KR100642314B1 - Countercurrent prevention trap for being installed at drain pipe of an apartment house - Google Patents

Abstract

A counter flow prevention trap of a sewer pipe in an apartment house is provided to prevent sewage from flowing backward from the sewer pipe by simplifying structure and accurately operating. A counter flow prevention trap of a sewer pipe includes a cylindrical body(10), an upper cover(20) combined with an upper part of the body and provided with a drain port(21), a lifting unit(30) inserted to the body and moved up and down, a float(40) attached to a lower part of the lifting unit, a couple of springs(50) installed between the body and the lifting unit to restrict the lifting unit from shaking or turning, a contact rubber(60) installed in the lifting unit to close the drain port, and a drain plug(70) having plural penetration holes installed in the drain port. The lifting unit is moved up as the float is lifted, when sewage flows upward from a sewer pipe(2). The contact rubber is moved up together with the lifting unit, so that the drain port is closed.

Description

Countercurrent prevention trap for being installed at drain pipe of an apartment house}

Figure 1 is an exploded perspective view showing the decomposition of the backflow prevention drainage of the multi-family house sewer pipe according to an embodiment of the present invention.

Figure 2 is a perspective view showing a state installed on the bottom of the reverse flow prevention drainage cut in accordance with an embodiment of the present invention.

3 is a bottom exploded perspective view of the non-return drainage according to an embodiment of the present invention.

Figure 4 is a cross-sectional view showing the inside of the cut-back drainage prevention of the multi-family house sewer pipe according to an embodiment of the present invention.

5 is a cross-sectional view showing the operating state of the non-return drainage according to an embodiment of the present invention when the sewage is introduced into the sewage pipe.

6 is a cross-sectional view showing the operating state of the backflow prevention drain according to an embodiment of the present invention when the sewage flows back from the sewage pipe.

7 is a perspective view illustrating a state in which a backflow prevention drainage apparatus according to an embodiment of the present invention is installed in a bathroom of a multi-family house.

<Description of the symbols for the main parts of the drawings>

1: bottom 2: sewer pipe

10: body 11: step

12: Spring hole 13: Extension part

14: Nut groove 15: Binding ball

16: Top 17: catch

18: Screw 20: Top cover

21: drain 22: through

23: Bolt part 30: Lifting part

31: side wall 32: protrusion

33: receiving groove 34: drainage hole

It is a lower part 36: a latch

40: buoyancy body 50: spring

60: Close contact rubber 70: Drain stopper

71: Through

The present invention relates to a backflow prevention drainage installed in a sewer pipe of a multi-family house, and more particularly, is installed above the sewage pipe in a multi-family house such as an apartment or a villa to prevent backflow of the sewage pipe from the sewage pipe to prevent backflow It is about before.

Sewerage pipes for drainage of sewage are installed on the floors and baths in the multi-unit houses, and sewage taps are installed on the upper portions of the sewer pipes to facilitate the discharge of sewage and to filter foreign substances.

In general, the installed sewage field is a structure that considers only the outflow of sewage, and when the level of the sewer is increased due to a rainy season or a typhoon, there is a problem that water cannot flow back into the sewer pipe and prevent the water from entering the interior of the apartment house through the sewage field. .

In addition, there has been disclosed a structure for preventing such a reverse flow, but due to the complexity of the structure and the lack of operation precision there was a problem that is difficult to be practical.

Therefore, the technical problem of the present invention for solving the above problems is installed in the upper part of the sewage pipes in the apartment house, such as apartments or villas to prevent the backflow of sewage from the sewer pipes, the structure of the multi-family house sewer pipe works simple and precise It is to provide a non-return drainage.

The present invention to solve the above technical problem,

The lower end is provided with a stepped inward, a plurality of spring holes are vertically drilled in the stepped, the lower part is formed with an extension for receiving the upper end of the sewer pipe, the nut groove is formed in the circumferential direction on the bottom, A cylindrical body embedded;

A drain cover is formed in the center, a pair of arc-shaped holes are formed outside the drain hole, and has a bolt portion coupled to the nut portion at a lower portion thereof, and an upper cover of a disk shape coupled to an upper portion of the main body;

A pair of arc-shaped sidewalls extend upward to be inserted into or separated from the pair of through holes, and a protrusion having a receiving groove is provided at an upper center of a lower surface thereof, and a plurality of drainage holes are drilled outwardly of the protrusion to form the main body. A lifting part inserted in close contact with and movable up and down in the inner part;

A buoyancy body attached to a lower portion of the elevating portion to induce an elevation of the elevating portion when water flows back from the sewer pipe;

A pair of springs, one side of which is fixed to a lower surface of the lifting unit and the other side of which is fixed to an upper surface of a binding hole inserted into a lower portion of the spring hole, to prevent rocking and rotation of the lifting unit;

A cylindrical contact rubber fixed to the receiving groove formed in the protruding portion to seal the drain hole when the lifting part rises due to sewage backflow; And

A drain plug installed in a drain hole formed in the center of the upper cover to filter foreign matter causing a blockage of the sewer pipe, and having a plurality of through holes formed therein; Provides backflow prevention drainage of the sewer pipes, including a.

Hereinafter, the backflow prevention drainage of the apartment house sewer pipe according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of the backflow prevention drainage of the multi-family house sewer pipe according to an embodiment of the present invention, Figure 2 is a perspective view showing a state installed on the floor is cut backflow prevention drainage according to an embodiment of the present invention, Figure 3 is a bottom exploded perspective view of the backflow prevention drainage according to an embodiment of the present invention, Figure 4 is a cross-sectional view of the backflow prevention drainage of the apartment house sewer pipe according to an embodiment of the present invention.

1 to 4, the backflow prevention drainage of the sewage pipe of the multi-family house according to an embodiment of the present invention includes a cylindrical body 10 and a drain hole 21 formed in the center of the main body 10. The upper cover 20 of the disc shape coupled to the upper portion of the), the elevating portion 30 is inserted into the main body 10 and movable up and down, and the buoyancy body attached to the lower portion of the elevating portion 30 40 and a pair of springs 50 provided between the main body 10 and the lifting unit 30 to prevent rocking and rotation of the lifting unit 30, and installed on the lifting unit 30 to ascend. And a close contact rubber 60 to seal the drain port 21 and a drain plug 70 having a plurality of through holes 71 mounted on the drain port 21.

The cylindrical main body 10 is a member embedded in the bottom, and will be described with reference to FIGS. 1 and 4, and has a stepped portion 11 formed inward at a lower end thereof, and a plurality of spring holes in the stepped portion 11. 12 is perforated vertically.

In addition, the lower portion is formed with an extension portion 13 for receiving the upper end of the sewage pipe 2, the nut groove 14 in the circumferential direction is formed on the upper surface,

As shown in FIG. 1, the upper cover 20 is a disk-shaped member, and a drain hole 21 is formed at the center thereof, and a pair of arc-shaped through holes 22 are formed outside the drain hole 21. It is.

In addition, the lower portion provided with a bolt portion 23 is coupled to the nut groove 14, it can be coupled by rotating in the upper portion of the main body (10).

The elevating part 30 is a member that is closely inserted into the main body 10 so as to be movable upward and downward, and the pair of arc-shaped sidewalls 31 extend upward to be inserted into the pair of through holes 22 as they are raised or lowered. Or separate.

In addition, the central upper surface of the lower surface is provided with a projection 32 having a receiving groove 33, a plurality of drain holes 34 are drilled outside the projection (32).

The buoyancy body 40 is a member attached to the lower portion of the elevating portion 30, and serves to induce the elevation of the elevating portion 30 when water flows back from the sewer pipe (2).

The pair of springs 50 is a member for preventing the swing and rotation of the lifting unit 30, one side is fixed to the lower surface 35 of the lifting unit 30, the other side is a spring hole ( It is fixed to the upper surface 16 of the binding hole 15 inserted in the lower part of 12). The binding hole 15 is fixed to the lower portion of the spring hole 12 with a screw 18.

Locking holes 36 and 17 are respectively provided on the lower surface 35 of the elevating portion 30 and the upper surface 16 of the binding port 15, so that both ends of the spring 50 are respectively latched. (36,17).

The close contact rubber 60 is a cylindrical member having a screw formed on the outer peripheral surface of the lower portion, is inserted into the receiving groove 33 formed in the protrusion 32 is fixed when the lifting unit 30 is raised by the sewage backflow The drain port 21 is sealed. A screw is formed on the outer circumferential surface of the lower portion of the contact rubber 60, and a screw is formed on the inner circumferential surface of the accommodation groove 33, so that the contact rubber 60 may be screwed to the accommodation groove 33. .

The drain plug 70 is a disk member formed with a plurality of through holes 71, is installed in the drain port 21 formed in the center of the upper cover 20 serves to filter foreign matter causing the blockage of the sewer pipe (2).

Figure 5 is a cross-sectional view showing the operating state of the backflow prevention drainage according to an embodiment of the present invention when the sewage flows into the sewage pipe, Figure 6 is an embodiment of the present invention when the sewage flows back from the sewage pipe FIG. 7 is a cross-sectional view illustrating an operating state of the non-return drainage device according to the present invention, and FIG.

Looking at the operation of the backflow prevention drainage according to an embodiment of the present invention with reference to Figures 5 to 7 as follows.

First, the state when sewage does not flow is the same as FIG.

When the sewage flows from the upper portion before the backflow prevention drainage according to an embodiment of the present invention, the sewage flows downward through the drain plug 70 installed in the drainage port 21 as shown in FIG. Pass through the drainage hole 34 and down to the sewer (2).

However, when the sewage flows back from the sewage pipe 2 to the upper portion, as shown in FIG. 6, the buoyancy body 40 is supported. When the buoyancy body 40 is raised, the lifting portion 30 is also accordingly supported. Will rise up together. At this time, since the spring 50 prevents the left and right rocking and rotation of the lifting unit 30 by the elastic force, the lifting unit 30 can rise upward at a predetermined position. When the lifting unit 30 rises in this way, the close contact rubber 60 coupled to the lifting unit 30 also rises up to press the drain port 21 to seal it.

At the same time, the side wall 31 of the elevating portion 30 rises upward through the arc-shaped through hole 22 of the upper cover 20, which allows the occupant to visually check the state of the reverse flow. Thus, the sewage that had flowed back could no longer flow out and the occupant could visually confirm that the sewage was flowing back so that the necessary action could be taken.

As described above, according to the reverse flow prevention drainage of the sewage pipe of the present invention, it is installed above the sewage pipe in the apartment house such as an apartment or a villa to prevent the sewage backflow from the sewage pipe, and its structure is simple and precisely operated. There is.

Claims (1)

The lower end is provided with a step 11 formed inward, and a plurality of spring holes 12 are vertically drilled in the step 11, and an extension part 13 is formed at the bottom to receive the upper end of the sewer pipe 2. It is formed, the nut groove 14 is formed in the circumferential direction on the top surface, the cylindrical body 10 is buried in the bottom; A drain hole 21 is formed in the center, and a pair of arc-shaped through holes 22 are formed on the outside of the drain hole 21, and having a bolt part 23 coupled to the nut part 14 at a lower part thereof. An upper cover 20 of a disc shape coupled to the upper portion of the main body 10; A pair of arc-shaped side walls 31 extends upwardly so as to be inserted into or separated from the pair of through holes 22, and a protrusion 32 having a receiving groove 33 is provided at the upper center of the lower surface, and the protrusion ( A plurality of lifting holes 30 drilled to the outside of the 32 and inserted into the main body 10 so as to be movable in a vertical direction; A buoyancy body 40 attached to the lower part of the elevating portion 30 to induce an elevation of the elevating portion 30 when water flows back from the sewage pipe 2; One side is fixed to the lower surface 35 of the lifting unit 30, the other side is fixed to the upper surface 16 of the binding hole 15 is inserted into the lower portion of the spring hole 12, the lifting unit 30 A pair of springs (50) to prevent rocking and rotation of; A cylindrical contact rubber (60) inserted and fixed in the receiving groove (33) formed in the protruding portion (32) to seal the drain hole (21) when the lifting portion (30) rises due to sewage backflow; And A drain plug 70 installed in a drain hole 21 formed at the center of the upper cover 20 to filter foreign matter causing the blockage of the sewer pipe 2, and having a plurality of through holes 71 formed therein; Backflow prevention drainage of the apartment house sewer pipe, including.

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