JPH0718181B2 - Drain joint for discharge end - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a drainage joint for a discharge end for connecting a horizontal main pipe that is horizontally deployed in a drainage pipe for a high-rise apartment house such as an apartment and a building for other uses.

[Prior art]

As a conventional drainage piping system, a two-pipe drainage system consisting of a drainage vertical pipe, a ventilation vertical pipe attached to it, a drainage horizontal pipe for each floor of a multi-storey building A single pipe type that uses a system or a special joint that forms a ventilation core from the pipe wall flow to the drainage system by baffles, guides, rings, etc., and thereby maintains mutual communication of air throughout the drainage system Drainage system has been proposed. FIG. 9 is a piping configuration diagram showing a conventional two-pipe type drainage system. In the figure, 1 is a drainage pipe commonly used for each floor in a multi-storey building, 2 is a T-pipe, TY pipe in this drainage pipe 1. , Drainage lateral branch pipes of each floor connected via an intermediate joint 3 for each floor consisting of bend pipes, etc., 2a is an instrument trap connected to these drainage lateral branch pipes 2, 9 is the maximum of the drainage vertical pipe 1 Horizontally developed horizontal main pipe connected to the lower end through the intermediate leg joint 4,
Reference numeral 10 denotes a deployment drainage joint connected to the downstream end of the horizontal main pipe 9, and a downstream side drainage standpipe 15 is connected to the lower end of the deployment drainage joint 10, and the downstream side drainage standpipe 15 has The site main pipe 17 and the like 17 are connected to the lower end through the lowest-floor leg joint 16. A discharge joint 20 for the discharge end is connected to the downstream end of the horizontal main pipe 17 and the like on the site. The drainage joint 20 for the discharge end transfers the horizontal inflow drainage from the horizontal main pipe 17 in the site to the drainage tank T side in the vertical direction and discharges it into the drainage tank T. Reference numeral 5 is a ventilation pipe connected to the drainage vertical pipe 1, the expansion drainage joint 10 and the downstream side drainage vertical pipe 15 at appropriate places to open the air in the pipe to the atmosphere.

[Problems to be Solved by the Invention]

However, in the horizontal main pipe system in the above conventional two-pipe type drainage piping system, a right-angled inflow pipe blockage occurs at the portion A in FIG. 9, and a jacking phenomenon occurs at the portion B, and at the portion C. When drainage flows into the discharge end drainage joint 20 from the site horizontal main pipe 17 or the like, the inflowing drainage collides with the inner wall of the discharge end drainage joint 20 or falls inside the discharge end drainage joint 20. Turbulent flow due to contact with the inner wall of the joint, drainage noise due to mutual collision of drainage, etc. occur, and the flow of these drainage blocks the ventilation paths D, E, F, and as a result, the pipe internal pressure is reduced. There was a problem such as an abnormal rise. In the horizontal main pipe of the existing drainage system as described above, the pressure inside the drainage system pipe is abnormally increased due to the above problems, breaking the sealing water of the trap attached to the sanitary equipment, backflow of odors, invasion of pests, etc. To destroy the indoor environment,
The function to discharge the drainage safely and promptly to the outside of the system by natural gravity and to protect the sealed water of the drainage trap by supplying or discharging the air against the increase and decrease of the air in the drainage pipe in the ventilation system and smoothing the flow of the drainage. However, there was a problem that it was not enough to fulfill its purpose. Further, in a high-rise apartment, a large amount of laundry drainage causes an abnormal rise in the pipe internal pressure and a backflow of bubbles contained in the laundry drainage, which causes complaints and troubles. Therefore, in the drainage system of the horizontal main pipe, the above-mentioned problems occur, and in both cases of the two-pipe type and the single-pipe type,
It has a complicated piping system with a vent pipe to maintain its performance. However, even with such a complicated piping system, the problem cannot be solved, and the causes of the above-mentioned parts A to F affect even the standing pipes that span the multi-story, thus reducing the performance of the entire drainage system. There was a point. An object of the present invention is to provide a drainage joint for a discharge end that solves the above problems.

[Means for Solving the Problems]

The discharge end drainage joint of the present invention is a T-shaped pipe or a TY-shaped pipe as a joint for connecting the horizontal drainage flowing from the horizontal main pipe of horizontal deployment in each existing drainage system to vertically shift and discharge it. In contrast to a piping system connected by a horizontal pipe, etc., the joint body is formed in a cylindrical shape with a large diameter so as to give a swirling flow to the drainage discharged into the drain tank etc. from the horizontally expanded horizontal main pipe. In the body part, there is provided a straightening plate for suppressing the jumping of the inflow and drainage from the horizontally deployed horizontal main pipe and for promptly guiding the inflow and drainage to the discharge side without blocking the inflow connection port of the horizontal main pipe. It is a feature.

[Action]

The drainage joint for the discharge end according to the present invention has the above-mentioned structure when advancing / opening the drainage vertical pipe, which is responsible for the drainage of each floor spanning the multi-storey floor, the expanded horizontal main pipe receiving the same, and the drainage vertical pipe at the bottom floor to the horizontal main pipe. By controlling the flow of waste water, the problems related to the drainage system and the ventilation system are solved, and the complicated piping system is simplified, and the construction is also simplified. That is, the drainage flowing in from the tangential direction to the axis of the discharge end drainage joint collides with the inner wall of the joint pipe at a deep angle, and becomes a swirl flow along the inner wall of the discharge end drainage joint as it is, depending on the cylindrical downstream portion. The pipe wall flow is formed in the discharge end drainage joint while amplifying the swirling flow. The flow velocity of the wastewater forming the pipe wall flow is reduced due to its viscosity, which suppresses the jumping phenomenon and also provides a silent effect by reducing the impact. In addition, even if the flow direction is changed by the discharge end drainage joint, a swirling flow forms a vent core in the vertical pipe system, the expansion system, and the horizontal main pipe system, so that smooth mutual communication is achieved across the entire drainage system. It can be maintained, it is maintained at about atmospheric pressure, and it is possible to prevent the seal water from breaking. Also, in particular, by the rectifying plate in the drainage joint for the discharge end,
It suppresses the splashing of drainage that collides with the inner wall of the joint pipe, prevents the inflow connection port of the expanded horizontal main pipe from being blocked, and guides it to the downstream side promptly, causing a large amount of drainage or the pressure inside each drainage system due to detergent bubbles, etc. With respect to the abnormal pressurization, the pressure balance is maintained by replenishing or discharging air from the ventilation connection port in the upper part of the joint pipe through the ventilation pipe and the ventilation path of the two-layer structure.

【Example】

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a vertical sectional side view showing a drain joint for a discharge end of a single pipe type according to a first embodiment of the present invention, and FIG. 2 is a vertical sectional front view thereof.
FIG. 3 is a view taken along the line III-III of FIG. 1, and the same or corresponding parts as in FIG. In the discharge end drainage joint 20 shown in the drawing, a lateral connection port pipe portion 21 to which a site main horizontal pipe 17 is connected is provided at an appropriate position on its peripheral wall.
Is provided. The lateral connection pipe portion 21 is formed with an opening at an eccentric position with respect to the axial center as shown in FIG. 3 in order to swirl the inflowing and draining water from the in-site lateral main pipe 17 along the inner wall of the discharge end drainage joint 20. Has been done. The discharge end drainage joint 20 is formed in the shape of a covered cylinder whose joint body has a diameter larger than the diameter of the lateral main pipe 17 or the like in the site and whose lower end is open. Further, a relief vent pipe connection port 22 is provided at the upper end of the discharge end drainage joint 20. A spiral flow straightening plate 23 is provided along the inner wall surface of the upper portion of the discharge end drainage joint 20. The straightening plate 23 is configured such that drainage from the lateral main pipes 17 and the like in the site 17 into which the drainage 20 for the discharge end flows is discharged.
It prevents it from colliding with the inner wall of the and jumping up. FIG. 4 is a vertical sectional side view of a drainage joint for a double-layer pipe type discharge end according to a second embodiment of the present invention, FIG. 5 is a vertical sectional front view thereof, and FIG. 6 is a view taken along the line VI-VI of FIG. It is a figure, and the drainage joint 20 for discharge ends by this 2nd Example is a joint inner pipe 20A and a joint outer pipe 2
It has a two-layer pipe type structure with 0B, and its joint inner pipe 20
A sideways connection port tube portion 21 is provided at A. Therefore, in the case of the second embodiment, a ventilation path is formed between the joint inner tube 20A and the joint outer tube 20B, and this ventilation path is open to the atmosphere. Incidentally, Japanese Patent Application No. Sho 61-276820, which is the forefront of the applicant and the applicant.
The horizontal main pipe may be a double-layer horizontal main pipe by using the same leg joint of the double-layer pipe structure as the "two-layer pipe leg drain joint" in this case. In this case, not only the horizontal main pipe system but also the drainage system It can be an effective means of keeping the whole at about atmospheric pressure. Here, the swirl open flow of the drainage discharged from the lower end of the joint inner pipe 20A does not block the ventilation path between the joint inner pipe 20A and the joint outer pipe 20B, so that the joint outer pipe is 20B is formed to be shorter than the above-mentioned inner pipe 20A by a dimension L. The other construction of the second embodiment is the same as that of the first embodiment. The drainage joint 20 for the discharge end is applied to the double-layer pipe stand pipe system shown in FIG. The two-layer pipe standing pipe system of FIG. 8 corresponds to the two-pipe type pipe system of FIG. 9, and the same or corresponding parts in both of these systems are designated by the same reference numerals and duplicate description will be omitted. That is, the two-layer pipe vertical pipe system of FIG. 8 has a two-layer pipe structure in which each of the drainage vertical pipe 1, each floor intermediate joint 3 and the downstream side drain vertical pipe 15 is composed of an inner pipe and an outer pipe. , The inner and outer pipes form a ventilation path open to the atmosphere by the mutual pipes. Therefore, the ventilation pipe 5 in FIG. 9 is unnecessary. In addition, the horizontal main pipes 17 in the site in the double-layer vertical pipe system in Fig. 8 consist of single pipes. Therefore, the discharge end drainage joint 20 of the second embodiment shown in FIGS. 4 to 6 has the single-pipe sideways connection port pipe portion 21 connected to the joint inner pipe 20A at the body eccentric position. The horizontal main pipes 17 on the above site in Figure 8 are connected. FIG. 7 is a vertical cross-sectional view of a drainage joint 20 for a two-layer discharge end according to a third embodiment of the present invention. The lateral connection port pipe portion 21 of the drainage joint 20 for a discharge end according to the third embodiment is an inner pipe. It has a two-layer tube structure composed of 21a and an outer tube 21b. Therefore, in the drainage system to which the discharge end drainage joint 20 of the third embodiment is applied, the on-site horizontal main pipe 17 in FIG.
As shown in FIG. 7, a two-layer pipe structure is formed by an inner pipe 17a and an outer pipe 17b, which are connected to these inner pipe 17a and outer pipe 17b.
The other structures in the third embodiment are the same as those in the first embodiment. Also, the lateral connection port pipe portion 21 of the discharge end drainage joint 20 of the third embodiment has a two-layer structure, and the inner pipe 21a thereof has a horizontal main pipe on the site consisting of the single pipe shown in FIG. May be connected to open the outer tube 21b to the atmosphere.
Further, although the lower end of the drainage joint 20 for the discharge end of each of the above-described embodiments is open, a discharge pipe is connected to the lower end so that the drainage is discharged into the drainage tank T via this discharge pipe. Good.

【The invention's effect】

As described above, according to the discharge end drainage joint of the present invention,
In the drainage system and the ventilation system, by controlling the flow of drainage when advancing and opening the vertical pipe that handles the drainage of each floor across the multi-story floors, the horizontal horizontal pipe that receives this, and the horizontal pipe from the lowermost vertical pipe to the horizontal main pipe. The conventional problems can be solved, and the complicated piping system can be simplified, so that the construction can be simplified. That is, the drainage flowing in from the tangential direction to the body axis of the drainage joint for the discharge end collides with the inner wall of the joint body at a deep angle and becomes a swirling flow along the inner wall of the joint body as it is. A pipe wall flow is formed in the joint body while amplifying the swirl flow by the portion. Then, the flow velocity of the wastewater forming the pipe wall flow is reduced due to its viscosity, which suppresses the jumping phenomenon and also provides a silent effect by reducing the impact. In addition, even if the flow direction is changed by the discharge end drainage joint, a swirling flow forms a vent core in the vertical pipe system, the expansion system, and the horizontal main pipe system, so that smooth mutual communication is achieved across the entire drainage system. It can be maintained, it is maintained at about atmospheric pressure, and it is possible to prevent the seal water from breaking. Also, in particular, by the rectifying plate in the drainage joint for the discharge end,
Suppresses the splashing of wastewater that collides with the inner wall of the drainage joint for the discharge end described above, and reliably prevents the inflow connection port of the expanded horizontal main pipe from being blocked, and promptly guides it to the downstream side. For abnormal pressure rise in the system pipe pressure, maintain the pressure balance by replenishing or discharging air from the two-layer structure ventilation path through the ventilation pipe from the ventilation connection port above the discharge end drainage joint. Has the effect of.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a vertical sectional side view showing a single pipe type discharge end drainage joint according to a first embodiment of the present invention, and FIG. 2 is a vertical sectional front view thereof.
FIG. 3 is a view taken along the line III-III in FIG. 1, FIG. 4 is a vertical sectional side view of a drainage joint for a double-layer pipe type discharge end according to a second embodiment of the present invention, and FIG. 5 is a vertical sectional front view thereof. , Fig. 6 is VI-V of Fig. 4.
FIG. 7 is a vertical side view of a drainage joint for a two-layer pipe type discharge end according to a third embodiment of the present invention, and FIG. 8 is a two-layer pipe standpipe drainage system according to an embodiment of the present invention. Piping configuration diagram,
FIG. 9 is a piping configuration diagram of a conventional two-pipe type drainage system. In the figure, 1 is a drainage vertical pipe, 17 is a horizontal main pipe in the site (horizontal main pipe), 20 is a discharge end drainage joint, 20A is a joint inner pipe, 20B is a joint outer pipe, 21 is a lateral connection pipe portion, and 23 is The current plate and T are drainage tanks.

Claims (3)

[Claims] 1. A horizontal main pipe that is horizontally expanded is connected via a leg joint to a drainage vertical pipe that is in charge of drainage on each floor that extends to multiple floors.
In the drainage joint for the discharge end of the drainage piping system that is attached to the discharge end of this horizontal main pipe and transfers and discharges the above drainage into the drainage tank of the basement floor of the building, etc. It is formed in a cylindrical shape with a large and lower end into the drainage tank and has a joint body portion, and the horizontal direction of the horizontal main pipe is introduced so that the drainage flows from the horizontal main pipe in a tangential direction with respect to its axis. While connecting the main pipe to the joint body, a vent pipe connection port is provided in the upper end blocking wall of the joint body, and a swirl flow is given to the inflow and drainage from the horizontal main pipe into the joint body.
And, when the drainage from the horizontal main pipe moves from the horizontal direction to the vertical direction along the inner wall of the joint body, it is configured so that a mutual flow of air is generated between the horizontal main pipe and the horizontal main pipe. In the body, for suppressing the splashing of the drainage flowing from the horizontal main pipe and colliding with the inner wall of the joint body, for promptly guiding the inflow drainage to the vertical downstream side without blocking the inflow connection port of the horizontal main pipe. A drainage joint for a discharge end, which is provided with a straightening vane. 2. The drainage joint for the discharge end is a joint inner pipe to which the horizontal main pipe for horizontal deployment is connected, and a joint outer pipe forming a ventilation path open to the atmosphere between the joint inner pipe and the joint inner pipe. The drainage joint for a discharge end according to claim 1, wherein the drainage joint has a two-layer pipe structure in which a ventilation path is communicated with the inside of the joint inner pipe. 3. The lower end of the outer joint pipe is higher than the lower end of the inner joint pipe to prevent the ventilation passage from being blocked by the swirl open flow of the drainage discharged from the lower end of the inner joint pipe. It is comprised, The drainage joint for discharge ends of Claim 2 characterized by the above-mentioned.