JPH0649873A - Single pipe type water exhaust pipe-fitting - Google Patents

Abstract

PURPOSE:To prevent counterflow into crosswise branch pipe, facilitate formation of a draft core in riser pipe, and enhance the water discharge performance by furnishing inclining ridges in the inflowing side riser pipe which joins the upper part of an enlarged part concentrically, inserting this riser pipe into an upper crosswise branch pipe to a position near the center of a horizontally directed pipe, and furnishing a ridge also in the lower outflowing side riser pipe in connection with the enlarged lower reducing part. CONSTITUTION:An inflowing side riser pipe 4 is concentrically connected with the upper part of an enlarged part 1 where an upper crosswise branch pipe 2 and a lower crosswise branch pipe 3 are in connection and is inserted to a position near the center of the crosswise branch pipe 2. Two inclining ridges 5 to give a swirl to the exhaust water in the inflowing side riser pipe 4 are provided opposingly. Also an inclining ridge 5 is furnished in an outflowing side riser pipe 7 connected with the bottom of a lower reducing part 6. Even though the discharge water diffuses into the enlarged part 1, it does not commit counterflow into the branch pipe 2, but assumes a natural downflow at the level of the crosswise pipe 3, and does not either commit intrusion into the crosswise pipe 3. Thereby double swirling forces are given to the discharged water, which should facilitate formation of a draft core inside of the riser pipe and enhance the water discharging performance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a single pipe type drain pipe joint.

[0002]

2. Description of the Related Art Conventionally, in a single pipe type drainage pipe joint in which an aeration portion is provided in a portion connected to a lateral branch pipe and a ventilation standpipe is omitted, it is joined to an upper portion of the enlargement portion 10 as shown in FIG. Provided with a vane ring 12 for turning only on the inflow side vertical pipe 11 (Japanese Patent Publication No. 57-5942 as a prior art document).
Alternatively, as shown in FIGS. 6 and 7, a blade 14 for swirling is provided only on the enlarged portion 10 'or the lower reducing portion 13 of the enlarged portion 10' (see Japanese Patent Laid-Open No. 50-4
5446 and JP-A-62-288795).

By the way, as shown in FIG. 4, in the case where the vane ring 12 for swirling is provided only on the inflow side vertical pipe 11 joined to the upper portion of the enlarged portion 10, the flow diffused from the vertical pipe 11 is Side branch pipe 1 so that it does not enter the side branch pipe 15 and flow backward
5 is connected to the upper side of the enlarged portion 10 or is tangentially connected to the enlarged portion 10 as shown in FIG. Was there.

Further, as shown in FIG. 6, in the case where the expanding portion 10 'or the lower reducing portion 13 of the expanding portion 10' is provided with the vanes 14 for swirling, the standing pipe 11 diffused to the expanding portion 10 '. Is likely to enter the lateral branch pipe 15 connected to the upper side of the enlarged portion 10 'and flow backward.

Further, as shown in FIG. 7, when the toilet bowl is connected to the lateral branch pipe 15 in the vicinity of the enlarged portion 10 'and the lateral branch pipe 15' is provided on the opposite side, drainage of the toilet bowl is prevented. There is a risk that it may rush into the lateral branch pipe 15 'on the opposite side to cause backflow.

In addition to this, in the case where the expanding portion has a swirl vane, since the drainage flows down along the inner peripheral portion of the inflow side standing pipe joined to the upper part of the expanding portion, the entire amount of the expanding portion is It did not pass through the blades and had a weak turning force.

Further, in the lower reducing portion 13 of the enlarged portion 10 'provided with the blade 14 for turning, since the blade 14 is provided on the inclined surface, there is a concern that filth adheres or catches sanitary products or the like. To be done.

[0008]

Therefore, according to the present invention, even if the flow of the vertical pipe diffuses at the enlarged portion, it does not invade into the lateral branch pipe and does not flow backward, and the drainage that merges from the lateral branch pipe to the enlarged portion is on the opposite side. There is no need to worry about rushing into the side branch pipe and backflow, and it is possible to smoothly flow down to the lower floor, and it is not necessary to connect the horizontal branch pipe to the expansion part from the tangential direction, and there is a double swirl for drainage flowing down to the lower floor. An object of the present invention is to provide a single-pipe type drainage pipe joint that can apply force, can easily form a ventilation core inside a vertical pipe, and can improve drainage performance.

[0009]

In order to solve the above-mentioned problems, a single pipe type drain pipe joint of the present invention is a single pipe type drain pipe in which an aeration section pipe is omitted by providing an enlarged portion at a portion connected to a lateral branch pipe. In the pipe joint, an inflow-side standing pipe that is concentrically joined to the upper part of the enlarged portion is provided with an inclined ridge that gives a swirling flow, and the inflow-side standing pipe is connected to the enlarged lateral branch pipe. Is inserted into the enlarged portion up to the vicinity of the center of the horizontal pipe, and an inclined ridge for giving a swirling flow is also provided in the lower outlet side standing pipe connected to the lower reducing portion of the enlarged portion.

[0010]

In the single pipe type drainage pipe joint of the present invention, the inflow side vertical pipe concentrically joined to the upper portion of the enlarged portion is provided near the horizontal pipe center of the upper lateral branch pipe connected to the enlarged portion. Since it is inserted up to the level in the expanded part, even if the drainage flow of the vertical pipe diffuses in the expanded part, it does not invade into the lateral branch pipe and flow backward. Also, even when the toilet bowl is connected to the upper lateral branch pipe in the vicinity of the enlarged portion, drainage that joins the enlarged lateral portion from the upper lateral branch pipe collides with the inflow side standpipe, so the opposite upper lateral branch pipe There is no need to worry about rushing into the pipe or backflow. In addition, the flow of drainage that merges from each lateral branch pipe to the enlarged part is given a swirling flow by the inclined ridges provided in the outflow side standing pipe connected to the lower end of the lower reducing part of the enlarged part, to the lower floor. Since it flows down, it is not necessary to connect the lateral branch pipe to the enlarged portion tangentially as in the conventional case.

Further, in the single pipe type drain pipe joint of the present invention, inclined projections are provided inside the inflow side vertical pipe joined to the upper part of the enlarged portion and the outflow side vertical pipe joined to the lower reducing part. Therefore, the swirling force is given to the drainage flowing down from the upper floor to the lower floor, and the ventilation core is easily formed inside the vertical pipe to improve the drainage performance. .

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a single pipe type drain pipe joint of the present invention will be described with reference to the drawings. In FIG.
An inflow-side standing pipe 4 is concentrically connected to the upper portion of the enlarged portion 1 to which the lower lateral branch pipe 3 is connected. That is, the inflow-side standing pipe 4 is concentrically inserted into the enlarged portion 1 up to the vicinity of the horizontal pipe center of the upper lateral branch pipe 2 connected to the enlarged portion 1.
It is fixed by welding to the periphery of the insertion hole in the upper wall. Two inclined ridges 5 are provided in the inflow-side standing pipe 4 so as to give a swirling flow to the drainage by pressing from the outer peripheral surface. In the outflow side standing pipe 7 connected to the lower end of the lower reducing part 6 of the expansion part 1, two inclined ridges 5 for giving a swirling flow to the drainage are provided at positions facing each other by pressing from the outer peripheral surface. It should be noted that the inclined ridges 5 for providing the swirling flow are not limited to being provided at the two opposing positions, but may be a combination of three or four.

In the single pipe type drain pipe joint 8 of the embodiment thus constructed, the inflow side vertical pipe 4 is inserted into the enlarged portion 1 up to the vicinity of the horizontal pipe center of the upper lateral branch pipe 2. Even if the drainage flow of the inflow side vertical pipe 4 diffuses in the enlarged portion 1 as shown in FIG. 2, it does not invade into the upper lateral branch pipe 2 and flow backward. At the level position of the lower lateral branch pipe 3 in the enlarged portion 1, since the diffusion of the drainage is completed and it is in the state of natural flow, there is no invasion into the lower lateral branch pipe 3 and backflow.

Further, even when the toilet bowl is connected to the upper lateral branch pipe 2 in the vicinity of the enlarged portion 1, the drainage that joins the enlarged lateral portion 1 from the upper lateral branch pipe 2 hits the inflow side standing pipe 4. , Rush into the upper lateral branch pipe 2'provided on the opposite side as shown in FIG.
There is no need to worry about backflow. In addition, the flow of the wastewater that joins the enlarged portion 1 from each lateral branch pipe has a swirling flow due to the inclined ridges 5 provided in the outflow side standing pipe 7 connected to the lower end of the lower reducing portion 6 of the enlarged portion 1. Given, it will flow downstairs,
It is not necessary to connect the lateral branch pipe to the enlarged portion 1 tangentially as in the conventional case.

Furthermore, the single pipe type drain pipe joint 8 of the embodiment is
Since the inflow side standpipe 4 joined to the upper part of the enlarged part 1 and the outflow side standpipe 7 joined to the lower reducing part 6 are provided with inclined ridges 5 for turning, respectively, from the upper floor to the lower part. A double swirl force is applied to the drainage flowing down to the floor, and a ventilation core is easily formed at the center of the inside of the standing pipes 4 and 7, and the drainage performance is improved.

[0016]

As described above, according to the single pipe type drain pipe joint of the present invention, even if the flow of the vertical pipe diffuses at the enlarged portion, it enters the lateral branch pipe,
There is no backflow, and there is no concern that the wastewater that joins from the lateral branch pipe will rush into the lateral branch pipe on the opposite side and flow backward, and it can smoothly flow down to the lower floor and expand the lateral branch pipe as before. It is not necessary to connect the pipes from the tangential direction, and a double swirling force can be applied to the drainage flowing down to the lower floor, and a ventilation core can be easily formed inside the vertical pipe, so that the drainage performance is significantly improved.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a single pipe type drain pipe joint of the present invention.

FIG. 2 is a cross-sectional view showing a state of drainage flowing into an enlarged portion of the single pipe type drainage pipe joint of FIG.

FIG. 3 is a cross-sectional view showing a state of drainage that merges from an upper lateral branch pipe to an enlarged portion in another example of the single-pipe type drainage pipe joint of the present invention.

FIG. 4 is a view showing an example of a conventional single pipe type drain pipe joint.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a cross-sectional view showing another example of a conventional single pipe type drain pipe joint.

FIG. 7 is a sectional view showing still another example of a conventional single pipe type drain pipe joint.

[Explanation of symbols]

 1 Expansion part 2 Upper side branch pipe 3 Lower side branch pipe 4 Inflow side standing pipe 5 Inclined ridge 6 Lower reducing 7 Outflow side standing pipe 8 Single pipe type drain pipe joint

Front page continuation (72) Inventor Tomohiro Matsuo 2-5-13 Sanno, Ota-ku, Tokyo Benkan Stock Company (72) Inventor Keisuke Sugawara 2-5-13 Sanno, Ota-ku Tokyo Tokyo Benkan Co., Ltd. (72) Inventor Tsuneyoshi Shibata 2-5-13 Sanno, Ota-ku, Tokyo Benkan Stock Company (72) Inventor Yoshikazu Yoshida 2-5-13 Sanno, Ota-ku Tokyo Tokyo Benkan

Claims (1)

[Claims] 1. In a single-pipe type drain pipe joint in which an enlarged portion is provided in a portion connected to a lateral branch pipe and a ventilation standpipe is omitted, in an inflow side standpipe concentrically joined to an upper portion of the enlarged portion, An inclined ridge that gives a swirl flow is provided, and this inflow side standing pipe is inserted into the enlarged portion up to the horizontal pipe center of the upper side branch pipe connected to the enlarged portion, and is connected to the lower reducing portion of the enlarged portion. A single pipe type drain pipe joint characterized in that an inclined ridge that provides a swirling flow is also provided in the lower outflow side vertical pipe.