangent to inner edges of the first water inlet pipe 111 and the second water inlet pipe 112, so that wastewater can enter along a pipe wall in a swirling manner, the curvature radius of the swirling wastewater is increased, noise during discharge is reduced, when the water discharge amount is large, water plug can be effectively prevented from being formed, and the drainage efficiency of the pipe is improved.

Further, the junction of first inlet tube 111 and second inlet tube 112 still is provided with baffle 115, can make the sewage in the second inlet tube 112 get into first inlet tube 111 according to the direction of setting for through setting up baffle 115, block that the sewage in first inlet tube 111 is in reverse getting into second inlet tube 112, when avoiding upper drainage pipe sewage whirl to get into first inlet tube 111, or when sewage got into first inlet tube 111 from second inlet tube 112 whirl, sewage can be followed the juncture of first inlet tube 111 and second inlet tube 112 and washed out second inlet tube 112, cause the sewage convection current, form the water plug.

Further, for the construction scheme of the pre-buried type of cooperation, increase drainage riser 11's stability, can set up round annular reinforcing disc 113 on drainage riser 11's pipe shaft for the area of contact of increase and buried layer promotes drainage riser 11's stability, and reinforcing disc 113 can also play the effect of collecting the dirty waste water of a certain amount of leakage in addition. The bottom of the reinforcing plate 113 can be further provided with supporting legs 114, the supporting legs 114 can play the same role as the reinforcing plate 113 during pre-embedding treatment, and can also play a role in connection and fixation when the pre-embedding treatment is not performed, and the vertical drainage pipe 11 can be quickly and effectively fixed in place through the matching fixation of the supporting legs 114 and connecting pieces.

Furthermore, a reserved water outlet 116 can be arranged on the pipe body of the vertical drainage pipe 11 and below the second water inlet pipe 112, if water seepage occurs in the floor layer, a part of pouring layer can be excavated, and the reserved water outlet 116 is drilled through, so that the seepage water can be removed.

In one embodiment, the water pipe is provided with a fire-proof capability, the lower part of the water seal assembly 22 is the place most easily causing fire spreading when a fire occurs, specifically, the lower part of the water seal assembly 22 is provided with a cake-shaped fire-proof base 6, and in order to facilitate the installation of the fire-proof base 6, the outer side of the bottom of the water seal assembly is provided with a plurality of fixing pieces 61, the plurality of fixing pieces 61 are distributed in an annular array around the axis of the fire-proof base 6, the fire-proof base 6 can be quickly fixed by matching the fixing pieces 61 with iron nails, expansion screws and the like, the fire retardant is arranged in the fire-proof base 6, the fire retardant comprises but is not limited to organic phosphorus-containing expansion type fire retardants which generate little smoke and are not easy to generate toxic gas and corrosive gas, inorganic expansion type graphite fire retardants which generate compact physical isolation layers, and the fire retardant is heated to quickly expand and quickly block the water seal assembly 22 pre-buried in a floor slab when a fire occurs, preventing the fire from spreading.

It should be noted that, in the embodiment of the present application, except that a specific connection relationship is defined, such as detachable connection, the other connection relationships are not limited, and according to a specific construction condition, for example, a threaded connection is preferably adopted between the floor drain assembly 21 and the first adjusting member 23 for facilitating adjustment and installation; the water seal wall in the water seal core 228 is preferably integrally connected to maintain good fluidity of water flow.

Finally, it should be noted that: the embodiments of the present application are disclosed only as the preferred embodiments of the present application, which are intended to illustrate the technical solutions of the present application and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. The utility model provides a two riser of pre-buried type are with layer drain pipe fitting system which characterized in that includes:

the vertical pipe assembly (1) comprises an expansion joint (12), a drainage vertical pipe (11) and an exhaust pipe (13), wherein the expansion joint (12) is sleeved with a water inlet of the drainage vertical pipe (11), and any position of a pipe body of the exhaust pipe (13) is connected and communicated with the pipe body of the drainage vertical pipe (11) through a branch pipe;

the centralized water seal floor drain assembly (2) comprises a floor drain assembly (21) and a water seal assembly (22) from top to bottom, the floor drain assembly (21) is connected with the water seal assembly (22) through a first adjusting piece (23), and the first adjusting piece (23) comprises a plurality of first adjusting rings which are overlapped in axis and connected in a superposed manner;

a water-free leaktight assembly (3);

one end of the first flat pipe (4) is connected and communicated with the pipe body of the vertical drainage pipe (11), and the other end of the first flat pipe (4) is connected and communicated with the outer wall of the water seal assembly (22);

one end of the second flat pipe (5) is connected and communicated with the outer wall of the water seal component (22), and the other end of the second flat pipe (5) is connected and communicated with the water-free seal leakage component (3).

2. The embedded double-riser same-layer drainage pipe fitting system as claimed in claim 1, wherein the water seal assembly (22) comprises a water seal pipe (229) and a water seal core (228) detachably arranged in the water seal pipe (229), and the top end of the water seal pipe (229) is connected and communicated with the top end of the first adjusting member (23);

the water seal core (228) divides the inner cavity of the water seal pipe (229) into a water inlet cavity (223), a water seal cavity (224) and a water drainage cavity (226);

the upper portion of the water seal pipe (229) is provided with a water outlet (227) and a water inlet (222) which are oppositely arranged, the bottom end of the water inlet (222) is higher than the bottom end of the water outlet (227), the water outlet (227) is connected with and communicated with one end of the first flat pipe (4), and the water inlet (222) is connected with one end of the second flat pipe (5).

3. The embedded double-riser same-layer drainage pipe fitting system as claimed in claim 2, wherein the water sealing core (228) comprises a first water sealing wall attached to the inner wall of the water inlet cavity (223) and a second water sealing wall separating the water inlet cavity (223) from the drainage cavity (226), the bottom end of the second water sealing wall is close to the water inlet (222), and the top end of the second water sealing wall is close to the drainage outlet (227) and connected with the top wall of the drainage outlet (227).

4. The embedded double-riser same-layer drainage pipe fitting system according to claim 2, wherein a positioning column (225) is arranged at the bottom of the water sealing pipe (229) and used for limiting the bottom end of the water sealing core (228), and a limiting column (221) is arranged in the water sealing pipe (229) and close to the water inlet (222).

5. The embedded double-riser same-layer drainage pipe fitting system as claimed in claim 2, wherein two reserved openings are formed in the upper portion of the water seal pipe (229) and are oppositely arranged, and the axes of the two reserved openings are overlapped and perpendicular to the axis of the drainage port (227).

6. A pre-buried dual riser same floor drain pipe system according to claim 1, wherein the floor drain assembly (21) comprises a support (212), a floor drain cover (211) covering the top of the support (212), and a tricuspid check valve (213) detachably disposed in the support (212), wherein the support (212) is connected to the top end of the first adjusting member (23) and covers the top end opening thereof.

7. The embedded double-riser same-layer drainage pipe fitting system according to claim 1, wherein the non-water-seal floor drain assembly (3) comprises a mounting part (33) with a double-layer step concave middle part, a cover body (31) detachably arranged on an upper step of the mounting part (33), an upper filter plate (32) detachably arranged on a lower step of the mounting part (33), a second adjusting part (35) connecting the mounting part (33) and the second flat pipe (5), and an adjusting valve (34) arranged in the second adjusting part (35), wherein the second adjusting part (35) comprises a plurality of second adjusting rings with overlapped and overlapped axes;

the regulating valve (34) comprises a sleeve (341) and a connecting column (342) arranged in the sleeve (341), a blocking piece capable of covering the bottom opening of the regulating valve (34) is arranged at the bottom end of the regulating valve (34), and the blocking piece is connected with the connecting column (342) through a spring.

8. The embedded double-riser same-layer drainage pipe fitting system according to claim 1, wherein the top of the drainage riser (11) is connected with a first water inlet pipe (111), a water inlet is formed in the side wall of the first water inlet pipe (111), the water inlet is connected with and communicated with a second water inlet pipe (112), the axes of the first water inlet pipe (111) and the second water inlet pipe (112) are arranged at a certain included angle, the joint of the first water inlet pipe (111) and the second water inlet pipe (112) is a pipe wall cavity with an expanded volume, and the inner edges of the pipe wall cavity are tangent to the inner edges of the first water inlet pipe (111) and the second water inlet pipe (112) respectively.

9. The embedded double-riser same-layer drainage pipe fitting system according to any one of claims 1-8, wherein a cake-shaped fireproof base (6) is arranged below the water seal assembly (22), and a fire retardant is arranged in the fireproof base (6).

10. The embedded double-riser same-layer drainage pipe fitting system as claimed in claim 9, wherein a plurality of fixing pieces (61) are arranged on the outer side of the bottom of the fireproof base (6).

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