CN213030578U - Multi-fan dust collector - Google Patents

Abstract

The utility model discloses a multi-fan dust collector, include: a barrel cover; the bung includes: a middle shell; the middle shell divides the inside of the barrel cover into a first cavity and a second cavity; the first cavity is communicated to the air inlet through a dust collection filter screen; the second cavity is communicated to the air outlet; the middle shell is provided with a fan seat for installing a fan; the bottom of the fan base is provided with a guide groove; a communicating hole for communicating the first cavity and the second cavity is formed at the bottom of the guide groove; the multi-fan vacuum cleaner further comprises: a closure member; the sealing cover part slides in the height direction in the guide groove; the fan is positioned above the sealing cover piece; the cover member includes: a cover plate portion and a plurality of support rib portions; the area of the cover plate part is larger than that of the communicating hole and smaller than the section area of the guide groove; when the cover sealing piece seals the communicating hole, the bottom of the cover sealing plate part is attached to the groove bottom of the guide groove; the support rib part is positioned at the top of the cover sealing plate part and protrudes out of the peripheral surface of the cover sealing plate part. The utility model discloses an useful part lies in, can the air current passageway of the fan that does not open by self-sealing.

Description

Multi-fan dust collector

Technical Field

The utility model relates to a multi-fan dust collector.

Background

The barrel type dust collector is a dust removing tool and is mostly used by cleaning companies, hotels and office buildings. The barrel type dust collector consists of a head with power and a lower dust collecting barrel for collecting dust. The bucket cleaner head includes: bung, fan and dust absorption filter screen. The fan and the dust collection filter screen are mounted to the barrel cover. The fan provides dust collection power.

For the bucket type dust collector with a plurality of fans, the power control can be realized by opening part of the fans. However, since the unopened fan is still in the airflow path, part of the airflow may pass through the airflow channel of the unopened fan to cause airflow backflow, which affects efficiency and causes power loss.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of prior art, the utility model provides a multi-fan dust catcher can the air current passageway of the fan that does not open by self-sealing, avoids backward flow, raises the efficiency.

In order to achieve the above object, the utility model adopts the following technical scheme:

a multi-blower vacuum cleaner comprising: the dust collecting barrel, the barrel cover, the plurality of fans and the dust collecting filter screen are used for filtering dust; the dust absorption filter screen and the fan are arranged on the barrel cover; the barrel cover is detachably arranged on the dust collecting barrel; the multi-fan dust collector is provided with an air inlet for collecting dust and an air outlet for discharging air; the fan drives airflow to enter the dust collection barrel from the air inlet, and the airflow is filtered by the dust collection filter screen and then discharged from the air outlet;

the bung includes: a middle shell; the middle shell divides the inside of the barrel cover into a first cavity and a second cavity; the first cavity is communicated to the air inlet through a dust collection filter screen; the second cavity is communicated to the air outlet; the middle shell is provided with a fan seat for installing a fan; the bottom of the fan base is provided with a guide groove; a communicating hole for communicating the first cavity and the second cavity is formed at the bottom of the guide groove; the multi-fan vacuum cleaner further comprises: a cover member for covering the communication hole to close the communication hole; the sealing cover part slides in the height direction in the guide groove; the fan is positioned above the sealing cover piece; the cover member includes: a cover plate portion and a plurality of support rib portions; the area of the cover plate part is larger than that of the communicating hole and smaller than the section area of the guide groove; when the cover sealing piece seals the communicating hole, the bottom of the cover sealing plate part is attached to the groove bottom of the guide groove; the support rib part is positioned at the top of the cover sealing plate part and protrudes out of the peripheral surface of the cover sealing plate part.

Further, the multi-fan vacuum cleaner further comprises: a seal ring; the sealing ring is arranged in the fan base; the sealing ring is positioned between the fan seat and the fan.

Further, the cover member has an open position to open the communication hole and a closed position to close the communication hole with respect to the guide groove; the closure member slides between an open position and a closed position; when the cover member is located at the open position, the support rib portion is in contact with the casing of the blower.

Further, the cover member is moved from the closed position to the open position upon activation of the blower above the cover member.

Further, the fan above the closing cap piece is not started, and when other fans in 3 fans are started, the closing cap piece is adsorbed by negative pressure in the first cavity to enable the closing cap plate portion to be attached to the bottom of the guide groove.

Further, the cover member slides along the axis of the fan within the guide groove.

Further, the axis of the fan coincides with the axis of the cover member.

Further, the support rib portion is recessed downward in a projection range of an airflow inlet of the fan.

Further, the cover plate part is disc-shaped; the communicating hole is a circular hole.

Further, the number of the support ribs is 3; 3 support rib portions are all 120 degrees apart on the circumference.

The utility model discloses an useful part lies in, can the air current passageway of the fan that does not open by self-sealing, does not need manual operation to open and close convenient to use.

Drawings

FIG. 1 is a schematic view of a vacuum cleaner according to the present invention;

FIG. 2 is a schematic view of a portion of the construction of the cleaner of FIG. 1;

FIG. 3 is a schematic view of the upper cover shell and blower pipe mount of the vacuum cleaner of FIG. 1 being inserted;

FIG. 4 is a schematic view of a barrel mount of the vacuum cleaner of FIG. 1;

FIG. 5 is a schematic view of another perspective of the barrel mount of FIG. 4;

FIG. 6 is a perspective view of the structure of FIG. 2 with the upper cover housing and dust collection screen removed;

FIG. 7 is a perspective view from another perspective of the structure of FIG. 6;

FIG. 8 is a plan view of the structure of FIG. 6;

FIG. 9 is a plan view from another perspective of the structure of FIG. 6;

FIG. 10 is a cross-sectional view of the structure of FIG. 9, showing the closure member in a closed position;

FIG. 11 is a schematic view of the closure of the structure of FIG. 10 in an open position;

FIG. 12 is an exploded view of the structure of FIG. 6;

FIG. 13 is an exploded view from another perspective of the structure of FIG. 12;

FIG. 14 is a bottom plan view of the middle housing and fan mounting of the structure of FIG. 6;

FIG. 15 is a top plan view of the mounting of the center housing and fan of the structure of FIG. 14;

FIG. 16 is an exploded view of the structure of FIG. 14;

FIG. 17 is a schematic view of the closure member of the structure of FIG. 16;

fig. 18 is a schematic view of the closure member of fig. 17 from another perspective.

The dust collector 100, the dust collecting barrel 10, the barrel cover 20, the lower cover shell 21, the middle shell 22, the limiting bump 221, the fan seat 222, the guide groove 2221, the communication hole 2222, the wind gathering cover shell 23, the wind gathering guide channel 231, the upper cover shell 24, the track groove 241, the fan 30, the cover piece 31, the cover plate portion 311, the support rib portion 312, the seal ring 32, the dust collection filter screen 40, the wind guide cover 50, the blowing pipe mounting seat 60, the insertion rib 61, the positioning convex rib 62, the positioning groove 63, the bottom frame 71, the handle rod 72, the channel cover 80, the rotating shaft 81, the cover plate portion 82, the pressing operation portion 83, the air inlet 101, the air outlet 102, the first cavity 103, the second cavity 104, the air inlet channel 105, the channel inlet 106, the channel outlet 107, the first straight channel section 108, the communication section 109, the second straight channel section 110 and the inclined top surface.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 18, a vacuum cleaner 100 includes: a dust collecting barrel 10, a barrel cover 20, a fan 30 and a dust collecting filter screen 40. Specifically, the cleaner 100 is a bucket cleaner. The cleaner 100 is provided with a blowing function and thus may be referred to as a bucket cleaner with a blowing function.

A dust suction screen 40 and a fan 30 are mounted to the tub cover 20. The tub cover 20 is detachably mounted to the dust collection tub 10. The dust collecting tub 10 is formed with an air inlet 101 for intake air.

As a preferred embodiment, the tub cover 20 includes: a lower cover shell 21, a middle shell 22, a wind-gathering cover 23 and an upper cover shell 24. The lower cover housing 21, the middle housing 22, the wind-gathering cover 23, and the upper cover housing 24 are fixed as a single body.

A dust suction screen 40 is mounted to the lower cover housing 21. The fan 30 is mounted to the middle housing 22. The wind-collecting housing 23 is formed with an outlet 102 for outlet wind. The lower cover housing 21 and the middle housing 22 together form a first chamber 103. The middle shell 22 and the wind-collecting cover 23 together form a second chamber 104. The fan 30 drives the airflow from the air inlet 101 into the dust collecting barrel 10, passes through the dust collecting screen 40, passes through the first cavity 103 and the second cavity 104, and then is discharged from the air outlet 102.

The wind collecting cover 23 is formed with two wind collecting guide passages 231. The wind-gathering guide channel 231 serves to gather the airflow and guide the airflow toward the wind outlet 102. Specifically, the wind collecting guide channel 231 is arc-shaped and two wind collecting guide channels 231 are located at both sides of the wind outlet 102. The fan 30 is at least partially located between the two wind collecting guide channels 231. When one fan 30 is used, the fan is at least partially positioned between the two wind-collecting guide channels 231. When a plurality of fans 30 are employed, at least a portion of at least one of the plurality of fans is located between the two wind-collecting guide channels 231. Specifically, the number of the fans 30 is 3, and one fan 30 is located between the two wind collecting guide channels 231. The wind collecting guide channel 231 gradually increases in height and gradually shrinks in width in the moving direction of the airflow.

As a preferred embodiment, the bucket cleaner with blowing function 100 further includes: a wind scooper 50 and a blower pipe mount 60. The barrel mount 60 is connected to the barrel to perform a blowing function. The wind scooper 50 is fixed to the wind collecting cover 23 and covers the wind outlet 102. The air guide cover 50 is formed with a plurality of air guide plates for guiding the air flow to move obliquely downward. The blower pipe mount 60 is inserted into the upper cover case 24 and covers the air guide cover 50.

The wind collecting guide passage 231 improves the blowing efficiency. The arrangement of the air guiding cover 50 not only has a certain protection effect on the air outlet 102, but also can guide the air flow to move obliquely downwards so as to prevent the air flow at the air outlet 102 from directly rushing towards the human body when the blowing function is not used.

In one specific embodiment, the upper cover shell 24 is formed with a track groove 241. The barrel mount 60 is formed with a dowel 61. The insertion rib 61 is slidably inserted into the rail groove 241 along the rail groove 241. The number of the track grooves 241 and the number of the ribs 61 are both 2. The two dowels 61 are respectively provided at the left and right ends of the blowpipe mount 60.

In one particular embodiment, the barrel mount 60 is also formed with a locating rib 62. When the blowpipe attachment seat 60 is inserted, the end of the positioning rib 62 extends into the air guide cover 50 beyond the outer wall surface of the air guide cover 50. When the blowpipe mounting seat 60 is mounted, due to the structural arrangement of the positioning convex rib 62, a click sound can be generated in the mounting process, and the mounting in place can be indicated. After the positioning rib 62 is installed in place, the end of the positioning rib 62 is inserted into the air guiding cover 50, so that a certain anti-dropping effect is achieved.

In a particular embodiment, the orientation of the positioning ribs 62 extends perpendicular to the insertion direction of the barrel mount 60. The insertion rib 61 is inserted into the rail groove 241 in the vertical direction.

In one specific embodiment, the bottom of the barrel mount 60 is formed with a detent 63. The middle housing 22 is formed with a stopper projection 221. The position-limiting protrusion 221 is inserted into the positioning groove 63. The number of the positioning grooves 63 and the limit protrusions 221 is 2.

As a specific embodiment, the air inlet 101 is provided at a front side of the tub type cleaner 100 with a blowing function. The air outlet 102 is provided at the rear side of the tub type cleaner 100 with a blowing function. The tub type cleaner 100 with the blowing function further includes: a chassis 71 and a handle bar 72 for gripping by a user. The dust collection tub 10 is mounted to the base frame 71. The bottom of the chassis 71 is provided with a plurality of universal wheels. A handle bar 72 is provided to the rear side of the dust tub 10. The handle bar 72 is mounted to the dust bucket 10. The user may push or pull the handle bar 72 to move the cleaner 100 across the floor surface.

As a preferred embodiment, the vacuum cleaner 100 may be provided with a plurality of fans 30. Accordingly, the cleaner 100 may also be referred to as a multi-fan cleaner. The total cost of the fan can be reduced by arranging a plurality of fans. When the fan is used, partial fans can be started as required to realize power control.

The multi-fan cleaner 100 is provided with an inlet 101 for suction of dust and an outlet 102 for discharge of air. The fan 30 drives the airflow to enter the dust collecting barrel 10 from the air inlet 101, and the airflow is filtered by the dust collecting filter screen 40 and then discharged from the air outlet 102.

The middle case 22 partitions the inside of the tub cover 20 into a first chamber 103 and a second chamber 104. Specifically, the lower cover housing 21 and the middle housing 22 together form a first cavity 103. The middle shell 22 and the wind-collecting cover 23 together form a second chamber 104. The first chamber 103 communicates with the air inlet 101 via the suction screen 40. The second chamber 104 is connected to the air outlet 102. The middle housing 22 is formed with a blower mount 222 for mounting the blower 30.

The bottom of the blower base 222 is formed with a guide groove 2221. The groove bottom of the guide groove 2221 is formed with a communication hole 2222 communicating the first chamber 103 and the second chamber 104.

The multi-fan vacuum cleaner 100 further includes: a closure member 31. The closing member 31 is for covering the communication hole 2222 to close the communication hole 2222. The closing member 31 slides in the height direction in the guide groove 2221. The fan 30 is located above the closure member 31. The lid member 31 includes: a cover plate portion 311 and a plurality of support rib portions 312.

The cover member 31 has an open position to open the communication hole 2222 and a closed position to close the communication hole 2222 with respect to the guide groove 2221. The area of the cover plate portion 311 is larger than the area of the communication hole 2222 and smaller than the cross-sectional area of the guide groove 2221.

When the closing member 31 closes the communication hole 2222, the bottom of the closing plate portion 311 abuts against the groove bottom of the guide groove 2221. In the closed position, since the area of the cover plate portion 311 is larger than the area of the communication hole 2222, the bottom of the cover plate portion 311 closes the communication hole 2222 by abutting against the groove bottom of the guide groove 2221. When in the open position, since the area of the cover plate portion 311 is smaller than the cross-sectional area of the guide groove 2221, the air flow can pass through the gap between the cover plate portion 311 and the guide groove 2221. The support rib 312 is located on the top of the cover plate 311 and protrudes from the outer peripheral surface of the cover plate 311. The support rib portions 312 cooperate with the side walls of the guide slots 2221 to limit the position of the cover plate portion 311 within the guide slots 2221. Specifically, the cover plate portion 311 has a disk shape. The communication hole 2222 is a circular hole.

The closing member 31 slides in the height direction in the guide groove 2221. Specifically, the cover 31 slides in the guide groove 2221 along the axis of the fan 30. The axis of the fan 30 coincides with the axis of the cover 31. The closure member 31 slides between an open position and a closed position. When the cover member 31 is in the open position, the support rib 312 contacts the housing of the blower 30.

Upon activation of the blower 30 above the closure member 31, the closure member 31 moves from the closed position to the open position. Specifically, the fan 30 is activated, the airflow inlet of the fan 30 is aligned with the guide slot 2221, and the fan 30 draws air to float the closure member 31 up from the closed position to the open position. When the blower 30 above the cover member 31 is not activated and the other blowers 30 among the 3 blowers 30 are activated, the negative pressure in the first chamber 103 adsorbs the cover member 31 so that the cover plate portion 311 abuts the bottom of the groove 2221.

The operation model that two fans 30 in the 3 fans 30 start one fan 30 to close is stated and explained, the two started fans 30 can work normally by pumping air to enable the sealing cover part 31 below the two started fans 30 to float upwards to reach the open position, negative pressure is formed in the first cavity 103 when the fans 30 pump air, and the sealing cover part 31 below the fan 30 which is not started at the moment is sucked and kept at the closed position under the negative pressure effect of the first cavity 103.

During the use process, the plurality of fans 30 can be opened arbitrarily, and the cover member 31 does not influence the movement of the airflow. For the unopened blower 30, the lower cover member 31 automatically closes the communication hole 2222, and the use of other blowers is not affected.

The multi-fan vacuum cleaner 100 further includes: and a seal ring 32. The seal ring 32 is disposed within the blower base 222. The seal ring 32 is positioned between the fan mount 222 and the fan 30. The sealing performance between the fan 30 and the guide groove 2221 is improved, and the stability of the installation of the fan 30 is also maintained.

As a specific embodiment, the number of the support ribs 312 is 3. The 3 support rib portions 312 are circumferentially spaced apart by 120 degrees. The 3 support ribs 312 form a triangular support, and when the cover 31 is in the open position, the support ribs 312 contact the housing of the fan 30. The support rib part 312 is recessed downward in the projection range of the airflow inlet of the fan 30, so that the airflow circulation passage area of the airflow inlet of the fan 30 is increased, and the air suction efficiency is improved.

As a preferred embodiment, the vacuum cleaner 100 further has a dust shaking function. The dust shaking function can shake the dust collection screen 40 to clean the dust collection screen 40. Therefore, the cleaner 100 may also be referred to as a bucket cleaner with a dust shaking function.

The dust suction screen 40 partitions the interior of the dust collecting tub 10 into an inner chamber and an outer chamber. The fan 30 drives the air flow to enter the outer cavity from the air inlet 101, and the air flow enters the inner cavity after being filtered by the dust absorption filter screen 40 and is discharged from the air outlet 102.

The number of the fans 30 is 3. The 3 fans 30 are arranged in an isosceles triangle and the length of the bottom side of the isosceles triangle is greater than the length of the waist. As a specific embodiment, the ratio of the length of the waist to the length of the base of the isosceles triangle is greater than 0.7 and less than 1.

The cleaner 100 is provided with an air inlet passage 105 communicating the inner chamber and the outside of the dust collection tub 10. Both ends of the intake passage 105 are defined as a passage inlet 106 and a passage outlet 107, respectively. The vacuum cleaner 100 further includes: and a passage cover 80. The passage cover 80 is adapted to cover the passage inlet 106 to prevent airflow through the air intake passage 105 into the interior cavity.

When the dust shaking function is used, the passage cover 80 may be repeatedly opened and closed to allow airflow from the air inlet passage 105 into the cavity to blow and blow the dust suction screen 40 outwardly from the cavity. The dust collection filter screen 40 is repeatedly bulged from the inner side to the outer side to realize the shaking of the dust collection filter screen 40, so that the dust collection filter screen is cleaned.

The channel outlet 107 is arranged between the two fans 30 at the base angles of the isosceles triangle. The channel inlet 106 and the fans 30 at the top corners of the isosceles triangle are located on both sides of the base of the isosceles triangle. The spatial position of inlet channel 105 and arranging of many fans for inlet channel 105 can set up the gaseous flow that thereby great cross sectional area guaranteed to get into the inner chamber, thereby realizes better dirt effect of trembling.

As a specific embodiment, the isosceles triangle defines a plane of symmetry. The isosceles triangle is symmetrical about the plane of symmetry. The intake passage 105 is symmetrical about a plane of symmetry. Specifically, the channel cover 80 is symmetrical about the plane of symmetry.

As a preferred embodiment, the passage cover 80 includes: rotation shaft 81, cover plate portion 82 covering passage entrance 106, and pressing operation portion 83 for user to press: the rotating shaft 81, the cover plate 82, and the pressing operation portion 83 are integrally molded. The rotation shaft 81 is rotatably mounted to the tub cover 20. The cover plate portion 82 and the pressing operation portion 83 are located on both sides of the rotating shaft 81. The pressing operation portion 83 is located on the side of the cover plate portion 82 away from the fan 30. The rotation axis 81 is parallel to the bottom side of the isosceles triangle. The bucket cleaner 100 further includes a return spring. The return spring is used to urge the passage cover 80 to rotate to return the passage cover 80. The structural arrangement of the passage cover 80 simplifies the number of parts and is convenient for a user to operate.

Specifically, the return spring is a compression spring. The return spring is located between the pressing operation part 83 and the tub cover 20.

In a preferred embodiment, the area of the channel inlet 106 is larger than the area of the channel outlet 107. The intake passage 105 includes a first straight passage section 108, a communication section 109, and a second straight passage section 110. The communicating section 109 connects the first straight channel section 108 and the second straight channel section 110. The end of the first straight channel section 108 forms the channel inlet 106. The end of the second straight channel section 110 forms the channel outlet 107. The cross-sectional area of the communicating section 109 gradually decreases from the first straight passage section 108 to the second straight passage section 110. The first straight channel section 108 and the second straight channel section 110 are vertically arranged. The top of the communicating section 109 comprises a sloping top surface 111 which is inclined to the horizontal. The sloped top surface 111 is located between the two fans 30. Thereby can rationally utilize the space promotion amount of wind between two fans to promote and tremble dirt efficiency.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (10)

1. A multi-blower vacuum cleaner comprising: the dust collecting barrel, the barrel cover, the plurality of fans and the dust collecting filter screen are used for filtering dust; the dust collection filter screen and the fan are mounted to the barrel cover; the barrel cover is detachably mounted to the dust collecting barrel; the multi-fan dust collector is provided with an air inlet for collecting dust and an air outlet for discharging air; the fan drives airflow to enter the dust collection barrel from the air inlet, and the airflow is filtered by the dust collection filter screen and then discharged from the air outlet;

characterized in that, the bung includes: a middle shell; the middle shell divides the inside of the barrel cover into a first cavity and a second cavity; the first cavity is communicated to the air inlet through the dust collection filter screen; the second cavity is communicated to the air outlet; the middle shell is provided with a fan seat for mounting the fan; a guide groove is formed at the bottom of the fan base; a communicating hole for communicating the first cavity and the second cavity is formed at the bottom of the guide groove; the multi-fan vacuum cleaner further comprises: a cover member for covering the communication hole to close the communication hole; the cover part slides in the height direction in the guide groove; the fan is positioned above the sealing cover part; the cover member includes: a cover plate portion and a plurality of support rib portions; the area of the cover plate part is larger than that of the communication hole and smaller than the cross-sectional area of the guide groove; when the cover sealing piece seals the communication hole, the bottom of the cover sealing plate part is attached to the groove bottom of the guide groove; the supporting rib portion is located at the top of the cover sealing plate portion and protrudes out of the peripheral face of the cover sealing plate portion.

2. The multi-fan vacuum cleaner of claim 1,

the multi-fan vacuum cleaner further comprises: a seal ring; the sealing ring is arranged in the fan base; the sealing ring is positioned between the fan base and the fan.

3. The multi-fan vacuum cleaner of claim 1,

the cover member has an open position to open the communication hole and a closed position to close the communication hole with respect to the guide groove; the closure member slides between an open position and the closed position; when the cover member is located at the open position, the support rib portion is in contact with the casing of the blower.

4. The multi-fan vacuum cleaner of claim 3,

the cover member is moved from the closed position to the open position upon activation of the blower above the cover member.

5. The multi-fan vacuum cleaner of claim 4,

when the fans above the sealing cover part are not started, and other fans in the 3 fans are started, the sealing cover part is adsorbed by negative pressure in the first cavity, so that the sealing cover plate part is attached to the bottom of the guide groove.

6. The multi-fan vacuum cleaner of claim 1,

the cover member slides within the guide channel along the axis of the fan.

7. The multi-fan vacuum cleaner of claim 6,

the axis of the fan coincides with the axis of the closure.

8. The multi-fan vacuum cleaner of claim 7,

the supporting rib part is sunken downwards in the projection range of the airflow inlet of the fan.

9. The multi-fan vacuum cleaner of claim 1,

the cover plate part is disc-shaped; the communicating hole is a circular hole.

10. The multi-fan vacuum cleaner of claim 1,

the number of the supporting rib parts is 3; 3 the support rib portion is 120 degrees apart on the circumference all.

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