KR20220053413A - Multifuctional blower device - Google Patents

Abstract

Provided is a multifunctional blower device with a blower function and an air cleaning function integrated, in which a hand fan module is detachably attached to an air cleaner module. The hand fan module includes: a blower unit generating an air flow by an electric motor and a rotary fan; and a grip unit including a first display unit placed on one side of the blower unit, and displaying an operation status of the hand fan module on an upper surface, and a first button unit placed near the first display unit, and controlling the hand fan module and the air cleaner module by a pressing motion. The air cleaner module includes: a cylindrical filter unit placed on a lower side of the blower unit and cleaning the air; a lower housing with an opened upper side, and accommodating the filter unit inside, and including a lower ventilation hole and a lower support unit formed by a plurality of longitudinal rods placed on side surfaces; and an upper housing including an accommodation unit placed between the hand fan module and the lower housing, and accommodating the blower unit, an upper ventilation hole placed on an inner side of the accommodation unit to correspond to the blower unit and the filter unit, a holding unit placed on one side of the accommodation unit, and corresponding to the grip unit, a second display unit displaying the operation status of the air cleaner module and the air pollution level on a side surface of the holding unit, and a second button unit placed near the second display unit, and controlling the hand fan module and the air cleaner module by a pressing motion. The present invention aims to provide a multifunctional blower device which is capable of allowing a user to conveniently use the multifunctional blower device.

Description

Multifuctional blower device

The present invention relates to a multipurpose blower, and more particularly, to a multipurpose blower in which a blowing function and an air purifying function are combined.

A fan is a device that blows air forward by rotating a rotating fan by driving a motor. Such a fan is often used in hot summer, and recently, a portable fan that can cool the heat while moving from the outside has been widely used. In particular, with the development of battery technology, rechargeable portable fans have been spread, so that it is possible to conveniently receive cool air through charging without replacing batteries.

Such a portable fan is also equipped with an air purifier function in order to cope with fine dust, which is a big topic in recent years. As in Patent Registration No. 1975960 (a filter device for a portable fan and a portable air purifier using the same), a filter is installed on the rear part of the protective cover to filter pollutants in the air moving from the rear to the front side by the rotating fan Techniques to enable this have been proposed.

Republic of Korea Patent No. 1975960 (published date: May 7, 2019, title of invention: filter device for portable fan and portable air purifier using the same)

The problem to be solved by the present invention is that by combining a portable fan with an air purifier, pollutants in the air can be removed by blowing generated by the portable fan, and as the portable fan is coupled to the air purifier, it is automatically charged and convenient to use. It is to provide a multipurpose blower.

The multipurpose blower of the present invention for solving the above problems is a multipurpose blower in which a hand fan module is detachably attached to an air purifier module, wherein the hand fan module generates an air flow by an electric motor and a rotating fan The hand fan module and the air purifier are located on the periphery of the blower and the first display unit located on one side of the blowing unit and displaying the operating state of the hand fan module on the upper surface, and located around the first display unit. and a gripping part having a first button part for controlling the module, wherein the air purifier module has a cylindrical filter part positioned below the blower to purify air, an upper part is opened to accommodate the filter part inside, A lower housing having a lower vent and a lower support portion formed by a plurality of longitudinal ribs provided on the side surface, a accommodating portion positioned between the hand fan module and the lower housing and accommodating the blower, the blower and the filter unit A second display unit for displaying the operating state and air pollution level of the air purifier module from the side of the upper vent located inside the receiving unit to correspond to the upper vent located inside the receiving unit, the holding unit positioned on one side of the receiving unit and corresponding to the holding unit, and the side of the holding unit and an upper housing positioned around the second display unit and having a second button unit for controlling the air purifier module by a pressing operation.

The multipurpose blower according to an embodiment of the present invention may be a multipurpose blower, characterized in that the gripper further includes a ring-shaped strap on one side.

A multipurpose blower according to an embodiment of the present invention, wherein the holding part has a first connection terminal on a lower surface, and the holding part has a second connection terminal magnetically coupled to the first connection terminal on an upper surface. It may be a multipurpose blower.

The multi-purpose blower according to an embodiment of the present invention, wherein the blower includes a lower guard rib that is curved to protrude downward, and the receiving part is formed in a curved surface to accommodate the lower guard rib. It may be a multipurpose blower.

The multipurpose blower according to an embodiment of the present invention may be a multipurpose blower, wherein the upper vent includes a ventilation blocking part supported by a plurality of support ribs radially disposed inside the mounting part. .

The multi-purpose blower according to an embodiment of the present invention may be a multi-purpose blower, wherein the upper housing further includes a light unit attached to a lower surface and accommodated in the lower housing.

In the multipurpose blower device according to an embodiment of the present invention, when a force is applied inwardly to the lower support part of the lower housing, the vertical flesh is bent inward, and the lower support part is fixed by moving in the inner direction of the lower housing. It may be a multi-purpose blower, characterized in that it becomes.

In the multipurpose blower according to an embodiment of the present invention, the lower surface of the gripper is formed as a curved surface protruding convexly downward, and the upper surface of the holding portion is formed as a curved surface concavely recessed downward to accommodate the gripper. It may be a multi-purpose blower, characterized in that.

The multi-purpose blower according to an embodiment of the present invention may be a multi-purpose blower, characterized in that the lower support portion further includes a rubber pad for preventing slippage at a lower portion thereof.

The multi-purpose blower device according to an embodiment of the present invention combines a portable fan with an air purifier to remove pollutants in the air by blowing generated by the portable fan, and is automatically charged as the portable fan is coupled to the air purifier. It provides an effect that the user can use conveniently.

1 is a perspective view of a multi-purpose blower according to an embodiment of the present invention.
2 is a view showing an example in which the hand fan module is separated from the air purifier module according to an embodiment of the present invention.
3 is a view showing an example in which a hand fan module according to an embodiment of the present invention is combined with an air purifier module.
4 is a view showing a blower and an upper blower according to an embodiment of the present invention.
5 is a view showing an example in which the first connection terminal located at the lower portion of the hand fan module is coupled to the second connection terminal located at the upper portion of the air purifier module according to an embodiment of the present invention.
6 is a view showing a lower housing according to an embodiment of the present invention.
7 is a view showing the movement of the lower support part of the lower housing in the inner direction of the lower housing by an external force according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that adding a detailed description of a technique or configuration already known in the field may make the gist of the present invention unclear, some of it will be omitted from the detailed description. In addition, the terms used in this specification are terms used to properly express embodiments of the present invention, which may vary according to a person or custom in the relevant field. Accordingly, definitions of these terms should be made based on the content throughout this specification.

The terminology used herein is for the purpose of referring to specific embodiments only, and is not intended to limit the invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of 'comprising' specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

Hereinafter, a multi-purpose blower 1 according to an embodiment of the present invention will be described with reference to the accompanying FIGS. 1 to 7 .

The multipurpose blower 1 of the present invention is a device in which a blowing function that allows a user to receive cool wind while carrying it and an air purification function that can remove contaminants in the air are combined. That is, when the weather is hot and you want to receive cool air, you can use a portable fan, and when the air is polluted, you can use it as an air purifier.

Hereinafter, each configuration of the multi-purpose blower 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7 .

1 to 4 , the multipurpose blower 1 includes a hand fan module 100 having a blowing function and an air purifier module 200 having an air cleaning function. The hand fan module 100 can be held in the user's hand for easy portability, and has a built-in battery to provide blowing from the outside. In addition, as shown in FIGS. 2 and 3 , it is detachably attached to the air purifier module 200 to provide blow to the inside of the air purifier module 200 , so that air is supplied to the filter built into the air purifier module 200 . to allow it to pass The air purifier module 200 can filter out polluted substances in the air through a filter, and provides power so that the battery of the hand fan module 100 can be charged when the hand fan module 100 is attached. In a state in which the hand fan module 100 and the air purifier module 200 are combined, the air purifier module 200 supplies power to the hand fan module 100 to charge the battery built into the hand fan module 100. features that are available.

Referring back to FIG. 1, the hand fan module 100 is located at one side of the blower 110 and the blower 110 that generate an air flow by an electric motor and a rotating fan 111, and a user can use the hand fan module ( 100) includes a gripper 120 to be gripped.

The blower 110 receives electricity from a battery built into the gripper 120 to drive the electric motor, and the rotating fan 111 rotates by the driving of the electric motor to provide blow to the user. there will be In order to protect the user from the rotation of the rotating fan 111, upper and lower portions of the blower 110 are provided with upper and lower protective ribs 112 and 113, respectively. The upper guard rib 112 can be separated from the blower path 110 by rotating it counterclockwise. When the upper protection rib 112 is separated from the blower 110 , it is possible to clean the inside of the rotating fan 110 and the blower 110 . As shown in FIG. 4 , the lower guard rib 113 may be curved to protrude in the lower direction.

The grip unit 120 is located on the upper surface of the first display unit 121 displaying the operating state of the hand fan module 100, and is located around the first display unit 121, and by pressing the hand fan module 100 and A first button unit 122 for controlling the air purifier module 200, a first connection terminal 123 located on the lower surface, and a ring-shaped strap 124 located on one side may be provided.

The side surface of the gripper 120 may have a semicircular shape so that the shape of the end portion corresponds to the blower 110 while extending to a flat surface along the outer circumferential surface of the blower 110 formed in a circle. A ring-shaped strap 124 is provided at the end so that the user can hold the hand fan module 100 and at the same time hang the strap 124 on the wrist to prevent the hand fan module 100 from being separated from the hand. The lower surface of the grip part 120 is formed as a gently curved surface convexly protruding downward and may be mounted to be accommodated in the holder 233 of the hand fan module 100 as will be described later.

The first display unit 121 is located on the upper surface of the holding unit 120 , and may display the operating states of the hand fan module 100 and the air purifier module 200 by means of indicators. For example, a state in which the indicator light is off means that the power is turned off, and a state in which the indicator is lit in a hollow circle means that the power is on and the battery of the hand fan module 100 is fully charged, and the indicator light A state lit in a solid circle may mean that the battery of the hand fan module 100 is not fully charged and is being charged.

The first button unit 122 may be positioned between the first display unit 121 and the blower 110 to control the hand fan module 100 and the air purifier module 200 by a pressing operation. For example, in a state in which the hand fan module 100 is separated from the air purifier module 200, a portable fan mode may be provided. When the first button unit 122 is pressed for more than a predetermined time, the power of the hand fan module 100 may be turned on or off. When the power is pressed once while the power is turned on, the blower 110 operates with a breeze, and after that, every time the button is pressed once, the blowing mode may be changed in the order of a breeze, a weak wind, a strong wind, and then a breeze again. In a state in which the hand fan module 100 is coupled to the air purifier module 200, an air purifier mode may be provided. When the first button unit 122 is pressed for a predetermined time or longer, the blower unit 110 may be operated or stopped to perform an air purification function. When the first button unit 122 is pressed once while the power is turned on, the blower 110 operates as a sleep wind to enter a sleep mode in which the rotational speed of the rotating fan 111 repeats a pattern of decreasing and increasing. can function When the first button unit 122 is pressed once in the sleep mode, it is linked with the fine dust sensor of the air purifier module 200 to adjust the rotation speed of the rotating fan 111 according to the good or bad air pollution. can function as When the first button unit 122 is pressed once again in the AUTO mode state, it can function as a clean mode in which the rotating fan 111 rotates at a constant speed, and when the first button unit 122 is pressed once again, sleep return to the mode.

The first connection terminal 123 may be located on the lower surface of the gripper 120 . The first connection terminal 123 includes a depression 125 formed to be depressed inwardly from the lower surface of the gripper 120 and a means 126 located in the center of the depression 125 and formed to protrude outward. may include Through this, the female terminal 238 of the second connection terminal 241, which will be described later, may be coupled to the male terminal 126 of the first connection terminal 123 to be inserted. In this way, when the first connection terminal 123 is inserted into the second connection terminal 241 and coupled, it is not easily separated even when an external force is applied, so that power can be supplied or a control signal can be exchanged while maintaining the coupling stably. In addition, the first connection terminal 123 and the second connection terminal 241 may be magnetically coupled. That is, since the male terminal 126 of the first connection terminal 123 and the female terminal 238 of the second connection terminal 241 are formed of permanent magnets, they can be coupled to each other by magnetic force. When magnetically coupled in this way, even if external force is applied, it is not easily separated. It has the effect of guiding it so that it is closely attached by pulling it. In addition, there is no need for a user to use a separate cable to charge the hand fan module 100 .

The air purifier module 200 is located on the upper part of the filter unit 210, which functions to purify air, the lower housing 220 accommodating the filter unit 210 inside, and the lower housing 220, so that the hand fan module ( 100) and may include an upper housing 230 coupled with. The air purifier module 200 passes the air generated by the hand fan module 100 through the filter unit 210 to filter the air. In addition, the air purifier module 200 supplies power to the hand fan module 100 when the hand fan module 100 is attached to charge the battery.

The filter unit 210 has a cylindrical shape in which a hole is formed in the center, and is accommodated inside the air purifier module 200 . That is, it is located under the upper housing 230 and located inside the lower housing 220 . Air generated by the blower 110 of the hand fan module 100 flows downward, passes through the center of the filter unit 210 and passes through the filter unit 210 from the inside to the outside. In this process, pollutants contained in the air are filtered, and the air passing through the filter unit 210 may be in a state in which the pollutants are removed. In this case, the filter unit 210 may be formed in a state in which the pre-filter, the HEPA filter, or the activated carbon filter is overlapped with each other. The pre-filter functions to filter pollutants with large particles in the air, the HEPA filter functions to filter pollutants with small particles, and the activated carbon filter adsorbs harmful gases or fine dust that HEPA filters cannot filter. Thus, the filtering function can be performed.

As shown in FIG. 6 , the lower housing 220 is connected to a lower vent 221 and a lower vent 221 that have an open top to accommodate the filter unit 210 inside, and allow air to flow to the outside. It may be provided with a lower support portion 223 formed to be in contact with the bottom surface. The lower vent 221 formed on the side surface of the lower housing 220 is provided with a plurality of vertical spokes 222 so that air can flow in and out due to the through holes between adjacent vertical spokes 222 . Accordingly, as described above, the filtered air passing through the filter unit 210 may exit to the outside through the lower vent 221 .

As shown in FIG. 6 , in the lower vent 221 , the portion surrounding the filter unit 210 has a through hole, but the portion surrounding the light unit 236 does not have a through hole and may be formed in a closed state. there is. The portion surrounding the light unit 236 is for light to be indirectly radiated through the lower vent 221 without being directly radiated to the outside. Accordingly, a portion surrounding the filter unit 210 of the lower vent 221 may be viewed as an area for air cleaning, and a portion surrounding the light unit 236 may be viewed as an area for lighting.

The vertical flesh 222 of the lower vent 221 may be formed in a reverse trapezoidal shape. Accordingly, the corresponding through hole may be formed in a trapezoidal shape.

The vertical flesh 222 of the lower vent 221 is straightened, but has elasticity and can be easily bent and stretched again. Therefore, when a certain force is applied from the outside, the vertical flesh 222 may be bent by the force. As shown in FIG. 7 , when a force is applied to the lower support 223 in the upper direction, that is, in the inward direction, the vertical flesh 222 is bent in the inward direction, and as a result, the lower support portion connected to the lower end of the vertical flesh 222 . 223 moves to the inside of the lower housing 220 . The lower housing 220 moved in this way can maintain a fixed shape even when the applied force is removed. Accordingly, since the overall volume of the lower housing 220 is reduced, the volume of the multi-purpose blower 1 is also reduced. The multi-purpose blower 1 having such a reduced volume can be easily accommodated and can be easily moved due to the reduced volume even during movement.

As shown in FIG. 7B , a rubber pad 224 for preventing slippage may be provided at the lower portion of the lower support part 223 . By providing the rubber pad 224 in the lower part in this way, even when an external force is applied, the lower housing 220 does not slip and can be fixed to the floor or the ground, thereby preventing damage.

The upper housing 230 includes a receiving part 231 for accommodating the blower 110 , an upper vent 232 corresponding to the filter part 210 , a holding part 233 on which the gripping part 120 is mounted, and an air purifier. The hand fan module 100 and the air purifier module 200 are positioned around the second display unit 234 and the second display unit 234 to display the operating state and air pollution level of the module 200, and press the hand fan module 100 and the air purifier module 200. A second button unit 235 to control and a light unit 236 attached to the lower surface of the upper housing 230 and accommodated in the lower housing 220 may be provided. The upper housing 230 is positioned between the hand fan module 100 and the lower housing 220 . Accordingly, the air generated by the blower 110 may pass through the upper housing 230 to move to the filter unit 210 located inside the lower housing 220 .

The accommodating part 231 accommodates the blower 110 of the hand fan module 100 . That is, the accommodating part 231 may also be formed to be recessed downward to accommodate the blower 110 which is formed to protrude downward. As described above, the lower protection rib 113 of the blower 110 may be formed to be curved to protrude in the lower direction. Accordingly, the receiving portion 231 may be formed in a curved surface to correspond to the shape of the lower protection rib 113 .

The holding unit 233 is located on one side of the receiving unit 231 , and the holding unit 120 of the hand fan module 100 is mounted. That is, when the hand fan module 100 is coupled to the air purifier module 200 , the lower surface of the holding unit 120 may be mounted on the upper surface of the holding unit 233 . Accordingly, as shown in FIG. 5 , the overall shape of the holding unit 233 has a shape corresponding to that of the holding unit 120 . As described above, since the lower surface of the gripper 120 is formed as a gentle curved surface that protrudes convexly downward, the upper surface of the holder 233 may be formed as a curved surface that is concavely recessed downward to accommodate it. there is. Through such a coupling relationship, even if an external force is applied while the hand fan module 100 is coupled to the air purifier module 200, it is not easily separated, so that the coupling can be stably maintained.

The mounting portion 233 may include a second connection terminal magnetically coupled to the first connection terminal 123 on the upper surface. The second connection terminal 241 may include a protrusion 237 formed to protrude outward from the upper surface of the holder 233 and a female terminal 238 positioned at the center of the protrusion 237 and recessed inward. can The recessed part 125 of the first connection terminal 123 corresponds to the protrusion 237 of the second connection terminal 241 , and the means 126 of the first connection terminal 123 is the second connection terminal 241 . ) corresponds to the female terminal 238 of the. The coupling relationship between the first connection terminal 123 and the second connection terminal 241 is as described above.

The light unit 236 may be located below the mounting unit 233 . Accordingly, the light unit 236 may be positioned to face the filter unit 210 and accommodated in the lower housing 220 . When the light unit 236 is turned on, it may provide illumination at night, and may be used as a sleeping light according to brightness and color. The light unit 236 may be controlled by the second button unit 235, and a detailed description will be provided later.

The upper vent 232 is located inside the receiving part 231, and penetrates from the top to the bottom to allow air to pass therethrough. The upper vent 232 may be formed in a circular penetrating shape so that the air generated by the blower 110 can pass through to reach the filter unit 210 . The upper vent 232 includes a plurality of support ribs 239 radially disposed on the inside of the mounting part 233 and a ventilation blocking part 240 positioned inside the upper vent 232 and supported by the supporting ribs 239 . ) can be provided. As shown in FIGS. 4 and 5 , the ventilation blocking unit 240 may be formed in a circular shape to correspond to the central portion of the blowing unit 110 being formed in a circular shape. The ventilation blocking unit 240 prevents the blowing generated by the blowing unit 110 from flowing into the center of the upper vent 232 . This corresponds to that the central portion of the blower 110 is blocked, and guides the air generated from the blower 110 to go straight so that the contaminated air passes through the filter efficiently.

A shock absorbing pad 242 is provided on the upper portion of the ventilation blocking unit 240 or the receiving unit 231 to prevent shock and noise caused by contact with the lower protective rib 113 or vibration of the hand fan module 100 can be When the hand fan module 100 is combined with the air purifier module 200 , the ventilation blocking part 240 and the receiving part 231 come into contact with the lower protective rib 113 of the hand fan module 100 , so that they come into contact with each other. In the process, shock or noise may occur. In addition, when the hand fan module 100 is coupled to the air purifier module 200 and operates in the air purifying mode, noise and vibration may be generated by the electric motor and the rotating fan. The shock-absorbing pad 242 may be formed of a material having elasticity and restoring force to reduce such noise, shock, or vibration.

The second display unit 234 may display the operating state and air pollution level of the air purifier module 200 from the side of the mounting unit 233 . The second display unit 234 may include three indicator lights. The operating state and air pollution level of the air purifier module 200 can be displayed separately through the three indicator lights. For example, a state in which all indicators are turned off means a state in which the power is turned off, and a state in which one indicator is lit with blue light means that the power is on and the speed of the rotating fan 111 periodically changes according to time. It can mean that it works in mode. A state in which two indicators are lit with blue light means an AUTO mode in which the rotation speed of the rotating fan 111 is adjusted according to good or bad air pollution, and a state in which three blue lights are lit means the rotating fan ( 111) rotates and may mean the clean mode indicating that the current air pollution level is at a good level. A state in which three indicators are lit in yellow light may mean that the current air pollution level is at a bad level, and a state in which three indicators are lit in red light may mean that the current air pollution level is at a serious level.

The second button unit 235 may be positioned around the second display unit 234 to control the air purifier module 200 by a pressing operation. For example, when the second button unit 235 is pressed for a predetermined time or longer, the power of the air purifier module 200 may be turned on or off. If the power is pressed once while the power is on, the light unit 236 is turned on, and if the second button unit 235 is pressed again, the light unit 236 may be turned off."

The technical features disclosed in each embodiment of the present invention are not limited only to the embodiment, and unless they are mutually incompatible, the technical features disclosed in each embodiment may be combined and applied to different embodiments.

In the above, embodiments of the multi-purpose blower of the present invention have been described. The present invention is not limited to the above-described embodiments and the accompanying drawings, and various modifications and variations will be possible from the point of view of those of ordinary skill in the art to which the present invention pertains. Accordingly, the scope of the present invention should be defined not only by the claims of the present specification, but also by those claims and their equivalents.

1: Multipurpose blower
100: hand fan module
110: blower
111: rotating fan
112: upper guard
113: lower guard
120: grip part
121: first display unit
122: first button unit
123: first connection terminal
124: strap
125: depression
126: Sudanja
200: air purifier module
210: filter unit
220: lower housing
221: lower vent
222: length
223: lower support
224: rubber pad
230: upper housing
231: receptacle
232: upper vent
233: cradle
234: second display unit
235: second button unit
236: light
237: protrusion
238: female
239: Jijisal
240: ventilation block
241: second connection terminal
242: shock absorption pad

Claims (10)

In the multipurpose blower device in which a hand fan module is detachably attached to an air purifier module,
The hand fan module includes: a blower for generating an air flow by an electric motor and a rotating fan; and
A first display unit located on one side of the blower and displaying the operating state of the hand fan module on the upper surface, and located around the first display unit to control the hand fan module and the air purifier module by a pressing operation Includes a grip portion having a first button portion,
The air purifier module may include: a cylindrical filter unit positioned under the blower to purify air;
a lower housing having an open upper part to accommodate the filter part inside and having a lower vent and a lower support part formed by a plurality of vertical flesh provided on the side surface;
Located between the hand fan module and the lower housing, the receiving part for accommodating the blower, the upper vent positioned inside the receiving part to correspond to the blower and the filter part, and the gripping part located at one side of the receiving part a second display unit for displaying the operating state and air pollution level of the air purifier module from the side of the mounting unit corresponding to 2 Multipurpose blower including an upper housing having a button part. According to claim 1,
The holding part is a multipurpose blower, characterized in that it further comprises a ring-shaped strap on one side. According to claim 1,
The holding part is provided with a first connection terminal on the lower surface,
The mounting portion is a multipurpose blower having a second connection terminal coupled to the first connection terminal and magnetic force on an upper surface. According to claim 1,
The blower includes a lower guard rib that is curved to protrude in the lower direction,
The accommodating part is a multipurpose blower, characterized in that it is formed in a curved surface to accommodate the lower protective rib. According to claim 1,
The upper vent is a multipurpose blower, characterized in that it has a ventilation blocking portion supported by a plurality of support ribs disposed radially on the inside of the mounting portion. According to claim 1,
The upper housing is a multipurpose blower, characterized in that it is attached to the lower surface further comprising a light unit accommodated in the lower housing. According to claim 1,
The lower housing is a multipurpose blower, characterized in that when a force is applied inwardly to the lower support part, the vertical flesh is bent inwardly, and the lower support part is fixed by moving in the inner direction of the lower housing. According to claim 1,
The lower surface of the holding part is formed as a curved surface convexly protruding downward,
The upper surface of the holding part is formed as a curved surface concavely recessed downward to accommodate the holding part. According to claim 1,
The lower surface of the holding part is formed as a curved surface convexly protruding downward,
The upper surface of the holding part is formed as a curved surface concavely recessed downward to accommodate the holding part. According to claim 1,
The lower support unit is a multipurpose blower, characterized in that it further comprises a rubber pad for preventing slip in the lower portion.

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