JP3457929B2 - Cleaning equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device of a type in which dust is sucked into a closed container together with the gas by exhausting the gas and the dust is collected in the container.

[0002]

2. Description of the Related Art The above-mentioned cleaning device creates a negative pressure in the closed container by exhausting air from a gas outlet provided in the closed container, and sucks dust together with gas from a gas inlet provided in the closed container by the negative pressure. The inhaled gas is exhausted from the gas outlet through a filter provided in the closed container, and the dust is captured by the filter and is dropped and collected in a dust collection bag provided at the bottom of the container. .

[0003]

However, the above-mentioned filter has a problem that dust adheres to it due to aging and causes clogging, which deteriorates cleaning performance. Conventionally, high-pressure air is regularly discharged by a compressor. The filter is blown to clean the filter, and it is necessary to install a compressor for cleaning. In addition, there is a problem that it is difficult to expect a stable cleaning operation due to factors such as the work cycle of the worker.

[0004]

SUMMARY OF THE INVENTION The present invention provides a cleaning device for solving the above-mentioned problems, and an outside air suction pipe having an outside air suction port at one end and an outside air discharge port at the other end of the closed container. An electromagnetic valve is provided in the outside air intake pipe, and the negative pressure generated in the closed container by opening the electromagnetic valve and the pressure difference between the outside air pressure of the closed container and the outside air intake port to the closed container. The outside air is naturally sucked into the inside, and the air is blown from the outside air outlet toward the filter to remove dust adhering to the filter. Concrete example
As the outside air sucked into the upper chamber in the above-mentioned closed container
Pipe the pipe and place the filter on the end of the outside air suction pipe.
An outside air discharge port is provided toward the inside of the end opening, and the outside air suction pipe
Open the other end protruding through the outer wall of the closed container to the outside.
The protrusion that forms the outside air intake port and forms the outside air intake port.
An electromagnetic valve is installed in the pipe section, and by opening the electromagnetic valve,
Generated in the closed container due to exhaust from the gas outlet
Depending on the differential pressure between the negative pressure and the outside air pressure of the closed container, is it the outside air intake port?
From the above into the airtight container, and naturally inhaled the outside air.
Direct air from the air outlet to the filter
Rolled to remove dust adhering to the filter
It is a thing.

According to the above cleaning device, the electromagnetic valve is automatically opened and closed during the operation or the stop of the operation to perform the intake of the outside air and the air blow utilizing the above-mentioned differential pressure, and therefore the filter can be automatically cleaned. Function can be maintained soundly. It is rational because it does not require special equipment for cleaning the filter and does not require cleaning work by workers.

[0006]

1 to 3 show an embodiment of a cleaning device according to the present invention, in which 1 is a dust collecting container which constitutes the cleaning device, 2 is the same dust collecting container 2, both containers 1, 2 forms a closed container.

Both the containers 1 and 2 have a cylindrical shape,
As shown in FIG. 1, the dust collection container 1 is open at the lower end, the dust collection container 2 is likewise opened at the top end, and the bottom end opening 3 of the dust collection container 1 and the top opening part 4 of the dust collection container 2 are connected together. The dust collecting container 2 is removably attached to the lower end of the dust collecting container 1 in conformity with each other. That is, the dust container 1 and the dust collection container 2 are assembled so as to be openable and closeable to form the closed container.

As means for removably assembling the dust collecting container 2 to the dust collecting container 1, there is provided a locking device as illustrated in FIG. The locking tool has an operation lever 13 rotatably attached to the outer wall of the lower end of the dust collection container 1, and the operation lever 13 is pulled up by the upward rotation and lowered by the downward rotation of the lever 13. Link the slings 14 that are moved.

On the other hand, a hanging stopper 15 is attached to the outer wall of the upper end of the dust collecting container 2, and the operating lever 13 is rotated downward to release the lock, and the hanging stopper 15 is hooked on the hanging hand 14. By stopping and further rotating the operation lever 13 upward, the hanging hand 14 pulls up the hook 15 and at the same time, while raising the dust collection container 2 slightly from the floor surface 17, the upper end opening part of the dust collection container 2 The end face of 4 is strongly abutted against the end face of the lower end open portion 3 of the dust container 1 and assembled integrally. On the contrary, when the operation lever 13 is rotated downward, the hanger 14 moves downward to release the connection state with the hook 15 and land the dust collection container 2 on the floor surface 17.

The dust container 1, that is, the closed container has a gas outlet 6 and a gas inlet 7, and the air in the dust container 1 is exhausted by a suction source connected to the gas outlet 6, for example, an air exhauster,
Air is sucked into the dust container 1 from the gas inlet 7 by the negative pressure generated by the exhaust, and a suction force is generated in the suction pipe connected to the gas inlet 7 and laid in each room, and the suction pipe is cleaned. Perform suction cleaning in the room by connecting. Thus, the dust is sucked into the dust container 1 from the gas inlet 7 together with the air.

A filter 8 for separating the gas inlet 7 and the gas outlet 6 is built in the dust container 1 , and the dust sucked together with the air is captured by the filter 8 and dropped into the dust collecting container 2 . At the same time, only the air that has passed through the filter 8 is exhausted through the gas outlet 6.

On the other hand, in the dust collecting container 2, a plastic dust collecting bag 5 having flexibility is placed. The upper end bag opening 5'of the dust collecting bag 5 is held between the abutting portions of the dust collecting container 2 and the dust collecting container 1 to keep the dust collecting bag 5 open.

The dust that has been sucked into the dust container 1 from the gas inlet 7 into the closed container, that is, the closed container is captured by the filter 8 and dropped into the dust collecting bag 5 to be collected.

The dust collecting container 2 is periodically removed from the dust collecting container 1 by moving the locking device and moved to the side by the caster 9 to replace the dust collecting bag 5.

Therefore, the filter 8 has a problem that dust adheres to the filter 8 with the passage of time and causes clogging, which deteriorates the cleaning performance. As means for solving this, an outside air suction pipe 10 having an outside air suction port 11 at one end and an outside air discharge port 12 at the other end is provided in the closed container, and an electromagnetic valve 16 is provided in the outside air suction pipe 10. When the valve 16 is opened, the ambient air naturally sucked into the airtight container from the air inlet 11 by the pressure difference between the air pressure inside the airtight container and the air pressure outside the airtight container is blown to the filter 8 through the air outlet 12 and adheres to the filter 8. Remove the dust.

More specifically, an upper chamber 19 separated by a partition plate 18 is formed immediately below the canopy 20 at the upper end of the closed container, that is, the upper end of the dust container 1, and the plurality of partition plates 18 are used as hanging plates. The cylindrical filters 8 are suspended and the upper end openings 21 of the respective filters 8 are opened in the upper chamber 19. On the other hand, the gas inlet 7 is opened in the lower chamber 22 below the partition plate 18 supporting the filter 8.

Therefore, the upper chamber 19 and the lower chamber 22 are partitioned by the partition plate 18 through the filter 8, and the gas in the lower chamber 22 is exhausted through the filter 8 as the gas in the upper chamber 19 is exhausted. , The gas inlet 7 due to the negative pressure accompanying this exhaust
The gas is inhaled together with the dust. This inhaled gas is exhausted from the gas outlet 6 through the filter 8, and only dust is captured by the filter 8 and collected.

On the other hand, the outside air suction pipe 10 is piped into the upper chamber 19 through the outer wall of the dust container 1, and one end thereof has a discharge port (discharge pipe) 12 directed into the opening of the filter 8.
And the air blow is performed.

The outside air suction pipe 10 has an upper chamber 19
One or two or more discharge ports 12 are provided in the inner pipe portion, and each one discharge port 12 is directed toward the opening of each one filter 8.
For example, when the number of filters 8 is four, it is possible to adopt a structure in which one outside air suction pipe 10 blows air through one to four filters 8.

In the embodiment, a plurality of outside air suction pipes 1
0 are provided in parallel, one outside air suction pipe 10 is in charge of air blow of a part of the filter 8 group, and the other outside air suction pipe 10 is provided.
Is in charge of air blow for some other parts of the filter group 8.

By selectively (alternately) performing an air blowing operation on the outside air suction pipe 10, the other filters can function and the operation of the cleaning device can be continued. That is, the filter can be cleaned by air blow during operation.

Further, the other end of the outside air suction pipe 10 is projected through the outer wall of the dust container 1 to the outside to be opened, and the outside air suction port 1
1 is formed, and the electromagnetic valve 16 is provided in the protruding pipe portion forming the outside air suction port 11. The electromagnetic valve 16 is driven by a motor or an electromagnet 16a and can be opened / closed by an electric signal.

Therefore, by periodically opening the electromagnetic valve 16, the outside air is naturally sucked from the outside air suction port 11 by the differential pressure, and air is blown from the outside air discharge port 12 toward the filter 8.

[0024]

According to the present invention, by opening and closing the electromagnetic valve during operation or during operation stop, the outside air suction and the air blow utilizing the differential pressure between the internal pressure and the external pressure of the airtight container forming the cleaning device body. Therefore, the filter can be automatically cleaned and the filter function can be maintained soundly. It is extremely simple and rational since it does not require any special equipment for cleaning the filter and does not require any cleaning work by an operator.

[Brief description of drawings]

FIG. 1 is a side view showing a cleaning device with a part thereof cut away.

FIG. 2 is a plan view of the same.

FIG. 3 is a cross-sectional view of a main part of a closed container for explaining an air blow operation by an outside air suction pipe in the cleaning device.

[Explanation of symbols]

1 dust container 2 Dust collection container 3 Lower end opening 4 Top open part 5 dust collection bag 5'top bag mouth 6 gas outlet 7 gas inlet 8 filters 9 casters 10 Outside air suction pipe 11 Outside air intake 12 Outside air outlet 13 Operation lever 14 hangers 15 Hanging device 16 solenoid valve 16a electromagnet 17 floor 18 Septa 19 Upper chamber 20 canopy 21 Top opening 22 Lower chamber

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47L 5/22 A47L 9/20 A47L 9/20 511 A47L 9/20 521 A47L 9/20 531

Claims (2)

(57) [Claims] 1. A negative pressure is created in the closed container by exhausting air from a gas outlet provided in the closed container, and the negative pressure sucks dust together with the gas from a gas inlet provided in the closed container to seal the inhaled gas. In a cleaning device configured to exhaust from the gas outlet through a filter provided in the container,
An outside air suction pipe having an outside air suction port at one end and an outside air discharge port at the other end is provided in the closed container, an electromagnetic valve is provided in the outside air suction pipe, and the electromagnetic valve is opened so that the air outlet is discharged from the gas outlet.
The outside air is naturally sucked from the outside air intake port into the inside of the closed container by the differential pressure between the negative pressure generated in the closed container due to the exhaust of the air and the outside pressure of the closed container , and the naturally sucked outside air is discharged from the outside air discharge port as described above. A cleaning device characterized in that air blown toward the filter to remove dust adhering to the filter. 2. An upper part separated by a partition plate in a closed container.
A chamber and a lower chamber are formed, and the partition plate has a cylindrical shape.
Suspend the filter, and open the top opening of the filter above
The lower part of the partition plate below.
In addition to providing a gas inlet for sucking gas into the chamber,
Gas outlet for exhausting gas in the upper chamber above the diaphragm
Of the gas in the upper chamber from the gas outlet
The gas in the lower chamber is passed through the filter as it is exhausted.
Exhausted by the negative pressure in the closed container accompanying the exhaust.
Inhale gas together with dust from the body inlet,
Exhaust from the gas outlet through a filter to filter only dust.
A cleaning device that captures and collects with a filter
The outside air suction pipe inside the upper chamber, and
Directed one end of the air intake tube into the upper opening of the filter.
An outside air outlet is provided, and the other end of the outside air suction pipe is
The outside air intake port
And the electromagnetic valve on the protruding pipe that forms the outside air suction port.
Is provided, and by opening the electromagnetic valve,
Negative pressure generated in the closed container due to exhaust of
Due to the pressure difference of atmospheric pressure, from the outside air inlet into the closed container
The outside air is naturally inhaled and the naturally inhaled outside air is exhaled as described above.
Air blow from the outlet to the above filter
It is characterized by removing dust adhering to the
Cleaning device.