JP3222116B2 - Drain basin bottom structure - Google Patents

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 bottom structure having a water sealing cap provided for insect and odor control in a drain basin, particularly an indoor drain basin.

[0002]

2. Description of the Related Art In general, indoor drain pipes are installed in an S-shaped bent portion at a drain inlet, or a water seal trap is structurally formed to prevent insects and odors. However, dust and other solid foreign matter frequently flow into the drainage basin installed mainly outside, and if a water seal structure is provided therein, dust and the like may be clogged in the structure in a short time. Usually, no water seal structure is provided.

The present inventors have previously filed patent applications for the inventions entitled "Floor Drainage Ditch and Related Equipment" and "Method of Construction and Construction of Floor Drainage Ditch and Related Equipment".
No. 4 and No. 2736515 have been registered. However, this floor drain and related facilities are less likely to have joints and clogs on the floor, and are large-scale cooking drains that are easy to clean. It is spreading widely in places and food factories. Therefore, at these sites, drainage basins as related equipment will be installed at the same time, but in the usual simple basin structure, the installation site will be in a state of direct ventilation and communication with the culvert flowing into the sewer. In order to avoid such disadvantages, a water seal cap and a trap structure are provided.

[0004] However, not only the sealing water but also solid matter such as garbage and the like is liable to accumulate in the trap portion consisting of the water sealing cap above the drain opening of the drain basin and the cavity bottom recess below the periphery of the cap. . That is, the solid material that has reached the depression at the bottom of the cell forming the trap immediately before the opening is
The negative pressure caused by the water flow flowing down from the opening opposes the upward gradient to the opening, and goes further upward to the upper end of the opening, but the negative pressure alone may not flow out of the depression. The solids accumulated in the depressions in this way cause odor, so the water seal cap must be periodically removed and washed with a water supply hose. However, if the basin is large, the washing water diffuses. In such a case, the accumulated solids often go around the inside of the pit together with the water or are repelled and rebound from the opening or jump over the opening in a dignified manner.

[0005]

SUMMARY OF THE INVENTION According to the present invention, in order to solve the above-mentioned drawback particularly in the water sealing structure of a floor drainage basin, washing water discharged from a water supply hose accumulates in a depression at the bottom of the drainage basin. An object of the present invention is to provide a bottom structure of a drainage basin in which when solids are washed out and flow into a drain opening of the drainage basin, they are both discharged into a drain passage.

[0006]

In order to solve the above-mentioned problems, the present invention is directed to a drain pipe hanging down from a bottom of a cell, wherein an upper end opening of the drain pipe is located above a lowermost part of the bottom, and the bottom is formed of the opening. A bottom structure of a drainage basin inclined or curved so as to form a water sump around; a) a top surface which is located above the opening to form a water flow introduction interval into the same; A water seal cap having a lower edge which hangs down from the outer periphery of the opening and which has a lower part which is immersed in a water reservoir around the opening like a half-open shutter; b) at least in a region near the opening, At least three water collecting plates having an upper edge or an upper edge higher than a lower end of the upper edge cutout, wherein the height of the upper edge from the opening to the inner surface of the basin is the height of the upper edge. To be more than Two contacting sheets are arranged and erected so as to form an angle of less than 180 ° with each other, each of which is provided with a notch slit for receiving the hanging peripheral edge of the water seal cap. It constitutes the bottom structure of the drainage basin that is to be constructed.

[0007] According to the above arrangement, the washing water that has entered the basin carries the stagnant solids in the sump and is guided to the water collecting plate.
It is rectified toward the opening of the drain pipe. Therefore, solid matter is completely removed from the inside of the basin. In this case, it is desirable that the number of water collecting plates is 3 or more and up to about 5 to 6 sheets.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a vertical sectional view showing an embodiment of an installation structure of two or more floors as a typical example of an indoor arrangement basin.
FIG. 2 is an enlarged view of the right side of FIG. In these figures, reference numeral 1 denotes a metal fire-resistant frame of the type installed on the lower part of the floor base on the second floor or higher, which supports the heat insulating and fire-resistant coating plate 2 on the inside and the metal box on the inner surface of the coating plate 2. 3
Hold the bottom of the Such a fireproof basin structure is intended for use of a firearm below the floor of the installation floor, and the fireproof frame 1 has its upper edge attached to the lower surface of the slab concrete 5 via a mounting member 4 made of angle iron. The slab concrete 5 has a basin housing hole 5 a slightly smaller than the four sides of the frame 1 in advance, and an adjustment step 5 b formed by stepping the edge of the hole. The slab concrete 5 itself is supported by the neda frame 6. The tip of the barrel level adjusting screw 7 abuts on the adjusting stage 5b. The adjusting screw 7 is engaged with and held by an L-shaped fitting supported on the outer surface of the box 3 and protruding outward.

When the installation level of the basin can 3 is adjusted by the adjustment screw 7, the lower fixing mortar 8 is formed on the adjustment step 5 b of the slab concrete 5 until it is flush with the upper end flange edge of the basin can 3. On the upper surface of the lower fixing mortar 8, a waterproof sheet 9 having an opening or an inner end corresponding to the opening of the box 3 is laid. The opening of the waterproof sheet 9 is folded into the opening of the basin 3 so as to guide the permeated water from the joint joint between the floor surface and the basin frame 10 into the basin 3.

The measure frame 10 is installed near the upper end of the measure can 3. The main body of the basin frame 10 is a quadrilateral frame having the same dimensions as the basin box 3, and has a flange-shaped lid supporting step 10a connected to the upper end thereof, a top step 10b formed from the outer edge of the lid supporting step 10a, and a top. An outermost caulking support edge 10c which is stepped down from an outer edge of the step 10b, and a cage support step 10 which extends inward from the lower end of the main body.
d, and a car frame portion 10e hanging down from the inner end of the car support step 10d. The measuring frame 10 is adjusted by an adjusting screw 11 that engages with an L-shaped bracket attached to the outer peripheral surface of the main body.
The installation level from the waterproof sheet 9 is adjusted. The head (lower end) of the adjusting screw 11 is in contact with and supported by a protection plate 12 placed on the waterproof sheet 9 so that the waterproof sheet 9 is not damaged.

The adjusting screw 11 is provided so that the mortar frame 10 leaves a marginal gap with respect to the inner end of the waterproof sheet 9 and the top step 10b is at the same level as or slightly lower than the floor on which the drainage basin is installed. The installation level is adjusted. When the level of the measuring frame 10 is adjusted, the upper fixing mortar 13 is placed on the waterproof sheet 9 by adjusting screws 11.
Is formed in a range including: Soil concrete 14 is formed on the outside of the mortar 13,
An appropriate caulking material 15 for filling the gap between the top step 10b and the interstitial concrete 14 is filled on the 0 caulking support step 10c.

A lid 20 coplanar with the top step 10b is fitted inside the top step 10b, and is placed and supported on the lid supporting step 10a. The lid 20 has, for example, a large number of communication holes 21 with respect to the inside of the measure
On the back surface of the cover plate 22 (FIG. 3) having the reinforcing pieces 23 and 24 crossed vertically and horizontally. A floor drain (not shown) connected to the basin can 3 is provided in the basket supporting step 10d.
The basket 25 for holding the garbage in the waste water and other solids made of solid matter flowing from the container is supported by being hooked on the upper edge thereof. Therefore, basket 25
Is at a lower level than the floor drain connection.

In the embodiment of the drainage basin structure described above, a drain pipe 16 for draining from the basin is provided at the center of the bottom of the basin composed of the refractory frame 1, the refractory covering plate 2 and the basin 3, and this drain pipe 16 is provided. Top opening (drain port) 1
Reference numeral 6a protrudes slightly above the central inner end of the raised bottom surface of the box 3. The lower end of the drain pipe 16 projecting downward from the refractory frame 1 is covered with a refractory cover 2 'as necessary, together with the connection pipe.

The bottom surface of the box 3 is curved so that the slightly outer side of the inner end of the center is the lowest, and the pyramid slope gradually rises from the lowermost part of the curve to the lower end of the side wall of the box 3. ing. The outer end of the bottom surface of the box 3, that is, the lower end of the side wall, is substantially at the same level as the upper end opening of the pipe 16, that is, the drain port 16a. Therefore, the drainage or the like flowing into the container 3 starts to collect from the lowest part of the bottom of the container 3 and is introduced into the drain pipe 16 from the drain port 16a when it reaches or exceeds the level of the drain port 16a. Even if the drainage has flowed into the box 3 and therefore has been introduced into the drain pipe 16,
The aqueous phase below the drain port 16a level remains as it is. In this way, the bottom of the basin 3 below the level of the drain port 16a forms the orbital water reservoir 3a.

A water seal cap 17 is disposed above the center of the bottom surface of the box 3, and its top surface 17a forms a water flow introduction interval with the drain port 16a at the upper end of the pipe. The water sealing cap 17 is detachably fixed to the above position by a pair of gripping fingers 17b serving as central clamping means provided on the top surface 17a by gripping the outer peripheral portion of the drain port 16a. The tip of the hanging peripheral edge 17c sinks into the water phase in the water reservoir 3a, and the cap 1
7 and the gas phase inside the drain pipe 16 and outside the cap 17,
Therefore, the gas phase in the main part of the basin 3 is shut off. On the other hand, since the tip of the peripheral edge 17c of the cap 17 maintains an interval between the bottom of the container 3 and a so-called "half-open shutter shape", it does not hinder the continuous aqueous phase inside and outside the cap 17.

In FIG. 1, FIG. 3 showing the tops of the basin can 3 and the basin frame 10 shown in FIG. 1, and FIG. 4 which is a longitudinal sectional view at the center of FIG. Is indicated by a virtual line 18 to indicate that the position and the number are temporarily set. In this case, the water collecting plate 18 extends from the corner of the side wall of the box 3 to the drain port 1 along the ridge line (diagonal of the square in the plan view) of the slope of the square pyramid at the bottom of the box 3.
6a, the upper edge thereof is inclined so that the area adjacent to the drain port 16a is the lowest in the upright area. However, the height of the upper end edge of the water collecting plate 18 occupies a position slightly higher than the horizontal edge of the drain port 16a even at the end close to the drain port 16a, and thus reliably crosses the peripheral edge 17c of the water sealing cap 17.

FIG. 5 is a partial perspective view of the water collecting plate 18 embodied in the above arrangement, in which the water sealing cap 17 is removed to show the structure of the intersection. A cutout slit 19 for receiving the peripheral edge 17c is formed at the intersection of the water-sealing plate 18 and the peripheral edge 17c of the water seal cap from the upper end. Occupying a desired position 17c 'passing through the lower end 19a. Conversely, the upper end of each water collecting plate 18 other than the notch slit 19 is generally higher than the water surface of the water reservoir 3a. Therefore, two adjacent water collecting plates 1 having a 90 ° interval in the horizontal plane
Even if rapid water supply is performed between the plates 8, a flow that overflows to the drain port 16a is reliably formed between the plates 18. Although the number of the water collecting plates 18 is four in this embodiment, at least three water collecting plates 18 are provided.
It will be understood that if the sheets are at an angle of less than 180 ° with respect to each other with the center of the opening as the origin, the rectifying action to the drain port 16a can be exerted.

FIG. 6 shows that the inner end of the water collecting plate 18 is the drain port 1.
6a, the same height as the upper edge, the drain port 16a
A V-shaped notch 16b for overflow, which is lower than the height of the inner end of the water collecting plate 18, is formed. The depth of the notch 16b is made as deep as the water reservoir 3a can be formed, and the width, the number, and the like can be arbitrarily set. Water board 1
8 As long as the height at the inner end exceeds the overflow level,
There may be some variation with respect to the upper edge of 6a. The other structure is the same as that of the basic type shown in FIG. 5. Even if abrupt water supply is performed between the water collecting plates 18, the increased water flows into the drain pipe 16 from the notch 16 b facing the plate interval. Spills and discharges reliably.

The structure of the two or more floor mounted type embodiment is as described above. Of the relatively small solids that passed through the mesh of the basket 25 above the basin can 3 and flowed into the water reservoir 3a of the basin 3, those that could not survive the inflow of drainage to the drain port 16a were formed as bottom pools. At rest. On the other hand, at the time of washing the box 3 by removing the upper structure such as the lid 20 and the water sealing cap 17, the washing water supplied by a hose between each two adjacent water collecting plates 18 is used for washing. The tendency to spread along the bottom surface of the container or on the edge of the drain port 16a to the right and left and the opposite side is suppressed, and the flow is rectified as a flow with directionality and thickness toward the drain port 16a by the left and right water collecting plates 18. This flow is accelerated like a tsunami on a ria coast, and its thickness is increased.
The solid matter remaining in the bottom is sufficiently dripped and flows into the drain port 16a, so that the part 3a can be completely washed.

FIG. 7 schematically shows the upper surface of the apparatus with the lid removed when the cubic structure is made circular instead of square, and its vertical cross section is the same as FIG. However, in FIG. 7, portions corresponding to the embodiment of FIGS. 1 to 3 use the same reference numerals as those in these drawings, and a description thereof is omitted by adding a dash (′) to the right shoulder. According to such a circular structure, there is no restriction that a floor drain groove connected to this can be formed only in a direction perpendicular to any of the four sides, as in a square-shaped basin. It can be formed.

FIGS. 8 and 9 show examples of a square floor drainage basin for installation on the first floor or between dirt floors which does not require a fireproof structure.
1 to 3 are denoted by the same reference numerals as those in FIGS. 1 to 3, and description thereof is omitted. An appropriate hole is dug in the soil where the basin structure is to be installed, and first, the foundation concrete 26 is formed. In this embodiment, the basin can 3 ′ and the basin frame 10 ′ are formed as respective parts of the integral basin 27, and in its installation, the adjusting screw 11 is engaged with an L-shaped fitting attached to the side surface of the basin frame 10 ′, After setting the horizontal position and the level by bringing the leading end portion into contact with the upper surface of the foundation concrete 26, the fixing mortar block 13 similar to that shown in FIGS. At the same time, the soil concrete 14 including the mortar lump 13 is formed on the entire upper surface of the foundation concrete 26.

The soil concrete 14 flows into the gap between the cell setting hole 26a of the foundation concrete 26 and the integral cell 27 at the time of pouring, and contributes to the complete fixing of the integral cell 27. In this embodiment, the lid 20 'of the measure is provided with water permeability by arranging wedge wires 28 having a wedge-shaped cross section inside the outer side 22', and the rear side of the arrangement is shown in FIGS.
This has vertical and horizontal reinforcing pieces 23 and 24 similar to those of FIG. It is obvious that the drainage basin for installation on the first floor or between the floors constructed as described above operates in the same manner as the embodiment of FIGS.

[0023]

As described above, the floor drain basin of the present invention is a drain basin having a water sealing trap structure, in which a plurality of water collecting plates are provided at the bottom, so that the solid matter accumulated in the trap portion on the bottom of the basin is washed with water. Can be completely removed.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing the entire structure of an embodiment of the type installed on two or more floors.

FIG. 2 is a right enlarged view of FIG. 1;

FIG. 3 is a plan view including a partial cross section showing the upper surface of the structure of FIG.

FIG. 4 is a central longitudinal sectional view taken along line AA of FIG. 3;

FIG. 5 is a partial perspective view showing the basic shape and relative arrangement of a drain opening at the bottom of a drainage basin and a drain plate of the embodiment shown with the water sealing cap removed.

FIG. 6 is a partial perspective view showing a second shape and a relative arrangement of a drain port at the bottom of the drainage basin as in FIG. 5;

FIG. 7 is a plan view showing an embodiment of a circular measure.

FIG. 8 is a vertical sectional view of an embodiment for installation on the first floor or in the soil.

FIG. 9 is a top view of the embodiment of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Masu frame 2 Heat insulation and fireproof covering board 3 Masu box 3 4 Masu 5 Slab concrete 6 Neda frame 7 Adjustment screw 7 8 Lower mortar 9 Waterproof sheet 10 Frame frame 11 Adjustment screw 12 Protective plate 13 Upper mortar 14 Clay concrete 15 Caulking material 16 Drain pipe 17 Water seal cap 18 Water plate 19 Notch slit

Claims (3)

(57) [Claims] 1. A drain pipe having an upper end opening of a drain pipe hanging down from a bottom of a basin is located above a lowermost part of the bottom, and the bottom is inclined or curved so as to form a water reservoir around the opening. In the bottom structure of the basin, a) a top surface which is located above the opening to form a space for introducing a water flow into the opening, and which is suspended from an outer periphery of the top surface and in a water reservoir around the opening; A water seal cap comprising a lower edge immersed in a half-open shutter shape; and b) in a region near the opening, a horizontal upper edge of the opening or an upper edge higher than a lower end of the upper edge cutout. At least three water collecting plates, each having a height of the upper edge from the opening to the inner side surface of the basin being equal to or higher than the height of the upper edge, and two adjacent plates being one with each other.
A drainage basin having a notch slit for receiving and suspending the peripheral edge of the water seal cap, the cutout slits being arranged and erected so as to form an angle of less than 80 °. . 2. The structure according to claim 1, wherein the height dimension of the upper edge of the water collecting plate gradually increases from the opening to the inner surface of the basin. 3. The water-sealing cap has a center clamping means that fits into the outer peripheral surface of the opening without closing the opening when the water-sealing cap is fitted with the water collecting plate. The structure according to claim 1 or 2, wherein