JPH0141832Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a deodorizing device for drainage pipes, and is a deodorizing device for drainage pipes installed in sewage basins installed in drainage pipes in general households. The present invention relates to a configuration for water-sealing an opening.

(Prior art) In order to prevent odors and gases generated in sewage mains from entering buildings,
Sewage piping is installed so that waste water from washrooms, etc. is connected to the main sewage pipe outside the residential area via drainage basins installed at appropriate locations within the residential area. In order to prevent odors from the drain pipes in the residential area from entering the building, various types of traps are installed near the outlet of the drain pipes in kitchens, bathrooms, washrooms, etc., or where the drain pipes join the main drain pipe. This prevents odors from entering the drain pipes from entering the building. However, if for some reason the trap described above is not installed, or if the trap effect is not achieved even if the trap is installed, the odor from the main sewage pipe will not be detected because the drainage basin in the residential area does not have a trap device. There is also the danger that the gas may directly enter the building and ignite the gas, causing an explosion.

Furthermore, due to such problems, a deodorizing device as shown in FIG. 1 has been conventionally used. This deodorizing device has a structure in which a flat cylindrical deodorizing tube 3 with an open bottom end is connected to a drain pipe 2 inserted into the wall 1 of a rectangular concrete cesspit. A through hole 5 is opened in the flat part 4, and this through hole 5
is fitted onto the outer periphery of the opening of the drain pipe 2, and the flat part 4
is in contact with the inner surface of the wall 1 of the sewage basin, the protruding piece 6 at the upper end is fixed to the wall 1 of the sewage basin with nails 7, etc., and the periphery of the flat part 4 is fixed to the wall 1 of the sewage basin with mortar. It is becoming.

A siphon box having a structure described in Japanese Patent Publication No. 47-23468 is also known. This siphon box has a plurality of inlet pipes connected and opened at the same horizontal plane position on the circumference of the basin, and a suction pipe connected to the drain pipe is connected to this basin at the same horizontal plane position as the connecting opening position of the inlet pipes. The structure is such that the suction pipe is bent downward within the basin, and the open end of this suction pipe is directed downward, so that the wastewater accumulated in the basin is discharged by a siphon effect.

(Problems to be solved by the invention) In the conventional deodorizing device for a cesspit shown in FIG. 1, the deodorizing tube 3 cannot be removed from the wall 1 of the cesspit.
Moreover, since the deodorizing tube 3 protrudes into the cesspit from the wall 1 of the cesspit, it becomes an obstacle when cleaning the cesspit, and since the mounting surface of the deodorizing tube 3 is a flat surface 4, the cylindrical shape There were problems such as not being able to install it in a sewage basin.

Furthermore, in the siphon box described in the above-mentioned Japanese Patent Publication No. 47-23468, when water has been drained from the suction pipe to the drain pipe by the siphon action, the lower end opening surface of the suction pipe opens downward to the atmosphere, and the sewage There is a problem that odors and gas generated in the main pipe flow into the pipe and enter the building.

In view of the above-mentioned problems, the present invention provides a deodorizing device in which the deodorizing cylinder is detachable inside the sewage basin, which facilitates the cleaning of the sewage basin, and which can also be attached to either rectangular or cylindrical sewage basins. be.

[Structure of the idea]

(Means for Solving the Problems) The deodorizing device for a drainage pipe of the present invention is fitted and fixed to the circumference of a drain pipe that protrudes and opens into a sewage basin, and a locking part is formed to prevent it from coming off. a deodorizing cylinder having a collar and a locking part that is fitted in circumference of the collar and removably engaged with a locking part of the collar, a fitting opening protruding from one side of the upper part, and an open lower end; It is characterized by consisting of the following.

(Function) In the deodorizing device for a drainage pipe of the present invention, when the fitting opening of the deodorizing cylinder is fitted into the collar disposed in the sewage basin so that the engaging parts engage with each other, the lower end of the deodorizing cylinder An opening opens below the water surface of the cesspit and the drain pipe is sealed. When cleaning the interior of the sewage basin or the odor-proof tube, the fitting opening of the odor-proof tube is removed from the collar and the odor-proof tube is taken out from the sewage basin.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 2 to 10.

Reference numeral 8 denotes a concrete sewage basin, which is formed into a cylindrical or prismatic shape, and has a communication opening on one side with a domestic drainage pipe 9 through which wastewater is introduced from the washroom, bathroom, kitchen, etc. in the house, and on the other side, this sewage is introduced. A drain pipe 11 that drains water from the basin 8 to a main drainage pipe 10 outside the residential area is opened in communication, and the open end 12 of this drain pipe 11 is connected to the peripheral wall 1 of the sewage basin 8.
It protrudes a little more inward than 3.

Reference numeral 14 denotes a collar made of vinyl chloride resin, which is externally fitted onto the open end 12 of the drain pipe 11 and fixed with adhesive, and whose inner diameter formed at one end is the same as that of the drain pipe 11.
An annular step 15 having an inner diameter equal to the inner diameter of the drain pipe 11 is engaged with the end face of the drain pipe 11. Furthermore, a pair of locking portions for preventing slippage, for example, engaging protrusions 16, 16, are provided at relative positions on the outer circumferential surface of the collar 14 in a central circumferential direction in the width direction.

Reference numeral 17 denotes a deodorizing cylinder made of vinyl chloride resin, which is a flat hollow cylinder having an opening 24 at the lower end, and a through hole 18 having the same diameter as the inside diameter of the drain pipe 11 is opened at the upper part of one side of the flat peripheral wall. The collar 1 is connected around the through hole 18 via an annular stopper surface 19 that abuts the outer surface of the annular stepped portion 15 of the collar 14.
A cylindrical fitting opening 20 which is externally fitted into the opening 4 is integrally formed to protrude outward. Further, on the inner periphery of the fitting opening 20, a pair of locking portions, such as grooves 21, 21, which are fitted into the protrusion 16 of the collar 14, are formed facing each other in the circumferential direction. groove 21,
Extensions 22, 22 are formed by extending one ends of opposite ends of the longitudinal direction of the grooves 21 to the same length as the groove 21, and one side of each of the extensions 22, 22 is provided at the opening edge of the fitting opening 20. Notch grooves 23, 23 that communicate with each other are formed.

Note that the fitting opening 2 between the collar 14 and the deodorizing tube 17
An O-ring may be interposed between the two.

Next, the operation of the above embodiment will be explained.

Insert the drain pipe 11 into the outlet 25 of the sewage basin 8,
The open end 12 is slightly protruded into the sewage basin 8. Next, attach the collar 14 with adhesive applied to the inner surface to the drain pipe 1.
It is fitted into the open end 12 of 1 and fixed. At this time, the horizontal position of the collar 14 in the sewage basin 8 is adjusted so that the lower end opening 24 of the deodorizing cylinder 17, which is next fitted into the collar 14, faces directly below in the sewage basin 8. Next, the deodorizing tube 17 is tilted slightly in the direction in which the fitting opening 20 is rotated so that the positions of the notched grooves 23, 23 cut out in the opening end surface of the fitting opening 20 match the positions of the protrusions 16, 16 of the collar 14. By inserting the fitting opening 20 into the collar 14 and rotating the deodorizing cylinder 17 so that its opening 24 is located directly below, the extension 2 inside the notch grooves 23, 23 is removed.
The concave grooves 21 and 21 are engaged with the protrusions 16 and 16 of the collar 14 from 2 and 22, and the fitting opening 20 of the deodorizing tube 17 is engaged with the collar 14. The opening 24 of the deodorizing tube 17 is located below the opening end 12 of the drain pipe 11 and opens below the surface of the sewage collected in the cesspool 8, so that the opening end 12 of the drain pipe 11 is odor-proof. Cylinder 17
The drain pipe 11 is sealed to block odor and gas in the drain pipe 11.

Next, when removing the deodorizing tube 17 from the drain pipe 11, rotate it until the cutout groove 23 of the fitting opening 20 matches the protrusion 16 of the collar 14, and then move the deodorizing tube 17 in the direction of pulling it out from the collar 14. As a result, the deodorizing tube 17 escapes from the sewage basin 8.

Note that a groove and a notch corresponding to the groove 21 and the notch groove 23 are formed on the outer periphery of the collar 14 instead of the protrusion 16, and a protrusion corresponding to the protrusion 16 is formed on the inner periphery of the fitting opening 20. may form. Also, protrusion 1
It is also possible to form one or more pairs of the collar 14 and the fitting opening 20, respectively.

Further, the deodorizing cylinder 17 and the fitting opening 20 can also be formed into an elbow shape.

[Effect of idea]

According to the present invention, the deodorizing cylinder can be removed from the collar and taken out from inside the sewage basin, which is convenient when cleaning the inside of the sewage basin or removing blockages from drain pipes. In addition, the fitting opening is formed protruding from the deodorizing cylinder and is fitted into the drain pipe protruding into the cesspit, so whether the cesspit is cylindrical or prismatic, the deodorizing cylinder can be fitted to the drain pipe. It can be worn and supported. Furthermore, since a collar is fitted and fixed to the open end of the drain pipe and a locking part is formed on this collar to prevent it from coming off, it is easy to form the locking part, and the collar can be rotated separately from the drain pipe. The position of the locking portion can be adjusted, and the deodorizing cylinder to be engaged with the locking portion via the locking portion of the fitting opening can be positioned.

[Brief explanation of drawings]

Fig. 1 is a vertical side view showing the installation state of a conventional deodorizing tube, Fig. 2 is a side view showing the usage state of the deodorizing device of the present invention, and Fig. 3 is a longitudinal side view of the same deodorizing device.
Figure 4 is an enlarged longitudinal sectional side view of a portion of the same as above, Figure 5 is a rear view of the deodorizing cylinder fitted with the collar as above, Figure 6 is a bottom view of the same as above, Figure 7 is a side view of the collar as above, Figure 8 FIG. 9 is a longitudinal sectional side view of the fitting opening of the deodorizing tube, and FIG. 10 is a plan view of a portion crossing the concave groove. 8... Sewage basin, 11... Drain pipe, 14... Collar, 16... Engagement protrusion as a locking part, 17...
Deodorizing cylinder, 20...fitting opening, 21...concave groove as a locking part.

Claims (1)

[Scope of utility model registration request] A collar that is fitted and fixed circumferentially on a drain pipe that protrudes and opens into the sewage basin and has a locking part to prevent it from coming off; and a collar that is fitted circumferentially on this collar and can be freely attached to and detached from the locking part of the collar. 1. A deodorizing device for a drain pipe, comprising a deodorizing cylinder having a locking portion that is engaged with the cylinder, a fitting opening projecting from one side of the upper part, and an open lower end.