CN219240786U - Assembled double drainage floor drain suitable for overhead ground - Google Patents

Abstract

The utility model discloses an assembled double-drainage floor drain suitable for overhead ground, which comprises a floor drain sleeve, wherein the floor drain sleeve comprises a large-diameter section and a small-diameter section; the outside of the small-diameter section is sleeved with a sealing ring, and the outer side surface of the sealing ring protrudes out of the outer side 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 assembled overhead ground; the rubber ring prevents water flow from the sewer pipe to the original ground. The floor drain sleeve is provided with a circle of secondary water outlet which is used for discharging accumulated water on the ground of the original ground structure. Meanwhile, the inner wall and the outer wall of the sleeve are connected at intervals, a water-draining space is fully reserved, and the connection part is designed to be an inward oblique angle, so that even if water is reflected, the water is only converged between the inner wall and the outer wall and falls down again, and the ground with the original structure cannot be reversed. Is worth popularizing and using in a large area.

Description

Assembled double drainage floor drain suitable for overhead ground

Technical Field

The utility model relates to the technical field of building decoration, in particular to an assembled double-drainage floor drain suitable for overhead ground.

Background

The assembly type decoration completely adopts factory processing, only needs to be quickly installed on site, is beneficial to saving energy resources, reducing construction pollution, improving labor production efficiency and quality safety level, and is a future trend of heavy industry transformation. The assembled decoration is ingenious in design and attractive in appearance like the ancient wood structure building in China.

The assembled overhead ground system can realize dry construction, a full-mesh structure, a plug-in type mounting process, general ceramic tiles and floors with various specifications, and has the advantages of simplicity in operation and high construction speed, and can be mounted by 50-70 square meters per day through single operation, so that the construction period and the labor cost are greatly saved. The height of the module from the ground can be freely adjusted, the blank house ground can be directly constructed, the horizontal can be easily realized, and the earlier leveling is not needed. The installation technology is simple and easy to learn, and the consistency is strong.

While there are many advantages to an assembled overhead floor or similar assembled floor structure, conventional floor drains cannot be used in an assembled overhead floor system due to the structural limitations of conventional floor drains. The main reason is that the traditional floor drain is usually provided with a fixed height, and the assembled overhead ground is usually provided with different heights according to the on-site construction adjustment and requirements, so that the traditional floor drain is difficult to perfectly combine with the assembled overhead ground structure. In addition, due to the fact that waterproof facilities are lack on the outer side of the traditional floor drain, the problem that water flows from a sewer pipe to the ground can occur after the traditional floor drain is combined with an assembled overhead ground structure. Meanwhile, due to the fact that a traditional floor drain lacks of a secondary drainage structure, accumulated water on the original ground cannot be drained to a sewer pipe.

Therefore, how to provide a floor drain structure suitable for the assembled overhead ground is an urgent technical problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model provides an assembled double-drainage floor drain suitable for overhead ground.

The utility model provides the following scheme:

an assembled double drainage floor drain suitable for overhead ground, comprising:

the floor drain sleeve comprises a large-diameter section and a small-diameter section; the outside of the small-diameter section is sleeved with a sealing ring, and the outer side surface of the sealing ring protrudes out of the outer side surface of the large-diameter section; the large-diameter section is provided with a plurality of water discharge ports, the inner side of each water discharge port is provided with a blocking part, and the blocking parts are 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 below the lower edge of the water outlet;

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

the small-diameter section is inserted into the sewer pipe through a through hole on the base layer assembly of the assembled ground, and the diameter of the outer surface of the sealing ring is larger than the inner diameter of the sewer pipe, so that the sealing ring fills a gap between the inner side of the sewer pipe and the outer side of the small-diameter section; the end face of the large-diameter section does not protrude out of the upper surface of the base layer 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 in low connection with the upper surface of the base layer plate; the lower edge of the water outlet is not higher than the original ground.

Preferably: 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 as to enable the lower surface of the floor drain panel to be in low connection with the upper surface of the turnover part; the deodorizing floor drain core is arranged on the inner side of the small-diameter section.

Preferably: the small-diameter section is provided with a plurality of inwards-protruding buckling convex positions, and the deodorizing floor drain core is provided with a plurality of buckling concave positions; the number and the spacing of the buckling convex positions are the same as the number and the indirect of the buckling concave positions; the buckle convex position can penetrate through the buckle concave position.

Preferably: a shoulder structure is formed at the joint of the large-diameter section and the small-diameter section and used for limiting the sealing ring sleeved outside the small-diameter section; the sealing ring is a waterproof rubber ring.

Preferably: the base layer assembly comprises a balance plate, a waterproof membrane, a bonding layer and a decoration panel which are sequentially positioned at the upper part of the base layer plate; the lower surface of the turnover part is connected with the upper surface of the waterproof membrane 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.

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 layer assembly is connected with the original ground through a plurality of leveling bolts, and a polymer cement waterproof coating layer is arranged on the upper portion of the original ground.

Preferably: the device also comprises a height adjusting sleeve, wherein the inner side of the height adjusting sleeve is provided with a plurality of 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 adjusting sleeve, and the rubber head extends to the inside of one of the gear teeth, so that the floor drain sleeve is connected with the height adjusting sleeve through a buckle.

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

According to the specific embodiment provided by the utility model, the utility model discloses the following technical effects:

according to the utility model, an assembled double-drainage floor drain suitable for overhead ground can be realized, and in one implementation mode, the floor drain can comprise a floor drain sleeve, wherein the floor drain sleeve comprises a large-diameter section and a small-diameter section; the outside of the small-diameter section is sleeved with a sealing ring, and the outer side surface of the sealing ring protrudes out of the outer side surface of the large-diameter section; the large-diameter section is provided with a plurality of water discharge ports, the inner side of each water discharge port is provided with a blocking part, and the blocking parts are 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 below the lower edge of the water outlet; the floor drain flange comprises a first tubular part and a turnover part; the small-diameter section is inserted into the sewer pipe through a through hole on the base layer assembly of the assembled ground, and the diameter of the outer surface of the sealing ring is larger than the inner diameter of the sewer pipe, so that the sealing ring fills a gap between the inner side of the sewer pipe and the outer side of the small-diameter section; the end face of the large-diameter section does not protrude out of the upper surface of the base layer 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 in low connection with the upper surface of the base layer plate; the lower edge of the water outlet is not higher than the original ground. The assembled double-drainage floor drain applicable to the overhead ground, provided by the application, has the advantages of simple and reasonable structure and convenience in installation and use, and solves the practical problem that the floor drain cannot be arranged on the assembled overhead ground; the rubber ring prevents water flow from the sewer pipe to the original ground. The length of the floor drain sleeve can be determined according to the height of the overhead, and the upper neck of the floor drain can be cut. Or the combined form of the height adjusting sleeve and the floor drain sleeve is adopted, so that the whole length can be determined according to the height of the overhead without cutting. The universality of the floor drain is improved. The water-proof chassis is replaced by the overhead ground in the dry and wet area, so that the cost is greatly reduced; the floor drain sleeve is provided with a circle of secondary water outlet which is used for draining accumulated water on the ground of the original ground structure. The inner wall of the sleeve pipe is measured in the water outlet to prevent accumulated water from returning upwards and only flowing downwards into the water outlet pipe; meanwhile, the inner wall and the outer wall of the sleeve are connected at intervals, a water-draining space is fully reserved, and the connection part is designed to be an inward oblique angle, so that even if water is reflected, the water is only converged between the inner wall and the outer wall and falls down again, and the ground with the original structure cannot be reversed. Is worth popularizing and using in a large area.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an assembled double drainage floor drain for overhead ground according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a floor drain sleeve according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of the A-A side provided by an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a small diameter section provided by an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a deodorizing floor drain core provided by an embodiment of the utility model;

FIG. 6 is a schematic diagram of a process of inserting a deodorizing floor drain core into a small diameter section provided by an embodiment of the utility model;

FIG. 7 is a schematic diagram of a deodorizing floor drain core provided by an embodiment of the utility model after rotation;

FIG. 8 is a schematic diagram of an assembled double-drainage floor drain applicable to overhead ground according to an embodiment of the present utility model;

FIG. 9 is a schematic view of the floor drain bushing according to the embodiment of the present utility model after being connected to a height adjustment bushing;

fig. 10 is a schematic view of a floor drain sleeve according to an embodiment of the present utility model in use after being connected to a height adjustment sleeve.

In the figure: floor drain sleeve 1, large diameter section 11, drain 111, small diameter section 12, snap-fit boss 121, blocking portion 13, odor-resistant floor drain core 14, snap-fit boss 141, sealing ring 2, floor drain flange 3, first tubular portion 31, turnover portion 32, floor drain cover assembly 4, floor drain panel 41, second tubular portion 42, base layer assembly 5, base layer plate 51, balance plate 52, waterproofing membrane 53, bonding layer 54, decorative panel 55, downcomer 6, leveling bolts 7, height adjustment sleeve 8, gear teeth 81, rubber head 82, original floor 9, polymer cement waterproof coating layer 91.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

Examples

Referring to fig. 1, fig. 2, and fig. 3, an assembled double-drainage floor drain applicable to overhead ground according to an embodiment of the present utility model, as shown in fig. 1, fig. 2, and fig. 3, the floor drain may include:

a floor drain sleeve 1, the floor drain sleeve 1 comprising a large diameter section 11 and a small diameter section 12; the outside of the small-diameter section 11 is sleeved with a sealing ring 2, and the outer side surface of the sealing ring 2 protrudes out of the outer side surface of the large-diameter section 11; the large-diameter section 11 is provided with a plurality of water discharge ports 111, the inner side of the water discharge port 11 is provided with a blocking part 13, and the blocking part 13 is connected with the inner side wall of the large-diameter section 11; the blocking part 13 includes an inclined section inclined toward the inside of the large diameter section and a vertical section connected to the inclined section, the lower end of the vertical section extending below the lower edge of the water discharge port 111;

a floor drain flange 3, the floor drain flange 3 comprising a first tubular portion 31 and a turnover portion 32;

the small-diameter section 12 is inserted into the sewer pipe 6 through a through hole on the base layer assembly 5 of the assembled ground, and the diameter of the outer surface of the sealing ring 2 is larger than the inner diameter of the sewer pipe 6, so that the sealing ring 2 fills a gap between the inner side of the sewer pipe 6 and the outer side 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 layer board 51 of the base layer assembly 5, the first 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 turnover part 32 is in low contact with the upper surface of the base layer board 51; the lower edge of the water outlet 111 is not higher than the original ground 9.

The double drainage floor drain of assembled suitable for overhead ground that this application embodiment provided can be according to the high adjustment floor drain sleeve pipe's of assembled ground length for after inserting the downcomer, the up end of major diameter section is parallel or be located below the basal plate with the basic plate, the installation of convenient follow-up relevant floor drain accessory. The contact part of the small-diameter section and the sewer pipe adopts a sealing ring as positioning sealing. The sealing ring can assist in positioning the floor drain sleeve, and meanwhile, a good sealing effect can be achieved, so that water flow is prevented from flooding from the sewer pipe. The floor drain flange can seal the gap between the floor drain sleeve and the base layer assembly, so that ground water is prevented from entering the lower part of the ground assembly. The floor drain can be suitable for assembly type floors of various different types and specifications, and the problem that the floor drain cannot be installed on the traditional assembly type overhead floor is effectively solved. The double-drainage floor drain sleeve is provided with a circle of secondary water outlet which is used for draining the accumulated water on the ground with the original structure. The inner wall of the sleeve pipe is measured in the water outlet to prevent accumulated water from returning upwards and only flowing downwards into the water outlet pipe; meanwhile, the inner wall and the outer wall of the sleeve are connected at intervals, a water-draining space is fully reserved, and the connection part is designed to be an inward oblique angle, so that even if water is reflected, the water is only converged between the inner wall and the outer wall and falls down again, and the ground with the original structure cannot be reversed.

The floor drain cover assembly 4 comprises a floor drain panel 41 provided with a grate and a second tubular part 42 connected with the floor drain panel 41; the second tubular portion 42 is configured to be inserted into the first tubular portion 31, so that the lower surface of the floor drain panel 41 is in low contact with the upper surface of the turnover portion 32; the deodorizing floor drain core 14 is disposed inside the small diameter section 12. The floor drain panel may be used to form floor drain grate providing water inlet. The second tubular part is inserted into the large-diameter section to complete the integral installation of the floor drain.

In order to further improve the deodorizing performance of the floor drain, the embodiment of the application can further provide that the second tubular portion is provided with a deodorizing floor drain core. The floor drain is an important interface for connecting a drainage pipeline system with the indoor ground, is used as an important component of the drainage system in a house, has good performance, directly influences the quality of indoor air, and is very important for controlling the peculiar smell of a bathroom. The odor-resistant floor drain core piece is arranged, so that the problem of odor-resistant floor drain can be effectively prevented. The deodorizing floor drain core piece can adopt any floor drain deodorizing structure in the prior art.

In order to facilitate the installation and fixation of the deodorizing floor drain core, as shown in fig. 4 and 5, the embodiment of the application may provide that the small diameter section 12 is provided with a plurality of inward protruding fastening convex portions 121, and the deodorizing floor drain core 14 is provided with a plurality of fastening concave portions 141; the number and the spacing of the fastening convex portions 121 are the same as the number and the spacing of the fastening concave portions 141; the snap tab 121 may pass through the snap recess 141. When in installation, as shown in fig. 6, the buckle concave position is aligned with the bayonet convex position and is upwards placed into the deodorization floor drain core. As shown in figure 7, the deodorant floor drain core is rotated to rest on the bayonet protrusions.

It can be appreciated that the sealing ring provided by the embodiment of the application can be used as a sealing piece, and meanwhile, the sealing ring also plays a role in positioning the floor drain sleeve and the sewer pipe. The principle is that after the sealing ring is sleeved outside the small-diameter section, the outer diameter of the sealing ring is larger than the inner diameter of the sewer pipe, and when the floor drain sleeve is installed, the floor drain sleeve is required to be pressed downwards with force until the floor drain sleeve is installed in place. In order to prevent the sealing ring from being unable to enter the sewer pipe when being acted by upward force. The embodiment of the application can provide that the joint of the large diameter section 11 and the small diameter section 12 forms a shoulder structure 13, and the shoulder structure 13 is used for limiting the sealing ring 2 sleeved outside the small diameter section 12. The formed shoulder structure can prevent the sealing ring from excessively moving upwards, so that the sealing ring can enter the sewer pipe.

The seal ring provided in the embodiments of the present application may take a variety of forms, for example, in one implementation manner, the seal ring may be provided as a waterproof rubber ring. The rubber ring has the advantages of low price, easy acquisition, convenient use, long service life and the like.

The basic unit spare that this application embodiment provided is as the part on assembled overhead ground, when using under scene such as bathroom, needs to guarantee that it has good waterproof performance. To this end, as shown in fig. 8, the present embodiment may provide that the base layer assembly 5 includes a balance plate 52, a waterproof membrane 53, an adhesive layer 54, and a decorative panel 55 sequentially positioned on an upper portion of the base layer plate 51; the lower surface of the turnup 32 is in low contact with the upper surface of the waterproofing membrane 53, and the adhesive layer 54 extends between the upper surface of the turnup 32 and the floor drain panel 31. After the bonding layer is solidified, gaps existing in the turnover parts can be blocked, so that a further waterproof effect is achieved.

In order to improve the aesthetic property of the floor drain after being installed, the floor drain panel can be provided with the upper surface flush with the upper surface of the decorative panel. Specifically, the waterproof membrane is a PE waterproof membrane. The base layer assembly 5 is connected with the ground through a plurality of leveling bolts 7. In practical application, the base plate can be 15 mm thick, the balance plate can be 9 mm thick, the PE waterproof membrane can be 0.75 mm thick, and the decoration panel can be a ceramic tile 9 mm thick. The basic unit assembly can be installed in a leveling mode by adopting a plurality of leveling bolts, and a polymer cement (JS) waterproof paint layer is arranged on the upper portion of the original ground.

The floor drain that this embodiment provided is when in actual use, earlier with fixed buckle rubber ring sleeve on the second half minor diameter section of double drainage floor drain sleeve pipe, then place the floor drain sleeve pipe downwards from the floor drain entrance that built on stilts ground basic unit board was reserved, insert the downcomer that original structure reserved with the floor drain sleeve pipe slightly hard during the installation of taking care, fixed buckle rubber ring on the floor drain sleeve pipe and downcomer inner wall naturally form a pressure for drainage sleeve pipe and downcomer connection form a inclosed inner chamber, prevent rivers to leak to former ground on the water flood, note that double drainage floor drain sleeve pipe upper border is as far as with built on stilts basic unit board at a plane or slightly below built on stilts basic unit board. Then, according to actual needs, waterproof is carried out on the overhead ground base plate. After water is completely removed, SM glue is coated on the outer side of the waterproof floor drain flange, the waterproof floor drain flange is inserted and buckled in a hole at the upper part of the double-drainage floor drain sleeve, and the waterproof floor drain flange is compacted. The floor drain sleeve and the overhead ground are fixed into a whole. And then the floor finish and the floor drain cover plate can be laid continuously.

In order to facilitate the adjustment of the length of the floor drain sleeve according to the actual use situation, as shown in fig. 9 and 10, the embodiment of the application can provide a height adjusting sleeve 8, wherein a plurality of gear teeth 81 are arranged on the inner side of the height adjusting sleeve 8; the upper end of the large-diameter section is provided with a rubber head 82; the floor drain sleeve 1 is inserted into the height adjusting sleeve 8, and the rubber head 82 extends into one of the gear teeth 81, so that the floor drain sleeve 1 is connected with the height adjusting sleeve 8 in a buckling manner.

The floor drain sleeve pipe that provides links to each other with the mode of high adjustment sleeve pipe with the buckle, need not to cut in the in-service use, can realize floor drain sleeve pipe and high adjustment sleeve pipe's overall length through the position that the buckle connects for after inserting the downcomer, the up end of major diameter section and basic board are even or be located below the basic board, make things convenient for the installation of follow-up relevant floor drain accessory.

When the floor drain sleeve provided by the embodiment of the application is matched with the height adjusting sleeve, the height adjusting sleeve and the floor drain sleeve are assembled and installed at first, and the connection position is determined according to the required length. Then the fixed buckle rubber ring is sleeved on the small diameter section of the lower half part of the floor drain sleeve, then the floor drain sleeve is placed downwards from the floor drain hole reserved by the overhead ground base plate by holding the height adjusting sleeve, the floor drain sleeve is slightly forcefully inserted into the sewer pipe reserved by the original structure during installation, the fixed buckle rubber ring on the floor drain sleeve and the inner wall of the sewer pipe naturally form pressure, the water drain sleeve and the sewer pipe are connected to form a closed inner cavity, water flow is prevented from leaking upwards to the original ground, and the upper edge of the double-water drain floor drain sleeve is as far as possible on a plane or slightly lower than the overhead base plate. Then, according to actual needs, waterproof is carried out on the overhead ground base plate. After water is done, SM glue is applied to the outer side of the waterproof floor drain flange, the waterproof floor drain flange is inserted and buckled in a hole at the upper part of the double-drainage floor drain sleeve, and the waterproof floor drain flange is compacted. The floor drain sleeve and the overhead ground are fixed into a whole. And then the floor finish and the floor drain cover plate can be laid continuously.

In a word, the assembled double-drainage floor drain applicable to the overhead ground, provided by the application, has the advantages of simple and reasonable structure and convenience in installation and use, and solves the practical problem that the floor drain cannot be arranged on the assembled overhead ground; the rubber ring prevents water flow from the sewer pipe to the original ground. The length of the floor drain sleeve can be determined according to the height of the overhead, and the upper neck of the floor drain can be cut. Or in a combined form of a height adjusting sleeve and a floor drain sleeve, the whole length can be determined according to the height of the overhead without cutting. The universality of the floor drain is improved. The water-proof chassis is replaced by the overhead ground in the dry and wet area, so that the cost is greatly reduced; the floor drain sleeve is provided with a circle of secondary water outlet which is used for draining accumulated water on the ground of the original ground structure. The inner wall of the sleeve pipe is measured in the water outlet to prevent accumulated water from returning upwards and only flowing downwards into the water outlet pipe; meanwhile, the inner wall and the outer wall of the sleeve are connected at intervals, a water-draining space is fully reserved, and the connection part is designed to be an inward oblique angle, so that even if water is reflected, the water is only converged between the inner wall and the outer wall and falls down again, and the ground with the original structure cannot be reversed. Is worth popularizing and using in a large area.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.

Claims (10)

1. An assembled double drainage floor drain suitable for overhead ground, comprising:

the floor drain sleeve comprises a large-diameter section and a small-diameter section; the outside of the small-diameter section is sleeved with a sealing ring, and the outer side surface of the sealing ring protrudes out of the outer side surface of the large-diameter section; the large-diameter section is provided with a plurality of water discharge ports, the inner side of each water discharge port is provided with a blocking part, and the blocking parts are 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 below the lower edge of the water outlet;

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

the small-diameter section is inserted into the sewer pipe through a through hole on the base layer assembly of the assembled ground, and the diameter of the outer surface of the sealing ring is larger than the inner diameter of the sewer pipe, so that the sealing ring fills a gap between the inner side of the sewer pipe and the outer side of the small-diameter section; the end face of the large-diameter section does not protrude out of the upper surface of the base layer 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 in low connection with the upper surface of the base layer plate; the lower edge of the water outlet is not higher than the original ground.

2. The assembled double drain floor drain for overhead ground according to claim 1, further comprising a floor drain cover assembly and a deodorizing floor drain core, the floor drain cover assembly comprising a floor drain panel provided with a grate and a second tubular portion connected to the floor drain panel; the second tubular part is used for being inserted into the first tubular part so as to enable the lower surface of the floor drain panel to be in low connection with the upper surface of the turnover part; the deodorizing floor drain core is arranged on the inner side of the small-diameter section.

3. The assembled double-drainage floor drain applicable to the overhead ground according to claim 2, wherein the small-diameter section is provided with a plurality of inwards-protruding clamping convex positions, and the deodorizing floor drain core is provided with a plurality of clamping concave positions; the number and the spacing of the buckling convex positions are the same as the number and the indirect of the buckling concave positions; the buckle convex position can penetrate through the buckle concave position.

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

5. The assembled double drainage floor drain for overhead ground according to claim 2, wherein the base layer assembly comprises a balancing plate, a waterproof membrane, an adhesive layer and a decoration panel which are sequentially positioned at the upper part of the base layer plate; the lower surface of the turnover part is connected with the upper surface of the waterproof membrane 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 assembled double drain floor drain for overhead ground according to claim 5, wherein the upper surface of the floor drain panel is flush with the upper surface of the decorative panel.

7. The assembled double drain floor drain for overhead ground according to claim 6, wherein the waterproofing membrane is a PE waterproofing membrane.

8. The assembled double drainage floor drain for overhead ground according to claim 1, wherein the base layer assembly is connected with the original ground through a plurality of leveling bolts, and a polymer cement waterproof paint layer is arranged on the upper portion of the original ground.

9. The assembled double drainage floor drain for overhead ground according to claim 1, further comprising a height adjustment sleeve, wherein a plurality of gear teeth are arranged on the inner side of the height adjustment 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, and the rubber head extends to the inside of one of the gear teeth, so that the floor drain sleeve is connected with the height adjusting sleeve through a buckle.

10. The assembled double drain floor drain for overhead ground according to claim 9, wherein the rubber head is a composite waterproof rubber head.

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