KR102063232B1 - Vacuum using hoverboard - Google Patents

Abstract

A cleaner using a hoverboard is disclosed. The cleaner using a hoverboard includes: a non-powered cleaner; a steering system including a moving plate having a wheel on the bottom part, a handle including a vertical bar extending vertically from the upper surface of the moving plate and a horizontal handle connected to the upper end of the vertical bar, and a connection bar extending from the upper surface or the side surface of the main body of the non-powered cleaner to the vertical bar and connecting the vertical bar and the non-powered cleaner; a hoverboard connection bracket having one end connected to the moving plate so as to be arranged perpendicular to the longitudinal direction of the movable plate; and a hoverboard connected to the other end of the hoverboard connection bracket and driven to move the non-powered cleaner.

Description

Vacuum cleaner using hover board {VACUUM USING HOVERBOARD}

The present invention relates to a cleaner using a hoverboard, and more particularly to a cleaner that can move through the hoverboard.

Through a Korean Patent No. 10-1333102 "powerless cleaner" is disclosed.

As shown in FIG. 1, the non-powered cleaner includes a cleaner body 20 having a dust inlet 21 open at a front surface thereof; Located in front of the dust inlet 21 is rotatably coupled to the cleaner body 20, the roll is provided to sweep the dust into the dust inlet 21 by rotating when the cleaner body 20 is moved forward Brush 30; And are respectively positioned at both sides of the dust inlet 21 so as to be horizontally rotated to the bottom of the cleaner body 20, and to both edges of the roll brush 30 in conjunction with the rotational operation of the roll brush 30. Rotation brush 40 is provided to sweep the dust out into the dust inlet 21, the cleaner body 20 is formed with a support frame (20A) extending integrally to the rear, the support frame 20A is characterized in that it comprises an adhesive roller 50 rotatably provided to adhere and remove the fine dust remaining on the bottom.

Since the roll brush 30 and the rotation brush 40 are rotated by the user by directly moving the non-powered cleaner, such a non-powered motor has always been inconvenient to directly move the non-powered cleaner.

Accordingly, an object of the present invention is to provide a cleaner using a hover board to easily move a non-powered cleaner.

Cleaner using a hover board according to an embodiment of the present invention is a non-powered cleaner; A moving plate having wheels at a bottom portion thereof, a handle including a vertical bar extending vertically from an upper surface of the moving plate and a horizontal handle connected to an upper end of the vertical bar, and a top surface or a side surface of the main body of the non-powered cleaner; A steering device extending in a vertical bar direction and including a connection bar connecting the vertical bar and the non-powered cleaner; A hover board connection bracket having one end connected to the movable plate so as to be perpendicular to the longitudinal direction of the movable plate; And a hover board connected to the other end of the hover board connection bracket and driven to move the non-powered cleaner.

Cleaner using a hover board according to another embodiment of the present invention is connected to the hover board connecting brackets extending to be perpendicular to the longitudinal direction of the hover board connecting brackets and extends vertically downward from the end of the extension portion A brake connecting bracket including a first hinge and disposed in close proximity to the hoverboard; A second hinge portion rotatably connected to the first hinge portion, a first plate portion extending from the second hinge portion toward the non-powered cleaner, and extending from the second hinge portion downwardly from the second hinge portion; A second weight portion, a first brake pad fixed to a bottom end of the first plate portion, and a first weight fixed to an end portion of the second plate portion and having a weight greater than the weight of the first brake pad. Brake for preventing movement of the cleaner; A vertical plate portion disposed in front of the main body portion, a weight supporting plate portion extending vertically from the lower end of the vertical plate portion and extending to the position of the first weight to support the first weight at ordinary times and the vertical A weight support bracket which protrudes from the upper end of the plate part in an upper surface direction and includes an upper plate part spaced apart from the upper surface of the main body part by a predetermined distance to face the upper surface part; A bracket guide member provided in front of the main body part to surround the vertical plate part and accommodating a partial length of the vertical plate part inside; A piston rod disposed between the upper surface of the main body portion and the upper plate portion, the cylinder portion fixed to the upper surface of the main body portion, and a piston rod extending from the cylinder portion and having an end portion supporting the upper plate portion, wherein the piston rod is raised and A lift member which descends and raises the weight support bracket; A fluid supply member supplying pneumatic or hydraulic pressure to the cylinder portion; And when the fluid supply member is electrically connected to the fluid supply member, the fluid supply member supplies fluid to the cylinder part so that the piston rod rises. When the fluid supply member is off, the fluid supply member is transferred to the cylinder part. And a brake switch to release the fluid supply.

In one embodiment, the brake switch may be a foot switch.

According to the cleaner using the hover board according to an embodiment of the present invention, by driving the hover board can easily move the non-powered vacuum cleaner through the hover board, accordingly, the user without the inconvenience of moving the non-powered vacuum cleaner directly to the manpower It is possible to move quickly to the driving force of the hover board is possible to quickly clean, there is an advantage that can provide convenience in the use of a non-powered cleaner.

1 is a view for explaining the configuration of a conventional non-powered cleaner.
Figure 2 is an exploded perspective view for explaining the configuration of a cleaner using a hover board according to an embodiment of the present invention.
FIG. 3 is a perspective view illustrating a hover board connected to a non-powered cleaner through the hover board connection bracket and the steering device illustrated in FIG. 2.
4 is a partially enlarged view for explaining the configuration of a cleaner using a hover board according to another embodiment of the present invention.
5 is a plan view of FIG. 4.
6 is a partially enlarged view illustrating a state in which the brake for preventing movement of the cleaner illustrated in FIG. 4 is operated to be in close contact with the ground.

Hereinafter, a cleaner using a hover board according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements. In the accompanying drawings, the dimensions of the structures are shown in an enlarged scale than actual for clarity of the invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Figure 2 is an exploded perspective view for explaining the configuration of the cleaner using the hover board according to an embodiment of the present invention, Figure 3 is a hover board connected to a non-powered cleaner through the hover board connecting bracket and steering device shown in FIG. It is a perspective view showing a state.

2 and 3, the cleaner using the hover board according to an embodiment of the present invention includes a non-powered cleaner 110, steering device 120, hover board connection bracket 130 and hover board 140 can do.

The non-powered cleaner 110 is coupled to the main body 111 to rotate in front of the inlet, the inlet is formed so that the front of the inlet, and rotates when the main body 111 advances to collect the garbage The main brush, the side brush 112, the main body 111 is rotated in conjunction with the main brush is rotated and disposed on both sides of the rotation axis of the main brush so that the trash falling to both edges of the main brush is collected into the inlet opening Located in the rear of the inlet, the front is open and the outlet is formed in the rear may include a container for storing the waste collected by the main brush and side brush 112.

Since the non-powered cleaner 110 is the same as or similar to the non-powered cleaner 10 described with reference to FIG. 1 in the related art, a detailed description thereof will be omitted.

The steering apparatus 120 may include a moving plate 121, a handle 122, and a connection bar 123.

The moving plate 121 may have a rectangular plate shape, and the wheel 121a may be provided on the bottom surface thereof. The moving plate 121 may be disposed behind the main body 111.

The handle 122 may include a vertical bar 1221 extending vertically from an upper surface of the movable plate 121 and a horizontal handle 1222 connected to an upper end of the vertical bar 1221.

The connection bar 123 may extend diagonally from the top or side surface of the main body 111 of the non-powered cleaner 110 in the direction of the vertical bar 1221 to connect the vertical bar 1221 and the non-powered cleaner 110.

One end of the hover board connection bracket 130 may be connected to the movable plate 121 so as to be perpendicular to the longitudinal direction of the movable plate 121. For example, the hover board connection bracket 130 may be rotatably connected to the moving plate 121 through the shaft. The hover board connection bracket 130 may have a rectangular planar shape.

The hover board 140 includes a main body 141, a footrest 142 provided on the left and right sides of an upper surface of the main body 141, and a driving wheel 143 disposed on both lower sides of the main body 141. can do. The hover board 140 may be connected to the other end of the hover board connection bracket 130. At this time, the hover board connection bracket 130 may be fixed to the bottom surface of the body portion 141 between the respective footrest portion 142. For example, the hover board connection bracket 130 may be fixed to the bottom surface of the body portion 141 through a screw.

The cleaner using the hover board according to an embodiment of the present invention may be moved through the hover board 140.

That is, when the user climbs on the scaffolding portion 142 of the hover board 140, and grabs the handle 1222 of the steering device 120 to drive the hover board 140, the hover board 140 is driven to hover. According to the forward, backward, leftward movement and rightward movement of the board 140, the movement and direction of the non-powered cleaner 110 may be changed.

In this case, the non-powered cleaner 110 may be diverted by the steering apparatus 120. That is, when the handle 1222 of the steering device 120 is turned in the left or right direction, the movable plate 121 is rotatably connected to the hoverboard connection bracket 130 and rotates according to the user's operation. Accordingly, the direction of the non-powered cleaner 110 may be switched.

Therefore, when the cleaner using the hover board according to an embodiment of the present invention is used, the non-powered cleaner 110 may be easily moved through the hover board 140 by driving the hover board 140. Quick cleaning is possible while easily moving the non-powered cleaner 110 by the driving force of the hover board 140 without the inconvenience of moving the non-powered cleaner 110 directly, and can provide convenience in using the non-powered cleaner 110. There is an advantage.

Hereinafter, a cleaner using a hoverboard according to another embodiment of the present invention will be described with reference to FIGS. 4 to 6 based on differences from cleaners using a hoverboard according to an embodiment of the present invention. 4 is a partially enlarged view for explaining the configuration of a cleaner using a hover board according to another embodiment of the present invention, Figure 5 is a plan view of Figure 4, Figure 6 is a cleaner for preventing movement of the brake shown in Figure 4 Partial enlarged view showing a state of being operated in close contact with the.

4 and 5, the cleaner using the hover board according to another embodiment of the present invention is a brake connection bracket 210, a cleaner movement preventing brake 220, weight support bracket 230, the bracket guide member ( 240, the lift member 250, the fluid supply member 260 and the brake switch 270, except that it is the same as the cleaner using a hover board according to an embodiment of the present invention, so below the brake connection bracket Reference numeral 210, a cleaner movement preventing brake 220, a weight support bracket 230, a bracket guide member 240, a lift member 250, a fluid supply member 260, and a brake switch 270 will be described. .

The brake connection bracket 210 may connect the cleaner movement preventing brake 220 to the hover board connection bracket 130. The brake connecting bracket 210 may include an extension part 211 and a first hinge part 212.

The extension part 211 may be connected to the hover board connection bracket 130 but may be connected perpendicularly to the long axis direction of the hover board connection bracket 130.

The first hinge portion 212 may extend vertically downward from the end of the extension portion 211.

The brake connection bracket 210 may be fixed so as not to rotate from the hover board connection bracket 130.

The cleaner movement preventing brake 220 may include a second hinge portion 221, a first plate portion 222, a first brake pad 224, and a first weight 225.

The second hinge part 221 may be rotatably connected to the first hinge part 212.

The first plate part 222 may extend from the second hinge part 221 in the direction of the non-powered cleaner 110.

The second plate portion 223 may extend from the second hinge portion 221 in the direction below the second hinge portion 221.

The first brake pad 224 may be fixed to the bottom of the end of the first plate portion 222. The first brake pad 224 may be made of a rubber material having elasticity so that the frictional force may be increased when it is in close contact with the ground.

The first weight 225 may be fixed to the end of the second plate portion 223. By having a weight greater than the weight of the first brake pad 224, the cleaner movement preventing brake 220 is normally carried in the direction of the second plate portion 223, whereby the cleaner movement preventing brake 220 is normally The first plate part 222 and the first brake pad 224 may be rotated at an angle that can be spaced apart from the ground.

Here, the first plate portion 222 and the second plate portion 223 may be arranged to form an obtuse angle with respect to the second hinge portion 221. That is, when the first plate 222 is lowered toward the ground and the first brake pad 224 is in close contact with the ground, the surface of the first plate 222 contacting the ground of the first brake pad 224 may be at an angle with the ground. It may extend from the second hinge portion 221.

The weight support bracket 230 may include a vertical plate portion 231, a weight support plate portion 232, and an upper plate portion 233.

The vertical plate part 231 may be connected to the front side of the main body 141, and may be disposed perpendicularly to the upper surface of the main body 141.

The weight supporting plate portion 232 may extend at a right angle or an obtuse angle with the vertical plate portion 231 to protrude forward from the lower end of the vertical plate portion 231, the extended length of the first weight (225) ) To support the first weight 225 in a state in which the cleaner movement preventing brake 220 is rotated in a normal state, that is, the first plate portion 222 and the first brake pad 224 are spaced apart from the ground. can do.

The upper plate part 233 may protrude from the upper end of the vertical plate part 231 in the upper surface direction of the main body 141 to be spaced apart from the upper surface of the main body 141 by a predetermined distance.

The bracket guide member 240 may be provided at the front of the main body 141 to surround the vertical plate part 231 to accommodate a part of the length of the vertical plate part 231. For example, the bracket guide member 240 may have a cross-sectional shape having a c-shape, and in this case, some length of the vertical plate part 231 may be accommodated inside the c-shape.

The lift member 250 is provided between the upper surface of the body portion 141 and the upper plate portion 233 and extends from the cylinder portion 251 and the cylinder portion 251 fixed to the upper surface of the body portion 141. And the end may include a piston rod 252 for supporting the upper plate portion 233, the piston rod 252 may be raised and lowered to raise the weight support bracket 230.

The fluid supply member 260 may be disposed adjacent to the lift member 250 on the upper surface of the body portion 141. The fluid supply member 260 may supply pneumatic or hydraulic pressure to the cylinder part 251. For example, pneumatic pressure can be supplied.

The brake switch 270 may be electrically connected to the fluid supply member 260 to turn on / off a fluid supply operation of the fluid supply member 260. When on, the fluid supply member 260 supplies fluid to the cylinder part 251 so that the piston rod 252 rises, and when off, the fluid supply member 260 supplies fluid to the cylinder part 251. Can be released. The brake switch 270 may be a foot switch provided on an upper surface of the main body 141 and easily pressed by a user's foot.

The cleaner using the hover board according to another embodiment of the present invention may prevent the cleaner 110 from being pushed or moved when the hover board 140 stops running.

That is, in the case of normal and running, the cleaner movement preventing brake 220 may be spaced apart from the ground by the first plate portion 222 and the first brake pad 224 by the weight of the first weight 225 as described above. Is rotated at an angle, and when the user stops running the hover board 140, the user presses the brake switch 270 provided on the upper surface of the main body 141 of the hover board 140 with the brake switch 270. ) Is turned on, whereby the fluid supply member 260 supplies fluid, for example, pneumatic pressure, to the cylinder portion 251 of the lift member 250.

When the pneumatic pressure is supplied to the cylinder portion 251, the piston rod 252 is raised to raise the upper plate portion 233 of the weight support bracket 230, wherein the weight support bracket 230 is a bracket guide member 240 Guide is raised along the longitudinal direction of the), as the weight support plate 232 is raised as the first weight 225 is raised, the cleaner movement preventing brake 220 is centered on the second hinge portion 221 The first brake pad 224 provided on the bottom of the first plate portion 222 is in close contact with the ground as the first plate portion 222 is lowered toward the ground, as shown in FIG. Movement or pushing of the movable plate 121 of the non-powered cleaner 110 and the steering apparatus 120 may be prevented.

On the other hand, when the user wants to release the stop state of the non-powered cleaner 110 by the cleaner movement preventing brake 220, the user boards the hover board 140 and presses the brake switch 270 is turned off by the fluid supply member 260 Pneumatic pressure supplied to the cylinder portion 251 is released through, the piston rod 252 is lowered, the cleaner movement preventing brake 220 is the second hinge portion 221 by the weight of the first weight (225). The first brake pad 224 is spaced apart from the ground by descending to its own weight, and thus the non-powered cleaner 110 may be driven again.

Using a cleaner using a hover board according to another embodiment of the present invention, so that the user can easily be pushed or moved of the non-powered cleaner 110 simply by operating the brake switch 270 on the hover board 140. It can be set, when getting off the hover board 140 or when boarding the hover board 140, the hover board 140, the moving plate 121 and the non-powered cleaner 110 is generated by the user hover board ( There is an advantage that it is possible to prevent a safety accident, such as difficult to board or fall from the hover board (140).

On the other hand, the anti-corrosion coating layer may be applied to the surface of the hover board connection bracket 130 and the moving plate 121 of the cleaner using the hover board according to the embodiments of the present invention to prevent corrosion of the metal surface. . The coating material of this anti-corrosion coating layer is 20% by weight of benzimidazole, 30% by weight of propylene glycol methyl ether, 15% by weight of hafnium, 10% by weight of molybdenum emulsion (MoS2), 15% by weight of aluminum oxide, bisphenol F diglyci Consists of 10% by weight of diether ether, the coating thickness may be formed to 8㎛.

Benzimidazole, propylene glycol methyl ether and bisphenol F diglycidyl ether serve to prevent corrosion and discoloration.

Hafnium is a corrosion-resistant transition metal element that serves to have excellent waterproofness and corrosion resistance.

Molybdenum emulsion plays a role of imparting slidability and lubricity to the surface of the coating film.

Aluminum oxide is added for the purpose of fire resistance, chemical stability, and the like.

The reason for numerically limiting the ratio and the coating thickness of the constituents as described above was analyzed by the present inventors through the test results while repeatedly failing several times, showing the optimum anti-corrosion effect at the ratio.

On the other hand, the outer surface of the hover board 140 of the cleaner using the hover board according to the embodiments of the present invention is coated with an anti-fouling coating layer made of an anti-fouling coating composition so as to effectively prevent the attachment and removal of contaminants. Can be.

The anti-fouling coating composition contains cocamidopropyl betaine and ampho glycinate in a 1: 0.01 to 1: 2 molar ratio, and the total content of cocamidopropyl betaine and ampho glycinate is 1 to 1 with respect to the total aqueous solution. 10% by weight.

The cocamidopropyl betaine and ampo glycinate is preferably 1: 0.01 to 1: 2 as the molar ratio. When the molar ratio is out of the above range, the applicability of the hoverboard 140 may be degraded or moisture absorption of the surface after application may be There is a problem that the coating film is removed to increase.

The cocamidopropyl betaine and ampo glycinate is preferably 1 to 10% by weight of the total composition aqueous solution, if less than 1% by weight has a problem that the applicability of the hover board 140 is lowered, more than 10% by weight If it is, crystal precipitation is likely to occur due to an increase in the coating film thickness.

On the other hand, it is preferable to apply | coat by the spray method as a method of apply | coating this antifouling coating composition to the hover board 140. FIG. In addition, the final coating film thickness of the hover board 140 is preferably 550 ~ 2000Å, more preferably 1100 ~ 1900Å. If the thickness of the coating film is less than 550 mmW, there is a problem of deterioration in the case of high temperature heat treatment, and if the thickness of the coating film is more than 2000 mm, crystal precipitation of the coating surface is easily generated.

In addition, the present antifouling coating composition may be prepared by adding 0.1 mol of cocamidopropyl betaine and 0.05 mol of ampo glycinate to 1000 ml of distilled water, followed by stirring.

On the other hand, the first brake pad 224 of the cleaner using the hover board according to the embodiments of the present invention may be made of a rubber material, the raw material content ratio of the first brake pad 224 is 60% by weight of rubber, cara 33 to 36% by weight of bone black, 2 to 5% by weight of antioxidant, and 1 to 3% by weight of sulfur as an accelerator are mixed.

Carbon black is added to increase the wear resistance, but if the content is less than 33% by weight, the elasticity and wear resistance is reduced, when the content exceeds 36% by weight, the rubber content of the main component is relatively small, there is a fear that the elastic force is lowered , 33 to 36% by weight.

Antioxidants add 2-5% by weight of 3C (N-PHENYL-N'-ISOPROPYL-P-PHENYLENEDIAMINE) or RD (POLYMERIZED 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINE) If it is less than the weight%, the product is easy to oxidize, and if it is added too much, if it exceeds 5 weight%, the rubber content of the main component is relatively small, and the elastic force may be reduced. ~ 5% by weight is appropriate.

Sulfur, an accelerator, is mixed with 1-3 wt%. Less than 1% by weight is a slight vulcanization effect in the heating step during molding, so 1% by weight or more is added. If it exceeds 3% by weight, the content of rubber, which is a main component, is relatively low, so that the elastic force may drop, and 1 to 3% by weight is appropriate.

Therefore, since the present invention is reinforced with synthetic rubber having elasticity in various directions, the elasticity, toughness, and rigidity of the first brake pad 224 is increased, thereby improving durability, and thus, the life of the first brake pad 224 is increased. .

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention should not be limited to the embodiments set forth herein but should be construed in the broadest scope consistent with the principles and novel features set forth herein.

110: non-powered cleaner 120: steering device
130: hover board connection bracket 140: hover board

Claims (3)

Non-powered cleaner 110;
A moving plate 121 having a wheel 121a at a bottom portion thereof, a vertical bar 1221 extending vertically from an upper surface of the moving plate 121, and a horizontal handle 1222 connected to an upper end of the vertical bar 1221. A handle 122 including an upper surface of the handle 122, and an upper surface or a side surface of the main body 111 of the non-powered cleaner 110, extending in the direction of the vertical bar 1221 to the vertical bar 1221 and the non-powered cleaner 110. A steering device 120 including a connection bar 123 for connecting;
A hover board connection bracket 130 having one end connected to the movable plate 121 so as to be perpendicular to the longitudinal direction of the movable plate 121; And
A hover board (140) connected to the other end of the hover board connection bracket (130) and driven to move the non-powered cleaner (110);
An extension part 211 connected to the hover board connection bracket 130 and extending vertically in the longitudinal direction of the hover board connection bracket 130 and extending vertically downward from an end of the extension part 211. A brake connection bracket (210) including a hinge portion (212) and disposed in close proximity to the hover board (140);
A second hinge portion 221 rotatably connected to the first hinge portion 212, a first plate portion 222 extending from the second hinge portion 221 in the direction of the non-powered cleaner 110, and The second plate portion 223 extending downward from the second hinge portion 221 to the lower side of the second hinge portion 221, and the first brake pad 224 fixed to the bottom surface of the end portion of the first plate portion 222. A cleaner for preventing movement of the cleaner 220 including a first weight 225 fixed to an end of the second plate part 223 and having a weight greater than the weight of the first brake pad 224;
The vertical plate portion 231 disposed in front of the body portion 141 of the hover board 140, extends to protrude forward from the lower end of the vertical plate portion 231 and the position of the first weight 225 Extends to the upper side of the weight supporting plate portion 232 and the vertical plate portion 231 to support the first weight 225 in the usual direction toward the upper surface of the main body portion 141 is the main body portion ( A weight support bracket 230 including an upper plate portion 233 disposed to face the upper surface of the upper surface 141 at a predetermined distance;
A bracket guide member 240 provided in front of the main body part 141 to surround the vertical plate part 231 to receive a part of the length of the vertical plate part 231 inward;
Is provided between the upper surface of the main body portion 141 and the upper plate portion 233, extending from the cylinder portion 251 and the cylinder portion 251 fixed to the upper surface of the main body portion 141 and the end is A lift member (250) including a piston rod (252) for supporting the upper plate portion (233), the piston rod (252) being raised and lowered to raise the weight support bracket (230);
A fluid supply member 260 for supplying pneumatic or hydraulic pressure to the cylinder portion 251; And
When electrically connected to the fluid supply member 260 (ON), the fluid supply member 260 to supply the fluid to the cylinder portion 251 so that the piston rod 252 is raised, OFF (OFF) When the fluid supply member 260 is further characterized in that it further comprises a brake switch 270 to release the fluid supply to the cylinder portion 251,
Hoverboard cleaner. delete The method of claim 1,
The brake switch 270 is characterized in that the foot switch,
Hoverboard cleaner.

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