CN211324736U - Dust collector, dust cup device and separating cone thereof - Google Patents

Abstract

The utility model relates to a dust catcher, dirt cup device and separation awl thereof. This separation awl includes: the separation cone body is provided with an inner cavity, an air inlet, an air outlet and a dust collecting port; the air inlet is positioned on the circumferential side wall of the top end of the separation cone body, and the air outlet and the dust collecting port are respectively positioned on the axial top end and the axial bottom end of the separation cone body; the reflecting screen is matched and connected in the inner cavity; a gap is arranged between the reflecting screen and the circumferential side wall of the inner cavity, and a plurality of airflow holes are formed. The dust-laden air flow in the downward air flow, which is close to the circumferential side wall of the inner cavity, moves downward through a gap between the reflecting screen and the circumferential side wall of the inner cavity. Meanwhile, the airflow which is close to the middle part of the inner cavity and does not carry dust in the downward moving airflow is reflected by the reflecting screen to move upwards and then is discharged from the exhaust port, the airflow which continues to move downwards is not influenced, the dust in the downward moving airflow is prevented from being brought out of the exhaust port by the upward moving airflow, the air-dust separation effect is improved, and the influence on the service life of the motor and the environment is reduced.

Description

Dust collector, dust cup device and separating cone thereof

Technical Field

The utility model relates to a dust collecting equipment technical field especially relates to a dust catcher, dirt cup device and separation cone thereof.

Background

With the continuous improvement of living standard of people, the requirements on living sanitation and environmental sanitation are higher and higher. The dust collector gradually becomes an essential life electric appliance in life.

Generally, a vacuum cleaner has a multi-layer dust cup device for filtering and separating air and dust, the air and dust entering the dust cup device are separated by cyclone, the dust is collected in a dust collecting chamber, and the air is exhausted. However, the dust cup device in the prior art cannot separate part of dust with smaller particle size, and can affect the service life of the motor along with the discharge of air flow, and cause pollution to the environment.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a vacuum cleaner, a dust cup device and a separation cone thereof, which are capable of overcoming the above-mentioned drawbacks, in order to solve the problems that the prior art dust cup device cannot separate part of dust with small particle size, and the dust cup device may be discharged with the air flow, thereby affecting the service life of the motor and causing environmental pollution.

A separation cone, comprising:

the separation cone body is provided with an inner cavity, and an air inlet, an air outlet and a dust collecting port which are communicated with the inner cavity; the air inlet is positioned on the circumferential side wall of the top end of the separation cone body, and the air outlet and the dust collecting opening are respectively positioned on the axial top end and the axial bottom end of the separation cone body; and

the reflecting screen is matched and connected in the inner cavity and divides the inner cavity into a top cavity and a bottom cavity; a gap is formed between the reflecting screen and the circumferential side wall of the inner cavity, and a plurality of airflow holes communicated with the top cavity and the bottom cavity are formed in the reflecting screen.

In one embodiment, the reflecting screen is conical, and the vertex of the reflecting screen faces the top end of the separation cone body.

In one embodiment, the reflective screen is conical.

In one embodiment, the separation cone body comprises at least one diffuser section between the reflecting screen and the air inlet, and each diffuser section has an inner diameter gradually increasing in a direction from the top end of the separation cone body to the bottom end thereof.

In one embodiment, the separation cone body further comprises at least one necked-down section between the reflection screen and the dust collection port, and each of the necked-down sections has an inner diameter gradually decreasing in a direction from a top end of the separation cone body toward a bottom end thereof.

In one embodiment, the separation cone body further comprises a buffer section located between the reflective screen and the necked-down section, the buffer section having a constant inner diameter.

In one embodiment, a plurality of the airflow holes are symmetrically distributed with respect to a central axis of the reflective screen.

In one embodiment, at least two connecting portions are convexly arranged on the circumferential edge of the reflecting screen, and one end, far away from the reflecting screen, of each connecting portion is fixedly connected to the circumferential side wall of the inner cavity.

In one embodiment, the air inlet tangentially penetrates a circumferential sidewall of the conical cavity.

A dirt cup apparatus comprising a dirt cup and a separation cone as described in any one of the embodiments above;

an air inlet hole communicated with the interior of the dust cup is formed in the circumferential side wall of the dust cup, and the separation cone is arranged in the dust cup.

In one embodiment, the dust cup further comprises a filter screen which is arranged in the dust cup, and the separation cone is arranged in the filter screen;

a dust collecting cavity is defined between the outer wall of the filter screen cover and the inner wall of the dust cup.

A vacuum cleaner comprising a dirt cup apparatus as described in any of the embodiments above.

Above-mentioned separation awl, dirt cup device and dust catcher, because the reflecting screen sets up, the dirt air current of taking of the circumference lateral wall that is close to the inner chamber in the air current of downward motion in the separation awl body inner chamber, continue downstream through the clearance between the circumference lateral wall of reflecting screen and inner chamber, and be close to the not dirt air current that takes in the middle part of the inner chamber in the air current of downstream and upward motion through the reflecting screen reflection, and then discharge from the gas vent, do not influence the air current of continuing downstream, the dirt in the air current of having avoided the downward motion is taken out the dust exhaust mouth by the air current of upward motion, the gas-dust separation effect has been improved, the influence to motor life-span and environment has been reduced.

Drawings

Fig. 1 is a schematic structural view of a dust cup device according to an embodiment of the present invention;

FIG. 2 is an exploded view of the dirt cup assembly shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the dirt cup assembly shown in FIG. 1;

FIG. 4 is a schematic cross-sectional view of the separation cone of the dirt cup apparatus shown in FIG. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an embodiment of the present invention provides a vacuum cleaner, which includes a main body (not shown) and a dust cup device 100. The dust cup device 100 is connected with the main body, the main body comprises a shell, a motor and an impeller, the motor and the impeller are contained in the shell, the impeller is connected with a driving shaft of the motor, and the dust cup device 100 is connected with the shell. In the dust collection process, the driving shaft of the motor rotates to drive the impeller to rotate to generate negative pressure, external dust-carrying gas is sucked into the dust cup device 100 under the action of the negative pressure, the dust-carrying gas entering the dust cup device 100 forms rotating airflow under the action of cyclone generated by the motor, and gas-dust separation is realized under the action of centrifugal force.

Referring to fig. 1, 2 and 3, the dirt cup device 100 includes a dirt cup 10, a filter screen 20 and a separating cone 30. An air inlet 12 is arranged on the circumferential side wall of the dust cup 10. The filter screen 20 is disposed in the dust cup 10. The separation cone 30 is disposed in the filter screen 20. The outer wall of the filter screen 20 and the inner wall of the dust cup 10 define a dust collecting chamber a. Under the negative pressure effect generated by the rotation of the impeller driven by the motor, the dust-carrying airflow enters the dust collection cavity a through the air inlet 12, and forms a rotating airflow rotating around the filter screen cover 20 under the cyclone effect generated by the motor, the dust with larger mass collides with the inner wall of the dust cup 10 under the action of centrifugal force and falls, and the rest dust and dirt enters the separation cone 30 through the filter screen cover 20 along with the airflow, and is separated again in the separation cone 30. That is, the filter screen 20 performs a first stage of dust-air separation on the dust-laden air flow entering the dust cup 10. The separation cone 30 performs a second stage of dust-gas separation on the dusty gas stream.

Specifically, the air inlet 12 penetrates through the circumferential side wall of the dust cup 10 in a tangential direction, so that the air inlet 12 has an effect of changing the direction of the dust-laden air flow, and when the dust-laden air flow enters the dust collection cavity a through the air inlet 12, the direction of the dust-laden air flow is changed to the tangential direction along the dust cup 10, which is beneficial to forming a rotating air flow.

Further, the dirt cup assembly 100 also includes a filter element 40. The dirt cup 10 has an opening 14 at the top end. The top end of the filter screen cover 20 is provided with an opening 24. The filter screen 20 is assembled in the dust cup 10 through the opening 14 of the dust cup 10, and the circumferential edge of the top end of the filter screen 20 is in sealing fit with the inner wall of the dust cup 10 to form the dust collection cavity a. The separation cone 30 is mounted in the filter screen 20 through the opening 24 at the top end of the filter screen 20. The filter member 40 is sealingly disposed at the opening 14 at the top end of the dirt cup 10 to filter fine dirt remaining in the airflow discharged from the top end of the separation cone 30. That is, filter element 40 provides a third stage of gas-dust separation of the gas stream. Alternatively, the filter element 40 may be filter cotton. The filter member 40 is not limited to the filter cotton, and other materials that can meet the filtering requirement may be used, and is not limited herein.

Further, the bottom end of the separation cone 30 penetrates through the bottom end of the filter screen 20 and is communicated with the outside of the dust cup 10, so as to collect dust discharged from the bottom end of the separation cone 30.

Referring to fig. 3 and 4, the separation cone 30 includes a separation cone body 32 and a reflecting screen 34, wherein the separation cone body 32 has an inner cavity b, and an air inlet 322, an air outlet 324 and a dust collecting port 326 which are communicated with the inner cavity b. The gas inlet 322 is located in the circumferential sidewall of the tip 321 of the separation cone body 32. The exhaust port 324 and the dust collecting port 326 are respectively located at the top end 321 and the bottom end 323 of the separation cone body 32 in the axial direction. The reflective screen 34 is coupled within the inner cavity b and divides the inner cavity b into a top chamber c and a bottom chamber d. A gap h is formed between the reflecting screen 34 and the circumferential side wall of the inner cavity b, and a plurality of airflow holes communicated with the top cavity c and the bottom cavity d are formed.

The separation cone 30 is provided with the reflecting screen 34, and dust-carrying air flow enters the inner cavity b of the separation cone body 32 through the air inlet 322 and rotates around the axial direction of the separation cone body 32 to form rotating air flow moving downwards. The dirt and dust gradually gathers downwards under the action of centrifugal force and gravity. After the downward-moving airflow meets the reflecting screen 34, a part of the airflow is reflected to form an upward-moving airflow, and then the upward-moving airflow is discharged from the air outlet 324 at the top end of the separation cone body 32; another part of the airflow and the dirt pass through the gap h between the reflecting screen 34 and the circumferential side wall of the inner cavity b and go downward, and under the action of centrifugal force, the dirt collides with the circumferential side wall of the inner cavity b and falls down to enter the dust collection opening 326 to be collected, and the airflow passes through the airflow holes on the reflecting screen 34 and goes upward to be discharged through the exhaust opening 324.

So, the dirty air current of carrying that is close to the circumference lateral wall of inner chamber b in the interior downward air current of separation awl body 32, continue downstream through the clearance h between the circumference lateral wall of reflection shield 34 and inner chamber b, and the not dust-carrying air current that is close to the inner chamber b middle part in the air current of downstream passes through reflection shield 34 reflection and upward movement, and then discharge from gas vent 324, do not influence the air current of continuing downstream, avoided the dirt in the air current of downstream to be carried out gas vent 324 by the air current of upward movement, the gas-dust separation effect has been improved, the influence to motor life-span and environment has been reduced.

Specifically, the air inlet 322 penetrates through the circumferential side wall of the inner cavity b in the tangential direction, so that the air inlet 322 has the function of changing the direction of the dust-carrying airflow, and when the dust-carrying airflow enters the inner cavity b through the air inlet 322, the direction of the dust-carrying airflow is changed into the tangential direction along the circumferential side wall of the inner cavity b, and the formation of the rotating airflow is facilitated.

In the embodiment of the present invention, the reflective screen 34 is conical, and the vertex of the cone of the reflective screen 34 faces the top 321 of the separation cone body 32. Preferably, the reflective screen 34 is conical. So, be favorable to realizing the reflection of air current to play the effect of leading dirt, further make dirt to the circumference lateral wall gathering of inner chamber b, improve the gas-dust separation effect.

The embodiment of the utility model provides an in, the central axis symmetric distribution of the relative reflecting screen 34 of a plurality of air current holes on the reflecting screen 34 for the air current in inner chamber b is comparatively even in inner chamber b's circumferential direction.

The embodiment of the utility model provides an in, the protruding at least two connecting portion 342 that are equipped with in circumference edge of reflecting screen 34, the one end fixed connection that reflecting screen 34 was kept away from to every connecting portion 342 in the circumference lateral wall of inner chamber b to with reflecting screen 34 fixed connection in the circumference lateral wall of inner chamber b. At least two connecting portions 342 are arranged at intervals around the circumference of the reflecting screen 34, and a passage for the downward moving dust-laden air flow to continue to move downwards through the reflecting screen 34 (i.e. the gap h between the reflecting screen 34 and the circumferential side wall of the inner cavity b) is defined between two adjacent connecting portions 342.

It is understood that the connecting portion 342 may be integrally formed with the reflective screen 34. The connecting portion 342 and the circumferential sidewall of the inner cavity b can be fixed by, for example, welding, clamping, fastening with a threaded fastener, integrally molding, etc., and is not limited herein.

In an embodiment of the present invention, the separation cone body 32 includes at least one segment of diffuser 32a located between the reflective screen 34 and the air inlet 322, and the inner diameter of each diffuser 32a gradually increases in the direction from the top end 321 of the separation cone body 32 to the bottom end 323 thereof. So, diffuser section 32 a's setting makes the rotatory air current that can form the downstream rapidly by the dust-carrying air current that air inlet 322 got into inner chamber b, under gravity and centrifugal force's dual function, the dust and dirt is drawn close and downstream to inner chamber b's circumference lateral wall, thereby guarantee that the dust-carrying air current that is close to inner chamber b's circumference lateral wall gets into bottom cavity d by the clearance h between reflection screen 34 and the circumference lateral wall of inner chamber b, the dust-free air current that is close to inner chamber b middle part simultaneously passes through reflection screen 34 reflection and upward movement, and discharge from gas vent 324, the effect of gas dust separation has further been strengthened. In the embodiment shown in FIG. 4, the separation cone body 32 includes only one segment of the diverging section 32 a. The diffuser section 32a is the area of the separation cone body 32 between where the air inlet 322 is located and where the reflective screen 34 is located.

In a specific embodiment, the separation cone body 32 further includes at least one necked-down section 32b between the reflection screen 34 and the dust collection port 326, and each necked-down section 32b has an inner diameter gradually decreasing in a direction from the top end 321 of the separation cone body 32 toward the bottom end 323 thereof. In this way, since the inner diameter of the necking section 32b is gradually reduced, when the dust-laden airflow entering the bottom chamber d from the gap h between the reflection screen 34 and the circumferential side wall of the inner cavity b enters the necking section 32b, the dust collides with the circumferential side wall of the inner cavity b and falls along the circumferential side wall of the inner cavity b, and is collected from the dust collection port 326; at the same time, the air flow moves upward through the plurality of air flow holes of the reflection screen 34, and is discharged through the air outlet 324.

Further, the separation cone body 32 further includes a buffer section 32c between the reflection screen 34 and the necking section 32b, and the inner diameter of the buffer section 32c is constant. So, get into the smooth transition of the dust air flow that takes of buffer segment 32c by the clearance h between the circumference lateral wall of reflecting screen 34 and inner chamber b, avoid the air current disorder, be favorable to improving the gas-dust separation effect.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (12)

1. A separation cone, comprising:

the separation cone body (32) is provided with an inner cavity (b), and an air inlet (322), an air outlet (324) and a dust collecting port (326) which are communicated with the inner cavity (b); the air inlet (322) is positioned on the circumferential side wall of the top end of the separation cone body (32), and the air outlet (324) and the dust collecting opening (326) are respectively positioned on the top end and the bottom end of the separation cone body (32) in the axial direction; and

a reflective screen (34) coupled within the interior cavity (b) and dividing the interior cavity (b) into a top chamber (c) and a bottom chamber (d); a gap (h) is formed between the reflecting screen (34) and the circumferential side wall of the inner cavity (b), and a plurality of airflow holes communicated with the top cavity (c) and the bottom cavity (d) are formed.

2. The separation cone of claim 1, wherein the reflective screen (34) is conical in shape with the apex of the reflective screen (34) facing the apex of the separation cone body (32).

3. A separation cone according to claim 2, characterized in that the reflecting screen (34) is conical.

4. The separation cone according to claim 1, wherein the separation cone body (32) comprises at least one diffuser section (32a) between the reflective screen (34) and the air inlet (322), each diffuser section (32a) having an inner diameter that gradually increases in a direction from a top end of the separation cone body (32) to a bottom end thereof.

5. The separation cone according to claim 4, wherein the separation cone body (32) further comprises at least one necked-down section (32b) between the reflective screen (34) and the dust collection port (326), each of the necked-down sections (32b) having an inner diameter gradually decreasing in a direction from a top end of the separation cone body (32) toward a bottom end thereof.

6. The separation cone of claim 5, wherein the separation cone body (32) further comprises a buffer section (32c) between the reflective screen (34) and the necked-down section (32b), the buffer section (32c) having a constant inner diameter.

7. The skimmer cone of claim 1, wherein said plurality of air flow apertures are symmetrically distributed about a central axis of said reflective screen (34).

8. The separation cone according to claim 1, characterized in that the circumferential edge of the reflective screen (34) is provided with at least two connecting portions (342) in a protruding manner, each connecting portion (342) being fixedly connected to a circumferential side wall of the inner cavity (b).

9. The separation cone according to claim 1, characterized in that the air inlet (322) tangentially penetrates a circumferential side wall of the inner cavity (b).

10. A dirt cup arrangement, characterized by comprising a dirt cup (10) and a separation cone (30) according to any one of claims 1 to 9;

an air inlet hole (12) is formed in the circumferential side wall of the dust cup (10), and the separation cone (30) is arranged in the dust cup (10).

11. The dirt cup device of claim 10, further comprising a filter screen (20) disposed within the dirt cup (10), the separation cone (30) being disposed within the filter screen (20);

a dust collecting cavity (a) is defined between the outer wall of the filter screen cover (20) and the inner wall of the dust cup (10).

12. A vacuum cleaner, characterized in that it comprises a dirt cup device (100) according to claim 10 or 11.

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