JPH09242174A - Reservoir with elbow - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To reduce the diameter of a storage tank with an elbow type trap as much as possible and to easily take it out for cleaning. SOLUTION: An upward inspection tube receiving port 2, a lateral inflow pipe receiving port 4, another lateral outflow pipe receiving port 5, and a downward bottomed cylindrical body 6 are integrated into a storage tank 1. , The bottomed cylindrical body 6 accommodates the mud reservoir bucket 7 so that it can be taken out from the inspection tube receptacle 2, and the elbow bracket 21 is erected on the mud reservoir bucket 7.
The elbow 8 is attached to the elbow bracket 21, the upper opening 28 of the elbow 8 is connected to the outlet pipe receiving port 5, and the lower opening 27 is exposed to the mud reservoir bucket 7. Therefore, the reservoir basin 1 has a small diameter. At the same time, the mud bucket 7 can be taken out together with the elbow 8 for cleaning.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elbow-equipped storage tank having functions such as deodorization, sedimentation and dust removal.

[0002]

2. Description of the Related Art Generally, drainage facilities are provided with incidental facilities that perform functions such as deodorization, oil and fat blocking, and sand settling. A typical example of the deodorizing device is a trap box. As is well known, this trap box has a PVC drain box with a U trap and an elbow or a chee at the outlet of a concrete drain box with a mud reservoir. It is roughly divided into a reservoir provided with a trap (hereinafter, referred to as an elbow-type reservoir with a trap).

This elbow type trap tank with a trap is, for example,
It is installed in places such as canteens and fresh food handling places where solid substances such as residues mix into the drainage and interfere with the sewage mains, and in drainage pipes that are connected to the kitchen even in general home drainage facilities.

In addition, the following installation standards have been established for the elbow-type trap tank. That is, the trap should be provided and fixed on the outflow side of the basin, the trap should have an inner diameter of 75 mmφ or more and the sealing water depth should be 75 mm to 100 mm, and there should be no backflow of odor. The depth of the basin should be at least 150 mm from the lower end of the trap. It is desirable that the installation standards are established.

By the way, various proposals have been made for the elbow type trap tank with vinyl chloride which meets the above criteria and is made of vinyl chloride. Looking at these proposals, one in which an elbow or a cheek is detachably fixed to the container body (see, for example, JP-A-6-193127) and one in which it is non-detachable (for example, JP-A-6-101263). In the latter, for example, in the above-mentioned Japanese Patent Laid-Open No. 6-101263, an elbow is detachably fixed to the outflow side of the rod to form a trap, and the inside of the rod main body is formed. An elbow trap in which a sediment container (also called a mud bucket or a garbage basket) is housed, and a partition plate integrated with the sediment container is erected between the elbow and the sediment container. The basin basin is introduced.

[0006]

Therefore, an analysis of these proposals shows that in the former case, in the case of an elbow-type trap tank with an elbow removably fixed to the container body, the elbow is removed from the container body. When cleaning, etc., move the elbow once along the pipe axis on the outflow side to the center of the box, remove it, and then take it out of the box. However, there is a problem that it is difficult or impossible to attach and detach the reservoir with a trap.

Also, the above-mentioned Japanese Patent Laid-Open No. 6-1 belongs to the latter.
In the elbow-type trap tank with the elbow described in Japanese Patent No. 01263 gazette fixed to the vessel body in a non-detachable manner, the elbow cannot be taken out, and the elbow and the deposit container are arranged side by side in the vessel body. Therefore, there is a problem that the elbow-type trap tank with a small diameter is not preferable, and that the elbow and the deposit container that are fixed are separately cleaned, which is troublesome.

[0008]

Therefore, the present invention has as its main object to solve these problems, and in particular, it has been narrowed by providing an elbow type trap tank made of PVC having a small diameter. It is intended to be easily buried in a residential area, inexpensive, and to extend the maintenance period. The main points are: 1) Inspection tube or lid frame opening upwards, inflow opening sideways, In a sump formed with another sideways outflow opening and a bottomed cylindrical portion downward, a deposit container having a shape substantially the same as that of the bottomed cylindrical portion is taken in and out of the bottomed cylindrical portion. A small aperture with an elbow, characterized in that the lower opening of the elbow, which is housed so as to be freely joined and is detachably connectable to the outflow or inflow opening, faces the inside of the deposit container. It is in a PVC storage tank, and 2) Contract An elbow bracket is erected on the deposit container of paragraph 1, and the elbow is attached to the elbow, and the elbow is in a small-diameter polyvinyl chloride reservoir, and 3) the inspection tube or the lid frame opening upwards, Sideways inflow opening, other sideways outflow opening, downward bottomed cylindrical portion, respectively, in the reservoir basin, the deposit container is accommodated in the bottomed cylindrical portion so that it can be put in and out freely, An elbow is detachably or non-separably provided integrally on the outflow opening side of the deposit container to form a trap, and at least the upper opening of the elbow and the outflow opening are formed only by the vertical movement of the elbow. The elbow-type trap basin with a trap is characterized in that it is connected, and 4) the elbow-type trap basin with a packing interposed between the upper opening side of the elbow and the outlet opening of claim 3. Yes, again ) An elbow bracket is erected on the outflow opening side of the deposit container according to claim 3, a pair of upper and lower slide guides are formed on the elbow bracket, and the elbow bracket is provided on both sides of the outflow opening of the reservoir. An elbow type trap basin provided with a stationary guide portion that engages with these upper and lower slide guide portions.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to embodiments shown in the accompanying drawings. 1 is a longitudinal sectional view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line A--A of FIG. 1, FIG. 3 is a sectional view taken along the line B--B of FIG. 1, and FIG. FIG. 5 is a longitudinal sectional view of an embodiment, FIG. 5 is a main part view of FIG. 1, FIG. 6 is another main part view of FIG. 1, FIG. 7 is a plan view of FIG. 6, and FIG. FIG. 9 is a side view of a main part, and FIG. 9 is a view of another main part of FIG.

This embodiment is an elbow type trap tank with a trap body composed of a box body having a bottomed cylindrical portion,
It is suitable for PVC storage tanks that can be fitted with inspection tubes or lid frames that have a small diameter (for example, 250 mmφ). By adding a deodorizing function (trap function) to this, drainage, rainwater, or their confluence It is convenient to install water in drainage facilities in small areas, public basins, and even cafeterias and fresh food handling centers.

First, the sump 1 with the elbow type trap will be outlined. Mainly in FIG. 1, the container main body 2 is upwardly directed to the inspection cylinder receiving port (a lid frame for fitting a manhole cover may be directly joined, or an outlet or a rubber ring receiving port) 3,
One sideways inlet for inlet (can be outlet or rubber ring inlet) 4, the other sideways outlet for outlet (can be outlet or rubber ring inlet) 5, downward, deep bottom, In addition, bottomed cylindrical bodies 6 that are slightly squeezed downward are integrally formed. The inlet port 4 is on the same pipe axis as the outlet port 5 in plan view, and is opened upward from the port 5 with a slight water level difference (for example, 20 mm). In the bottom cylindrical body 6, a deposit container 7 having a cylindrical shape with a hole and a bottom and having a substantially same shape and having a large capacity as much as possible is removably placed and accommodated. The bottomed cylindrical body 6 may be configured as a detachable separate body (for example, Japanese Patent Laid-Open No. 7-292).
758).

The reservoir with the trap has a receiving port 5 for the outlet.
The elbow 8 is connected to and forms a trap. The lower opening 27 of the elbow 8 faces the deposit container 7. Therefore, it is convenient to reduce the diameter of the storage container with the elbow type trap.

Reservoir 1 with elbow type trap as described above
When, for example, is used as an auxiliary facility of a domestic drainage facility, drainage containing solid matter flows in through an inflow port (also referred to as an inflow opening) 4a and flows out through an outflow port (also referred to as an outflow opening) 5a, This solid (eg, earth and sand,
Foreign substances such as leaf litter, vegetable scraps, and residues are settled and accumulated in the sediment container 7, and the drainage excluding the solid matter flows out to the sewer main pipe. At that time, odors flow back from the sewage main pipe of the outflow destination to the outflow port 5a, but since this odor is sealed by the elbow 8, it leaks not only into the inflow port 4a but also into the basin body 2. Never.

The solid matter deposited in the deposit container 7 is simultaneously with the elbow 8 as described later, or the elbow 8 is used.
Separately, take out the container and clean it.

In this elbow type trap tank 1 with a trap, in particular, an attempt is made to reduce the diameter while increasing the amount of the mud tank as much as possible, and further, the tank body 2, the deposit container 7, the elbow 8, etc. In order to facilitate cleaning, a structure is adopted in which the deposit container 7 and the elbow 8 are detachably integrated, or the deposit container 7 and the elbow 8 are separated by an adhesive or the like so that they can be simultaneously taken out. ing.

The details of this structure will be described below in "Masu body 2",
The "deposit container 7", "elbow 8", and "packing 34" will be described separately.

First, the "basket body 2" will be described. Mainly in FIGS. 5, 2 and 3, the container main body 2 is a PVC injection molded product, and the inspection tube receiving port 3 is formed as follows.

That is, the house drainage pipe to be connected is 75 mm
If φ-200 mmφ, for example, 90 mmφ, and the opening diameter of the deposit container 7 is about 150 mmφ, the elbow 8 is integrated with the deposit container 7, so that the diameter of the inspection tube receiving port 3 is It is formed to about 200 mmφ. Therefore, even if the diameter of the inspection tube receiving port 3 is expanded from the opening diameter of the deposit container 7 (for example, the container opening diameter 3 vs. the receiving port diameter 4) and the diameter is reduced by the lid frame (not shown). Easy to put in.

The opening of the deposit container 7 is the outlet 5a.
Approximately match the bottom of the tube. Therefore, a step 4b is formed between the inflow port 4a and the deposit container 7, and solid matter may be accumulated, but on the other hand, the injection molding of the container main body 2 can be facilitated.

The overall shape of the bottomed cylindrical body 6 of the basin body 2 is formed so as to approximately match the shape of the deep-bucket-shaped deposit container 7 (substantially the same shape). Then, from the vicinity of the outlet 5a to the upper end portion of the bottomed cylindrical body 6, the outlet 5
A pair of upper and lower slide L-shaped grooves (also referred to as a stationary guide portion) 10 and 10 are formed on both sides of a.

Therefore, the body curved surface of the cylindrical body 6 with a bottom and the vicinity of the outlet 5a is formed by curved surfaces A and B having different radii as shown in FIGS. 3 and 5. Has a radius larger (or smaller) than that of curved surface B, and
The curved surface A occupies two-thirds or more of the body curved surface of the bottomed cylindrical body 6. As a result, the volume of the bottomed cylindrical body 6 is made as large as possible to secure the amount of stored water, and it is possible to deal with a large amount of temporarily discharged drainage.

The pair of vertical slide L-shaped grooves 10 and 1 described above.
By forming 0 and a fitting U-shaped groove 11 connecting the lower ends of these vertical slide L-shaped grooves 10, as will be described later,
The deposit container 7 to be accommodated is accurately positioned, and
This deposit container 7 can be firmly fixed to the main body 2 of the container, and thus the elbow 8 can be accurately positioned and firmly fixed to the outflow port 5a.

Next, the "deposit container 7" will be described.
6, FIG. 7, FIG. 8 and FIG. 2, the deposit container 7 is a PVC or ABS injection-molded product, and a deep-bottom type is adopted in order to maximize the deposit amount. For example, the opening diameter is about 150 mm and the bottom diameter is about 140 mm.
If so, the depth is set to approximately 240 mm.

The bottom 12 of the deposit container 7 has a plurality of holes 1
3 and 13 are provided to drain the drainage and drain the water when the container is taken out.

The body 14 of the sediment container 7 flows out, and the inlet 5
The sides a and 4a orthogonal to the tube axis are formed into a flat surface 15, and a slightly larger space is formed between the a main body 2 and the bottomed cylindrical body 6 to secure a water storage amount and to be always erected. When the handle 16 is moved in and out of the container main body 2, it does not interfere.

However, since a flange 19 described below is extended at the open end of the deposit container 7 and is joined to the inner surface of the bottomed cylindrical body 6, the solid matter directly flows into the bottomed cylindrical body 6. There is nothing to do.

The body 14 is formed with a curved surface 17 having a large radius on the inlet 4a side and a curved surface 18 having a smaller radius on the outlet 5a side in a state where the deposit container 7 is accommodated. To match the curved surface of the bottomed cylindrical body 6. Therefore, the deposit container 7 is approximately joined to the bottomed cylindrical body 6 in a loosely fitted state, but it does not deviate.

Further, 1 is provided on the outer periphery of the opening of the deposit container 7.
A flange 19 formed with two radii is extended, and the flange 5 has a notch on the outlet 5a side at a location where an elbow bracket 21 to be described later is erected and its vicinity 20.

A curved plate-shaped elbow bracket 21 is integrally (integrally) erected on the outlet 5a side of the opening of the deposit container 7. This elbow bracket 2
1, the outer surface of the flange 1 in particular, as shown in FIG.
An edge ridge 22 having the same height as the brim width of 9 is provided,
The solid matter is prevented from flowing into the bottomed cylindrical body 6.

An elbow insertion hole 23 is opened at a location of the elbow bracket 21 facing the outflow port 5a, and a ring-shaped raised portion 24 is provided on the outer periphery and outer surface of the elbow insertion hole 23. . This ring-shaped ridge 24 is lower than the height of the edging ridge 22 described above,
Even if the back surface of the elbow flange 30 of the elbow 8 which will be described later comes into contact with the elbow flange 30, the elbow flange 30 does not interfere with the inner surface of the elbow flange 30 by protruding to the main body 2. Further, on the concentric outer circumference of the ring-shaped raised portion 24, a packing fitting raised portion 25 having the same height as the edging raised portion 22 and partially overlapping is provided.

At the left and right ends and the lower end of the elbow bracket 21, the edging ridges 22 (overlap with a part of the ridge 25 for packing fitting) are provided with the vertical slide L-shaped grooves provided in the pallet body 2. 10 and the insertion pieces 26, 26, 26 which are inserted into the fitting U-shaped groove 11 are formed.
The insert pieces 26, 26 inserted into the vertical slide L-shaped grooves 10, 10 are also referred to as vertical slide guide portions.

Next, the "elbow 8" will be described. The elbow 8 is mainly shown in FIGS. 9A and 9B and FIG.
Is polyethylene or a similar resin, for example, a vinyl chloride injection molded product, the lower opening 27 of which is composed of a normal tubular body,
The upper opening 28 is composed of an eccentric expanded portion 29 having the same tube bottom. An elbow flange 30 is formed at the open end of the eccentric expanded portion 29.
Thus, the elbow 8 is prevented from coming off when it is attached to the elbow bracket 21.

That is, the back surface of the elbow flange 30 contacts the ring-shaped raised portion 24 of the elbow bracket 21 as described above, and the elbow flange 30 and the locking portion 3 are engaged.
The ring-shaped ridge 24 is gripped by facing 1 with 1. Therefore, the locking portion 31 is formed in the eccentric enlarged diameter portion 2
It is formed on the outer surface of the inner part of 9 lower than the ridge 25 for packing.

Therefore, in order to insert and mount the elbow 8 into the elbow insertion hole 23 of the elbow bracket 21 in the vertical state, first, the tube axis of the lower opening 27 of the elbow 8 is inserted horizontally. , Insert it while gradually making it vertical. Next, the upper opening 28 of the elbow 8
If the eccentric locking portion 31 is slanted while the tube axis of is tilted slightly to the upper left in FIG. 1, the elbow insertion hole 2
You can get over three. Then, the upper opening 28
If the tube axis of (1) is made horizontal, the locking portion 31 and the elbow flange 30 can face each other, and the ring-shaped raised portion 24 can be held, and the elbow 8 can be prevented from coming off.

In order to make the lower opening 27 of the elbow 8 as close as possible to the elbow bracket 21, the following structure is adopted.

That is, FIG. 9B (D to D in FIG. 9A)
As shown in the cross-sectional view), the curved outer surface 32 of the elbow 8 is constituted by a normal elbow arc and the curved inner surface 33 is short-circuited as much as possible, so that it is orthogonal to the longitudinal section (see FIG. 9) passing through the pipe axis. It is composed of the surfaces 33a and 33b. Moreover, while the outer curved surface 32 adopts the normal pipe diameter R1, the inner curved surface 33
Is an ellipse to smooth the inner surface of the elbow 8. Note that R2 represents the radius of curvature of the elliptic curved surface. Even in this case, since the drainage rises from the lower opening 27, there is no hindrance to the flow.

Next, the "packing 34" will be described.
In FIG. 3, the packing 34 is made of synthetic rubber and formed in a U packing shape, and further, a thick portion 35 is formed at the U end portion on the inner diameter side. That is, the modified U packing is used.

The packing 34 is mounted between the packing fitting raised portion 25 and the ring-shaped raised portion 24 of the elbow bracket 21 and, in addition, the elbow flange 30.
The thick portion 35 is held on the back surface of the. Therefore, the packing 34 seals the space between the elbow bracket 21 and the main body 2 of the column, and thus seals the outflow port 5a and the elbow 8 to prevent leakage of odor. That is, the deodorizing function is improved. Of course, when the packing 34 is not used, it can be applied to dust removal and oil and fat blocking.

As the packing 34, V packing, W packing, O ring, lip packing, gland packing, etc. of different shapes can be used.

Next, another embodiment of the present invention will be described. A step 4b was formed between the pipe bottom of the inlet 4a and the opening of the deposit container 7 in the above-mentioned basin body 2,
In the case main body 2A of the embodiment shown in FIG.
b is eliminated as much as possible to prevent solids from staying. That is, the flange 19A of the opening 36 of the deposit container 7 is inclined inward, and the outer periphery of this flange 19A is made into the inflow port 4a.
As close as possible to. Therefore, the notch step portion 37 is formed on the outlet port 5a side of the opening 36 of the deposit container 7 so that the attachment of the elbow 8 is not hindered.

The elbow 8 is used in each of the above embodiments.
It has been described that the above is attached to the elbow bracket 21 that is detachably integrated with the deposit container 7, but the present invention is not limited to this, and the deposit container 7 is preliminarily provided with the bottomed cylindrical body 6 of the container body 2. After being placed on or suspended from the deposit container 7, a curved plate (not shown) having an upwardly facing U-shaped notch (which allows the horizontal part of the elbow to be fitted) provided upright on the deposit container 7 is used as an elbow bracket. Between the elbow bracket and the inner surface of the grid main body 2 or in the stationary guide portion formed on the grid main body 2,
The elbow 8 may be attached by inserting the elbow flange 30. In this case, the elbow 8 may be provided with a separate handle for taking in and out, but at the time of taking out, if the deposit container 7 is taken out, the elbow 8 can be taken out together therewith. Is not necessary.

Further, the bottomed cylindrical body 6 does not necessarily have to be a cylindrical body, and when the sump of the present invention is applied to a drain tank, the elbow 8 is connected to the inflow opening.

[0043]

According to the first aspect of the present invention, the bottomed cylindrical body 6 of the container main body is obtained.
Since the deposit container of almost the same shape is housed in the container and the lower opening of the elbow is faced, the elbow-type trap basin with a small diameter can be used in small areas even if the amount of deposit is large. In addition to being suitable, it can be made inexpensive, and can contribute greatly to the spread of drainage facilities and the reduction of the burden on the sewage treatment plant.

According to the second aspect, in addition to the above, since the deposit container and the elbow are integrated, it is possible to take them in and out at the same time, and it is possible to perform work such as cleaning and assembling of the deposit container and elbow that are extremely dirty. In addition to being easy, it is possible to conveniently perform functions such as dust removal and oil and fat blocking.

According to claim 3, in addition to the above, functions such as trap formation and dust removal can be conveniently achieved.

According to the fourth aspect, in addition to the above and, since packing is interposed, a further deodorizing function can be exhibited.

According to the fifth aspect, in addition to the above and, the deposit container and the elbow can be easily put in and taken out, and the connection between the upper opening portion and the outflow opening portion becomes reliable. That is, the elbow can be securely fixed to the outflow opening.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of FIG.

FIG. 3 is a sectional view taken along arrows BB of FIG. 1;

FIG. 4 is a vertical cross-sectional view of another embodiment of the present invention.

5 is a main part diagram of FIG. 1. FIG.

FIG. 6 is another main part diagram of FIG. 1.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a side view of a main part of FIG.

FIG. 9 is a further main part view of FIG. 1.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Reservoir basin with elbow type trap, 2 ... basin body, 5a ... Outflow port, 6 ... Cylindrical body with bottom, 7 ... Deposit container, 8 ... Elbow, 27 ... Lower opening

Claims (5)

[Claims] 1. A reservoir basin in which an inspection tube or a lid frame opening is formed upward, an inflow opening is formed sideways, another outflow opening is formed sideways, and a bottomed cylindrical portion is formed downward. The bottom cylindrical portion accommodates a deposit container having substantially the same shape as the bottomed cylindrical portion so that the deposit container can be inserted into and removed from the bottom cylindrical portion, and can be detachably attached to the outflow or inflow opening in the deposit container. A small-diameter PVC reservoir with an elbow, which is characterized in that the lower opening of the connectable elbow is exposed. 2. A small-diameter PVC reservoir with an elbow, wherein an elbow bracket is erected on the deposit container according to claim 1, and the elbow is mounted on the elbow bracket. 3. A sump basin in which an inspection tube or a lid frame opening is formed upward, an inflow opening is formed laterally, another outlet opening is formed laterally, and a bottomed cylindrical portion is formed downward. A sediment container can be stored in and out of the bottom cylindrical part,
An elbow is detachably or non-separably provided integrally on the outflow opening side of the deposit container to form a trap, and
At least, the elbow-type trap basin with a trap, wherein the upper opening of the elbow and the outflow opening are connected only by the vertical movement of the elbow. 4. An elbow-type trap tank with a trap in which packing is interposed between the upper opening side and the outflow opening of the elbow according to claim 3. 5. An elbow bracket is provided upright on the outflow opening side of the deposit container according to claim 3, a pair of vertical slide guide portions are formed on the elbow bracket, and the outflow opening of the sump basin is formed. An elbow-type trap basin with traps provided on both sides of the section with stationary guides that engage with these vertical slide guides.