JP3232600U - Nail dust collector with slopes and dividers - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nail dust collector having a slope and a partition plate for preventing dust and dust from scattering by having a dust partition plate. SOLUTION: A housing 10 having a slope portion 11, an air supply port 12 and an exhaust port 13, an air supply port opened in the slope portion, and an exhaust port opened in the bottom portion, and a slope portion. The dust partition plate 20 provided in the housing, the filter 30 provided inside the housing and close to the air supply port, and the gas provided inside the housing, in order to supply gas to the air supply port, the filter, and the inside of the housing. It has a slope and a partition plate provided with a gas guide device 40 for guiding and discharging the gas from the exhaust port to the outside. In addition to preventing the scattering of dust and dirt by installing a dust partition plate and slope, the position where the exhaust port is opened allows the gas to be blown to the person to be treated when it is discharged from the exhaust port. Prevent this and increase the comfort of the person being treated. [Selection diagram] Fig. 2

Description

The present invention relates to a dust collector, particularly for collecting dust and dirt, and relates to a nail dust collector having a slope and a partition plate for preventing dust and dust from scattering by having a slope and a dust partition plate.

A dust collector is a device for collecting dust and dirt, and is widely used in the field of nail care or nail art.

To make the surface of the nail smoother or to remove the hardened gel on the surface of the nail, usually polish the nail and cut or cut the nail with a nail tool such as a nail clipper, a file, scissors, a brush or a nail machine. Shave. When the surface of the nail is smoothed to some extent or the hardened gel is completely removed, the user can finish the nail art more finely. When the nail art is completed, the user also uses a nail machine to make fine adjustments to the nails.

However, in the process of brushing the nails, dust and dirt are generated on the nails, and some of them fall off or scatter, so a large amount of dust and dirt accumulates on the desk and in other areas of the room. As a result, the surrounding environment becomes dirty, which affects the respiratory health of the user and also poses a risk of dust explosion or fire.

Meanwhile, many of the conventional dust collectors are flat type, and it is not possible to efficiently suck in the dust and dirt scattered when brushing the nails, and the dust collection efficiency is only 50%, and the rest. 50% of the dust and dirt are scattered, and some of them are scattered even on the user's body, causing discomfort to the user.

Further, since the exhaust port of the conventional dust collector is often provided by opening at the bottom or both sides of the housing, when the sucked gas is discharged from the exhaust port, the gas is blown out onto the desk. The paper on the desk will be blown away by the gas. Moreover, the dust and dirt on the desk is also blown off by the gas, which causes discomfort to the user.

A main object of the present invention is to provide a nail dust collector having a slope and a partition plate capable of preventing dust and dust from scattering by having a dust partition plate.

Another object of the present invention is to provide a nail dust collector having a slope and a partition plate capable of preventing the gas from being blown directly onto the customer as it is discharged from the exhaust port.

Another object of the present invention is to provide a dust collector having a stretchable and flexible bellows hose, which has a slope for resting the palm of the person to be treated, thereby providing a claw. When polishing, dust and dirt that fall off or scatter will fall to the lower end of the slope due to gravity, greatly reducing the probability that dust and dirt will scatter everywhere.

To achieve the above object, the present invention provides a nail dust collector having a slope and a partition plate including a housing, a dust partition plate, a filter, and a gas guide device.

The housing has a slope portion, an air supply port, and an exhaust port. The slope portion is provided at the top of the housing, the air supply port is provided by opening to the slope portion, and the exhaust port is provided at the bottom of the housing. It is provided with an opening in.

The dust partition plate is provided on the slope portion.

The filter is provided inside the housing and is close to the air supply port.

The gas guide device is provided inside the housing, and is for guiding the gas to the inside of the air supply port, the filter, and the housing in order and discharging the gas from the exhaust port to the outside.

In one embodiment of the present invention, the dust partition plate is transparent in whole or in part.

In one embodiment of the present invention, the dust divider is located at the higher end of the slope.

In one embodiment of the present invention, the housing has an upper housing and a main body, the upper housing is coupled to the main body and constitutes a first chamber, a slope portion is provided on the upper housing, and a filter is provided. , Provided in the first chamber.

In one embodiment of the present invention, the housing has a main body and a lower housing, the main body is coupled to the lower housing and constitutes a second chamber, and a gas guide device is provided in the second chamber. The exhaust port is provided by opening in the lower housing.

In one embodiment of the invention, the housing further has at least one vent, the at least one vent being provided with an opening in the body.

In one embodiment of the present invention, the nail dust collector having a slope and a partition plate further comprises a control module having a circuit plate, a power supply unit and a switch, and the circuit plate is provided in a housing and is electrically connected to a gas guide device. The power supply unit is provided in the housing and is for selectively electrically connecting to the circuit board, and the switch is provided on the outer surface of the housing and is electrically connected to the circuit board. When the switch is turned on, the power supply unit and the circuit board become conductive, and the power supply unit can supply power to the circuit board, which activates the gas guidance device, and when the switch is turned off, the power supply is supplied. The unit and the circuit board are disconnected, and the power supply unit turns off the gas guidance device when the power supply to the circuit board is stopped.

In one embodiment of the present invention, the power supply unit has at least one battery and a power input terminal, the at least one battery being provided in a housing and selectively electrically connected to a circuit board to provide a power supply. The input terminal is provided on the outer surface of the housing, is selectively electrically connected to the circuit board, and is for inserting the insertion portion of the power cord.

In one embodiment of the present invention, the control module has a flow velocity adjusting member, and the flow velocity adjusting member is provided on the outer surface of the housing and is electrically connected to the circuit board to adjust the rotation speed of the gas guide device. This is for controlling the flow velocity of the gas.

In one embodiment of the present invention, a gripping groove is recessed on the outside of the housing, and the gripping groove is for being gripped by the user's hand.

The effect of the present invention is that the installation of the dust partition plate can prevent dust and dirt that fall or scatter from being blown off by the user's body and causing discomfort to the user. Of these, since the dust partition plate is transparent in whole or in part, the user can directly see his / her hand through the transparent dust partition plate and can continue brushing the nails without being affected by the work. ..

In addition, according to the present invention, the structure of the slope portion allows the palm of the person to be treated to be comfortably placed, and the air supply port is provided with an opening in the slope portion, so that dust and dust that fall or scatter when brushing the nails are provided. It is possible to suck in dust and greatly reduce the probability that dust and dust are scattered everywhere.

Further, according to the present invention, it is possible to prevent the gas from being blown to the person to be treated or blown out onto the desk when the gas is discharged from the exhaust port due to the position where the exhaust port is opened. Therefore, the paper on the desk will not be blown off by the gas. Moreover, since the dust and dirt on the desk are also not blown off by the gas, the comfort of the user can be enhanced.

It is an assembly perspective view of the nail dust collector which has the slope and the partition plate which concerns on a preferred embodiment of this invention. FIG. 5 is an exploded perspective view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention. It is a side view of the nail dust collector which has the slope and the partition plate which concerns on a preferred embodiment of this invention. FIG. 5 is a cross-sectional view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention. FIG. 5 is a plan view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention. It is a bottom view of the nail dust collector which has the slope and the partition plate which concerns on a preferred embodiment of this invention. It is a rear perspective view of the nail dust collector which has the slope and the partition plate which concerns on a preferred embodiment of this invention. It is a figure which shows the operation of the nail dust collector which has the slope and the partition plate which concerns on a preferred embodiment of this invention. It is a figure which shows the use of the nail dust collector which has the slope and the partition plate which concerns on a preferred embodiment of this invention. It is a figure which shows the state which opened the upper housing of the nail dust collector which has the slope and the partition plate which concerns on a preferred embodiment of this invention. It is another rear perspective view of the nail dust collector which has the slope and the partition plate which concerns on a preferred embodiment of this invention. It is a figure which shows the state which lifts the nail dust collector which has the slope and the partition plate which concerns on a preferred embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings and reference numerals so that those skilled in the art can understand and implement them in the light of the specification.

FIG. 1 is an assembly perspective view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention, and FIG. 2 is an assembly perspective view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention. It is an exploded perspective view of a collector. As shown in FIGS. 1 and 2, the present invention provides a nail dust collector having a slope and a partition plate including a housing 10, a dust partition plate 20, a filter 30, and a gas guide device 40. .. Below, a detailed explanation will be given for each element.

The housing 10 has a slope portion 11, an air supply port 12, and an exhaust port 13. The slope portion 11 is provided at the top of the housing 10, and the air supply port 12 is provided so as to open to the slope portion 11 for exhaust. The mouth 13 is provided so as to open at the bottom of the housing 10. Specifically, in a preferred embodiment of the present invention, the housing 10 has an upper housing 101, a main body 102, and a lower housing 103, and the upper housing 101 is coupled to the main body 102 and constitutes a first chamber 14. However, the slope portion 11 is provided on the upper housing 101. The air supply port 12 is provided so as to open in the upper housing 101 and communicates with the first chamber 14. The main body 102 is connected to the lower housing 103 and constitutes a second chamber 15, and the exhaust port 13 is provided so as to open in the lower housing 103 and communicates with the second chamber 15.

Of these, the housing 10 further has at least one vent 16. Specifically, at least one vent 16 is provided so as to open in the main body 102, and the first chamber 14 and the second chamber 15 communicate with each other through the vent 16. In a preferred embodiment of the present invention, the housing 10 has a plurality of vents 16, which are a plurality of concentric rings and are arranged in a concentric manner. However, the shape and arrangement of the vents 16 are not limited to this, and can be changed according to needs.

FIG. 3 is a side view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention, and FIG. 4 is a side view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention. It is a cross-sectional view of. As shown in FIGS. 3 and 4, in a preferred embodiment of the present invention, the slope portion 11 is provided on the upper housing 101, and a corner is sandwiched between the surface and the horizontal plane. As can be seen from the side view, a nail dust collector with a slope and a divider has a higher first end 17 and a lower second end 18.

FIG. 5 is a plan view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention. As shown in FIG. 5, in a preferred embodiment of the present invention, the upper housing 101 is provided with a plurality of air supply ports 12 having openings, and each air supply port 12 is polygonal and has different dimensions. .. Although these air supply ports 12 are arranged in a rectangular shape as a whole, their shape and arrangement are not limited to this, and the shape may be changed to a circular shape, an arc shape, or all having the same dimensions according to needs. , The whole may be arranged in a circular shape or another predetermined pattern.

FIG. 6 is a bottom view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention, and FIG. 7 is a bottom view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention. It is a rear perspective view of. As shown in FIGS. 6 and 7, in a preferred embodiment of the present invention, the exhaust port 13 is provided with an opening in the lower housing 103 and is close to the higher first end 17. By providing the exhaust port 13 close to the higher first end 17, the discharged gas may be blown out to other positions on the desk 90 and the paper on the desk 90 may be disturbed by the gas. , It is possible to prevent the dust and dirt on the desk 90 from being blown off by the gas and scattered, which enhances the comfort of the user.

See FIGS. 1, 2 and 3. The dust partition plate 20 is provided on the slope portion 11. Specifically, in a preferred embodiment of the present invention, the dust partition plate 20 is provided on the slope portion 11 and is located at the higher first end 17. Preferably, the dust partition plate 20 is transparent in whole or in part.

The filter 30 is provided inside the housing 10 and is close to the air supply port 12. Specifically, the filter 30 is provided in the first chamber 14 and is for filtering the gas entering from the air supply port 12. In a preferred embodiment of the present invention, the filter 30 is filtered cotton, the material of which is any of synthetic fibers, non-woven fabrics, glass fibers, activated carbon and the like having the effect of filtering dust and granules. However, the structure of the filter 30 is not limited to this, and can be changed to a structure having an effect of filtering a filtration net or other dust or granules according to needs.

The gas guide device 40 is provided inside the housing 10 and is for guiding the gas in the order of the inside of the air supply port 12, the filter 30, and the housing 10 and discharging the gas from the exhaust port 13 to the outside. .. Specifically, the gas guide device 40 is provided in the second chamber 15. In a preferred embodiment of the present invention, the gas guide device 40 is a fan, and the gas is introduced in the order of the air supply port 12 of the upper housing 101, the first chamber 14, the filter 30, and the ventilation port 16 of the main body 102. It flows into the chamber 15 of 2 and is discharged to the outside through the exhaust port 13.

See FIGS. 2 and 7. In a preferred embodiment of the present invention, the nail dust collector having a slope and a partition plate further comprises a control module 50 having a circuit plate 51, a power supply unit 52 and a switch 53. The circuit board 51 is provided in the housing 10 and is electrically connected to the gas guide device 40. The power supply unit 52 is provided in the housing 10 and is for being selectively electrically connected to the circuit board 51. The switch 53 is provided on the outer surface of the housing 10 and is electrically connected to the circuit board 51. Specifically, the circuit board 51 and the power supply unit 52 are provided in the second chamber 15, respectively, and the switch 53 is provided on the outer surface of the lower housing 103.

See FIGS. 2 and 7. In a preferred embodiment of the present invention, the power supply unit 52 has at least one battery 60 and a power input terminal 61. At least one battery 60 is provided in the housing 10 and is selectively electrically connected to the circuit board 51. The power input terminal 61 is provided on the outer surface of the housing 10 and is selectively electrically connected to the circuit board 51 to insert a power cord (not shown) insertion portion (not shown). It is a thing. Specifically, in a preferred embodiment of the present invention, the power supply unit 52 has two batteries 60, the two batteries 60 are each provided in the second chamber 15, and the power input terminal 61 is in the lower housing 103. It is provided on the outer surface.

See FIGS. 7 and 8. FIG. 8 is a diagram showing the operation of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention. When the switch 53 is turned on, the power supply unit 52 and the circuit board 51 are in a conductive state, and the power supply unit 52 can supply power to the circuit board 51 to activate the gas guidance device 40. The gas guidance device 40 guides the gas into the second chamber 15 in the order of the air supply port 12 of the upper housing 101, the first chamber 14, the filter 30, and the ventilation port 16 of the main body 102, and the exhaust port 13 It is discharged to the outside through. On the other hand, when the switch 53 is turned off, the power supply unit 52 and the circuit board 51 are disconnected, and the power supply unit 52 stops supplying power to the circuit board 51, thereby turning off the gas guide device 40.

In a preferred embodiment of the present invention, the control module 50 has a flow velocity adjusting member 70, and the flow velocity adjusting member 70 is provided on the outer surface of the housing 10 and is electrically connected to the circuit board 51. This is for controlling the flow velocity of the gas by adjusting the rotation speed of 40. Specifically, the flow velocity adjusting member 70 is provided on the outer surface of the housing 10 and is located at the higher first end 17 of the slope portion 11. The flow velocity adjusting member 70 is electrically connected to the circuit board 51, and is for controlling the flow velocity of the gas by adjusting the rotation speed of the gas guide device 40.

In a preferred embodiment of the present invention, the flow velocity adjusting member 70 has a plurality of buttons 71, and by pressing these buttons 71, the rotation speed of the gas guide device 40 is adjusted to control the flow velocity of the gas. Preferably, the flow velocity adjusting member 70 has three buttons 71 for each of low speed, medium speed, and high speed. However, in another embodiment, the flow velocity adjusting member 70 may have a plurality of adjusting knobs or touch panels, and the rotation speed of the gas guidance device 40 is adjusted by turning these adjusting knobs or tapping the touch panel. Control the flow velocity of the gas.

Preferably, the control module 50 further includes a battery level indicator 54. The battery remaining amount display member 54 is provided on the outer surface of the housing 10 and is close to the higher first end 17 of the slope portion 11. It is preferably located in the vicinity of the flow velocity adjusting member 70. The battery remaining amount display member 54 is electrically connected to the circuit board 51 and is for displaying the remaining amount of these batteries 60. Preferably, the battery remaining amount display member 54 has two display bars 55, and the light emitted from these display bars 55 is used to display the remaining amount of the battery 60. For example, when the remaining battery 60 is full, the two display bars 55 emit light at the same time, while when the remaining battery 60 is halved, only one display bar 55 emits light. However, the number of display bars 55 is not limited to this, and the number can be increased according to needs.

See FIGS. 8 and 9. FIG. 9 is a diagram showing the use of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention. Upon use, the user places a nail dust collector with slopes and dividers according to the present invention on a desk 90. Next, the lower second end 18 of the slope portion 11 is directed toward the person to be treated, and the higher first end 17 of the slope portion 11 is directed toward himself, and the subject's hand is directed to the upper housing 101. Place it on the slope portion 11. Then, when the user turns on the switch 53, the power supply unit 52 and the circuit board 51 are in a conductive state, and the power supply unit 52 can supply power to the circuit board 51 to activate the gas guidance device 40. In this way, the user can brush the subject's nails with the nail machine 91.

In the process of brushing the nails, dust and dirt from the nails get on the gas and enter the air supply port 12 of the upper housing 101 in order to enter the first chamber 14 and block the filter 30 in the first chamber 14. Concentrate on the surface. In this way, the effect of collecting dust and dirt is achieved. Although some dust and dirt are scattered toward the higher first end 17 of the slope portion 11, the dust and dust are returned in contact with the dust partition plate 20 by the installation of the dust partition plate 20. Since the gas enters the first chamber 14 through the air supply port 12, it has the effect of collecting dust and dirt. By installing the dust partition plate 20, it is possible to prevent dust and dirt from scattering to the user's body.

In a preferred embodiment of the present invention, since the dust partition plate 20 is transparent, when the user polishes the nails of the person to be treated, the polishing work is not hindered and the transparent dust partition plate 20 is used. The polishing status can be visually recognized.

When the user turns off the switch 53 after polishing, the battery 60 or the power input terminal 61 is disconnected from the circuit board 51, and the combination of the power cords of the battery 60 or the power input terminal 61 is connected to the circuit board 51. The gas guidance device 40 is turned off when the power supply is stopped. In this way, the dust collector of the present invention stops collecting dust and dirt.

During that time, the user can directly see the accumulation state of dust and dirt in the filter 30 through the air supply port 12 of the upper housing 101, so that the timing of cleaning or replacement of the filter 30 can be grasped, and the slope of the present invention can be grasped. And there is no need to open and check the nail dust collector with the divider.

FIG. 10 is a view showing a state in which the upper housing 101 of the nail dust collector having the slope and the partition plate according to the preferred embodiment of the present invention is opened. As shown in FIG. 10, when the user visually determines that the filter 30 needs to be cleaned or replaced through the air supply port 12 of the upper housing 101, the user opens the upper housing 101 and first opens the upper housing 101. The dirty filter 30 is removed from the chamber 14, the dirty filter 30 is washed and returned into the first chamber 14, or a new filter 30 is installed in the first chamber 14 and the upper housing 101 is placed on the main body 102. The filter 30 can be cleaned or replaced by returning to.

FIG. 11 is another rear perspective view of a nail dust collector having a slope and a partition plate according to a preferred embodiment of the present invention, and FIG. 12 has a slope and a partition plate according to a preferred embodiment of the present invention. It is a figure which shows the state which lifts a nail dust collector. As shown in FIGS. 11 and 12, in a preferred embodiment of the present invention, the grip groove 80 is recessed on the outside of the housing 10, but the grip groove 80 is for being gripped by the user's hand. is there. Specifically, the grip groove 80 is recessed in the lower housing 103 and is close to the higher first end 17.

In a preferred embodiment of the present invention, the exhaust port 13 is provided so as to open in the lower housing 103 and communicates with each other in the gripping groove 80. Since the higher first end 17 is directed toward the user, when the gas is discharged from the exhaust port 13, the gas does not blow directly onto the body of the person to be treated, and the comfort of the person to be treated is improved. Increase.

From the above, the present invention can prevent the dust and the dust that fall or scatter from the dust partition plate 20 from being scattered to the user's body and causing discomfort to the user. Of these, since the dust partition plate 20 is transparent in whole or in part, the user can directly see his / her hand through the transparent dust partition plate 20, and the work is not affected and the nail polishing is continued. be able to.

Further, in the present invention, the structure of the slope portion 11 allows the palm of the person to be treated to be comfortably placed, and the air supply port 12 is provided so as to open in the slope portion 11, so that the nails fall off easily when brushing the nails. It is possible to suck in the scattered dust and dirt and greatly reduce the probability that the dust and dirt are scattered.

Further, the present invention prevents the gas from being directly blown to the person to be treated or blown out to the desk 90 when the gas is discharged from the exhaust port 13 due to the position where the exhaust port 13 is opened. Being possible, the 90 papers on the desk will not be blown off by the gas. Moreover, since the dust and dirt on the desk 90 are also not blown off by the gas, the comfort of the user can be enhanced.

The above content merely describes a preferred embodiment of the present invention and does not formally limit the present invention. Therefore, on the premise of the same spirit of the present invention, any various improvements relating to the present invention may be made. All changes should be included in the claims of the present invention.

10 Housing 101 Upper housing 102 Main body 103 Lower housing 11 Slope 12 Air supply port 13 Exhaust port 14 First chamber 15 Second chamber 16 Vent 17 First end 18 Second end 20 Dust partition plate 30 Filter 40 Gas guidance device 50 Control module 51 Circuit board 52 Power supply unit 53 Switch 54 Battery level display member 55 Display bar 60 Battery 61 Power supply input terminal 70 Flow velocity adjustment member 71 Button 80 Grip groove 90 Desk top 91 Nail machine

Claims (10)

A housing having an air supply port, a slope portion, and an exhaust port, the air supply port being provided with an opening at the slope portion, and the exhaust port being provided with an opening at the bottom portion.
The dust partition plate provided on the slope and
A filter provided inside the housing and close to the air supply port,
It is provided inside the housing, and includes the air supply port, the filter, and a gas guide device for sequentially guiding the gas into the inside of the housing and discharging the gas from the exhaust port to the outside. A featured nail dust collector with slopes and dividers. The nail dust collector having a slope and a partition plate according to claim 1, wherein the dust partition plate is entirely or partially transparent. The nail dust collector having a slope and a partition plate according to claim 1, wherein the dust partition plate is located at the higher end of the slope portion. The housing has an upper housing and a main body, the upper housing is connected to the main body and constitutes a first chamber, the slope portion is provided on the upper housing, and the filter is the same. The nail dust collector having a slope and a partition plate according to claim 1, wherein the nail dust collector is provided in the first chamber. The housing has a main body and a lower housing, the main body is coupled to the lower housing and constitutes a second chamber, and the gas guide device is provided in the second chamber and the exhaust is provided. The nail dust collector having a slope and a partition plate according to claim 1, wherein the mouth is provided so as to open in the lower housing. The slope and partition plate according to claim 4 or 5, wherein the housing further has at least one vent, and the at least one vent is provided with an opening in the main body. Nail dust collector. Further equipped with a control module having a circuit board, a power supply unit and a switch,
The circuit board is provided in the housing and is electrically connected to the gas guide device.
The power supply unit is provided in the housing and is for being selectively electrically connected to the circuit board.
The switch is provided on the outer surface of the housing and is electrically connected to the circuit board.
When the switch is turned on, the power supply unit and the circuit board are in a conductive state, and the power supply unit can supply power to the circuit board to activate the gas guide device.
When the switch is turned off, the power supply unit and the circuit board are disconnected, and the power supply unit stops supplying power to the circuit board, so that the gas guide device is turned off. , A nail dust collector having the slope and partition plate according to claim 1. The power supply unit has at least one battery and a power input terminal.
The at least one battery is provided in the housing and selectively electrically connected to the circuit board.
The power input terminal is provided on the outer surface of the housing, is selectively electrically connected to the circuit board, and is for inserting a power cord insertion portion. A nail dust collector having the slope and partition plate according to claim 7. The control module has a flow velocity adjusting member.
The flow velocity adjusting member is provided on the outer surface of the housing and is electrically connected to the circuit board, and is for controlling the flow velocity of the gas by adjusting the rotation speed of the gas guide device. 7. A nail dust collector having a slope and a partition plate according to claim 7. The nail having a slope and a partition plate according to claim 1, wherein a grip groove is recessed on the outside of the housing, and the grip groove is intended to be gripped by a user's hand. Dust collector.

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