CN115637765A - Assembled double-drainage floor drain suitable for overhead ground - Google Patents

Abstract

The invention discloses an assembled double-drainage floor drain suitable for an overhead ground, which comprises a floor drain sleeve, wherein the floor drain sleeve comprises a large-diameter section and a small-diameter section; a sealing ring is sleeved outside the small-diameter section, and the outer surface of the sealing ring protrudes out of the outer surface of the large-diameter section; the large-diameter section is provided with a plurality of water outlets. The double-drainage floor drain solves the practical problem that the floor drain cannot be arranged on the fabricated overhead ground; the rubber ring prevents water flow from flowing from the sewer pipe to the original ground. The floor drain sleeve is provided with a circle of secondary drainage ports which are used for draining accumulated water on the ground of the original ground structure. Simultaneously the round interval links to each other between cover intraductal wall and the outer wall, fully leaves the space of launching, and the department of linking to each other designs for inside oblique angle for even there is anti-water, water also can only gather together between the inside and outside wall and whereabouts once more, can not palirrhea and original structure ground. Is worthy of large-area popularization and application.

Description

An Assembled Double Drainage Floor Drain Suitable for Raised Ground

technical field

The invention relates to the technical field of architectural decoration, in particular to an assembled double drainage floor drain suitable for raised ground.

Background technique

The prefabricated decoration is completely processed in the factory, and only needs to be quickly installed on site, which is conducive to saving energy resources, reducing construction pollution, improving labor production efficiency and quality and safety levels, and is the future trend of heavy industry transformation. The prefabricated decoration is as ingeniously designed and beautifully shaped as the ancient wooden structure buildings in our country.

The prefabricated raised ground system can realize dry construction, full mesh structure, plug-in installation process, common tiles and floors of various specifications, simple operation, fast construction speed, single operation can install 50-70㎡ per day, a lot of savings Construction period and labor costs. The height of the module from the ground can be adjusted freely, and the ground of the rough house can be directly constructed, and the level can be easily achieved without pre-leveling. The installation technique is easy to learn and has strong consistency.

Although the fabricated raised ground or similar fabricated ground structures have many advantages, due to the structural limitations of the traditional floor drain, the traditional floor drain cannot be used in the fabricated raised ground system. The main reason is that the traditional floor drain usually has a fixed height, while the prefabricated raised ground usually has different heights according to the site construction adjustment and requirements, making it difficult to perfectly combine the traditional floor drain with the prefabricated raised ground structure. In addition, due to the lack of waterproof facilities on the outside of the traditional floor drain, after the traditional floor drain is installed in combination with the fabricated overhead ground structure, there will be a problem of water flowing from the downpipe to the ground. At the same time, because the traditional floor drain lacks the design of the secondary drainage structure, the accumulated water on the original ground cannot be discharged to the downpipe.

Therefore, how to provide a floor drain structure suitable for use on prefabricated raised floors is a technical problem that urgently needs to be solved by those skilled in the art.

Contents of the invention

The invention provides an assembled double drainage floor drain suitable for the elevated ground.

The present invention provides following scheme:

An assembled double drainage floor drain suitable for raised ground, comprising:

A floor drain casing, the floor drain casing includes a large-diameter section and a small-diameter section; a sealing ring is sheathed on the outside of the small-diameter section, and the outer surface of the sealing ring protrudes from the outer surface of the large-diameter section; The large-diameter section is provided with several water outlets, and the inner side of the water outlet is provided with a blocking part, and the blocking part is connected with the inner side wall of the large-diameter section; an inclined section and a vertical section connected to the inclined section, the lower end of the vertical section extends below the lower edge of the drain;

A floor drain flange, the floor drain flange includes a first tubular portion and a folded portion;

Wherein, the small-diameter section is plugged into the downpipe through a through hole on the base assembly of the assembled floor, and the diameter of the outer surface of the sealing ring is larger than the inner diameter of the downpipe, so that the sealing ring will cover the downpipe. The gap between the inner side of the water pipe and the outer side of the small-diameter section is filled; the end surface of the large-diameter section does not protrude from the upper surface of the base plate of the base assembly, and the first tubular part extends through the upper end of the large-diameter section to The inside of the large-diameter section and the lower surface of the folded portion are lowered to the upper surface of the base plate; the lower edge of the drain is not higher than the original ground.

Preferably: it also includes a floor drain cover assembly and an odor-proof floor drain core, the floor drain cover assembly includes a floor drain panel provided with a grate and a second tubular part connected to the floor drain panel; the second tubular part is used for inserting into the The inside of the first tubular part, so that the lower surface of the floor drain panel is lowered to the upper surface of the folded part; the deodorant floor drain core is arranged inside the small-diameter section.

Preferably: the small-diameter section is provided with a number of inwardly protruding buckle protrusions, and the deodorant floor drain core is provided with a number of buckle recesses; The number and indirection of the positions are the same; the buckle convex position can pass through the buckle concave position.

Preferably: a shoulder structure is formed at the connection between the large diameter section and the small diameter section, and the shoulder structure is used to limit the position of the sealing ring sleeved on the outside of the small diameter section; the sealing ring It is a waterproof rubber ring.

Preferably: the base unit includes a balance board, a waterproof membrane, an adhesive layer and a decorative panel sequentially located on the upper side of the base board; the lower surface of the folded portion is lowered to the upper surface of the waterproof membrane, so The adhesive layer extends to between the upper surface of the folded portion and the floor drain panel.

Preferably: the upper surface of the floor drain panel is flush with the upper surface of the decorative panel.

Preferably: the waterproof membrane is a PE waterproof membrane.

Preferably: the base unit is connected to the original ground through several leveling bolts, and the upper part of the original ground is provided with a polymer cement waterproof coating layer.

Preferably: it also includes a height adjustment sleeve, the inner side of the height adjustment sleeve is provided with several gear teeth; the upper end of the large diameter section is provided with a rubber head; the floor drain sleeve is inserted into the height adjustment sleeve and the rubber head extends to the inside of one of the gear teeth, so that the floor drain sleeve is snap-connected with the height adjustment sleeve.

Preferably: the rubber head is a composite waterproof rubber head.

According to the specific embodiments provided by the invention, the invention discloses the following technical effects:

Through the present invention, an assembled double drainage floor drain suitable for overhead ground can be realized. In one implementation mode, the floor drain can include a floor drain casing, and the floor drain casing includes a large-diameter section and a small-diameter section; A sealing ring is set on the outside of the small-diameter section, and the outer surface of the sealing ring protrudes from the outer surface of the large-diameter section; the large-diameter section is provided with a number of water outlets, and the inner side of the water outlet is provided with a blocking part, The blocking portion is connected to the inner side wall of the large-diameter section; the blocking portion includes an inclined section inclined toward the inside of the large-diameter section and a vertical section connected to the inclined section, and the vertical section The lower end extends below the lower edge of the water outlet; the floor drain flange, the floor drain flange includes a first tubular portion and a folded portion; wherein, the small-diameter section is inserted through the through hole on the base assembly of the assembled floor Connected in the downpipe, the diameter of the outer surface of the sealing ring is greater than the inner diameter of the downpipe, so that the sealing ring fills the gap between the inside of the downpipe and the outside of the small-diameter section; the large The end surface of the diameter section does not protrude from the upper surface of the base plate of the base assembly, the first tubular part extends to the inside of the large diameter section through the upper end of the large diameter section, and the lower surface of the folded part is in line with the The upper surface of the base plate is lowered; the lower edge of the water outlet is not higher than the original ground. The prefabricated double-drainage floor drain suitable for the raised ground provided by this application has a simple and reasonable structure, and is easy to install and use, which solves the practical problem that the prefabricated raised ground cannot be equipped with a floor drain; the rubber ring prevents the water from flooding from the downpipe to the original ground disadvantages. The length of the floor drain casing can be determined according to the overhead height, and the upper neck of the floor drain can be cut. Or use the combination of height adjustment sleeve and floor drain sleeve, so that the overall length can be determined according to the overhead height without cutting. The universality of the floor drain is improved. In the dry and wet areas, the raised ground can be used to replace the waterproof chassis, which greatly reduces the cost; there is a circle of secondary drains on the floor drain casing, and this circle of drains is used to remove the accumulated water on the ground of the original ground structure. There is a ring of casing inner wall inside the drain outlet to prevent the accumulated water from returning upwards, and it can only flow downward into the sewer pipe; at the same time, the inner wall of the casing and the outer wall are connected by a circle of intervals to fully leave the space for the water, and the connection is designed to flow downwards. The inner bevel makes it so that even if there is backwater, the water will only gather between the inner and outer walls and fall again, and will not flow back to the original structure ground. It is worth promoting and using on a large scale.

Of course, implementing any product of the present invention does not necessarily need to achieve all the advantages described above at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a structural schematic diagram of an assembled double drainage floor drain suitable for raised ground provided by an embodiment of the present invention;

Fig. 2 is a schematic structural view of a floor drain bushing provided by an embodiment of the present invention;

Fig. 3 is a sectional view of the A-A plane provided by the embodiment of the present invention;

Fig. 4 is a cross-sectional view of a small-diameter section provided by an embodiment of the present invention;

Fig. 5 is a sectional view of the deodorant floor drain core provided by the embodiment of the present invention;

Fig. 6 is a schematic diagram of the process of inserting the deodorant floor drain core into the small diameter section provided by the embodiment of the present invention;

Fig. 7 is a schematic diagram of the anti-odor floor drain core provided by the embodiment of the present invention after rotation;

Fig. 8 is a schematic diagram of the use state of an assembled double-drainage floor drain suitable for elevated ground provided by an embodiment of the present invention;

Fig. 9 is a schematic structural view of the floor drain sleeve provided by the embodiment of the present invention after being connected to the height adjustment sleeve;

Fig. 10 is a schematic diagram of the use state after the floor drain sleeve provided by the embodiment of the present invention is connected to the height adjustment sleeve.

In the figure: floor drain casing 1, large diameter section 11, water outlet 111, small diameter section 12, buckle protrusion 121, blocking part 13, deodorant floor drain core 14, buckle recess 141, sealing ring 2, floor drain flange 3. The first tubular part 31, the folded part 32, the floor drain cover assembly 4, the floor drain panel 41, the second tubular part 42, the base assembly 5, the base board 51, the balance board 52, the waterproof diaphragm 53, the adhesive layer 54, the decoration Panel 55, downpipe 6, leveling bolt 7, height adjustment sleeve 8, gear teeth 81, rubber head 82, original ground 9, polymer cement waterproof coating layer 91.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

Example

Referring to Fig. 1, Fig. 2 and Fig. 3, the embodiment of the present invention provides an assembled double drainage floor drain suitable for overhead ground. As shown in Fig. 1, Fig. 2 and Fig. 3, the floor drain may include:

The floor drain casing 1, the floor drain casing 1 includes a large diameter section 11 and a small diameter section 12; the outside of the small diameter section 11 is covered with a sealing ring 2, and the outer surface of the sealing ring 2 protrudes from the large diameter The outer surface of the section 11; the large-diameter section 11 is provided with several water outlets 111, and the inner side of the water outlet 11 is provided with a blocking portion 13, and the blocking portion 13 is connected to the inner side wall of the large-diameter section 11; The blocking portion 13 includes an inclined section inclined towards the inner side of the large diameter section and a vertical section connected to the inclined section, the lower end of the vertical section extends below the lower edge of the water outlet 111 ;

A floor drain flange 3, the floor drain flange 3 includes a first tubular portion 31 and a folded portion 32;

Wherein, the small-diameter section 12 is inserted into the downpipe 6 through the through hole on the base assembly 5 of the assembled floor, and the diameter of the outer surface of the sealing ring 2 is larger than the inner diameter of the downpipe 6, so that the The sealing ring 2 fills the gap between the inside of the downpipe 6 and the outside of the small diameter section 12; the end surface of the large diameter section 11 does not protrude from the upper surface of the base plate 51 of the base assembly 5, and the first The tubular part 31 extends to the inside of the large diameter section 11 through the upper end of the large diameter section 11 and the lower surface of the folded part 32 is lowered to the upper surface of the base plate 51; The lower edge is not higher than the original ground 9.

The prefabricated double-drainage floor drain suitable for overhead ground provided by the embodiment of the present application can adjust the length of the floor drain sleeve according to the height of the prefabricated ground, so that after the small diameter section is inserted into the downpipe, the upper end surface of the large diameter section and the base plate It is flush or located below the base plate, which is convenient for the subsequent installation of related floor drain accessories. The contact part between the small diameter section and the downpipe adopts a sealing ring as a positioning seal. The sealing ring can assist the positioning of the floor drain casing, and at the same time can also play a good sealing effect to prevent water from flooding from the downpipe. The floor drain flange can seal the gap between the floor drain sleeve and the base unit to prevent ground water from entering below the ground unit. The floor drain can be adapted to a variety of different types and specifications of prefabricated floors, effectively solving the problem that traditional prefabricated elevated floors cannot be installed with floor drains. A circle of secondary drainage outlets is arranged on the casing pipe of the double drainage floor drain, and this circle of drainage outlets is used to remove accumulated water on the ground of the original structure. There is a ring of casing inner wall inside the drain outlet to prevent the accumulated water from returning upwards, and it can only flow downward into the sewer pipe; at the same time, the inner wall of the casing and the outer wall are connected by a circle of intervals to fully leave the space for the water, and the connection is designed to flow downwards. The inner bevel makes it so that even if there is backwater, the water will only gather between the inner and outer walls and fall again, and will not flow back to the original structure ground.

Also includes floor drain cover assembly 4 and deodorant floor drain core 14, said floor drain cover assembly 4 includes a floor drain panel 41 provided with a grate and a second tubular portion 42 connected to said floor drain panel 41; said second tubular portion 42 is used for Inserted into the inside of the first tubular part 31, so that the lower surface of the floor drain panel 41 is lowered to the upper surface of the folded part 32; the deodorant floor drain core 14 is arranged on the small diameter section 12 inside. The floor drain panel can be used to form a floor drain grate and provide a water inlet. The overall installation of the floor drain can be completed after the second tubular part is plugged into the large-diameter section.

In order to further improve the anti-odor performance of the floor drain, the embodiment of the present application may further provide that the second tubular part is provided with an anti-odor floor drain core. The floor drain is an important interface connecting the drainage system and the indoor floor. As an important part of the drainage system in the residence, its performance directly affects the quality of the indoor air, and is very important for the odor control in the bathroom. The use of the anti-odor floor drain core can effectively prevent the problem of off-flavor in the floor drain. The anti-odor floor drain core can adopt any anti-odor structure of the floor drain in the prior art.

In order to facilitate the installation and fixing of the deodorant floor drain core, as shown in Figure 4 and Figure 5, the embodiment of the present application can provide that the small diameter section 12 is provided with several inwardly protruding buckle protrusions 121, and the deodorant floor drain core 14 is provided with a number of buckle recesses 141; the number and spacing of the buckle protrusions 121 are the same as the number and indirection of the buckle recesses 141; the buckle protrusions 121 can pass through the buckle recesses Bit 141. When installing, as shown in Figure 6, align the recess of the buckle with the protrusion of the bayonet and put the deodorant floor drain core upward. As shown in Figure 7, rotate the anti-odor floor drain core so that it rests on the convex position of the bayonet.

It can be understood that the sealing ring provided in the embodiment of the present application can be used as a sealing member, and at the same time, it also assumes the role of positioning the floor drain sleeve and the downpipe. The principle is that after the sealing ring is set outside the small diameter section, its outer diameter is larger than the inner diameter of the sewer pipe. When installing the floor drain sleeve, it is necessary to press down on the floor drain sleeve until it is installed in place. In order to prevent the sealing ring from entering the downpipe when it is subjected to an upward force. The embodiment of the present application may provide a shoulder structure 13 formed at the connection between the large diameter section 11 and the small diameter section 12, and the shoulder structure 13 is used to fit the sealing ring on the outside of the small diameter section 12 2 for limit. The formed shoulder structure can prevent the sealing ring from moving upwards excessively and ensure that it can enter the inside of the downpipe.

The sealing ring provided in the embodiment of the present application may take various forms. For example, in an implementation manner, the sealing ring provided in the embodiment of the present application may be a waterproof rubber ring. The rubber ring has the advantages of low price, easy access, convenient use and long life.

As a part of the prefabricated raised ground, the base unit provided in the embodiment of the present application needs to ensure that it has good waterproof performance when it is used in scenarios such as toilets. For this reason, as shown in FIG. 8, the embodiment of the present application can provide that the base unit 5 includes a balance plate 52, a waterproof membrane 53, an adhesive layer 54, and a decorative panel 55 that are sequentially located on the top of the base board 51; The lower surface of the folded portion 32 is lowered to the upper surface of the waterproof membrane 53 , and the adhesive layer 54 extends between the upper surface of the folded portion 32 and the floor drain panel 31 . After the adhesive layer is cured, the gaps existing in the folded parts can be blocked to achieve a further waterproof effect.

In order to improve the aesthetics of the floor drain after installation, the embodiment of the present application may provide that the upper surface of the floor drain panel is flush with the upper surface of the decorative panel. Specifically, the waterproof membrane is a PE waterproof membrane. The base unit 5 is connected to the ground through several leveling bolts 7 . In practical application, the base board can be 15mm thick, the balance board can be 9mm thick, the PE waterproof membrane can be 0.75mm thick, and the decorative panel can be 9mm thick tiles. The base unit can be leveled and installed with several leveling bolts, and the upper part of the original ground is provided with a polymer cement (JS) waterproof coating layer.

When the floor drain provided by the embodiment of the present application is actually used, the fixed buckle rubber ring is first placed on the small diameter section of the lower half of the double drainage floor drain sleeve, and then the floor drain sleeve is inserted from the opening of the floor leak reserved for the base plate of the elevated ground. Put it down, pay attention to insert the floor drain sleeve into the downpipe reserved in the original structure with a little force during installation, the fixed buckle rubber ring on the floor drain sleeve and the inner wall of the downpipe will naturally form a pressure, so that the drainage sleeve is connected to the downpipe Form a closed inner cavity to prevent the water flow from leaking to the original ground. Note that the upper edge of the double drainage floor drain casing should be as flat as possible with the elevated sub-slab or slightly lower than the elevated sub-slab. Then, do waterproofing on the raised ground sub-slab according to actual needs. After waterproofing, apply SM glue on the outside of the waterproof floor drain flange, and buckle the waterproof floor drain flange into the upper hole of the double drainage floor drain casing, and compact it. Fix the floor drain casing and the raised ground as a whole. After that, you can continue to lay the floor finish and floor drain cover.

In order to facilitate the adjustment of the length of the floor drain sleeve according to the actual use, as shown in Figure 9 and Figure 10, the embodiment of the present application can provide a height adjustment sleeve 8, and the inner side of the height adjustment sleeve 8 is provided with several gear teeth 81; The upper end of the large-diameter section is provided with a rubber head 82; the floor drain sleeve 1 is inserted into the inside of the height adjustment sleeve 8 and the rubber head 82 extends to the inside of one of the teeth 81, so that The floor drain sleeve 1 is snap-connected with the height adjustment sleeve 8 .

The provided floor drain sleeve and the height adjustment sleeve are connected by buckles. In actual use, no cutting is required. The overall length of the floor drain sleeve and the height adjustment sleeve can be realized through the position of the buckle connection, so that the small diameter After the section is inserted into the downpipe, the upper end surface of the large-diameter section is flush with the base plate or below the base plate to facilitate the subsequent installation of related floor drain accessories.

When the floor drain sleeve provided in the embodiment of the present application is used in conjunction with the height adjustment sleeve, the height adjustment sleeve and the floor drain sleeve are first installed in combination, and the connection position is determined according to the required length. Then put the fixed buckle rubber ring on the small-diameter section of the lower half of the floor drain casing, and then hold the height adjustment sleeve to place the floor drain casing downward from the hole reserved for the floor slab on the elevated ground. Pay attention to the installation of the floor drain The bushing is slightly inserted into the drain pipe reserved in the original structure, and the fixed buckle rubber ring on the floor drain bushing will naturally form a pressure with the inner wall of the drain pipe, so that the drainage bushing and the drain pipe are connected to form a closed inner cavity to prevent water flow The upper pan leaks to the original ground. Note that the upper edge of the double drainage floor drain casing is as flat as possible with the elevated sub-slab or slightly lower than the elevated sub-slab. Then, do waterproofing on the raised ground sub-slab according to actual needs. After waterproofing, apply SM glue on the outside of the waterproof floor drain flange, and buckle the waterproof floor drain flange into the upper hole of the double drainage floor drain casing, and compact it. Fix the floor drain casing and the raised ground as a whole. After that, you can continue to lay the floor finish and floor drain cover.

In a word, the prefabricated double drainage floor drain suitable for the raised ground provided by this application has a simple and reasonable structure, and is easy to install and use, which solves the practical problem that the prefabricated raised ground cannot be installed with a floor drain; the rubber ring prevents the water from flooding from the downpipe to the original The downside of the ground. The length of the floor drain casing can be determined according to the overhead height, and the upper neck of the floor drain can be cut. Or use the combination of height adjustment sleeve and floor drain sleeve, so that the overall length can be determined according to the overhead height without cutting. The universality of the floor drain is improved. In the dry and wet areas, the raised ground can be used to replace the waterproof chassis, which greatly reduces the cost; there is a circle of secondary drains on the floor drain casing, and this circle of drains is used to remove the accumulated water on the ground of the original ground structure. There is a ring of casing inner wall inside the drain outlet to prevent the accumulated water from returning upwards, and can only flow downward into the sewer pipe; at the same time, the inner wall of the casing and the outer wall are connected by a circle of intervals to fully leave space for the water, and the connection is designed to flow downwards. The inner bevel makes it so that even if there is backwater, the water will only gather between the inner and outer walls and fall again, and will not flow back to the original structure ground. It is worth promoting and using on a large scale.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a double water floor drain of assembled suitable for built on stilts ground which characterized in that includes:

the floor drain casing comprises a large-diameter section and a small-diameter section; a sealing ring is sleeved outside the small-diameter section, and the outer surface of the sealing ring protrudes out of the outer surface of the large-diameter section; the large-diameter section is provided with a plurality of drainage ports, the inner side of each drainage port is provided with a blocking part, and the blocking part is connected with the inner side wall of the large-diameter section; the blocking part comprises an inclined section inclined towards the inner side of the large-diameter section and a vertical section connected with the inclined section, and the lower end of the vertical section extends to the position below the lower edge of the lower water gap;

the floor drain flange comprises a first tubular part and a turnover part;

the small-diameter section is inserted into a sewer pipe through a through hole in a base layer assembly of the fabricated ground, and the diameter of the outer surface of the sealing ring is larger than the inner diameter of the sewer pipe, so that a gap between the inner side of the sewer pipe and the outer side of the small-diameter section is filled by the sealing ring; the end face of the large-diameter section does not protrude out of the upper surface of a base plate of the base layer assembly, the first tubular part extends to the inside of the large-diameter section through the upper end of the large-diameter section, and the lower surface of the turnover part is connected with the upper surface of the base plate in a low mode; the lower edge of the lower water gap is not higher than the original ground.

2. The assembled double-drainage floor drain suitable for the overhead ground of claim 1, further comprising a floor drain cover assembly and a deodorizing floor drain core, wherein the floor drain cover assembly comprises a floor drain panel provided with a grate and a second tubular part connected with the floor drain panel; the second tubular part is used for being inserted into the first tubular part so that the lower surface of the floor drain panel is connected with the upper surface of the turnover part in a low mode; the odor-resistant floor drain core is arranged on the inner side of the small-diameter section.

3. The fabricated double-drainage floor drain suitable for the overhead ground of claim 2, wherein the small-diameter section is provided with a plurality of inward-protruding buckle convex positions, and the odor-resistant floor drain core is provided with a plurality of buckle concave positions; the number and the interval of the buckle convex positions are the same as those of the buckle concave positions indirectly; the convex part of the buckle can pass through the concave part of the buckle.

4. The assembled double-drainage floor drain suitable for the overhead ground as claimed in claim 1, wherein a shoulder structure is formed at the joint of the large-diameter section and the small-diameter section, and the shoulder structure is used for limiting the sealing ring sleeved outside the small-diameter section; the sealing ring is a waterproof rubber ring.

5. The fabricated double drain floor drain for elevated ground of claim 1 wherein the base layer assembly comprises a balance board, a waterproofing membrane, an adhesive layer and a decorative panel sequentially positioned on the upper part of the base layer board; the lower surface of the turnover part is connected with the upper surface of the waterproof diaphragm in a low mode, and the bonding layer extends to a position between the upper surface of the turnover part and the floor drain panel.

6. The fabricated double drain floor drain suitable for use on elevated ground of claim 5 wherein the upper surface of the floor drain panel is flush with the upper surface of the decorative panel.

7. The fabricated double drain floor drain suitable for use on an elevated ground of claim 6 wherein the waterproofing membrane is a PE waterproofing membrane.

8. The fabricated double drain floor drain for the raised floor as claimed in claim 1, wherein the base layer assembly is connected to the original floor by a plurality of leveling bolts, and a polymer cement waterproof coating layer is provided on the upper portion of the original floor.

9. The fabricated double drain floor drain suitable for elevated ground as claimed in claim 1, further comprising a height adjusting sleeve, wherein a plurality of gear teeth are arranged inside the height adjusting sleeve; the upper end of the large-diameter section is provided with a rubber head; the floor drain sleeve is inserted into the height adjusting sleeve in a plugging mode, and the rubber head extends into one of the gear teeth, so that the floor drain sleeve is connected with the height adjusting sleeve in a buckling mode.

10. The fabricated double drain floor drain suitable for use on an elevated ground of claim 9 wherein the rubber head is a composite waterproof rubber head.

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