JP2009057694A - Drainage socket - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage socket which enables soil to be properly discharged by using a small quantity of water. <P>SOLUTION: In this drainage socket 1, a drain outlet 8 of a toilet bowl is connected to the side of an upper inflow port 4a; the side of a lower outflow port 4b is attached by being inserted into a drain pipe 9, and fixed to a floor surface F; and a constricted portion 5 for starting siphonage is formed on the side of the outflow port 4b. Downstream from the constricted portion 5, a guide channel 6 with a diameter smaller than that of the drain pipe 9 is continuously formed downward from the constricted portion 5 in such a manner as to be inclined with respect to the floor surface F. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a drain socket in which a drain outlet of a toilet bowl is connected to an upper portion and a lower portion is inserted into a drain pipe and fixed to a floor surface.

Conventionally, as disclosed in Patent Document 1, the toilet outlet is connected to the upper inlet, and the lower outlet is inserted into a drain pipe embedded in the floor and fixed to the floor. In addition, there is a drainage socket in which a throttle part for siphon activation is formed on the outlet side.
JP 2000-328633 A

Conventionally, in order to discharge filth from a toilet well with little water, (A) to quickly collect drainage to increase the speed of siphon activation, and (B) to increase the head pressure of the accumulated water and increase the siphon power. (C) It is conceivable to enhance three siphon actions such as draining water smoothly and increasing the siphon flow velocity.
For example, when the siphon activation throttle part is formed on the outlet side to activate the siphon as in the structure of the drainage socket of the above-mentioned prior art, the drainage is scattered on the downstream side of the throttle part, and the drainage is smooth. It was difficult to pull out and the siphon flow velocity did not increase.
On the other hand, if the throttle part is made small, the drainage is smoothly removed and the siphon flow speed is increased, but there is a problem that the activation speed of the siphon is decreased.
As described above, the three siphon actions of the siphon activation speed, the siphon force, and the siphon flow speed are contradictory actions. That is, the siphon activation speed can be increased by enlarging the throttling portion, but there is a problem that the drainage is difficult to smoothly drain to the downstream side of the throttling portion and the siphon flow velocity is slow. Also, if the throttle head position is lowered and the water head pressure of the accumulated water is increased to increase the siphon force, there is a problem that the drainage does not accumulate quickly and the siphon activation speed slows down. Although drainage can be drained smoothly and the siphon flow rate can be increased, there is a problem that drainage does not accumulate quickly and the startup speed of the siphon is weakened.
Therefore, there has been a demand for the emergence of a drain socket that can improve the above three siphon actions without impairing other siphon actions, and can discharge filth with less water.

An object of the present invention is to provide a drain socket that can discharge filth with less water, and the following measures have been taken to achieve at least a part of this object.
The drain socket of the present invention has a toilet outlet connected to the upper inlet side, the lower outlet side is inserted into the drain pipe and fixed to the floor surface, and the siphon is activated on the outlet side. In the drain socket in which the throttle part is formed, a guide channel having a diameter smaller than the diameter of the drain pipe is inclined downstream of the throttle part and continuously formed downward from the throttle part. This is the gist.

  In the present invention, a guide channel is provided downstream of the throttle part, and the guide channel is smaller than the diameter of the drain pipe and is inclined with respect to the floor surface and continuously formed downward from the throttle part. After the siphon occurs in the section, drainage smoothly passes through the guide channel, and the siphon flow velocity increases, and the guide channel is inclined with respect to the floor surface. The drainage hits the inner wall surface of the flow path to generate resistance, and this resistance can cause siphon downstream from the throttle portion, so that the water head pressure is increased and the siphon force is improved.

In the drain socket, the inlet and the outlet may be eccentric, and the guide channel may be inclined in the same direction as the eccentric direction of the drain socket.
In this way, since the drain socket is eccentric, the drainage is bent in the eccentric direction, and the drainage falls in the eccentric direction without falling in the direction perpendicular to the floor surface. If the direction is the same as the eccentric direction of the drain socket, the drain resistance in the guide channel downstream of the throttle portion is reduced, and the siphon flow velocity is prevented from being lowered.

Further, the present invention has a toilet outlet connected to the upper inlet side, and the lower outlet is inserted into the drain pipe and fixed to the floor surface. A drainage socket formed with a constricted portion of the drainage socket, wherein the drainage socket is bent in a flow path from the inflow port to the outflow port, and is substantially perpendicular to the downflow direction of the drainage flowing down from the outflow port. It can also be set as the structure which inclined the said aperture | diaphragm | squeeze part in the direction which becomes.
In this way, since the drain socket has a bent channel from the inlet to the outlet, the drainage flows down in the direction in which the channel is bent. Since it is tilted in a direction that is substantially perpendicular to the direction, drainage hits the throttle part perpendicularly, making it easier to collect drainage, increasing the speed of siphon activation, and draining inside the throttle part. Since it flows without resistance, drainage drains smoothly and siphon flow speed increases.

Further, the present invention has a toilet outlet connected to the upper inlet side, and the lower outlet is inserted into the drain pipe and fixed to the floor surface. A drainage socket formed with a throttle part of the drainage socket, wherein the drainage socket has a bent flow path from the inlet to the outlet, and the throttle in the same direction as the drainage direction of the drainage flowing down from the outlet. It can also be set as the structure which made the part eccentric.
In this way, since the flow rate of the drainage is slow before the siphon is activated, the drainage can hit the upper surface of the narrowed area of the wide area on the opposite side of the drainage direction in a wide range, and the drainage can be collected quickly. The speed can be increased.

Further, the present invention provides a drain socket in which a guide channel having a diameter smaller than the diameter of the drain pipe is inclined with respect to the floor surface and is continuously formed downward from the throttle portion downstream from the throttle portion. It is also possible to adopt a configuration in which the flow path leading to is bent, and the throttle portion is inclined in a direction substantially perpendicular to the flow direction of the drainage flowing down from the outlet.
In this way, after siphoning occurs in the throttle part, drainage smoothly passes through the guide flow path, and the siphon flow speed is increased, and the guide flow path is inclined with respect to the floor surface. In the guide channel, the drainage hits the inner wall surface of the channel to cause resistance, and this resistance can cause siphon downstream from the throttle, thereby increasing the water head pressure and improving the siphoning force. In addition, since the throttle part is tilted in a direction that is substantially perpendicular to the flow direction of the drainage flowing down from the outlet, the drainage hits the perpendicularly to the throttle part, making it easier to collect the drainage, and increasing the speed of activation of the siphon. In addition, since the drainage flows through the throttle portion without resistance, the drainage smoothly flows out and the siphon flow velocity is increased.

Further, the present invention provides a drain socket in which a guide channel having a diameter smaller than the diameter of the drain pipe is inclined with respect to the floor surface and is continuously formed downward from the throttle portion downstream from the throttle portion. It is also possible to adopt a configuration in which the flow path leading to is bent and the throttle portion is eccentric in the same direction as the flow direction of the drainage flowing down from the outlet.
In this way, since the flow rate of the drainage is slow before the siphon is activated, the drainage can hit the upper surface of the narrowed area of the wide area on the opposite side of the drainage direction in a wide range, and the drainage can be collected quickly. The speed can be increased.

  Next, the best mode for carrying out the present invention will be described using examples.

FIG. 1 is an enlarged vertical sectional view of a drain socket according to the first embodiment.
The drain socket 1 is integrally formed with a connecting hook 2a in the shape of a bowl whose upper surface is opened at the upper part of the main body 2 and protrudes outward at the lower end of the main body 2 so as to be a drain pipe fixing portion 2b. Are integrally formed.
A cylindrical member 3 is bonded and integrated with an adhesive on the lower end side of the main body portion 2, and the lower portion of the cylindrical member 3 is a drain pipe insertion portion 3a extending downwardly downwardly, Further, a guide portion 3b is integrally formed in a hanging shape continuously downward from the drain pipe insertion portion 3a.

A rubber packing 7 is fitted on the upper surface of the connecting hook 2a. A toilet drain 8 is inserted into the rubber packing 7 from above, and the toilet drain 8 is watertight. It is connected to the drain socket 1.
Further, the drain socket 1 is fixed to the floor surface F by tightening bolts or the like to the drain pipe fixing portion 2b. The drain socket 9 is connected to the drain pipe 9 raised in an embedded state on the floor surface F. The drainage pipe insertion part 3a is inserted therein, and the lower part of the drainage socket 1 is connected to the drainage pipe 9.

An eccentric flow path 4 is formed in the main body 2 of the drain socket 1, and the center of the outlet 4b at the lower end of the eccentric flow path 4 is illustrated with respect to the inlet 4a at the upper end of the eccentric flow path 4. It is off-centered and decentered.
Further, the inner wall of the eccentric flow path 4 is gently inclined, and an inclined drainage receiving surface 4c is formed at an upper portion thereof so as to be inclined downward from the upper side toward the left side in the figure. A drainage guide surface 4d is formed in the eccentric flow path 4 substantially vertically downward from the surface 4c. In addition, the lower end side of the drainage guide surface 4d, that is, the outlet 4b side is enlarged in a trumpet shape.

  A lower end of the drain pipe insertion part 3a is disposed below the outlet 4b, and an orifice-like throttle part 5 having a narrow inner diameter is formed at the lower end of the drain pipe insertion part 3a. The guide portion 3b is continuously and integrally formed so as to hang down from above, and the guide flow path 6 in the guide portion 3b is formed in a curved shape inclined from the upper side to the lower side to the right side in the figure.

A ring-shaped receiving surface 5a and receiving surface 5b parallel to the floor surface F are formed on the upper surface of the throttle portion 5, and the receiving surfaces 5a and 5b are subjected to drainage.
As described above, the eccentric flow path 4 formed in the main body 2 of the drain socket 1 is eccentric in the left direction in the figure from the upper side to the lower side, and connects the center of the inflow port 4a and the outflow port 4b. The axis P is inclined to the left, and in this example, the central axis P1 of the guide channel 6 below the axis P is inclined to the right so as to intersect the central axis P of the eccentric channel 4. .

Next, the flow of drainage in the drain socket 1 will be described.
The wastewater flows along with the filth and falls into the eccentric flow path 4 of the drainage socket 1 through the toilet 8, but initially the flow rate of the drainage is slow, and the drainage is a drainage receiver that is the inner peripheral surface of the eccentric flow path 4. It hits the surface 4c and flows down from the drainage receiving surface 4c along the drainage guide surface 4d. That is, at first, the waste water flows down in the direction of the arrow indicated by a in the figure. The drainage that flows down hits the receiving surfaces 5a and 5b of the throttle portion 5, drainage is accumulated above the receiving surfaces 5a and 5b, and the siphon is activated when the eccentric flow path 4 is filled with the drainage.

That is, at first, drainage flows down by the flow of the arrow indicated by a in the figure, but after the siphon is activated, the flow rate of the drainage increases, and the drainage is inclined in the eccentric direction of the eccentric channel 4 as indicated by b in the figure. In the state filled with the drainage, the flow of the eccentric channel 4 flows while being bent in the eccentric direction, and the drainage hits the inner wall of the guide channel 6 with a flow as shown in FIG. Some resistance is generated, and siphon is generated also in the guide flow path 6 below the throttle portion 5.
As a result, the height of the drainage above the guide channel 6, i.e., the water head pressure, increases, thereby improving the siphoning force as compared with the conventional case.

Further, since the drainage is drained downstream along the guide channel 6, the drainage is less likely to be scattered and disturbed below the throttle portion 5, and the siphon flow rate is increased, and the drainage can be smoothly drained. It will be possible.
In addition, if the height position of the throttle part 5 is set to be the same as the conventional one, the volume of drainage accumulated above the throttle part 5 is the same as that of the conventional drain socket, so the siphon activation speed is the same as the conventional one. In this example, the head pressure can be further increased to increase the siphon force, and the drainage can be well guided downstream of the throttle portion 5 through the guide channel 6 to smoothly drain the siphon. The flow rate can be increased. For this reason, even with a small amount of water, waste can be drained well.

Even when the main body 2 of the drain socket 1 is a substantially vertical flow path without eccentricity, if the guide flow path 6 is tilted with respect to the floor surface F, the drainage is conducted in the tilted guide flow path 6. Due to the resistance, the siphon can be raised downstream from the throttle portion 5, and the siphon force can be increased by increasing the water head pressure.
Further, the drainage can be smoothly removed through the guide channel 6 to increase the siphon flow velocity.

Next, FIG. 2 shows a modification of the first embodiment.
In FIG. 2, the guide channel 6 formed in the guide part 3b on the downstream side of the throttle part 5 is formed by decentering the center axis P1 in the left direction in the drawing from the upper side to the lower side.
That is, in FIG. 2, the inclination direction of the central axis P1 of the guide flow path 6 is the same as the central axis P of the eccentric flow path 4 in the main body 2 of the drain socket 1, and the inclination direction of the guide flow path 6 is It is set to be the same as the eccentric direction of the eccentric flow path 4 of the drain socket 1. Other configurations are the same as those in FIG.

When configured in this manner, the resistance of the drainage flowing down in the guide flow path 6 becomes smaller than that in FIG. 1, and the siphon flow velocity can be prevented from decreasing. Therefore, disturbances such as scattering of water below the throttle portion 5 can be reduced as compared with that in FIG. 1, and drainage can be smoothly discharged.
That is, since the drainage is bent in the eccentric direction in the eccentric flow path 4 and the drainage falls in the eccentric direction without falling in the direction perpendicular to the floor surface, the eccentric direction of the eccentric flow path 4 and the guide flow path If the inclination direction of 6 is the same, the drainage will smoothly pass through the guide channel 6.
Even in this case, it is possible to generate a siphon below the throttle portion 5 due to a slight resistance in the guide flow path 6 and to increase the water head pressure to increase the siphon force compared to the conventional case.

Next, FIG. 3 illustrates a second embodiment of the present invention.
The drain socket 1 is integrally formed with a connecting hook 2a in the shape of a bowl whose upper surface is opened at the upper part of the main body 2 and protrudes outward at the lower end of the main body 2 so as to be a drain pipe fixing portion 2b. Are integrally formed.
A cylindrical member 3 is bonded and integrated with an adhesive on the lower end side of the main body 2, and a lower portion of the cylindrical member 3 is a drain pipe insertion portion 3 a that extends downwardly.

A rubber packing 7 is fitted on the upper surface of the connecting hook 2a. A toilet drain 8 is inserted into the rubber packing 7 from above, and the toilet drain 8 is watertight. It is connected to the drain socket 1.
Further, the drain socket 1 is fixed to the floor surface F by tightening bolts or the like to the drain pipe fixing portion 2b. The drain socket 9 is connected to the drain pipe 9 raised in an embedded state on the floor surface F. The drainage pipe insertion part 3a is inserted therein, and the lower part of the drainage socket 1 is connected to the drainage pipe 9.

An eccentric flow path 4 is formed in the main body 2 of the drain socket 1, and the center of the outlet 4b at the lower end of the eccentric flow path 4 is illustrated with respect to the inlet 4a at the upper end of the eccentric flow path 4. It is off-centered and decentered.
Further, the inner wall of the eccentric flow path 4 is gently inclined, and an inclined drainage receiving surface 4c is formed at an upper portion thereof so as to be inclined downward from the upper side toward the left side in the figure. A drainage guide surface 4d is formed in the eccentric flow path 4 substantially vertically downward from the surface 4c. In addition, the lower end side of the drainage guide surface 4d, that is, the outlet 4b side is enlarged in a trumpet shape.

  A lower end of the drain pipe insertion part 3a is disposed below the outlet 4b, and an orifice-like throttle part 5 having a narrow inner diameter is formed at the lower end of the drain pipe insertion part 3a. Is inclined in a direction substantially perpendicular to the drainage flowing down from the inlet 4a of the drain socket 1 toward the outlet 4b. That is, the receiving surface 5b on the right side is lower than the receiving surface 5a on the left side of the throttle portion 5, and the central axis P connecting the centers of the inlet 4a and the outlet 4b of the eccentric flow path 4 is Are set so as to be substantially perpendicular to the surface connecting the receiving surface 5a and the receiving surface 5b, and the throttle portion 5 is inclined with respect to the floor surface F from the left side to the right side in the figure.

Next, the flow of drainage in the second embodiment will be described.
The waste water that flows into the eccentric flow path 4 of the drain socket 1 together with the filth from the drain port 8 of the toilet bowl initially hits the drain receiving surface 4c of the eccentric flow path 4 because of its low flow velocity, and is shown along the drain guide surface 4d. It flows down in the direction indicated by the middle a, hits the receiving surfaces 5a and 5b of the throttle portion 5, and the drainage is accumulated in the eccentric flow path 4 and the siphon is activated. After the siphon is activated, the flow rate is high, and the drainage flows while being bent in the direction indicated by b in the figure, that is, in the eccentric direction of the eccentric channel 4 in a state where the eccentric channel is filled with drainage.

Here, since the throttle part 5 is inclined in a direction substantially perpendicular to the drainage flowing down from the inlet 4a toward the outlet 4b, the receiving surfaces 5a and 5b of the throttle part 5 with respect to the flow of drainage. It is possible to widen the flow path in the throttle part 5 while ensuring the resistance, and to reduce the resistance of the drained drainage. Therefore, the drainage of the drainage after the siphon activation becomes smooth, and the siphon flow rate can be increased. It will be a thing.
In addition, if the height position of the throttle part 5 is set to be the same as the conventional one, the volume of drainage accumulated above the throttle part 5 is the same as that of the conventional drain socket, so the siphon activation speed is the same as the conventional one. In this example, drainage after the siphon is activated can be made faster than before.

Next, FIG. 4 shows a drain socket of the third embodiment, and FIG. 5 shows a cross-sectional view taken along line AA of FIG.
The drain socket 1 is integrally formed with a connecting hook 2a in the shape of a bowl whose upper surface is opened at the upper part of the main body 2 and protrudes outward at the lower end of the main body 2 so as to be a drain pipe fixing portion 2b. Are integrally formed.
A cylindrical member 3 is bonded and integrated with an adhesive on the lower end side of the main body 2, and a lower portion of the cylindrical member 3 is a drain pipe insertion portion 3 a that extends downwardly.

A rubber packing 7 is fitted on the upper surface of the connecting hook 2a. A toilet drain 8 is inserted into the rubber packing 7 from above, and the toilet drain 8 is watertight. It is connected to the drain socket 1.
Further, the drain socket 1 is fixed to the floor surface F by tightening bolts or the like to the drain pipe fixing portion 2b. The drain socket 9 is connected to the drain pipe 9 raised in an embedded state on the floor surface F. The drainage pipe insertion part 3a is inserted therein, and the lower part of the drainage socket 1 is connected to the drainage pipe 9.

An eccentric flow path 4 is formed in the main body 2 of the drain socket 1, and the center of the outlet 4b at the lower end of the eccentric flow path 4 is illustrated with respect to the inlet 4a at the upper end of the eccentric flow path 4. It is off-centered and decentered.
Further, the inner wall of the eccentric flow path 4 is gently inclined, and an inclined drainage receiving surface 4c is formed at an upper portion thereof so as to be inclined downward from the upper side toward the left side in the figure. A drainage guide surface 4d is formed in the eccentric flow path 4 substantially vertically downward from the surface 4c. In addition, the lower end side of the drainage guide surface 4d, that is, the outlet 4b side is enlarged in a trumpet shape.

  A lower end of the drain pipe insertion portion 3a is disposed below the outlet 4b, and an orifice-like throttle portion 5 having a narrow inner diameter is formed at the lower end of the drain pipe insertion portion 3a. The area of the receiving surface 5a on the left side of the figure is narrow, and the area of the receiving surface 5b on the right side of the figure is set wide. That is, the central axis of the throttle portion 5 is set at a position that is eccentric to the left in the drawing than in the prior art, and the throttle portion 5 is eccentric in the same direction as the eccentric direction of the eccentric flow path 4. That is, the throttle portion 5 is eccentric in the same direction as the direction of inclination of the flow path before the outlet 4b.

Next, the flow of drainage in the third embodiment will be described.
The wastewater that flows into the eccentric flow path 4 together with the filth from the drainage port 8 of the toilet bowl has a low flow velocity before the siphon occurs, so that the wastewater hits the drainage receiving surface 4c in the eccentric flow path 4 and the drainage is almost the same. It flows down along the vertical drain guide surface 4 d in the direction indicated by “a” in the figure, and hits the receiving surface 5 b on the right side of the throttle portion 5. Since the area of the right receiving surface 5b is larger than that of the conventional one, the drainage easily collects, so that the drainage can be well accumulated in the upper eccentric flow path 4 and the siphon can be activated.
After the siphon is activated, the flow rate of the drainage is high, and the drainage flows in the direction indicated by the arrow b in the figure while the drainage is bent in the eccentric direction of the eccentric channel 4 while the eccentric channel 4 is filled with drainage. Will be going.

  As described above, in the structure of this example, since the area of the receiving surface 5b of the right throttle portion 5 is large, the drainage can be quickly accumulated to speed up the activation of the siphon, and the receiving surfaces 5a and 5b of the throttle portion 5 can be accelerated. Since the entire area and the area of the flow path of the throttle portion 5 are the same as those of the conventional drain socket, the siphon flow speed after siphoning can be made the same as the conventional one.

FIG. 6 shows a modification of the third embodiment.
The drain socket 1 of FIG. 6 has a main body divided into a main body upper part 2A and a main body lower part 2B, and the lower part of the main body upper part 2A is connected to the upper end of the main body lower part 2B by a connecting part B and integrated. An eccentric flow path 4 is formed in the main body upper part 2A and the main body lower part 2B. The eccentric flow path 4 is formed by being bent to the left side in the figure between the inlet 4a at the upper end and the connection part B. Between the outlet 4b at the lower end and the outlet 4b, it is bent to the right in the figure, and the eccentric flow path 4 is a flow path bent in a substantially S shape.

Further, in this example, a constricted portion 5 is formed at the position of the outlet 4b. The constricted portion 5 is formed with its center decentered to the right in the figure, and the area of the left receiving surface 5b is wide, The area of the receiving surface 5b is set narrow.
In such a configuration, since the flow rate of the drainage is slow before the siphon is activated, the drainage flowing down from the inlet 4a into the eccentric flow path 4 hits the drainage receiving surface 4c, and the arrow a along the drainage receiving surface 4c. Can flow down to the receiving surface 5a of the wide-area restricting portion 5 and receive the drainage by the large-area receiving surface 5a so that the water can be quickly stored in the drainage channel 4, thereby increasing the activation speed of the siphon. It will be possible.

  In addition, after the siphon is activated, the wastewater flows down in the direction of the arrow b while being bent along the bend of the eccentric flow path 4 in a state where the eccentric flow path 4 is filled with the drainage, and the flow of the drainage flowing down from the outlet 4b The direction is inclined to the right. That is, the drainage flows down to the right along the drainage receiving surface 4e formed in a curved shape inside the main body lower part 2B.

FIG. 7 shows a drain socket of the fourth embodiment.
The drain socket 1 is integrally formed with a connecting hook 2a in the shape of a bowl whose upper surface is opened at the upper part of the main body 2 and protrudes outward at the lower end of the main body 2 so as to be a drain pipe fixing portion 2b. Are integrally formed.
A cylindrical member 3 is bonded and integrated with an adhesive on the lower end side of the main body portion 2, and the lower portion of the cylindrical member 3 is a drain pipe insertion portion 3a extending downwardly downwardly, Further, a guide portion 3b is integrally formed in a hanging shape continuously downward from the drain pipe insertion portion 3a.

A rubber packing 7 is fitted on the upper surface of the connecting hook 2a. A toilet drain 8 is inserted into the rubber packing 7 from above, and the toilet drain 8 is watertight. It is connected to the drain socket 1.
Further, the drain socket 1 is fixed to the floor surface F by tightening bolts or the like to the drain pipe fixing portion 2b. The drain socket 9 is connected to the drain pipe 9 raised in an embedded state on the floor surface F. The drainage pipe insertion part 3a is inserted therein, and the lower part of the drainage socket 1 is connected to the drainage pipe 9.

An eccentric flow path 4 is formed in the main body 2 of the drain socket 1, and the center of the outlet 4b at the lower end of the eccentric flow path 4 is illustrated with respect to the inlet 4a at the upper end of the eccentric flow path 4. It is off-centered and decentered.
Further, the inner wall of the eccentric flow path 4 is gently inclined, and an inclined drainage receiving surface 4c is formed at an upper portion thereof so as to be inclined downward from the upper side toward the left side in the figure. A drainage guide surface 4d is formed in the eccentric flow path 4 substantially vertically downward from the surface 4c. In addition, the lower end side of the drainage guide surface 4d, that is, the outlet 4b side is enlarged in a trumpet shape.

  A lower end of the drain pipe insertion part 3a is disposed below the outlet 4b, and an orifice-like throttle part 5 having a narrow inner diameter is formed at the lower end of the drain pipe insertion part 3a. Is inclined in a direction substantially perpendicular to the drainage flowing down from the inlet 4a of the drain socket 1 toward the outlet 4b. That is, the receiving surface 5b on the right side is lower than the receiving surface 5a on the left side of the throttle portion 5, and the central axis P connecting the centers of the inlet 4a and the outlet 4b of the eccentric flow path 4 is Are set so as to be substantially perpendicular to the surface connecting the receiving surface 5a and the receiving surface 5b, and the throttle portion 5 is inclined with respect to the floor surface F from the left side to the right side in the figure.

  The guide portion 3b is continuously formed integrally with the throttle portion 5 so as to hang down, and the guide channel 6 in the guide portion 3b is formed in a curved shape inclined from the upper side to the lower side in the drawing. That is, the center axis P1 of the guide channel 6 is inclined in the same direction as the center axis P of the eccentric channel 4, and the inclination direction of the guide channel 6 is set to be the same as the eccentric direction of the eccentric channel 4 of the drain socket 1. ing.

Next, the flow of drainage in the fourth embodiment will be described.
The waste water that flows into the eccentric flow path 4 of the drain socket 1 together with the filth from the drain port 8 of the toilet bowl initially hits the drain receiving surface 4c of the eccentric flow path 4 because of its low flow velocity, and is shown along the drain guide surface 4d. It flows down in the direction indicated by the middle a, hits the receiving surfaces 5a and 5b of the throttle portion 5, and the drainage is accumulated in the eccentric flow path 4 and the siphon is activated. After the siphon is activated, the flow rate is high, and the drainage is bent and flows in the direction indicated by b in the figure, that is, in the eccentric direction of the eccentric channel 4 while the eccentric channel 4 is filled with drainage.

Here, since the throttle part 5 is inclined in a direction substantially perpendicular to the flow direction of the drainage flowing down from the outlet 4b, the areas of the receiving surfaces 5a and 5b of the throttle part 5 are reduced with respect to the flow of the drainage. While ensuring, the flow path of the throttle part 5 can be expanded, and the resistance of the drained water can be reduced. Furthermore, since the eccentric direction of the eccentric flow path 4 and the inclination direction of the guide flow path 6 are the same, the drainage smoothly passes through the guide flow path 6. Therefore, the drainage of drainage after the siphon activation becomes smooth, and the siphon flow velocity can be increased.
That is, if the height position of the throttle part 5 is set to the same position as the conventional one, the siphon activation speed is the same as the conventional one, and the drainage after the siphon activation can be made faster than the conventional one. It becomes.
In this case, the drainage in the guide channel 6 receives a slight resistance, can cause a siphon below the throttle portion 5, and can raise the water head pressure to increase the siphon force more than before. is there.

  In addition, in the structure of FIG. 7, the center axis line of the aperture | diaphragm | squeeze part 5 can also be further decentered in the illustration left direction. That is, the throttle portion 5 is eccentric in the same direction as the flow direction of the drainage flowing down from the outlet 4b, and here, the area of the receiving surface 5a of the throttle portion is reduced and the area of the right receiving surface 5b is increased. It can also be configured, and with such a configuration, before the siphon is activated, drainage can be received from the receiving surface 5b having a large area on the right side so that the drainage can be quickly collected and the siphon activation can be accelerated. It will be possible.

It is a longitudinal cross-section block diagram of the installation state of the drain socket of 1st Example. It is a longitudinal cross-section block diagram of the installation state of the drain socket of the example of a change of 1st Example. It is a longitudinal cross-section block diagram of the installation state of the drain socket of 2nd Example. It is a longitudinal cross-section block diagram of the installation state of the drain socket of 3rd Example. It is the sectional view on the AA line of FIG. It is a longitudinal cross-section block diagram of the installation state of the drain socket of the modification of 3rd Example. It is a longitudinal cross-section block diagram of the installation state of the drain socket of 4th Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drain socket 2 Main body part 2a Connection hook part 2b Drain pipe fixing part 2A Main body upper part 2B Lower body part 3 Cylindrical member 3a Drain pipe insertion part 3b Guide part 4 Eccentric flow path 4a Inlet 4b Outlet 4c Drain receiving surface 4d Drainage guide Surface 4e Drainage receiving surface 5 Restriction portion 5a, 5b Receiving surface 6 Guide flow path 7 Rubber packing 8 Toilet drain 9 Drain pipe B Connection F Floor

Claims (6)

The toilet outlet is connected to the upper inlet side, the lower outlet side is inserted into the drain pipe and fixed to the floor, and the siphon activation throttle is formed on the outlet side. In the drain socket
A drainage socket characterized in that a guide channel having a diameter smaller than the diameter of the drainage pipe is inclined with respect to the floor surface downstream of the throttle part and continuously formed downward from the throttle part.   2. The drain socket according to claim 1, wherein the outlet and the outlet are eccentric, and an inclination direction of the guide channel is set to be the same as an eccentric direction of the drain socket. . The toilet outlet is connected to the upper inlet side, the lower outlet side is inserted into the drain pipe and fixed to the floor, and the siphon activation throttle is formed on the outlet side. A drain socket,
The drain socket is characterized in that a flow path extending from the inlet to the outlet is bent, and the throttle portion is inclined in a direction substantially perpendicular to a flow direction of drainage flowing down from the outlet. Drain socket. The toilet outlet is connected to the upper inlet side, the lower outlet side is inserted into the drain pipe and fixed to the floor, and the siphon activation throttle is formed on the outlet side. A drain socket,
The drain socket is characterized in that a flow path from the inlet to the outlet is bent, and the throttle portion is eccentric in the same direction as the direction of drainage of the drain flowing down from the outlet.   The flow path from the inflow port to the outflow port is bent, and the throttle portion is inclined in a direction substantially perpendicular to the flow-down direction of the drainage flowing down from the outflow port. The drain socket according to claim 2.   The flow path from the inflow port to the outflow port is bent, and the throttle portion is eccentric in the same direction as the flow down direction of the drainage flowing down from the outflow port. The drain socket according to claim 5.

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