Patent Application
20080092324
As a modern disk-shaped vacuum cleaner according to the present invention is schematically shown in the Figures, those details not related to the essentials of the present invention are not accounted herein. In the Figures, a motor 10, a fan 11, a dust-collecting chamber 12, a suction inlet 13 and a driving device 16 of prior art are disclosed, wherein the driving device 16 drives the vacuum cleaner moving automatically; the motor 10 rotates the fan 11 to generate suction which passes through the dust-collecting chamber 12 and sucks up external air, dust and trash at the suction inlet 13; and retains dust and trash in the dust-collecting chamber 12.
For improving dust-collecting ability of such a vacuum cleaner, the present invention provides a dust-collecting auxiliary device which is composed of two air pipes 20 and two wings 25 as shown in
Each of the air pipes 20 is a flexible tube, of which an inlet 21 at one end is fixed in a fan container 14 enclosed said fan 11, while an outlet 22 at the opposite end is fixed at the lower surface of the bottom cover 15 adjacent to and with a predetermined distance from one end of the suction inlet 13. For the outlet 22 of each air pipe 20, a nozzle 23 is provided at the lower surface of the bottom cover 15 inclined toward the suction inlet 13 and a nozzle hole 24 is attached to the end thereof. Also, the outlet 22 of each air pipe 20 is fixed in the corresponding nozzle 23.
The two wings 25 are made of flexible sheets and each wing 25 has one end respectively fixed at one side of the suction inlet 13, while the other ends thereof are extended forward and outward to give an increasing distance from another wing whereby a dust-collecting division 40, which is greater than the suction inlet 13 in width and accommodating said nozzles 23 is defined between the two wings 25. It is to be noted that the dust-collecting division 40 indicated in
In the disclosed vacuum cleaner, the motor 10 rotates the fan 11 to generate suction which passes through the dust-collecting chamber 12 and collects the external air, dust and trash at the suction inlet 13. As the collected dust and trash are retained in the dust-collecting chamber 12, the sucked air is then filtered by the filter of the dust-collecting chamber 12 before enters the two air pipes 20 through the fan container 14 to be further emitted by the nozzle holes 24 of nozzles 23. Since the nozzles 23 are inclined toward the suction inlet 13 and fenced by said wings 25, the emitted airflow can be oriented toward the suction inlet 13 and precisely facilitates collecting dust and trash and as a result enhances dust-collecting activity of the vacuum cleaner. Additionally, the dust-collecting division 40 defined by said two wings 25 enlarges dust-collecting area of the suction inlet 13 and beneficially aggrandizes dust-collecting ability of the vacuum cleaner.
Thus, the disclosed dust-collecting auxiliary device exactly enhances dust-collecting ability of the vacuum cleaner by implementing the two wings 25 to extend dust-collecting area around the suction inlet 13 and utilizing the exhausted air during dust-collecting to blow dust and trash in the dust-collecting area toward the suction inlet 13 for more smooth and fast dust-collecting.
In
at least a slot 30 positioned at the lower surface of the bottom cover;
a first fastening portion 31 and a second fastening portion 32 provided respectively at the opposite ends of said slot 30; and
a batten 33 matching the slot 30 so that a wiping cloth 34 can be pressed into the slot 30 and the two ends of the batten 33 can be fastened by the first fastening portion 31 and a second fastening portion 32 thus an wiping cloth 34 can be fixed in the slot 30 and an edge thereof resultantly stretches out the slot 30.
Herein the fastening relationship between the batten 33 and the first fastening portion 31 and a second fastening portion 32 according to the particular embodiment is described. A fastening hole 311 and a gap 321 are relatively provided at the opposite ends of the slot 30, and a hook 323 is arranged on the bottom cover adjacent to the gap 321. Further, a salient 331 is provided on one end of the batten 33 and a retaining piece 332 is extended sidelong on the opposite end of the batten 33. Thus, when the batten 33 is pressed into the slot 30, the salient 331 can be fastened in the fastening hole 311 while the retaining piece 332 on other end can be retained by the hook 323 beyond the gap 321. By this means, the batten 33 and slot 30 can be mutually engaged in a detachable way and a wiping cloth 34 may be infixed into the slot 30 by the batten 33. According to the embodiment illustrated in the Figures, the wiping cloth 34 is replaceable.
As shown in
Although a particular embodiment of the invention has been described in detail for purposes of illustration, it will be understood by one of ordinary skill in the art that numerous variations will be possible to the disclosed embodiments without going outside the scope of the invention as disclosed in the claims.
