CN106667368B

CN106667368B - Air duct switching mechanism for dust collector, air inlet pipe connecting structure and dust collector

Info

Publication number: CN106667368B
Application number: CN201710099911.8A
Authority: CN
Inventors: 林勇辉; 刘清; 胡卫
Original assignee: Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2017-02-23
Filing date: 2017-02-23
Publication date: 2020-02-04
Anticipated expiration: 2037-02-23
Also published as: CN106667368A

Abstract

The invention discloses an air duct switching mechanism for a dust collector, an air inlet pipe connecting structure and the dust collector, wherein the air duct switching mechanism for the vertical dust collector comprises: a first air duct; an air inlet pipe; a second air duct; the handle hose connector can be inserted into the second air guide pipe along the second direction, can move along the second air guide pipe, and can be clamped at the first position and the second position. The air duct switching mechanism for the dust collector has the advantages of compact structure, simplicity in operation, convenience in use and the like. The air inlet pipe connecting structure for the dust collector comprises: the inner circumferential surface of the first air guide pipe is provided with at least one convex rib part; the first end of the air inlet pipe is detachably inserted into the first air guide pipe. The air inlet pipe connecting structure has the advantages of simplicity in operation, convenience in use and the like.

Description

Air duct switching mechanism for dust collector, air inlet pipe connecting structure and dust collector

Technical Field

The invention relates to the technical field of electric appliance manufacturing, in particular to an air duct switching mechanism for a vertical dust collector, a dust collector with the air duct switching mechanism for the vertical dust collector and an air inlet pipe connecting structure for the dust collector.

Background

Upright cleaners have two modes of operation, the first mode in which the floor brush head is used as a suction opening in the floor. In a second mode of operation, the hose handle end or associated attachment is used as the suction opening. In both modes, the upright cleaner must share at least the dust collecting and separating system and the subsequent air passage, and both modes of operation cannot be used simultaneously, so that it is necessary to provide an air passage switching mechanism.

In the air duct switching mechanism of the vertical dust collector in the related art, pipelines are easy to block, and are not easy to clean after being blocked, so that the normal use of a user is influenced.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the invention provides the air duct switching mechanism for the vertical dust collector, which has the advantages of compact structure, simplicity in operation, convenience in use and the like. The invention provides an air inlet pipe connecting structure for a dust collector, which has the advantages of simplicity in operation, convenience in use and the like.

The invention also provides a dust collector with the air duct switching mechanism for the dust collector.

To achieve the above object, an embodiment according to a first aspect of the present invention provides an air duct switching mechanism for an upright type vacuum cleaner, including: a first air duct; the first air guide pipe is detachably connected with the air inlet pipe along a first direction and is communicated with fluid; a second air duct, the second air duct being connected to and in fluid communication with the first air duct along a second direction, the second direction being different from the first direction; the handle hose connector can be inserted into the second air guide pipe along the second direction, can move along the second air guide pipe, and can be clamped at a first position and a second position, the second position is closer to the first air guide pipe relative to the first position, and when the handle hose connector is clamped at the first position, the air inlet pipe and the first air guide pipe form a first air inlet channel; and when the handle hose connector is clamped at the second position, the handle hose connector and the first air guide pipe form a second air inlet channel.

The air duct switching mechanism for the vertical dust collector has the advantages of compact structure, simplicity in operation, convenience in use and the like.

In addition, the air duct switching mechanism for the upright type dust collector according to the above embodiment of the invention may further have the following additional technical features:

according to an embodiment of the invention, the first direction and the second direction are perpendicular.

According to one embodiment of the invention, the handle hose coupler comprises: a hose joint portion; a barrel body part which is hollow and is connected with the hose joint part; and the barrel bottom is connected with the lower edge of the barrel body part, and a notch is formed at the joint of the barrel body part and the barrel bottom, facing the first air guide pipe.

According to one embodiment of the invention, a side of the barrel part away from the first air guiding pipe is a plane guide surface, and the second air guiding pipe is configured to be matched with the barrel part.

According to an embodiment of the invention, a first limit groove is formed on the barrel body part, and a first button assembly is arranged on the outer side of the second air guide pipe, and the first button assembly is configured to be capable of being buckled to or released from the first limit groove at a first position.

According to one embodiment of the invention, the first button assembly comprises: the first switch body can pivot relative to the side wall of the second air guide pipe; the first elastic piece is arranged between the side wall of the second air guide pipe and the first end of the first switch body and elastically extrudes the first end of the first switch body; and the first end of the first clamping part is connected with the second end of the first switch body and clamped into the first limiting groove when the handle hose connector is inserted into the first position.

According to an embodiment of the invention, the second end of the first clamping portion is a right trapezoid, and a right waist edge of the trapezoid is perpendicular to the side wall of the handle hose connector and is closer to the first air guiding pipe than another oblique edge of the trapezoid.

According to an embodiment of the present invention, the second air guiding tube is further provided with a second detent portion, the hose connector portion is provided with a second button assembly, and when the handle hose connector is snapped at the second position, the second button assembly is configured to be snapped to or released from the second detent portion.

According to one embodiment of the invention, the second button assembly comprises: the second switch body can pivot relative to the side wall of the second air guide pipe; and the second elastic part is arranged between the other side wall of the second air guide pipe and the first end of the second switch body and elastically extrudes the first end of the second switch body, and a second limiting groove is formed at the position, close to the second end, of the second switch body so as to be clamped with the second clamping part.

According to an embodiment of the invention, a third limiting groove is formed at the second end of the second switch body, and when the handle hose connector is clamped at the first position, the second clamping portion is clamped in the third limiting groove.

According to an embodiment of the invention, the third limiting groove is an open groove at the second end of the second switch body, and when the handle hose connector is clamped at the first position, the second clamping portion is abutted against the bottom surface of the open groove.

Embodiments according to a second aspect of the present invention propose a vacuum cleaner comprising a duct switching mechanism for an upright cleaner according to embodiments of the first aspect of the present invention.

The dust collector comprises: a cleaner main body; a handle hose assembly communicated with the cleaner body and disposed at one side of the cleaner body; the floor brush head component is communicated with the dust collector main body; the air duct switching mechanism is used for the vertical dust collector according to the embodiment of the invention, the handle hose joint of the air duct switching mechanism is connected with the handle hose assembly, and the air inlet pipe of the air duct switching mechanism is connected with the floor brush head assembly.

According to the vacuum cleaner provided by the embodiment of the invention, by utilizing the air duct switching mechanism for the upright vacuum cleaner provided by the embodiment of the first aspect of the invention, the advantages of compact structure, simplicity in operation, convenience in use and the like are achieved.

An embodiment according to a third aspect of the present invention provides a blast pipe connection structure for a vacuum cleaner, including: the first air guide pipe is communicated with a dust collector body of the dust collector, and at least one protruding rib part is formed on the inner circumferential surface of the first air guide pipe; the first end of the air inlet pipe is detachably inserted into the first air guide pipe, a first annular rib position portion is arranged at the first end of the air inlet pipe, at least one notch portion is formed in the first annular rib position portion and corresponds to the protruding rib position portions respectively, and the width of the notch portion in the circumferential direction of the air inlet pipe is not smaller than the width of the protruding rib position portion in the circumferential direction of the first air guide pipe.

The air inlet pipe connecting structure for the dust collector has the advantages of simplicity in operation, convenience in use and the like.

In addition, the air inlet pipe connection structure for the dust collector according to the above embodiment of the present invention may further have the following additional technical features:

according to an embodiment of the present invention, a cross section of the first annular bead portion along an axis of the first air guiding pipe is a first right-angled trapezoid, a short side of the first right-angled trapezoid is perpendicular to the axis of the first air guiding pipe and is farther from an opening side of the first air guiding pipe than a long side of the first right-angled trapezoid, and a hypotenuse of the first right-angled trapezoid is joined to an inner surface of the first air guiding pipe.

According to an embodiment of the present invention, a cross section of the protruding rib portion along the axis of the first air guiding pipe is a second right trapezoid, and a long side of the second right trapezoid overlaps a long side of the first right trapezoid.

According to an embodiment of the present invention, a second annular rib portion is further disposed on the first end of the air inlet duct, and the second annular rib portion is located on a side of the air inlet duct away from the first air guiding duct.

According to one embodiment of the invention, the raised bead is confined between the first and second annular beads.

According to an embodiment of the present invention, a stopper rib is bridged between the first and second annular rib portions, and the stopper rib is spaced apart from the notch portion by a predetermined distance in the circumferential direction of the air inlet duct.

According to an embodiment of the present invention, a stopping step portion is defined in the first air duct, and the stopping step portion stops an end portion of the first end of the air inlet duct.

Drawings

Fig. 1 is a schematic view showing the construction of an upright type cleaner according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of an air duct switching mechanism for an upright type vacuum cleaner and an air inlet pipe connecting structure for a vacuum cleaner according to an embodiment of the present invention, in which a handle hose joint is snapped in a first position.

Fig. 3 is a sectional view of an air duct switching mechanism for an upright type cleaner, an air inlet duct connecting structure for a cleaner, according to an embodiment of the present invention, in which a handle hose joint is snapped in a first position.

Fig. 4 is a sectional view of an air duct switching mechanism for an upright type cleaner, an air inlet duct connecting structure for a cleaner, according to an embodiment of the present invention, in which a handle hose joint is snapped in a first position.

FIG. 5 is a partial cross-sectional view of an air duct switching mechanism for an upright cleaner according to an embodiment of the present invention, wherein the handle hose coupler is snapped into a first position.

Fig. 6 is a sectional view of an air duct switching mechanism for an upright type cleaner, an air inlet duct connecting structure for a cleaner, according to an embodiment of the present invention, in which a handle hose joint is snapped in a second position.

Fig. 7 is a sectional view of an air duct switching mechanism for an upright type cleaner, an air inlet duct connecting structure for a cleaner, according to an embodiment of the present invention, in which a handle hose joint is snapped in a second position.

Fig. 8 is a partial sectional view of a connection structure of an air inlet duct for a vacuum cleaner according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of a connection structure of an air inlet duct for a vacuum cleaner according to an embodiment of the present invention.

Fig. 10 is a sectional view of a floor brush hose connection structure for a vacuum cleaner according to an embodiment of the present invention.

Reference numerals: the vertical vacuum cleaner 1, the air duct switching mechanism 10 for the vertical vacuum cleaner, the first air guiding pipe 100, the protruding rib portion 110, the stopping step portion 120, the air inlet pipe 200, the first end 210 of the air inlet pipe, the first annular rib portion 211, the notch portion 2111, the second annular rib portion 212, the limiting rib 213, the fastening hole 220, the second air guiding pipe 300, the first button assembly 310, the first switch body 311, the first end 3111 of the first switch body, the second end 3112 of the first switch body, the first clamping portion 312, the first end 3121 of the first clamping portion, the second end 3122 of the first clamping portion, the second clamping portion 313, the handle hose connector 400, the hose connector portion 410, the second button assembly 420, the second switch body 421, the first end 4211 of the second switch body, the second end 4212 of the second switch body, the second limiting groove 4213, the third limiting groove 4214, the barrel portion 430, the first button assembly 431, the barrel bottom 440, and the barrel bottom portion, A floor brush hose connector 500, a release collar 600, a rib 610, an annular sealing ring 700, an air inlet pipe connecting structure 20 for a dust collector, and a dust collection separation assembly 30.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

An air duct switching mechanism 10 for an upright type cleaner according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 9, an air duct switching mechanism 10 for an upright type vacuum cleaner according to an embodiment of the present invention includes a first air guide duct 100, an air inlet duct 200, a second air guide duct 300, and a handle hose connector 400.

The first air guiding duct 100 is detachably connected to and in fluid communication with the air inlet duct 200 along a first direction. The second air duct 300 is connected to and in fluid communication with the first air duct 100 along a second direction, which is different from the first direction. The handle hose connector 400 is insertable into the second air guiding duct 300 along the second direction, is movable along the second air guiding duct 300, and is capable of being clamped at a first position and a second position, the second position is closer to the first air guiding duct 100 relative to the first position, wherein when the handle hose connector 400 is clamped at the first position, the air inlet duct 200 and the first air guiding duct 100 form a first air inlet channel. And when the handle hose connector 400 is clamped at the second position, the handle hose connector 400 and the first air guide pipe 100 form a second air inlet channel.

Specifically, the first air duct 100 is communicated with the dust collection and separation assembly 30 of the vacuum cleaner, the second air duct 300 is communicated with the handle of the vacuum cleaner, and the air inlet duct 200 is communicated with the floor brush of the vacuum cleaner.

The operation of the air duct switching mechanism 10 for an upright type cleaner according to the embodiment of the present invention will be described with reference to the accompanying drawings.

When the handle hose connector 400 is in the first position during operation of the upright vacuum cleaner according to the embodiment of the present invention, the air inlet pipe 200 and the first air duct 100 form the first air inlet channel, so that the floor brush of the vacuum cleaner is communicated with the dust collecting and separating assembly 30. When the handle hose connector 400 is moved to the second position, the handle hose connector 400 and the first air duct 100 form the second air inlet passage, so that the handle of the vacuum cleaner is communicated with the dust separation assembly 30. Therefore, the first air inlet channel and the second air inlet channel can be switched with each other, so that the dust collector is switched between a hand brush function and a floor brush function. The handle hose connector 400 can be inserted into the second wind guiding duct 300 in the second direction, and the handle hose connector 400 can be pulled out of the second wind guiding duct 300 by moving the handle hose connector 400 in a direction in which the handle hose connector 400 is moved from the second position to the first position in the second direction.

According to the embodiment of the invention, the air duct switching mechanism 10 for the vertical dust collector can be clamped at the first position and the second position, so that the air duct switching mechanism 10 for the vertical dust collector can be switched between different working modes, the vertical dust collector can be conveniently used in different working modes, and the vertical dust collector can achieve the best dust collection effect. Meanwhile, when the user uses the vertical dust collector, the operation of switching different working modes of the vertical dust collector is simple, and the steps are few. Therefore, the user can select the working mode of the vertical dust collector according to the actual condition, so that the use of the user is facilitated, and the use comfort of the user is improved.

And, the joint structure can be conveniently with the wind channel switching mechanism 10 that is used for vertical dust catcher fix a position in the primary importance or the second place, can prevent like this that the wind channel switching mechanism 10 that is used for vertical dust catcher from shifting or wrong action when the user uses the dust catcher to avoid influencing the working property of vertical dust catcher, improve the operational reliability of vertical dust catcher.

Further, the duct switching mechanism 10 can be detached by detachably connecting and fluidly communicating the first air guiding duct 100 and the air inlet duct 200 in the first direction, and inserting and pulling out the second air guiding duct 300 by the handle hose joint 400. Compare the dust catcher that adopts three-way valve mechanism to communicate among the correlation technique, be convenient for like this the clearance and the maintenance of vertical dust catcher when piling up the dust in the wind channel switching mechanism 10 that is used for vertical dust catcher, can be timely clear up, avoid the wind channel switching mechanism 10 that is used for vertical dust catcher to take place to block up in the course of the work, are convenient for improve the working property of vertical dust catcher.

Therefore, the air duct switching mechanism 10 for the upright type vacuum cleaner according to the embodiment of the present invention has the advantages of compact structure, simple operation, and convenient use.

An air duct switching mechanism 10 for an upright cleaner according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In some embodiments of the present invention, as shown in fig. 1 to 9, an air duct switching mechanism 10 for an upright type vacuum cleaner according to an embodiment of the present invention includes a first air guide duct 100, an air inlet duct 200, a second air guide duct 300, and a handle hose connector 400.

Specifically, as shown in fig. 1-4, 6 and 7, the first direction and the second direction are perpendicular. Therefore, the first air inlet channel and the second air inlet channel can be formed conveniently, the air duct switching mechanism 10 can be connected with the ground brush, the hand brush and the dust collecting and separating assembly 30 respectively, and the air duct switching mechanism 10 for the vertical dust collector can be switched between different working modes conveniently.

Fig. 1 to 9 show an air duct switching mechanism 10 for an upright cleaner according to one specific example of the present invention. As shown in fig. 1 to 9, the handle hose connector 400 includes a hose connector portion 410, a cylindrical body portion 430, and a cylindrical bottom portion 440, and the cylindrical body portion 430 is hollow and connected to the hose connector portion 410. And the barrel bottom 440 is connected to the lower edge of the barrel part 430 (the up-down direction is shown by arrow a in fig. 2-4, 6 and 7, it should be understood that the direction shown in the figures is only for convenience of description and is not limited to the actual direction of the present embodiment), and a notch is formed at the connection point of the barrel part 430 and the barrel bottom 440, which faces the first air guiding duct 100. Thus, when the handle hose connector 400 is in the first position, the handle hose connector 400 is retracted from the first air guiding pipe 100, so that the air inlet pipe 200 is communicated with the first air guiding pipe 100, and the first air inlet channel can be formed. In the second position, the handle hose connector 400 is communicated with the first air guiding pipe 100 through the notch, so that the second air inlet channel can be formed, and the first air inlet channel and the second air inlet channel can be conveniently formed and switched.

Optionally, the cross-section of the barrel portion 430 is non-circular, and the second air duct 300 is configured to fit the barrel portion 430. Specifically, the side of the cylindrical body 430 away from the first air guiding duct 100 has a guiding plane, and the second air guiding duct 300 is configured to fit the cylindrical body 430. Thus, the movement of handle hose connector 400 can be positioned and guided by barrel 430 and second air duct 300, which not only prevents relative rotation between second air duct 300 and handle hose connector 400, ensures alignment of the duct holes, but also facilitates movable insertion of handle hose connector 400 into second air duct 300. Meanwhile, the movement of the handle hose connector 400 can be smoother, the installation of the handle hose connector 400 is facilitated, and the use comfort of a user is improved.

Advantageously, as shown in fig. 1 to 9, a first limiting groove 431 is formed on the barrel 430, and a first button assembly 310 is disposed on the outer side of the second air guiding duct 300, and the first button assembly 310 is configured to be able to be snapped into the first limiting groove 431 or released from the first limiting groove 431 in the first position. Therefore, the relative positions of the handle hose connector 400 and the second air guiding pipe 300 can be positioned by using the first limiting groove 431 and the first button assembly 310, so that the handle hose connector 400 is positioned at the first position, the handle hose connector 400 is prevented from being displaced when a user uses the vacuum cleaner, the user can use the vacuum cleaner conveniently, and the air inlet pipe 200 and the first air guiding pipe 100 form the first air inlet channel conveniently.

More advantageously, as shown in fig. 1 to 9, the first button assembly 310 includes a first switch body 311, a first elastic member and a first latching portion 312, and the first switch body 311 is pivotable relative to a sidewall of the second air duct 300. The first elastic member is disposed between the sidewall of the second air guiding pipe 300 and the first end 3111 of the first switch body and elastically presses the first end 3111 of the first switch body. The first end 3121 of the first catching portion is connected to the second end 3112 of the first switch body and is caught in the first catching groove 431 when the handle hose connector 400 is inserted to the first position. Thus, the handle hose connector 400 and the first button assembly 310 can be used in cooperation, the position of the handle hose connector 400 can be reliably limited by the first button assembly 310, and the user can release the limit of the handle hose connector 400 by operating the first button assembly 310 to move the handle hose connector 400, so that the air duct switching mechanism 10 can be conveniently switched.

Further, as shown in fig. 5, the second end of the first latching portion 312 has a right-angled trapezoid shape, and the right-angled waist side of the trapezoid shape is perpendicular to the side wall of the handle hose connector 400 and is closer to the first air guiding duct 100 than the other oblique side of the trapezoid shape. Therefore, the first clamping portion 312 can be reliably clamped into the first limiting groove 431, so that the handle hose connector 400 is guided by the trapezoidal inclined surface during installation, the handle hose connector 400 can be more smoothly inserted into the second air guide pipe 300, and the handle hose connector 400 cannot be upwards pulled out by stopping by the trapezoidal plane when the first button assembly 310 is not pressed, thereby ensuring the working reliability of the vertical dust collector.

Fig. 1 to 9 show an air duct switching mechanism 10 for an upright cleaner according to one specific example of the present invention. The second air duct 300 is further provided with a second latching portion 313, the hose connector portion 410 is provided with a second button assembly 420, and when the handle hose connector 400 is latched at the second position, the second button assembly 420 is configured to be latched to the second latching portion 313 or released from the second latching portion 313. In this way, the handle hose connector 400 and the second air guiding duct 300 can be positioned relative to each other by the second latching portion 313 and the second button assembly 420, so that the handle hose connector 400 is positioned at the second position, and the user can release the handle hose connector 400 by operating the second button assembly 420 to release the position of the handle hose connector 400, so that the handle hose connector 400 can be moved, the air duct switching mechanism 10 can be conveniently switched, and the handle hose connector 400 and the first air guiding duct 100 can form the second air inlet passage.

Specifically, as shown in fig. 1 to 9, the second button assembly 420 includes a second switch body 421 and a second elastic member, and the second switch body 421 is pivotable with respect to a sidewall of the second air duct 300. The second elastic member is disposed between the other side wall of the second air duct 300 and the first end 4211 of the second switch body and elastically presses the first end 4211 of the second switch body, wherein a second limit groove 4213 is formed at a position of the second switch body close to the second end 4212 thereof to clamp the second clamping portion 313. Specifically, the second end 4212 of the second switch body may be lifted against the elastic force of the elastic member by operating the first end 4211 of the second switch body. Thus, the second air duct 300 and the second button assembly 420 can be used together, when the handle hose connector 400 is located at the second position, the second position-limiting groove 4213 and the second latching portion 313 are used for limiting the position of the handle hose connector 400, so that the handle hose connector 400 can be further reliably limited at the second position through the second button assembly 420, and the switching can be conveniently performed.

More specifically, as shown in fig. 4 and 7, the second switch body second end 4212 is formed with a third stopper groove 4214, and when the handle hose connector 400 is snapped at the first position, the second snap portion 313 is snapped in the third stopper groove 4214. Therefore, the third limit groove 4214 and the second button assembly 420 can be utilized to further position the relative position of the handle hose connector 400 and the second air guiding pipe 300, so as to ensure that the handle hose connector 400 is positioned at the first position, thereby facilitating the air inlet pipe 200 and the first air guiding pipe 100 to form the first air inlet channel, avoiding the influence of accidental falling on the formation of the first air inlet channel, and enabling the second clamping portion 313 to be separated from the third limit groove 4214 by pressing the first end 4211 of the second switch body, and enabling the second clamping portion 313 to be matched with the second limit groove 4213 by moving the handle hose connector 400, thereby realizing the switching of the position of the handle hose connector 400.

In other words, the second detent portion 313 fits into the third retaining groove 4214 when the handle hose connector 400 is in the first position; the second detent portion 313 fits into the second retaining groove 4213 when the handle hose connector 400 is in the second position.

Further, as shown in fig. 4 and 7, the third stopper groove 4214 is an open groove formed in the second end 4212 of the second switch body, and the second retaining portion 313 abuts against a groove bottom surface of the open groove when the grip hose connector 400 is retained at the first position. Therefore, the second latching portion 313 can be reliably latched into the third retaining groove 4214, so that the handle hose connector 400 cannot be pushed downwards when the second button assembly 420 is not pressed, and the operational reliability of the upright vacuum cleaner can be further ensured.

Specifically, the air duct switching mechanism 10 for the upright type vacuum cleaner can reliably limit the operation mode of the upright type vacuum cleaner by providing the first button assembly 310 and the second button assembly 420, and can facilitate the switching of the operation mode of the upright type vacuum cleaner, thereby preventing the occurrence of the misoperation of the user or the accidental switching of the operation mode of the upright type vacuum cleaner.

When the handle hose connector 400 is in the first position during operation of the vacuum cleaner 1 according to the embodiment of the present invention, the air inlet pipe 200 and the first air guiding pipe 100 form the first air inlet channel. Pressing the second button assembly 420 moves the handle hose coupler 400 to the second position, wherein the handle hose coupler 400 and the first air duct 100 form the second air inlet path. When the second button assembly 420 is pressed again, the handle hose connector 400 is moved to the first position, the air inlet pipe 200 and the first air guide pipe 100 form the first air inlet channel again, and the first air inlet channel and the second air inlet channel are switched with each other, so that the vacuum cleaner is switched between the hand brushing function and the floor brushing function. Continued depression of the first button assembly 310 pulls the handle hose coupler 400 out of the second air duct 300.

A vacuum cleaner according to an embodiment of the present invention is described below. The dust collector comprises: a cleaner main body; a handle hose assembly communicated with the cleaner body and disposed at one side of the cleaner body; the floor brush head component is communicated with the dust collector main body; the air duct switching mechanism is used for the vertical dust collector according to the embodiment of the invention, the handle hose joint of the air duct switching mechanism is connected with the handle hose assembly, and the air inlet pipe of the air duct switching mechanism is connected with the floor brush head assembly.

The vacuum cleaner 1 according to the embodiment of the present invention has the advantages of compact structure, simple operation, and convenient use by using the air duct switching mechanism 10 for the upright vacuum cleaner according to the above-described embodiment of the present invention.

Other constructions and operations of the cleaner 1 according to the embodiment of the invention are known to those skilled in the art and will not be described in detail here.

An air inlet duct coupling structure 20 for a vacuum cleaner according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 9, an air inlet duct connection structure 20 for a vacuum cleaner according to an embodiment of the present invention includes a first air guide duct 100 and an air inlet duct 200.

The first air guiding duct 100 is communicated with a cleaner body of the cleaner 1, and at least one protruding rib portion 110 is formed on an inner circumferential surface of the first air guiding duct 100. And the first end 210 of the air inlet pipe 200 is detachably inserted into the first air guiding pipe 100, the first end 210 of the air inlet pipe 200 is provided with a first annular rib part 211, at least one notch part 2111 is formed on the first annular rib part 211, the notch parts 2111 correspond to the protruding rib parts 110 respectively, wherein the width of the notch part 2111 along the circumferential direction of the air inlet pipe 200 is not less than the width of the protruding rib parts 110 along the circumferential direction of the first air guiding pipe 100.

Specifically, the first air guide duct 100 communicates with the dust collection and separation assembly 30 of the vacuum cleaner, and the air inlet duct 200 communicates with the floor brush of the vacuum cleaner.

The following describes a coupling process of the air inlet duct coupling structure 20 for a vacuum cleaner according to an embodiment of the present invention with reference to the accompanying drawings.

When the first air guiding pipe 100 and the air inlet pipe 200 are installed, firstly, the air inlet pipe 200 and the first air guiding pipe 100 are aligned, the notch portion 2111 is aligned with the protruding rib portion 110, the first air guiding pipe 100 is inserted into the air inlet pipe 200, the protruding rib portion 100 passes through the notch portion 2111, then the air inlet pipe 200 and the first air guiding pipe 100 are relatively rotated, and the protruding rib portion 110 is stopped on the first annular rib portion, so that the air inlet pipe 200 and the first air guiding pipe 100 are connected; when the air inlet duct 200 is disassembled, the air inlet duct 200 is rotated in the reverse direction, so that the notch 2111 is aligned with the raised rib portion 110 again, and the air inlet duct 200 can be separated from the first air guiding duct 100.

According to the air inlet pipe connection structure 20 for the vacuum cleaner of the embodiment of the present invention, the first air guiding duct 100 and the air inlet pipe 200 can be easily connected and detached by providing the protruding rib portion 110 and the first annular rib portion 211 having the notch portion 2111. Therefore, the air inlet pipe 200 can be detached when the dust collector is cleaned, so that the dust collector can be cleaned and maintained in time by a user, the blockage of the dust collector in the working process is avoided, and the working performance of the dust collector is improved.

In addition, since the first air guiding duct 100 and the air inlet duct 200 are connected by the protruding rib portion 110 and the first annular rib portion 211 having the notch portion 2111, when the air inlet duct 200 is connected and detached, only the air inlet duct 200 needs to be rotated and inserted and pulled out, so that the operation for detaching and attaching the air inlet duct connection structure 2 of the dust collector is simple and has few steps, thereby facilitating the use of users and improving the use comfort of users.

Further, the air inlet pipe connection structure 20 for the dust collector only needs to be connected through the respective structures of the first air guiding pipe 100 and the air inlet pipe 200, and other structures for connecting the two can be omitted, so that the number of parts of the dust collector can be reduced, and the air inlet pipe connection structure 20 is convenient to install. This facilitates the assembly of the air inlet pipe coupling structure 20 for a vacuum cleaner, thereby facilitating the assembly of the vacuum cleaner, improving the assembly efficiency thereof, and reducing the assembly cost thereof.

In addition, because the air inlet pipe 200 is disassembled and assembled through rotation and insertion, compared with a direct insertion connection mode, the stability of the air inlet pipe 200 after installation can be ensured, and the air inlet pipe 200 is prevented from being separated from the first air guide pipe 100 except when the dust collector is normally used through adjustment of a rotation angle, so that the connection reliability of the air inlet pipe 200 is ensured.

Therefore, the air inlet pipe connection structure 20 for the vacuum cleaner according to the embodiment of the present invention has advantages of simple operation, convenient use, etc.

In some embodiments of the present invention, as shown in fig. 1 to 9, a blast pipe connection structure 20 for a vacuum cleaner according to an embodiment of the present invention includes a first air guide duct 100 and a blast pipe 200.

Specifically, as shown in fig. 8 and 9, a cross section of the first annular rib portion 211 along the axis of the first air guiding duct 100 is a first right-angled trapezoid, a short side of the first right-angled trapezoid is perpendicular to the axis of the first air guiding duct 100 and is farther from the opening side of the first air guiding duct 100 than a long side of the first right-angled trapezoid, and a hypotenuse of the first right-angled trapezoid is joined to the inner surface of the first air guiding duct 100. Therefore, the air inlet pipe 200 can be guided by the trapezoidal inclined surface during installation, so that the air inlet pipe 200 can be more smoothly inserted into the first air guiding pipe 100, and the trapezoidal plane can be used for stopping, so that the air inlet pipe 200 cannot be pulled out, and the working reliability of the dust collector is ensured. Meanwhile, the first air guide pipe 100 and the air inlet pipe 200 can be conveniently matched and connected, the air inlet pipe 200 can not be inserted too deeply into the first air guide pipe 100, and the first air guide pipe 100 and the air inlet pipe 200 can be conveniently connected and positioned.

More specifically, as shown in fig. 8 and 9, the cross section of the protruding rib portion 110 along the axis of the first air guide duct 100 is a second right-angled trapezoid, and the long side of the second right-angled trapezoid overlaps the long side of the first right-angled trapezoid. Therefore, the air inlet pipe 200 can be guided by the trapezoidal inclined surface during installation, so that the air inlet pipe 200 can be more smoothly inserted into the first air guiding pipe 100, and the trapezoidal plane can be used for stopping, so that the air inlet pipe 200 cannot be pulled out, and the working reliability of the dust collector is ensured. Meanwhile, the first air guide pipe 100 and the air inlet pipe 200 can be conveniently matched and connected, and the air inlet pipe 200 can not be inserted too deeply into the first air guide pipe 100, so that the first air guide pipe 100 and the air inlet pipe 200 can be conveniently connected and positioned.

Advantageously, as shown in fig. 8 and 9, the first end 210 of the air inlet duct is further provided with a second annular rib 212, and the second annular rib 212 is located on a side of the air inlet duct 200 away from the first air guiding duct 100. Thus, the second annular rib portion 212 can cooperate with the raised rib portion 110 to facilitate the connection between the first air guiding duct 100 and the air inlet duct 200.

More advantageously, the raised bead 110 is confined between the first and second

annular beads

211 and 212. Like this second annular muscle position portion 212 and protruding muscle position portion 110 mutually support, first annular muscle position portion 211 and second annular muscle position portion 212 are spacing protruding muscle position portion 110 simultaneously to can inject the mounted position of protruding muscle position portion 110, be convenient for further the connection of first guide duct 100 and air-supply line 200.

Alternatively, as shown in fig. 8 and 9, a stopper rib 213 is bridged between the first and second

annular rib portions

211 and 212, and the stopper rib 213 is spaced apart from the notch portion by a predetermined distance along the circumferential direction of the first air inlet duct 100. Therefore, the limiting rib 213 can be used to stop the protruding rib portion 110, so as to limit the relative rotation angle between the first air guiding duct 100 and the air inlet duct 200, and prevent the first air guiding duct 100 and the air inlet duct 200 from being separated from each other.

Specifically, as shown in fig. 8 and 9, a stopping step portion 120 is defined in the first air guiding duct 100, and the stopping step portion 120 stops at the end of the first end 210 of the air inlet duct. Therefore, when the first air guide pipe 100 is connected with the air inlet pipe 200, the air guide pipe can conveniently reach the connection position, the first air guide pipe 100 is conveniently connected with the air inlet pipe 200, a user can conveniently confirm whether the air guide pipe is inserted in place, and the user can be prompted to rotate after the air guide pipe is inserted in place, so that the operation of the user is facilitated, and the use comfort of the user is improved.

The air inlet pipe 200 is provided with a floor brush hose connection structure for a dust collector. A floor brush hose connection structure for a vacuum cleaner includes an air inlet duct 200, a floor brush hose coupling 500, and a release collar 600, the floor brush hose coupling 500 being received in the air inlet duct 200. The release collar 600 releasably snaps over an end of the air inlet duct 200 and abuts the floor brush hose fitting 500, wherein the release collar 600, the floor brush hose fitting 500 and the air inlet duct 200 form an air inlet channel.

According to the floor brush hose connecting structure for the dust collector provided by the embodiment of the invention, the air inlet pipe 200, the floor brush hose connector 500 and the release collar 600 are arranged, so that the release collar 600 can be releasably clamped at one end of the air inlet pipe 200 and abuts against the floor brush hose connector 500, the air inlet channel can be formed by the air inlet pipe, the air inlet channel and the release collar 600, the dust collector 1 can smoothly enter air, the manufacturing difficulty of the floor brush hose connecting structure for the dust collector can be reduced conveniently, the formation of the air inlet channel is facilitated, the production and the manufacture of the floor brush hose connecting structure for the dust collector are facilitated, and the production efficiency of the floor brush hose connecting structure for the dust collector is improved.

And, by releasably fastening the release collar 600 to one end of the air inlet duct 200 and stopping the floor brush hose connector 500, the release collar 600 can be disengaged from the air inlet duct 200 by releasing the release collar 600, so that the floor brush hose connector 500 can be disengaged from the air inlet duct 200, thereby enabling the disassembly of the floor brush hose connection structure. Because scrubbing brush hose connection structure is detachable structure, compares the air inlet pipe structure among the correlation technique, can make scrubbing brush hose connection structure's structural flexibility is better, will release rand 600 and dismantle when needs clearance to dismantle scrubbing brush hose nipple 500. Like this be used for when piling up the dust in the scrubbing brush hose connection structure of dust catcher, can be timely clear up it, avoid being used for the dust catcher scrubbing brush hose connection structure takes place to block up in the course of the work, guarantees be used for the dust catcher scrubbing brush hose connection structure's job stabilization nature to improve the work efficiency of dust catcher 1.

Further, by arranging the release retainer ring 300, when the floor brush hose connection structure needs to be disassembled, only the release retainer ring 600 needs to be released, and when the floor brush hose connector 500 is assembled, only the floor brush hose connector 500 needs to be put into the air inlet pipe 200, and the release retainer ring 600 is clamped on the air inlet pipe 200. Therefore, the floor brush hose connecting structure is simple in structure, convenient to operate and convenient to disassemble and assemble, is convenient for a user to use, and improves the use comfort of the user. Meanwhile, the cleaning and maintenance of the floor brush hose connecting structure can be facilitated, and the cleaning and maintenance efficiency of the dust collector 1 is improved.

In addition, the air inlet pipe 200 and the floor brush hose coupling 500 of the floor brush hose coupling structure for a vacuum cleaner are relatively rotatable. Can make the scrubbing brush hose nipple 500 of dust catcher 1 install like this can move more nimble after the scrubbing brush hose connection structure is gone up, make the user more nimble when using dust catcher 1, improve the travelling comfort when the user uses dust catcher 1, only need set up release rand 300 moreover and end to ground brush hose nipple 500, need not additionally set up rotatable structure, need not additionally set up the connecting piece between the part. Therefore, the air inlet pipe connecting structure 1 for the dust collector has fewer parts and simpler structure, is convenient for reducing the production cost of the vertical dust collector and improves the production efficiency of the vertical dust collector.

Specifically, as shown in fig. 2 and 3, and 4-7, at least one fastening hole 220 is formed at one end of the air inlet duct 200, and a rib 610 is formed on an outer surface of the release collar 600, and the rib 610 corresponds to the fastening hole 220 and is fastened to the fastening hole 220. Thus, the rib 610 and the locking hole 220 can be used to position the release clip 600, the release clip 600 is prevented from being separated from the air inlet duct 200 when the rib 610 is locked in the locking hole 220, and the release clip 600 can be separated from the air inlet duct 200 by releasing the rib 610 when disassembly is required. Due to the fact that the buckle structure is simple in structure and convenient to assemble, the assembling and disassembling efficiency of the floor brush hose connecting structure for the dust collector can be improved, the production efficiency of the floor brush hose connecting structure is improved, and the manufacturing cost of the floor brush hose connecting structure is reduced.

More specifically, as shown in fig. 2 and 3, and fig. 4-7, the number of the snap holes 220 is 2, and is symmetrically distributed along the radial direction of the release collar 600. Can make protruding muscle 610 can cooperate in any of two buckle holes 220 like this, the homoenergetic when making release rand 600 two positions realizes the block smoothly, improves the flexibility when installation release rand 600 to further be convenient for release rand 600's installation, improve scrubbing brush hose connection structure's installation effectiveness.

Specifically, there are also 2 ribs 610 formed on the outer surface of release collar 600. Can be convenient for like this with air-supply line 200 two buckle holes 220 that one end formed mutually support and use, flexibility when not only can improving the installation can utilize two buckle holes 220 to fix a position release rand 600 moreover, make the atress of release rand 600 more even, avoid release rand 600 to take place the slope dislocation when the installation, make air-supply line 200 and release rand 600's connection more reliable, guarantee the structure of scrubbing brush hose connection structure reliably connects.

Other constructions and operations of the vacuum cleaner according to embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An air duct switching mechanism for an upright vacuum cleaner, comprising:

a first air duct;

the first air guide pipe is detachably connected with the air inlet pipe along a first direction and is communicated with fluid;

a second air duct, the second air duct being connected to and in fluid communication with the first air duct along a second direction, the second direction being different from the first direction;

the handle hose connector can be inserted into the second air guide pipe along the second direction, can move along the second air guide pipe and can be clamped at a first position and a second position, the second position is closer to the first air guide pipe relative to the first position, and the handle hose connector is arranged on the handle hose connector and can be clamped at the first position and the second position

When the handle hose connector is clamped at a first position, the air inlet pipe and the first air guide pipe form a first air inlet channel; and

when the handle hose connector is clamped at the second position, the handle hose connector and the first air guide pipe form a second air inlet channel,

the handle hose coupler comprises: a hose joint portion; a barrel body part which is hollow and is connected with the hose joint part; the cylinder bottom is connected with the lower edge of the cylinder body part, a notch is formed at the joint of the cylinder body part and the cylinder bottom part, which faces the first air guide pipe, the cross section of the cylinder body part is non-circular, and the second air guide pipe is matched with the cylinder body part,

a first limit groove is formed on the barrel body part, a first button component is arranged on the outer side of the second air guide pipe and comprises a first clamping part, the first button component is constructed to be capable of being buckled to the first limit groove or released from the first limit groove at a first position,

the second air guide pipe is further provided with a second clamping portion, the hose joint portion is provided with a second button assembly, and when the handle hose joint is clamped at the second position, the second button assembly is clamped to the second clamping portion or released from the second clamping portion.

2. The duct switching mechanism for an upright cleaner of claim 1, wherein the first direction and the second direction are perpendicular.

3. The duct switching mechanism according to claim 1, wherein a side of the barrel portion away from the first air guiding duct is a planar guide surface, and the second air guiding duct is configured to fit the barrel portion.

4. The duct switching mechanism for an upright cleaner of claim 1, wherein the first button assembly further comprises:

the first switch body can pivot relative to the side wall of the second air guide pipe;

the first elastic piece is arranged between the side wall of the second air guide pipe and the first end of the first switch body and elastically extrudes the first end of the first switch body;

the first end of the first clamping part is connected with the second end of the first switch body and clamped into the first limiting groove when the handle hose connector is inserted into the first position.

5. The duct switching mechanism of claim 4, wherein the second end of the first detent portion is in the shape of a right trapezoid, and a right waist edge of the trapezoid is perpendicular to the side wall of the hose connector and is closer to the first air guiding duct than another oblique edge of the trapezoid.

6. The duct switching mechanism for an upright cleaner of claim 1, wherein the second button assembly comprises:

the second switch body can pivot relative to the side wall of the second air guide pipe;

a second elastic member disposed between the other side wall of the second air guide duct and the first end of the second switch body and elastically pressing the first end of the second switch body, wherein

And a second limit groove is formed at the position, close to the second end, of the second switch body so as to be clamped with the second clamping part.

7. The air duct switching mechanism for the upright vacuum cleaner as claimed in claim 6, wherein a third limiting groove is formed at the second end of the second switch body, and when the handle hose connector is clamped at the first position, the second clamping portion is clamped in the third limiting groove.

8. The air duct switching mechanism for the vertical vacuum cleaner as claimed in claim 7, wherein the third limiting groove is an open groove at the second end of the second switch body, and the second locking portion is locked against a bottom surface of the open groove when the hose connector is locked at the first position.

9. The air duct switching mechanism for the upright vacuum cleaner as claimed in claim 1, wherein the first air guiding duct is communicated with a cleaner body of the vacuum cleaner, and at least one protruding rib portion is formed on an inner circumferential surface of the first air guiding duct; the first end of the air inlet pipe is detachably inserted into the first air guide pipe, the first end of the air inlet pipe is provided with a first annular rib part, at least one notch part is formed on the first annular rib part, and the notch parts respectively correspond to the protruding rib parts, wherein

The width of the notch part along the circumferential direction of the air inlet pipe is not smaller than the width of the protruding rib part along the circumferential direction of the first air guide pipe.

10. The duct switching mechanism according to claim 9, wherein the cross section of the first annular rib portion along the axis of the first air guiding duct is a first right trapezoid, and a short side of the first right trapezoid is perpendicular to the axis of the first air guiding duct and is farther from the opening side of the first air guiding duct than a long side of the first right trapezoid, wherein

The inclined edge of the first right-angle trapezoid is jointed with the inner surface of the first air guide pipe.

11. The air duct switching mechanism for an upright vacuum cleaner as claimed in claim 10, wherein the cross section of the protruding rib portion along the axis of the first air duct is a second right trapezoid, and a long side of the second right trapezoid overlaps a long side of the first right trapezoid.

12. The duct switching mechanism of claim 9, wherein the first end of the air inlet duct further comprises a second annular rib portion, and the second annular rib portion is located on a side of the air inlet duct away from the first air guiding duct.

13. The air duct switching mechanism for an upright vacuum cleaner of claim 12, wherein the raised rib is confined between the first and second annular ribs.

14. The duct switching mechanism for an upright vacuum cleaner as claimed in claim 12, wherein a stopper rib is bridged between the first annular rib portion and the second annular rib portion, and the stopper rib is spaced apart from the notch portion by a predetermined distance along a circumferential direction of the air inlet duct.

15. The duct switching mechanism for an upright vacuum cleaner as recited in claim 9, wherein a stopper step is defined in said first air duct, said stopper step stopping an end of said first end of said air inlet duct.

16. A vacuum cleaner, comprising:

a cleaner main body;

a handle hose assembly communicated with the cleaner body and disposed at one side of the cleaner body;

the floor brush head component is communicated with the dust collector main body;

the air duct switching mechanism of any one of claims 1-15, wherein

The handle hose connector of the air duct switching mechanism is connected with the handle hose assembly, and the air inlet pipe of the air duct switching mechanism is connected with the floor brush head assembly.