JP2016007362A - Cleaner for removing volcanic ash and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaner for removing volcanic ash and the like, which has good usability due to the compact size and the light weight thereof and thus is suitable for a domestic use, the cleaner being capable of collecting a dust having a fine particle diameter containing the volcanic ash and the like without causing clogging of a filter and thereby without reducing a suction force, and also capable of suppressing the fine dust from being re-emitted along with an exhaust air.SOLUTION: In a cleaner 1 that comprises a blower 3, a suction head 4, and an operation handle 5, a coarse dust filter 16 for catching a coarse dust, among the dust containing the volcanic ash and the like and being sucked from the suction head 4, is arranged at a front stage side of the blower 3; a fine dust filter 22 for catching a fine dust discharged along with the exhaust air is arranged at a latter stage side of the blower 3; and a dust collection bag 23 for collecting the fine dust from the fine dust filter at the time when suction operation is stopped is attached at a lower position of the fine dust filter. Between the fine dust filter and the dust collection bag, a check valve 19 for causing the fine dust to fall from the fine dust filter into the dust collection bag by opening a valve at the time when the suction operation is stopped. The fine dust filter is covered by an exhaust cover 25.

Description

  The present invention relates to a vacuum cleaner capable of continuously collecting dust while suppressing a decrease in suction force even when fine dust such as volcanic ash is sucked.

  In recent years, activities of some active volcanoes such as Sakurajima and Shinmoedake in Southern Kyushu have become active, and the scale and frequency of eruptions, explosions, and volcanic eruptions have increased.

  In particular, when volcanic ash falls in urban areas where people are active (hereinafter referred to as “falling ash”), the impact on the living environment is significant. is there. There is a large-scale cleaning vehicle (road sweeper) that sucks and cleans volcanic ash like a snowplow as a wide area cleaning such as a main road, but the purpose of the road sweeper is to roughly remove a wide range of volcanic ash, In addition to cleaning a large amount of volcanic ash that has rolled up in the air after passing through the road sweeper, and has re-deposited, narrow alleys where road sweepers and road sweepers cannot pass, and the surroundings of homes and offices, etc. There is no method, and the mainstream is dredging, classic sweeping with dust collectors, and flushing with a large amount of tap water.

  The problem with the cleaning method is that the volcanic ash particles are fine and light, so that the volcanic ash rises during cleaning, and there is a risk of health damage if workers and people around them inhale. Another problem is that, similar to when cleaning a road sweeper, after a while, the volcanic ash falls down into the air and then hits again. Moreover, water shortage may occur due to excessive use of precious tap water.

  As a preferable cleaning method, it is ideal that the volcanic ash is sucked and collected by a dust collector such as a general household vacuum cleaner and the exhaust air is clean, but unfortunately there is no dust collector suitable for removing volcanic ash. Household vacuum cleaners may be used to clean a small amount of small amounts of volcanic ash, such as entrances and entrances to balconies. However, if volcanic ash is actively sucked in by a general household vacuum cleaner, The filter of the particle size is clogged, and there is a problem that the suction force is reduced even though there is a sufficient margin in the dust collection capacity of the filter. This is because the particle size of sand generally falls from several hundred μm to several mm, whereas the particle size of volcanic ash that falls around urban areas slightly away from the volcano is much finer, around several tens of μm.

  In addition, the pressure loss that occurs when the suction air passes through the volcanic ash collected in the dust bag that also serves as a filter is much larger than that of ordinary indoor garbage and sand. There is also a problem that the decrease in the temperature is remarkable. This is also due to the small particle size of the volcanic ash. Thus, not only can the cleaning be performed in a state where the suction force is reduced, but a failure due to a load or heat generation of the blower occurs if the continuous use is continued.

  On the other hand, cheap vacuum cleaners using only coarse coarse dust filters that are hard to clog volcanic ash, and cyclone type vacuum cleaners that do not have filters, are not at risk of reduced suction and blower failure due to clogging of volcanic ash. Although it is low, the ability to collect fine volcanic ash is inferior, so there is a problem that a large amount of volcanic ash is discharged together with the exhaust air. That is, the problem of filter clogging and volcanic ash discharge to the exhausted air is in a trade-off relationship, and basically a home vacuum cleaner cannot clean the volcanic ash.

  In addition, outdoor vacuum cleaners and dust collectors with a large filter surface area and dust collection capacity can gain some time until the aforementioned problems occur, so some volcanic ash can be cleaned. Since the configuration is the same as that of a household vacuum cleaner, the expected problems are the same and there is a risk of clogging and failure in the end. In addition, since the overall structure of the vacuum cleaner is inevitably large, there are other problems such as being heavy and not easy to carry and use in a narrow place, and difficult for the elderly and children to handle. In any case, there is no home vacuum cleaner suitable for volcanic ash cleaning.

  FIG. 4 shows a schematic structural example of a conventional general household vacuum cleaner. The general household vacuum cleaner shown in FIG. 4 has a structure in which a filter disposed in the front stage of the blower also serves as a dust collection bag (for example, a paper pack) for dust (for example, see Patent Documents 1 to 3). . The filter disposed at the rear stage of this filter is based on various ideas and purposes of each cleaner manufacturer. For example, it protects the blower and lowers the dust level in the exhaust air to the level of an air cleaner.

  Since the filter for dust collection is arranged in the front stage of the blower, the size of the filter is inevitably limited by the capacity of the vacuum cleaner body, and it is not possible to secure a wide filter surface area, and the particle size is fine like volcanic ash When the dust is sucked, the filter having a small surface area is immediately clogged, and the suction force is immediately reduced. Moreover, since the filter has a structure that also serves as a dust collection bag (such as a paper pack), the pressure loss of the suction air increases according to the amount of dust collected in the filter, and the suction force decreases. Furthermore, if the air blower continues to be used in a state where there is no air flow, the problem arises that the heat generated by the motor of the blower increases and is likely to break down.

  In other words, when dust such as volcanic ash is sucked in by a general household vacuum cleaner, the volcanic ash is designed not to be re-released along with the exhaust air, but on the other hand, the filter is clogged or collected by volcanic ash The suction force is reduced by pressure loss, and the blower motor is likely to break down.

Japanese Patent Laid-Open No. 5-261333 JP-A-8-24187 JP 2005-192832 A

  The present invention has been made in view of the above-described problems, and fine dust particles containing volcanic ash and the like are collected without clogging the filter, and thus without reducing the suction force. The purpose is to provide a vacuum cleaner for removing volcanic ash and the like that can suppress the re-release of fine sand dust, and to provide a vacuum cleaner for removing volcanic ash and the like that is small and light and suitable for home use. To do.

  In order to solve the above-described problems, the present invention relates to a vacuum cleaner including a blower, a suction head, and an operation handle, and a blower having a coarse dust filter that collects coarse dust out of dust including volcanic ash sucked from the suction head. A fine dust filter that collects fine dust discharged together with exhaust air is placed on the rear side of the blower, and is collected below the fine dust filter when the suction operation is stopped. The main feature is the installation of a dust bag that collects fine dust.

  According to the present invention, if a fine dust filter that collects fine dust such as volcanic ash is placed in the front stage of the blower, it will be clogged immediately and the suction power will decrease, but since it is placed on the rear stage side of the blower, such a There is nothing. Also, instead of using the fine dust filter itself as a dust collection bag, a dust collection bag is attached to the lower position of the fine dust filter separately from the fine dust filter and collected by the fine dust filter when the suction operation is stopped. Is dropped and collected in the dust bag below. In addition, the fine dust filter is inevitably cleaned by the dust collection discharge operation, so that clogging of the fine dust filter when the blower is operated again is suppressed and pressure loss due to the dust collection is reduced. The decrease can be eliminated.

  In addition, the fine dust filter is not housed in the blower housing, but is placed outside, so that the degree of freedom in filter placement increases, so that the size of the filter and the surface area of the filter are increased. The problem that the structure becomes large is eliminated, and the size and weight of the vacuum cleaner body can be reduced and reduced in weight. On the other hand, because the filter size can be increased, the dust collection capacity can be increased, and at the same time, the clogging and pressure loss due to the collected dust can be suppressed. The dust capacity is much higher.

  In general, all consumable parts such as filters and dust bags are designed to be housed in the product housing to improve the design and completeness of the product. If the filter is enlarged with emphasis on the basic functions of the product, the size of the product will increase, the weight will increase, and as a result, it will become a large vacuum cleaner that is not easy to use. On the other hand, in the case of the present invention, the consumable parts to be frequently replaced and disposed such as a filter and a dust bag are arranged outside the blower housing, so there is no need to enlarge the main body of the vacuum cleaner, and it is small and light and easy to use. For example, a stick type structure can be used.

  The second feature of the present invention is that the mesh size of the coarse dust filter is a size capable of passing particles having a diameter of 2 mm or less. The mesh size of the fine dust filter is preferably a size capable of collecting particles having a diameter of 0.3 μm or more.

  According to the present invention, the fine dust filter is vertically long, and the longest side of the fine dust filter is set longer than the longest side of the vertical blower and shorter than the longest side of the vacuum cleaner main body. Three features.

  According to a fourth aspect of the present invention, the fine dust filter is covered with an exhaust cover that has a headed cylindrical shape and forms an exhaust port at the lower end.

  The present invention closes the valve between the fine dust filter and the dust bag during the suction operation of the blower to guide fine dust discharged from the blower to the fine dust filter, and opens the valve when the blower suction operation is stopped to open the fine dust. A fifth feature is that a check valve is provided to drop the collected dust collected by the dust filter into the lower dust bag.

  The sixth feature of the present invention is that the vacuum cleaner body of the vacuum cleaner including the blower, the suction head, and the operation handle is a vertically oriented stick type.

  According to the present invention, a compact and lightweight vacuum cleaner capable of continuously collecting fine dust particles containing volcanic ash etc. while suppressing a reduction in suction force due to filter clogging, clogging by dust collection, pressure loss, etc. Can be realized.

  That is, according to the present invention, by installing a fine dust filter that collects fine dust particles containing volcanic ash etc. on the rear stage side of the blower, the degree of freedom of installation such as the size and surface area of the fine dust filter is increased, and the vacuum cleaner By reducing the size of the main body, it is possible to secure a large capacity and surface area of the fine dust filter. In addition, the fine dust filter and the dust bag are connected to each other vertically, and the dust filter is inevitably cleaned and the collected dust can be discharged, so that clogging of the fine dust filter can be suppressed and collected. Blockage and pressure loss due to collected dust such as volcanic ash can be suppressed. As a result, it is possible to realize a small and light vacuum cleaner for removing volcanic ash and the like that can suppress the load and heat generation on the motor of the blower and can continuously clean the volcanic ash and the like without causing the motor to fail.

  As a social side effect, there will be no flushing with a large amount of tap water, which will save water resources. Also, in the ash fall area, it is often impossible to open windows in the summertime when the temperature is high, and the operation rate of the air conditioner is high, but by using the vacuum cleaner of the present invention, it is possible to easily clean the house around the entrance and veranda. As a result, the volcanic ash does not enter the room even when the window is opened except during ash fall, so the use of the air conditioner can be suppressed by opening the window. This also saves electrical energy.

Configuration diagram showing a vacuum cleaner for removing volcanic ash and the like according to the present invention, FIG. 1 is a schematic structural diagram showing from intake to exhaust of the cleaner shown in FIG. Sectional view of the main part showing the operation of the check valve, It is a schematic structure diagram showing from intake to exhaust in a conventional general vacuum cleaner.

  The best mode for carrying out the present invention will be described below with reference to the drawings. The present invention is a small and lightweight vacuum cleaner for homes that does not cause clogging of the filter or decrease in suction force even when sucking fine dust particles such as volcanic ash, and cleans exhaust air. It was realized. In FIG. 1, the code | symbol 1 has shown the vacuum cleaner for removal, such as volcanic ash.

  As shown in FIG. 1, a vacuum cleaner for removing volcanic ash (hereinafter referred to as a “vacuum cleaner”) 1 includes a vacuum cleaner main body 2 that is substantially blown up and down and a front end side of the blower 3 that can be swung. A suction head 4 and an operation handle 5 provided at the rear end of the blower 3 are provided. That is, the vacuum cleaner 1 in the present embodiment has a so-called stick-type shape that can stand on its own.

  As shown in FIGS. 1 and 2, a blade 7 is disposed on the front end side and a motor 8 is disposed on the rear end side inside the housing 6 of the blower 3. A suction pipe 10 is connected to a suction port 9 provided at the front end of the housing 6 of the blower 3, and the suction head 4 is supported at the tip of the suction pipe 10 via a neck portion 11 so as to be able to swing. A tip suction port 12 is provided on the lower surface of the suction head 4, and a brush 13 is disposed in the tip suction port 12. A grip 14 is provided at the rear end of the operation handle 5. Reference numeral 15 denotes a string portion provided at the upper end corner of the exhaust cover 25, which will be described later. By hooking the string portion 15 on the hook portion of the gripping portion 14, the shape of a filter (including a fine dust filter 22) described later is formed. It can be held in a standing position.

  Among the dust containing volcanic ash sucked from the suction head 4 between the suction port 9 on the front stage side of the blade 7 and inside the casing 6 of the blower 3, coarse dust (hereinafter referred to as “coarse dust”). A coarse dust filter 16 is collected and arranged. The coarse dust filter 16 is provided with a mesh having a size that collects coarse dust having a particle diameter of more than 2 mm, that is, sand dust having a particle diameter of 2 mm or less can pass through. For example, it is composed of a mesh filter made of a metal mesh such as metal (stainless steel).

  An exhaust pipe 18 is connected to an exhaust port 17 provided on the side surface of the housing 6 of the blower 3, and an upper connection pipe 20 and a lower connection pipe 21 are connected to the tip of the exhaust pipe 18 via a check valve 19. Has been. A fine dust filter 22 is attached to the upper connecting pipe 20 so as to be detachably attached so as to collect substantially fine dust particles (hereinafter referred to as “fine dust”). A dust collection bag 23 for collecting fine dust collected by the fine dust filter 22 is detachably attached to the lower connecting pipe 21 by a band 24 or the like.

  The fine dust filter 22 has a performance capable of collecting fine particles having a particle diameter of 2 mm or less transmitted through the coarse dust filter 16 and having a particle diameter of 0.3 μm or more. For example, a plurality of types of filters such as a cloth filter and a HEPA filter are laminated, and the outermost side is covered with a lightweight headed cylindrical exhaust cover 25 made of a resin / plastic system such as vinyl. An exhaust air port 26 is formed at the lower end of the exhaust cover 25. Therefore, the exhaust air after the fine dust is collected by the fine dust filter 22 flows along the inside of the exhaust cover 23 as indicated by the arrow, and is exhausted from the exhaust port 26 at the lower end.

  When the blower 3 is in the suction operation (during operation), the check valve 19 is operated by the wind pressure to close the inlet of the lower connecting pipe 21 and the blower 3 is stopped in the suction operation (during operation). When stopped, the valve element 27 (FIG. 3) returns to its original position due to the restoring force of the spring 28 and functions to open the inlet of the lower connecting pipe 21. Therefore, during the suction operation of the blower 3, the suction air W is sent from the exhaust pipe 18 through the upper connecting pipe 20 to the fine dust filter 22 side by the wind pressure, while when the blower 3 is stopped, the check valve 19 is turned off. The body 27 returns to the original position, the inlet of the lower connecting pipe 21 is opened, and the collected matter A collected by the fine dust filter 22 is removed from the upper connecting pipe 20 as shown by the dotted line in FIG. It passes through the lower connecting pipe 21 and falls into the dust bag 23 to collect dust.

  The fine dust filter 22 is not housed and disposed inside the housing 6 of the blower 3 but is disposed outside the housing 6 so that the structure around the blower 3 is not enlarged, and therefore the blower 3 and thus the cleaning is performed. While reducing the size and weight of the machine body 2, the size and surface area of the filter can be freely increased to some extent. For this reason, the dust collection capacity can be increased because the filter can be made larger, the dust collection capacity can be increased, and at the same time, the clogging and pressure loss due to the collected dust can be suppressed. To be high.

  The dust collection bag 23 may be any bag or container that can be attached to the lower connecting pipe 21, and the material is not particularly limited, such as a paper pack, vinyl, plastic, or the like. For example, a super plastic bag or a volcanic ash collection bag distributed free of charge by the government can be used as it is. Further, the check valve 19 is not necessarily required if the dust bag 23 can be firmly fixed to the lower connecting pipe 21 and the strength of the dust bag 23 is sufficient. In this case, since the inside of the dust bag 23 is a closed space, the suction air passing through the exhaust pipe 18 flows to the upper connecting pipe 20 side and goes to the fine dust filter 22.

  The shape of the vacuum cleaner according to the present invention may be a stick type or a canister type. In the present embodiment, the stick type in which the blower 3 can be arranged higher than the ground surface is shown in order to suppress the spread of volcanic ash due to the workability and ease of use outdoors and exhaust air as much as possible.

  Next, the action of the cleaner 1 will be described in detail based on the flow of suction air from intake to exhaust using FIGS.

  When an operator turns on a switch (not shown) of the vacuum cleaner 1 and operates the motor 8 of the blower 3 to rotate the blade 7, the air sucked from the tip suction port 12 of the suction head 4 is transferred to the casing 6 of the blower 3. It passes through the inside and is discharged from the exhaust port 17 of the housing 6 to the exhaust pipe 18, from which it is guided to the check valve 19, the upper connecting pipe 20, and the fine dust filter 22, and from the exhaust port 26 at the lower end of the exhaust cover 25 Exhausted. In the pipe of the check valve 19, the valve body 27 rotates clockwise in FIG. 2 against the urging force of the spring 28 by the pressure air from the exhaust pipe 18 so that the inlet of the lower connecting pipe 21 is always closed. Operates on.

  As a result, during the suction operation of the blower 3, the suction wind W including volcanic ash, dust, and sand sucked from the tip suction port 12 of the suction head 4 is received by the first coarse dust filter 16 disposed on the front stage side of the blower 3. Large garbage and dust are collected first. Since the dust size of the coarse dust filter 16 is 2 mm or less, the volcanic ash is sent to the blades 7 on the side of the blower 3 without being collected by the coarse dust filter 16 and exhausted from there. Guided by the pipe 18 and the upper connecting pipe 20 and collected by the fine dust filter 22 at the subsequent stage.

  For this reason, problems such as blockage and clogging of the coarse dust filter 16 due to volcanic ash or the like in the front stage of the blower 3 do not occur, and volcanic ash or the like can be sucked while maintaining a high suction force. As a result, the volcanic ash that has accumulated and thickened at the end of the road or the corner of the passage can be efficiently cleaned by sucking it with the brush 13 at the tip.

  In addition, since the material, structure, size, etc. of the fine dust filter 22 are determined by researching the dust level of the exhaust air, the dust level of the exhaust air discharged from the fine dust filter 22 in all directions is basically the general level. Although it is the same as a vacuum cleaner, it is unpleasantly uncomfortable if exhaust is discharged directly to the operator's face, so the fine dust filter 22 has a double structure covered with a lightweight exhaust cover 25 that does not allow air to pass through. Thus, the exhaust gas flows in the direction of the blower 3 or the operator's feet.

  Next, when cleaning is completed and the blower 3 is stopped, the internal pressure of the fine dust filter 22 decreases, and the valve body 27 returns to the original position by the restoring force of the spring 28 as shown in FIG. The inlet of the tube 21 is opened. Thus, the dust collection A collected in the fine dust filter 22 falls from the upper connecting pipe 20 into the lower connecting pipe 21 as indicated by a dotted line, and is collected as it is in the lower dust collecting bag 23. At this time, the fine dust filter 22 vibrates or shrinks somewhat, so that the volcanic ash and the like attached to the side wall of the fine dust filter 22 are removed. In other words, dust collection and filter cleaning are inevitably performed, and the suction force can be maintained.

  Since the fine dust filter 22 and the dust bag 23 externally attached to the blower 3 can be easily detached from the upper connecting portion 20 and the lower connecting portion 21 of the check valve 19, the fine dust filter 22 can be easily replaced or cleaned. Yes. The dust bag 23 can be removed and disposed of as it is.

  According to the present invention, particularly in urban areas of the ash fall area, not only household verandas and front doors, but also volcanic ash that could not be removed by large-sized cleaning vehicles (road sweepers), narrow alleys where road sweepers cannot pass, and households and businesses The volcanic ash around the station can be efficiently removed and cleaned by the vacuum cleaner of the present invention having the size of a general household vacuum cleaner without sweeping or cleaning with a large amount of tap water. It has become possible.

  In addition, according to the present invention, the conventional cleaning method is concerned that there is a risk of health hazards that the volcanic ash soars during the cleaning because the volcanic ash particles are fine and light, and the workers and the people in the vicinity inhale. I no longer worry. In addition, there is no longer a worry that water shortages will occur due to excessive use of precious tap water.

  And according to the present invention, the coarse coarse dust filter which is hard to clog the volcanic ash is arranged on the front side of the blower, and the fine fine dust filter which collects the volcanic ash is arranged on the rear side of the blower. It can prevent the suction force from being reduced due to clogging, improve the collection ability for fine particles of volcanic ash, and reduce the structure of the vacuum cleaner body by attaching a fine dust filter to the vacuum cleaner body, and carry it It was easy to use in a small place, easy to handle for the elderly and children, and realized a household vacuum cleaner suitable for volcanic ash cleaning.

  The vacuum cleaner for removing volcanic ash and the like according to the present invention can be used as a vacuum cleaner that can easily and comfortably clean volcanic ash as if it were a household vacuum cleaner. Moreover, it can be used not only as volcanic ash but also as a general outdoor vacuum cleaner as well as a pollen removal cleaner for pollen areas. In addition, because it is compact and lightweight, it is easy to carry and store, so it can be expected to be used as a commercial dust collector at construction sites.

1 vacuum cleaner (vacuum ash removal vacuum cleaner)
DESCRIPTION OF SYMBOLS 2 Vacuum cleaner body 3 Blower 4 Suction head 5 Operation handle 6 Blower housing 7 Blade 8 Motor 9 Suction port 10 Suction pipe 11 Neck portion 12 Tip suction port 13 Brush 14 Grasping portion 15 String portion 16 Dust filter 17 Exhaust port 18 Exhaust Pipe 19 Check valve 20 Upper connecting pipe 21 Lower connecting pipe 22 Dust filter 23 Dust collection bag 24 Band 25 Exhaust cover 26 Exhaust port 27 Valve element 28 Spring A Dust collector W Suction air G Ground

Claims (6)

  In a vacuum cleaner equipped with a blower, a suction head, and an operation handle, a coarse filter that collects coarse dust out of dust including volcanic ash sucked from the suction head is placed on the front side of the blower and discharged on the rear side of the blower. A fine dust filter that collects fine dust discharged together with air is arranged, and a dust collection bag that collects the dust collected by the fine dust filter when the suction operation is stopped is located below the fine dust filter. A vacuum cleaner for removing volcanic ash, etc., characterized by being attached.   The vacuum cleaner for removing volcanic ash or the like according to claim 1, wherein the coarse dust filter has a mesh size capable of passing particles having a particle size of 2 mm or less.   The fine dust filter is vertically long, and the longest side of the fine dust filter is set to be longer than the longest side of the vertical blower and shorter than the longest side of the cleaner body. A vacuum cleaner for removing volcanic ash and the like according to claim 1 or 2. The volcanic ash according to any one of claims 1 to 3, wherein the fine dust filter is covered with an exhaust cover which is a headed cylinder and forms an exhaust port at the lower end. Vacuum cleaner for removal.   Between the fine dust filter and the dust bag, the valve is closed during the suction operation of the blower to guide the fine dust discharged from the blower to the fine dust filter, and when the suction operation of the blower is stopped, the valve is opened and captured by the fine dust filter. 5. A vacuum cleaner for removing volcanic ash or the like according to any one of claims 1 to 4, further comprising a check valve for dropping collected dust into a lower dust bag. . The cleaner for removing volcanic ash or the like according to any one of claims 1 to 5, wherein the vacuum cleaner body of the vacuum cleaner including a blower, a suction head, and an operation handle is a vertical stick type. .

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