WO2009026756A1

WO2009026756A1 - Cleaner brush

Info

Publication number: WO2009026756A1
Application number: PCT/CN2007/003298
Authority: WO
Inventors: Chunfang Sun
Original assignee: Chunfang Sun
Priority date: 2007-08-25
Filing date: 2007-11-21
Publication date: 2009-03-05
Also published as: CN201119844Y

Abstract

A cleaner brush includes a brush body (1) and a pipe connector (2) disposed on said brush body (1). Said brush body (1) is in fluid communicated with said pipe connector (2). Said pipe connector (2) is configured to rotate in the horizontal surface relative to said brush body (1).

Description

Vacuum cleaner brush

The invention relates to a brush for a vacuum cleaner. Background technique

Conventional vacuum cleaner brushes are generally composed of a ground brush body and a pipe joint. As shown in Fig. 8, a support member is fixed to the ground brush body, and one end portion of the pipe joint is connected to the support member. Generally, the ground brush body is substantially rectangular. When the brush of the vacuum cleaner is in operation, the brush body is longitudinally advanced in the width direction for cleaning. Since the lateral dimension of the ground brush body is relatively large, the encounter is relatively small. In the area, the ground brush body can be difficult to enter the area in the longitudinal direction. To do this, in order to clean the narrow area, it is necessary to replace the ground brush with a smaller lateral size for cleaning. Because of this, many vacuum cleaners need to use multiple brushes to accommodate different sizes of cleaning areas. This not only increases the manufacturing cost of the vacuum cleaner, but also takes time for the operator to replace it during use, which also greatly reduces the operator's work efficiency. Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a dust-removing floor brush which is rotatable in a horizontal plane with respect to a grounding brush body, and which is capable of not only longitudinally advancing for cleaning but also laterally advancing cleaning of a narrow area.

In order to achieve the above object, the present invention adopts the following technical solution: a brush for a vacuum cleaner, comprising a ground brush body, a pipe joint disposed on the ground brush body, and the airflow of the ground brush body and the pipe joint In communication, the pipe joint is configured to be rotatable relative to the ground brush body in a horizontal plane.

The ground brush body is provided with a support member rotatable relative to the ground brush body in a horizontal plane, and the support member is in airflow communication with the ground brush body; one end of the pipe joint The portion is connected to the support member.

The support member is provided with a moving wheel.

The shaft of the ground brush body is provided with a shaft hole whose axis is perpendicular to a horizontal plane, and the support member is fixedly provided with a rotating shaft matched with the shaft hole, and the rotating shaft is inserted in the shaft An air flow passage is defined in the rotating shaft, and the ground brush body and the support member communicate with each other through the air flow passage.

One end of the rotating shaft passes through the shaft hole and is located in the ground brush body, the end portion There is a protruding ring on the inner wall surface of the ground brush body.

Due to the above technical solution, the present invention achieves the following advantages: the pipe joint is arranged to be rotatable relative to the ground brush body in a horizontal plane, so that when a corner or a narrow corner is encountered, the pipe joint can be rotated by a certain angle, so that the ground The brush body can be cleaned laterally. Since most of the brush body has a longitudinal dimension that is much smaller than the lateral dimension, the brush body can be cleaned along the lateral direction into a narrow area. In addition, when cleaning the corners, it is not necessary to use a separate brush, so that it can be easily cleaned, so that the dust can be thoroughly cleaned without replacing the brush. DRAWINGS

Figure 1 is a perspective view of the brush of the vacuum cleaner of the present invention (the pipe joint is in the first working position); Figure 2 is an enlarged cross-sectional view taken along line A-A of Figure 1;

Figure 3 is an enlarged cross-sectional view taken along line B-B of Figure 1;

Figure 4 is still another perspective view of the brush of the vacuum cleaner of the present invention (the pipe joint is in the second working position); Figure 5 is an enlarged cross-sectional view taken along line C-C of Figure 4;

Figure 6 is an enlarged cross-sectional view taken along line D-D of Figure 4;

Figure 7 is a third perspective view of the brush of the vacuum cleaner of the present invention (the pipe joint is in the third working position); Figure 8 is a plan view of the brush of the background vacuum cleaner;

Among them: 1, the ground brush body; 2, pipe joints; 3, support members; 4, moving wheels; 5, shaft holes; 6, rotating shaft; 7, air flow passage; 8, connecting portion; 9, convex ring; Wall; 12, side wall; 13, extension; 14, inner cavity; 131, air flow channel. detailed description

Referring to the vacuum cleaner brush shown in FIGS. 1-7, the ground brush has a rectangular brush body 1 formed by the upper wall 11 and the side wall 12 located around the upper wall, and is disposed on the ground brush body 1 and The pipe joint 2 rotating in the horizontal plane relative to the ground brush body 1 , the lower bottom of the ground brush body 1 usually has a dust suction port (not shown), and the pipe joint 2 is used for connecting the dust suction pipe (in the figure) To draw).

The structure of each component is brushed in detail below:

As shown in FIG. 2 and FIG. 6, the upper wall 11 of the ground brush body 1 has an extending portion 13 extending outwardly and hollow inside. The inside of the extending portion 13 forms an air flow passage 131, and the air flow passage 131 and the ground brush body 1 The inner chamber 14 is in airflow communication so that the dust-containing airflow sucked from the suction port at the lower bottom of the ground brush body 1 can flow into the air flow passage 131. As shown in Figures 1, 3 and 5, a hollow support member 3 is provided below the extension portion 13, which serves to indirectly connect the ground brush body 1 to the pipe joint 2 and to communicate with the air flow. As shown, the support member 3 has a hollow connecting portion 8 for connection with the pipe joint 3, and the pipe joint 8 is sleeved with the connecting portion 8, usually, in order to enable the user to vacuum The wrist tube 8 is rotated relative to the connecting portion 8 by a certain angle with respect to the connecting portion 8 at a certain angle for the comfort of the wrist. The ground brush body 1 is provided with a shaft hole 5 perpendicular to the horizontal plane on the lower wall surface of the extending portion 13. The support member 3 is fixed with a rotating shaft 6 matched with the shaft hole 5, and the rotating shaft 6 is rotatably inserted into the shaft. In the hole 5, the rotating shaft 6 can drive the support member 3 to rotate in a horizontal plane about the axis of the shaft. The rotating shaft 6 is provided with an air flow passage 7 which allows the air flow passage 131 on the extending portion 13 and the inside of the support member 3. In connection with each other, a hermetic seal is usually required between the shaft 6 and the shaft hole 5. In order to prevent the rotating shaft 6 from slipping out of the shaft hole 5, the rotating shaft 6 is provided with a radially protruding section 9 on the one end portion of the extending portion 13 passing through the shaft hole 5, and the convex ring 9 is hooked to the ground brush. The inner wall surface of the body 1.

Since the pipe joint 2 is connected to the support member 3, the pipe joint 2 connected to the support member 3 can also be rotated together in the horizontal plane, so that the operator is rotationally fixedly connected to the pipe joint 2 when in use. The dust suction pipe can conveniently control the brush body 1 to move longitudinally or laterally. The direction indicated by the arrow in Fig. 2 is the flow direction of the dust-containing airflow.

As shown in the figure, the support member 3 is further provided with a pair of moving wheels 4, which can conveniently brush the movement of the body 1.

In this embodiment, three working positions of the pipe joint 2 are shown in the drawing, as shown in Fig. 1, at this time, the pipe joint 2 is in the first working position, and the pipe joint 2 drives the brush body 1 to move longitudinally, so that Quickly clean large areas of barrier-free areas; as shown in Figures 4 and 7, at this point, the fitting 2 is in the second and third working positions, which is rotated 90 degrees clockwise or counterclockwise relative to the first working position. At this time, the pipe joint 2 can move the brush body 1 laterally, so that it can smoothly enter a narrow area for cleaning.

Claims

Rights request:

A brush for a vacuum cleaner, comprising a ground brush body (1), a pipe joint (2) disposed on the ground brush body (1), the ground brush body (1) and the pipe joint (2) Phase gas flow communication, characterized in that: the pipe joint (2) is arranged to be rotatable relative to the ground brush body (1) in a horizontal plane.

2. A brush for a vacuum cleaner according to claim 1, wherein: said ground brush body (1) is provided with a support member (3) rotatable relative to said ground brush body (1) in a horizontal plane (3) And the support member (3) is in airflow communication with the ground brush body (1); one end portion of the pipe joint (2) is connected to the support member (3).

3. A brush for a vacuum cleaner according to claim 2, characterized in that: the support member (3) is provided with a moving wheel (4).

The brush of the vacuum cleaner according to claim 2, wherein: the wall of the ground brush body (1) is provided with a shaft hole (5) whose axis is perpendicular to a horizontal plane, and the support member ( 3) a rotating shaft (6) matched with the shaft hole (5) is fixedly fixed, and the rotating shaft (6) is inserted into the shaft hole (5), and the rotating shaft (6) is opened. There is an air flow passage (7), and the ground brush body (1) and the support member (3) communicate with each other through the air flow passage (7).

The brush of the vacuum cleaner according to claim 4, wherein: one end of the rotating shaft (6) passes through the shaft hole (5) and is located in the ground brush body (1), The end portion has a radial convex ring (9), and the convex ring (9) is hooked on the inner wall surface of the ground brush body (1).