CN215687438U - Structure of dust collector for preventing air from flowing back - Google Patents
Structure of dust collector for preventing air from flowing back Download PDFInfo
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- CN215687438U CN215687438U CN202121249660.5U CN202121249660U CN215687438U CN 215687438 U CN215687438 U CN 215687438U CN 202121249660 U CN202121249660 U CN 202121249660U CN 215687438 U CN215687438 U CN 215687438U
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- ring part
- fixed ring
- air
- vacuum cleaner
- convex rib
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Abstract
The utility model relates to a structure for preventing air backflow of a dust collector, which comprises: the device comprises a motor, a movable impeller, an upper air duct shell and a lower air duct shell; the upper air duct shell and the lower air duct shell jointly enclose an exhaust duct; the motor drives the movable impeller to rotate; the movable impeller is arranged in the exhaust duct; the movable impeller includes: the fan blade comprises an upper circular plate, a lower arc-shaped plate and a plurality of fan blade ribs; the fan blade ribs are connected with the upper circular plate and the lower arc-shaped plate; an air inlet hole is formed in the middle of the lower arc-shaped plate; a structure of a vacuum cleaner for preventing backflow of air further comprises: windshields and planar bearings; the wind shielding part is fixed to the lower arc-shaped plate; the plane bearing is arranged between the wind shielding piece and the lower air duct shell; the wind shielding member includes: an upper fixed ring part and a horizontal supporting ring part; the upper fixed ring part is connected to the top of the horizontal support ring part; the bottom of the horizontal support ring part is abutted against the plane bearing; the peripheral face of the upper fixed ring part is abutted against the hole wall of the air inlet hole. The utility model has the advantage of effectively preventing air from flowing backwards.
Description
Technical Field
The utility model relates to a structure for preventing air backflow of a dust collector.
Background
A dust collector is a dust removal tool. A bucket cleaner is a kind of cleaner, and generally consists of a head part for suction and a dust collecting bucket of a lower part. The head is internally provided with a motor and a movable impeller. The motor drives the movable impeller to rotate so as to generate suction force to carry out dust collection operation. The movable impeller is positioned in the exhaust duct and rotates relative to the exhaust duct to drive the airflow to be discharged from the dust collection barrel through the exhaust duct.
A larger gap exists between the movable impeller and the inner wall of the exhaust duct, so that a backflow phenomenon is easily generated through the gap, and the working efficiency of the dust collector is influenced.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a structure of a vacuum cleaner for preventing backflow of air, so as to solve the problems of the related art.
In order to achieve the purpose, the utility model provides the following technical scheme:
a structure of a vacuum cleaner for preventing backflow of air, comprising: the device comprises a motor, a movable impeller, an upper air duct shell and a lower air duct shell; the upper air duct shell and the lower air duct shell jointly enclose an exhaust duct; the motor drives the movable impeller to rotate; the movable impeller is arranged in the exhaust duct; the movable impeller includes: the fan blade comprises an upper circular plate, a lower arc-shaped plate and a plurality of fan blade ribs; the fan blade ribs are connected with the upper circular plate and the lower arc-shaped plate; an air inlet hole is formed in the middle of the lower arc-shaped plate;
a structure of a vacuum cleaner for preventing backflow of air further comprises: windshields and planar bearings; the wind shielding part is fixed to the lower arc-shaped plate; the plane bearing is arranged between the wind shielding piece and the lower air duct shell; the wind shielding member includes: an upper fixed ring part and a horizontal supporting ring part; the upper fixed ring part is connected to the top of the horizontal support ring part; the bottom of the horizontal support ring part is abutted against the plane bearing; the peripheral surface of the upper fixed ring part is abutted against the wall of the air inlet hole; the upper fixing ring part is provided with a ring groove which is opened downwards; the lower air duct shell is provided with an inner annular convex rib and an outer annular convex rib; the outer annular convex rib surrounds the inner annular convex rib; the top of the outer annular convex rib extends into the annular groove; the upper fixing ring part surrounds the inner annular convex rib.
As a further scheme of the utility model: the wind shield further includes: a lower ring portion; the horizontal support ring part is connected with the lower ring part and the upper fixed ring part; the lower ring portion extends downward from an outer edge of the horizontal support ring portion.
As a further scheme of the utility model: go up fixed ring portion, horizontal support ring portion and lower ring portion integrated into one piece.
As a further scheme of the utility model: the bottom of the lower ring part is lower than the bottom of the plane bearing.
As a further scheme of the utility model: the top of the inner annular convex rib is higher than the top of the upper fixed ring part.
As a further scheme of the utility model: the windshield is fixed to the lower arc plate in an interference fit manner.
As a further scheme of the utility model: go up fixed ring portion and include: the inner fixed ring part, the outer fixed ring part and the connecting ring part; the connecting ring part is connected with the inner fixed ring part and the outer fixed ring part; the outer fixed ring part extends upwards from the inner edge of the horizontal support ring part; the inner fixed ring part, the outer fixed ring part and the connecting ring part enclose a ring groove together.
As a further scheme of the utility model: the peripheral face of the outer fixed ring part is abutted against the hole wall of the air inlet hole.
As a further scheme of the utility model: the inner fixing ring is positioned between the outer annular convex rib and the inner annular convex rib.
As a further scheme of the utility model: the inner annular convex rib extends into the air inlet hole.
Compared with the prior art, the utility model has the beneficial effects that: effectively preventing air from flowing backwards.
Air backflow is effectively prevented by arranging the wind shielding piece.
Drawings
FIG. 1 is a schematic view of a structure of a vacuum cleaner for preventing backflow of air;
FIG. 2 is a cross-sectional view taken at A-A of a structure of the cleaner of FIG. 1 for preventing backflow of air;
fig. 3 is an enlarged view of a portion of the structure of fig. 2.
The structure 100 for preventing air backflow of the dust collector, a motor 10, a movable impeller 20, a lower arc-shaped plate 21, an upper air duct shell 30, a lower air duct shell 40, an inner annular convex rib 41, an outer annular convex rib 42, an exhaust duct 101, a wind shielding part 50, an upper fixed ring part 51, an inner fixed ring part 511, an outer fixed ring part 512, a connecting ring part 513, a horizontal supporting ring part 52, a lower ring part 53 and a plane bearing 60.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a structure 100 for preventing air backflow of a vacuum cleaner includes: motor 10, impeller 20, upper duct housing 30 and lower duct housing 40. The upper duct housing 30 and the lower duct housing 40 together enclose an exhaust duct 101. The motor 10 drives the impeller 20 to rotate. The movable impeller 20 is disposed in the exhaust duct 101. The moving impeller 20 includes: an upper circular plate, a lower arc-shaped plate 21 and a plurality of fan blade ribs. The upper circular plate is mounted to a motor shaft of the motor 10. The fan blade ribs connect the upper circular plate and the lower arc plate 21. An air inlet hole is formed in the middle of the lower arc-shaped plate 21. When the movable impeller 20 rotates, the driving air flows through the air inlet hole and passes through the space between the upper circular plate and the lower arc-shaped plate 21 to enter the exhaust duct 101.
As a preferred embodiment, a structure 100 of a vacuum cleaner for preventing backflow of air further includes: a wind shield 50 and a flat bearing 60. The wind shielding member 50 is fixed to the lower arc plate 21. The flat bearing 60 is disposed between the wind shield 50 and the lower duct housing 40. The wind shielding member 50 includes: an upper fixed ring portion 51 and a horizontal support ring portion 52. The upper stationary ring portion 51 is connected to the top of the horizontal support ring portion 52. The bottom of the horizontal support ring portion 52 abuts against the flat bearing 60. The outer peripheral surface of the upper fixed ring part 51 is abutted against the wall of the air inlet hole. The upper stationary ring portion 51 is formed with a ring groove opened downward. The lower duct case 40 is formed with an inner annular rib 41 and an outer annular rib 42. The outer annular bead 42 surrounds the inner annular bead 41. The top of the outer annular rib 42 extends into the annular groove. The upper stationary ring portion 51 surrounds the inner annular bead 41. The arrangement of the wind deflector 50 and the flat bearing 60 effectively prevents the generation of a back flow of air between the lower arc-shaped plate and the lower duct housing 40.
As a preferred embodiment, the wind screen 50 further includes: the lower ring portion 53. The horizontal support ring portion 52 connects the lower ring portion 53 and the upper fixed ring portion 51. The lower ring portion 53 extends downward from the outer edge of the horizontal support ring portion 52.
As a preferred embodiment, the upper stationary ring portion 51, the horizontal support ring portion 52 and the lower ring portion 53 are integrally formed.
In a preferred embodiment, the bottom of the lower ring portion 53 is lower than the bottom of the flat bearing 60.
In a preferred embodiment, the top of the inner annular bead 41 is higher than the top of the upper stationary ring 51.
As a preferred embodiment, the wind shielding member 50 is fixed to the lower arc plate 21 by means of interference fit.
As a preferred embodiment, the upper fixed ring portion 51 includes: an inner fixed ring portion 511, an outer fixed ring portion 512, and a connecting ring portion 513. The connecting ring portion 513 connects the inner fixed ring portion 511 and the outer fixed ring portion 512. The outer fixed ring portion 512 extends upwardly from the inner edge of the horizontal support ring portion 52. The inner fixed ring portion 511, the outer fixed ring portion 512 and the connecting ring portion 513 together enclose a ring groove. The outer peripheral surface of the outer fixed ring part 512 is abutted against the hole wall of the air inlet hole.
As a preferred embodiment, the inner fixing ring portion 511 is located between the outer annular bead 42 and the inner annular bead 41. The inner annular rib 41 extends into the air inlet hole.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A structure of a vacuum cleaner for preventing backflow of air, comprising: the device comprises a motor, a movable impeller, an upper air duct shell and a lower air duct shell; the upper air duct shell and the lower air duct shell jointly enclose an exhaust duct; the motor drives the movable impeller to rotate; the movable impeller is arranged in the exhaust duct; the movable impeller includes: the fan blade comprises an upper circular plate, a lower arc-shaped plate and a plurality of fan blade ribs; the fan blade ribs are connected with the upper round plate and the lower arc-shaped plate; an air inlet hole is formed in the middle of the lower arc-shaped plate;
it is characterized in that the structure for preventing the air backflow of the dust collector further comprises: windshields and planar bearings; the wind shielding member is fixed to the lower arc-shaped plate; the plane bearing is arranged between the wind shielding piece and the lower air duct shell; the wind shielding member includes: an upper fixed ring part and a horizontal supporting ring part; the upper fixed ring part is connected to the top of the horizontal support ring part; the bottom of the horizontal support ring part is abutted against the plane bearing; the peripheral surface of the upper fixed ring part is abutted against the wall of the air inlet hole; the upper fixing ring part is provided with a ring groove which is opened downwards; the lower air duct shell is provided with an inner annular convex rib and an outer annular convex rib; the outer annular convex rib surrounds the inner annular convex rib; the top of the outer annular convex rib extends into the annular groove; the upper fixed ring portion surrounds the inner annular convex rib.
2. The structure of a vacuum cleaner for preventing backflow of air according to claim 1,
the wind shielding member further includes: a lower ring portion; the horizontal support ring part is connected with the lower ring part and the upper fixed ring part; the lower ring portion extends downward from an outer edge of the horizontal support ring portion.
3. The structure of a vacuum cleaner for preventing backflow of air according to claim 2,
the upper fixed ring part, the horizontal supporting ring part and the lower ring part are integrally formed.
4. The structure of a vacuum cleaner for preventing backflow of air according to claim 3,
the bottom of the lower ring part is lower than the bottom of the plane bearing.
5. The structure of a vacuum cleaner for preventing backflow of air according to claim 1,
the top of the inner annular convex rib is higher than the top of the upper fixed ring part.
6. The structure of a vacuum cleaner for preventing backflow of air according to claim 1,
the wind shielding member is fixed to the lower arc plate in an interference fit manner.
7. The structure of a vacuum cleaner for preventing backflow of air according to claim 1,
the upper fixed ring portion includes: the inner fixed ring part, the outer fixed ring part and the connecting ring part; the connecting ring part is connected with the inner fixed ring part and the outer fixed ring part; the outer fixed ring portion extends upward from an inner edge of the horizontal support ring portion; the inner fixed ring part, the outer fixed ring part and the connecting ring part enclose the ring groove together.
8. The structure of a vacuum cleaner for preventing backflow of air according to claim 7,
the outer peripheral face of the outer fixed ring portion is abutted to the hole wall of the air inlet hole.
9. The structure of a vacuum cleaner for preventing backflow of air according to claim 7,
the inner fixed ring part is positioned between the outer annular convex rib and the inner annular convex rib.
10. The structure of a vacuum cleaner for preventing backflow of air according to claim 1,
the inner annular convex rib extends into the air inlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121249660.5U CN215687438U (en) | 2021-06-05 | 2021-06-05 | Structure of dust collector for preventing air from flowing back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121249660.5U CN215687438U (en) | 2021-06-05 | 2021-06-05 | Structure of dust collector for preventing air from flowing back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215687438U true CN215687438U (en) | 2022-02-01 |
Family
ID=80041048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121249660.5U Active CN215687438U (en) | 2021-06-05 | 2021-06-05 | Structure of dust collector for preventing air from flowing back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215687438U (en) |
-
2021
- 2021-06-05 CN CN202121249660.5U patent/CN215687438U/en active Active
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