CN209301008U - Air duct quick switching device for HEPA self-cleaning type dust collector - Google Patents

Abstract

The utility model discloses a duct quick switching device for a Hepa self-cleaning vacuum cleaner, comprising: a motor base; and a vent switching mechanism arranged in the motor base, wherein the motor base comprises: a left motor accommodating chamber and a right motor accommodating chamber that are adjacent and spaced apart; a left guide air duct connected to the left motor accommodating chamber; and a right guide air duct connected to the right motor accommodating chamber, the left guide air duct and the right guide air duct form a certain angle, so that the left guide air duct and the right guide air duct meet and communicate at the ends of their respective air ducts, an airflow confluence chamber is spaced apart from the sides of the left motor accommodating chamber and the right motor accommodating chamber, and the vent switching mechanism is located in the airflow confluence chamber. According to the utility model, while improving the compactness of the structure, reducing the volume and complexity of the structure, the response speed of the duct switching is improved, thereby improving the cleaning efficiency of Hepa and the service life of Hepa, and having broad market application prospects.

Description

A fast switching device for air duct used in Hypa self-cleaning vacuum cleaner

technical field

The utility model relates to the field of vacuum cleaners, in particular to an air duct quick switching device for a Hypa self-cleaning vacuum cleaner.

Background technique

The working principle of the vacuum cleaner is to use the motor to drive the blades to rotate at high speed, generate air negative pressure in the sealed shell, and absorb the surface of the carpet, floor, wall and other objects with dust, and the dust is sucked into the dust along with the air. After the separation component, the dust is filtered by the Hypa in the dust-air separation component and collected by the dust bucket, and the filtered clean air is discharged out of the vacuum cleaner body.

After the Hypa has been working for a period of time, a large amount of dust is adsorbed on the surface of the dust collecting bucket. A large amount of dust adheres to the surface of the Hypa, which will block the tiny filter holes on the surface of the Hypa, thereby affecting the filtration of the Hypa. The current vacuum cleaners on the market have the following problems: On the one hand, the existing vacuum cleaners lack the function of self-cleaning the Hypa. Generally, after the Hypa is clogged, the Hypa will be slapped to remove debris after the machine is disassembled. , or directly replace the Hypa after disassembly, either way will take a lot of cleaning time, and the latter will directly lead to the replacement cost of consumables; on the other hand, even if the existing vacuum cleaner is equipped with Hypa self-cleaning function , also adopts the electromagnetic relay structure, that is, mechanically beats the hypa, so that the dust on the surface of the hypa shakes off into the dust collection bucket. Complicated and expensive to use.

For this reason, our company has developed a self-cleaning vacuum cleaner, which uses two air ducts and two motors to divide the Hypa into two, and the two motors work at the same time, so that half of the Hypa can filter dust in the forward direction. When the dust is removed, the other half of the Hypa will carry out reverse blowing and dust removal, which requires the use of a quick switching device for the air duct to guide and alternately switch the negative pressure and airflow generated by the two motors, so that the two halves of the Hypa Dust removal and filtration can be carried out alternately, but the existing air duct quick switching device has the following problems: first, the volume is bloated and the structure is complicated; thirdly, the integration and guidance of the air duct are complicated, which makes the wind energy loss during the switching process of the air duct If it is too large, it will lead to problems such as high noise and low wind power; finally, there is a lag in the back and forth switching of the air duct, resulting in slow response and low operating sensitivity during actual use, which reduces the operator's experience.

In view of this, it is necessary to develop a fast air duct switching device for the Hypa self-cleaning vacuum cleaner to solve the above problems.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a quick switching device for the air duct of the Hypa self-cleaning vacuum cleaner, which improves the compactness of the structure, reduces the volume and complexity of the structure, and In addition, by optimizing the design of the two air ducts, the wind energy loss and the working noise of the vacuum cleaner during the air duct switching process are reduced, and the response speed of the air duct switching is improved, thereby improving the cleaning efficiency of the Hypa and the service life of the Hypa , has a broad market application prospect.

In order to achieve the above purpose and other advantages according to the utility model, a fast air duct switching device for a Hypa self-cleaning vacuum cleaner is provided, including:

motor mounts; and

The ventilation hole switching mechanism set in the motor base,

Among them, the motor base includes:

The left motor accommodation room and the right motor accommodation room are adjacent and arranged at intervals;

a left guide air duct communicated with the left motor housing chamber; and

The right guide air channel connected with the right motor accommodation chamber, the left guide air channel and the right guide air channel form a certain angle, so that the left guide air channel and the right guide air channel meet at the ends of the respective air channels and In communication, the left motor accommodation chamber and the right motor accommodation chamber are provided with an airflow confluence chamber at intervals, and the air hole switching mechanism is located in the airflow confluence chamber.

Preferably, the plane of the bottom wall of the air flow confluence chamber is located below the plane of the bottom walls of the left motor accommodation chamber and the right motor accommodation chamber.

Preferably, the intersection is formed with an air channel switching channel that communicates with the left guide air channel and the right guide air channel, and the air channel switching channel extends to the inside of the air flow confluence chamber and is spaced a certain distance from the bottom wall of the air flow confluence chamber , the bottom wall of the air flow confluence chamber is provided with a left blowing hole and a right blowing hole communicating with the outside world.

Preferably, the vent switching mechanism includes:

Adjacent and juxtaposed left switching motors and right switching motors;

sequentially rotate the connected first left rocker arm and the second left rocker arm; and

Sequentially rotate the connected first right rocker arm and second right rocker arm,

Wherein, the left switch motor and the right switch motor are all located directly above the airflow confluence chamber, the front end of the first left rocker arm is rotationally connected with the power output end of the left switch motor, and the front end of the first right rocker arm is connected with the power output end of the right switch motor. end swivel connection.

Preferably, the end of the second left rocker arm passes through the left blowing hole and is rotatably connected to the left air hole blocking assembly, and the end of the second right rocker arm passes through the right blowing hole and is rotatably connected to the right air hole blocking assembly components.

Preferably, the left air hole blocking assembly includes:

third left rocker arm; and

The left front blocking plate and the left rear blocking plate respectively fixed on the front and rear ends of the third left rocker arm,

Wherein, the middle sections of the first left rocker arm and the third left rocker arm are respectively provided with a left driving fulcrum and a left follow-up fulcrum, and the end of the second left rocker arm is rotationally connected with the left front or rear left blocking plate.

Preferably, the right air hole blocking assembly includes:

third right rocker arm; and

The right front blocking plate and the right rear blocking plate are fixedly connected to the front and rear ends of the third right rocker arm respectively,

Wherein, near the middle section of the first right rocker arm and the third right rocker arm, a right driving fulcrum and a right follow-up fulcrum are respectively provided, and the end of the second right rocker arm is rotatably connected with the right front blocking plate or the right rear blocking plate.

Preferably, directly below the left motor accommodation chamber and the right motor accommodation chamber, a left air extraction chamber and a right air extraction chamber are arranged at intervals respectively, wherein, the left air extraction chamber communicates with the right air extraction chamber, and the left air extraction chamber communicates with the right air extraction chamber. The air chamber, the right pumping chamber and the air confluence chamber are all arranged at intervals.

Preferably, the bottom wall of the left motor accommodation chamber and the bottom wall of the right motor accommodation chamber are respectively provided with left air holes and right air holes leading to the left air pumping chamber and the right air pumping chamber.

Preferably, the bottom wall of the left air extraction chamber and the bottom wall of the right air extraction chamber are respectively provided with a left air extraction hole and a right air extraction hole communicating with the outside world, and the left front blocking plate and the left rear blocking plate are respectively located at the left air blowing hole and the right air extraction hole. Directly below the left air extraction hole, the third left rocker arm is driven by the left switching motor to reciprocate around the left follow-up fulcrum, so that the left front blocking plate and the left rear blocking plate respectively connect the left air blowing hole and the left air extraction hole. For alternate sealing, the right front sealing plate and the right rear sealing plate are respectively located directly below the right air blowing hole and the right air extraction hole, and the third right rocker arm is driven by the right switching motor to reciprocate around the right follow-up fulcrum , so that the right front blocking plate and the left rear blocking plate respectively close the right air blowing hole and the right air extraction hole alternately, and then make:

When the left blowing hole and the right blowing hole are closed, the left blowing hole and the right blowing hole are opened; and

When the left blowing hole and the right blowing hole are opened, the left blowing hole and the right blowing hole are closed.

Preferably, the lower opening of the left air extraction hole and the lower opening of the right air extraction hole are respectively provided with a left sealing lip and a right sealing lip, wherein the left sealing lip is integrally combined with the left air extraction hole at the edge of the left air extraction hole and Extending vertically downward along the edge of the left air extraction hole, the right sealing lip is integrally combined with the right air extraction hole at the edge of the right air extraction hole and extends vertically downward along the edge of the right air extraction hole.

Preferably, the air duct switching channel includes:

a front wall panel adjoining the front side wall of the left air guide channel and the front side wall of the right air guide channel; and

the rear wall plate adjoining the rear side wall of the left air guide channel and the rear side wall of the right air guide channel,

Wherein, the front wall plate and the rear wall plate are parallel and separated by a certain distance, and the bottom of the front wall plate and the rear wall plate is provided with a bottom wall plate between them, and a confluence port is opened on the bottom wall plate, and the confluence port and the air flow The confluence chambers are connected.

Preferably, an air channel switching assembly is set up between the front wall panel and the rear wall panel, and the air channel switching assembly includes:

a left wind deflector for selectively blocking the duct end of the left guide duct; and

The right windshield at the end of the air duct for selectively blocking the right guide air duct.

Compared with the prior art, the utility model has the beneficial effects that while improving the compactness of the structure, reducing the volume and complexity of the structure, the utility model also reduces the wind energy during the switching process of the two air ducts by optimizing the design of the two air ducts. At the same time, it improves the response speed of air duct switching, thereby improving the cleaning efficiency of Hypa and the service life of Hypa, which has broad market application prospects.

Description of drawings

Figure 1 is a three-dimensional structural view of the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the present invention;

Fig. 2 is a top view of the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the utility model;

Fig. 3 is a left view of the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the utility model;

Fig. 4 is a three-dimensional structural view of the ventilation hole switching mechanism in the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the present invention;

Fig. 5 is a front view of the ventilation hole switching mechanism in the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the utility model;

Fig. 6 is a left view of the ventilation hole switching mechanism in the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the utility model;

Fig. 7 is a three-dimensional structural view of the motor base in the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the present invention;

Fig. 8 is a longitudinal sectional view of the motor base at the left motor accommodation room in the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the present invention;

Fig. 9 is a longitudinal sectional view of the motor base at the right motor accommodation room in the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the present invention;

Fig. 10 is a top view of the motor base in the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the present invention;

Fig. 11 is a longitudinal sectional view along the A-A direction in Fig. 10;

Fig. 12 is a three-dimensional mechanism view when the motor base is combined with the left motor and the right motor in the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the present invention;

Fig. 13 is a three-dimensional structural view of the left windshield and the right windshield in the air duct quick switching device for the Hypa self-cleaning vacuum cleaner according to the present invention, when they are not pushed by the airflow;

Fig. 14 is a three-dimensional structural view when the right guide air channel is connected with the confluence port in the air channel quick switching device for the Hypa self-cleaning vacuum cleaner according to the present utility model.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings, and the aforementioned and other objectives, features, aspects and advantages of the utility model will become more obvious, so that those skilled in the art can implement it with reference to the description. In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like parts. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are generally not intended to require a specific orientation. Terms referring to attachment, coupling, etc. (e.g., "connected" and "attached") refer to a fixed or attached relationship, as well as a movable or rigid attachment or relationship, of structures to one another, directly or indirectly through intermediate structures, unless otherwise stated in The other way is clearly stated.

Referring to Figure 1 and Figure 2, the air duct quick switching device for Hypa self-cleaning vacuum cleaner includes:

motor base 13; and

The ventilation hole switching mechanism 17 located in the motor base 13,

Wherein, motor base 13 comprises:

The left motor accommodation chamber 131 and the right motor accommodation chamber 132 which are adjacent and arranged at intervals;

The left guide air channel 1312 communicated with the left motor accommodation chamber 131; and

The right guide air channel 1322 communicated with the right motor accommodation chamber 132, the left guide air channel 1312 and the right guide air channel 1322 form a certain angle, so that the left guide air channel 1312 and the right guide air channel 1322 The ends of the respective air ducts meet and communicate with each other. The left motor accommodation chamber 131 and the right motor accommodation chamber 132 are provided with an airflow confluence chamber 134 at intervals, and the air hole switching mechanism 17 is located in the airflow confluence chamber 134 . In one embodiment, the left air guiding channel 1312 forms an included angle of 120° with the right air guiding channel 1322; in another embodiment, the left air guiding channel 1312 forms an included angle of 150° with the right air guiding channel 1322 ; In yet another embodiment, the left air guide channel 1312 and the right air guide channel 1322 form an angle of 180°.

1 and 2, the left motor housing chamber 131 and the right motor housing chamber 132 are used to accommodate the motor assembly 16, specifically, the left motor housing chamber 131 and the right motor housing chamber 132 are respectively equipped with a left motor 161 and a right motor 162 , the air outlets of the left motor 161 and the right motor 162 are located on their respective bottom surfaces, and the air outlet 1611 of the left motor 161 and the air outlet 1621 of the right motor 162 are respectively located on the sides of the left motor 161 and the right motor 162. In a preferred embodiment , the left motor accommodation chamber 131 and the right motor accommodation chamber 132 are both arc-shaped structures, and the left guide air duct 1312 and the right guide air duct 1322 are respectively tangent to the side walls of the left motor accommodation chamber 131 and the right motor accommodation chamber 132 , so that the airflow drawn from the respective bottom surfaces by the left motor 161 and the right motor 162 is respectively thrown out by the air outlet 1611 and the air outlet 1621, and then passes through the side wall of the left motor accommodation chamber 131 and the side wall of the right motor accommodation chamber 132. The flow is finally led out by the left air guide channel 1312 and the right air guide channel 1322 respectively.

Referring to FIG. 13 , the bottom wall of the motor accommodation chamber 131 and the bottom wall of the right motor accommodation chamber 132 are respectively provided with a left motor installation groove 1311 and a right motor installation groove 1321 .

Further, the plane of the bottom wall of the airflow confluence chamber 134 is located below the plane of the bottom walls of the left motor accommodation chamber 131 and the right motor accommodation chamber 132 .

Referring to Figures 7 to 14, the intersection is formed with an air channel switching channel 135 connecting the left guide air channel 1312 and the right guide air channel 1322, and the air channel switching channel 135 extends to the inside of the air flow confluence chamber 134 and is connected with the air flow. The bottom wall of the confluence chamber 134 is separated by a certain distance, and the bottom wall of the air flow confluence chamber 134 is provided with a left blowing hole 1341 and a right blowing hole 1342 communicating with the outside world.

Referring to Figures 4 to 6, the ventilation hole switching mechanism 17 includes:

The left switching motor 171 and the right switching motor 175 which are adjacent and arranged side by side;

Rotate the first left rocker arm 172 and the second left rocker arm 173 which are connected in turn; and

Rotate the connected first right rocker arm 176 and second right rocker arm 177 in turn,

Wherein, the left switch motor 171 and the right switch motor 175 are all located directly above the air flow confluence chamber 134, the front end of the first left rocker arm 172 is rotationally connected with the power output end of the left switch motor 171, and the front end of the first right rocker arm 176 is connected to the power output end of the left switch motor 171. The power output end of the right switching motor 175 is rotatably connected.

Referring to Fig. 1, Fig. 3 and Fig. 4, the end of the second left rocker arm 173 passes through the left air blowing hole 1341 and is rotatably connected with the left air hole blocking assembly, and the end of the second right rocker arm 177 passes through the right air blowing hole 1342 The rear is rotationally connected with a right air hole blocking assembly.

Further, the left air hole blocking assembly includes:

third left rocker arm 174; and

The left front blocking plate 1741 and the left rear blocking plate 1742 fixedly connected to the front and rear ends of the third left rocker arm 174 respectively,

Wherein, near the middle section of the first left rocker arm 172 and the third left rocker arm 174, a left driving fulcrum and a left follow-up fulcrum are respectively provided, and the end of the second left rocker arm 173 is connected with the left front blocking plate 1741 or the left rear blocking plate. 1742 turn connection.

Further, the right air hole blocking assembly includes:

third right rocker arm 178; and

The right front blocking plate 1781 and the right rear blocking plate 1782 fixedly connected to the front and rear ends of the third right rocker arm 178 respectively,

Wherein, near the middle section of the first right rocker arm 176 and the third right rocker arm 178, a right driving fulcrum and a right follow-up fulcrum are respectively provided, and the end of the second right rocker arm 177 is connected with the right front blocking plate 1781 or the right rear blocking plate. 1782 turn connection.

Referring to Fig. 8, Fig. 9 and Fig. 11, the left motor housing chamber 131 and the right motor housing chamber 132 are respectively provided with a left pumping chamber 133 and a right pumping chamber 136 at intervals, wherein the left pumping chamber 133 is connected to the right motor housing chamber 132. The air extraction chambers 136 are connected, and the left air extraction chamber 133 and the right air extraction chamber 136 are spaced apart from the air confluence chamber 134 .

Further, the bottom wall of the left motor accommodation chamber 131 and the bottom wall of the right motor accommodation chamber 132 are respectively provided with a left ventilation hole 1311 a and a right ventilation hole 1321 a leading to the left air extraction chamber 133 and the right air extraction chamber 136 .

Referring to Figures 1 to 3, the bottom wall of the left pumping chamber 133 and the bottom wall of the right pumping chamber 136 are respectively provided with a left pumping hole 1331 and a right pumping hole 1361 communicating with the outside world, a left front sealing plate 1741 and a left rear sealing plate. The blocking disk 1742 is located directly below the left air blowing hole 1341 and the left air suction hole 1331 respectively, and the third left rocker arm 174 is driven by the left switching motor 171 to reciprocate around the left follow-up fulcrum, so that the left front blocking disk 1741 and the The left rear blocking plate 1742 alternately seals the left air blowing hole 1341 and the left air extraction hole 1331 respectively, and the right front sealing plate 1781 and the right rear blocking plate 1782 are located directly below the right air blowing hole 1342 and the right air extraction hole 1361 respectively. The third right rocker arm 178 is driven by the right switching motor 175 to reciprocate around the right follow-up fulcrum, so that the right front blocking disk 1781 and the left rear blocking disk 1742 respectively close the right air blowing hole 1342 and the right air extraction hole 1361. Alternate closures such that:

When the left blowing hole 1331 and the right blowing hole 1342 were closed, the left blowing hole 1341 and the right blowing hole 1361 were opened; and

When the left blowing hole 1331 and the right blowing hole 1342 were opened, the left blowing hole 1341 and the right blowing hole 1361 were closed.

Further, the lower opening of the left air extraction hole 1331 and the lower opening of the right air extraction hole 1361 are respectively provided with a left sealing lip 1331a and a right sealing lip 1361a, wherein the left sealing lip 1331a is integrally combined at the edge of the left air extraction hole 1331 The left air extraction hole 1331 extends vertically downward along the edge of the left air extraction hole 1331, and the right sealing lip 1361a is integrally combined with the right air extraction hole 1361 at the edge of the right air extraction hole 1361 and extends along the edge of the right air extraction hole 1361 Extends vertically downwards.

Referring to Figures 12 to 14, the air channel switching channel 135 includes:

The front wall plate 1351 adjoining the front side wall of the left air guide channel 1312 and the front side wall of the right air guide channel 1322; and

The rear wall plate 1352 that is in contact with the rear side wall of the left air guide channel 1312 and the rear side wall of the right air guide channel 1322,

Wherein, the front wall plate 1351 and the rear wall plate 1352 are parallel and separated by a certain distance, and the bottom of the front wall plate 1351 and the rear wall plate 1352 is provided with a bottom wall plate between them, and a confluence port 1353 is opened on the bottom wall plate. , the confluence port 1353 communicates with the airflow confluence chamber 134 . Referring to Fig. 12, the air flow in the left guide air channel 1312 flows along the direction of arrow A, and is introduced into the air flow confluence chamber 134 through the confluence port 1353; the air flow in the right guide air channel 1322 flows along the direction of arrow B, and passes through Port 1353 leads into airflow confluence chamber 134 .

Referring to Fig. 13, an air channel switching assembly 18 is erected between the front wall plate 1351 and the rear wall plate 1352, and the air channel switching assembly 18 includes:

The left windshield 181 for selectively blocking the end of the air duct of the left guide air duct 1312; and

The right windshield 182 for selectively blocking the end of the air channel of the right guide air channel 1322,

Wherein, only the left air guiding channel 1312 is blocked by the left windshield 181 or the right air guiding channel 1322 is blocked by the right windshield 182 at the same time.

Further, the left windshield 181 includes:

a vertically downwardly extending left fairing body; and

the left rotating shaft arranged on the top of the main body of the left windshield,

The right windshield 182 includes:

the right fairing body extending vertically downward; and

the right rotating shaft arranged on the top of the right windshield main body,

Wherein, the left rotating shaft and the right rotating shaft are both rotatably connected between the front wall board 1351 and the rear wall board 1352 .

Referring to Fig. 7 and Fig. 8, the caliber size of the left guide air channel 1312 at the end of the air channel is smaller than the distance between the front wall plate 1351 and the rear wall plate 1352, so that the left windshield 181 guides the air channel to the left The tendency of internal rotation of 1312 is limited by the left guide air duct 1312.

Further, the caliber size of the right guide air duct 1322 at the end of the air duct is smaller than the distance between the front wall plate 1351 and the rear wall plate 1352, so that the right windshield 182 rotates toward the inside of the right guide air duct 1322 The trend is limited by the right diversion air duct 1322 .

working principle:

Referring to Fig. 3 and Fig. 4, usually the Hypa is arranged directly below the motor base 13. When the left air extraction hole 1331 and the right air blowing hole 1342 are closed, the left air blowing hole 1341 and the right air extraction hole 1361 are opened as an example for illustration. At this time, the left motor 161 and the right motor 162 all suck the air directly under the right motor accommodation chamber 132 through the right air extraction hole 1361, and the clean airflow after filtering is generated in the left diversion air duct 1312 and the right diversion air duct 1322, and the dust Chips are filtered by the Hypa directly below the right motor accommodation chamber 132, because the path for the left motor 161 to extract air from the right air hole 1361 is much longer than the path for the right motor 162 to extract air from the right air hole 1361, so that the left The air flow in the air guide channel 1312 is much smaller than the air flow in the right air guide channel 1322, so that the right windshield 182 is affected by the continuous air flow in the right air guide channel 1322 and rotates to the left until it is flattened. The left windshield 181 is affected by the continuous airflow in the right air guide channel 1322 and rotates to the left to a vertically drooping state and blocks the left air guide channel 1312, and the air flow is introduced into the air flow confluence chamber 134 through the confluence port 1353 Since the right air blowing hole 1342 in the air flow confluence chamber 134 is closed and the left air blowing hole 1341 is opened, the air after confluence is guided through the left air blowing hole 1341 and blows to the upper surface of the Hypa just below the left motor accommodation chamber 131, Thereby, the dust dust adsorbed on the lower surface of the Hypa is blown off and removed... After working for a period of time, the left switching motor 171 and the right switching motor 175 act, so that the left air extraction hole 1331 and the right air blowing hole 1342 are opened, and the left air blowing hole 1341 and the right air blowing hole 1342 are opened. The right air extraction hole 1361 is closed, and the flow sequence of the air thereafter is similar to that described above, and will not be repeated here...and so on and on until the vacuum cleaner completes the cleaning operation.

The number of devices and the scale of processing described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

Although the embodiment of the utility model has been disclosed as above, it is not limited to the use listed in the specification and implementation, it can be applied to various fields suitable for the utility model, and for those familiar with the art, it can be Further modifications can readily be effected, so the invention is not limited to the specific details and examples shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims (13)

1. An air duct quick switching device for a Hypa self-cleaning vacuum cleaner, characterized in that it includes: motor base (13); and The ventilation hole switching mechanism (17) located in the motor base (13), Wherein, motor base (13) comprises: The left motor accommodation room (131) and the right motor accommodation room (132) are adjacent and arranged at intervals; A left guide air duct (1312) communicated with the left motor accommodation chamber (131); and The right guide air duct (1322) that communicates with the right motor accommodation chamber (132), the left guide air duct (1312) and the right guide air duct (1322) form a certain angle, so that the left guide air duct ( 1312) and the right guide air duct (1322) meet and communicate with each other at the ends of the respective air ducts, and the left motor accommodation chamber (131) and the right motor accommodation chamber (132) are provided with an air flow confluence chamber (134) at intervals, The ventilation hole switching mechanism (17) is located in the air flow confluence chamber (134). 2. The air duct quick switching device for Hypa self-cleaning vacuum cleaner according to claim 1, characterized in that, the plane where the bottom wall of the air flow confluence chamber (134) is located is located between the left motor accommodation chamber (131) and the right motor The bottom wall of the accommodation chamber (132) is below the plane. 3. The air channel quick switching device for Hypa self-cleaning vacuum cleaner according to claim 2, characterized in that, the intersection is formed with a connecting left air guiding channel (1312) and a right guiding air channel (1322) ), the air duct switching channel (135) extends to the inside of the air confluence chamber (134) and is spaced a certain distance from the bottom wall of the air confluence chamber (134), and the bottom wall of the air confluence chamber (134) The wall is provided with a left blowing hole (1341) and a right blowing hole (1342) connected to the outside world. 4. The air duct quick switching device for Hypa self-cleaning vacuum cleaner according to claim 3, characterized in that, the ventilation hole switching mechanism (17) comprises: Adjacent and juxtaposed left switching motor (171) and right switching motor (175); Sequentially rotate the connected first left rocker arm (172) and second left rocker arm (173); and Turn the connected first right rocker arm (176) and second right rocker arm (177) in sequence, Wherein, the left switching motor (171) and the right switching motor (175) are both located directly above the airflow confluence chamber (134), and the front end of the first left rocker arm (172) is rotationally connected to the power output end of the left switching motor (171). , the front end of the first right rocker arm (176) is rotatably connected with the power output end of the right switching motor (175). 5. The air channel quick switching device for Hypa self-cleaning vacuum cleaner according to claim 4, characterized in that, after the end of the second left rocker arm (173) passes through the left blowing hole (1341), it is rotationally connected with For the left air hole blocking assembly, the end of the second right rocker arm (177) passes through the right blow hole (1342) and is rotationally connected with the right air hole blocking assembly. 6. The air duct quick switching device for Hypa self-cleaning vacuum cleaner according to claim 5, characterized in that, the left air hole blocking assembly comprises: third left rocker arm (174); and The left front blocking plate (1741) and the left rear blocking plate (1742) fixedly connected to the front and rear ends of the third left rocker arm (174) respectively, Wherein, the middle section of the first left rocker arm (172) and the third left rocker arm (174) is respectively provided with a left driving fulcrum and a left follow-up fulcrum, and the end of the second left rocker arm (173) is connected with the left front blocking plate ( 1741) or the left rear blocking disc (1742) is rotationally connected. 7. The air duct quick switching device for Hypa self-cleaning vacuum cleaner according to claim 6, characterized in that, the right air hole blocking assembly comprises: third right rocker arm (178); and The right front blocking plate (1781) and the right rear blocking plate (1782) respectively fixedly connected to the front and rear ends of the third right rocker arm (178), Wherein, near the middle section of the first right rocker arm (176) and the third right rocker arm (178), a right driving fulcrum and a right follow-up fulcrum are respectively provided, and the end of the second right rocker arm (177) is connected with the right front blocking plate ( 1781) or the right rear blocking disc (1782) is rotationally connected. 8. The air duct quick switching device for Hypa self-cleaning vacuum cleaner according to claim 7, characterized in that, right below the left motor accommodation chamber (131) and the right motor accommodation chamber (132) are separately provided with Left pumping chamber (133) and right pumping chamber (136), wherein, left pumping chamber (133) is connected with right pumping chamber (136), left pumping chamber (133) and right pumping chamber (136) ) and the air flow confluence chamber (134) are all spaced apart. 9. The air duct quick switching device for Hypa self-cleaning vacuum cleaner according to claim 8, characterized in that, the bottom wall of the left motor accommodation chamber (131) and the bottom wall of the right motor accommodation chamber (132) are respectively provided with There are left ventilation holes (1311a) and right ventilation holes (1321a) leading to the left air extraction chamber (133) and the right air extraction chamber (136). 10. The air channel quick switching device for Hypa self-cleaning vacuum cleaner according to claim 9, characterized in that, the bottom wall of the left air extraction chamber (133) and the bottom wall of the right air extraction chamber (136) respectively There are left air extraction holes (1331) and right air extraction holes (1361) connected to the outside world, and the left front sealing plate (1741) and left rear sealing plate (1742) are respectively located in the left air blowing hole (1341) and the left air extraction hole (1331) Right below the left rocker arm (174), driven by the left switching motor (171), it rotates reciprocally around the left follow-up fulcrum, so that the left front blocking plate (1741) and the left rear blocking plate (1742) The left air blowing hole (1341) and the left air extraction hole (1331) are respectively closed alternately, and the right front blocking plate (1781) and the right rear blocking plate (1782) are respectively positioned at the right air blowing hole (1342) and the right air extraction hole ( 1361), the third right rocker arm (178) is driven by the right switching motor (175) to reciprocate around the right follow-up fulcrum, so that the right front blocking plate (1781) and the left rear blocking plate ( 1742) alternately close the right air blowing hole (1342) and the right air extraction hole (1361) respectively, so that: When the left blowing hole (1331) and the right blowing hole (1342) were closed, the left blowing hole (1341) and the right blowing hole (1361) were opened; and When the left blowing hole (1331) and the right blowing hole (1342) are opened, the left blowing hole (1341) and the right blowing hole (1361) are closed. 11. The air channel quick switching device for Hypa self-cleaning vacuum cleaner according to claim 10, characterized in that the lower opening of the left air extraction hole (1331) and the lower opening of the right air extraction hole (1361) are respectively provided with A left sealing lip (1331a) and a right sealing lip (1361a), wherein the left sealing lip (1331a) is integrally combined with the left air extraction hole (1331) at the edge of the left air extraction hole (1331) and along the left air extraction hole (1331 ), the right sealing lip (1361a) is integrally combined with the right air extraction hole (1361) at the edge of the right air extraction hole (1361) and vertically along the edge of the right air extraction hole (1361) Extend down. 12. The air duct quick switching device for Hypa self-cleaning vacuum cleaner according to claim 3, characterized in that the air duct switching channel (135) comprises: A front wall plate (1351) adjoining the front side wall of the left air guide channel (1312) and the front side wall of the right air guide channel (1322); and a rear wall panel (1352) abutting against the rear side wall of the left air guide channel (1312) and the rear side wall of the right air guide channel (1322), Wherein, the front wall plate (1351) and the rear wall plate (1352) are parallel and separated by a certain distance, and the bottom of the front wall plate (1351) and the rear wall plate (1352) is provided with a bottom wall plate between them, so the bottom A confluence port (1353) is opened on the wall plate, and the confluence port (1353) communicates with the air flow confluence chamber (134). 13. The air duct quick switching device for Hypa self-cleaning vacuum cleaner according to claim 12, characterized in that an air duct switching assembly (18) is erected between the front wall (1351) and the rear wall (1352) , the air duct switching assembly (18) includes: A left windshield (181) for selectively blocking the air duct end of the left guide air duct (1312); and The right windshield (182) for selectively blocking the air duct end of the right guide air duct (1322).