CN219653871U - Built-in split type multipurpose building drainage device - Google Patents

Abstract

The utility model discloses a pre-buried split type multipurpose building drainage device which comprises a shell, an outer cylinder, a fixed water seal pipe and a water seal cylinder, wherein the outer cylinder is arranged on the shell; the method is characterized in that: a drain pipe is arranged on the outer wall of the bottom plate of the shell in the outer cylinder cavity, and the inner cavity of the drain pipe is communicated with the inner cavity of the fixed water seal pipe; the lower end of the outer cylinder is provided with a positioning ring, the side wall of the periphery of the positioning ring is provided with a fixed block, the joint of the fixed block and the positioning ring is provided with a breaking groove, and the fixed block is provided with a fixed hole; the upper end of the shell is fixedly provided with a ring groove, and the inner cavity of the ring groove is communicated with the inner cavity of the shell; the upper mouth edge top of annular is equipped with accepts the lid, and the middle part of accepting the lid is equipped with the centre bore, and the central axis of centre bore and the central axis looks adaptation of casing inner chamber are equipped with the limber cover on the face of going up of accepting the lid in the centre bore outside and place the ring platform, and limber cover is placed to the limber cover and is equipped with the limber cover on the ring platform, is equipped with the limber hole on the limber cover. The utility model is embedded in the floor, can meet different drainage purposes and improves the deodorization effect.

Description

Built-in split type multipurpose building drainage device

Technical Field

The utility model relates to an improvement of an indoor floor drain of a building, in particular to a pre-buried split type multipurpose building drainage device which is pre-buried in a floor to be drained in the building and is installed in an adaptive manner according to different purposes of floor drainage, hand basin drainage, vegetable basin drainage and washing machine drainage, and is flexible and convenient.

Background

Floor drain is installed on the ground in the kitchen, balcony and washroom of the building so as to collect water on the floor of the kitchen, balcony and washroom and drain the water to a sewer main pipe, prevent the upward odor from returning below the floor drain and ensure the freshness of indoor air. The special drainage device is also arranged for the basin and the vegetable basin, and the drainage device is generally a straight pipe and can only play a role in drainage and has no deodorization function; the floor drain on the floor is generally adopted for draining the washing machine, but an upper cover on the floor drain is required to be removed, and then a water outlet of the drain pipe of the washing machine is inserted into a floor drain cavity, so that the drainage of the washing machine is realized, the time and the labor are wasted, and the deodorization cannot be realized.

The traditional floor drain comprises a shell, a sewer pipe connecting pipe, an upper cover, a fixed water seal pipe and a fixed cylinder body, wherein the fixed water seal pipe is fixedly arranged at the bottom of a cavity of the shell, the upper part of an inner cavity of the fixed water seal pipe is communicated with the inner cavity of the shell, the sewer pipe connecting pipe is arranged on the outer wall of the bottom of the shell, the inner cavity of the sewer pipe connecting pipe is communicated with the inner cavity of the fixed water seal pipe, the upper cover is arranged in an upper cover mounting groove at the upper end of the shell, the fixed cylinder body is fixedly arranged on a bottom plate of the upper cover, a side hole is arranged on the upper cover at the outer side of the fixed cylinder body, the side hole is communicated with the inner cavity of the shell at the outer side of the fixed cylinder body, sewage is inserted into the inner cavity of the shell from the side hole, flows upwards into the inner cavity of the fixed cylinder body from a cavity between the outer wall of the fixed water seal pipe and the inner wall of the fixed cylinder body, flows into the inner cavity of the fixed water seal pipe from the upper opening of the fixed water seal pipe, and finally is discharged to the sewer pipe from the sewer pipe connecting pipe; the floor drain has the following defects: because the side holes are only arranged at the periphery of the upper cover, the water-passing capability is poor, and the water blocking phenomenon is easy to occur. The floor drain is installed in building construction, the shell is fixed on the floor, when the floor drain is used as a ground waterproof layer, the waterproof layer can only be attached to the outer wall of the shell, and water can leak from a gap between the waterproof layer and the shell; because the floor tile laid in the subsequent decoration process is higher than the floor drain, a lot of tiny sundries enter the floor drain to block the floor drain, the floor drain is inconvenient to clean, and the floor tile is not easy to repair or replace.

Disclosure of Invention

The utility model aims to provide the embedded split type multipurpose building drainage device which is embedded and installed in a floor which is matched with drainage of a washing machine, drainage of a hand basin, drainage of a vegetable basin and drainage of the ground, and can meet different drainage purposes by selecting an adaptive water through cover according to the purpose needs, so that the deodorization effect is improved.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the embedded split type multipurpose building drainage device comprises a shell, an outer barrel, a fixed water seal pipe and a water seal barrel, wherein the fixed water seal pipe is fixedly arranged at the bottom in a shell cavity; the method is characterized in that: a drain pipe is fixedly arranged on the outer wall of the bottom plate of the shell in the outer cylinder cavity, and the inner cavity of the drain pipe is communicated with the inner cavity of the fixed water seal pipe; a positioning ring is fixedly arranged at the lower end of the outer cylinder, a fixed block is fixedly arranged on the side wall of the periphery of the positioning ring, a breaking groove is formed at the joint of the fixed block and the positioning ring, and a fixed hole is formed in the fixed block; the upper end of the shell is fixedly provided with a ring groove, the inner cavity of the ring groove is communicated with the inner cavity of the shell, and the diameter of the inner cavity of the ring groove is larger than that of the inner cavity of the shell; the upper opening edge of the ring groove is provided with a bearing cover, the middle part of the bearing cover is provided with a central hole, the central axis of the central hole is matched with the central axis of the inner cavity of the shell, the upper plate surface of the bearing cover outside the central hole is provided with a water passing cover placing ring table, the water passing cover placing ring table is provided with a water passing cover, and the water passing cover is provided with a water passing hole.

The lower plate surface of the bearing cover is fixedly provided with a guide convex ring, the guide convex ring is inserted into the cavity of the annular groove, and the guide convex ring coincides with the central axis of the central hole of the bearing cover.

An upper sealing cover is arranged in the ring groove cavity, the upper plate surface of the upper sealing cover is flush with the upper end of the ring groove, and the outer diameter of the upper sealing cover is the same as the inner diameter of the ring groove; a middle sealing cover is arranged at the upper opening of the fixed water sealing pipe; the lower opening of drain pipe department be equipped with the lower closing cap, the lower face of lower closing cap flushes with the lower face of holding ring, the external diameter of lower closing cap is the same with the internal diameter of urceolus.

The upper plate surface of the upper sealing cover is fixedly provided with a pull handle.

The outer side wall of the outer cylinder is uniformly and fixedly provided with 3-4 lower reinforcing plates, the upper ends of the lower reinforcing plates are fixedly connected with the outer wall of the bottom plate of the shell, and the lower ends of the lower reinforcing plates are fixedly connected with the positioning rings.

The upper end of the outer wall of the shell is uniformly and fixedly provided with 3-4 upper reinforcing plates, the upper ends of the upper reinforcing plates are fixedly connected with the bottom plate surface of the ring groove, and the middle parts of the upper reinforcing plates are provided with positioning holes.

The number of the fixing blocks is 3-4, and the fixing blocks are uniformly distributed and fixedly arranged on the peripheral side wall of the positioning ring.

The diameter of the inner cavity of the ring groove is 2-4 cm larger than that of the inner cavity of the shell; an everting edge is fixedly arranged at the upper edge of the ring groove; the height from the bottom surface of the positioning ring to the upper end surface of the ring groove is 10-14 cm.

The water seal cylinder consists of a cylinder body, a sealing cover and supporting legs, wherein 3-6 supporting legs are uniformly distributed and fixedly arranged on the lower opening edge of the cylinder body, and the sealing cover is fixedly arranged at the upper end of the cylinder body.

The sealing cover is a cambered surface sealing cover, and the outer wall of the cambered surface sealing cover is provided with a spiral blade.

The number of the spiral blades is 3-5, and the spiral blades are uniformly distributed on the outer wall of the cambered surface sealing cover.

The middle part of the water passing cover is provided with a water draining pipe jack of the washing machine.

The washing machine drain pipe jack in the middle of the water passing cover is internally and fixedly provided with a wash basin drain pipe socket nipple, and the lower end of the wash basin drain pipe socket nipple penetrates through the washing machine drain pipe jack in the middle of the water passing cover and is fixed by a nut.

The shell, the ring groove, the upper reinforcing plate, the fixed water seal pipe, the drain pipe, the outer cylinder, the fixed block and the lower reinforcing plate are made into a whole.

The utility model has the beneficial effects that: the utility model is embedded in the floor which is matched with the drainage of the washing machine, the drainage of the hand basin, the drainage of the vegetable basin and the drainage of the ground, the installation is convenient and quick, the different drainage purposes can be met by selecting the matched water passing cover according to the purpose needs, the deodorization effect is improved, the water passing capability is strong, the water sealing effect is good, the water blockage is not easy to occur, the cleaning is convenient and quick, and the service life is long.

Drawings

FIG. 1 is a schematic front view of the structure of the present utility model in a state of being pre-buried in a floor;

FIG. 2 is a schematic cross-sectional view of the structure of the present utility model taken along the direction A-A in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the structure of the housing, ring groove, fixed water seal pipe, drain pipe, outer cylinder and fixed block of the present utility model;

fig. 4 is a schematic front view of the structure of the water seal cylinder with the cambered surface sealing cover;

FIG. 5 is a schematic top view of the cambered surface seal cap with spiral vane of this utility model;

FIG. 6 is a schematic cross-sectional view of the structure of the present utility model in use for draining water on the ground;

FIG. 7 is a schematic top view of the receiving cover of the present utility model;

FIG. 8 is a schematic bottom view of the receiving cover of the present utility model;

FIG. 9 is a schematic cross-sectional view showing the structure of the present utility model when it is used as a drain of a washing machine;

FIG. 10 is a schematic cross-sectional view of the structure of the present utility model when used for draining a hand basin or a vegetable basin.

In the figure: 1. a housing; 2. a ring groove; 21. an everting edge; 3. an outer cylinder; 31. a positioning ring; 32. a fixed block; 33. breaking the groove; 34. a lower reinforcing plate; 35. a fixing hole; 4. an upper reinforcing plate; 41. positioning holes; 5. an upper cover; 51. a pull handle; 6. fixing a water seal pipe; 61. a middle sealing cover; 7. a water seal cylinder; 71. a cylinder; 72. supporting feet; 73. a cambered surface sealing cover; 74. a helical blade; 8. a drain pipe; 81. a lower cover; 9. a water supply pipe; 10. a receiving cover; 101. a central bore; 102. the water through cover is placed on the annular table; 103. a diversion convex ring; 11. a water-through cover; 111. a water through hole; 112. a water drain pipe jack of the washing machine; 113. the drain pipe of the basin is connected with the nipple.

Detailed Description

The utility model is made with reference to fig. 1, 2, 3, 4 and 5 for pre-buried installation in a concrete floor.

The embedded split type multipurpose building drainage device comprises a shell 1, an outer barrel 3, a fixed water seal pipe 6 and a water seal barrel 7, wherein the fixed water seal pipe 6 is fixedly arranged at the bottom of a cavity of the shell 1, the water seal barrel 7 is arranged in the cavity of the shell 1 and is covered on the fixed water seal pipe 6, an inner cavity of the fixed water seal pipe 6 is communicated with an inner cavity of the water seal barrel 7 and an inner cavity of the shell 1, and the outer barrel 3 is fixedly arranged on the outer wall of a bottom plate of the shell 1; the method is characterized in that: a drain pipe 8 is fixedly arranged on the outer wall of the bottom plate of the shell 1 in the cavity of the outer barrel 3, and the inner cavity of the drain pipe 8 is communicated with the inner cavity of the fixed water seal pipe 6; a positioning ring 31 is fixedly arranged at the lower end of the outer cylinder 3, a fixing block 32 is fixedly arranged on the peripheral side wall of the positioning ring 31, a breaking groove 33 is arranged at the joint of the fixing block 32 and the positioning ring 31 so as to be convenient for breaking and separating the fixing block 32 and the positioning ring 31, a fixing hole 35 is arranged on the fixing block 32, and the fixing block is fixedly connected with a supported wood template by penetrating through the fixing hole 35 through a screw, so that the bottom plate of the positioning ring 31 is tightly attached to the wood template and is fixedly arranged; the upper end of the shell 1 is fixedly provided with a ring groove 2, the inner cavity of the ring groove 2 is communicated with the inner cavity of the shell 1, and the diameter of the inner cavity of the ring groove 2 is larger than that of the inner cavity of the shell 1; the upper edge of the ring groove 2 is provided with a receiving cover 10, as shown in fig. 6, 7 and 8, the middle part of the receiving cover 10 is provided with a central hole 101, the central axis of the central hole 101 is matched with the central axis of the inner cavity of the shell 1, the upper surface of the receiving cover 10 outside the central hole 101 is provided with a water passing cover placing ring table 102, the water passing cover placing ring table 102 is provided with a water passing cover 11, the water passing cover 11 is provided with a water passing hole 111, and when the floor drain is used, sewage on the ground flows into the cavity of the shell 1 through the water passing hole 111 on the water passing cover 11.

The lower plate surface of the bearing cover 10 is fixedly provided with a guide convex ring 103, the guide convex ring 103 is inserted into the cavity of the annular groove 2, and the guide convex ring 103 coincides with the central axis of the central hole 101 of the bearing cover 10.

An upper sealing cover 5 is arranged in the cavity of the annular groove 2, the upper plate surface of the upper sealing cover 5 is flush with the upper end of the annular groove 2, the outer diameter of the upper sealing cover 5 is the same as the inner diameter of the annular groove 2, the upper sealing cover 5 is always covered in the annular groove 2 in the construction process of floor pouring, sundries are prevented from entering the cavity of the shell 1, and the upper sealing cover 5 is taken out and thrown away in the construction process of a waterproof layer, so that the waterproof material is extended and wrapped on the inner wall of the annular groove 2; the upper opening of the fixed water seal pipe 6 is provided with a middle sealing cover 61, the middle sealing cover 61 is always covered on the fixed water seal pipe 6 in the processes of floor pouring, waterproof layer construction and floor tile laying, and the middle sealing cover 61 is taken out and thrown away when the bearing cover 10 is installed and enters normal use; the lower mouth department of drain pipe 8 be equipped with down closing cap 81, the lower face of closing cap 81 flushes with the lower face of holding ring 31 down, the external diameter of closing cap 81 is the same with the internal diameter of urceolus 3 down, at the in-process of floor pouring, the closing cap 81 sets up in urceolus 3 intracavity all the time, prevent the mud that concrete placement in-process produced and get into urceolus 3 intracavity, when the wooden form of floor pouring usefulness demolishs, the wooden form breaks off the fixed block 32 from holding ring 31 off the fingers and thumb and demolishs, again follow drain pipe 8 top with lower closing cap 81 ejecting can, guarantee that urceolus 3 intracavity and drain pipe 8's outer wall are clean, the grafting installation of downcomer 9 of being convenient for.

The pull handle 51 is fixedly arranged on the upper plate surface of the upper sealing cover 5, so that the upper sealing cover 5 can be conveniently taken out.

The outer side wall of the outer cylinder 3 is uniformly and fixedly provided with 3-4 lower reinforcing plates 34, the upper ends of the lower reinforcing plates 34 are fixedly connected with the outer wall of the bottom plate of the shell 1, and the lower ends of the lower reinforcing plates 34 are fixedly connected with the positioning rings 31, so that the overall strength is improved.

The upper end of the outer wall of the shell 1 is uniformly and fixedly provided with 3-4 upper reinforcing plates 4, the upper ends of the upper reinforcing plates 4 are fixedly connected with the bottom plate surface of the ring groove 2, the middle part of the upper reinforcing plates 4 is provided with positioning holes 41, and the upper reinforcing plates are fixedly connected with reinforcing steel bars supported on a wood formwork through binding wires passing through the positioning holes 41, so that the upper reinforcing plates play a role in righting and fixing, and the upper reinforcing plates are prevented from being inclined in the concrete pouring process.

The number of the fixing blocks 32 is 3-4, and the fixing blocks are uniformly distributed and fixedly arranged on the peripheral side wall of the positioning ring 31.

The diameter of the inner cavity of the ring groove 2 is 2-4 cm larger than that of the inner cavity of the shell 1; an everting edge 21 is fixedly arranged at the upper opening edge of the ring groove 2; the height from the bottom surface of the positioning ring 31 to the upper end surface of the ring groove 2 is 10-14 cm, and the thickness of the positioning ring is the same as that of the cast-in-situ floor, when the floor is waterproof, the waterproof material needs to be extended into the cavity of the ring groove 2 and attached to the inner wall of the cavity of the ring groove 2, so that the water on the floor can flow into the cavity of the ring groove 2, the effectiveness of the ground waterproof layer is ensured, and no leakage phenomenon occurs.

The water seal cylinder 7 consists of a cylinder 71, a sealing cover and supporting legs 72, wherein 3-6 supporting legs 72 are uniformly distributed and fixedly arranged on the lower opening edge of the cylinder 71, and the sealing cover is fixedly arranged at the upper end of the cylinder 71.

The sealing cover is a cambered surface sealing cover 73, as shown in fig. 4 and 5, a spiral vane 74 is arranged on the outer wall of the cambered surface sealing cover 73, when sewage enters the cavity of the shell 1 through the water through hole 111 of the water through cover 11, the sewage can directly fall on the cambered surface sealing cover 73 to drive the spiral vane 74, so that the water seal cylinder 7 rotates, and the supporting feet 72 can stir sediment at the bottom of the inner cavity of the shell 1 to be discharged along with water flow, thereby preventing water blockage.

The number of the spiral blades 74 is 3 to 5, and the spiral blades are uniformly distributed on the outer wall of the cambered surface sealing cover 73.

As an improvement, the sealing cover of the water seal cylinder 7 is a plane sealing cover.

When the water-draining cover 11 is used for draining water of a washing machine, as shown in fig. 9, the middle part of the water-draining cover 11 is provided with a water-draining pipe jack 112 of the washing machine, and the pipe orifice of the water-draining pipe of the washing machine is inserted into the water-draining pipe jack 112 of the washing machine.

When the basin drainage or vegetable basin drainage is used, as shown in fig. 10, the basin drainage pipe socket joint 113 is fixedly arranged in the basin drainage pipe insertion hole 112 in the middle of the water passing cover 11, the lower end of the basin drainage pipe socket joint 113 penetrates through the basin drainage pipe insertion hole 112 in the middle of the water passing cover 11 and is fixed by a nut, and the lower opening of the basin drainage pipe or vegetable basin drainage pipe is inserted into the upper opening of the basin drainage pipe socket joint 113, so that the basin drainage effect can be achieved, and the deodorization effect can be achieved.

In the production of the present utility model, as shown in fig. 3, the housing 1, the ring groove 2, the upper reinforcing plate 4, the fixed water seal pipe 6, the drain pipe 8, the outer cylinder 3, the fixing block 32 and the lower reinforcing plate 34 are integrally produced.

When the utility model is installed, the utility model is installed according to the floor drain position, the washing machine drainage position, the wash basin drainage position and the vegetable basin drainage position.

The installation and construction process of the utility model is as follows:

(1) After erecting the wood templates and binding the reinforcing steel bars, positioning the installation position of the utility model according to the floor drain position, the washing machine drainage position, the wash basin drainage position and the vegetable basin drainage position; firstly, a lower sealing cover 81 is covered in the lower opening edge of the outer cylinder 3, a middle sealing cover 61 is covered at the upper opening of the fixed water seal pipe 6, and an upper sealing cover 5 is covered in the upper opening edge of the ring groove 2; the positioning ring 31 is flatly paved on a wood template, and is fixedly connected with the wood template after passing through the fixing holes 35 of the fixing blocks 32 by using screws, and then is fixedly connected with peripheral steel bars after passing through the positioning holes 41 of the upper reinforcing plate 4 by using binding wires, so that the shell 1 is firmly fixed on the wood template;

(2) Pouring floor concrete, wherein the thickness of the concrete is preferably flush with the upper end of the ring groove 2; because the upper sealing cover 5 is covered in the upper opening edge of the ring groove 2, the concrete cannot fall into the cavity of the ring groove 2; because the lower sealing cover 81 is covered in the lower opening edge of the outer cylinder 3, concrete slurry cannot flow into the cavity of the outer cylinder 3; when the wood template is disassembled, the wood template is broken off by the way to break the groove 33, and the fixing block 32 falls down along with the groove;

(3) When a waterproof layer is manufactured on the floor, the upper sealing cover 5 is taken out and discarded, so that the waterproof material stretches into the cavity of the annular groove 2 and is attached to the inner wall of the annular groove 2, and thus, the water in the whole house can flow into the cavity of the annular groove 2;

(4) When laying floor tiles, leaving a mounting opening of the bearing cover 10 at the position of the ring groove 2, mounting the bearing cover 10, and cleaning sundries falling into the cavity of the shell 1; placing an adaptive water passing cover 11 on the receiving cover 10; if the floor drain is used, a water passing cover 11 with only water passing holes 111 is selected; if the washing machine is used for draining, the water cover 11 with the drain pipe jack 112 of the washing machine is selected; if the basin or vegetable basin is used for draining, the water cover 11 with the basin drain pipe socket joint nipple 113 is selected;

(5) When the sewer pipe 9 is installed, the middle sealing cover 61 on the fixed water seal pipe 6 is opened, the lower sealing cover 81 at the lower end of the outer cylinder 3 is ejected out by a wood stick, and the upper end of the sewer pipe 9 is inserted into the annular cavity between the outer cylinder 3 and the drain pipe 8; after the sewer pipe 9 is installed, the middle sealing cover 61 is covered on the fixed water sealing pipe 6 to prevent sundries from falling into the sewer pipe 9; when the water seal pipe is normally used, the middle sealing cover 61 on the fixed water seal pipe 6 is taken out.

Claims (10)

1. The utility model provides a pre-buried split type multipurpose building drainage device, including casing (1), urceolus (3), fixed water seal pipe (6) and water seal section of thick bamboo (7), fixed water seal pipe (6) are fixed to be set up in the bottom of casing (1) intracavity, water seal section of thick bamboo (7) set up in casing (1) intracavity to cover and establish on fixed water seal pipe (6), the inner chamber of fixed water seal pipe (6) is linked together with the inner chamber of water seal pipe (7), the inner chamber of casing (1), urceolus (3) are fixed to be set up on the bottom plate outer wall of casing (1); the method is characterized in that: a drain pipe (8) is fixedly arranged on the outer wall of the bottom plate of the shell (1) in the cavity of the outer cylinder (3), and the inner cavity of the drain pipe (8) is communicated with the inner cavity of the fixed water seal pipe (6); a positioning ring (31) is fixedly arranged at the lower end of the outer cylinder (3), a fixed block (32) is fixedly arranged on the peripheral side wall of the positioning ring (31), a breaking groove (33) is formed at the joint of the fixed block (32) and the positioning ring (31), and a fixed hole (35) is formed in the fixed block (32); the upper end of the shell (1) is fixedly provided with a ring groove (2), the inner cavity of the ring groove (2) is communicated with the inner cavity of the shell (1), and the diameter of the inner cavity of the ring groove (2) is larger than that of the inner cavity of the shell (1); the upper opening edge top of annular (2) be equipped with and accept lid (10), the middle part of accepting lid (10) is equipped with centre bore (101), the central axis looks adaptation of central axis and casing (1) inner chamber of centre bore (101), be equipped with on the face of going up of accepting lid (10) in the centre bore (101) outside and lead to water lid and place ring platform (102), be equipped with on the ring platform (102) and lead to water lid (11), water lid (11) on be equipped with water hole (111).

2. A pre-buried split type multipurpose building drainage device according to claim 1, characterized in that: the lower plate surface of the bearing cover (10) is fixedly provided with a guide convex ring (103), the guide convex ring (103) is inserted into the cavity of the annular groove (2), and the guide convex ring (103) coincides with the central axis of the central hole (101) of the bearing cover (10).

3. A pre-buried split type multipurpose building drainage device according to claim 1, characterized in that: an upper sealing cover (5) is arranged in the cavity of the annular groove (2), the upper plate surface of the upper sealing cover (5) is flush with the upper end of the annular groove (2), and the outer diameter of the upper sealing cover (5) is the same as the inner diameter of the annular groove (2); a middle sealing cover (61) is arranged at the upper opening of the fixed water sealing pipe (6); the lower opening of the drain pipe (8) is provided with a lower sealing cover (81), the lower plate surface of the lower sealing cover (81) is flush with the lower plate surface of the positioning ring (31), and the outer diameter of the lower sealing cover (81) is the same as the inner diameter of the outer cylinder (3).

4. A pre-buried split type multipurpose building drainage device according to claim 1, characterized in that: 3-4 lower reinforcing plates (34) are uniformly distributed and fixedly arranged on the outer side wall of the outer cylinder (3), the upper ends of the lower reinforcing plates (34) are fixedly connected with the outer wall of the bottom plate of the shell (1), and the lower ends of the lower reinforcing plates (34) are fixedly connected with the positioning ring (31); the upper end of the outer wall of the shell (1) is uniformly and fixedly provided with 3-4 upper reinforcing plates (4), the upper ends of the upper reinforcing plates (4) are fixedly connected with the bottom plate surface of the ring groove (2), and the middle part of the upper reinforcing plates (4) is provided with positioning holes (41).

5. A pre-buried split type multipurpose building drainage device according to claim 1, characterized in that: the number of the fixing blocks (32) is 3-4, and the fixing blocks are uniformly distributed and fixedly arranged on the peripheral side wall of the positioning ring (31).

6. A pre-buried split type multipurpose building drainage device according to claim 1, characterized in that: the diameter of the inner cavity of the ring groove (2) is 2-4 cm larger than that of the inner cavity of the shell (1); an everting edge (21) is fixedly arranged at the upper opening edge of the ring groove (2); the height from the bottom surface of the positioning ring (31) to the upper end surface of the ring groove (2) is 10-14 cm.

7. A pre-buried split type multipurpose building drainage device according to claim 1, characterized in that: the water seal cylinder (7) consists of a cylinder body (71), a sealing cover and supporting legs (72), wherein 3-6 supporting legs (72) are uniformly distributed and fixedly arranged on the lower opening edge of the cylinder body (71), and the sealing cover is fixedly arranged at the upper end of the cylinder body (71).

8. The pre-buried split type multipurpose building drainage device according to claim 7, wherein: the sealing cover is a cambered surface sealing cover (73), and a spiral blade (74) is arranged on the outer wall of the cambered surface sealing cover (73); the number of the spiral blades (74) is 3-5, and the spiral blades are uniformly distributed on the outer wall of the cambered surface sealing cover (73).

9. A pre-buried split type multipurpose building drainage device according to claim 1, characterized in that: the middle part of the water passing cover (11) is provided with a water draining pipe jack (112) of the washing machine.

10. The pre-buried split type multipurpose building drainage device according to claim 9, wherein: the washing machine drain pipe jack (112) in the middle of the water through cover (11) is internally and fixedly provided with a wash basin drain pipe socket nipple (113), and the lower end of the wash basin drain pipe socket nipple (113) penetrates through the washing machine drain pipe jack (112) in the middle of the water through cover (11) and is fixed by a nut.