KR200482529Y1 - A draining trap - Google Patents

Abstract

The present invention relates to a drainage trap having a malodor backflow preventive function, and its object is to selectively open and close the drainage induction pail so that residues remaining in the drainage pail are not evaporated without leaving water on the floor of the room for a long period of time So that it is possible to fundamentally prevent the odor and pest of the drain pipe from flowing into the room (reverse flow).
For this purpose, according to the present invention, "drain trap with odor backflow prevention function" A drainage trap body 100 is formed at the center so that the drainage pipe P is inserted into the drainage pipe P and the drainage trap body 110 extends downward and the upper surface thereof is inclined downward from the edge toward the center. A drainage retainer 300 installed at a bottom of the drainage trap main body 100 so as to be detachable from the bottom of the main body 100 of the drainage trap body 110 and having a predetermined height of water filled therein and having a drainage window 330 formed therein, ; The upper end portion 410 is assembled into the inner wall of the barrel-coupling opening 110 of the drain trap main body 100 in a threaded manner and the lower end portion 420 is assembled to the inner surface of the drain- A drainage induction cylinder 400 extending to an inner center; And is disposed upwardly and downwardly on the bottom of the drain canister 300 so that the lower end 420 of the drain guide can be selectively opened and closed by the load of the drain water discharged thereupon through the elastic member 600 Back check valve (500) elastically supported by the check valve (500); .

Description

A drainage trap with odor backflow prevention function {A DRAINING TRAP}

The present invention relates to drainage traps; More particularly, the present invention relates to a drain trap provided with a malodor backflow preventive function, which is disposed on the floor of a bathroom (a bathroom) or a veranda to guide water out through a drain pipe while preventing a malodor of the drain pipe from flowing.

Generally, a water collecting tank is installed to collect various kinds of sewage discharged from not only common houses such as multi-family houses and apartments but also households. The bottom of each family bathroom or veranda and the collecting tank are connected through a water pipe (drain pipe) have. In such a drain pipe, a large amount of water and dirt, such as toilet and bathtubs around the living room, together with the odor (odor) can flow backward. In order to prevent backflow of odor (odor) The drain trap is installed.

1, a conventional drain trap is provided with a drain trap body 1 which is installed directly above a drain pipe P and is provided with a through hole 2 at the center thereof, (2) of the drain trap main body (1), a drainage residual tube (3) which is detachably attached to the coupling hole (2) while remaining lower and filled with water of a predetermined height, And a drain hole 5a which is installed so as to cover the upper part of the drain trap main body 1 and which covers the entire upper part of the drain trap main body 1, And is provided with a perforated needle cover 5. The water is collected in the central portion of the drain trap main body 1 through the drain holes 5a of the filter cover 5 and passes through the drain guide tube 4 and is then discharged to the drain pan (See arrow direction in Fig. 1) through the drain pipe 3a. In the drainage process, dirt such as hair is firstly filtered by the filter cover 5 and is also filtered inside the drainage induction tube 4 and the drainage residual tube 3. Since the bottom of the drainage retaining cylinder 3 is filled with water of a predetermined height and the lower end of the drainage inducing cylinder 4 is always kept locked, the backflow of the odor (odor) from the drainage pipe P is prevented.

However, in such a conventional drain trap structure, as shown in FIG. 2, if the wastewater remaining in the drainage remaining tube 3 evaporates, the smell of the drain pipe P may enter the room. That is, since the drainage remaining trough 3 is in direct communication with the room, if the house is vacated for a long period of time and water is not disposed on the floor of the toilet, residual wastewater at the bottom of the drainage remaining trough 3 evaporates, and the drainage remaining trough 3, Serves as an air passage by directly communicating with the inside of the water pipe (P). Therefore, the smell (odor) of the drain pipe P flows back into the room through the drainage remaining tub 3 and the drain guide pipe 4 (see the arrow direction in FIG. 2) There is a drawback that it occurs.

The present invention addresses this problem. The object of the present invention is to improve the opening and closing of the lower end of the drainage induction pipe by the load of the drained drainage so that residues are not evaporated inside the drainage trap even if water is not discarded on the floor of the house for a long time, (Drainage trap equipped with a malodor backflow prevention function) which can fundamentally prevent a pest from flowing into the room (backward flow).

The present invention for achieving this object is as follows. A drainage trap having a function of preventing bad odor backflow while being installed on the floor of a bathroom or a veranda equipped with a drain pipe and guiding drainage;

The drain trap; A drain trap body extending downward from the center and having an upper surface inclined downward from an edge toward a center of the drain trap body so as to be inserted into the drain pipe; A water drainage window which is installed to be detachable from the bottom of the drain trap body and which is filled with water of a predetermined height at the bottom of the drain trap body, And an upper end portion thereof is assembled in a threaded manner on the inner wall of the tub-engaging hole of the drain trap body, and a lower end portion thereof is extended to an inner center of the drainage remaining tube; A backflow prevention check valve disposed upwardly and downwardly on the bottom of the drainage remaining cask and elastically supported upward through an elastic member so as to selectively open and close the lower end of the drainage cuvette by the load of the drainage water drained; .

In addition, Wherein the backflow prevention check valve is formed in a dome shape whose center is convex upward, an outward flange is formed at an edge of the valve body so as to be in contact with a lower end of the water discharge guide cylinder, A plurality of horizontal retention protrusions radially extending from an outward flange of the valve body to contact the inner wall of the drainage retainer to prevent warping of the valve body; .

According to the drain trap having the malodor backflow prevention function according to the present invention constructed as described above, The backflow prevention check valve selectively opens and closes the lower end portion of the drainage inducing pail by the load of the drainage water to drain the drainage water from the drainage residual drain of the drainage trap, And the effect that the pest can be effectively prevented from flowing into the room (reverse flow). That is, if the drainage is not performed, the backflow prevention check valve is immediately lifted and lowered by the elastic supporting force of the elastic member to close the lower end portion of the drainage induction tube to shut off the communication between the room and the drainage residual tube. There is an advantage that it is possible to fundamentally block the inflow.

Further, according to the drain trap having the malodor backflow prevention function according to the present invention, The backflow prevention check valve has a plurality of horizontal retention protrusions that move up and down without distortion in the drainage retainer and have a dome-like shape at the center, so that the discharged sewage can be immediately discharged.

1 is a cross-sectional view showing a conventional inner structure of a drain trap.
2 is a view showing a process in which a malodor in a drain pipe reversely flows into a room in a conventional drain trap.
3 is an exploded perspective view showing the overall structure of a drain trap according to the present invention.
FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3, showing the internal structure of the drain trap according to the present invention.
5 and 6 show the operation state of the drain trap according to the present invention. FIG. 5 shows a state in which the check valve for backflow prevention is opened by the sewage drained. FIG. 6 shows a state in which the check valve for backflow prevention is closed .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. 3 and 4 show the construction of the drain trap according to the present invention, and FIGS. 5 and 6 show the operation state of the drain trap according to the present invention.

≪ Construction of drain trap according to the present invention >

As shown in FIGS. 3 and 4, the drain trap according to the present invention is installed in a substantially rectangular shape (not shown) so as to prevent backflow of odor while guiding drainage to the bottom of a bathroom The drain trap main body 100 comprises a drain trap main body 100 and a drain cover main body 100. The drain trap main body 100 is formed at the center of the drain trap main body 100, A drainage residual tube 300 detachably coupled to the tub-coupling member 110, a drainage assembly 300 assembled to the tub-coupling hole 110 in a screw-fitting manner, and having a lower end portion accommodated in the inner space of the drainage- And a reverse flow preventive check valve 500 disposed at the bottom of the drainage residual cylinder 300 for selectively opening and closing the lower end of the drainage induction cylinder 400. The detailed structure of each component is as follows .

The drain trap main body 100 is constructed so as to be embedded in the bottom of a bathroom (toilet) or a veranda equipped with a drain pipe P and to be connected to the drain pipe P. This is formed of a synthetic resin material, And is covered with a stainless steel cover material 120 excellent in corrosion resistance. The top surface of the drain trap body 100 is inclined downward from the edge to the center so as to facilitate drainage. The drain trap body 100 is formed at the center of the drain trap body 100 with a tube-coupling hole 110 extending downward. The tubular coupling member 110 is accommodated in the drain pipe P and a female screw 111 is formed on the inner wall of the tubular coupling member 110 to attach and detach the drainage induction cylinder 400. The reference numeral 130 denotes a stepped step formed along the upper surface edge of the drain trap main body 100, and the filtering cover 200 can be securely seated inside thereof without being shaken.

The filter cover 200 is installed so as to cover the upper surface of the drain trap main body 100, and drain holes 210 are drilled in the whole area. Accordingly, the water drained to the bottom of the bathroom or the veranda flows into the drain pipe (P) through the drain holes (210) of the filter cover (200), and dirt such as hair is primarily filtered in the inflow process. The filter cover 200 is formed by press-working a stainless steel plate having excellent corrosion resistance and is disposed inside the step jaw 130 on the upper surface of the drain trap main body 100.

The drainage retainer 300 is cup-shaped having an open top and a wall surface 310 and a bottom surface 320. The drainage retainer 300 is detachably attached to the drainage trap body 100 while extending downwardly to the barrel- . A plurality of drainage windows 330 are formed in the wall surface 310 of the drainage remaining trough 300 at a predetermined height from the bottom surface 320 so that the drainage water is drained and remains at a constant height. This structure is intended to prevent the backflow of odor from the drain pipe (P) side through the remaining water if drainage is not made any longer.

An upper end portion 410 of the drainage induction cylinder 400 is screwed into the upper end wall of the tub-coupling opening 110 and the lower end portion 420 of the drainage induction cylinder 400 is accommodated in the drainage retaining cylinder 300. The lower end 420 of the drainage inducing cylinder 400 is extended to be positioned below the drain window 330 of the drainage retaining cylinder 300 so that the water flows into the lower end portion 420 of the drainage inducing cylinder 400 in a U- So that contaminants such as hair can be filtered. As described above, odor reverse flow can be blocked by the water remaining in the bottom of the drain canister 300. In order to remove the dirt trapped in the drainage induction cylinder 400, the drainage induction cylinder 400 can be pulled out in the unwinding direction.

On the other hand, the check-back check valve 500 is mounted on the bottom of the drain canister 300 and is elastically supported upward through the elastic member 600, The lower end 420 is selectively opened and closed to fundamentally shut off the backflow of odor from the side of the water pipe P while preventing evaporation of the water remaining in the water drainage container 300. [ The backflow check valve 500 has an outward flange 512 formed at the center 511 in a dome shape convex upward and in contact with the lower end 420 of the drainage induction cylinder 400, A valve body 510 in which a coil spring 600 is disposed in the valve body 510 and a flange 512 extending radially from the flange 512 of the valve body 510 to be in contact with the inner wall of the drainage retainer 300, And a plurality of horizontal retention protrusions 520 for preventing warpage of the first and second protrusions 510 and 510. The check valve 500 is resiliently supported upward by elastic restoring force of the elastic member 600 so as to be in contact with the lower end 420 of the water discharge induction cylinder 400 to close it. On the other hand, when the drainage is completed, the lower end 420 of the drainage induction cylinder 400 is opened by pressing the check valve 500 against the backflow while the load of the sewage water absorbs the elastic force of the elastic member 600. Therefore, the discharged sewage is discharged to the drain pipe P through the drain guide pipe 400 and the drain pan 330 of the drain pan 300. The opening and closing operation of the check valve 500 is determined by the elastic force of the elastic member 600 which is held in contact with the bottom surface 320 of the drainage retainer 300.

≪ Operation of drain trap according to the present invention and description of operation effect thereof >

Next, the operation of the drain trap constructed as described above and the operation and effect of the drain trap will be described with reference to FIGS. 5 and 6. FIG.

First, when the water is drained from the bottom of a bathroom or a veranda, the drained sewage collects in the drainage trap body 400 through the drainage holes 210 of the drainage cover 200 and flows out to the drainage induction cylinder 400.

5, when the sewage flows into the water discharge induction cylinder 400, the check valve 500 is lowered while compressing the elastic member 600 by the load, and the lower end of the water discharge induction cylinder 400 420 are opened. Accordingly, the sewage is discharged to the drain pipe (P) through the drain pan (330) perforated on the wall surface (310) of the drain residual tank (300). Since the center 511 of the check valve 500 has a convex dome shape upward, drainage is smooth.

6, when the drainage is completed and most of the water in the drainage induction cylinder 400 escapes, the backflow prevention check valve 500 is raised again by the elastic restoring force of the elastic member 600 to return the outflow flange 512, Contacts the lower end 420 of the drainage induction cylinder 400 and closes it. As a result, the communication between the drain pipe (P) and the inside of the room is fundamentally blocked, so that the back odor of the side of the drain pipe (P) can not flow backward. Particularly, since the lower end of the drainage inducing cylinder 400 is shut off, the water remaining in the bottom of the drainage retaining cylinder 300 is not evaporated and is kept as it is, so that the backflow of odor from the drainage pipe P side can be blocked.

On the other hand, the backflow prevention check valve 500 operates without distortion since the horizontal retention protrusions 520 contact with the inner wall of the drainage retainer 300 to move up and down.

100. Drain trap body 110. Tongue-and-socket joint 111. Female thread
120 .. Cover material 130 .. Step chin 200 .. Filter cover
210 .. Drain hole 300 .. Drain retainer 310 .. Wall
320 .. Bottom surface 330 .. Drain 400 .. Drain guide tube
410 .. top 420 .. bottom 500 .. check valve for backflow prevention
510 .. valve body 511 .. center 512 .. outward flange
520 .. horizontal holding projection 600 .. elastic member P .. drain pipe

Claims (2)

A drain trap main body 100 which is formed at an upper portion of the drain trap main body 100 and extends downward from the edge of the drain trap main body 100 toward the center thereof so as to be inserted into a drain pipe P installed at the bottom of a bathroom or a veranda; The drainage residual vessel 300 is detachably installed at a lower portion of the drainage trap body 100 and is filled with water at a predetermined height and remains on the wall and a drainage window 330 is drilled in the wall. and; The upper end portion 410 is assembled in a screwing manner on the inner wall of the tube-coupling hole 110 of the drain trap body 100 and the lower end portion 420 is assembled into the drainage remaining tube 300 A drainage inducing cylinder 400 extending to the center of the interior of the drainage pipe 400; The drain trap having a malodor backflow prevention function while guiding drainage;
The drain trap is disposed on the bottom of the drain canister 300 so that the drain trap can be selectively lifted and lowered by a load of the drain water to selectively open and close the lower end 420 of the drain guide 400. [ Further comprising: a check valve (500) elastically supported in an upward direction through the check valve (600);
The backflow prevention check valve 500 has an outward flange 512 formed at the center of the check valve 500 so as to be convex upward and at an edge thereof to be in contact with the lower end 420 of the drainage induction cylinder 400, A valve body 510 in which the elastic member 600 is disposed; A plurality of horizontal retention protrusions 520 radially extending from the outward flange 512 of the valve body 510 to contact the inner wall of the drain retention cylinder 300 to prevent warping of the valve body 510; Wherein the drain trap has a function of preventing backflow of odor. delete

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