KR100750724B1 - Suction brush of vacuum cleaner - Google Patents

Abstract

The present invention relates to a suction brush of a vacuum cleaner, wherein the suction brush (50) of the vacuum cleaner includes a brush body (51) having a dirt suction port (53b) formed on a lower surface thereof, and a plurality of blades (73). The turbine 70 is rotatably installed in the brush body 51 so as to be positioned above the dirt suction port 53b, and is formed to protrude a predetermined length from the outer circumferential surfaces of both ends of the turbine 70, and the dirt suction port when the turbine 70 is rotated. And a striking member 78 for striking the surface to be cleaned through 53b. According to the present invention configured as described above, as the turbine 70 is rotated by the air flowing into the suction brush 50 when the cleaner is driven, the striking member 78 can hit the surface to be cleaned, and the bedding of the bedding or the like. The cleaning efficiency of the cleaner can be improved by preventing the dirt suction port 53b from being clogged by the duvet sucked into the suction brush 50 during the cleaning of the type, and at the same time, brushing off the dust contained in the duvet.

Vacuum cleaner, suction brush, turbine, striking member

Description

Suction brush of vacuum cleaner}

1 is a perspective view showing a conventional vacuum cleaner.

2 is a cross-sectional view showing an operating state of a conventional suction brush.

Figure 3 is an exploded perspective view of the suction brush of the vacuum cleaner according to an embodiment of the present invention.

4 is a cross-sectional view showing a cross section taken along the line A-A in FIG.

Figures 5a to 5b is a cross-sectional view showing the cross section of line B-B of Figure 3 to explain the operating state of the suction brush of the vacuum cleaner according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: surface to be cleaned 10: cleaner body

31: extension tube 50: suction brush

51: brush body 52a: air inlet

53b: dirt suction port 60: connection

70: turbine 71: rotating shaft

73 turbine blade 78 hitting member

The present invention relates to a suction brush of a vacuum cleaner, and more particularly to a suction brush of a vacuum cleaner having a striking member so as to clean the bedding, such as duvets and curtains.

As shown in FIG. 1, a conventional vacuum cleaner includes an extension tube 31 and an extension hose 32 connecting the cleaner body 10, the suction brush 20, and the suction brush 20 and the cleaner body 10. Include.

The vacuum cleaner configured as described above, when the operation switch 33a of the handle 33 provided on the extension pipe 31 is operated, a fan motor (not shown) built in the cleaner body 10 is driven to operate the cleaner body 10. Negative pressure is formed in the internal dust collecting chamber (not shown). The negative pressure generated in the dust collecting chamber generates suction force in the suction brush 20, and dirt of the surface to be cleaned is sucked into the cleaner body 10 through the suction brush 20 together with the surrounding air by the suction force. The sucked air is led to the dust collecting chamber so that the dirt is separated by a predetermined filter means (not shown), and the clean air after the dirt is separated is discharged to the outside through an exhaust port (not shown) formed at one side of the cleaner body 10. As a result, cleaning of the surface to be cleaned can be performed.

However, as shown in FIG. 2, the vacuum cleaner having the conventional suction brush 20 is cleaned in the dirt suction port 25 by the suction force formed in the suction brush 20 when cleaning bedding materials such as a blanket and a curtain. It often happens that part of the water 1 is sucked in.

In this case, in order to perform a smooth cleaning, the user has to manually remove the cleaning object 1 sucked into the dirt suction port 25 of the suction brush 20.                         

In addition, the dirt suction port 25 to be sucked with air is blocked by the object to be cleaned 1 so that the inflow of air is suppressed, so that it is difficult to inhale the dirt on the surface to be cleaned around the dirt suction port 25, as well as a fan motor. There is a disadvantage in that the overload, the cooling is also difficult to reduce the durability of the cleaner.

The present invention has been made to solve the above problems, the dust contained in the surface to be cleaned by hitting the surface to be cleaned and at the same time to prevent the object to be sucked into the dirt inlet during cleaning of bedding, such as duvets and curtains It is an object of the present invention to provide a suction brush of a vacuum cleaner whose structure is improved to shake off.

In order to achieve the above object, the suction brush of the vacuum cleaner according to the present invention has a connection portion communicating with the cleaner body is formed on one side, a dirt suction port is formed on the lower surface, and the connection portion and the dirt suction port are connected to the inside A brush body having a space portion, a turbine having a plurality of blades and rotatably installed in the space portion so as to be positioned above the dirt suction port, and protruding to a predetermined length from outer peripheral surfaces of both ends of the turbine, and rotating the turbine It characterized in that it comprises a blow member for hitting the surface to be cleaned through the dirt suction port.

In addition, the striking member may preferably be divided into a plurality of forks, so that the striking member is prevented from being damaged as the surface to be cleaned is hit.

In addition, in order to maintain the rotational drive of the turbine by the inlet air more than a predetermined value, it is more preferable that the air inlet is further formed on the upper wall of the brush body forming the ceiling of the space portion.

Hereinafter, a suction brush of a vacuum cleaner according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. On the other hand, the same reference numerals are assigned to the same components as the prior art, and detailed description thereof will be omitted.

Referring to FIG. 3, the suction brush 50 of the vacuum cleaner according to the embodiment of the present invention includes a brush body 51, a turbine 70, and a striking member 78.

Here, the brush body 51 includes an upper housing 52 and a lower housing 53. A dirt suction port 53b is formed at the bottom of the lower housing 53 so that dirt on the surface to be cleaned may be introduced. Then, as the upper and lower housings 52 and 53 are coupled, a predetermined space portion is formed inside thereof, and the connection portion 60 is coupled to one side thereof. The connection part 60 is for connecting the suction brush 50 to the extension pipe 31 (see FIG. 1) and the extension hose 32 (see FIG. 1) or the cleaner body 10 (see FIG. 1). The connection part 60 communicates with the space part formed at the inner side when the upper and lower housings 52 and 53 are coupled, and thus, the blood sucked through the dirt inlet 53b of the bottom surface of the lower housing 53. It is responsible for a part of the air flow path including the dirt on the cleaning surface. On the other hand, the connecting portion 60 may be formed integrally with the upper housing 52 or the lower housing 53, of course.

The turbine 70 includes a rotation shaft 71 and a turbine blade 73, and is rotatably installed above the dirt suction port 53b in the space part. The turbine blade 73 is formed to protrude from the rotational shaft 71 at a substantially central portion of the turbine 70, and these turbine blades 73 are preferably arranged on the outer circumference of the rotational shaft 71 at equal intervals from each other. Here, the turbine 70 is installed so that free rotation is possible by the bracket 53a provided in the lower housing 53, and the predetermined bearing member 56a provided in the both ends of the turbine 70, for example. In addition to these methods, various methods may be used to rotatably install the turbine 70.

The turbine 70 in this embodiment configured as described above is rotated by the air flowing through the dirt suction port 53b. In addition, rotational driving is also possible by the air introduced through the separately provided air inlet 52a. Here, the air inlet 52a is formed in the upper wall of the suction brush 50 corresponding to the ceiling of the space part, that is, the upper housing 52. In addition, the air inlet 52a is formed in the front portion of the housing so as to be spaced apart from the turbine 70 by a predetermined distance, and the same direction as the rotation direction of the turbine 70 rotated by the air introduced through the dirt inlet 53b. It is preferable to allow the turbine 70 to rotate. The air inlet 52a is formed in a slit form, and may be formed in various forms in addition to the illustrated slit form.

On the other hand, at both ends of the turbine 70, at least one striking member 78 is installed to protrude from the outer periphery of the turbine 70 so that it can be rotated at the same time when the turbine 70 is rotated. At this time, the striking member receiving portion 75 is formed at both ends of the turbine 70 to install the striking member 78, the striking member receiving portion 75 may be omitted depending on the structure of the striking member 78. There will be.                     

The striking member 78 is for striking the bedding material to be cleaned when the cleaner is driven, and is preferably formed of a fiber material or a rubber material. Then, when the turbine 70 rotates, it is installed to protrude to a predetermined length so as to be exposed to the outside of the suction brush 50 through the dirt suction port 53b and strike the surface to be cleaned. In addition, the tip portion 78a is formed in a plurality of forked portions to prevent the bedding material from being damaged when the surface to be cleaned is hit. The tip portion 78a of the striking member 78 formed as described above can disperse the impact transmitted to the surface to be cleaned when the striking member 78 strikes the surface to be cleaned. On the other hand, the striking member 78 can be installed in the turbine 70 is variously deformed regardless of the shape in the present embodiment.

4 shows an example of a coupling structure of the striking member 78 and the turbine 70, the striking member 78 is a receiving groove formed on the outer circumference of the striking member receiving portion 75 formed on both ends of the turbine 70 It is inserted at 75c. After the insertion into the receiving groove 75c, the striking member 78 is a support plate 75b formed inside the body 75a of the striking member accommodating portion 75 and the pressure plate 76 elastically supported by the spring 77. Is fixed by. When replacing the striking member 78 due to long use of the suction brush 50 is formed integrally with the pressure plate 76, the engaging button 76a exposed outside the body 75a of the striking member receiving portion 75 Press and remove the striking member 78 from the receiving groove 75c and replace.

5a to 5b show an operating state of the suction brush 50 of the vacuum cleaner configured as described above.

When the vacuum cleaner is driven, first, air is introduced through the air inlet 52a and the dirt suction port 53b by the suction force generated in the suction brush 50, and the turbine 70 is rotated by the introduced air. Then, when cleaning is performed while moving the suction brush 50 on the surface to be cleaned 1 such as a blanket, a part of the object to be cleaned 1 is sucked into the dirt suction port 53b. Accordingly, the turbine 70 is rotated only by the air introduced through the air inlet 52a as indicated by the solid line in the figure. At this time, the rotational direction of the turbine 70 is rotated in the same direction as the rotational direction when the cleaner is initially driven, and the rotational direction is the same as the arrow indicated by the hidden line in the figure.

As the turbine 70 is rotated as described above, the striking member 78 is also rotated together with the turbine 70. The convex portion 52b is formed on the upper portion of the striking member 78 of the upper housing 52 so as to secure a space in which the striking member 78 protruding from the turbine 70 by a predetermined length is rotated. In the space formed below the convex portion 52b, the striking member 78 can be freely rotated without being disturbed by the inner surface of the upper housing 51. In addition, as the convex portion 52b is formed, the thickness of the brush body 50 except for the convex portion 52b may be formed to be thin. Therefore, the distance between the air inlet 52a and the turbine 70 can be narrowed, so that the air flowing into the air inlet 52a can be driven to rotate the turbine 70 before it is dispersed in the brush body 50. Therefore, the efficiency is increased.

On the other hand, the striking member 78 is formed of a soft material such as fiber or rubber, and is rotated in a bent state by the inertial force generated during rotation and air flowing into the brush body 51.                     

As shown in FIG. 5B, when the striking member 78 is rotated together with the turbine 70 to reach a position close to the dirt inlet 53b, the object to be sucked into the dirt inlet 53b is It collides with the striking member 78. At this time, the impact amount delivered to the object to be cleaned 1 becomes larger as the object to be cleaned 1 is hit while the striking member 78 is bent while being rotated as described above. Such an impact amount may be increased by the elastic force of the impact member 70 when it is formed of a material such as rubber, thereby improving the cleaning efficiency. Further, since the tip portion 78a of the striking member 78 is divided into several parts, the impact generated when the striking member 78 is hit can be prevented from being concentrated at a part, thereby preventing damage to the object to be cleaned 1. have.

As described above, as the striking member 78 strikes the object to be cleaned 1, a part of the object to be cleaned 1 sucked into the dirt suction port 53b can be returned to its original position. After the surface to be cleaned 1 is returned to its original position by the striking member 78, air may flow into the brush body 51 through the dirt suction port 53b. Therefore, the dirt in the vicinity of the dirt suction port 53b can be sucked in. Then, as the striking member 78 strikes the surface to be cleaned, the dust that is stuck or embedded in the object to be cleaned 1 is exposed to the outside, and the dust exposed to the outside is exposed to the air through the dirt suction port 53b. With the suction brush 50 is introduced into the inside.

On the other hand, the cyclone dust collector according to the present embodiment, as shown in Figure 1, can be used in canister-type cleaners, of course, can be used in the upright type vacuum cleaner and small vacuum cleaner not shown.

According to the suction brush 50 of the vacuum cleaner of the present invention configured as described above, when cleaning the bedding, such as duvets and curtains, by the suction force acting on the suction brush 50 It is possible to suppress a part of being sucked into the dirt suction port 53b.

Since the cleaning can be performed while the dirt suction port 53b is kept open, the cleaning time is saved because the user does not have to remove the cleaning surface 1 sucked into the dirt suction port 53b by hand, and the cleaning efficiency is reduced. This is improved.

And, through the dirt inlet 53b and the air inlet 52a, it is possible to continuously suck the outside air more than a predetermined amount, it is possible to suppress the overload generated in the fan motor built in the cleaner body 10, Since the fan motor can be continuously cooled by the inflow air, the durability of the cleaner is improved.

In addition, as the striking member 78 installed in the turbine 70 embedded in the suction brush 50 strikes the surface to be cleaned, it is possible to shake off dust existing in the interior of the surface to be cleaned, Sweep out dirt, improving cleaning efficiency.

On the other hand, the present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the invention claimed in the claims. Of course, such changes are within the scope of the described claims.

Claims (3)

A brush body having a connection part communicating with the cleaner body on one side, a dirt suction port formed on a lower surface thereof, and a space part connected to the connection part and the dirt suction port inside; A turbine having a plurality of blades and rotatably installed in the space portion so as to be positioned above the dirt inlet; It is detachably installed at both ends of the turbine, protrudes from the outer circumferential surface of the turbine to a predetermined length, and strikes the surface to be cleaned through the dirt inlet during rotation of the turbine, the distance between the dirt inlet and the surface to be cleaned Suction brush comprising a; vacuum cleaner comprising a. The method of claim 1, wherein the striking member, A suction brush for a vacuum cleaner, characterized in that the tip portion is divided into a plurality of forks. The suction brush of the vacuum cleaner of claim 1, wherein an air inlet is further formed on an upper wall of the brush body forming the ceiling of the space part.

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