JPS5925983Y2 - drainage trap - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drainage trap that has a simple shape and structure, is free from failure, and is extremely easy to construct.

Various types of drainage traps are used to allow wastewater to pass freely, while at the same time preventing exhaust gases and odors from entering the building from drainage pipe systems, sewage pipes, various sanitary equipment, air conditioner drain pipes, etc. However, the structure is generally complex and often causes trouble.

For example, various types of traps are known, such as water-sealed traps with a U-shaped structure, chatter traps with a catch plate placed over the inclined end surface of a horizontal drainage pipe, and floating traps that use floats. If you try to improve the sealing function and improve the accuracy, the structure will become complicated and expensive, and those that form a water seal are difficult to construct, and if there is no drainage, the water seal will break and gas flow will be interrupted. There is the issue of freedom.

The present invention eliminates waste to the extent that it would be difficult to imagine that it would be easier to construct and have a simpler shape and structure. Moreover, whether the system is under positive pressure or negative pressure, the present invention substantially prevents gas conduction while only draining water. devised a free-flowing drainage trap.As shown in the embodiment of the drawings, this drainage trap consists of a cylindrical bag body 2 attached to the end of a drainage pipe 1. The bag body 2 is made of an elastic material such as silicone rubber, and a cut 3 is formed in the bag body 2 so that it opens against the elasticity of the bag body 2 when more than a certain amount of water stays inside the bag body 2. It is characterized by being provided at the bottom of the.

FIG. 1 shows the drain trap of the present invention attached to the lower end of a drain pipe 1.

That is, the rubber bag 2 having an inner diameter slightly shorter than the outer diameter of the drain pipe 1 is shown with its upper opening widened and attached to the lower end of the drain pipe 1.

In other words, the installation is completed with the same operation as attaching a rubber hose to a faucet.

FIG. 2 is a view taken along arrows II-II' in FIG. 1, and shows the state of the cut 3 provided at the bottom of the bag body 2.

In this embodiment, the bottom of the bag 2 is tapered, and a cut 3 of a predetermined length is provided along the longitudinal direction (axial direction) at the tip.

That is, the cut 3 is made by cutting the same length into both sides of the bag 2 from the bottom tip of the bag 2 along a plane passing through the central axis of the bag 2.

The size of this cut and the length of the grip are related to the elasticity of the material constituting the bag 2 and the thickness of the bag 2.

When there is no water in the bag 2, the cut 3 is closed due to the elasticity of the bag material, but since the structure requires a certain amount of force to open the cut 3, the bag If water stays inside the chamber 2 and a gravitational force exceeding this certain level is applied, it will open and the water will fall.

Figures 3 and 4 illustrate this relationship; as shown in Figure 3, when this amount of water 4 is applied, the cut 3 remains closed, but when the amount of water 4 as shown in Figure 4 is The size of the slit 3 is selected depending on the elasticity of the material of the bag body 2 and its thickness so that the slit 3 opens when water accumulates.

In particular, if the shape of the lower part of the bag body 2 is made to taper with a certain curve change (or radius change) like a spherical or conical surface, the cut 3 cut in the axial direction will be Since a considerable amount of resistance is required to push and expand the slit 3 as an effect peculiar to its shape, it is possible to prevent the slit 3 from opening easily even if the internal pressure increases a little.

Therefore, the shape of the lower part of the bag body 2 also plays a role in the opening and closing function of the cut 3.

FIG. 5 shows the drain trap of the present invention attached to the tip of the horizontal drain pipe 1.

In the case of this example, the upper part of the rubber bag 2 has a bend 5 at an angle of about 90 degrees, so that even if the drain pipe is a horizontal pipe, it can be directly attached.

The relationship between the cut 3 and the bag body 2, as well as the structure and function of this example are the same as those described for the previous example.

Figures 6 and 7 show bottom views of the bag body 2. In the case of Figure 6, one cut 3 is provided along a line passing through the center of the bottom of the bag body 2; The figure shows an example in which two cuts 3 and 3' are provided along lines passing through the center of the bottom of the bag body 2 and perpendicular to each other.

Figures 8 and 9 show an example of the use of the drain trap of the present invention for draining an air conditioner, where 7 is the air conditioner body, 8 is a drain pan inside the air conditioner, and 1 is a drain pipe.

In the case of Fig. 8, the drainage trap of the present invention shown in Fig. 5 is installed in the pit 9.
In the case of FIG. 9, an example is shown in which the drainage trap of the present invention shown in FIG. 1 is directed above the drain pipe 10.

In either case, the drain water in the drain pan 8 does not stay in the drain pan but flows out into the trap one by one, and when the amount of water in the trap reaches a predetermined amount, it falls from the cut 3 into the pit or drain pipe, and usually the cut 3 is closed. Since the air conditioner is closed, air will not flow into the air conditioner.

Table 1 below shows a comparison between the conventional (a) P trap, (b) drum trap, (C) Chatsuki trap shown in Figure 10, and (d) the trap of the present invention. .

Further, FIG. 11 shows an example of the dimensions of the trap of the present invention made of silicone rubber, and FIG. 12 shows a capacity curve when the example of the dimensions shown in FIG. 11 is used for drain discharge from an air conditioner.

In Fig. 12, △P is the static pressure inside the air conditioner (suction side duct pressure loss mmAq), and I) is 120 mm for 32 L.
Ag, 170 mmAq for 32S, 20 mmAq for 25S
0 mmAq, and the equivalent amount of outside air is outside air with a dry bulb temperature of 32°C, a wet bulb temperature of 27°C, and a relative humidity of 68%, at a dry bulb temperature of 15°C.
．． It was determined by cooling to 5°C, wet bulb temperature of 15°C, and relative humidity of 95%.

As described above, the present invention provides a mechanism that resists the elasticity of the bag body 2 when a certain amount or more of water stays at the bottom of the bag body 2 made of an elastic material (such as various natural or synthetic rubbers). The trap function is achieved through an extremely simple shape and structure, with only a cut 3 large enough to open the trap.
There is something special about the low price.

Furthermore, there is no risk of failure, and gas tightness is maintained even if there is no water in the system.

In addition, the trap can be configured to have sufficient trapping function not only when the system is under negative pressure, but also when there is a slight positive pressure (
(Use a material with strong elasticity, but keep the cuts small)
It also performs functions that conventional products could not, and is particularly suitable as a drain trap for air conditioners.

[Brief explanation of the drawing]

Figure 1 is an overall view of the drainage trap of the present invention, and Figure 2 is the
3 is a cross-sectional view of the drainage trap of the present invention showing the state in which the cut 3 is closed;
The figure is a cross-sectional view of the drain trap of the present invention showing the state where the cut 3 is open, Figure 5 is a cross-sectional view of another example of the drain trap of the present invention, Figure 6 is a bottom view of the drain trap of the present invention, and Figure 7 Figure 8 is a bottom view showing another example, Figure 8 is a diagram showing how the drainage trap of the present invention is used, Figure 9 is a diagram showing another usage status, and Figure 10 is a comparison with a conventional trap. A comparative diagram for explanation, FIG. 11 is a diagram showing an example of the dimensions of the drainage trap of the present invention, and FIG. 12 is a performance curve diagram of the example of the dimensions in FIG. 11. 1...Drain pipe, 2...Bag body, 3, 3'
...cut, 4...water, 7...
・Air conditioner, 8... Drain pan.

Claims (1)

[Scope of utility model registration request] A drainage trap consisting of a cylindrical bag that is attached to the end of a drain pipe.The bag is made of an elastic material, and when more than a certain amount of water stays inside the bag, the elasticity of the bag increases. A drainage trap characterized in that a cut sized to open against the water is provided at the bottom of the bag body.