CN218304706U

CN218304706U - Desktop dust collector

Info

Publication number: CN218304706U
Application number: CN202222461197.1U
Authority: CN
Inventors: 郑高伟; 陈建旺; 叶仁龙
Original assignee: Ningbo Tiantian Stationery Co ltd
Current assignee: Ningbo Tiantian Stationery Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-01-17
Anticipated expiration: 2032-09-16

Abstract

The utility model discloses a desktop dust catcher, include: an upper housing; a fan rotatable about a rotation axis with respect to the upper housing; a hair blocking structure is formed between the fan and the upper shell, the rotating shaft is arranged in the hair blocking structure, and the hair blocking structure is used for limiting long and thin garbage outside the ring from entering the position of the rotating shaft. The utility model provides a desktop dust catcher, it directly sets up the hair between last casing and fan and blocks the structure, avoids long and thin rubbish to enter into rotation axis position winding motor shaft, prevents long and thin rubbish winding motor shaft.

Description

Desktop dust collector

Technical Field

The utility model relates to a desktop dust catcher technical field, more specifically says, relates to a desktop dust catcher.

Background

Conventional vacuum cleaners are intended for use on the floor and have a roller brush which rotates about a horizontally arranged axis of rotation, which roller brush during travel cleans up the dust on the floor and is sucked into a dust bag or a dust bin by means of a negative pressure line. Unlike traditional suction cleaners, tabletop suction cleaners are used to act on a tabletop by generating negative pressure through a fan rotating around a vertically disposed rotating shaft, which is a motor shaft, to generate suction from bottom to top. The lower shell of the desktop dust collector is provided with a brush structure for brushing garbage on the desktop, and a filter cover with a filter screen is arranged inside the dust collector and used for intercepting dust or debris wrapped in air flow into the desktop dust collector to achieve the purpose of dust collection.

Traditional desktop dust catcher often meets when using and inhales long and thin rubbish, such as hair, end of a thread etc. these long and thin rubbish can get into fan leaf bottom winding motor shaft very easily, cause the operating current to increase, increase the energy consumption, serious cause the motor to block up, cause complete machine function to become invalid.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a desktop dust catcher, it directly sets up the hair between last casing and fan and blocks the structure, avoids long thin rubbish to enter into rotation axis position winding motor shaft, prevents that long thin rubbish from twining the motor shaft.

The utility model adopts the technical proposal that: provided is a tabletop cleaner including: an upper housing; a fan rotatable about a rotation axis with respect to the upper housing; the hair blocking structure is formed between the fan and the upper shell, the rotating shaft is arranged in the hair blocking structure, and the hair blocking structure is used for limiting long and thin garbage outside the ring to enter the rotating shaft.

Compared with the prior art, the technical scheme has the advantages that: the utility model discloses in directly block the structure with hair and form between last casing and fan, need not the spare part that independent installation set up and block the structure, simplified hair and blockked the structure. The hair blocking structure can dynamically seal the gap between the upper shell and the fan when the fan rotates relative to the upper shell, and avoids that long and thin garbage wrapped by airflow enters the position of the rotating shaft through the gap to wind the motor shaft in the process of forming airflow by rotating the fan.

According to an embodiment of the present invention, the hair blocking structure comprises a sealing edge and an annular groove, the sealing edge is formed on one of the upper housing and the fan, the annular groove is formed on the other of the upper housing and the fan, and the sealing edge is rotatably engaged with the annular groove; the sealing edge is rotatably matched with the annular groove, so that the hair blocking structure has the function of dynamically sealing the gap between the upper shell and the fan when the fan rotates relative to the upper shell.

According to the utility model discloses an embodiment, the quotation of fan bladed disk is towards closing on go up the casing direction and extend and form the sealing edge, the ring channel sets up on the last casing.

According to the utility model discloses an embodiment, the outer fringe of fan bladed disk is towards closing on the last casing direction extends and forms the sealing strip, the ring channel sets up on the last casing.

According to the utility model discloses an embodiment, go up the casing towards closing on the fan direction extends and forms the sealing edge, the ring channel sets up on the fan blade dish.

According to an embodiment of the present invention, one of the upper housing and the fan extends toward the other to form a first annular protrusion and a second annular protrusion, and the first annular protrusion and the second annular protrusion are spaced apart from each other to form the annular groove; the second annular bulge prevents the edge of the sealing edge from being exposed, and can prolong the length of the path of long and thin garbage entering the sealing edge through the sealing gap between the annular groove and the sealing edge, so that the sealing property is improved.

According to an embodiment of the present invention, when the sealing rim is formed at the outer edge of the fan blade disc, the extension height of the second annular protrusion located at the outer side of the sealing rim is greater than the extension height of the first annular protrusion located at the inner side of the sealing rim.

According to the utility model discloses an embodiment, one in upper housing and the fan is towards keeping away from the other direction sunken formation ring channel.

According to the utility model discloses an embodiment, the outer fringe of fan bladed disk is towards keeping away from go up the sunken formation of casing direction the ring channel, the sealing strip sets up on the last casing.

According to the utility model discloses an embodiment, the sealed limit is continuous or discontinuous ring structure or is the even brush column structure that sets up of annular.

Drawings

FIG. 1 is an exploded view of a tabletop dust collector in an embodiment of the present invention;

FIG. 2 is a side view of a portion of a tabletop vacuum cleaner in an embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a partial enlarged view of FIG. 3 at B;

fig. 5 is a schematic structural diagram of a fan according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a fan according to an embodiment of the present invention;

FIG. 7 is an exploded view of a portion of a tabletop vacuum cleaner in another embodiment of the present invention;

fig. 8 is a bottom view of a fan according to another embodiment of the present invention;

FIG. 9 is a partial cross-sectional view of a tabletop cleaner according to another embodiment of the present invention;

FIG. 10 is an enlarged view of a portion of FIG. 9 at C;

FIG. 11 is a cross-sectional view of a tabletop vacuum cleaner in another embodiment of the invention;

FIG. 12 is an enlarged view of a portion of FIG. 11 at D;

fig. 13 is a perspective view of a tabletop cleaner in an embodiment of the present invention.

The reference numbers in the figures illustrate:

1. an upper housing; 2. a fan; 3. a filter housing; 4. a lower housing; 5. a drive unit; 6. a rotating shaft;

11. an annular groove; 12. a first annular projection; 13. a second annular embossment;

21. a leaf disc; 22. a blade; 23. and (7) sealing the edges.

Detailed Description

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

Referring to fig. 1-3 and 13, there is provided a table top vacuum cleaner comprising: an upper case 1; a fan 2 rotatable about a rotation axis 6 with respect to the upper case 1; a hair blocking structure is formed between the fan 2 and the upper casing 1, the rotating shaft 6 is arranged in the hair blocking structure, and the hair blocking structure is used for limiting long and thin garbage outside the ring from entering the position of the rotating shaft 6.

In this embodiment, the desktop vacuum cleaner further includes a filter housing 3, a lower housing 4 and a driving unit 5, the lower housing 4 is detachably connected to one side of the upper housing 1, and the filter housing 3 and the fan 2 are both located in a space formed by covering the upper housing 1 and the lower housing 4 and detachably connected to the upper housing 1. The driving unit 5 is installed inside the upper case 1, and a driving end of the driving unit 5, which is rotatable about an axis, penetrates and protrudes out of the upper case 1 to be connected with the fan 2. In this embodiment, the driving unit 5 is a motor, and a motor shaft drives the fan 2 to rotate synchronously, so as to generate bottom-to-top airflow in the space formed by the covering of the upper casing 1 and the lower casing 4. The garbage on the desktop is entrained by the airflow and flows in through the inlet at the center of the lower shell 4, and is intercepted by the filter hood 3 into the space formed by the upper shell 1 and the lower shell 4.

Further, as shown in fig. 5 and 6, in the present embodiment, the blade structure of the vacuum cleaner fan 2 includes a blade disc 21 and blades 22, and one side of the blade disc 21 extends in the axial direction to form the blade 22 structure. The rotating shaft 6 of the fan 2 is the center axis of the impeller 21.

Specifically, as shown in fig. 3 and 4, the hair blocking structure in this embodiment includes a sealing edge 23 and an annular groove 11, one of the upper housing 1 and the fan 2 is formed with the sealing edge 23, the other of the upper housing 1 and the fan 2 is formed with the annular groove 11, and the sealing edge 23 is rotatably engaged with the annular groove 11.

More specifically, the outer edge of the blade disc 21 of the fan 2 extends towards the direction adjacent to the upper shell 1 to form the sealing edge 23, and the annular groove 11 is arranged on the upper shell 1.

Specifically, as shown in fig. 9 and 10, one of the upper casing 1 and the fan 2 extends toward the other to form a first annular protrusion 12 and a second annular protrusion 13, and the first annular protrusion 12 and the second annular protrusion 13 are distributed at an interval to form the annular groove 11.

Specifically, when the sealing rim 23 is formed on the outer edge of the vane disk 21 of the fan 2, the extension height of the second annular projection 13 located outside the sealing rim 23 is greater than the extension height of the first annular projection 12 located inside the sealing rim 23.

Further, the first annular projection 12 is located inside the sealing rim 23, i.e. the first annular projection 12 is located in the gap between the blisk 21 and the upper shell 1. The second annular bulge 13 is located outside the sealing edge 23, and the inner side wall of the second annular bulge 13 is spaced from the side wall of the sealing edge 23, so as to avoid interference between the sealing edge 23 and the second annular bulge 13 when the blisk 21 rotates relative to the upper shell 1.

Further, the sealing edge 23 is formed by injection molding and integral molding of the fan 2 in the present embodiment. The sealing edge 23 may be regarded as a flanging structure of the edge of the blisk 21.

In particular, referring to fig. 7-8, in another embodiment, the disk surface of the bladed disk 21 of the fan 2 extends towards the direction adjacent to the upper casing 1 to form the sealing edge 23, and the annular groove 11 is provided on the upper casing 1.

Further, in another embodiment, the disk surface of the blade disk 21 of the fan 2 specifically refers to the area between the outer edge and the center of the blade disk 21. In another embodiment, the sealing edge 23 is concentrically disposed with the outer edge of the blisk 21.

Specifically, as shown in fig. 11 and 12, in another embodiment, one of the upper housing 1 and the fan 2 is recessed away from the other to form the annular groove 11.

Specifically, in another embodiment, the upper casing 1 extends to form the sealing edge 23 in the direction adjacent to the fan 2, and the annular groove 11 is disposed on the blade disc 21 of the fan 2.

Specifically, in another embodiment, the outer edge of the blade disc 21 of the fan 2 is recessed away from the upper casing 1 to form the annular groove 11, and the sealing edge 23 is disposed on the upper casing 1.

In particular, in another embodiment, the sealing edge 23 is in a continuous or discontinuous ring structure or in a brush structure uniformly arranged in a ring shape.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A tabletop vacuum cleaner, comprising:

an upper housing;

a fan rotatable about a rotation axis with respect to the upper housing;

the hair blocking structure is formed between the fan and the upper shell, the rotating shaft is arranged in the hair blocking structure, and the hair blocking structure is used for limiting long and thin garbage outside the ring to enter the rotating shaft.

2. A tabletop cleaner as claimed in claim 1, wherein: the hair blocking structure comprises a sealing edge and an annular groove, the sealing edge is formed on one of the upper shell and the fan, the annular groove is formed on the other one of the upper shell and the fan, and the sealing edge is rotatably matched with the annular groove.

3. A tabletop cleaner as claimed in claim 2, wherein: the disc surface of the fan blade disc extends towards the direction close to the upper shell to form the sealing edge, and the annular groove is formed in the upper shell.

4. A tabletop cleaner as claimed in claim 2, wherein: the outer edge of the fan blade disc extends towards the direction close to the upper shell to form the sealing edge, and the annular groove is formed in the upper shell.

5. A tabletop cleaner as claimed in claim 2, wherein: the upper shell extends towards the direction close to the fan to form the sealing edge, and the annular groove is formed in the fan blade disc.

6. A tabletop cleaner as claimed in any of claims 3 to 5, wherein: one of the upper shell and the fan extends towards the direction close to the other to form a first annular bulge and a second annular bulge, and the first annular bulge and the second annular bulge are distributed at intervals to form the annular groove.

7. A tabletop cleaner as claimed in claim 6, wherein: when the sealing edge is formed on the outer edge of the fan blade disc, the extension height of the second annular bulge positioned on the outer side of the sealing edge is larger than that of the first annular bulge positioned on the inner side of the sealing edge.

8. A tabletop cleaner as claimed in any of claims 3 to 5, wherein: one of the upper shell and the fan is recessed towards the direction far away from the other to form the annular groove.

9. A tabletop cleaner as claimed in claim 2, wherein: the outer edge of the fan blade disc is recessed towards the direction far away from the upper shell to form the annular groove, and the sealing edge is arranged on the upper shell.

10. A tabletop cleaner as claimed in claim 2, wherein: the sealing edge is in a continuous or discontinuous annular structure or in a brush-shaped structure which is uniformly arranged in an annular shape.