TW201806545A - Roller-brush type broom wherein the roller brush is driven at a high gear ratio to increase the rotary speed of the roller brush - Google Patents

Abstract

A roller-brush type broom, which is provided with a roller brush, a shovel, a dust collector, a push rod, a machine body, and a separate main roller frame is disposed on both sides of the machine body, the two main rollers are hollow circular grooves and can accommodate built-in gear sets, the two built-in gear sets drive the roller brush to rotate by the torque of the main rollers. The present invention provides a roller-brush type broom, wherein the axis of the roller brush is disposed within the circumference of the main roller so that the cylinder spaces occupied by the main roller and the roller brush highly overlaps to reduce the overall size. In addition, the roller brush is driven at a high gear ratio to increase the rotary speed of the roller brush, thereby improving the efficiency of cleaning.

Description

Wheel brush type broom

A wheel brush type broom has a wheel brush, a blade, a dust box, a push rod, a body, and a main wheel frame is arranged on each side of the body. The two main wheels are hollow circular grooves and can be accommodated. Built-in gear set, two sets of built-in gear sets to drive the wheel brush to rotate by the torque of the main wheel. The invention proposes a wheel brush type broom. The wheel brush axis is set within the circumference of the main wheel so that the cylindrical space occupied by the main wheel and the wheel brush overlaps to reduce the volume. The wheel brush is driven with a high gear ratio to increase The speed of the wheel brush improves the cleaning efficiency.

Known brooms and scoops. When you want to sweep the garbage into the scoops, a little hair or dust will be left in each sweep. Therefore, you need to sweep in multiple times to clean the debris. It is quite inconvenient to operate.

Existing related plug-free electric sweepers, such as TW-M283605, TW-M294915, TW-M427907, and TW-M459835, mainly rely on the friction between the main wheel and the ground to drive the wheel brush through the wheel shaft when the sweeper is pushed. Sweep the trash in. However, the rotation angle of the wheel brush and the main wheel is the same, which causes the relative speed of the contact point between the wheel brush and the ground to be very low. It is difficult to sweep garbage into the dust box, and the cleaning effect is not good.

Existing related plug-free electric sweepers, such as TW-205704, TW-M382103, and CN-205348070U, mainly rely on the friction between the main wheel and the ground to drive the ratchet and gear set through the axle when the sweeper is pushed. The gear set will The power is transmitted to the wheel brush shaft outside the circumference of the main wheel, which drives the wheel brush to rotate and sweep the garbage in. However, due to the low overlap or complete separation of the cylindrical space occupied by the wheel brush and the main wheel, the volume of these sweepers is relatively large, which is quite cumbersome and inconvenient in practical use.

With reference to the existing two-way ratchet structure, such as the ROC patent No. I542449 two-way ratchet structure technology, no matter the main wheel is in the forward or reverse direction, the same steering power can be output by the fixed steering gear.

At present, non-electric cleaning tools often have problems such as uncleanness, low cleaning efficiency, and heavy and difficult to use. Therefore, most household cleaning relies on cleaning appliances, but in addition to energy consumption of household appliances, there are still inconveniences such as battery charging and wire limitations. In view of this, how to provide a cleaning tool that is convenient and efficient for cleaning household appliances, but without the inconvenience of battery life and wire limitations, is currently expected by the industry.

The invention proposes a wheel brush type broom. The wheel brush axis is set within the circumference of the main wheel so that the cylindrical space occupied by the main wheel and the wheel brush overlaps to reduce the volume. The wheel brush is driven with a high gear ratio to increase The speed of the wheel brush improves the cleaning efficiency.

In order to achieve the aforementioned purpose of highly overlapping the cylindrical space occupied by the main wheel and the wheel brush, the present invention sets main wheel cantilever axles at the center of the frame wall of the main wheel on both sides, instead of connecting the main shafts of the main wheels on both sides, so as not to obstruct the shafts. The wheel brush rotates; the main wheel is designed with a hollow circular groove, and a gear set is set in the circular groove. The wheel brush is driven to rotate by the built-in gear set, so that the axis of the wheel brush is within the circumference of the main wheel. The occupied cylindrical space can be highly overlapped, please refer to the second and third pictures.

The gear set built in the main wheel of the present invention may be a two-way ratchet structure, including a set of outer ring ratchets, a set of inner ring ratchets, and a planetary gear, wherein the planetary gear and the wheel brush share a shaft center. Whether the main wheel rotates forward when pushed forward or reverses when pulled backward, the planetary gear can be driven forward through a two-way ratchet structure. The wheel brush is driven to rotate forward continuously to sweep the ground garbage into the dust box. , Five pictures.

The gear set built in the main wheel of the present invention can also be a unidirectional ratchet structure, including a set of outer ring ratchets and a planetary gear, wherein the planetary gear and the wheel brush share a shaft center. When the main wheel rotates forward, the main wheel drives the outer ring ratchet and planetary gears to drive the wheel brush forward. When the main wheel reverses, the outer ring ratchet slides and the wheel brush does not rotate. Please refer to the sixth figure.

The gear set built into the main wheel of the present invention may also be a planetary gear, and the planetary gear and the wheel brush share a shaft center. When the main wheel rotates, the round groove wall of the main wheel drives the planetary gear with a gear shape, and the driving wheel brush rotates in the same direction, please refer to the seventh figure.

In order to achieve the aforementioned purpose of improving the cleaning efficiency, the built-in gear set adopted in the present invention adopts a higher gear ratio. The main rotation can drive the wheel brushes for 2 to 4 weeks to increase the frequency of the wheel brush rotation and improve the cleaning efficiency. Refer to Figures 4, 5, 6, and 7.

In summary, the wheel brush broom of the present invention can achieve the goals of high cleaning efficiency, convenient use, and simple shape. In addition, the invention does not require power and is not limited by batteries and wires. In addition to being used indoors in ordinary homes, it can also be operated outdoors, in squares and other places, and has a wider range of use.

Please refer to the second and third figures. In the present invention, the main wheel cantilever wheel shaft 103 is provided at the center of the wall of the main wheel frame 101 on both sides, instead of the shaft connecting the main wheel 11 on both sides, so as not to hinder the rotation of the wheel brush 13; The main wheel 11 is designed with a hollow round groove. The main wheel round groove 111 accommodates a built-in gear set 12. The built-in gear set 12 drives the wheel brush 13 to rotate, so that the axis of the wheel brush 13 is within the circumference of the main wheel 11. It can be highly overlapped with the cylindrical space occupied by the wheel brush 13.

Please refer to the fourth and fifth figures. The built-in gear set 12 of the present invention is an operation description of a two-way ratchet structure. A set of outer ring ratchet 121, a set of inner ring ratchet 122, a planetary gear 123 is arranged in the main wheel round groove 111 of the present invention, and the wheel brush shaft sleeve 131 is axially connected with the planetary gear 123; The outer ring ratchet 121 rotates forward, and then drives the planetary gear 123 to rotate forward. When the main wheel 11 reverses, the inner ring ratchet 122 rotates, and then the planetary gear 123 rotates forward. Therefore, the wheel brush 13 can be driven to rotate forward regardless of whether the main wheel 11 is rotating forward or reverse.

Please refer to the sixth figure. The built-in gear set 12 of the present invention is a one-way ratchet structure. A set of outer ring ratchet 121 and a planetary gear 123 are arranged in the main wheel round groove 111 of the present invention, and the wheel brush bushing 131 is axially connected with the planetary gear 123. When the main wheel 11 rotates forward, the outer ring ratchet 121 is driven to rotate forward. Then the planetary gear 123 is driven to rotate forward; when the main wheel 11 is reversed, the outer ring ratchet 121 slides away, and the planetary gear 123 does not rotate. Therefore, when the main wheel 11 rotates forward, the driving wheel brush 13 rotates forward; when the main wheel 11 reverses rotation, the wheel brush 13 does not rotate.

Please refer to the seventh figure. The internal gear set 12 of the present invention is a planetary gear operation description. The wall of the main wheel circular groove 111 of the present invention is made into a gear shape, and the wheel brush shaft sleeve 131 is axially connected with the planetary gear 123. When the main wheel 11 rotates, the planetary gear 123 is driven to rotate by the gear on the main wheel circular groove 111 wall, and then The driving wheel brush 13 rotates.

The above description is exemplary only, and not restrictive. Any equivalent modification or change made without departing from the spirit and scope of the present invention shall be included in the scope of the attached patent application.

1‧‧‧ wheel brush broom
10‧‧‧ body
101‧‧‧Main round frame
102‧‧‧ support structure
103‧‧‧ Main wheel cantilever axle
11‧‧‧ main round
111‧‧‧ round groove for main wheel
12‧‧‧Built-in gear set
121‧‧‧Outer ring ratchet
122‧‧‧Inner ring ratchet
123‧‧‧ planetary gear
13‧‧‧wheel brush
131‧‧‧wheel brush bushing
14‧‧‧ shovel
15‧‧‧ Dust box
16‧‧‧Put

The first diagram is an external perspective view of the present invention; the second diagram is an exploded view of the structure of the present invention; the third diagram is a sectional perspective view of the present invention; the fourth diagram is a forward rotation operation diagram of the two-way ratchet structure of the present invention; the fifth diagram The operation diagram of the reversing ratchet structure of the present invention; the sixth diagram is the operation diagram of the one-way ratchet structure of the present invention; the seventh diagram is the operation diagram of the planetary gear of the present invention.

1‧‧‧ wheel brush broom

10‧‧‧ body

101‧‧‧Main round frame

102‧‧‧ support structure

103‧‧‧ Main wheel cantilever axle

11‧‧‧ main round

111‧‧‧ round groove for main wheel

12‧‧‧Built-in gear set

121‧‧‧Outer ring ratchet

122‧‧‧Inner ring ratchet

123‧‧‧ planetary gear

13‧‧‧wheel brush

131‧‧‧wheel brush bushing

14‧‧‧ shovel

15‧‧‧ Dust box

16‧‧‧Put

Claims (4)

A wheel brush type broom comprises: a body including a main wheel frame on each side and a supporting structure for fixing the main wheel frames on both sides; two main wheel cantilevered axles, which are rigid cylindrical bodies, fixed to the main wheels on both sides At the center of the wall of the wheel frame; two main wheels, which are hollow round grooves, are set in the main wheel frames on both sides, and the center is connected to the main wheel cantilever axle; two built-in gear sets are set in the main wheel round grooves on both sides ; Two wheel brush bushings, the hubs of which are each connected to the planetary gear shafts of the built-in gear sets on both sides; one wheel brush, the two ends of which are connected to the wheel brush bushings on both sides; one blade, A flexible sheet is arranged on the lower edge of the body, near the intersection of the wheel brush and the ground; a dust box is an open hollow container on one side, and is connected to the rear side of the body by a movable joint. A push rod is a retractable hollow rod and is connected to the center of the support structure of the body with a movable joint. As described in item 1 of the scope of patent application, when the built-in gear set is a two-way ratchet structure, a set of outer ring ratchets, a set of inner ring ratchets, and a planetary gear are set in the round groove of the main wheel; the outer edge of the outer ring ratchet is shaped as a ratchet. Connected to the outer groove wall of the main wheel, the inner edge of which is connected to the planetary gear with a gear shape; the inner edge of the inner ring ratchet is connected to the inner groove wall of the main wheel with a ratchet shape, and the outer edge is connected to the planet gear with a gear shape; The shaft center is connected with the wheel brush shaft sleeve. As described in item 1 of the scope of patent application, when the built-in gear set is a unidirectional ratchet structure, a set of outer ring ratchets and a planetary gear are set in the round groove of the main wheel; the outer edge of the outer ring ratchet is ratcheted with the outer groove of the main wheel. The wall is connected, the inner edge of which is connected with the planetary gear in a gear shape; the axis of the planetary gear is connected with the wheel brush shaft sleeve. As described in item 1 of the scope of patent application, when the internal gear set is a planetary gear, a planetary gear is set in the hollow circular groove of the main wheel, and the wall of the main wheel circular groove is made into a gear shape, which is fitted with the planetary gear, and the planetary gear The shaft center is connected with the wheel brush shaft sleeve.