JP5601784B2 - Drain trap device - Google Patents

Description

  The present invention relates to a drain trap apparatus.

  Conventionally, as a drain trap apparatus of this type, there is one having a structure as disclosed in, for example, Patent Document 1. In the drain trap apparatus of Patent Document 1, the second descending portion of the second descending portion that has been bent downwardly in the S trap is disclosed. In the upper tube wall, a convex portion is arranged on the outer bending side to prevent the falling water flow from becoming plug-like, and it is possible to eliminate the generation of noise due to sucking out the sealed water.

JP 2001-59249 A

  In the drain trap device of the above-mentioned Patent Document 1, it is possible to eliminate the generation of abnormal noise, but there is a problem that dust tends to accumulate on the convex portion provided on the outer bending side.

An object of the present invention is to provide a drain trap apparatus that can prevent the generation of abnormal noise and that does not collect dust, and has taken the following measures in order to achieve at least a part of the object.
The present invention is a drainage trap apparatus having a downwardly inclined part in the drainage channel and a vertical part of the hanging part downstream thereof,
A continuous inclined surface in which the inclination angle of the inclined portion continues to the inside of the vertical portion is provided inside a portion where the inclined portion and the vertical portion intersect, and a throttle portion is formed in the drainage channel by the continuous inclined surface. Is the gist.

In the drain trap apparatus of the present invention, the throttle portion is formed inside the portion where the inclined portion and the vertical portion intersect. Therefore, the throttle portion can prevent the water flow of the drainage falling in the vertical portion from becoming plug-like and sealed. Occurrence of abnormal noise caused by sucking out water can be eliminated.
Further, the diaphragm portion, a continuous inclined surface inclination angle of the inclined portion continuous to the vertical portion is provided, since this is what is continuous by the inclined surface forming, dust of the waste water along a continuous inclined surface It falls well in the vertical part, and dust does not collect on the continuous inclined surface.

Further, in the drain trap apparatus of the present invention, the throttle portion extends substantially horizontally outward from the lower end of the drooping surface, the drooping surface substantially hanging from the lower end of the continuous sloping surface, and the lower end of the continuous sloping surface. It can also be formed by a concave portion constituted by a horizontal plane.
In this way, the drooping surface serves as a guide for stabilizing the direction of drainage, and the flow of drainage is surely directed directly downward, so that drainage performance can be stabilized and noise prevention performance can be improved. .

Further, in the drain trap apparatus of the present invention, the inclined portion and the vertical portion include a primary pipe inclined downward at 45 °, and a secondary pipe connected to the downstream side of the primary pipe and having a 135 ° bent portion. It can also be set as the structure which becomes.
In this way, a secondary pipe having a 135 ° bend is connected to the downstream side of the primary pipe inclined downward at 45 °, thereby preventing the generation of noise in the drain trap device and collecting dust inside. No structure can be realized. In addition, this separate secondary pipe having a 135 ° bend can be rotated horizontally at the connecting portion, so that the vertical portion can be arranged horizontally, and can be used for both floor drainage and wall drainage. .

It is a whole block diagram of the drain trap apparatus provided in the bottom face of the washbasin of the washstand. It is an expanded block diagram of piping of a drain trap apparatus. It is an external appearance side block diagram of the waste_water | drain discharge pipe (secondary pipe) in FIG. It is a longitudinal cross-section block diagram of FIG. It is a front lineblock diagram of a drainage outlet pipe (secondary pipe).

Next, the form for implementing this invention is demonstrated using an Example.
FIG. 1 is a configuration diagram of a drain trap device provided in a wash basin. A wash basin 3 is installed on the upper surface side of the cabinet 2 of the wash basin 1, and a drainage port 3 a of the wash basin 3 is suspended. A drainage guide pipe 4 is connected in a shape, and an overflow pipe 5 is connected above the drainage guide pipe 4. A trap forming pipe 7 constituting a drain trap apparatus 6 at the lower end of the drain guide pipe 4, a V-shaped connecting pipe 8 (primary pipe) on the downstream side, and a drain outlet pipe 9 (secondary pipe) on the downstream side thereof. Is connected.

  The trap forming tube 7 is U-shaped, and as shown in the enlarged view of FIG. 2, a drain hole 7a is formed at the bottom side of the U-shape, and a male screw on the outer periphery of the drain hole 7a. A drain cap 11 is detachably attached to 7b with a packing 10 interposed. The trap forming pipe 7 has a uniform pipe diameter so that no turbulent flow is generated on the downstream side.

The V-shaped connecting pipe 8 connected downstream of the trap forming pipe 7 has an upright portion 8a rising vertically and an inclined portion 8b inclined downward by 45 ° from the upper end side of the upright portion 8a. Continuing at the portion 8c, it is formed in a V shape as a whole.
The upright portion 8 a of the V-shaped connecting pipe 8 is inserted into the downstream end of the trap forming pipe 7 from above, and the hand tightening nut 13 is tightened with the packing 12 interposed therebetween, and the V-shaped connecting pipe 8 is connected to the trap forming pipe 7. be able to.

Further, a male screw 8e is formed on the outer periphery of the lower end of the inclined portion 8b of the V-shaped connecting pipe 8, and a hand-tightening nut 13 is tightened with a packing interposed between the male screw 8e and downstream of the V-shaped connecting pipe 8. A drainage pipe 9 can be connected.
The drainage lead-out pipe 9 is formed in a generally U shape, and an upstream inclined portion 9a and a downstream vertical portion 9b are continuously formed by a bent portion 9c, and the inclined portion 9a is connected in a V shape. The inclination angle of 45 ° is the same as that of the inclined portion 8b of the tube 8, and the vertical portion 9b is formed vertically.

As shown in the side external view of FIG. 3, the side longitudinal cross-sectional configuration diagram of FIG. 4, and the front external view of FIG. 5, the drainage pipe 9 is recessed inside the bent portion 9 c as viewed from the side. A recessed portion 9d is formed, and the recessed portion 9d forms a constricted portion 9e having a water channel constricted on the upper end side of the vertical portion 9b.
The concave portion 9d includes a continuous inclined surface 93 that is continuously inclined from the inclined wall surface 91 inside the inclined portion 9a at the same inclination angle into the vertical portion 9b, and a suspended surface that is substantially suspended from the lower end of the continuous inclined surface 93. 94 and a horizontal plane 95 extending substantially horizontally outward from the lower end of the drooping surface 94 and formed in a concave shape.

  The continuous inclined surface 93 is continuously inclined toward the vertical portion 9b from the intersection P with the inclined wall surface 91 extending upward from the vertical wall surface 92 of the vertical portion 9b, and is inclined downward at the inclination angle of the inclined wall surface 91. Therefore, the water flow flowing down through the V-shaped connecting pipe 8 increases the flow velocity from the inclined wall surface 91 to the continuous inclined surface 93 and flows into the throttle portion 9e. The water flow is squeezed by the throttle portion 9e and flows down into the vertical portion 9b of the drainage discharge pipe 9, and the falling water flow is prevented from becoming plugged in the vertical portion 9b. Does not become full of water, and therefore, no abnormal noise is generated due to the suction of the sealed water in the vertical portion 9b. In addition, the drooping surface 94 constituting the recess 9d serves as a guide that stabilizes the direction of drainage, and the flow of drainage is surely directed directly downward, thereby stabilizing drainage performance and improving noise prevention performance. Can be planned.

  For example, the drainage pipe 9 has an outer diameter dimension a of 32 mm and an inner diameter dimension b of 28 mm. The outer diameter dimension c of the throttle portion 9e is 19 mm, the inner diameter dimension d of the throttle portion 9e is 17 mm, and the height dimension e of the throttle portion 9e is 22 mm. The angle α formed by the center line of the inclined portion 9a and the center line of the vertical portion 9b is set to 135 °.

3 to 5 is inserted into the inclined portion 8b of the V-shaped connecting pipe 8, and the upper end is in contact with the contact step 8d in the V-shaped connecting pipe 8. The drainage outlet pipe 9 can be connected to the V-shaped connecting pipe 8 by installing the packing on the male screw 8e and tightening the hand tightening nut 13, and the vertical portion 9b of the drainage outlet pipe 9 can be installed vertically. By arranging it, it becomes a floor drainage structure, and sucking out the sealed water in this vertical part 9b can be prevented by the throttle part 9e, and it is possible to satisfactorily prevent the generation of abnormal noise such as gobogobo noise and the upper end side of the throttle part 9e The continuous inclined surface 93 can be configured so that dust does not collect.
The drainage lead-out pipe 9 can be adapted to wall drainage by loosening and rotating the hand tightening nut 13 and arranging the vertical portion 9b substantially horizontally as shown in FIG.

3 Wash Basin 4 Drainage Guide Pipe 6 Drainage Trap Device 7 Trap Forming Pipe 8 V-shaped Connection Pipe (Primary Pipe)
8a Standing portion 8b Inclined portion 9 Drain discharge pipe (secondary pipe)
9a Inclined portion 9b Vertical portion 9c Bent portion 9d Recessed portion 9e Constricted portion 91 Inclined wall surface 92 Vertical wall surface 93 Continuous inclined surface 94 Suspended surface 95 Horizontal surface

Claims (3)

In the drainage trap device having a downwardly inclined part in the drainage channel and a vertical part of the hanging part downstream thereof,
A continuous inclined surface in which an inclination angle of the inclined portion continues to the inside of the vertical portion is provided inside a portion where the inclined portion and the vertical portion intersect, and a throttle portion is formed in the drainage channel by the continuous inclined surface. Drain trap device characterized by. The throttle part is
It is formed by the recessed part comprised from the said continuous inclined surface, the drooping surface which makes a substantially hanging shape from the lower end of this continuous inclined surface, and the horizontal surface extended substantially horizontally from the lower end of this drooping surface. Item 2. A drain trap apparatus according to Item 1. The inclined portion and the vertical portion are
The drainage trap apparatus according to claim 1 or 2, comprising a primary pipe inclined downward at 45 ° and a secondary pipe connected to the downstream side of the primary pipe and having a 135 ° bent portion. .

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