CN101152066B - Duct collector head and electric dust collector using the same - Google Patents

Abstract

The present invention provides a vacuum cleaner head with high-efficiency rotation of first and second rotating brushes and excellent dust removal performance, and an electric vacuum cleaner using the same. The dust suction head of the present invention is provided with: a first rotating brush (30) that is rotationally driven by a drive source (36) and is provided with a first cleaning sheet (31) along the lengthwise direction on the circumferential surface; A rotating brush is arranged in parallel, driven by the first rotating brush, and a second rotating brush (33) is provided with a second cleaning sheet (34) along the length direction on the circumferential surface. During rotation, the contact resistance between the second cleaning sheet and the dust-suctioned surface is set to be smaller than the contact resistance between the first cleaning sheet and the dust-suctioned surface. In this way, the load applied to the second rotating brush can be reduced, and the load applied to the first rotating brush that drives the second rotating brush can also be reduced, and the first and second rotating brushes can rotate efficiently, improving the dust removal performance. can be greatly improved.

Description

Vacuum cleaner head and electric vacuum cleaner using the head

technical field

The invention relates to a vacuum cleaner head and an electric vacuum cleaner using the dust head.

Background technique

Existing vacuum cleaner head generally has a rotating brush driven by a motor etc., the outer surface of the rotating brush is provided with a cleaning piece extending along the length direction, and the dust on the surface to be vacuumed is swept up by the cleaning piece. However, if there is only one rotating brush, the surface to be vacuumed cannot be cleaned sufficiently, so someone has made an invention of setting two parallel rotating brushes. However, if two motors are provided to rotate the two rotating brushes separately, the head of the vacuum cleaner will become heavy and the convenience of handling will also deteriorate.

Therefore, someone has developed a vacuum cleaner head that drives a plurality of rotating brushes to rotate with one motor. 56-069378). Wherein, the structure of the vacuum cleaner head 50 disclosed in JP 2003-125991 is shown in Figure 11: that is, a first rotating brush 53 and a second rotating brush 55 are arranged in parallel, and the first rotating brush 53 is activated by a motor 51. It is driven to rotate, and a cleaning piece 52 is arranged on the outer peripheral surface. Similarly, a cleaning sheet 54 is also provided on the outer peripheral surface of the second rotating brush 55 . There is an overlapping portion between the cleaning sheet 52 and the cleaning sheet 54 , which transmits the rotational force of the first rotating brush 53 to the second rotating brush 55 , so that the second rotating brush 55 also rotates.

But, adopt the structure in the above-mentioned vacuum cleaner dust head 50, especially when cleaning the carpet, because the cleaning piece 54 of the second rotating brush 55 that rotates under the drive of the first rotating brush 53 protrudes more than the first. The protrusion of the cleaning piece 52 of the rotating brush 53 is short, so the middle section of the cleaning piece 54 will become very hard.

In addition, if the cleaning piece 54 gets stuck into the carpet, a large load will be applied to the second rotating brush 55, resulting in a decrease in the rotation ability of the first rotating brush 53 that drives it to rotate. The electric motor 51 also produces a relatively large load, so problems such as overheating and burning of the electric motor 51 also occur.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned problems in the prior art, and its purpose is to provide a vacuum cleaner head with high-efficiency rotation of the first and second rotating brushes and excellent dust removal performance, and a vacuum cleaner head using the same. electric vacuum cleaner.

In order to solve the above-mentioned problems in the prior art, the vacuum cleaner head described in Embodiment 1 of the present invention includes: a first rotating brush with a first cleaning sheet arranged on the circumferential surface along the length direction; The driving source that the rotating brush rotates; and the second rotating brush that is arranged in parallel with the first rotating brush, is driven to rotate by the first rotating brush, and is provided with a second cleaning piece along the length direction on the circumferential surface, and rotates At this time, the contact resistance between the second cleaning sheet and the surface to be vacuumed is set to be smaller than the contact resistance between the first cleaning sheet and the surface to be vacuumed. In this way, the load applied to the second rotating brush can be reduced, thereby reducing the load applied to the first rotating brush that rotates and drives the second rotating brush, and the first and second rotating brushes can rotate efficiently, improving the dust removal performance. can be greatly improved.

The vacuum cleaner head described in Embodiment 2 of the present invention includes: a first rotating brush provided with a first cleaning sheet along the lengthwise direction on the circumferential surface; a driving source for rotating and driving the first rotating brush; The first rotating brush is arranged in parallel, is driven to rotate by the first rotating brush, and at the same time, a second rotating brush with a second cleaning piece is provided on the circumferential surface along the length direction, and the protrusion amount of the second cleaning piece is set. It is set to be longer than the protrusion of the first cleaning sheet. In this way, because the protrusion of the second cleaning sheet of the second rotating brush is relatively long, the middle section of the second cleaning sheet becomes soft, and it is easy to bend even on the carpet, so that the load applied to the second rotating brush is reduced, thereby The load applied to the first rotating brush that rotationally drives the second rotating brush can also be reduced, the first and second rotating brushes can rotate efficiently, and the dust removal performance can be greatly improved.

The cleaning head of the vacuum cleaner described in Embodiment 3 of the present invention includes: a first rotating brush with a first cleaning piece arranged on the circumferential surface along the length direction; a driving source for rotating and driving the first rotating brush; The first rotating brush is arranged in parallel, is driven by the rotation of the first rotating brush, and at the same time, a second rotating brush with a second cleaning sheet is provided on the circumferential surface along the length direction, and the first cleaning sheet and the second cleaning sheet are respectively It consists of many fibers, and the thickness of the fibers in the second cleaning sheet is set to be thinner than the fibers in the first cleaning sheet. In this way, the fibers of the second cleaning sheet constituting the second rotating brush are thinner, so the middle section of the second cleaning sheet becomes soft, and it is easy to bend even on the carpet, so that the load applied to the second rotating brush can be reduced, thereby applying The load on the first rotating brush that rotates the second rotating brush can also be reduced, the first and second rotating brushes can rotate efficiently, and the dust removal performance can be greatly improved.

The vacuum cleaner head described in Embodiment 4 of the present invention includes: a first rotating brush provided with a first cleaning sheet along the lengthwise direction on the circumferential surface; a driving source for rotating the first rotating brush; The first rotating brush is arranged in parallel, is driven by the rotation of the first rotating brush, and at the same time, a second rotating brush with a second cleaning sheet is provided on the circumferential surface along the length direction, and the first cleaning sheet and the second cleaning sheet are respectively It consists of many fibers, and the number of fibers in the second cleaning sheet is set to be smaller than the number of fibers in the first cleaning sheet. In this way, the number of fibers of the second cleaning sheet constituting the second rotating brush is small, and the middle section of the second cleaning sheet becomes soft, and it is easy to bend even on a carpet, so that the load applied to the second rotating brush can be reduced, thereby applying The load on the first rotating brush that rotates the second rotating brush can also be reduced, the first and second rotating brushes can rotate efficiently, and the dust removal performance can be greatly improved.

The vacuum cleaner head described in Embodiment 5 of the present invention includes: a first rotating brush provided with a first cleaning sheet along the lengthwise direction on the circumferential surface; a driving source for rotating the first rotating brush; and The first rotating brush is arranged in parallel, is driven by the rotation of the first rotating brush, and at the same time, a second rotating brush with a second cleaning sheet is provided on the circumferential surface along the length direction, and the first cleaning sheet and the second cleaning sheet are respectively It is composed of many fibers, and the fibers of the second cleaning sheet are intermittently arranged at intervals along the length direction of the second rotating brush. In this way, since the second cleaning sheets of the second rotating brush are intermittently arranged at intervals along the length direction, the middle section of the second cleaning sheets becomes soft and is easy to bend even on a carpet, so that the load applied to the second rotating brush can be reduced. This can reduce the load on the first rotating brush that rotates the second rotating brush, thereby reducing the load, allowing the first and second rotating brushes to rotate efficiently, and greatly improving the dust removal performance.

In the vacuum cleaner head described in Embodiment 6 of the present invention, the protruding amount of the second cleaning sheet is set to be longer than that of the first cleaning sheet, so that the second cleaning sheet and the second cleaning sheet are rotated. The contact resistance of the surface to be vacuumed is set to be smaller than the contact resistance of the first cleaning sheet and the ground to be cleaned. In this way, the protrusion amount of the second cleaning sheet of the second rotating brush is longer, so the middle section of the second cleaning sheet becomes soft, and it is easy to bend even on a carpet, so that the load applied to the second rotating brush can be reduced, thereby The load applied to the first rotating brush that rotates the second rotating brush can also be reduced, the first and second rotating brushes can rotate efficiently, and the dust removal performance can be greatly improved.

Embodiment 7 of the present invention is specifically that the first cleaning sheet and the second cleaning sheet in Embodiment 1 or 6 are respectively composed of many fibers, and the thickness of the fibers of the second cleaning sheet is set to be smaller than the The thickness of the fiber of the first cleaning piece is fine, so that the contact resistance between the second cleaning piece and the surface to be vacuumed is set to be smaller than the contact resistance between the first cleaning piece and the ground to be cleaned during rotation. In this way, the fibers of the second cleaning sheet constituting the second rotating brush are thinner, so the middle section of the second cleaning sheet becomes soft, and it is easy to bend even on the carpet, so that the load applied to the second rotating brush can be reduced, thereby applying The load on the first rotating brush that rotates the second rotating brush can also be reduced, the first and second rotating brushes can rotate efficiently, and the dust removal performance can be greatly improved.

Embodiment 8 of the present invention is that the first cleaning sheet and the second cleaning sheet described in Embodiment 1, 6 or 7 are respectively composed of many fibers, and the number of fibers in the second cleaning sheet is set to The number of fibers in the first cleaning sheet is smaller than that of the first cleaning sheet, so that the contact resistance between the second cleaning sheet and the surface to be cleaned during rotation is set to be smaller than the contact resistance between the first cleaning sheet and the ground to be cleaned. In this way, the number of fibers of the second cleaning sheet constituting the second rotating brush is small, and the middle section of the second cleaning sheet becomes soft, and it is easy to bend even on a carpet, so that the load applied to the second rotating brush can be reduced, thereby applying The load on the first rotating brush that rotates the second rotating brush can also be reduced, the first and second rotating brushes can rotate efficiently, and the dust removal performance can be greatly improved.

In Embodiment 9 of the present invention, the first cleaning sheet and the second cleaning sheet described in Embodiment 1, 6, 7 or 8 are respectively composed of many fibers, and the fibers of the second cleaning sheet are along the second The rotating brushes are intermittently arranged at intervals in the length direction, so that the contact resistance between the second cleaning piece and the surface to be cleaned is set to be smaller than the contact resistance between the first cleaning piece and the ground to be cleaned during rotation. In this way, since the second cleaning sheets in the second rotating brush are intermittently arranged at intervals along the length direction, the middle section of the second cleaning sheets becomes soft, and it is easy to bend even on the carpet, so that the load applied to the second rotating brush This can reduce the load on the first rotating brush that rotates the second rotating brush, thereby reducing the load, allowing the first and second rotating brushes to rotate efficiently, and greatly improving the dust removal performance.

Embodiment 10 of the present invention is that the first rotating brush described in any one of Embodiments 1 to 9 is arranged on the front side, and the second rotating brush is arranged on the rear side; The advancing direction of the dust head body rotates, and the second rotating brush rotates in a direction opposite to the rotating direction of the first rotating brush. In this way, due to the rotation of the first rotating brush driven by the driving source, the force to move forward can be efficiently and strongly exerted on the cleaning head body, and the vacuum cleaner can be easily operated especially on carpets. At the same time, the dust on the surface to be cleaned can be swept between the first and second rotating brushes through the second rotating brush arranged at the rear and rotating in the opposite direction, so that the dust will not leak outside , can be reliably drawn up.

Embodiment 11 of the present invention is that the first rotating brush described in any one of Embodiments 1 to 9 is arranged on the rear side, and the second rotating brush is arranged on the front side; when vacuuming, the first rotating brush moves forward with the body The second rotating brush rotates in the opposite direction to the rotating direction of the first rotating brush. In this way, when the surface to be vacuumed is a carpet, the first rotating brush driven by the driving source can reliably sweep the dust on the surface to be cleaned between the first rotating brush and the second rotating brush, so that the dust will not leak to the Outside, it can be reliably attracted, and at the same time, the middle section of the second cleaning sheet can be weakened, and it is easy to bend even if it touches the surface of the carpet, and it will not inhibit the rotation of the first rotating brush that drives the second rotating brush to rotate . On the other hand, when the surface to be vacuumed is a wooden floor, etc., since the first cleaning piece in the first rotating brush receives a relatively low load from the surface to be vacuumed, the first rotating brush can rotate strongly, so the second Two rotating brushes can also rotate efficiently. In this way, the dust on the surface to be vacuumed can be gathered between the second rotating brush and the first rotating brush, and the effect of wiping and polishing the ground can also be fully exerted.

The electric vacuum cleaner described in Embodiment 12 of the present invention includes: an electric blower; and the vacuum cleaner head according to any one of Embodiments 1-11. By adopting a vacuum cleaner head excellent in dust removal performance, it is possible to provide an electric vacuum cleaner excellent in operability and dust removal performance.

The technical effects produced by the present invention are as follows. The suction head of the vacuum cleaner and the electric vacuum cleaner of the present invention can rotate the first and second rotating brushes with high efficiency, and have excellent dust removal performance.

Description of drawings

Fig. 1 is the overall oblique view of the electric vacuum cleaner equipped with the vacuum cleaner suction head in the first embodiment of the present invention,

Figure 2 is a side view of the appearance of the vacuum cleaner head in the first embodiment of the present invention,

Fig. 3 is a top view of the vacuum cleaner head in the first embodiment of the present invention when the upper cover is removed,

Fig. 4 is the back view of the cleaning head of the vacuum cleaner in the first embodiment of the present invention,

Fig. 5 is a cross-sectional view of the vacuum cleaner head in the first embodiment of the present invention,

Fig. 6 is an enlarged cross-sectional view of the first and second rotating brushes in the cleaning head of the vacuum cleaner in the first embodiment of the present invention,

Fig. 7 is a partial cross-sectional view of the dust-absorbing head of the vacuum cleaner in the first embodiment of the present invention when performing dust-absorbing operation on the surface to be vacuumed, wherein Fig. 7(a) shows the situation that the surface to be vacuumed is a wooden floor, What Fig. 7 (b) represented is the situation that the vacuumed surface is a carpet,

Fig. 8 is a plan view of the dust head of the vacuum cleaner in the second embodiment of the present invention when the upper cover is removed,

Fig. 9 is a rear view of the cleaning head of the vacuum cleaner in the second embodiment of the present invention,

Fig. 10 is a cross-sectional view of the cleaning head of the vacuum cleaner in the third embodiment of the present invention,

Fig. 11 is a sectional view of a suction head of a conventional vacuum cleaner.

Among the above-mentioned accompanying drawings, 16 is a vacuum cleaner suction head, 30 is a first rotating brush, 31 is a first cleaning sheet, 33 is a second rotating brush, 34 is a second cleaning sheet, and 36 is a motor (drive source).

Detailed ways

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the technical scope of the present invention is not limited by these examples.

(Example 1)

The vacuum cleaner head 16 in Embodiment 1 of the present invention will be described in detail below using FIGS. 1 to 7 . Fig. 1 is an overall oblique view of an electric vacuum cleaner equipped with a vacuum cleaner head in this embodiment.

As shown in FIG. 1 , the rear portion of the vacuum cleaner body is provided with an electric fan chamber 3 with a built-in electric fan 2 , and a dust collection chamber 4 is provided at the front portion. The dust collecting chamber 4 is provided with a detachable dust collecting bag (not shown) for catching/collecting the inhaled dust, and communicates with the suction port of the electric blower 2 at the same time. A pair of freely rotatable traveling wheels 6 are arranged on the left and right sides of the rear bottom of the vacuum cleaner body 1, and the traveling wheels 6 are mounted on horizontally arranged traveling wheel shafts. The bottom front of the vacuum cleaner body 1 is provided with a universal wheel 7 which is also used for walking. The universal wheel 7 can not only rotate freely around the vertical axis, but also freely rotate relative to the horizontally arranged walking axis. The front part of the vacuum cleaner body 1 is provided with a suction port 10, and the connecting pipe 9 arranged at one end of the suction hose 8 is connected to the suction port 10 in a detachable manner. The suction port 10 is also connected with the dust collection chamber 4 connected.

The other end of the suction pipe 8 is provided with a top pipe 12 , the top pipe 12 is provided with a handrail 11 for the operator to grasp when vacuuming, and the handrail 11 is provided with an operation part 11 a for operating the vacuum cleaner body 1 . The top end pipe 12 of the suction hose 8 is connected with one end of the armrest side in the extension pipe 13 that can be retracted or freely lengthened in a detachable manner, and the other end of the extension pipe 13 is connected with a detachable manner. The vacuum cleaner suction head 16 in this embodiment.

A buffer device 17 made of elastic material is provided on the surface from the front to both sides of the vacuum cleaner body 1 . In this way, even if the cleaner body 1 collides with furniture, pillars, etc. during walking, it will not be damaged. The rear side of the top surface of the vacuum cleaner body 1 is provided with a body handle 18 that can be pulled up/pressed down for use when lifting/moving the vacuum cleaner body 1 .

The detailed structure of the vacuum cleaner head 16 in this embodiment will be described below using FIGS. 2 to 6 . Fig. 2 is a perspective view of the appearance of the dust head of the vacuum cleaner in the first embodiment of the present invention, Fig. 3 is a top view of the dust head of the vacuum cleaner when the upper cover is removed, and Fig. 4 is seen from the bottom side of the dust head of the vacuum cleaner Fig. 5 is a side sectional view of the above-mentioned vacuum cleaner head, and Fig. 6 is an enlarged sectional view of the first and second rotating brushes in the vacuum cleaner head. In each figure after Fig. 2, the walking direction of the vacuum cleaner head 16 is specified as follows: the direction (advancing direction) in which the operator holds the handrail 11 and pushes the vacuum cleaner head 16 forward is called the front or the front side. (lower left direction in FIG. 2 ), the direction (backward direction) in which the operator pulls back the cleaning head 16 of the vacuum cleaner is called rear or rear side (upper right direction in FIG. 2 ).

As shown in FIG. 2 and FIG. 3 , the cleaning head box 20 of the cleaning head 16 of the vacuum cleaner is composed of an upper cover 20 a and a lower cover 20 b with an opening 21 on the bottom surface. A connecting pipe 23 that can swing up and down is provided at the rear center of the upper cover 20a, and the top end of the above-mentioned extension pipe 13 is detachably engaged/fixed on the open end of the connecting pipe 23 . In addition, a cleaning head buffer device 22 made of elastic materials such as polyurethane resin is provided on the outer edge of the lower cover 20b, which can play a role in easing the impact when it encounters objects such as furniture (not shown in the figure) .

In addition, as shown in Figure 4, a pair of rotatable front wheels 24 for walking are installed on the front left and right sides of the bottom surface of the lower cover 20b, and a pair of rotatable rear wheels 24 also for walking are installed on the rear left and right sides. round 25. A heave-type safety switch 26 that can protrude/indent is installed on the rear of the opening 21. The function of the heave-type safety switch 26 is as follows: when it is in contact with the surface to be vacuumed, it is in a state of falling down in the installation pit, At this time, if the operator operates the operating part, the first and second rotating brushes 30, 33 in the vacuum cleaner head 16 will rotate; In the state of standing up from the recessed portion, the first and second rotating brushes 30 and 33 do not rotate even if the operator operates the operation portion 11a at this time.

As shown in FIG. 5 , the front portion of the vacuum cleaner head 16 is provided with a rotating brush chamber 27 in the range from the opening 21 to the upper part of the vacuum cleaner head 16 to form a storage space for the rotating brush. The rear side of the rotating brush chamber 27 communicates with the connecting pipe 23, the first rotating brush 30 is installed on the front side, and the second rotating brush 33 parallel to the first rotating brush 30 is installed on the back of the first rotating brush 30. The first rotating brush 30 and the second rotating brush 33 are rotatable with respect to the cleaner head 16 and are supported by a shaft perpendicular to the front-rear direction of the cleaner head 16 .

The first rotating brush 30 is provided with: extending in a direction perpendicular to the advancing and retreating direction of the vacuum cleaner head 16, the length is set to be substantially the same as the left and right width of the opening 21, and the cross-sectional shape is approximately circular. The length is set to be substantially the same as that of the shaft member 32 , and a plurality of (eight in this embodiment 1) first cleaning sheets 31 are inserted on the shaft member 32 .

As shown in Fig. 6, a plurality of (8 in the present embodiment 1) grooves 32a are formed on the outer surface of the shaft core member 32 along the length direction, and the side walls facing each other near the opening portion of these grooves 32a The opening width of the groove 32a is narrowed by bulging toward the other facing side wall surface. A space in which the root end portion 31a of the first cleaning sheet 31 is inserted is formed from the opening to the shaft center side.

The first cleaning sheet 31 includes a root end portion 31a and a fibrous portion 31b composed of a large number of fibers fluffed (flocked) on the root end portion 31a. The root end portion 31a of the first cleaning sheet 31 is guided to be inserted/assembled into the root end portion storage space formed in the groove 32a of the shaft member 32, and the fibrous portion 31b of the first cleaning sheet 31 starts from the shaft center. The groove 32a of the part 32 protrudes to the outside.

The structure of the second rotating brush 33 is similar to that of the first rotating brush 30, and it is also provided with: extending in a direction perpendicular to the direction of advance and retreat of the vacuum cleaner head 16, the length is set to be substantially the same as the left and right width of the opening 21 and the cross-section A shaft part 35 whose shape is roughly circular; and a plurality of (8 in the present embodiment 1) second cleaning sheets 34 whose length is set to be substantially the same as that of the shaft part 35 and inserted on the shaft part 35 .

The outer surface of the shaft member 35 is provided with a plurality of (eight in the present embodiment 1) grooves 35a along the length direction, and the opposite side walls near the opening portion of these grooves 35a face the opposite side The side wall surface bulges to narrow the opening width of the groove 35a to form a space that expands from the opening to the axis and accommodates the root end portion 34a of the second cleaning sheet 34 . The second cleaning sheet 34 includes: a root end portion 34a; and a fibrous portion 34b composed of many fibers that are bristled on the root end portion 34a. The root end portion 34 a of the second cleaning sheet 34 is guided to be inserted/assembled into the root end portion receiving space formed in the groove 35 a of the shaft member 35 . The fibrous portion 34b of the second cleaning sheet 34 protrudes from the groove 35a of the shaft member 35 to the outside.

Thus, by inserting the root end portion 31 a of the first cleaning sheet 31 into the groove 32 a of the shaft member 32 , it can be easily attached to the shaft member 32 of the first rotating brush 30 . In addition, when replacement is required, it can be easily removed from the shaft member 32 by simply pulling it out from the groove 32a. The same applies to the second cleaning blade 34 of the second rotating brush 33 .

And, as shown in FIG. 6, the amount of protrusion (L2) of the fibrous portion 34b of the second cleaning sheet 34 from the groove 35a in Example 1 is set to be larger than that of the fibrous portion 31b of the first cleaning sheet 31 from the groove 32a. The amount of protrusion (L1) should be long.

The following describes the rotation driving mechanism that drives the first rotating brush 30 and the second rotating brush 33 to rotate through the motor.

As shown in Figure 3, the rear side of the rotary brush 27 in the dust collector head 16 is equipped with a motor 36, and the motor 36 is used to drive the first rotary brush 30 to rotate in the forward direction, that is, to drive the first rotary brush 30 to suck the vacuum cleaner. A driving source for rotating the forward direction of the dust head 16 .

One end (right side end) of the first rotating brush 30 is fixed with a pulley 37 having a concave-convex outer surface, and one end (right side end) of the second rotating brush 33 is fixed with an axis supporting member 40a. The rotating shaft (not shown) extending toward the left end of the pulley 37 is rotatably supported by the connection support member 41, and the connection support member 41 is also fixed to the second rotating brush 33 by the bearing portion 41a on one side. The shaft center supporting member 40a on the second rotating brush 33 is supported in a rotatable manner, so that the first rotating brush 30 and the second rotating brush 33 are spaced apart by the above-mentioned connecting support material 40a at a certain distance, and are rotatably supported. The state is fixed on the appropriate position of the left end in the loam cake 20a of vacuum cleaner suction head 16. In addition, the other end (left end) of the first rotating brush 30 and the other end (left end) of the second rotating brush 33 are respectively fixed with shaft center support members 40b, 40c, and the shaft center support member 40b , 40c are fixed at an appropriate position on the left end of the upper cover 20a of the dust collector head 16 of the vacuum cleaner in a rotatable support state at a certain interval through the connecting bearing material 42 .

In this way, the rotation of the motor 36 (rotation shaft 36a) is transmitted to the first rotation through the belt 38 mounted between the pulley 39 on the rotation shaft 36a of the motor 36 and the pulley 37 at the end of the first rotating brush 30. Brush 30 on. And, along with the rotation of the first rotating brush 30, the first cleaning sheet 31 stretches into the second rotating brush 33 where the second cleaning sheet 34 is not provided (the space between the plurality of second cleaning sheets 34), The second cleaning sheet 34 is pushed from the back side in the rotation direction, and the second rotating brush 33 is driven to rotate as the first rotating brush 30 rotates. In other words, driven by the rotation of the motor 36 , the first rotating brush 30 rotates in the forward direction of the vacuum cleaner head 16 , and the second rotating brush 33 rotates in the backward direction of the vacuum cleaner head 16 .

The operation and function of the vacuum cleaner head 16 and the electric vacuum cleaner (vacuum cleaner body 1) having the above constitution will be described below using FIG. 7 . Fig. 7 is a partial cross-sectional view of the dust-absorbing head of the vacuum cleaner according to the first embodiment of the present invention when performing a dust-absorbing operation on the surface to be vacuumed, wherein Fig. 7(a) is a case where the surface to be vacuumed is a wooden floor, and Fig. 7( b) is the case where the surface to be vacuumed is a carpet.

When cleaning dust, first pull out the power cord (not shown in the figure) from the vacuum cleaner body 1, insert the power plug (not shown in the figure) on the end of the line into the power socket in the room, and then The operation part 11 a on the armrest 11 is operated to energize the electric blower 2 and the motor 36 built in the cleaning head 16 of the vacuum cleaner. Like this, the suction force that electric blower 2 produces will act on the opening 21 that is arranged on the lower cover 20b bottom surface of vacuum cleaner suction head 16, and the dust on the dust-suction surface such as floor and carpet etc. will be sucked, and pass extension pipe 13 , The hose 8 is sent to the dust collection chamber 4, and is captured/collected in the dust collection chamber 4.

As shown in Figure 7 (a), when using the dust collector head 16 to vacuum the wooden floor or the tile floor, etc., the front wheel 24 and the rear wheel 25 that are arranged on the lower cover 20b of the dust collector head 16 will A predetermined gap can be secured between the bottom surface of the lower cover 20b and the surface to be vacuumed. When the surface to be vacuumed is a wooden floor or tiles, the load applied to the first cleaning sheet 31 of the first rotating brush 30 and the second cleaning sheet 34 of the second rotating brush 33 is relatively light. Both the second rotating brush and the second rotating brush 33 can rotate efficiently, effectively sweep away the dust on the surface to be vacuumed, and at the same time fully exert the effects of wiping and polishing.

On the other hand, when the vacuum cleaner head 16 is used to vacuum the carpet or the like, the front wheel 24 and the rear wheel 25 sink into the carpet as shown in Figure 7 (b), and the first rotating brush 30 will The cleaning sheet 31 will be in contact with the surface of the carpet. But because the first rotating brush 30 rotates in the forward direction under the drive of the motor 36, the vacuum cleaner head 16 will be applied to move forward, that is, the force on its own direction, so the user is also easy to use the vacuum cleaner head on the carpet. 16 to move forward. In addition, since the protrusion (L2) of the second cleaning piece 34 on the second rotating brush 33 in the present embodiment 1 is longer, the middle section is soft and easy to bend, so that the second cleaning piece 34 of the second rotating brush 33 Since it is easy to rotate, the rotation of the first rotating brush 30 is not inhibited.

In addition, when the vacuum cleaner head 16 has a self-propelled effect, it seems that it will cause a large burden on the user's hand when it is pulled back to the side, but in fact it is easy for people to use force when pulling the object. So don't pay too much attention to this.

If the present embodiment 1 is adopted, since the protrusion amount (L2) of the second cleaning piece 34 of the second rotating brush 33 is set to be higher than the protrusion amount (L1) of the first cleaning piece 31 of the first rotating brush 30 as described above, Long, so the contact resistance of the second cleaning sheet 34 and the dust-suctioned surface is smaller than that of the first cleaning sheet 31 and the dust-suctioned surface during rotation, and the middle section of the second cleaning sheet 34 is soft, so it is easy to clean on the carpet. Bending, like this, the load on the second rotating brush 33 can be reduced, and the load on the first rotating brush 30 that drives the second rotating brush 33 to rotate can also be reduced accordingly, so the first and second rotating brushes 30 , 33 can rotate with high efficiency, so that the dust removal performance is greatly improved.

In addition, since the first rotating brush 30 driven to rotate by the motor 36 is arranged on the front side, and the second rotating brush 33 is arranged on the rear side, the first rotating brush 30 is rotated in a direction in which the body is advanced during cleaning, and the second rotating brush 33 is arranged on the rear side. The second rotating brush 33 rotates in the direction opposite to the direction of rotation of the first rotating brush 30, so the power to move forward can be efficiently and powerfully acted on the vacuum cleaner head 16, so it can be used not only on carpets, but also on carpets. Easily operate the vacuum cleaner head 16, and the counter-rotating second rotating brush 33 can sweep the dust on the surface to be vacuumed between the first rotating brush 30 and the second rotating brush 33, so that the dust will not leak To the outside, can be reliably sucked up.

In addition, although the above-mentioned embodiment 1 enumerated the protruding amount (L2) of the second cleaning piece 34 in the second rotating brush 33, the middle section of the second cleaning piece 34 was softened to rotate easily on the carpet. However, it is also possible to make the first cleaning sheet 31 of the first rotating brush 30 and the second cleaning sheet 34 of the second rotating brush 33 consist of many fibers respectively, and the protruding amounts from the grooves 32a, 35a ( L1, L2) are set to be roughly the same, but the fibers of the second cleaning sheet 34 of the second rotating brush 33 are set to be thinner than the fibers in the first cleaning sheet 31 of the first rotating brush 30; or, the second The number of fibers in the second cleaning sheet 34 of the rotating brush 33 is set to be less than the number of fibers in the first cleaning sheet 31 of the first rotating brush 30, or the middle section of the second cleaning sheet 34 is set to be smaller than the number of fibers in the first cleaning sheet 31 of the first rotating brush 30. A first cleaning sheet 31 in a rotating brush 30 is soft. Even so, the contact resistance between the second cleaning sheet 34 and the surface to be vacuumed during rotation can be made smaller than the contact resistance between the first cleaning sheet 31 and the surface to be vacuumed, and the same effect can be obtained.

(Example 2)

Next, the vacuum cleaner head 16A in the second embodiment will be described using FIG. 8 and FIG. 9 . Fig. 8 is a plan view of the dust head of the vacuum cleaner according to the second embodiment of the present invention when the upper cover is removed, and Fig. 9 is a schematic bottom view of the dust head of the vacuum cleaner according to the second embodiment of the present invention. Wherein, the same symbols are used for the same parts as those in the above-mentioned embodiment 1, so repeated description thereof will be omitted here.

As shown in FIG. 8, in the vacuum cleaner head 16A of Embodiment 2, the fibrous portion 34b constituting the second cleaning piece 34 in the second rotating brush 33 is intermittently provided along the length direction of the second rotating brush 33, A plurality of intermittent fiber bundles 34c are formed. Moreover, the raised parts of the plurality of fiber bundles 34c on the plurality of second cleaning sheets 34 are staggered from each other, are not overlapped, and at the same time cover the entire length range of the second rotating brush 33 .

By using such a second cleaning sheet 34 to form the vacuum cleaner head 16A, it is easy to set the contact resistance between the second cleaning sheet 34 (fiber bundle 34c) and the surface to be vacuumed less than that of the first cleaning sheet 31 and the surface to be sucked when rotating. The contact resistance of the dust-absorbing surface; the middle section of the second cleaning sheet 34 is softened, and it is also easy to bend on the carpet, and the load applied to the second rotating brush 33 can be reduced, so that the force applied to the rotation of the second rotating brush 33 can be reduced. The load on the first rotating brush 30 can also be reduced, the first and second rotating brushes 30, 33 can also rotate efficiently, and the dust removal performance can also be greatly improved.

(Example 3)

Next, the vacuum cleaner head 16B in this embodiment will be described using FIG. 10 . Fig. 10 is a cross-sectional view of the cleaning head of the vacuum cleaner in the third embodiment of the present invention. Wherein, the parts that are the same as those in the above-mentioned embodiment 1 use the same symbols, so repeated description thereof will be omitted here.

As shown in FIG. 10 , the first rotating brush 30 driven by the motor 36 through the belt 38 in Embodiment 3 is arranged on the rear side of the rotating chamber 27 , and the second rotating brush 33 is arranged in front of the first rotating brush 30 . During operation, the first rotating brush 30 is driven to rotate in the opposite direction, that is, to rotate in the direction opposite to the forward direction of the vacuum cleaner head 16B, and to make the second rotating brush 33 toward the direction opposite to the direction of rotation of the first rotating brush 30. direction rotation.

After adopting the above-mentioned structure, if the vacuumed surface is a carpet, the first rotating brush 30 driven by the motor 36 will sweep the dust on the carpet between the first rotating brush 30 and the second rotating brush 33, not only the dust will not It can be reliably sucked to the outside, and because the middle section of the second cleaning sheet 34 of the second rotating brush 33 is soft, it is easy to bend even if it touches the surface of the carpet, so it will not affect the rotation of the second rotating brush 33. The rotation of the first rotating brush 30 produces a damping effect. On the other hand, when the surface to be vacuumed is a wooden floor, etc., since the first cleaning sheet 31 on the first rotating brush 30 receives a relatively low load from the surface to be vacuumed, the first rotating brush 30 can rotate strongly. , so the second rotating brush 33 can also rotate efficiently. In this way, the dust on the surface to be vacuumed can be collected between the second rotating brush 33 and the first rotating brush 30, and the effect of wiping and polishing the ground can also be fully exerted.

In addition, after the above-mentioned vacuum cleaner heads 16, 16A and 16B having superior dust removal performance are connected to an electric vacuum cleaner provided with an electric fan, an electric vacuum cleaner with excellent operability and dust removal performance can be provided. And metaphor.

In summary, the first and second rotating brushes in the vacuum cleaner head of the present invention can rotate efficiently and have excellent dust removal performance, so they can be used in various electric vacuum cleaners for household use, business use, and shop use. .

Claims (8)

1. dust catcher cleaner head is characterized in that comprising:

On periphery, be provided with first rotating brush of first cleaning sheet along its length;

Drive the drive source of described first rotating brush rotation; With

Be arranged in parallel with described first rotating brush, be rotated driving, simultaneously on periphery, be provided with second rotating brush of second cleaning sheet along its length by described first rotating brush,

During rotation described second cleaning sheet with by the contact resistance of dust suction face be set to less than described first cleaning sheet with by the contact resistance of dust suction face.

2. dust catcher cleaner head according to claim 1 is characterized in that:

The protrusion amount of described second cleaning sheet is configured to longer than the protrusion amount of described first cleaning sheet.

3. dust catcher cleaner head according to claim 1 is characterized in that:

The thickness degree of the fiber in described second cleaning sheet is set to than the fiber finer in described first cleaning sheet.

4. dust catcher cleaner head according to claim 1 is characterized in that:

The quantity of the fiber in described second cleaning sheet is set to than the fiber number in described first cleaning sheet to be lacked.

5. dust catcher cleaner head according to claim 1 is characterized in that:

The fiber of described second cleaning sheet intermittently is provided with along the length direction compartment of terrain of second rotating brush.

6. according to any described dust catcher cleaner head in the claim 1～5, it is characterized in that: first rotating brush is set at the front side, and second rotating brush is set at rear side; During dust suction, first rotating brush is towards the direction of advance rotation of cleaner head body, and described second rotating brush is towards the direction rotation opposite with the direction of rotation of first rotating brush.

7. according to any described dust catcher cleaner head in the claim 1～5, it is characterized in that: first rotating brush is arranged on rear side, and second rotating brush is arranged on the front side; During dust suction, first rotating brush is towards the direction rotation opposite with the body the forward motion direction, and described second rotating brush is towards the direction rotation opposite with the direction of rotation of first rotating brush.

8. electric dust collector is characterized in that comprising: electric fan and as any described dust catcher cleaner head in the claim 1～7.

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