JP3469096B2 - How to avoid double traps in trap masque using 90 ° elbow - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for avoiding double traps in a trap box using a 90 ° elbow.

[0002]

2. Description of the Related Art Conventionally, for example, in a cafeteria or a fresh food handling place, when there is a possibility that the residue may mix into the wastewater and cause an obstacle to the public sewer, a so-called 2L type is installed at the outflow point of the floor drainage. A trap masque is installed.

This will be outlined below. In FIG. 3, 5
0 indicates a 2L type trap and this trap indicates 50
Is equipped with two L-shaped traps of L-shaped 90 ° elbows 52 and 53 on the upper and lower sides of the main body 51. The 90 ° elbow 52 on the upstream side is a sanitary device in the building. The sewage gas does not enter, and the main body 51 is detachably attached (detachment device is not shown) so as not to get in the way when cleaning the body 51.
The elbow 53 prevents the sewage gas from the sewage main pipe from flowing back to the drainage facility on the building side, and is further fixed to the main body 51.

Further, the main body 51 is made of concrete, and since the earth and sand flow into it at the same time as the residue such as vegetable waste,
To make it easier to clean, the minimum diameter D is 450 mmφ
It has the same size as that of mud, and the depth H is the same as when rainwater is drained 1
The depth of sealing water is 50 mm or more and 50 to 100 mm. The 90 ° elbows 52 and 53 used in the trap mast 50 are made of hard vinyl chloride or ceramics.

On the other hand, as is well known, it is known that a double trap is prohibited in pipe laying work, especially in home laying work. For example, traps should be trapped in drain pipes that have equipment traps (in principle, for sanitary appliances that are directly connected to drain pipes, each trap has its own trap, but this trap is called an instrument trap). It is known that precautions should not be taken, such as not connecting the toilets, and not letting the drainage from the toilets flow into the trap.

That is, even though the trap is provided on the upstream side, if the trap is provided on the downstream side and the two traps are completely sealed, they are sandwiched between the trap on the upstream side and the trap on the downstream side. The drainage pipe system is in a closed state, that is, it forms a double trap, and as a result, it becomes difficult for the air in the pipe to move, and when drainage flows from there upstream, the drainage capacity drops extremely, Inconveniences such as the air in the pipe being pressed by the water pressure of the inflow water to generate noise, foaming, and the flow of drainage being disturbed, resulting in a longer drainage time and eventually clogging of the pipe. Occurs.

[0007]

However, the above 90 °
In the 2L type trap mas 50 using the elbows 52 and 53, when the formation of such a double trap occurs afterwards (when a double trap is erroneously formed), the upstream 90 °
If the elbow 52 is removed, the double trap can be avoided, but the 90 ° elbow 53 on the downstream side is more firmly fixed to the main body 51, so there is a problem that the main body 51 is rebuilt.

Of course, even if the 90 ° elbow 52 on the upstream side is also removed, since the double trap is not an attachment / detachment device for avoidance, the flowing water surface is smooth so that filth is not accumulated.
That is, the basic condition of the drainage system is not satisfied, and there is a risk of pipe clogging.

In view of the above, the present invention has a main object to easily avoid a double trap in a trap using a 90 ° elbow when a double trap occurs before or after the trap. If floating material such as fats and oils flows into 51, it is reserved and the elbow on the downstream side is fixed so as not to flow down to the sewer main pipe, and the secondary purpose is to avoid the double trap. It is what

[0010]

[Means for Solving the Problems] In order to achieve the above object, the gist of the present invention is as follows: 1) A trap hood having a vertical portion of a 90 ° elbow made of synthetic resin injection molding as a sealing portion is a sealed type. , The mast body is provided with one outflow port, and the elbow integrated with the bucket which is housed in the mout body is arranged close to the outflow side, and is configured as a 1L trap trough When there is an instrument trap on the inlet side of the main body and a double trap is formed by the closed trap, the elbow and the bucket are taken out from the main body and the elbow near the top of the elbow on the ground. Smoothing the drainage flow by adjusting the air pressure in the main body to the main sewer side by cutting the breather hole in the upward small diameter closed cylindrical body or potch integrally molded at the time of molding Together with There is a double trap avoidance method in traps using 90 ° elbows, which is characterized in that the suspended matter in the main body is not allowed to flow down, and 2) The vertical part of the 90 ° elbow made of synthetic resin is used as a sealing part. The trap is a closed type, the mast body is provided with one outflow port, the elbow is provided close to the outflow port side, and the elbow integrated with the freely accommodating bucket is integrated into the 1L type There is an instrument trap on the inlet side provided in the main body of the trap, and it is 2
When forming a heavy trap, take out the elbow from the main body and cut a breather hole near the top of the elbow on the ground without injection molding a potch etc. on the elbow to cut the main body. By adjusting the internal air pressure to the side of the main sewer, the flow of drainage is made smooth and the suspended matter in the main body is prevented from flowing down. There is a trap avoidance method.

Therefore, the present invention includes the following embodiments. When installing an ordinary synthetic resin (for example, PVC) 90 ° elbow trap mast that can be freely removed from the main body through the inspection tube, when the double trap is formed due to the trap muffle, near the top of the elbow Can be made versatile by avoiding the double trap by performing a drilling process such as a drill to avoid the double trap, in particular, without injection molding a potch or the like on the 90 ° elbow.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 is a vertical cross-sectional view of an example device used in an embodiment of the present invention, and FIG. 2 is a partially cutaway enlarged plan view of FIG.

One 9 used in the present embodiment
The trap mast 1 using the 0 ° elbow 2 belongs to the 1L type trap mast, and in particular it is composed of a PVC injection molded product trap muffler with an ABS resin bucket 3, and an inspection tube (not shown).
Diameter of 200 mmφ, Diameter of home piping (not shown) 10
0 mmφ, three (plural) inlets 4 and one outlet 5
It is suitable for a head having a depth of 20 mm, a depth H of 165 mm for mud, and a sealing water depth h of 100 mm (see FIG. 3 for H and h).

Trap for using 90 ° elbow 2 1
Is a masu body 6, an inspection tube (not shown) that connects upward to the masu body 6, a lid (not shown) that closes the inspection tube, that is, it is difficult to discharge sewage gas, and a downward direction to the masu body 6. Bucket 3 with a handle 8 that can be freely taken out in the connected bottomed mud collecting part 7, the main body 6 and the bottomed mud collecting part 7
And a 90 ° elbow 2 which is integrated with the bucket 3 so as to be freely taken out and which is joined to the outflow port 5.

Of course, the 90 ° elbow 2 does not necessarily have to be an elbow bent at an exact 90 °.

[0016] Therefore, when the domestic wastewater (not shown) connected to the inflow port 4 further flows into the main body 6, 9
Sewage main (not shown) from outlet 5 via 0 ° elbow 2
Outflow to.

At this time, solid matter (for example, vegetable waste, earth and sand, etc.) in the miscellaneous waste water is collected in the bucket 3, and the sewage gas from the main sewer is prevented from flowing backward by the 90 ° elbow 2.

Periodically or irregularly taking out the solid matter accumulated in the bucket 3 is performed by opening the lid, grasping the handle 8 and taking out the bucket 3 from the inspection tube. At this time, since the 90 ° elbow 2 is also taken out at the same time, it is possible to clean them after taking them out. Then, the reattachment may be carried out by gripping the handle 8 and pushing it in the main body 6 in the opposite manner.

Here, the horizontal portion 9 of the 90 ° elbow 2 in a side view (not necessarily the horizontal portion, but may be the corner portion; therefore, the top portion or the vicinity of the top portion, that is, the portion near the top portion) 9 is Upward (or sideways) small-diameter lidded (closed) cylinder or potch (hereinafter simply referred to as potch)
Since 11 is integrally molded at the time of elbow injection molding,
If there is an instrument trap in the in-home pipe connected to the inflow port 4, this in-home pipe becomes a double trap because the trap 1 is closed.

Then, when the 90 ° elbow 2 is taken out and the potch 11 is cut (a cutting process such as drilling or scraping is also possible), the 90 ° elbow 2 cancels the trap function, and the body 6 from the potch 11 is removed. The air inside communicates with the sewage main side, and the air pressure inside the main body 6 can be adjusted to smooth the flow of sewage together with the 90 ° elbow 2 for smoothing the flow.

Therefore, in the conventional case, when the double trap was formed, it was necessary to bury the trap masquerade again. In the case of the present embodiment, however, it is 90 ° after burying (of course, before burying). Take out elbow 2 and potch 1
If even 1 is cut and communicated with the main sewer, the double trap can be eliminated.

Therefore, the representative example of the double trap avoidance method in the trap 1 using the 90 ° elbow 2 of this embodiment is that the potch 11 provided near the top of the 90 ° elbow 2 is integrally formed during the elbow injection molding. After molding, the potch 11 is cut (opened) to form a breather hole during double trap molding.

Next, the above-mentioned masu body 6, bottomed mud portion 7, bucket 3 and 90 ° elbow 2 will be described in detail.

As described above, the main body 6 has three lateral inlets 4, 4 ... (Therefore, one of them is likely to be an instrument trap connection) and one outlet 5 in TS. It is composed of the joining port 12, and the upward inspection tube connecting port is the TS joining port 13, and the downward mud part connecting port is the downward direction through the short body part 14 for the TS connecting port. 15
So, each is configured.

Further, a flange 16 or a step is provided at the upper opening of the body portion 14 of the mud portion connection port to squeeze, and the upper opening flange 20 of the bucket 3 is closely fitted to contain solid matter. The bottom mud is prevented from flowing directly into the section 7.

Further, the 90 ° elbow 2 is provided at the inner end of the outlet 5.
A joint surface is formed on the outer end of the horizontal portion 9 through the O-ring 21.

Therefore, the masu body 6 can be used as a mold for injection molding of a body for rainwater sac or a body for simply storing water, and the production cost can be reduced to be inexpensive by utilizing the merit of mass production. .

Next, the bottomed mud collecting portion 7 is made of a PVC-free injection-molded article having a bottomed, substantially cylindrical body, and the upper opening thereof is made up of a TS joining receiving port. 15. Adhesive bonding is performed in the production plant.

Therefore, each of the bottomed mud collecting section 7 and the bucket 3 having large and small depths is produced and appropriately selected (for example, a place where a lot of solids are contained in the wastewater or a drainage facility is used). At the most downstream location, it is convenient to use deep buckets 3), but by simply combining them, trap body 1 can be diversified while making body 6 common.

Next, the bucket 3 is an injection-molded perforated bottom bucket with an integrated handle 8. Because of this perforated bottom, the bucket 3 is placed in the bottomed mud portion 7 where miscellaneous wastewater is collected.
The holes 19 allow the user to carry out the housing work without the resistance of waste water.

The upper opening flange 20 of the bucket 1 has a pair of elbow / main body slide portions 2 on the outlet 5 side.
3, 23 are integrally formed. The elbow / main body slide portion 23 slides and guides the elbow flange 24 for the horizontal opening of the 90 ° elbow 2 and the guide portion 25 provided on the main body 6 in the vertical direction.

Next, the 90 ° elbow 2 has a wall thickness of 3.5 mm.
This is a synthetic resin injection molded product such as ABS. By constructing the vertical part 26 into a square shape with a horizontal cross section of about 100 mm × 115 mm □, the flow passage area is expanded as much as possible and the main body 6
It is brought close to the outlet 5 side. The horizontal portion 9 is the outlet 5.
It has a circular shape that can be connected smoothly.

On the outer periphery of the opening of the horizontal portion 9, a square curved elbow flange 24 is integrally formed, and slide protrusions 27, 27 are provided on the left and right edges of the elbow flange 24 so as to extend along the slide portion 23 for the elbow and main body. And slide up and down.

An O-ring 21 is attached to the outer surface of the curved plate of the elbow flange 24 to seal the outer periphery of the main body 6 on the inner surface side of the outflow port 5 with water. In FIG. 2, 22 indicates a plug.

Since the 90 ° elbow 2 and the bucket 3 are detached from the main body 6 and carried out on the ground, cleaning, mounting, and opening work can be easily performed.

[0036]

EFFECTS OF THE INVENTION According to the present invention, in the case of using the 90 ° elbow, if there is a possibility that a double trap may be formed when the trap is used, it is only necessary to open the vicinity of the top of the elbow by cutting such as cutting. It is possible to eliminate the adverse effect of the double trap formation and smooth the flow of drainage.

Since the cutting work is made of synthetic resin which is not a ceramic pipe or a metal pipe, it can be easily opened, which is convenient for on-site construction.

In particular, a potch or a small-diameter cylindrical body with a lid having a small diameter can be provided by only slightly changing the mold at the time of elbow injection molding, and the opening work of the potch can be performed very easily. It is possible to use a trap avoidance method, and it is also possible to prevent oil and fat accumulated in the main body.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an example device used in an embodiment of the present invention.

FIG. 2 is an enlarged plan view of an essential part of FIG.

FIG. 3 is a conventional example.

[Explanation of symbols]

1 ... Trap, 2 ... 90 ° elbow, 9 ... Horizontal part, 1
1 ... potch

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E03F 5/14 E03F 5/10

Claims (2)

(57) [Claims] 1. A trap type having a vertical part of a 90 ° elbow made of synthetic resin injection molding as a sealing part is a hermetic type, and one outlet is provided in the body of the mast , and is close to the outlet side, and Can be freely taken out to the main body
1L with the elbow integrated with the stored bucket
Formed into a trap, there is an instrument trap on the inlet side of the body,
When a double trap is formed by the closed trap, the elbow and the bucket are taken out from the main body , and an upward small diameter block is integrally formed on the ground near the top of the elbow when integrally forming the elbow. the cylindrical body or raised dot, yellowtail - a the hole is cut open, by adjusting the air pressure within the masu body to sewer main pipe side, while facilitating the flow of waste water, suspended solids in masu body A double trap avoidance method in a trap masque using a 90 ° elbow, which is characterized in that it does not flow down. 2. A trap masque having a vertical portion of a synthetic resin 90 ° elbow as a water seal is a hermetically sealed type, and one muffle body is provided with one outflow port, which is close to the outflow side and 1L with the elbow integrated with the bucket that is freely stored in the main body
Formed into a trap, there is an instrument trap on the inlet side of the body,
When the double trap is formed by the closed trap, the elbow is taken out from the main body, and on the ground, a brim is formed near the top of the elbow without injection molding a potch or the like on the elbow. - a the hole is cut open, by adjusting the air pressure within the masu body to sewer main pipe side, while facilitating the flow of waste water, that it has so as not to flow down the suspended matter in the masu body The double trap avoidance method in the trap trout using the characteristic 90 ° elbow.