JPS6138558Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a dry cleaning washing tub in which a solvent stored in a solvent tank is pumped through a filter to the washing tub, and clothes and other items to be washed are washed using the solvent as a medium. This invention relates to a drain valve device with a liquid level adjustment device.

The drain valve device of existing drying machines does not have a device that can automatically control the liquid level of the solvent, and as shown in Fig. 3, an overflow pipe 11 is installed on the side of the washing tub to maintain a constant liquid level. An overflow pipe is installed,
When the liquid level in the washing tub reaches the overflow pipe, clothes are washed while overflowing the solvent from the overflow pipe back into the solvent tank to prevent the liquid level from rising any higher. When washing clothes, the liquid level in the washing tank is high, so the clothes swim in the solvent, and washing (rubbing) the clothes by rubbing against each other has no effect, making it difficult to remove stains from the clothes. There were flaws. In addition, in order to keep the liquid level in the washing tub constant, a device was proposed in which an overflow part was interposed between the outlet of the washing tub and the solvent tank, as described in Japanese Utility Model Application Publication No. 53-576. However, these methods do not have a function to freely adjust the liquid level in the washing tub up and down, and cannot wash clothes according to the material and quantity of the clothes.

This invention was developed in view of the above points, and because it can automatically wash clothes at the appropriate liquid level for the amount of clothes,
The purpose is to provide a drying machine that has a high cleaning effect regardless of the amount of clothes.

The configuration of the present invention will be explained below based on one embodiment. The solvent in the solvent tank 1 is pumped through the filter 3 by the pump 2.
The drying machine cleans by forcing the solvent into the washing tub 4 through the washing tub, passing through the bottom discharge port 5 of the washing tub, passing through the drain valve device 6, and causing the overflowing solvent from the drain valve device to flow back into the solvent tank 1. A space pipe 17 communicating with the bottom discharge port 5 of the washing tub 4 is inserted below the inner cylinder 12a of the drain valve main body 12, and the space pipe is branched and opened in two directions inside. A branch part of the inner cylinder 12a is connected to the geared motor 9.
A slide pipe 10 is connected to the shaft 15 and the pin 14 and can freely slide up and down on the inner peripheral wall of the inner cylinder 12a. The moving part is partitioned by a seal ring 13, and the structure is such that no liquid leaks to the outside from the sliding part, and the liquid that flows into the space pipe 17 accumulates inside the slide pipe 10 and flows to the upper part of the slide pipe. It overflows from the overflow port 21 and falls into the space 18, and the drain valve discharge port 1
9 and then to the solvent tank 1. The other branch is a drain outlet 22, and the opening of the drain outlet is separated by a drain valve 8 connected to a geared motor 7 by a shaft 16, and this drain valve is made of rubber. The drain valve is shaped like a bellows and can be moved from side to side, and when the drain valve is moved to the right (opening the drain valve), the solvent flowing into the space pipe 17 is removed from the drain valve outlet. 19, the slide pipe 10 is structured so as to be able to flow without overflowing. Further, the geared motors 7 and 9 are linked with the control circuit of the drying machine, and are operated according to the washing process.

The liquid drain valve device having the liquid level adjusting device of the present invention has the structure as described above, and its operation and effects will be further explained based on the drawings.

Figure 1 is a system diagram of the entire dry cleaning machine, in which the solvent stored in the solvent tank 1 is flowed into the washing tank 4 via the filter 3 by the pump 2, and the laundry items such as clothes are washed using this solvent as a medium. After that, the process of circulating the drained liquid back to the solvent tank 1 through the drain valve device 6 will be shown.

When washing laundry items in a dryer, the clothes are placed in a freely rotating basket 20 in the washing tub, and the clothes are washed by spinning the clothes around in the solvent accumulated in the washing tub 4. However, in this case, if the liquid level in the washing tub 4 is high relative to the amount of clothes, the clothes will swim in the solvent in the washing tub, and the clothes will be washed by rubbing against each other (rubbing).
There is no washing effect and it is difficult to remove stains from clothes.
On the other hand, if the liquid level in the washing tub is low relative to the amount of clothes (the amount of washing solvent is small), the effect of washing by massaging is great, but since the amount of solvent is small, the dirt from the clothes cannot be sufficiently removed. I can't wash it away,
Dirt from heavily soiled clothing transfers to less soiled clothing (secondary contamination), conversely staining the clothing, so it is necessary to maintain an appropriate level of solvent for the amount of clothing.

Therefore, the bottom discharge port 5 of the washing tub 4 and the space pipe 17 of the drain valve device 6 are connected with a hose as shown in FIG. 1, so that the solvent in the washing tub 4 can be freely guided to the space pipe 17. I can do it. Further, since the drain valve 8 is closed, the solvent flowing into the space pipe 17 rises inside the slide pipe 10 and overflows from the upper part of the slide pipe.
By lowering the slide pipe 10, the solvent will overflow at a lower position, and by raising the slide pipe 10, the solvent will overflow at a higher position. It becomes possible to adjust the liquid level in the washing tub 4.

In addition, the slide pipe 10 that moves up and down and the drain valve 8 that opens and closes the drain outlet 22 are linked with the control circuit of the drying machine, and the space pipe is connected in two directions inside the drain valve body 12. It is possible to branch out and open each branch, each with its own function (liquid level adjustment and drainage outflow), so that complex liquid levels can be created depending on the amount of clothing, material, and washing process. can be adjusted quickly and accurately.

After washing is completed, the supply of liquid to the washing tub 4 is stopped to remove liquid, and the drain valve 8 is closed to the geared motor 7.
The solvent that has flowed into the space pipe 17 is discharged to the drain valve outlet 19 without rising inside the slide pipe 10, so the liquid in the washing tub 4 is completely drained and the basket 20 is completely drained. It rotates at high speed and squeezes out the solvent remaining on the clothes, and the squeezed solvent flows to the bottom outlet 5, passes through the space pipe 17, passes through the drain valve outlet 19, and returns to the solvent tank 1.

As described above, the present invention is a drain valve device having an extremely practical liquid level adjusting device for a drying machine.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention. Figure 1 is an explanatory diagram showing the overall structure of the dry cleaning machine of the present invention, and Figure 2 shows the structure of a drain valve device with a liquid level adjustment device. The enlarged sectional view and FIG. 3 are explanatory diagrams showing a conventional example. 1...Solvent tank, 2...Pump, 3...Filter, 4...Washing tub, 5...Bottom discharge port, 6...Drain valve device, 7, 9...Geared motor, 8...Drainage Valve, 10...Slide pipe, 11...Overflow pipe, 12...Drain valve body, 12a...
...Inner cylinder, 13...Seal ring, 14...Pin,
15, 16...shaft, 17...space tube,
18... Space, 19... Drain valve outlet, 20
... Basket, 21 ... Overflow port, 22 ... Drainage outlet.

Claims (1)

[Scope of utility model registration request] Drain valve main body 1 having a drain valve outlet 19 at the bottom
A space pipe 17 communicating with the bottom discharge port 5 of the washing tub 4 is inserted into the drain valve main body 1 through the space pipe 2.
A slide pipe 1 is branched and opened in two directions inside the pipe 2, and one branch part is an inner pipe 12a, and the inner pipe has an overflow port 21 at the upper part and slides on the peripheral wall of the inner pipe.
0 is provided, and the other branch is used as a drain outlet 22,
The drain valve device is provided with a drain valve 8 that freely opens and closes its opening at the drain outlet.