JPH11200472A - Interception inlet in drainage equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To capture foreign matters drained by mistake by integrally erecting an interception needle with the invert part in the vicinity of a falling point of waste water in the spherical surface-shaped or conical measure invert part to flow down waste water in a waterfall shape or a stairs shape. SOLUTION: A public pit 1 is constituted of a cylindrical vinyl chloride pipe body by uniting an inspection cylinder 2 and a pit main body as one body so that the spherical surface-shaped invert part 3 is arranged in the bottom part. The outflow port part 4 where the lowest bottom part of the invert part 3 is made to coincide with the pipe bottom, is projected under this inspection cylinder 2. The recessed interception needle installing part 16 is projected downward in the central part or the invert part 3 by integral molding by using this space by floating the lowest bottom part outside surface of the invert part 3 by arranging the inspection cylinder extension part 6 on the outer periphery of this invert part 3. An interception needle 17 made of stainless steel is erected in this installing part 16 by a thread-like engaging part 18 so as to become a falling point position of waste water from the inflow port part 12 to capture foreign matters drained by mistake.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called interceptor in a drainage system, and more particularly, to an interceptor which is integrated with the interceptor so as to prevent the interceptor from being taken out when taking out foreign substances caught by the interceptor. It's about intercepting.

[0002]

2. Description of the Related Art Generally, drainage facilities (sewerage facilities) include:
There is a device called an interceptor, which blocks, separates and captures the flow of harmful / hazardous, undesired or reusable substances contained in wastewater, and allows only the remaining water to flow naturally. Refers to an appliance or device that can be drained.

[0003] Therefore, as main interceptors, a grease interceptor, an oil interceptor, a sand interceptor, a hair interceptor, a plaster interceptor, a laundry interceptor, and the like are generally known. It consists of dedicated equipment and is installed in a place convenient for maintenance and inspection. In particular, the substance intercepted by the interceptor
Since the dust gradually accumulates in the apparatus, the structure is such that it can be easily cleaned periodically.

On the other hand, in addition to such a single-purpose interceptor, a filter for preventing clogging which is detachably attached to a permeated rainwater basin.
(For example, baskets and nets) (for example, Japanese Utility Model Application 3-2082
Is a device for preventing the flow of undesired substances, and a filter that can be removed and sunk in a mud pool of rainwater mast other than sewage masu (for example, Japanese Utility Model Laid-Open No.
Japanese Patent Application Laid-Open No. 0-193204) is also an apparatus for preventing undesired sludge from flowing down.

[0005] Therefore, these devices can be said to be semi-blocking because these devices are composed of a filter separately from themselves and can be taken out together with foreign substances.

As one of such semi-blockers, the following proposal has been made (JP-A-9-828).

[0007] That is, for example, a screen in which a barbed wire as shown in Japanese Patent Publication No. 51-4353 is formed in a grid-like manner is provided between an inlet and an outlet of a sewage tank.
A semi-blocking device has been proposed in which the outlet is entirely provided so as to close the outlet, the needle is projected toward the inlet, and the screen is freely taken out of the inspection tube.

[0008] According to this semi-blocking method, a large-sized substance that is not dissolved in water (also referred to as foreign matter in the present specification, tissue paper, sanitary products, raw vegetables, underwear, etc.) is captured and discharged to a sewage treatment plant. Although it is said that it is possible to reduce the load on the screen and to prevent damage to the pump blades and clogging of sewer pipes and pipe valves, there are the following problems.

[0009]

In other words, in the semi-blocking of such a proposal, a screen is separately manufactured and provided so as to be freely taken out.
As a whole it becomes increasingly expensive.

Since the screen is formed of a barbed wire grid, according to experiments conducted by the present inventors, if foreign matter is caught, more and more clogging occurs quickly, and at all, periodic cleaning ( For example, once a week), and if the grid is enlarged (roughened), it does not function as an intercept.

One of the embodiments in the above-mentioned publication is that a barbed wire is sunk in a gutter-shaped invert of a sewage tank, and a screen in which this needle is inclined toward an inflow port is provided so as to be freely taken out. However, sewage squid is different from rainwater squid, but originally, an invert is cut at the bottom to allow the sewage to flow out at once, thereby preventing the generation of offensive odors. Obstructs the flow of the invert, and thus
Does not perform the function of invert.

[0012] Since the needles are provided in the shape of a sword, there is a danger that the needles may be used to handle dangerous articles that may hurt the body.

Accordingly, the present invention provides a novel interceptor which, when an intercepting member is taken out by itself and which takes out a foreign object trapped by the intercepting member, cannot be taken out in one place with the intervening member. Its main purpose is to make it widely available, and its secondary purpose is to solve the above-mentioned problems.

[0014]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a spherical or mortar-shaped inverting portion into which sewage flows down in a waterfall or stairs, wherein The gist of the present invention is that a collecting needle is erected in the vicinity of the drainage unit in such a manner that the collecting needle is erected integrally with the invert portion.

Therefore, the present invention includes the following embodiments. The main body is a check tube, the invert part is spherical, and one outlet part is protrudingly provided. These are made of PVC-injection-molded water-fallable public mast, At the approximate center of this spherical invert part.
Unlike the multi-needle type, which has a standing needle for collecting books, it facilitates handling such as easy removal of foreign matter, and can be changed to easily block the public stock of stock.

[0016] A so-called PVC drop square with an outlet portion facing downward, which is changed to a blockage using a long needle to prevent clogging of the pipe.

[0017]

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 partially cutaway overall view of an embodiment of the present invention, FIG. 2 is a plan view of members used in FIG. 1, FIG. 3 is a plan view of FIG. 1, and FIG. 4 is a detailed view of a main part of FIG.

First, a PVC injection injection box 1 to which this embodiment is applied will be described. Generally, the slope of the home canal connected to the public masque is determined,
In the case of installing a public mud on slopes such as hills, a so-called waterfall plumbing pipe is used which is directly connected to the side wall of the main body and is connected to a step (for example, see Japanese Utility Model Laid-Open No. 9-567).

For such a waterfall pipe, the public truss 1 according to the present embodiment is constructed of a tubular PVC pipe having an inspection tube 2 and a truss body integrated into one, and a part of a sphere is provided at the bottom thereof. Is provided.

At the lower part of the inspection cylinder 2, a single outlet 4 whose bottom is made to coincide with the bottom of the spherical inverted part 3 is projected.

Therefore, a gutter-shaped step 5 is formed in the spherical inverted portion 3 so as to be smoothly connected to the outflow portion 4. The starting point of the gutter-shaped step 5 is provided at the center of the spherical inverted portion 3 (the center of the inspection tube 2).

Incidentally, these inspection cylinders 2 and spherical invar
If the gutter part 3 and the outlet part 4 are integrally formed by injection molding, an easy-to-use and extremely inexpensive waterfall plumbing plumbing 1 with improved productivity can be obtained. Of course, the present invention is not limited to PP, FRP, concrete and concrete.
May be combined with a synthetic resin inverter.

In addition, on the outer periphery of the spherical inverting portion 3, an inspection tube extending portion 6 corresponding to a so-called mud ring is provided, and the outermost bottom surface of the spherical inverting portion 3 is floated to provide a slight space. Is formed. Therefore, the blocking needle mounting portion 16 described later can be protruded downward in this space.

Further, at the upper end of the inspection tube 2, there is a socket type connecting portion 7.
Are formed so that a check tube for refilling and a lid member (both not shown) can be connected thereto, and a receiving-type connecting portion 8 is also formed at the outlet 4 to be connected to a sewage main pipe. An attachment pipe (not shown) can be connected.

Then, the public truss 1 is brought to the construction site, and one inlet 9 is provided on the side wall of the inspection tube 2 in accordance with the direction and height of the home drainage pipe (not shown) at the site. Pierced with a ruso, etc., and into the pierced inlet 9,
As shown in FIG. 2, an inflow portion 12 around which an abutment flange 10 abuts on the outer surface of the inspection tube side wall is provided by adhesive bonding.

The inlet 12 has a receiving-type connecting portion 11
A projection 13 is provided on the opposite side, and a pair of rubber ring locking projections 14 are provided outside the socket-type connecting portion 11.

Incidentally, in FIG.
Shows a perforation limit line when drilling, and this perforation limit line 15
Since the inflow port 9 is formed in the inside, the inflow port section 12 and the outflow port section 4 communicate with each other in a waterfall shape or a step connection shape.

According to the above-mentioned public masturbator 1, sewage from the home drain pipe flows in a waterfall or step shape from the inflow port 12, flows through the spherical inverting section 3 at a stretch, and flows out of the outlet. Run off to 4.

Here, in the public square 1, a concave blocking needle mounting portion 16 is formed at the center of the spherical inverting portion 3 (a portion where the gutter-shaped step 5 is not formed) at the time of molding. Molded integrally. An intercepting needle 17 is erected by a screwing portion 18 on the intercepting needle mounting portion 16. Therefore, the blocking needle 17 can be located at a point where most of the sewage falls (flows down) from the inlet 12.

The intercepting needle 17 is generally attached at a production factory, and in particular, cannot be taken out together with foreign matters after the public mast 1 is installed. .

The blocking needle 17 as described above is preferably made of stainless steel such as SUS, and may be made of a resin called super engineering plastic in some cases. In addition, the tip of the intercepting needle 17 is, of course, sharp at the tip so as to pierce a foreign substance.
If it is 15 mm or less, there is almost no obstruction amount, and if it is 50 mm or more, it is not preferable because it cannot be submerged by the standard flow rate or the relationship with the perforation limit line 15, and 20 mm to 50 mm is preferable.

Next, the manner in which the blocking needle 17 is erected will be described. In FIG. 4, the intercepting needle 17 shown in FIG. 4A is provided with a hole through which the threaded portion 18 of the needle penetrates in the spherical inverting portion 3, and the spherical inverting portion is formed by a flange 19 and a nut 20.
And is erected through the packing with the
In particular, there is no need to provide an intercepting needle mounting portion, and the public stock of stock can be changed to intercept immediately, and there is no need to change the mold for PVC injection molding.

The intercepting needle 17 shown in (B) is obtained by dividing the needle body into two parts and connecting them by a hinge 21. When the intercepting needle is unnecessary, or when inserting a jet hose or the like,
The needle 17 is tilted toward the inflow port 12 side.
Is preferably provided close to the inlet side.

Next, the operation of the public umbrella 1, which is the obstruction, particularly the operation of the obstruction needle 17 will be described.

If sewage containing foreign matter that has flowed due to an error flows down in the form of a waterfall or steps from the inflow port 12, most of the sewage flows down with the intercepting needle 17 as a drop point. (Water-soluble large substance, for example, toilet paper) can be caught or stuck on the collecting needle 17. Then, the public umbrella 1 is opened and, for example, foreign matter can be immediately taken out, and so-called emergency treatment can be performed. Of course, drainage facilities such as public flush toilets are regularly inspected and cleaned.

Since the sewage has a spherical invert, foreign matter or filth hanging on the needle 17 has a sewage flow on both sides thereof along a spherical surface (having a large flow path cross-sectional area). Therefore, the water flow swings to the left and right sides, and the waste water flow later flows out at once, and the dissolving waste is also gradually decomposed and is washed away by the waste water coming later, leaving only foreign matter.

Therefore, only large foreign matter is captured,
As a result, there is little dirt in taking out the dirt, and moreover, the dirt accumulates, and there is no accumulation of sewage due to clogging of the flow path, that is, no more clogging, and no odor is generated.

Although the invert in this embodiment is a spherical invert portion, the present invention is not limited to this, and a mortar-shaped invert portion having a gentle inclination may be used.

In the present embodiment, the public masquerade 1 is used. However, the present invention is not limited to this.

[0040]

According to the present invention, a new obstruction can be provided, so that the load and clogging of sewage treatment can be reduced, and of course, for example, valuable foreign substances that have flowed down by mistake can be captured in the vicinity of the house. In addition, it is convenient, and it is extremely inexpensive and has a high efficiency of blocking foreign matter. However, it does not lose the function of the wastewater invert, i.e., the function of draining wastewater containing waste at once. In particular, the intercepted water-soluble filth gradually dissolves and does not become increasingly clogged.
As a result, the cleaning period can be extended.

[Brief description of the drawings]

FIG. 1 is a partially cutaway overall view of an embodiment of the present invention.

FIG. 2 is a plan view of members used in FIG.

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is a detailed view of a main part of FIG. 1;

[Explanation of symbols]

1 ... Public masu 3 ... Spherical inverted part 17 ... Needling needle

Claims (1)

[Claims] 1. A spherical or mortar-shaped inverting portion through which sewage flows down in a waterfall or step shape, wherein a collecting needle is provided near the falling point of the sewage and the inverting portion. A blockage in drainage facilities characterized by being integrally erected.