JPH0330452Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to improvements in drainage traps provided on building floors, air conditioner trays, etc.

[Background of the idea]

In general, this type of drainage trap has a main body 11, as shown in FIG. A perforated plate 17 is placed on the large diameter cylindrical portion 11a of the main body 11 via the adjustment sleeve 13 and a perforated plate support 15, and a cylindrical opening at the lower end is attached to the small diameter cylindrical portion 11b of the main body 11. The configuration includes a cap 19.
Normally, the water staying at the bottom of the main body 11 closes the gap at the lower end of the cap 19 to prevent air, odor, etc. from blowing up from the drain pipe 21 side.

However, if the floor is not drained for a long period of time, the water inside the main body 11 may evaporate, resulting in a drought condition, the water sealing effect may be lost, and air and odors may blow up.

[Purpose of invention]

The present invention was made in view of such circumstances, and the purpose is to propose a drainage trap that can reliably prevent air and odors from blowing up even when the main body is in a dry state.

[Summary of the idea]

In order to achieve the above object, the present invention makes the cylindrical part of the cap hollow to form a water storage chamber, and provides a water injection plug in the upper part of the water storage chamber, thereby achieving
The weight of the cap is changed by adjusting the amount of water it can hold. When enough water stays inside the main body, it acts as a float and provides the same water-sealing effect as before. However, in times of drought, the cap descends under its own weight, causing the top of the cap to collapse. The small-diameter cylindrical portion of the main body is closed by the portion.

〔Example〕

Hereinafter, preferred embodiments of the drainage trap according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a first embodiment. In the figure, 3
Reference numeral 1 denotes a main body, which has a large-diameter cylindrical portion 31a with an open upper end and a small-diameter cylindrical portion 31b with open upper and lower ends coaxially formed integrally with the bottom thereof. A drain pipe 32 and the like are connected to the lower end of the small diameter cylindrical portion 31b. Reference numeral 33 denotes an adjustment sleeve fitted into the large-diameter cylindrical portion 31a of the main body 31, which changes its height position in accordance with the floor surface 35. A float stopper 37 is formed in the shape of a brim on the inner surface of the adjustment sleeve 33. 39 is a perforated plate holder attached to the upper end of the adjustment sleeve 33, and the perforated plate 4 is mounted on this perforated plate holder 39.
1 is placed.

Reference numeral 43 denotes a cylindrical cap with an open bottom end, and the height of the cap 43 is set to be smaller than the rising length of the small diameter cylindrical portion 31b of the main body 31. The cylindrical portion of this cap 43 is hollow,
The inside is used as a water storage chamber 45. Further, a water filling plug 47 is provided on the top plate of the cap 43.
The amount of water injected into the water storage chamber 45 can be adjusted.

According to the drainage trap configured in this way, when water is sufficiently accumulated at the bottom of the main body 31,
The cap 43 floats up due to buoyancy, acts as a float, and descends as the amount of retained water decreases. That is, it acts as a float. The degree of elevation can be adjusted by adjusting the amount of water stored in the water storage chamber 45 and changing the weight of the cap.

Therefore, when the inside of the main body 31 becomes dehydrated, the cap 43 is lowered by the float action, and the small diameter cylindrical portion 31b of the main body 31 can be closed by the top plate.

Note that when the amount of water during drainage is large, the cap 43 is fixed in contact with the float stopper 37, allowing stable drainage.

When used as a drainage part in an air conditioner, the pressure inside the machine becomes negative than atmospheric pressure, and the weight of the cap 43 needs to be set large. In that case, the amount of water stored in the water storage chamber 45 is increased. This makes it possible to reliably close the trap even during heating operations where no condensed water is produced.

FIG. 2 shows a second embodiment. In this embodiment, the cap 43 is connected to the small diameter cylindrical portion 31b of the main body 31.
The structure includes a screw 49 to be inserted inside. According to such a configuration, the flotation effect increases when a large amount of water is temporarily drained, and at the same time, the siphon effect is canceled while the water becomes easier to drain.

FIGS. 3 and 4 show a third embodiment. In this embodiment, the cap 43 has a brush 51 that comes into sliding contact with the inner surface of the small diameter cylindrical portion 31b of the main body 31. According to such a configuration, the effect of cleaning the inner surface of the small-diameter cylindrical portion 31b can be naturally obtained, and the effect of preventing the cap 43 from moving in the lateral direction can be achieved.

Note that in each of the above embodiments, the cap 43
If a gasket 53 is provided on the lower surface of the top plate, the effect of shielding air, odors, etc. will be further improved.

[Effect of idea]

As explained above, according to the drain trap of the present invention, by providing the cap with a float function, a complete sealing effect can be obtained even in times of drought, and it is possible to reliably prevent odors from blowing up on the floor and to prevent air from blowing up. This is effective for preventing backflow of air in conditioners.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a first embodiment of the present invention;
Fig. 2 is a sectional view showing the second embodiment, Fig. 3 is a sectional view showing the third embodiment, Fig. 4 is a partial plan view of Fig. 3, and Fig. 5 is a sectional view showing the conventional example. It is. 31...Main body, 31a...Large diameter cylinder part, 31b...
... Small diameter cylinder part, 33 ... Adjustment sleeve, 39 ... Perforated plate holder, 45 ... Water storage chamber, 47 ... Water injection plug,
49...screw, 51...brush.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A main body having a large-diameter cylindrical part with an open top and a small-diameter cylindrical part with an open top and bottom coaxially formed integrally with the bottom of the main body, and the large-diameter cylindrical part of this main body. A drainage trap comprising a perforated plate placed thereon via an adjustment sleeve and a perforated plate holder, and a cylindrical cap with an open bottom end attached to the small diameter cylindrical portion of the main body,
A drainage trap characterized in that the cap has a hollow cylindrical portion to form a water storage chamber, and a water injection plug is provided in the upper part of the water storage chamber. (2) The cap has a screw that is inserted into the small diameter cylindrical portion of the main body.
Drainage trap as described in section. (3) The drain trap according to claim 1, wherein the cap has a brush that slides into the small diameter cylindrical portion of the main body.