KR200191082Y1 - Drain trap - Google Patents

Abstract

The present invention relates to drainage, the trap 40 is installed on the top of the buried drain pipe 4 of the bottom (2) to prevent backflow of odor, trap assembly hole 51 is assembled to the trap 40 The bottom plate (2) by being placed on the support plate (50) and the support plate (50) formed at an inclined position, and having a bottom area relatively smaller than that of the support plate (50) and moving back and forth and left and right on the support plate (50). The drainage tank 1 including the drainage plate part 60 which is aligned with the tile 5 to be constructed in is disclosed. Preferably, the drainage pipe 4 is provided between the drainage pipe 2 and the support plate 50. Adapter 10 formed at the inner circumferential surface of the slit sets 21 connected to the upper end of the slit sets 21 or slit sets 21 composed of slits 21A to 21E having different lengths in steps. 21 or the support protrusion 11 is formed on the outer peripheral surface and Slits having the same length among the slits of the slit sets 21 are assembled to the adapter 10 in a state that the slits having the same length are respectively fitted to the support protrusions 11 so that the height of the upper end thereof is changed up and down ( 20), and the position adjusting plate 30, which is freely rotatably mounted on the height adjusting member 20, is formed with a through hole 31 into which the trap 40 is inserted at a position biased to one side. have.

Description

Drain Trap

(Technology)

The present invention relates to a drainage field, and more particularly, to a drainage field installed on the floor of a bathroom, such as a tile is installed, the drainage field is easy to adjust the horizontal position and height adjustment.

(Background)

Floors in places such as bathrooms, toilets, and verandas are usually tiled with a number of advantages in hygienic, cleaning, and decorative aspects. Drainpipes with drain traps to prevent backflow are installed.

Looking at the process of constructing the drain and tile on the floor of the bathroom, first, in the step of placing concrete on the floor, the drain pipe is buried in consideration of the installation location of the drain, and then the sleeve for installing the drain is connected to the top of the drain pipe. When laying together, when finishing the floor, it is common to assemble the hydrant in the sleeve, select the floor with aggregate such as mortar, and then attach the tile to the final finish.

Thus, when constructing the floor of a bathroom or the like where drainage and tile finishing are applied at the same time, the top height of the drainage should be aligned with the top height of the tile to be finished and the horizontal position before drainage does not deviate from the alignment of the tiles. It is important to make sure that it is in harmony with the floor tiles.

The former method of controlling the height of the former is to control the height of the drainage by adjusting the screwing depth of the drainage by configuring the drainage field in a screw-join structure.

When installing a tile in a bathroom or the like, first attach the tile to the wall surface, and then attach the tile from the wall side of the floor to the row of the wall tile. It often happens that there is a mismatch. For example, in a 200mm × 200mm sized tile, it is most desirable that the hydrant is correctly placed in a size and position corresponding to one floor tile, but in practice, the hydrant is placed over two or four tiles. In most cases, it is only possible to construct tiles by cutting them to fit the size of the tiles before the drainage, and this is not only a factor in the cost increase due to the increased workload, but also the appearance of the floor of the bathroom. It has been a factor to make things worse.

As a countermeasure for solving the problems related to the installation of the drainage and the alignment of the tiles, a positioning plate 120 configured as shown in FIGS. 9 and 10 is disposed between the sleeve 110 and the drainage 100. By adjusting the height of the drain 100 according to the depth of the screw coupling between the position control plate 120 and the drain board 100 while moving the movable plate 130 of the position control plate 120 to the left and right ( The technique of adjusting the position of 100 to some extent to align the tiles has been developed (see JP 1996-37612 A).

However, the drainage structure including the conventional positioning plate 120 is the drain plate 100 by sliding the left and right moving plate 130 relative to the positioning plate 120 and rotating the positioning plate 120. Since it is not easy to adjust the position precisely in the actual construction site because it is to adjust the position of the foreign matter, such as sand sandwiched between the parts, the positioning plate 120 is not well rotated as well as the moving plate 130 There is a problem that the sliding movement is not good, in particular the rotation of the drain plate 100 with respect to the positioning plate 120 and the left and right sliding movement of the movable plate 130 with respect to the positioning plate 120 of the drain plate 100 Adjusting the height and position is not so easy that the builder gives up the tile alignment and builds it.

An object of the present invention is to solve the problems associated with installing the drainage on the floor where the tile is constructed, it is easy to adjust the horizontal position and easy to adjust the height of the top and bottom to simplify the alignment with the tile. To provide a new structure of drainage.

Another object of the present invention is to provide tiles and drainage works for both drainage works in which the drainage works are installed after the sleeves are laid in the concrete in the floor or small drainage works that are installed directly in the drain pipe without embedding the sleeves. It is to provide a drainage facilitating easy alignment of.

1 is an exploded perspective view of an exemplary drainage water in accordance with the present invention;

Figure 2 is a schematic cross-sectional view of the drainage before the construction of Figure 1 in the bathroom floor;

Figure 3 is a schematic diagram showing the horizontal position adjustment by the positioning plate,

Figure 4 is a schematic diagram showing the horizontal position control by the support plate and the drain plate,

Figure 5 is an exploded perspective view of another exemplary drainage according to the present invention,

Figure 6 is a schematic cross-sectional view of the drainage before the construction of Figure 5 on the bathroom floor;

Figure 7 is an exploded perspective view of another exemplary drainage according to the present invention,

Figure 8 is a schematic cross-sectional view of the drainage before the construction of Figure 7 on the bathroom floor;

Figure 9 is a schematic cross-sectional view of a state prior to the construction of drainage;

10 is a perspective view of the positioning plate of FIG.

* Description of the symbols for the main parts of the drawings *

1: drainage 2: floor 4: drainage pipe

5, 61: Tile 6: Mortar 10: Adapter

11: Base protrusion 20: Height adjusting member 21: Slit set

30: positioning plate 31: through hole 40: trap

50: support plate 60: drain plate

According to the present invention, the trap is installed on the top of the drain pipe to prevent backflow of odor, the support plate is formed in a position in which the trap assembly hole is assembled to the trap side, and the support plate having a relatively smaller bottom area than the support plate There is provided a drainage tank including a drainage plate that is aligned with the tile installed on the floor by moving from above, to the front, to the left and to the right.

Preferably between the drain pipe and the support plate, the adapter, the slit sets or the support protrusion is formed on the inner circumferential surface of the slit sets connected to the top of the drain pipe and composed of a plurality of support protrusions or slits having different lengths in steps A height adjusting member which is formed and assembled to the adapter with slits having the same length among the slits of the slit sets respectively fitted to the support protrusions, and whose height at the top thereof is changed up and down, and the height adjusting member freely. By further including a positioning plate formed with a through hole through which the trap is inserted in a position rotatably raised and biased to one side, it is possible to easily adjust the horizontal position before drainage as well as the vertical height adjustment.

As the drainage plate portion, a tile type drainage plate using the same tile as the tile installed on the floor, or a metal drainage plate such as ordinary stainless steel can be used.

In addition, the adapter may be a sleeve having a sufficient internal space that is embedded in the concrete of the floor with the drain pipe in the state connected to the top of the drain pipe, or a socket that is assembled directly to the top of the drain pipe without being embedded in concrete in advance.

Hereinafter, with reference to the accompanying drawings will be described in detail the drainage according to the present invention. The following embodiments are only illustrative of the drainage according to the present invention, it is not intended to limit the scope of the present invention.

Figure 1 is an exploded perspective view of an exemplary drain before the drain according to the present invention, Figure 2 is a schematic cross-sectional view of a state in which the drain before the installation of Figure 1 on the bathroom floor, Figure 3 is a schematic view showing the horizontal position control by the position adjustment plate, Figure 4 Figure 5 is a schematic view showing the horizontal position control by the support plate and the drainage plate, Figure 5 is an exploded perspective view of another exemplary drainage according to the present invention, Figure 6 is a schematic cross-sectional view of the state of the drainage construction of Figure 5 on the bathroom floor, Figure 7 8 is an exploded perspective view of another example of the drain prior to the present invention, FIG.

First, with reference to Figures 1 and 2 will be described one preferred embodiment of the water discharge 1 according to the present invention. As shown, the drain 1A of this embodiment includes the adapter 10, the height adjustment member 20, the positioning plate 30, the trap 40, the backing plate 50, and the drainage plate portion 60 Consists of the composition.

The adapter 10 of the present embodiment is a member assembled to the top of the drain pipe 4 embedded in the floor 2 so that the drainage pipe 1 can be installed on the floor 2 such as a bathroom, and the top of the drain pipe 4. It is a sleeve 10A having a relatively large inner space which is previously connected to and embedded with the drain pipe 4. On the inner circumferential surface of the sleeve 10A, there are a plurality of (eg three or four) elongated support protrusions 11 elongated in the vertical direction, for example, in the case of three at intervals of 120 °, and in the case of four It is formed at intervals of °. Reference numeral 12 denotes a passage through which water is drained.

The height adjusting member 20 is inserted into the inner circumferential surface of the sleeve 10A and assembled. Around the outer circumferential surface of the height adjusting member 20, a slit set 21 composed of a plurality of slits 21A to 21E having different lengths is formed as many as the number of the supporting protrusions 11. That is, when the supporting protrusions 11 are three, the outer circumferential surface of the height adjusting member 20 is virtually divided into three sections at 120 ° so that each of the plurality of slits 21A to 21E having different lengths is formed in one compartment. Three slit sets 21 are formed in a set. Similarly, in the case of four supporting protrusions 11, four slit sets 21 are virtually divided by 90 degrees. The number of slits 21A-21E constituting each slit set 21 can be appropriately formed according to the size of the diameter of the height adjusting member 20, and can be formed from as few as two to as many as ten or more. And, preferably, about 4-7 pieces can sufficiently adjust the installation height of the drain electric field 1A of this embodiment. The height of the upper end of the height adjusting member 20, that is, the installation height of the drainage plate part 60, which will be described later, is fitted to any one of the slits 21A to 21E of the slit set 21 to the support protrusion 11. It depends on whether it is assembled. That is, when the support protrusion 11 is inserted into the deep slit 21A deeply dug, the height of the upper end of the height adjusting member 20 is lowered, and when the support protrusion 11 is inserted into the short slit 21E, which is lowered, the height adjusting member 20) The height of the top of the box becomes higher.

Therefore, if the slit having a length suitable for the construction condition of the drainage field 1A of the present embodiment is properly selected and assembled into the support protrusion 11, the height of the drainage plate 60 can be adjusted freely, and the adjacent length The difference in length between the two slits can be sufficiently covered by the gradient adjustment of the bathroom floor (2).

In the above, an example in which the supporting protrusions 11 are formed on the inner circumferential surface of the sleeve 10A and the slit set 21 is formed on the outer circumferential surface of the height adjusting member 20 has been described. It is also possible to form a slit set and to form a supporting protrusion on the outer circumferential surface of the height adjusting member 20.

Position adjustment plate 30 is mounted on the height adjustment member 20 is assembled. Positioning plate 30 is a plate-like member having a circular outline contour corresponding to the top cross-sectional shape of the sleeve 10A, the plane is formed with a hole 31 penetrated at a position separated from the central portion, Assembled to be freely rotated with respect to the height adjustment member (20). The assembly of the height adjusting member 20 and the position adjusting plate 30 forms a locking jaw 22 around the inner circumferential surface of the height adjusting member 20 so that the position adjusting plate 30 is placed on the locking jaw 22. Although not shown, it is possible to adopt a structure such as to form a locking jaw around the outer circumference of the positioning plate 30 to be caught on the top of the height adjustment member (20). Accordingly, as the position adjusting plate 30 is rotated with respect to the height adjusting member 20, the position of the through hole 31 is changed back and forth and left and right, thereby adjusting the horizontal position of the support plate 50, that is, the drainage plate part 60. Primary adjustment is possible (this horizontal position adjustment will be described in detail later).

The trap 40 is fitted into the through hole 31 of the positioning plate 30. The trap 40 has a function of preventing odor from flowing back from the drain pipe 2, and the diameter of the through hole 31 has a diameter such that the trap 40 can rotate.

A support plate 50 is assembled to the upper end of the trap 40. The base plate 50 is a rectangular plate-like member having a sufficiently large bottom area as compared to the drainage plate part 60 described later, and the trap assembly hole 51 is formed at a position deviated to one side from the center thereof, and the trap 40 ) Is inserted into and removed from the trap assembly hole 51 of the support plate 50, but is assembled to the support plate 50 in such a way that it does not fall downward. The support plate 50 has a function to secondaryly adjust the horizontal position of the drainage plate portion 60 after the position control plate 30, the content of this horizontal position adjustment will be described in detail later.

On the support plate 50, the water flowing through the bottom 2 is drained to the trap 40, and the drainage plate 60 exposed to the eyes of the user is installed by final finishing the bottom 2 together with the tile 5. do. The drainage plate part 60 has a floor area smaller than that of the support plate 50, and the horizontal position thereof corresponds to the alignment of the tiles 5 to be constructed by moving back, front, left, and right in a state naturally placed on the support plate 50. Can be adjusted. The usable drainage plate portion 60 is not particularly limited as long as it can be drained by the trap 40, and the upper cover in JP-A-99-39270 filed by the present inventors shown in Figs. Tile-type drainage plate 60A, which is named as plate, or metal drainage plate 60B, such as stainless steel as illustrated in FIGS. 5 and 6, may be variously applied, and the aesthetics of the tile 5 installed on the floor 2 may be changed. The tile-shaped drain board 60A which does not harm is preferable.

As shown in Fig. 1 and Fig. 2, the tiled drainboard 60A firmly supports the tile 61 and the tile 61 to be attached by an adhesive or the like and prevents the tile 61 from being damaged. Fixing plate 62 having a groove 63 that can be lowered, support frame 64 for supporting the fixing plate 62 on the support plate 50, and the outer periphery of the fixing plate 62 and the support frame 64 The grill 65 may be formed with a plurality of drain holes 66 covering the drainage passages 67 formed between the inner circumferences of the circumference, and the circumference of the support frame 64 may be mortar 6 as described later. It is fixed to the bottom (2) by the fixing plate 62 and the grill 65 can be separated and assembled from the support frame 64 can be easily removed dirt and the like caught in the drainage.

Hereinafter, with reference to FIG. 2, the method of constructing the drain electric field 1A and the method of adjusting the height and horizontal position of a drain electric field are demonstrated. First, the height adjusting member 20 is inserted into the sleeve 10A, which is the adapter 10 embedded in the concrete 3 of the bottom 2, and assembled. At this time, in consideration of the construction height of the tile 5, the slits 21A-21E to be fitted to the support protrusion 11 are appropriately selected. Next, the position adjusting plate 30 is inserted into the height adjusting member 20. At this time, by judging the arrangement state (alignment) of the tiles (5) attached to the wall and floor 2, such as bathroom, roughly determine the horizontal position of the drain jeon 1A, The positioning plate 30 is rotated such that the through hole 31 is positioned at a position corresponding to the horizontal position.

As shown in Fig. 3, when the diameter of the positioning plate 30 is approximately 190 mm and the through hole 31 having a diameter of 90 mm is formed inside 10 mm from the outer diameter of the positioning plate 30, The horizontal position of the drain electric field 1A, which can be adjusted by changing the position, reaches approximately 80 mm front, rear, left and right. Since the excretion position of the drain pipe 4 is generally designed in consideration of the tile construction, when the tile 5 of 200MM × 200MM is constructed, the alignment of the tile 5 can be almost adjusted by the positioning plate 30. .

Next, the trap 40 having the support plate 50 assembled therein is inserted into the through hole 31, and the tile drain plate 60A serving as the drain plate 60 described above is mounted on the support plate 50. ) And place it at the exact position of the line.

The horizontal position control of the drainage field 1A by the positioning plate 30 is most often caused by an error of several millimeters to several tens of millimeters in the alignment of the tiles 5 adjacent to the drainage field 1A. In particular, the horizontal position adjustment by the position adjustment plate 30 is adjusted to rotate the position adjustment plate 30 within the circumference of the circular height adjustment member 20, so even if you want to adjust only the position before and after the drainage 1A The position of also changes together, making it difficult to achieve a complete alignment. For example, when the diameter of the positioning plate 30 is approximately 190MM and the through hole 31 having a diameter of 90MM is formed inside 10MM from the outer diameter of the positioning plate 30, as shown in FIG. Assuming that the position of the through hole 31 is moved from the point A to the point B by rotating the positioning plate 30 with respect to the position 20, the position of the drainage field 1A moves downward 40 mm, but at the same time to the right. Since the 40MM is moved, it is impossible to move the position of the drain 1A only by 40MM, and thus it is practically impossible to completely adjust the horizontal position of the drain 1A only by the positioning plate 30.

In this way, the horizontal position of the drain plate 1A that cannot be adjusted by the position adjusting plate 30 can be precisely adjusted by freely adjusting the position of the tile type drain plate 60A placed on the support plate 50. That is, as shown in Figure 4, the support plate 50 of the drain board (1A) according to the present invention not only has a size (for example, 270MM × 270MM) sufficiently larger than the drain plate 60, trap assembly hole 51 That is, since the position of the trap 40 is biased to one side of the base plate 50, the tile placed on the base plate 50 is properly selected by selecting the direction in which the large area portion 52 and the small area portion 53 of the base plate 50 are placed. By moving the position of the mold drainage plate 60A in front, rear, left, and right, the position of the tiled drainage plate 60A can be adjusted over the front, rear, left, and right several tens of MM or more, and thus, the tiled drainage plate 60A is aligned with the adjacent tiles 5. You can adjust its position to fit exactly.

After the position of the tile-shaped drain board 60A is precisely matched with the tile alignment, the tile 5 attached to the adjacent place is finally attached to the drain hydrant 1A. At this time, on the outer periphery of the support plate 50 and the outer periphery of the support frame 64 of the tile-shaped drainage plate 60A, the mortar 6 having a height corresponding to the construction height of the adjacent tile 5 is raised, and the tile-shaped drainage plate The four tiles 5 immediately adjacent to 60A extend over the outer circumference of the support plate 50 to the outer circumference of the support frame 64, and the four tiles 5 adjacent to the top of the support frame 64. ) Has a gap corresponding to the width of the mortar between the tiles.

As a result, the support frame 64 of the tile-shaped drainage plate 60A, which is freely placed on the support plate 50, is fixed by the mortar 6 and the four tiles 5, whereby the tile 5 and the drainage pipe 1A ) Construction is completed. Drainage 1A of the present invention completed construction only the fixing plate 62, the grill 65 and the trap 40 of the tile-shaped drainage plate (60A) can be separated for dirt removal, etc. It is fixed by the mortar (6).

Hereinafter, with reference to Figures 5 and 6 will be described another embodiment of the water discharge 1 according to the present invention. Drainage 1B of the present embodiment is a small drainage installation that installs the drainage immediately in the drainage pipe 4 without embedding the sleeve 10A as shown in FIG. 1. Preferably, the adapter 10 and the drainage plate portion ( Except for the structure of 60, the height adjusting member 20, the positioning plate 30, the trap 40, and the support plate 50 is the same as the embodiment of FIG.

The adapter 10 of this embodiment is a member assembled to the upper end of the drain pipe 4 embedded in the floor 2 so that the drainage field can be installed in the floor 2 such as a bathroom, similarly to the sleeve 10A described above. However, it is not embedded in the bottom (2) in advance with the drain pipe (4), but when inserting the drain before the installation directly into the top of the drain pipe (4) from the bottom side of the bathroom or screw assembly. In case of insertion type, the edge T is formed on the upper end of the socket 10B so as not to fall into the drain pipe 4. The height adjusting member 20 is fitted into the socket 10B, and a plurality of supporting protrusions 11 or slit sets 21 are formed on the inner circumferential surface of the socket 10B, so that the height adjusting member 20 is formed. It is selectively assembled with the slit sets 21 or the support protrusion 11 of the installation height of the drainage is adjusted.

Height adjustment member 20, the position adjustment plate 30, the trap 40, and the support plate 50 of the present embodiment is assembled in the same structure and the same method as the above embodiment of Figure 1, on the support plate 50 Positioned at a position corresponding to the alignment of the tiles 5, the metal cultivation plate 60B is naturally raised.

The metal drain plate 60B may include a metal grill plate 71 having a plurality of drain holes 72 formed therein and a support frame 73 supporting the metal grill plate 71. Also in this embodiment, the mortar 6 corresponding to the construction height of the adjacent tile 5 is mounted on the outer periphery of the support frame 73, and the four tiles 5 immediately adjacent to the metal cultivation plate 60B. ) Is spread over the outer circumference of the support plate 50 to the outer circumference of the support frame 73, the width of the mortar between the tile and the tile between the top of the support frame 73 and the four tiles (5) adjacent to each other. There will be an interval corresponding to. As a result, the support frame 73 of the metal cultivation plate 60B, which is freely placed on the support plate 50, is fixed by the mortar 6 and the four tiles 5, whereby the tile 5 and the drain jeon 1B. Construction is completed. Only the grill plate 71 and the trap 40 of the metal drain plate 60B can be separated for the removal of dirt, etc., but the rest of the drainage tank 1B of the present embodiment is completed on the tile 5 and the mortar 6. To be fixed.

Hereinafter, with reference to Figures 7 and 8 will be described another embodiment of the drain electric field 1 according to the present invention. The drainage tank 1C of the present embodiment does not use the adapter 10, the height adjusting member 20, and the position adjusting plate 30 of the above-described embodiments, and the support plate 50 and the drain plate part directly on the drain pipe 4. 60) is the structure to install.

The present embodiment is somewhat limited in the height control before the drainage by the omission of the adapter 10, the height adjustment member 20 and the position control plate 30 and the horizontal position control of the drainage through the position control plate 30, but , Can be constructed by a simple process of installing the support plate 50 and the drain plate 60 directly on the top of the drain pipe 4 embedded in the bottom (2), the large area 52 and the small area of the support plate 50 By properly selecting the direction in which the 53 is placed and moving the position of the drainage plate portion 60 placed on the support plate 50 in front, rear, left and right, there is an advantage that the drainage can be installed to match the alignment of the tiles 5.

In addition, although not shown, the above-described position adjustment plate 30 and the support plate 50 are omitted, while the adapter 10 and the height adjustment member 20 are disposed on the upper end of the embedded drain pipe 4 of the bottom 2. By assembling sequentially, by installing the trap 40 and the drainage plate portion 60 to prevent the backflow of odor on the height adjustment member 20 by the adapter 10 and the height adjustment member 20 It is also possible to configure the drain box (1) to adjust the installation height of 1).

The present embodiment has a limit that can not precisely adjust the horizontal position control of the drainage (1) by omitting the position adjustment plate 30 and the support plate 50 of a large area, but the conventional screw coupling method up and down height adjustment mechanism By replacing the assembly structure of the support protrusion 11 and the slit 21, there is an advantage that it is possible to more easily adjust the installation height before the drainage.

According to the drainage warfare according to the present invention described above, by the assembly of the adapter 10 and the height adjustment member 20 by the support protrusion 11 and the slits 21, the height of the drainage can be easily adjusted as well as the position control plate. (30), the horizontal position of the drainage can be easily adjusted by the mutual assembly relationship between the support plate 50 and the drainage plate 60, the alignment of the drainage line in the installation of the drainage in the bathroom in which the tile is constructed It can be installed by precisely positioning it in a position corresponding to.

In addition, the drainage of the present invention is easily aligned with the tile for both the drainage construction of installing the drainage after the sleeve is pre-embedded on the floor and the drainage construction of installing the drainage immediately in the drainage pipe without embedding the sleeve. It is possible to install drainage.

Claims (4)

The base plate is provided at the upper side of the buried drain pipe 4 of the bottom 2 to prevent backflow of odor, and the support plate formed at a position where the trap assembly hole 51 to which the trap 40 is assembled is biased to one side. (50), and the tile (5) installed on the bottom (2) by moving on the back and left and right on the backing plate 50 and having a floor area relatively smaller than the backing plate 50 and the backing plate (50) Drainage, characterized in that it comprises a drainage plate portion 60 is aligned. 2. The slits 21A-according to claim 1, wherein between the drain pipe 2 and the support plate 50 are connected to an upper end of the drain pipe 4, and the plurality of support protrusions 11 or slits have different lengths in steps. The adapter 10, the slit sets 21 or the supporting protrusions 11 formed on the inner circumferential surface of the slit sets 21 composed of 21E) are formed on the outer circumferential surface, and among the slits of the slit sets 21 are the same. The height adjusting member 20 is assembled to the adapter 10 in a state in which the slits having a length are fitted to the support protrusions 11, respectively, and the height of the upper end thereof is changed up and down, and the height adjusting member 20. And a position adjustment plate (30) having a through hole (31) into which the trap (40) is inserted at a position biased to one side and freely rotatable. According to claim 1 or claim 2, The drainage plate portion 60, the tile 61, the tile 61 is attached to the grooves that can support the tile 61 is not damaged and water flows down ( Between the fixing plate 62 having a 63, the support frame 64 for supporting the fixing plate 62 on the support plate 50, and the outer circumference of the fixing plate 62 and the inner circumference of the support frame 64 Drainage, characterized in that it comprises a grill (65) formed with a plurality of drain holes (66) covering the formed drainage passage (67). Slit sets 21 connected to the upper end of the embedded drain pipe 4 of the bottom 2 and composed of a plurality of supporting protrusions 11 or slits 21A to 21E having different lengths in stages are formed on the inner circumferential surface thereof. The slits having the same length among the slits of the slit sets 21 are formed on the outer circumferential surface of the adapter 10, the slit sets 21 or the supporting protrusions 11, respectively. A height adjustment member 20 which is assembled to the adapter 10 in a fitted state, the height of which is changed up and down, and is installed on the height adjustment member 20 to prevent backflow of odors; And a drainage plate portion (60) for allowing the water flowing through the bottom (2) to be drained to the trap (40).