JP5786438B2 - Cleaning device - Google Patents

Description

  The present invention mainly relates to a cleaning apparatus suitable for cleaning medical instruments, electronic parts and machine parts.

As a cleaning device that cleans electronic parts, machine parts, etc., a cleaning device that immerses an object to be cleaned in a cleaning tank, depressurizes the cleaning tank, and introduces gas into the depressurized cleaning tank to raise and lower the cleaning solution vigorously. Has been proposed (see, for example, Patent Document 1).
According to this cleaning apparatus, a cleaning liquid is stored up to a predetermined level in a cleaning tank composed of a sealed container, and a pipe for introducing air is provided at the lower part of the cleaning tank, and the object to be cleaned is in a state where the pressure in the cleaning tank is reduced during cleaning. By introducing a gas into the cleaning tank from below, the cleaning liquid is raised violently by the expansion of bubbles. The object to be cleaned is effectively cleaned by raising and lowering the liquid by introducing the gas into the cleaning liquid under reduced pressure.

Japanese Patent Laid-Open No. 2-86878

  However, according to the above-described cleaning device, the cleaning liquid raised by the introduction of the gas under reduced pressure comes into contact with the lid body at the top of the cleaning tank and from the state where it stays due to the surface tension to the suction port provided in the lid plate. In some cases, the cleaning liquid that flows or rises due to the introduction of gas under reduced pressure directly enters the suction port, is sucked into the pressure reducing means, and is taken out of the cleaning tank. When the cleaning liquid is taken out from the cleaning tank, the cleaning liquid in the cleaning tank decreases and cleaning becomes impossible. For this reason, a fixed liquid level of the cleaning liquid in the cleaning tank can always be detected statically, and water is supplied as much as the cleaning liquid is taken out of the cleaning tank. As a result, the supply of water causes a decrease in the concentration of the cleaning agent in the cleaning liquid and a decrease in the temperature of the cleaning liquid, and it is necessary to add the cleaning agent and heat the cleaning liquid. .

  In addition, the distance between the liquid level of the cleaning liquid stored in the cleaning tank and the upper lid body is increased so that the cleaning liquid that has risen due to the introduction of gas under reduced pressure is not drawn into the suction port provided in the lid plate. Although the method is technically conceivable, there is a problem that the cleaning tank becomes deep, it becomes difficult to take in and out the object to be cleaned, and the space in the gas phase part becomes large, so that time is required for decompression. .

  The object of the present invention is to eliminate the difficulty of putting in and out the object to be cleaned, and to prevent the cleaning liquid that has risen by introducing the gas into the depressurized cleaning tank from being sucked into the depressurizing means. An object of the present invention is to provide a cleaning apparatus that can prevent loss.

In order to achieve the above object, the invention according to claim 1 is a cleaning tank having a lid on the top, a decompression means for depressurizing the inside of the cleaning tank, and an air supply for introducing gas into the cleaning tank. In a cleaning apparatus comprising a means for introducing a gas into the cleaning liquid in the cleaning tank under reduced pressure and cleaning the object to be cleaned by raising and lowering the cleaning liquid, a pressure reducing opening in the cleaning tank to the lid The baffle plate is provided so as to hang down from the lid so as to face the opening of the exhaust passage in the means , and the lid has one side of the opening of the container body constituting the cleaning tank together with the lid. The lid is attached to one side so as to be rotatable by a hinge, and the lid is attached to the lid in a position near the hinge and within the opening of the container body when closed. Abbreviated as one side of the opening of the container body Characterized in that provided in the line.

According to the first aspect of the present invention, the cleaning liquid that has risen due to the introduction of the gas under reduced pressure is sucked and moved to the opening side of the exhaust passage that opens into the cleaning tank by the suction by the pressure reducing means. In addition, it is transferred to the opening side of the exhaust path that opens in the cleaning tank through the lid body provided on the upper part of the cleaning tank, and the movement of the cleaning liquid is opposed to the opening part of the exhaust path. Since it is hindered by the baffle plate provided so as to hang down from the lid body and falls to the washing liquid side in the washing tank through the baffle plate, the gas under reduced pressure is not increased without increasing the height of the washing tank. It is possible to prevent the cleaning liquid that has been raised by the introduction from being taken out of the cleaning tank through the opening of the exhaust passage.
According to the first aspect of the present invention, when the lid is opened, the liquid adhering to the inner surface of the lid flowing down through the lid is received by the liquid receiving plate and guided. Since the liquid enters the cleaning tank, the liquid can be prevented from falling out of the cleaning tank.

  According to a second aspect of the present invention, the baffle plate according to the first aspect is larger than at least an opening of the exhaust passage, and at least one side end of the baffle plate and an inner wall of the cleaning tank It is characterized in that the air passage is held between the lower end of the baffle plate and the upper surface of the cleaning liquid supplied into the cleaning tank.

  According to the second aspect of the present invention, ventilation is provided between at least one side end of the baffle plate and the inner wall of the cleaning tank and between a lower end of the baffle plate and an upper surface of the cleaning liquid supplied into the cleaning tank. Since the baffle plate has a shape having a passage, the presence of the baffle plate does not interfere with the pressure reduction in the washing tank by the pressure reduction means, and the baffle plate has a shape larger than at least the opening of the exhaust passage. Therefore, even if the air passage is held, the cleaning liquid that rises by introduction of gas and is sucked and moved to the opening side of the exhaust passage is prevented from moving by the baffle plate. Without raising, it can suppress taking out from the opening of the exhaust path out of the washing tub.

According to a third aspect of the invention, according to any one of claims 1 or 2, wherein'm or a plate and / or liquid receiving plate, disposed in said cleaning tank when closing the lid It is characterized in that there is provided a pressing lid holding portion that detachably holds a pressing lid that presses the basket downward .

According to the third aspect of the present invention, when the lid is opened, the basket containing the object to be cleaned is placed in the cleaning tank, and the basket containing the object to be cleaned is taken out from the cleaning tank. The lid can be used as a storage place for the pressing lid by holding the pressing lid placed on the opening of the basket in the cleaning tank during the cleaning operation.

According to the present invention, the rise of the cleaning liquid caused by the gas introduced under reduced pressure without increasing the height of the cleaning tank, the cleaning liquid opens from the opening of the exhaust passage in the decompression means that opens into the cleaning tank. The amount of additional water supplied to the cleaning tank can be reduced, and it is possible to prevent a decrease in the concentration of the cleaning agent in the cleaning liquid and a decrease in the temperature of the cleaning liquid due to excessive additional water supply. Can be prevented.
Furthermore, when the lid is opened, the liquid receiving plate guides the cleaning liquid flowing down through the lid into the cleaning tank, so that the cleaning liquid can be prevented from falling out of the cleaning tank. In addition, the lid can be used as a storage place for the presser lid by holding the presser lid placed in the opening of the basket in the cleaning tank during the cleaning operation by holding the presser lid holding part during non-operation. .

It is a schematic block diagram which shows the reference example of embodiment of the washing | cleaning apparatus which concerns on this invention. It is a partial abbreviated cross-sectional view of the cleaning tank of the cleaning device of the reference example. It is a partially omitted cross-sectional view of a cleaning tank of a cleaning device showing another example of a baffle plate. It is explanatory drawing which shows the state of the cleaning liquid which was blown up and rose in the washing | cleaning apparatus of a reference example. It is a partially-omission perspective view which shows the 1st example of embodiment of the washing | cleaning apparatus which concerns on this invention. It is a partially-omission perspective view which shows the other example of the liquid receiving plate shown in this example. It is a schematic block diagram which shows the state which closed the cover body of the washing | cleaning apparatus of this example. It is a partially-omission perspective view which shows the state which made the cover body hold | maintain the pressing lid at the time of the non-operation | movement of the washing | cleaning apparatus of this example. It is explanatory drawing which shows the flowing-down state of the washing | cleaning liquid adhering to the cover body, when the cover body of the cleaning apparatus of this example was opened.

DESCRIPTION OF EMBODIMENTS Hereinafter, a mode for carrying out a cleaning apparatus according to the present invention will be described in detail with reference to the embodiments shown in the drawings.
1 through FIG. 4 shows a reference example of the embodiment of the cleaning apparatus according to the present invention, FIG. 1 is a schematic structural view showing a cleaning device of the reference example, FIG. 2 washing tank of the cleaning device of the reference example FIG. 3 is a partially omitted transverse sectional view of a cleaning tank of a cleaning apparatus showing another example of a baffle plate, and FIG. 4 shows the state of the cleaning liquid spouted and raised in the cleaning apparatus of the reference example. It is explanatory drawing.

The cleaning apparatus of the reference example includes a cleaning tank 3 in which the cleaning liquid 1 is stored and an object to be cleaned 2 is immersed, and a decompression unit 4 that sucks and discharges the gas in the cleaning tank 3 to the outside and decompresses the cleaning tank 3. , An air supply means 5 for introducing gas into the cleaning liquid 1 in the cleaning tank 3 under reduced pressure, a water supply means 6 for supplying water into the cleaning tank 3, and a cleaning agent supply means 7 for supplying the cleaning agent into the cleaning tank 3. A heating means 8 for heating the cleaning liquid 1 in the cleaning tank 3, a draining means 9 for discharging the cleaning liquid 1 in the cleaning tank 3, a pressure sensor 10 for detecting the pressure of the gas phase portion in the cleaning tank 3, The temperature sensor 11 for detecting the temperature of the liquid phase in the cleaning tank 3, that is, the temperature of the cleaning liquid 1, the liquid level detecting means 12 for always detecting the liquid level of the cleaning liquid 1 in the cleaning tank 3, the pressure sensor 10 and the temperature. Based on the detection signals of the sensor 11 and the liquid level detection means 12, the decompression means 4, the air supply means 5, the water supply means Cleaning agent supply means 7, heating means 8, and a control means for controlling the water discharge means 9 (not shown).

  The cleaning tank 3 described above is a pressure-resistant container, and includes a container body 13 that opens at the top and a lid body 14 that opens and closes the opening of the container body 13, and a packing 15 is provided between the container body 13 and the lid body 14. It comes to be sealed with.

  The decompression means 4 includes an exhaust path 16 connected to the cleaning tank 3 and a vacuum pump 17 that sucks and discharges the gas in the cleaning tank 3 to the outside through the exhaust path 16. An opening 18 of an exhaust passage 16 that opens into the cleaning tank 3 is provided on the upper portion of the container body 13 in the cleaning tank 3. In the exhaust passage 16, a check valve 19 is provided between the cleaning tank 3 and the vacuum pump 17.

  Further, the air supply means 5 includes an air supply path 20 for introducing gas into the cleaning liquid 1 in the cleaning tank 3 under reduced pressure, and an air supply pipe 21 provided at the bottom of the cleaning tank 3. Has been. An air supply valve 22 and a filter 23 are provided in the air supply path 20. When the air supply valve 22 is opened in a state where the inside of the cleaning tank 3 is depressurized, outside air is introduced into the cleaning tank 3 by a differential pressure. Can be done. The above-described air supply pipe 21 is provided with a gas outlet hole 24 for extracting gas.

In addition, the water supply means 6 includes a water supply path 25 connected to the cleaning tank 3 and a water supply source (not shown). A water supply valve 26 is provided in the water supply path 25.
Further, the cleaning agent supply means 7 includes a cleaning agent supply path 27 connected to the cleaning tank 3 and a cleaning agent storage unit 28. A cleaning agent supply valve 29 is provided in the cleaning agent supply path 27.

Further, in the heating means 8, an electric heater is used in the reference example, and the electric heater is provided in the cleaning tank 3 to heat the cleaning liquid 1.
Further, the drainage means 9 has a configuration in which a drainage channel 30 is connected to the bottom of the cleaning tank 3, and a drainage valve 31 is provided in the drainage channel 30.

In the cleaning apparatus configured as described above, the opening of the exhaust passage 16 in the decompression means 4 opening in the cleaning tank 3 is stored in the lid 14 of the cleaning tank 3 in which the cleaning liquid 1 is stored and the object to be cleaned 2 is immersed. A baffle plate 32 is provided so as to hang from the lid 14 so as to face the portion 18.
The baffle plate 32 is formed in a rectangular shape that is larger than the opening 18 of the exhaust passage 16 that opens into the cleaning tank 3, and the side end of the baffle plate 32 and the inner wall of the container body 13 of the cleaning tank 3 are formed. Between the lower end of the baffle plate 32 and the upper surface of the cleaning liquid 1 supplied into the cleaning tank 3, the air passages 33 and 34 are held (see FIGS. 1 and 2).

In the reference example, the length of the baffle plate 32 (L1 in FIG. 2) with respect to the width of the opening 18 of the exhaust passage 16 is 50 mm to 100 mm longer at both ends, and the container serving as the ventilation passage 33 An interval of 30 mm to 100 mm is provided between the inner wall of the main body 13 and the baffle plate 32. The distance L2 between the baffle plate 32 serving as the air passage 34 and the upper surface of the cleaning liquid 1 at a predetermined water level is set to 50 mm to 100 mm, and the opening 18 facing the baffle plate 32 opens at a position where it does not come off the baffle plate 32. The lower end of the baffle plate 32 is set to be lower than the lower edge of the opening 18. A distance L3 between the baffle plate 32 and the opening 18 opened in the cleaning tank 3 is set to 30 mm to 70 mm.

In the reference example, the air passage 33 is formed between both side ends of the baffle plate 32 and the inner wall of the container main body 13 of the cleaning tank 3, but one side of the baffle plate 32 as shown in FIG. It is good also as a shape which holds the ventilation path 33 between an edge and the inner wall of the container main body 13 of the washing tank 3. FIG.

Cleaning by the cleaning device of the reference example configured as described above is performed in the following steps.
<Water supply process>
First, the water supply valve 26 is opened to supply water into the container main body 13 of the cleaning tank 3 into which the article to be cleaned 2 has been introduced. At this time, the inside of the washing tank 3 may be decompressed by operating the decompression means 4 simultaneously with the water supply. When the liquid level detecting means detects that the water has been supplied to the set liquid level, the water supply valve 26 is closed and the water supply is stopped. At this time, if the decompression means 4 is operated, the operation is stopped and air is supplied.

<Cleaning agent input process>
Next, after the pressure reducing means 4 is operated to reduce the pressure in the cleaning tank 3 to a predetermined pressure, the pressure reducing means 4 is stopped, the cleaning agent supply valve 29 is opened, and the cleaning liquid is drawn into the cleaning tank 3 for a set time and supplied to the water supply. The cleaning liquid 1 is obtained. When the set time has elapsed, the cleaning agent supply valve 29 is closed.

<Heating process>
When a predetermined amount of the cleaning agent is added, the cleaning liquid 1 is heated to a predetermined temperature by the heating means 8. When heated to a predetermined temperature, the cleaning tank 3 is depressurized to a predetermined pressure, and supplied to the cleaning liquid 1 side in the cleaning tank 3 by the air supply means 5 to stir the cleaning liquid 1. This operation is repeated at regular intervals until the temperature of the cleaning liquid 1 reaches a target temperature (for example, 50 ° C.). When the temperature of the cleaning liquid 1 reaches the target temperature, the target temperature is maintained by ON-OFF control of the heating means 8.

<Washing process>
With the temperature of the cleaning liquid 1 maintained at the target temperature, the gas in the cleaning tank 3 is sucked and discharged to the outside by the pressure reducing means 4 to reduce the pressure in the gas phase in the cleaning tank 3, so that the cleaning liquid 1 is saturated. The temperature is lowered to the vapor pressure or lower or just before that (for example, lowered to a temperature lower by 0.5 ° C. from the target temperature), and the cleaning liquid 1 in the cleaning tank 3 is brought into a boiling state. In this state, normally, boiling occurs in at least a part of the cleaning liquid 1 in the cleaning tank 3.

  In this state, gas is introduced from below the object to be cleaned 2 into the cleaning liquid 1 in the cleaning tank 3 under reduced pressure by the air supply means 5. This introduced gas becomes the nucleus of the boiling of the cleaning liquid 1, and intense boiling occurs in the boundary layer between the introduced gas and the cleaning liquid 1, particularly in the lower layer, thereby forming large bubbles, and the large formed bubbles rise. The cleaning liquid is greatly spouted and rises and falls. Due to the violent rise and fall of the cleaning liquid 1, the cleaning liquid 1 in the cleaning tank 3 is greatly swung, and the object to be cleaned 2 is cleaned. The object 2 to be cleaned is repeatedly subjected to such depressurization up to a predetermined pressure and the rising and lowering of the cleaning liquid by introduction of gas into the cleaning liquid 1 in a boilable state by the pressure reduction (for example, around 10 times). Wash.

  During the cleaning performed in this way, the decompression means 4 is in a continuously operating state, and the opening of the exhaust passage 16 is opened by the suction of the decompression means 4 with the rising cleaning liquid 1 decompressing the inside of the cleaning tank 3. The movement of the cleaning liquid 1 is hindered by a baffle plate 32 provided so as to hang down from the lid body 14 so as to face the opening 18 of the exhaust passage 16, and the baffle plate 32. And then drops to the cleaning liquid 1 in the cleaning tank 3.

  In particular, a certain amount of the cleaning liquid 1 that has moved up and contacted the lid body 14 at the top of the cleaning tank 3 has stopped on the back surface of the lid body 14 due to its surface tension. Although it flows along the body 14 and is drawn toward the opening 18 side of the exhaust passage 16, the flow of the cleaning liquid 1 to the opening 18 side of the exhaust passage 16 is blocked by the baffle plate 32, and this cleaning liquid 1 is blocked by the baffle plate. 32 can be dropped into the cleaning liquid 1 in the cleaning tank 3. As a result, the lifted cleaning liquid 1 is suppressed from being taken out of the cleaning tank 3 through the opening 18 of the exhaust passage 16 (see FIG. 4).

In the reference example, the baffle plate 32 is formed in a rectangular shape larger than the opening 18 of the exhaust passage 16 that opens into the cleaning tank 3, and the side end of the baffle plate 32 and the container body 13 of the cleaning tank 3. Since the air passages 33 and 34 that do not impede the airflow are provided between the inner wall of the baffle plate and between the lower end of the baffle plate 32 and the upper surface of the cleaning liquid 1 supplied into the washing tank 3, the baffle plate 32 is provided. The presence of this does not hinder the decompression of the cleaning tank 3 by the decompression means 4.

  Further, since the baffle plate 32 is provided on the lid body 14 provided on the upper part of the cleaning tank 3, it becomes a hindrance when the basket 35 containing the object to be cleaned 2 is put in and out of the container main body 13 of the cleaning tank 3. There is no.

<Drainage process>
When the cleaning of the object to be cleaned 2 is completed, the drain valve 31 is opened, the cleaning liquid 1 in the cleaning tank 3 is discharged, and when the liquid level detecting means 12 confirms that the cleaning liquid 1 has been completely discharged, the drain valve 31 is closed, End the drainage process.

<Rinsing process>
The above-described steps are the same as the water supply step, the heating step, and the cleaning step. In the rinsing process, before the cleaning process, the rinsing agent is charged under the same control as the above-described cleaning agent charging.

<Drainage process>
When rinsing of the object to be cleaned 2 is finished, the drain valve 31 is opened to discharge the liquid in the cleaning tank 3, and when the liquid level detecting means 12 confirms that the liquid has been completely discharged, the drain valve 31 is closed.
By repeating the rinsing step and the draining step a plurality of times, all the steps of cleaning by the cleaning device of the reference example are completed.

5 to 9 show a first example of the embodiment of the cleaning apparatus according to the present invention, and FIG. 5 is a partially omitted perspective view showing the first example of the embodiment of the cleaning apparatus according to the present invention. 6 is a partially omitted perspective view showing another example of the liquid receiving plate shown in this example, FIG. 7 is a schematic configuration diagram showing a state in which the lid of the cleaning device of this example is closed, and FIG. 8 is a cleaning of this example FIG. 9 is a partially omitted perspective view showing a state where the lid is held by the lid when the apparatus is not in operation, and FIG. 9 shows the flow of the cleaning liquid attached to the lid when the lid of the cleaning device of this example is opened. It is explanatory drawing shown.

In the cleaning apparatus of this example, the same components as those of the reference example are denoted by the same reference numerals, and the description thereof is omitted. Only the components different from the reference example will be described.
In the cleaning apparatus of this example, a lid body 14 that opens and closes an opening of a container body 13 constituting the cleaning tank 3 is attached to one side of the opening of the container body 13 by a hinge 36 so as to be rotatable. The lid 14 has a liquid receiving plate 37 in the vicinity of the hinge 36 and at a position where the liquid receiving plate 37 is accommodated in the opening of the container body 13 when closed, substantially parallel to one side of the opening of the container body 13 to which the lid 14 is attached. Is provided.

Similar to the baffle plate 32 provided on the lid body 14, the liquid receiving plate 37 is provided so as to hang from the lid body 14, and the hanging length is not particularly limited, but at least the lid body 14. When the is opened, the length is set such that the liquid 39 adhering to the inner surface of the lid body 14 flowing down through the lid body 14 is guided and dropped into the cleaning tank 3. Further, the horizontal length of the liquid receiving plate 37 should be as close as possible to the inner walls of both sides of one side of the opening of the container body 13 as long as it does not hinder the opening and closing of the lid body 14. preferable.
In this example, the liquid receiving plate 37 has an end portion in the width direction connected to and integrated with the end portion of the baffle plate 32, and the liquid receiving plate 37 and the baffle plate 32 form a substantially L shape. However, as shown in FIG. 6, the liquid receiving plate 37 and the baffle plate 32 may be separated.

In this example, the baffle plate 32 and the liquid receiving plate 37 are provided with holding lid holding portions 40 and 41 for holding the holding lid 38 in a detachable manner. The presser lid 38 is placed at the opening of the basket 35 that accommodates the uppermost article 2 to be cleaned disposed in the cleaning tank 3, and is to be cleaned that rises with the cleaning liquid 1 that is blown up during the cleaning operation. Used to prevent damage or scattering of the object 2.
The holding lid 38 used in this example is formed in a mesh plate shape having a size corresponding to the opening of the basket 35, and a handle 42 is provided on one surface so as to protrude to a predetermined height. It has been. As shown in FIG. 7, the height of the handle 42 is such that when the presser lid 38 is placed in the opening of the uppermost basket 35 disposed in the cleaning tank 3 and the lid 14 is closed, the tip 42 a The height is set so as to be in contact with the inner surface of the lid body 14 (the surface on the cleaning tank 3 side) and pressed downward.
The lid holding portions 40 and 41 for detachably holding the pressing lid 38 used in this way are formed in a hook shape, and the edge of the pressing lid 38 is engaged with the lid holding portions 40 and 41 as shown in FIG. It can be held by stopping.

In the baffle plate 32 and the holding plate receiving portions 40 and 41 provided on the liquid receiving plate 37 for holding the holding lid 38, in this example, the holding lid receiving portion 40 provided on the baffle plate 32 includes: A plate-like material is provided on the inner side surface of the baffle plate 32 so as to protrude like a hook, and the holding lid receiving portion 41 provided on the liquid receiving plate 37 has the end of the liquid receiving plate 37 inward. The presser cover 38 is formed by a hook-like bent piece. One end of the presser cover 38 is held by being detachably locked to a presser cover receiving part 40 provided on the baffle plate 32. The edge portion is held by being detachably locked to a pressing lid receiving portion 41 provided on the liquid receiving plate 37.
The shape of the pressing lid receiving portions 40 and 41 is not particularly limited as long as the pressing lid 38 can be detachably received and supported. In this example, the baffle plate 32 and the liquid receiving plate 37 are respectively provided with holding lid receiving portions 40 and 41. However, if the holding lid 38 can be held by being detachably locked, the baffle plate 32 or A pressing lid receiving portion 40 or a pressing lid receiving portion 41 may be provided on either one of the liquid receiving plates 37.
Other features are the same as the reference example, the aid of the description of the reference example, the description thereof is omitted.

The cleaning by the cleaning device of this example configured in this way is performed in the order of the water supply process, the cleaning agent charging process, the heating process, the cleaning process, the draining process, the rinsing process, and the draining process, as in the above reference example. The same effect is produced. Further, in the cleaning device of this example, the lid 14 is provided with the liquid receiving plate 37 and the pressing lid receiving portions 40 and 41 which are not present in the configuration of the reference example, and the liquid receiving plate 37 and the pressing lid receiving portion 40 are provided. , 41 produces an effect not found in the reference example. Therefore, the washing and the action similar to the Reference Example explanation thereof is omitted with the aid of the description of reference examples, will be described only the unique effect of the cleaning apparatus of the present embodiment.

In this example, since the baffle plate 32 and the liquid receiving plate 37 are provided with holding lid receiving portions 40 and 41 for holding the holding lid 38, the lid 14 is opened and the object to be cleaned 2 is placed in the cleaning tank 3. The baffle plate 32 and the liquid receiving plate 37 that hold the presser lid 38 are disposed during the operation of arranging the basket 35 in which the cleaning object 3 is stored, or in the operation of taking out the basket 35 in which the object 2 is to be cleaned from the cleaning tank 3. The lid 14 can be used as a storage place for the pressing lid 38 by engaging and holding the edge of the pressing lid 38 on the provided pressing lid receiving portions 40 and 41 (see FIG. 8).
During the cleaning operation, the presser lid 38 is placed in the opening of the uppermost basket 35 disposed in the cleaning tank 3, and when the lid body 14 is closed, the tip end portion 42 a is the inner surface (cleaning tank) of the lid body 14. (See FIG. 7), the opening of the basket 35 is reliably pressed by the pressing lid 38, and the object to be cleaned that rises with the cleaning liquid 1 that is blown up and rises. 2 damage and scattering can be prevented.

  Further, in this example, the lid body 14 that opens and closes the opening of the container main body 13 constituting the cleaning tank 3 is rotatably attached to one side of the opening of the container main body 13 by a hinge 36. The liquid receiving plate 37 is provided in the vicinity of the hinge 36 and at a position that fits within the opening of the container body 13 when closed, substantially parallel to one side of the opening of the container body 13 to which the lid 14 is attached. Therefore, by repeating the rinsing process and the draining process a plurality of times, the lid body 14 is opened as shown in FIG. When the liquid 39 adhering to the liquid 14 flows down through the lid body 14, the liquid 39 that has flowed down is received by the liquid receiving plate 37, guided, and dropped into the cleaning tank 3. Is prevented from falling out of 3. .

DESCRIPTION OF SYMBOLS 1 Washing liquid 2 To-be-washed object 3 Washing tank 4 Depressurization means 5 Air supply means 6 Water supply means 13 Container main body 14 Lid body 16 Exhaust path 18 Opening part 32 Baffle plate 33, 34 Ventilation path 36 Hinge 37 Liquid receiving plate 38 Holding lid 39 Liquid 40, 41 Pressing lid receiving part

Claims (3)

A cleaning tank having a lid on the top, a decompression means for depressurizing the inside of the cleaning tank, and an air supply means for introducing gas into the cleaning tank, and introducing gas into the cleaning liquid in the cleaning tank under reduced pressure In a cleaning device that cleans the object to be cleaned by raising and lowering the cleaning liquid,
In the lid body, a baffle plate is provided so as to hang from the lid body so as to face the opening of the exhaust passage in the decompression means that opens in the cleaning tank ,
The lid body is configured such that one side of the lid body and the lid body are pivotally attached to one side of the opening of the container main body constituting the cleaning tank, and a liquid receiving plate is attached to the lid body. A cleaning apparatus, wherein the cleaning apparatus is provided in a vicinity and in a position that fits within the opening of the container body when closed, substantially parallel to one side of the opening of the container body to which the lid is attached .   The baffle plate is at least larger than the opening of the exhaust passage, and the cleaning liquid supplied between at least one side end of the baffle plate and the inner wall of the cleaning tank and the lower end of the baffle plate and the cleaning tank. The cleaning device according to claim 1, wherein the cleaning device has a shape having an air passage between the upper surface of the cleaning device and the upper surface of the cleaning device. The 's or plate and / or the liquid receiving plate, said that the placed basket into the cleaning tank provided with a pressing cover holding section for detachably holding the holding lid for pressing downward when closed said lid The cleaning apparatus according to claim 1, wherein the cleaning apparatus is characterized in that:

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