KR101054170B1 - Drainage trap and drain trap with sink - Google Patents

Abstract

The leak-proof packing of the present invention includes a first seal portion located between the bottom of the cleaning tank and the flange portion of the fixing cap; And a second seal portion extending downward from an inner circumferential surface of the first seal portion and positioned between the drain trap body and the fixed cap body, wherein an angle between the first seal portion and the second seal portion is smaller than 90 degrees. A protrusion is formed along an upper end of the inner circumferential surface of the drain trap body to prevent the second seal portion from sagging toward the coupling portion of the female screw portion and the male screw portion when the female screw portion and the male screw portion are coupled to each other.

Therefore, the present invention can seal the gap between the bottom surface of the washing tank and the flange portion by the first seal portion of the packing, and effectively seal the gap between the drain trap body and the fixing cap body, as well as the fixing cap. It can be easily and firmly combined without any obstacle to the drain trap body.

1st seal part, 2nd seal part, frictional force, packing

Description

PACKING FOR SEAL AND DRAIN TRAP OF SINK UNIT}

The present invention relates to a drain trap, and more particularly, to a leak-proof packing and a sink trap having the packing, which can be easily and firmly combined with a seal cap and can easily and securely fix the cap to the drain trap body. .

In general, the sink is installed in the kitchen, it is used for various purposes such as washing dishes or washing fruits or vegetables.

The sink is formed with a washing tank called a sink having a space for storing water for washing dishes, fruits, and vegetables, and a drainage hole is formed at the bottom of the washing tank to drain the washing water. The apparatus is connected, and the washing tank is formed with a water level drainage hole for preventing water from overflowing from the washing tank. The drainage device serves to filter food waste and discharge waste, as well as block odor backflow.

Patent Application No. 2006-0028390 discloses a "drain for drain sink" bar 1 is a longitudinal cross-sectional view showing a conventional drain trap.

Referring to FIG. 1, a conventional drainage device 10 includes a packing 12 provided on upper and lower surfaces of a drain hole 4 of a sink body 2; A fixing plate 14 inserted downward from an upper portion of the drainage hole 4; It is composed of a drain body 16 is screwed to the fixing plate (14).

In the conventional drainage device 10 configured as described above, a fine gap is formed at the connection portion between the fixing plate 14 and the packing 12, and the food waste of fine size is continuously sandwiched between the gaps, and the odor is caused by the food waste. There was a problem that occurred.

In addition, Utility Model Application No. 2005-0006138 discloses a "sink trap drain trap packing structure", Figure 2 is a longitudinal cross-sectional view showing another conventional drain trap.

Referring to FIG. 2, in the conventional sink trap packing coupling structure, the drain hole 4 formed in the center of the bottom surface of the sink 2 of the sink is fixed to the drain hole 4 through the fixing cap 21. Drain trap 22, which is installed and used to filter out the waste and drain the waste water to the outside, and packing between the top of the drain trap 22 and the bottom of the washing tank (2) to maintain the tightness of the coupling site (23) In the sink drain trap consisting of), the locking projection 24 is protruded in the middle of the upper end of the drain trap 22, and the packing 23 is inserted into the upper end of the locking projection 24 is provided, Insertion grooves 27 are formed in the middle of the lower end of the packing 23, and the left and right wall surfaces 25 are formed on the left and right sides of the insertion grooves 27 so that the packing 23 does not flow left and right in the locking protrusion 24, The contact protrusion 26 is integrally spaced at the top of the packing 23. Is formed.

However, in the conventional sink drain trap packing coupling structure, there is a problem that food is still stuck in the gap between the packing and the fixing cap, causing a bad smell, there is a gap between the washing tank and the fixing cap and leaks into the gap. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and seals the gap between the bottom of the cleaning tank and the flange portion by the first seal portion of the packing, and effectively seals the gap between the drain trap body and the fixed cap body. In addition, the purpose of the present invention is to provide a leakage preventing packing and a drain trap of the sink having the packing, which can easily and firmly combine the fixing cap without any obstacle to the drain trap body by reducing friction of the packing against the fixing cap. have.

In order to achieve the above object, the drain trap of the sink according to the present invention is located at the bottom of the drain hole formed in the bottom surface of the washing tank of the sink to filter out the waste that is disposed through the drain, discharge the waste water, and internally thread the inner thread. Drainage trap main body is formed; And a male flange portion inserted into the drain hole and having an upper flange portion engaged with the bottom of the washing tub around the drain hole and formed on an outer circumferential surface of the lower fixing cap main body in combination with the female screw portion to adjust the position of the drain trap body. And a fixing cap fixed thereto, wherein the first seal portion is disposed between the bottom of the washing tub and the flange portion, and extends downwardly from an inner circumferential surface of the first seal portion, between the drain trap body and the fixing cap body. It includes a packing consisting of a second seal portion located in, the angle between the first seal portion and the second seal portion is formed smaller than 90 degrees, the projection is formed along the upper end of the inner peripheral surface of the drain trap body.

On the other hand, the leakage preventing packing (packing or gasket) according to the present invention is located in the bottom of the drain hole formed in the bottom surface of the washing tank of the sink to filter the waste discarded through the drain, discharge the waste water, and add a female screw on the inner peripheral surface A drain trap body formed; And a male flange portion inserted into the drain hole and having an upper flange portion engaged with the bottom of the washing tub around the drain hole and formed on an outer circumferential surface of the lower fixing cap main body in combination with the female screw portion to adjust the position of the drain trap body. A drainage trap of a sink comprising: a first seal portion located between the bottom surface of the cleaning tank and a flange portion of the fixing cap; And a second seal portion extending downward from an inner circumferential surface of the first seal portion and positioned between the drain trap body and the fixed cap body, wherein an angle between the first seal portion and the second seal portion is greater than 90 degrees. It is formed small and a projection is formed along the upper end of the inner peripheral surface of the drain trap body to prevent the second seal portion from sagging toward the coupling portion of the female screw portion and the male screw portion when the female screw portion and the male screw portion are coupled.

The protrusion prevents the second seal portion from sagging toward the coupling portion of the female screw portion and the male screw portion when the female screw portion and the male screw portion are coupled to each other, increases the frictional force with the second seal portion, and moves the packing. Or flow).

The first seal portion has a flat shape, the second seal portion has a triangular shape, and the end of the second seal portion has an inclined surface in contact with the protrusion.

The second seal portion is maintained at 70-73 degrees with respect to the first seal portion before coupling the female screw portion and the male thread portion, and the second seal portion is coupled with the first seal portion based on the first seal portion after coupling the female screw portion and the male screw portion. It can be maintained at 79-86 degrees by the close contact of the drain trap body and the fixing cap.

The horizontal width of the second seal portion may be maintained at 1.5 mm before the female screw portion and the male screw portion are coupled, and the horizontal width of the second seal portion may be maintained at 1.2 mm after the female thread portion and the male screw portion are coupled. .

As described above, the present invention can seal the gap between the bottom of the cleaning tank and the flange portion by the first seal portion of the packing, and can effectively seal the gap between the drain trap body and the fixed cap body. Of course, by maintaining the second seal portion of the packing in an appropriate shape and angle there is an effect that can be easily and firmly coupled to the fixing cap without any obstacle to the drain trap body.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the drain trap of the sink according to the preferred embodiment of the present invention and the leakage preventing packing of the drain trap.

Figure 3 is an exploded perspective view showing a drain trap according to the invention, Figure 4 is a perspective view showing a drain trap according to the invention, Figure 5 is a perspective view showing a drain trap body according to the invention, Figure 6 is a fixed cap according to the present invention And a perspective view showing the packing, and Figure 7 is a longitudinal sectional view showing a drain trap according to the present invention.

Referring to the drawings, the drain trap 100 of the sink according to the present invention is located below the drain hole 4 formed in the center of the bottom surface 3 of the washing tank 2 of the sink 1 through the drain hole 4. A waste trap body 110 for filtering the waste to be discarded and discharging the waste water, and having an internal threaded portion 111 formed on an inner circumferential surface thereof; And a flange portion 122 of the upper portion is inserted into the drain hole 4, and is held in the bottom surface 3 of the washing tub 2 around the drain hole 4, and the lower portion of the fixing cap body 121 is fixed. The male screw portion 123 formed on the outer circumferential surface thereof is fixed to the female screw portion 111 and a fixing cap 120 for fixing the position of the drain trap body 110.

Further, the drain trap 100 of the sink according to the present invention includes a first seal portion 131 positioned between the bottom surface 3 of the cleaning bath 2 and the flange portion 122, and the first seal portion ( And a packing 130 formed downwardly extending from an inner circumferential surface of the 131 and including a second seal portion 132 positioned between the drain trap body 110 and the fixing cap body 110.

An angle θ between the first seal part 131 and the second seal part 132 is smaller than 90 degrees, and a protrusion 113 is formed along an upper end of an inner circumferential surface of the drain trap body 110. . Reference numeral H3 denotes a one-touch over groove (see FIG. 6).

Hereinafter, the configuration of the drain trap 100 of the sink according to the present invention will be described in more detail.

Typically, the sink 1 is provided with a plurality of washing tanks 2, and a drain 4 is formed in the center of the bottom surface 3 of the washing tank 2.

The drain trap body 110 is disposed below the drain hole 4 to filter out waste that is disposed through the drain hole 4 and discharge the waste water.

A main hose H1 is connected to the lower portion of the drain trap body 110, and a sub hose H2 is connected to a side of the drain trap body 110. The sub hose H2 is connected to the washing tank 2 to prevent the washing tank 2 from overflowing with water. An internal thread portion 111 is formed on an inner circumferential surface of the drain trap body 110.

The fixing cap 120 is inserted into the drain hole 4, and the flange portion 122 is held in the washing tank 2 bottom surface 3 around the drain hole 4. The male screw portion 123 formed on the outer circumferential surface of the cap body 121 is coupled to the female screw portion 111 to fix the position of the drain trap body 110. The fixing cap 120 is covered with a cover (C).

A gap is generated between the bottom surface 3 of the cleaning tub 2 and the flange portion 122 and between the drain trap body 110 and the fixed cap body 110 so that the gap can be sealed by sealing the gap. The present invention includes a packing 130 including a first seal portion 131 and a second seal portion 132 extending downward from an inner circumferential surface of the first seal portion 131. Here, the angle θ between the first seal portion 131 and the second seal portion 132 is smaller than 90 degrees. In addition, the protrusion 113 is integrally formed along the upper end of the inner circumferential surface of the drain trap body 110.

More specifically, the leakage preventing packing 130 according to the present invention is a first seal portion 131 located between the bottom surface (3) of the cleaning tank (2) and the flange portion 122 of the fixing cap 120 ); And a second seal part 13 extending downward from the inner circumferential surface of the first seal part 131 and positioned between the drain trap body 110 and the fixing cap body 121.

An angle between the first seal part 131 and the second seal part 132 is formed to be smaller than 90 degrees, and the second seal part (when the female thread part 111 and the male thread part 123 are coupled to each other). A protrusion 113 is formed along the upper end of the inner circumferential surface of the drain trap body 110 to prevent the 132 from sagging toward the coupling portion of the female thread part 111 and the male thread part 123.

The wedge-shaped protrusion 113, when the female screw portion 111 and the male screw portion 123 is coupled, the second seal portion 132 is coupled to the female screw portion 111 and the male screw portion 123. Prevents sagging toward the portion, increases friction with the second seal portion 132, and prevents movement or movement of the packing 130.

The first seal portion 131 has a flat shape, the second seal portion 132 has a triangular shape, the inclined surface of 45 degrees in contact with the protrusion 113 at the end of the second seal portion 132. 132a.

Before coupling the female thread part 111 and the male thread part 123, the second seal part 132 is maintained at 70-73 degrees based on the first seal part 131, and the female thread part 111 is After the engagement of the male thread portion 123, the second seal portion 132 is 79-86 by close contact with the drain trap body 110 and the fixing cap 120 based on the first seal portion 131. Can be maintained.

Before coupling the female threaded portion 111 and the male threaded portion 123, the horizontal width D of the second seal portion 132 is maintained at 1.5 mm, and the female threaded portion 111 and the male threaded portion ( After the engagement of the 123, the horizontal width d of the second seal portion 132 may be maintained at 1.2 mm.

8 and 9 are longitudinal cross-sectional views illustrating the technical features of the packing according to the present invention, in which the packing shown in FIG. 8 shows the packing of the present invention, and the packing shown in FIG. 9 shows an imaginary packing. will be.

First, as shown in FIG. 9, the virtual packing 130 ′ is positioned between the inner circumferential surface of the drain trap body 110 and the outer circumferential surface of the fixing cap body 121, and the female screw portion 111 and the male screw portion 123 are disposed. The fixed cap 120 is configured to be coupled to the drain trap body 110 by the bar, when the packing 130 'has a "A" shaped cross section, the packing 130' is fixed cap 120 Since the friction occurs in contact with the fixed cap 120 is difficult to rotate by coupling.

In other words, the first seal portion 131 ′ is positioned in the gap between the bottom surface 3 of the cleaning tank 3 and the flange portion 122 of the fixing cap 120, and the drain trap body 110 and the fixing cap body ( The second seal portion 132 ′ is positioned in the gap between 121 and the female seal portion 111 of the drain trap body 110 when the second seal portion 132 ′ is simply formed as “a”. Since the male portion 123 of the fixing cap 120 should be rotated to be coupled, it is difficult to couple the fixing cap 120 to the drain trap body 110 by the friction force of the packing 130 ', as well as diarrhea and the fixing cap 120. ) Is forcibly coupled to the drain trap body 110, the packing 130 'is arbitrarily deformed and the seal ring performance is significantly reduced.

In order to solve this problem, in the present invention, as shown in FIGS. 7 and 8, the packing 130 does not cause any obstacle in coupling the fixing cap 120 to the drain trap body 110 while increasing the seal ring performance. Provides a structure.

That is, in the leakage preventing packing 130 according to the present invention, the first seal part 131 and the second seal part 132 are not simply formed to have a “a” cross section in forming the packing. The angle θ is formed to be smaller than 90 degrees, and the second seal part 132 is the female thread part 111 and the male thread part when the female thread part 111 and the male thread part 123 are coupled to each other. A protrusion 113 is formed along the upper end of the inner circumferential surface of the drain trap body 110 to prevent sagging toward the engaging portion of the 123.

More specifically, rather than having the packing 130 have a simple “a” cross section, as described above, the second seal portion 132 is formed prior to the engagement of the female thread portion 111 and the male thread portion 123. The second seal part 132 is maintained at 70-73 degrees (preferably 73 degrees) with respect to the first seal part 131 and after the female thread part 111 and the male thread part 123 are coupled to each other. ) Is maintained at 79-86 degrees (preferably 77 degrees) by the close contact of the drain trap body 110 and the fixed cap body 121 with respect to the first seal portion 131. In addition, the horizontal width D of the second seal portion 132 is maintained at 1.5 mm before the female screw portion 111 and the male screw portion 123 are coupled to each other, and the female screw portion 111 and the male screw portion are maintained. After the engagement of the 123, the horizontal width d of the second seal portion 132 is maintained at 1.2 mm.

Since the inclined surface 132a of the second seal portion 132 is contacted by the protrusion 113 so that the second seal portion 132 does not fall further, the compressive force F1 acting up and down is distributed to the left and right. It is effective. That is, the second seal portion 132 of the packing 130 is elastically deformed into a finely roughly " 형 " shape while being pushed inward by the protrusion 113 (when in close contact with the outer circumferential surface of the fixed cap body) when tightened. (Not shown) to maximize the friction and sealing force of the packing 130 by its elastic deformation. This acts between the thickness t of the sink bottom 3, 0.6-0.7 mm. For example, when the diameter of the packing 130 decreases by 0.2-0.3 mm when the diameter of the packing 130 is 153 mm, the elastic force is very large and the sealability ( Watertightness) can be maximized.

Therefore, in the leakage preventing packing 130 according to the present invention configured as described above, the gap between the bottom surface 3 of the cleaning bath 2 and the flange portion 122 is sealed by the first seal portion 131 of the packing. In addition, the gap between the drain trap body 110 and the fixed cap main body 121 can be effectively sealed, as well as reducing the friction of the packing on the fixed cap, thereby fixing the fixed cap 120 to the drain trap main body ( 110 can be easily and firmly combined without any obstacles.

As such, the rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications within the scope of the claims. It is self evident.

Figure 1 is a longitudinal cross-sectional view showing a conventional drain trap

Figure 2 is a longitudinal cross-sectional view showing another conventional drain trap

Figure 3 is an exploded perspective view showing a drain trap according to the invention

4 is a perspective view showing a drain trap according to the present invention;

5 is a perspective view showing a drain trap body according to the present invention;

Figure 6 is a perspective view of the fixing cap and packing according to the present invention

Figure 7 is a longitudinal cross-sectional view showing a drain trap according to the invention

8 and 9 are longitudinal cross-sectional views illustrating the technical features of the packing according to the present invention. The packing shown in FIG. 8 shows the packing of the present invention, and the packing shown in FIG. 9 shows a virtual packing.

* Description of the main parts

1: sink

3: wash tub bottom

4: drain

110: drain trap body

111: female thread

113: turning

120: fixed cap

121: fixed cap body

122: flange

123: male section

130: packing

131: first seal part

132: second seal part

θ: angle between the first seal portion and the second seal portion

D, d: horizontal width of second seal portion

Claims (12)

Located at the bottom of the drain hole 4 formed at the center of the washing tank bottom surface 3 of the sink 1 to filter out the wastes that are disposed through the drain hole 4, and to discharge the waste water, and to the inner threaded surface 111. The drain trap body 110 is formed; And a flange portion 122 of the upper portion is inserted into the drain hole 4 to maintain a state of being caught by the washing tank bottom surface 3 around the drain hole 4 and to the outer peripheral surface of the lower fixing cap body 121. The male screw portion 123 formed is coupled to the female screw portion 111 to fix the cap 120 to fix the position of the drain trap body 110; A first seal portion 131 positioned between the washing tank bottom surface 3 and the flange portion 122, and extending downward from an inner circumferential surface of the first seal portion 131 so that the drain trap body 110 is formed; And a packing 130 including a second seal part 132 positioned between the fixing cap body 121 and An angle θ between the first seal part 131 and the second seal part 132 is smaller than 90 degrees, and a protrusion 113 is formed along an upper end of an inner circumferential surface of the drain trap body 110. Drainage trap of the sink characterized in that. The method of claim 1, The protrusion 113 is the second seal portion 132 is coupled to the coupling portion of the female screw portion 111 and the male screw portion 123 when the female screw portion 111 and the male screw portion 123 are coupled. Preventing sag, increase friction with the second seal portion 132, drain trap of the sink, characterized in that to prevent the movement of the packing (130). The method of claim 1, The first seal portion 131 has a flat shape, and the second seal portion 132 has a triangular shape, the drain trap of the sink. The method of claim 1, The drain trap of the sink, characterized in that the end of the second seal portion 132 has an inclined surface (132a) in contact with the projection (113). The method of claim 1, Before coupling the female thread part 111 and the male thread part 123, the second seal part 132 is maintained at 70-73 degrees based on the first seal part 131, and the female thread part 111 is After the engagement of the male screw portion 123, the second seal portion 132 is formed by the close contact between the drain trap body 110 and the fixing cap body 121 based on the first seal portion 131. A drain trap for a sink, characterized in that it is maintained at 86 degrees. The method of claim 1, Before coupling the female threaded portion 111 and the male threaded portion 123, the horizontal width D of the second seal portion 132 is maintained at 1.5 mm, and the female threaded portion 111 and the male threaded portion 123 are closed. ), The horizontal width d of the second seal portion 132 is maintained at 1.2 mm after the coupling. Located at the bottom of the drain hole 4 formed at the center of the washing tank bottom surface 3 of the sink 1 to filter out the wastes that are disposed through the drain hole 4, and to discharge the waste water, and to the inner threaded surface 111. The drain trap body 110 is formed; And a flange portion 122 of the upper portion is inserted into the drain hole 4 to maintain a state of being caught by the washing tank bottom surface 3 around the drain hole 4 and to the outer peripheral surface of the lower fixing cap body 121. In the male thread portion 123 is coupled to the female screw portion 111 is fixed cap 120 for fixing the position of the drain trap body 110; A first seal portion 131 positioned between the washing tank bottom surface 3 and the flange portion 122 of the fixing cap 120; And a second seal part 132 extending downward from an inner circumferential surface of the first seal part 131 and positioned between the drain trap body 110 and the fixing cap body 121. An angle θ between the first seal portion 131 and the second seal portion 132 is formed to be smaller than 90 degrees, and the second thread portion 123 and the male thread portion 123 are coupled to each other when the second seal portion 131 is formed. A protrusion 113 is formed along the upper end of the inner circumferential surface of the drain trap body 110 to prevent the seal part 132 from sagging toward the coupling portion of the female thread part 111 and the male thread part 123. Leakproof Packing. The method of claim 7, wherein The first seal part 131 has a flat shape, and the second seal part 132 has a triangular shape. The method of claim 7, wherein Leak prevention packing, characterized in that the end of the second seal portion 132 has an inclined surface (132a) in contact with the protrusion (113). The method of claim 7, wherein Before coupling the female thread part 111 and the male thread part 123, the second seal part 132 is maintained at 70-73 degrees based on the first seal part 131, and the female thread part 111 is After the engagement of the male screw portion 123, the second seal portion 132 is formed by the close contact between the drain trap body 110 and the fixing cap body 121 based on the first seal portion 131. Leak-proof packing, characterized in that it is maintained at 86 degrees. The method of claim 7, wherein Before coupling the female threaded portion 111 and the male threaded portion 123, the horizontal width D of the second seal portion 132 is maintained at 1.5 mm, and the female threaded portion 111 and the male threaded portion 123 are closed. ) After the coupling of the second seal portion 132, the horizontal width (d) of the leakage preventing packing, characterized in that maintained to 1.2mm. The method of claim 7, wherein Since the inclined surface 132a of the second seal portion 132 is contacted by the protrusion 113 so that the second seal portion 132 does not fall further, the compressive force F1 acting up and down is left and right. Distributed, The second seal portion 132 of the packing 130 is elastically deformed while being pushed inward by the protrusion 113 when being tightened (when assembled), while being in close contact with the outer circumferential surface of the fixed cap main body, Leak-proof packing, characterized in that the structure by maximizing the friction and sealing force of the packing 130.

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