CN1286422C - Turbine brush - Google Patents

Abstract

A turbo brush for a vacuum cleaner, comprising: a brush body including upper and lower housings, the lower housing having suction slits through which air is sucked from a cleaning surface; an agitator unit having provided brush bristles; a turbine unit, which is rotatably supported in the lower case, and rotates under the action of air sucked into the turbine brush by the suction force generated by the vacuum cleaner; and a power transmission unit, which is connected to the agitation unit and turbine unit so that both rotate jointly. When cleaning surfaces with loose materials such as blankets or other fabrics, the suction slots of the lower housing include ribs to prevent the blankets or other fabrics from being sucked into the brush body by the suction force generated by the vacuum cleaner . The bristles come into contact with the surface to be cleaned through apertures in the suction slit defined by a plurality of ribs. Turbo brushes allow the user to easily clean surfaces with loose material. Preferably the upper case comprises a transparent material.

Description

turbo brush

technical field

The present invention generally relates to a turbo brush for a vacuum cleaner, and more particularly to a turbo brush for a vacuum cleaner having suction-preventing ribs at the bottom of the turbo brush.

Background technique

Fig. 1 is a perspective view of a conventional vacuum cleaner. The turbo brush 7 of the vacuum cleaner is in contact with and moves along the surface to be cleaned, and forms a suction path from the surface to be cleaned to the main body 9 of the vacuum cleaner. Thus, air containing dust and dirt that has been removed from the surface to be cleaned is sucked through the swirl brush 7 into the main body 9 of the vacuum cleaner.

The suction path includes an extension pipe 8a connected to the turbo brush 7, an operating handle 8b, and a flexible hose assembly 8c.

If the surface to be cleaned is a fabric, such as a carpet, dust and dirt can be effectively removed if they are separated from the surface to be cleaned. Thus, a brush with an agitator is proposed. The agitator separates dust and dirt from the surface being cleaned through repeated actions, such as scraping or hitting.

The turbo brush 7 has an agitator housing and a turbine housing, wherein the turbo brush 7 comprises suction slots in the brush body, while the agitator housing and the turbine housing are separated by a partition 17 . The turbine housing is in fluid communication with the agitator housing through an air passage.

FIG. 2 is a detailed exploded perspective view partially showing an example of a conventional turbo brush 7 . As shown in FIG. 2 , the turbo brush 7 of a conventional vacuum cleaner includes a turbo brush body 10 , an agitator unit 20 and a turbo unit 30 .

The turbine brush body 10 includes an upper case 11 and a lower case 12 joined to the upper case 11 . The upper housing 11 is preferably made of translucent plastic material. A suction slit 21 is formed at the front of the bottom of the lower housing 12, said suction slit 21 being closest to the surface to be cleaned during operation.

A discharge pipe 60 to be connected with the extension pipe 8 a of the vacuum cleaner main body 9 is provided at the rear side of the brush body 10 . The discharge pipe 60 is detachably connected to the extension pipe 8a through a connecting piece 41 formed with a ball spring structure.

Protrusions 22 are formed along the outer periphery of the lower case 12 . Recesses (not shown) are formed on the upper case 11 and correspond to the protrusions 22 . The upper case 11 and the lower case 12 are in close contact with each other through the connection between the protrusion 22 and the recess, and are fixed to each other, for example, by screws or other suitable connection methods.

The brush body 10 includes an agitator housing chamber 14 and a turbine housing chamber 15 . A suction slit 21 is formed at a lower portion of the lower housing 12 to be in fluid communication with the agitator housing chamber 14 . The suction slot 21 is rectangular and extends axially at the bottom of the lower housing 12 . The agitator unit 20 comes into contact with the surface to be cleaned through the suction slit 21 .

The agitator housing 14 and the turbine housing 15 are defined by a divider 17 extending the length of the slot 21 . An air passage 16 is formed in a central portion of the partition 17 to provide fluid communication between the agitator housing chamber 14 and the turbine housing chamber 15 .

The agitator unit 20 is rotatably provided in the agitator housing chamber 14 of the brush body 10 . The turbine unit 30 is rotatably disposed in the turbine accommodation chamber 15 of the brush body 10 . A plurality of radially extending bristles are provided on the agitator unit 20, the bristles being spaced apart at regular intervals.

The agitator unit 20 and the turbine unit 30 are connected through a power transmission unit 50 . The power transfer unit 50 may be a timing belt or other suitable device.

The turbine unit 30 includes a turbine 35 , a turbine shaft 37 passing through the turbine 35 in the axial direction, a holder 39 connected to both ends of the turbine shaft 37 , and a bearing that is in close contact with the lower case 12 and inserted between the holder 39 and the turbine 35 . bearing parts. According to the above structure, when a suction force is applied to the turbine brush 7 , the turbine 35 rotates, and then the agitator unit 20 is rotated by the action of the power transmission unit 50 . That is, the turbine 35 is rotated by the air sucked into the discharge pipe 60 through the suction slit 21 , the agitator housing chamber 14 , the air passage 16 and the turbine housing chamber 15 . Thereby, the rotating agitator unit 20 scrapes or strikes, thereby separating dust and dirt from the surface being cleaned.

However, the conventional vacuum cleaner as described above using the vacuum cleaner turbo brush 7 has disadvantages as described below.

First, when the agitator unit 20 rotates, since the bottom side of the turbo brush 7 includes a suction slit 21 extending in the axial direction of the agitator unit 20 with a rectangular shape, the surface to be cleaned such as a blanket or fabric is in the suction slit. It is sucked at the port 21, or is attached to the agitator unit 20. As a result, the cleaning operation is stressed and the vacuum cleaner body 9 can be overloaded, causing mechanical failure.

Secondly, since the upper casing 11 of the conventional turbo brush 7 is made of translucent or opaque plastic material, it is difficult to observe the inside of the brush body 10 . When the upper case 11 is opened to enable the user to check the internal state of the brush body 10, the opening/closing structure is complicated, thereby making it difficult to operate.

Third, when opening and turning the upper housing 11 of the brush body 10, the impeller 30 is easily disengaged from the brush body 10 due to gravity, and the parts including the unit will also move or move out of their proper positions.

Contents of the invention

The present invention has been proposed in view of the above disadvantages, and an object of the present invention is to provide a turbo brush for a vacuum cleaner which does not cause the surface to be cleaned, such as a rug or carpet, to be sucked or attached to its bottom.

Another object of the present invention is to provide a turbo brush for a vacuum cleaner having an improved structure for easy maintenance.

In order to achieve the above objects, a turbo brush for a vacuum cleaner according to a preferred embodiment of the present invention includes: a brush body including an upper casing and a lower casing having a side wall and a suction slit , which sucks air from the surface to be cleaned through the suction slit; the agitator unit, which is rotatably supported on the lower case, and has bristles arranged at predetermined intervals; the turbine unit, which is rotatably supported near the lower case and rotated by air sucked into the vacuum cleaner by suction; and a power transmission unit that connects the agitator unit and the turbine unit to move in conjunction with each other. The suction slit of the lower housing has a plurality of ribs to prevent the surface to be cleaned, such as blankets or other fabrics, from being sucked into the brush body under the suction force generated by the vacuum cleaner. The bristles are arranged at predetermined intervals between the ribs of the suction slit so that at least a portion of the bristles come into contact with the surface to be cleaned through the suction slit. At least one first protrusion is formed at the front of the upper case, and at least one second protrusion is formed at the rear of the upper case. A notch corresponding to the first protrusion is formed at the front of the lower case, and a lock corresponding to the second protrusion is formed at the rear of the lower case.

Preferably, the upper case is transparent so that a user can observe the interior of the brush body.

The agitator unit further includes an agitator and a connecting piece fixed on each side wall of the lower housing for supporting the agitator.

The connecting member includes a bearing for supporting the rotating shaft of the agitator and a first holder surrounding the bearing, and a guide wall is formed at each side wall of the lower housing to detachably support the first holder. Keep pieces.

The turbine unit includes a turbine, a turbine shaft, and a second holder for supporting the turbine shaft.

The power transmission unit includes a first pulley disposed around the shaft of the turbine unit and a second pulley disposed around the shaft of the agitator unit, and the connecting member includes connecting the first pulley and the pulley. the belt of the second pulley.

The shape of each rib may be configured such that its width gradually increases from the middle toward one end.

The turbo brush further includes a discharge pipe connected to the rear of the brush body.

The discharge pipe includes a locking unit for connecting the discharge pipe and an extension pipe of the vacuum cleaner.

The locking unit includes a hook formed at an inner wall at the rear of the discharge pipe and a button removed from the hook to move in conjunction with the hook.

The agitator unit includes an agitator and a connecting piece fixed at each side wall of the lower housing for supporting the agitator.

The connecting member includes a bearing for supporting the rotating shaft of the agitator and a first holder surrounding the bearing, and a guide wall for detachably fixing the first holder is formed on each side of the lower case. a side wall. The turbine unit includes a turbine, a turbine shaft, and a second holder for supporting the turbine shaft.

The power transmission unit further includes a first pulley provided in the turbine unit, a second pulley provided in the agitator unit, and a belt connecting the first pulley and the second pulley. .

The shape of each rib may be configured such that its width gradually increases from the middle toward one end.

Description of drawings

The above and other features and advantages of the present invention will become more apparent through the following detailed description in conjunction with the accompanying drawings, wherein:

Figure 1 is a perspective view of a conventional vacuum cleaner;

Figure 2 is an exploded perspective view of a turbo brush of a conventional vacuum cleaner;

3 is a perspective view of a main part of a turbo brush with ribs on the bottom for a vacuum cleaner according to the present invention;

Figure 4 is a cutaway side view of a turbo brush according to the present invention;

Figure 5 is a detailed exploded perspective view of a turbine unit of a turbine brush according to the present invention; and

Fig. 6 is a cross-sectional top view of a turbo brush according to the present invention.

Detailed ways

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. For components having the same structure and function as those of the conventional vacuum cleaner described above, the same reference numerals will be used.

FIG. 3 is a perspective view showing a main part of a vacuum cleaner turbo brush 7 having a ribbed bottom according to the present invention. FIG. 4 is a detailed side view, partially sectioned, showing the turbo brush 7 . As shown in FIG. 3, the turbo brush 7 of the vacuum cleaner includes a brush body 10, an agitator unit 20 and a turbine unit 30 disposed in the brush body 10, and a power transmission unit that drives the agitator unit 20 and the turbine unit 30 in conjunction with each other. 50 and a discharge pipe 60 connected to the rear side of the brush body 10.

The brush body 10 comprises a lower housing 12 having a suction slit 21 through which air is sucked in from the surface to be cleaned, and an upper housing 11 joined to the lower housing 12 . As shown in FIG. 4 , the agitator housing chamber 14 and the turbine housing chamber 15 are partitioned by a partition 17 . An air passage 16 is formed in the center of the partition 17 for providing fluid communication between the agitator housing 14 and the turbine housing 15 . The shape of the partition 17 can take various forms. For example, the ends of the two portions of the partition 17 adjacent to the air passage 16 may be perpendicular to the bottom of the lower housing 12, as shown in FIG. Show.

The upper casing 11 is made of transparent material, so that the user can observe the inside of the brush body 10, thereby providing convenience for the maintenance of the vacuum cleaner. Preferably the upper housing 11 is made of a transparent plastic material.

The lower housing 12 includes an agitator unit 20 rotatably accommodated in the agitator housing chamber 14 and a turbine unit 30 accommodated in the turbine housing unit 15 , and is driven to rotate by air sucked into the brush body 10 by a vacuum cleaner (not shown). The agitator unit 20 has fully extended bristles 25 separated from each other by a predetermined distance so as to be formed on the agitator 27 at regular intervals.

The upper case 11 has at least one first protruding piece 31 at its front and at least one second protruding piece 33 at its rear. A notch 71 is provided at the front of the lower case 12 to correspond to each first protrusion 31 , and a locking member 72 is provided at the rear of the lower case 12 to correspond to each second protrusion 33 . Thus, the upper housing 11 can be easily separated from the lower housing 12 by pressing the two sides of the locking member 72, thereby allowing the lower housing 12 to be easily separated from the upper housing 11, thereby enabling the inside of the turbine brush 7 to Maintenance becomes easier.

The suction slot 21 of the lower housing 12 has a plurality of longitudinally extending ribs 22 for preventing loose materials to be cleaned, such as blankets or other fabrics, from being sucked into the brush body 10 by the suction force generated by the vacuum cleaner. . The bristles 25 are arranged on the agitator 27 to correspond to the suction slit 21, so that at least a part of the bristles 25 can contact the surface to be cleaned through the suction slit 21. The bristles 25 are preferably arranged in a helical pattern at regular predetermined intervals, and the agitator unit 20 may have a plurality of bristles to correspond to each opening between the ribs 22 of the suction slot 21, as shown. Preferably, each rib 22 has a shape and configuration such that its width gradually widens from the middle toward one end, as shown. In this way, the bristles 25 can be easily accommodated in the openings between the ribs 22, so that the surface to be cleaned can be freely cleaned. Optionally, the width of the rib 22 may gradually increase from the middle toward both longitudinal ends of the suction slit 21 .

The agitator unit 20 comprises an agitator 27 and a connection piece 29 cooperating with each side wall of the lower housing 12 for supporting the agitator 27 in the turbo brush 7 . The connecting piece 29 includes a bearing 29a for supporting the shaft of the agitator 27 and a first holder 29b surrounding said bearing 29a. A guide wall 75 having a guide protrusion 77 is formed at each side wall of the lower case 12 to detachably connect the first holder 29 b in the lower case 12 .

FIG. 5 is an enlarged perspective exploded view of the turbine unit 30 of the turbine brush 7 . As shown in FIGS. 3 and 5 , the turbine unit 30 includes a turbine 35 , a turbine shaft 37 , and a second holder 39 for supporting the turbine shaft 37 . In this structure, the turbine unit 30 requires several more components than the conventional turbine unit 20 , as shown in FIG. 2 . Also, when the upper case 11 is separated from the lower case 12, since the second retainer 39 is directly disposed in the recess 18 of the turbine housing chamber 15 at the rear of the lower case 12, the turbine unit 30 may be prevented from moving.

FIG. 6 is a plan view of the turbo brush 7 . As shown in FIGS. 3 and 6 , the power transmission unit 50 includes a first pulley 51 disposed around the shaft of the turbine unit 30 , a second pulley 53 disposed around the shaft of the agitator unit 20 and connecting the first pulley 51 As with the belt 55 of the second pulley 53, the rotation of the turbine 35 drives the agitator 27 to rotate similarly.

The discharge pipe 60 has a locking unit 65 connected to the extension pipe 8a of the vacuum cleaner (see FIG. 4). The locking unit 65 includes a hook 61 formed at the inner wall at the rear of the discharge pipe 60 and a button 63 removed from the hook 61 to move in conjunction with the hook 61 .

When the extension pipe 8 a of the vacuum cleaner is connected with the turbo brush 7 at the discharge pipe 60 , the hook 61 is engaged with the engaging recess 89 provided in the extension pipe 8 a and corresponding to the hook 61 . When the button 63 is depressed, the hook 61 moves upward in conjunction with the button 63 and is released from the engagement recess 89 of the extension tube 8a. Thereby, the extension pipe 8 a can be separated from the turbine brush 7 by being drawn out from the discharge pipe 60 .

According to the above structure, the suction force provided to the turbine brush 7 by a vacuum cleaner (not shown in FIGS. 3-6 ) rotates the turbine 35 , which in turn rotates the agitator unit 20 through the power transmission unit 50 . The turbine 35 is rotated by the air sucked into the discharge pipe 60 through the suction slot 21 , the agitator housing chamber 14 , the air passage 16 and the turbine housing chamber 15 . Accordingly, the agitator unit 20 also rotates, and separates dust and dirt on the surface to be cleaned by a scraping or impacting action on the surface to be cleaned.

In the case of cleaning blankets or other fabrics, the ribs in the suction slots 21 prevent or prevent the blankets or fabrics from being sucked through the suction slots 21 of the brush body 10 . In addition, the bristles 25 provided on the agitator 27 at predetermined intervals between the ribs rotate in conjunction with the agitator 27, thereby hitting the blanket so that dust and dirt are effectively separated from the blanket or other fabrics.

Any malfunctions within the brush body 10 during cleaning operations are easily observed by the user. The operation of the brush 7 in the brush body 10 can be observed immediately through the transparent shell of the upper casing 11, and the upper casing 11 can be easily separated from the lower casing 12 so as to enter the inside of the brush body 10, making maintenance easier easy.

When the upper case 11 is separated from the lower case 12 without overturning the upper case 11, the turbo unit 30 is not easily separated from the lower case 12 due to the tight connection between the turbo unit 30 and the lower case 12. up and out.

The turbo brush 7 is conventionally used as an auxiliary brush for vacuum cleaners, or it can also be used as a general brush for cleaning carpets if a longer suction slot 21 is provided.

According to the invention as described above, the ribs 22 prevent blankets or fabrics from being sucked at the suction slit 21, thereby preventing damage to the vacuum cleaner due to fabrics clogging in the agitator.

In addition, the transparent upper case 11 of the brush body 10 allows the user to easily observe the operation of the brush 7 and the state inside the brush body 10 . In the event of failure of the vacuum cleaner turbo brush 7, the upper housing 11 can be easily detached while the turbo brush 7 remains fixed in place, thereby facilitating handling and servicing of the turbo brush 7.

While preferred embodiments of the present invention have been described, changes and modifications to the described embodiments can be made by those of ordinary skill in the art upon understanding the basic inventive concepts of the present invention. Therefore, the appended claims are to cover the preferred embodiments described herein and all changes and modifications that fall within the principle and scope of the invention, as defined in the following claims.

Claims (16)

1. turbine brush that is used for vacuum cleaner comprises:

Brush body, described brush body comprises upper shell and lower house, described lower house has sidewall and suction sealing, by described suction sealing air is sucked from the surface that is cleaned;

The agitator unit, it rotatably is supported on the described lower house, and has the bristle that is provided at predetermined intervals;

Turbine unit, it rotatably is supported near the described lower house, and rotates under the effect that is inhaled into the air in the vacuum cleaner by suction force; And

Power transfer unit, it connects described agitator unit and described turbine unit, thereby described agitator unit is rotated in conjunction with described turbine unit,

Wherein, the described suction sealing of described lower house has a plurality of ribs, the surface that is used for preventing being cleaned is inhaled in the described brush body under the effect of the suction force that vacuum cleaner produces, and described bristle is with between the predetermined described rib that is disposed on described suction sealing, so that at least a portion bristle contacts with the surface that is cleaned through described suction sealing, surperficial any soft material is inhaled in the described turbine brush thereby described rib prevents to be cleaned; And

Wherein said upper and lower housing comprises and is used to make the structure that is engaged with each other, and comprising: at least one first prodger, and it is formed on the front portion of described upper shell; At least one second prodger, it is formed on the rear portion of described upper shell; And corresponding described first prodger and be formed on the notch of described lower house front portion and corresponding described second prodger and be formed on the locking piece at described lower house rear portion.

2. turbine brush according to claim 1 is characterized in that described upper shell is transparent, thereby makes the user can observe described brush body inside.

3. turbine brush according to claim 1 is characterized in that, described agitator unit further comprises agitator and is fixed on the connector that is used for supporting described agitator on each sidewall of described lower house.

4. turbine brush according to claim 3, it is characterized in that, described connector comprises the bearing that is used for supporting described agitator rotating shaft and around first keeper of described bearing, forms guiding wall removably to support described first keeper in each side-walls of described lower house.

5. turbine brush according to claim 1 is characterized in that, described turbine unit comprises turbine, turbine wheel shaft and is used for supporting second keeper of described turbine wheel shaft.

6. turbine brush according to claim 5, it is characterized in that, described power transfer unit further comprises first belt wheel that is provided with around the axle of described turbine unit and second belt wheel that is provided with around the rotary agitator axle of described agitator unit, and connector comprises the band that connects described first belt wheel and described second belt wheel.

7. turbine brush according to claim 1 is characterized in that, the shape of each rib can be constructed to: its width increases gradually from the centre towards an end.

8. turbine brush according to claim 1 and 2 also comprises:

Be connected to the delivery pipe at described brush body rear portion.

9. turbine brush according to claim 8 is characterized in that described delivery pipe comprises lock cell, and described lock cell is used to connect the extension of described delivery pipe and vacuum cleaner.

10. turbine brush according to claim 9 is characterized in that, described lock cell comprise the inwall place that is formed on the delivery pipe rear portion hook spare and from described hook spare remove with the hook spare mobile button that links.

11. turbine brush according to claim 8 is characterized in that, described agitator unit further comprises agitator and is fixed on the connector that each side-walls of described lower house is used to support described agitator.

12. turbine brush according to claim 11, it is characterized in that, described connector comprises the bearing that is used to support described agitator rotating shaft and around first keeper of described bearing, and the guiding wall that is used for removably fixing described first keeper is formed on each side-walls of described lower house.

13. turbine brush according to claim 8 is characterized in that, described turbine unit comprises turbine, turbine wheel shaft and is used for supporting second keeper of described turbine wheel shaft.

14. turbine brush according to claim 8, it is characterized in that, described power transfer unit further comprises first belt wheel that is arranged in the described turbine unit, is arranged on second belt wheel and band in the described agitator unit, and described band connects described first belt wheel and described second belt wheel so that the rotation of described turbine drives described agitator rotation.

15. turbine brush according to claim 8 is characterized in that, the shape of each rib can be configured to: its width increases gradually from the centre towards an end.

16. turbine brush according to claim 1 is characterized in that, the described discrete material on surface to be cleaned is a blanket.

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