Suction device of dust collector

[0027] The inhalation device of the vacuum cleaner of the present invention will be described in detail below with reference to the drawings and embodiments. In the process of describing the embodiments of the present invention, the same structure as the prior art uses the same name and symbol.

[0028] As shown in Figs. 1-3, the automatic vacuum cleaner 100 includes a vacuum cleaner body 110 that forms an appearance, an air suction assembly 120 located inside the vacuum cleaner body 110, a suction device 130 that sucks dust on the ground driven by the air suction assembly 120, and a gathering suction device 130 Dust collecting device 140 that sucks foreign substances in the air.

[0029] The vacuum cleaner body 110 of the automatic cleaner 100 has a cylindrical shape having a height smaller than a diameter, that is, a flat cylindrical shape. The vacuum cleaner body 110 is provided with an air suction assembly 120, a suction device 130 and a dust collection device 140 communicating with the suction device 130.

[0030] A sensor (not shown) that senses the distance between the wall and obstacles in the room and a shock absorber (not shown) that acts as a buffer in the event of a conflict are provided on the outer peripheral surface of the vacuum cleaner body 110. The lower side portions are respectively provided with driving wheels 150 and 160 on the left and right sides of the automatic cleaner 100 moving.

[0031] The left and right driving wheels 150 and 160 are respectively rotated by the left wheel motor 151 and the right wheel motor 161 controlled by the control unit 180. Therefore, according to the left wheel motor 151 and the right wheel motor 161, the automatic cleaner 100 automatically switches directions to clean the room.

[0032] At least one auxiliary wheel 170 is provided on the bottom surface of the vacuum cleaner body 110 to minimize the friction between the automatic vacuum cleaner and the ground while guiding the automatic vacuum cleaner 100 to move.

[0033] The internal structure of the automatic vacuum cleaner 100 is described in detail as follows: in front of the vacuum cleaner body 110, there is a control unit 180 that is provided with various electronic components to control and drive the automatic vacuum cleaner 100, and behind the control unit 180 is provided to supply power to the air suction unit 120, etc. The battery 190.

[0034] An air suction unit 120 that generates air suction force is provided behind the battery 190. The dust collecting device 140 is installed at the dust collecting device installation part 140a) behind the air suction unit 120 and can be detached and detached backward.

[0035] An inhalation device 130 is provided on the underside of the dust collecting device 140 to inhale foreign substances on the ground together with air. The air suction assembly 120 includes a motor (not shown) that is electrically connected to the battery 190 and is installed obliquely between the battery 190 and the dust collector 140, and a fan (not shown) connected to the rotating shaft of the motor for forced air flow.

[0036] The suction nozzle 130 is exposed to the lower side of the cleaner body 110 through an opening (not shown) on the bottom surface of the cleaner body 110 and is in contact with the indoor floor.

[0037] The inhalation device 130 of the present invention will be described in detail below with reference to the accompanying drawings:

[0038] As shown in Figures 4-6, the inhalation device (130) includes a bottom 131 with a suction port 131a that is set to suck foreign substances. The suction port 131a rotates to agitate dust accumulated on the indoor floor or sticking to the ground. Material agitator 132. The bottom 131 of the suction device is formed integrally with the cleaner body 110, and formed integrally with the bottom surface of the cleaner body.

[0039] The bottom 131 of the inhalation device may form the appearance of the inhalation device, that is, the bottom surface of the mouth shell 133. An exhaust port 134 communicating with the dust collecting device 140 is provided on the upper side of the nozzle housing 133.

[0040] The nozzle housing 133 is located at the lower part of the cleaner body 110, and more specifically, is located at the lower side of the dust collector 140 through an opening (not shown) on the bottom surface of the cleaner body 110 to be exposed to the lower side of the cleaner body 110, preferably at the bottom The bottom 131 is provided with a separate auxiliary wheel 131b.

[0041] The suction port 131a uses the air suction force generated by the air suction assembly 120 to suck foreign matter on the ground, and the exhaust port 134 is connected to the dust collector 140 through a communication pipe 133a (refer to FIG. 2). It is preferable that one or more suction grooves 131c formed in the forward and backward directions are provided on the bottom surface of the nozzle housing 133 and in front of the suction port 131a.

[0042] The suction groove 131c serves as a foreign material suction passage in front of the nozzle housing while preventing the suction port 131a from being blocked, thereby minimizing the overload of the motor in the air suction assembly 120.

[0043] A broom 131d is provided on the outer periphery of the rear of the suction port 131a, and the broom 131d sweeps up the dust on the ground while preventing the dust from being scattered behind the suction head due to the rotation of the agitator 132. The left and right lengths of the broom 131d are relatively long, and it is best to use soft materials such as rubber.

[0044] The two ends of the agitator 132 are rotatably connected to both sides of the lengthwise periphery of the suction port 131a, that is, connected to the left and right sides of the suction port 131a, to clean the ground and the dust on the carpet.

[0045] The agitator 132 includes a rotating body 132a that has a rotating shaft (not shown) protruding at both ends and is provided at the suction port 131a, and one or more blades 132b, 132c are provided to the outer peripheral surface of the rotating body. Both side walls of the suction port 131a are respectively formed with grooves or holes (not shown) for inserting the rotating shaft of the rotating body 132a.

[0046] When the rotating body 132a rotates, the blades 132b and 132c shake the foreign matter accumulated on the ground or stick to the ground, and at the same time, they sweep up the suction port (131a).

[0047] The blades 132b and 132c may be linear in the length direction of the rotating body 132a, or the middle part of the rotating body 132a may be inclined at a certain angle in opposite directions to extend to both sides to form a bilaterally symmetrical structure, or it may be rotated like this embodiment The outer peripheral surface of the body 132a forms a spiral shape.

[0048] The blades 132b and 132c are divided in the longitudinal direction, and are composed of a plurality of small blades (not shown). The inner ends of the blades 132b and 132c are fixed to the outer peripheral surface of the rotating body 132a, and the blades 132b and 132c are detachably coupled to the rotating body 132a for replacement and repair.

[0049] The inhalation device 130 further includes a serration 135 provided on at least one of the one or more blades 132b, 132c.

[0050] The serration 135 includes serrations 135a arranged in the length direction of the blade 132b provided with the serration, and introduces foreign matter with a soft surface into the suction device 130 when the automatic vacuum cleaner cleans the floor of the room. For example, when an automatic vacuum cleaner is cleaning a carpet, if there are foreign substances such as a sponge on the carpet, the serrated part 135 bites the sponge and introduces it to the suction port 131a.

[0051] The serration 135a constituting the serration portion 135 may be formed on the entire outer end of the blade, but it is preferably formed only on a part of the outer end of the blade 132b. In more detail, the serrations 135a are formed only at the center of the outer end of the blade, or may be formed on both sides or one side of the outer end of the blade.

[0052] The serrations 135a can also be spaced apart from each other in the length direction of the blade 132b. If the plurality of blades 132b and 132c include at least two blades each having a serrated portion 135, the serrated portion 135 is preferably formed at different positions on the outer end of each blade.

[0053] For example, if the plurality of blades 132b and 132c include three blades each having a serrated portion 135, it is preferable that the serrated portion 135 on one blade is formed on the central part of the outer end, and the serrated portion 135 on the other blade Formed on one side of the outer end, the serration 135 on the remaining one blade is formed on the other side of the outer end.

[0054] The plurality of blades 132b and 132c include at least one flat blade 132c with a flat outer end. In this case, it is best that the blades 132b and the flat blades 132c having the serrated portion 135 are alternately arranged on the outer peripheral surface of the rotating body 132a. A brush (not shown) may also be provided on the rotating body 132a.

[0055] In order to rotate the agitator 132, a motor 136 for the agitator and a belt 137 for transmitting the power of the motor 136 for the agitator to the agitator 132 are provided on one side of the nozzle housing 133. When the rotational force of the agitator motor 136 is transmitted to the agitator 132 through the belt 137, the agitator 132 rotates and sweeps the foreign matter on the floor toward the suction port 131a.

[0056] The suction device 130 of the automatic vacuum cleaner of the present invention is arranged under the vacuum cleaner body 110 and can move up and down, shortening the distance between the indoor floor and the suction port 131a.

[0057] When the vacuum cleaner body 110 of the automatic vacuum cleaner uses the driving wheels 150 and 160 to move and clean the ground, the suction device 130 sucks in foreign matter on the ground while sliding while touching the ground.

[0058] That is, when the automatic vacuum cleaner 100 passes through a pit on the ground, the suction device 130 descends along the surface of the recess to suck in foreign matter, and the automatic vacuum cleaner 100 rises along the ground and returns to its original position after passing through the pit on the ground.

[0059] The suction device 130 of the automatic cleaner is rotatably connected to the cleaner body 110 through a hinge connection part.

[0060] The hinge connection portion includes a first connection portion (not shown) provided on the vacuum cleaner body 110, a second connection portion 220 provided on the suction device 130, and a second connection portion 220 that is rotatably connected to the first connection portion Pin (not shown).

[0061] It is best that the hinge connection part is connected to the front end of the inhalation device 130, and in more detail, they are provided on both sides of the front end of the inhalation device 130. That is, the first connection portion is provided on the outer periphery of the front of the opening on the bottom surface of the cleaner body, and the second connection portion 220 is provided on the front end of the suction device 130. The first connecting portion and the second connecting portion 220 are each provided with a pin hole 230a into which a pin (not shown) is inserted.

[0062] When the automatic cleaner 100 moves on the ground and cleans at the same time, the auxiliary wheels of the suction device 130 contact the ground of the pit under the action of gravity, and the suction port 131a sucks foreign matter in a state close to the ground.

[0063] In order to make the suction device 130 more closely contact the cleaning floor, an elastic member (not shown) may be provided between the cleaner body 110 and the suction device. The elastic member is preferably arranged on the upper part of the inhalation device 130.

[0064] Of course, a certain weight can also be added to the inhalation device 130 to replace the elastic component. In the present invention, the weight of the motor 136 for the agitator can function as a part of the weight object.

[0065] On the other side of the inhalation device 130, that is, at the rear end, a detachment preventing part is provided which is hung on the bottom surface of the cleaner body 110 to prevent the inhalation device from escaping downward. The detachment preventing portion includes a hanging protrusion 240 formed on the inhalation device 130 to hang around the rear periphery of the opening.

[0066] The functions of the automatic vacuum cleaner of the present invention are as follows:

[0067] First, an operation signal is input to the automatic vacuum cleaner 100 through the power switch or the remote control on the vacuum cleaner body 110, and the automatic vacuum cleaner 100 slowly moves along the indoor floor while sucking in dust and other foreign objects on the floor through the suction device 130.

[0068] The suction device 130 sucks in foreign substances while moving downward along the surface of the recess. The suction device 130 uses the air suction assembly 120 connected with the air outlet of the dust collector 140 to drive the foreign substances on the indoor floor together with the air. Inhale through the mouth 131a.

[0069] In order to more smoothly suck the foreign substances accumulated on the ground and the foreign substances adhering to the ground into the suction port 131a, the blades of the agitator 132 provided on the suction device 130 shake the foreign substances accumulated on the ground and the foreign substances adhering to the ground. The foreign matter on the ground is swept up to the suction port 131a.

[0070] Particularly, the serrations 135 formed on at least one or more blades 132b bite into the suction port 131a after biting into the foreign material with soft surface and light weight such as sponge.

[0071] The foreign matter flowing into the automatic cleaner through the suction device 130 flows into the dust collecting device 140 through the communication pipe 133a. The air separated from the foreign matter by the dust collecting device 140 is discharged to the outside of the cleaner body 110 through the fan.

[0072] The vacuum cleaner suction device of the present invention is very easy to remove foreign substances with light weight and soft surface, such as sponges deposited on the floor, which is the object of cleaning. The cleaning performance is improved, the cleaning time is shortened, and the battery life can be extended.