KR890008810Y1 - Drain valve - Google Patents

Abstract

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Description

Drain valve for dry cleaner and laundry dehydrator

1 is an exploded perspective view of the present invention.

Figure 2 is a longitudinal cross-sectional view of the assembled state of the present invention, Figure 2 (a) is a valve open state, Figure 2 (b) is a valve closed state.

3 is a circulation diagram of the solvent washing liquid.

The present invention relates to a drain valve such as a dry cleaning machine or a laundry dehydrator, and is installed in an outer cylinder drain hole of a dry cleaner and a laundry dehydrator, so that the pump pressure for supplying solvent to the cleaning outer cylinder as shown in FIG. By connecting the suction pipe to the branch pipe, the hydraulic cylinder is operated by the suction pressure of the washing liquid circulation pump to open and close the valve.

Conventionally, the drain valve of a dry cleaner or laundry dehydrator is connected to a valve butterfly opening / closing speed reduction motor, rotated by an operation signal, and controlled by a limit switch.The limit switch sparks during operation to generate a highly flammable solvent such as solvent. There is a risk of fire due to the use of a fire engine, a part of the laundry flows into the butterfly open / close valve, and the drainage is clogged. Also, a separate driving device is required to operate the drain valve and the structure is complicated. There is a problem such as difficult.

The present invention was created in view of the problems of the drain valve of the conventional dry cleaner or laundry dehydrator as described in detail by the accompanying drawings as follows.

In the dry cleaner and the dehydrator valve, one side end 1 'of the generally tubular body 1 is bent downward to form a flange 2 at the end, and the valve seat 4 at the inner bent part 3. ) Is formed to communicate with the upper drain 13, the support ring 10 is interpolated inside the other end (1 ") of the fuselage 1, and the cylinder (5) is screwed to the outside, in the cylinder (5) The rear end of the shaft 7 is inserted into the piston 6 is tightly interpolated and fixed to the transverse hole (6 ') of the piston 6 is inserted into the front end of the piston (10). The nut (8) is fitted, and the spring (11) is inserted between the support ring (10) and the piston (6) to bias the piston (6).

Reference numeral 5a denotes an air exhaust coke, 12 cylinder caps, 14 hydraulic supply pipes, 14a back pressure pipes, 13 'and 14' are solenoid controlled hydraulic control valves, 15 dry cleaner external cylinders, 16 solvents (Washing liquid) Circulation tank, 17 is activated carbon filter, 18 is pump. 18 'is the suction line.

The effect of the present invention thus achieved will be described below.

The present invention connects the flange (2) to the drain port of the bottom of the outer cylinder (15) of the dry cleaner or general laundry dehydrator, and the hydraulic supply pipe 14 and the hydraulic back pressure pipe (14a) to the suction pipe side 18 'of the pump 18 By connecting the valve to the opening and closing by the solenoid controlled valve (13 ', 14') bar to supply the washing liquid of the tank (16) to the outer cylinder (15) for washing through the pump (18) and the solenoid valve ( 13 'opens and the valve 14' closes.

Therefore, the hydraulic supply pipe 14 communicates with the pump suction pipe 18 'so that the suction pressure of the pump 18 flows into the cylinder 5 through the hydraulic supply pipe 14 to push out the piston 6 and the inner spring 11 ), The piston 6 moves forward while the deformed shaft 7 fixed to the piston 6 moves forward, so that the deformed body 9 fixed to the front end blocks the front valve seat 4 so that the second ( b) closes as shown.

When the washing is done to remove the washing liquid in the outer cylinder 15, the solenoid valve 14 'is opened and 13' is closed, as opposed to the first.

Accordingly, the fluid pressure applied to the cylinder 5 is reduced and discharged through the back pressure pipe 14a, and the piston 6 is retracted by the spring force of the spring 11, and as a result, the deformed body 9 which is blocking the valve seat 4 Is opened so that the washing liquid of the outer cylinder 15 is drained to drain to the washing liquid circulation tank (16).

As such, the drain valve of the present invention is opened and closed by the fluid pressure sucked by the pump 18 for supplying the cleaning liquid, and thus, there is no need for a separate drain valve driving device as in the prior art, and there is no limit switch for controlling the opening and closing of the conventional buffered valve. There is no risk of fire caused by electric sparks, and part of the laundry is inserted into the valve of the butterfly valve so that the drain hole is not blocked.

In addition, the structure is simple, easy to manufacture, and the piston (6), the support ring (10), etc. are packed in several stages, there is no leakage of cleaning liquid and air cock that can exhaust the accumulated air in the cylinder (5) There is no (5a) there is no accident, such as explosion, smooth operation, there is an advantage that can be used semi-permanently by replacing only the spring (11).

Claims (1)

In the dry cleaner and the laundry dehydrator valve, one side of the horizontal portion 1 'of the body 1, which is generally T-shaped, is bent downward to form a flange 2 connected to the outer cylinder drain 13 at the end thereof, and an inner curved portion. The valve seat 4 is formed in (3) and communicates with the upper drain port 13, and the support ring 10 is fitted inside the other end 1 "of the fuselage 1, and the cylinder 5 is screwed outside. The piston 6 is inserted into the cylinder 5 tightly, and the center 9 of the piston 6 is fitted with a deformed body 9 at the distal end thereof, and the middle of which is inserted into the electric support ring 10. A drain valve of the dry cleaner and the laundry dehydrator, which is fixed by interposing the rear part of the shaft 7 and a spring 11 is inserted between the support ring 10 and the piston 6 to urge the piston 6.