WO2014008754A1

WO2014008754A1 - Vacuum cleaner

Info

Publication number: WO2014008754A1
Application number: PCT/CN2013/000821
Authority: WO
Inventors: 朱江萍
Original assignee: 天佑电器（苏州）有限公司
Priority date: 2012-07-12
Filing date: 2013-07-05
Publication date: 2014-01-16
Also published as: CN103536248A; CN103536248B

Abstract

Disclosed is a vacuum cleaner, comprising an electric motor (1) for suctioning an air flow. The air flow flows in an air flow channel in the cleaner, and passes in sequence through the electric motor (1), an electric motor air discharge port (12) and a discharged air filter (2). An air discharging port (41), an air blowing port (44) and a conversion valve (3) are provided downstream of the discharged air filter (2). The air discharging port (41) is located beside the air blowing port (44), and the conversion valve (3) is located in the air blowing port (44) and can slide in the air blowing port (44) to open or close the air discharging port (41) and the air blowing port (44). The vacuum cleaner further makes it possible to filtrate the air flow discharged out of the cleaner, and has the function of switching between air discharging and air blowing, and has a simple structure and low cost.

Description

Vacuum cleaner

Technical field

The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner having a blowing function.

Technology

The vacuum cleaner only has dust from the outside through the airflow, and is filtered by the filter system of the vacuum cleaner, dust and the like are left in the vacuum cleaner, and the filtered airflow is exhausted through the air duct. A vacuum cleaner having a blowing function means that the airflow discharged from the vacuum cleaner can be reused, so that the airflow is collected and blown out from the air blowing port. In the existing vacuum cleaner with a blow function, one is that the air outlet is directly a circular air outlet structure that can be engaged with the hose, and the air is directly inserted into the air outlet when blowing, so that the air is blown, but when the air is not blown The airflow discharged from the air outlet is concentrated and has no guiding. This strong wind with the temperature of the motor blows on the person, which may cause burns or uncomfortable feelings, and may cause secondary pollution when blown on the ground or furniture; A blowing function is a blowing port with a cover plate. When the blowing function is used, the hose is inserted into the air outlet. At this time, the hose will top the cover of the air outlet, and after the mouthpiece cover is rotated 90 degrees, the normal operation can be blocked. The wind path of the wind makes the air blow, but this structure is not convenient to install the air filter system, so it is not suitable for household, dry, medium and high-end vacuum cleaners; there is also a hair dryer function to design two air outlets for the wind outlet. One for the air, one for the hair, usually the mouth is covered with a lid, the lid is removed when the hair is blown, and then the mouth is inserted, and the air outlet is still blowing when blowing. That is to say, it greatly affects the blowing flow, and it needs to manually rotate the blowing cover, which is cumbersome to operate and is not suitable for users. In addition, the wind blown by the above three schemes is unfiltered, and contains dregs such as carbon powder, causing secondary pollution, which is not conducive to human health. Summary of the invention

The invention provides a vacuum cleaner having an air outlet filtering system and capable of automatically switching the filtered airflow in the air and air outlets. The technical solution is that the vacuum cleaner comprises a motor for sucking airflow, and the airflow is in the inner edge of the vacuum cleaner. The air flow channel flows, the air flow sequentially passes through the motor, the motor exhaust vent and the air outlet filter, and the air outlet filter is provided with an air outlet, a air outlet and a switching valve, and the air outlet is located at a side of the air outlet, the conversion The valve is located in the air outlet and can be slid in the air outlet to open or close the air outlet and the air outlet.

Preferably, the vacuum cleaner further has a hose connector. When the hose connector is inserted into the air outlet, the switching valve opens the air outlet to close the air outlet. When the hose is pulled out, the switching valve automatically resets and closes the air outlet to open the air outlet. .

Preferably, the air outlet is located in an axial direction of the air outlet of the motor.

Preferably, a grid is further disposed downstream of the air outlet of the vacuum cleaner to guide the exhaust airflow. Preferably, the vacuum cleaner is further provided with an air outlet plate, the air outlet plate has a side wall, the side wall constitutes a wind chamber, and the air outlet port is a gap on the side wall.

Preferably, the switching valve comprises a valve body and an elastic member.

Preferably, the valve body is provided with a baffle, and the baffle can open or close the air guiding port.

Preferably, the valve body is provided with a side plate, and the side plate can open or close the air outlet.

Preferably, the switching valve further has an abutting portion, and the elastic member is between the abutting portion and the valve body.

Preferably, the valve body is provided with a hook so that the valve body is restricted in the air outlet.

The vacuum cleaner adopting the above technical solution can filter the dust such as carbon powder contained in the airflow discharged from the vacuum cleaner, thereby avoiding secondary pollution of the air, and the setting of the switching valve enables the airflow to switch between the air blow U and the air outlet. The switching valve has a simple structure and a low manufacturing cost.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a partial cross-sectional view of a vacuum cleaner in accordance with an embodiment of the present invention.

Figure 2 is a partially exploded view of the vacuum cleaner of the embodiment of the present invention.

Figure 3 is a schematic view of the valve body of the vacuum cleaner of the embodiment of the present invention.

4 is a schematic view of an air outlet plate of a vacuum cleaner according to an embodiment of the present invention.

Figure 5 is a partial cross-sectional view showing a non-air blower vacuum cleaner in accordance with an embodiment of the present invention.

Figure 6 is a partial cross-sectional view showing the non-air blowing state cleaner of the embodiment of the present invention.

Fig. 7 is a partial perspective view of the non-air blowing state cleaner according to the embodiment of the present invention.

Figure 8 is a partial cross-sectional view showing a vacuum cleaner of the embodiment of the present invention.

Figure 9 is a partial cross-sectional view showing a vacuum cleaner of the embodiment of the present invention.

Figure 10 is a partial perspective view of the blower vacuum cleaner of the embodiment of the present invention.

detailed description

The present invention will be further described in conjunction with the specific embodiments.

FIG. 14 is a schematic view showing the vacuum cleaner motor and its downstream structure of the present embodiment. The vacuum cleaner of the present invention comprises a motor 1, an air outlet filter 2, a switching valve 3 and an air outlet plate 4, and the motor 1 sucks the external airflow of the vacuum cleaner into the vacuum cleaner. The airflow flows along the airflow passage within the cleaner, which is the flow path of the airflow within the cleaner. The outlet filter 2 is located in the motor 1 downstream, that is, the airflow in the vacuum cleaner passes through the motor exhaust vent 12 through the motor exhaust vent 12, and the main function of the outlet filter 2 is to have passed through the main filtration system (for example, filtration disposed in the dust hopper of the vacuum cleaner) The filtered airflow, especially the fine dust particles entrained in the airflow after the motor, is filtered out so that the airflow exiting the vacuum cleaner does not cause secondary pollution. The outlet filter 2 can be HEPA or sponge. Downstream of the outlet filter 2 is provided with a blow port, an air outlet and a switching valve. The air outlet is located in the axial direction of the motor air outlet, that is, the air outlet is in the direction of the motor air outlet axis, on the motor axis or near the motor axis, so that the air blown by the air outlet and the air outlet of the motor air outlet are arranged. In the same direction, the loss of airflow is reduced. The air outlet is located at the side of the air outlet, and the switching valve 3 is disposed on the air outlet plate 4, so that the vacuum cleaner can automatically switch between the air blowing state and the non-air blowing state. The air outlet plate 4 is a detachable cover plate at the rear of the air outlet of the vacuum cleaner motor. The air outlet plate 4 is provided with a side wall 45, and the side wall 45 encloses a wind chamber 46. The air chamber 46 is substantially square. The airflow filtered by the air outlet filter 2 enters the air chamber 46. The switching valve 3 includes a valve body 31 and an elastic member. In the embodiment, the elastic member is a spring 32, and the switching valve 3 is located in the axial direction of the motor exhaust port 12. A spring 32 is provided between the wide body 31 and the air outlet plate 4, and the spring 32 enables the valve body 31 to be automatically reset when the air blowing and non-air blowing states are switched. The air outlet plate 4 is provided with a air outlet 44 and an air outlet 41. The air outlet is disposed on the side wall 45, and the air outlet 41 is a notch on the side wall 45. The axis 410 of the air outlet 41 is perpendicular to the motor axis 10. The air outlet 44 is located in the direction of the motor axis 10, that is, the airflow discharged from the motor air outlet 12 can be blown through the air outlet without switching directions. The air outlet 44 is a through hole that communicates with the air chamber 46. The air outlet 44 is substantially circular, and is divided into three chambers by the rib 47, and includes a first air guiding opening 441, a second air guiding opening 442 and a third air guiding opening 443, and the valve body 31 is provided with a groove. 316 cooperates with the ribs 47 to move the valve body 31 in the direction of the motor axis, and the ribs 47 limit the valve body 31. The ribs 47 are located between the abutting portion 445 and the annular wall 444 of the air outlet 44. One end is fixed to the annular wall 444 of the air outlet 44, and the other end is fixed to the abutting portion 445. The spring 32 is located between the abutting portion 445 and the valve body 31, that is, the end of the spring 32 abuts against the abutting portion 445 and the other end abuts against the valve body 31. The first, second and second air guiding openings are the same air guiding opening, and the air guiding port introduces the air flow into the air blowing port 44. The air outlet plate 4 is further provided with a grid plate 43. The airflow passes through the air outlet 41 and then is dispersed to the outside through the grid plate 43. The grid plate is arranged to guide the discharged airflow. The valve body 31 is located in the air outlet 44. The valve body includes a first baffle '311, a second baffle 312, and a third baffle 313. The three baffles are baffles of the same shape, respectively corresponding to the An air guiding port 441, a second air guiding port 442 and a third air guiding port 443. The valve body 31 further includes a side plate 315 which is on the side of the third baffle 313 and is integral with the third baffle 313. The side plate 315 functions to smash and close the air outlet 41. Since the side plate 315 and the third baffle 313 are integrated, the third air guiding port 443 is closed, and the air flow does not flow through the third air guiding port 443 regardless of the blowing state or the non-blowing state. The spring 32 is end-mounted at an abutment portion 445 in the middle of the air outlet 44. The valve body 31 is mounted in the air outlet 44 and compresses the spring 32. The hook 314 on the valve body 31 is caught on the annular wall of the air outlet 44. 44 1 is upper, so the spring does not eject the valve body 31 out of the air outlet, and the valve body 31 can slide in the air outlet. Figure 5-7 is a schematic view of the vacuum cleaner of the present embodiment when it is operated in a non-air blowing state, and the direction of the arrow indicates the flow direction of the airflow. After the vacuum cleaner is started, the motor rotates to form a negative pressure in the vacuum cleaner. The external airflow of the vacuum cleaner enters the vacuum cleaner through the air inlet (not shown). The airflow usually carries various dust or dirt, and the airflow entering the vacuum cleaner passes through the filter. The motor, the airflow passing through the motor passes through the air outlet filter 2 to filter out the dust carried in the airflow again, preventing the airflow discharged from the vacuum cleaner from causing secondary pollution, and the airflow filtered by the air outlet filter 2 enters the air chamber 46. In the non-air blowing state, the spring 32 recovers the force, the hook 3H is stuck on the annular wall 444, and the first baffle 31 1 , the second baffle 312 and the third baffle 313 of the switching valve 3 will be first The air guiding port 441, the second air guiding port 442 and the third air guiding port 443 are blocked, and at the same time, the air outlet 41 is smashed, the airflow in the air chamber 46 is discharged from the air outlet 41, and the airflow flows out of the air chamber 46 and passes through the grid 43. Drain the vacuum cleaner. In the non-air blowing state, the airflow is dispersed and discharged to the vacuum cleaner.

8 is a schematic view of the vacuum cleaner of the present embodiment when the vacuum cleaner is operating. When the user wants to use the vacuum cleaner function, the vacuum cleaner hose connector 6 is inserted into the air outlet 44, and the wall 62 of the front end of the hose connector 6 pushes the switching valve 3. The spring 32 is compressed one by one until the card slot 48 on the air outlet plate 4 engages with the projection 61 on the hose connector 6. At this time, the first baffle 311, the second baffle 312, and the third baffle 313 of the switching valve 3 are pushed apart, and the side plate 315 is pushed up to block the air outlet 41, and the first air guiding port 441 and the second air guiding port at this time. 442 snoring, the air outlet 41 is closed, the airflow in the air chamber 46 is collected to the air outlet 44 through the first air guiding port and the second air guiding port, and the air flow in the air blowing port 44 passes through the hose joint 6 through the hose or its fitting The cleaning is carried out by means of a blower, which is a joint connected to one end of the hose for engaging with an interface on the vacuum cleaner, which may be a joint integral with the hose or detachable.

The above embodiment is only a preferred embodiment of the present invention, and the air blowing and the outgoing air are switched by a switching valve provided downstream of the vacuum cleaner motor, and the switching valve can be automatically slid and reset by providing an elastic member (such as a spring in the embodiment). The user can manually operate the switching valve, and only need to insert or pull out the hose joint to realize the conversion of air blowing or air outlet, which is convenient for the user to use, and the switching valve has the advantages of simple structure, small volume and low manufacturing cost.

Claims

claims

1. A vacuum cleaner, including a motor for sucking airflow. The airflow flows along the airflow channel in the vacuum cleaner. The airflow passes through the motor, the motor exhaust port and the air outlet filter in sequence. It is characterized in that: there is an airflow filter downstream of the air outlet filter. The air outlet, the blowing port and the switching valve are located on the side of the blowing port. The switching valve is located in the blowing port and can slide in the blowing port to turn on or close the air outlet and the blowing port.

2. The vacuum cleaner according to claim 1, characterized in that: the vacuum cleaner also has a hose connector. When the hose connector is inserted into the blowing port, the switching valve turns off the blowing port and closes the air outlet. When the hose is pulled out, , the switching valve automatically resets to close the air blowing port but not open the air outlet.

3. The vacuum cleaner according to claim 1, characterized in that: the air blowing port is located in the axial direction of the motor exhaust port.

4. The vacuum cleaner according to claim 1, characterized in that: a grid is provided downstream of the air outlet of the vacuum cleaner to guide the exhaust air flow.

5. The vacuum cleaner according to claim 1, characterized in that: the vacuum cleaner is further provided with an air outlet plate, the air outlet plate has a side wall, the side wall constitutes an air cavity, and the air outlet is a side wall gap on.

6. The vacuum cleaner according to claims 1-5, characterized in that: the switching valve includes a valve body and an elastic member.

7. The vacuum cleaner according to claim 6, characterized in that: the valve body is provided with a baffle, and the baffle can open or close the air guide opening.

8. The vacuum cleaner according to claim 6, characterized in that: the valve body is provided with a side plate, and the side plate can open or close the air outlet.

9. The vacuum cleaner according to claim 6, characterized in that: the switching valve further has a resisting portion, and the elastic member is between the resisting portion and the valve body.

10. The vacuum cleaner according to claim 6, characterized in that: the valve body is provided with a hook, so that the valve body is restricted in the blowing port.