CN217645112U - Dust and gas separation device - Google Patents

Abstract

The utility model discloses a dust and gas separation device, which comprises a shell with a cyclone separation chamber inside, and an air inlet and an air outlet fluidly communicated with the cyclone separation chamber. A filter is also connected to the air outlet in the cyclone separation chamber. The filter includes a filter housing whose sidewall is provided with a number of filter holes; the filter housing is in fluid communication with the air outlet, and the air flow passes through the filter housing and then is discharged from the air outlet; For the tip, when the filter housing is placed in a vertical posture with the tip on top, the outer contour of the filter housing is generally parabolic in vertical section. The dust and gas separation device of the utility model can perform good dust and gas separation in an environment with many threads such as hair, pet hair and the like.

Description

Dust and gas separation device

technical field

The utility model relates to the field of cleaning equipment, in particular to a dust and gas separation device.

Background technique

With the development of science and technology, people's cleaning of the daily environment is no longer restricted to the traditional cleaning methods such as brooms, rags, mops and other cleaning tools. It brings a new cleaning experience, and the cleaning ability of the living environment is also greatly improved.

These cleaning equipment are generally equipped with a fan and a dust and gas separation device. The suction force is generated by the fan to suck the dirt on the surface to be cleaned into the dust and gas separation device; the dust and gas separation device can separate the dirt from the airflow and store it. , the air flow that separates out the dirt is finally discharged into the outside air again, so as to achieve a cleaning effect.

However, the internal structure of the dust separation device of the existing cleaning equipment generally separates the dirt from the airflow by means of cyclone separation and filtration separation; When the cleaning environment is dirty, the existing cleaning equipment, the dust and gas separation device cannot separate the wire-like objects well, so that the dust and gas separation device is prone to blockage, so it needs to be improved.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a dust and gas separation device, which is convenient to be used in a clean environment with linear objects such as hair strands, pet hair and silk threads, has a good separation effect and is not prone to clogging.

The utility model is realized through the following technical solutions:

A dust and gas separation device comprises a shell with a cyclone separation chamber inside, and an air inlet and an air outlet in fluid communication with the cyclone separation chamber, wherein a filter is also connected to the air outlet in the cyclone separation chamber, and the filter The filter includes a filter housing with a number of filter holes arranged on the side wall; the filter housing is in fluid communication with the air outlet, and the air flow passes through the filter housing and is discharged from the air outlet;

The filter housing is generally conical in shape and its end away from the air outlet is a tip. When the filter housing is placed in a vertical posture with the tip on top, the outer contour of the filter housing is generally in the vertical section. Parabolic.

Further, filter cotton is also provided inside the filter housing.

Further, the filter cotton is attached to the inner wall of the filter housing.

Further, the filter housing includes a filter portion and a flow guide portion, the flow guide portion is disposed at one end of the filter housing close to the tip, and the filter holes are distributed on the filter portion.

Further, the height of the top of the filter cotton is not lower than the height of the top of the filter part.

Further, the shell is further provided with an ash throwing port at one end of the cyclone separation chamber away from the air outlet, and the height of the top of the filter portion is lower than the height of the lowest end of the ash throwing port.

Further, the height of the tip is lower than the height of the lowest end of the ash throwing port.

Further, in the vertical direction, the vertical distance from the highest end to the lowest end of the filter portion is h1, the vertical length of the cyclone separation chamber is h2, and h1/h2≥0.4.

Further, if the maximum outer diameter of the filter housing is d1, the inner diameter of the cyclone separation chamber is d2, and d1/d2≥0.4.

Further, the housing is also provided with a mounting seat for installing the filter, and the mounting seat is provided with a mounting port in fluid communication with the air outlet; the filter also includes a mounting seat connected to the filter housing The installation part is detachably arranged in the installation opening; the filter cotton is attached to the installation part and/or the inner wall of the installation opening.

Compared with the prior art, the advantages of the present utility model are:

1. The filter housing is generally arranged in a cone shape, and in the vertical direction, its cross-sectional profile is generally parabolic; this setting can generate a good cyclone airflow in the cyclone separation chamber, and is convenient for linear objects such as hair to surround And from the filter housing, it has a good separation effect and is not easy to be blocked.

2. By arranging filter cotton inside the filter housing, and attaching the filter cotton to the inner wall of the filter housing, it can further filter and improve the dust and gas separation efficiency.

3. By setting the filter part and the diversion part, the dirt of the wire can be easily separated from the filter cover, which not only has a good separation effect, but also makes the filter cover less likely to be blocked.

4. By setting the height of the top of the filter cotton not lower than the height of the top of the filter part, the top of the filter cotton is located above the filter hole, so as to prevent the dirt from being deposited on the top of the filter cotton when the dirt flows into the filter housing with the airflow.

5. By setting the height of the tip or the top of the filter part lower than the height of the lowest end of the ash throwing port, the suction force of the fan on the ash throwing port can be reduced, so that the dirt can be thrown into the ash throwing port to achieve separation from the airflow.

6. By setting the mounting seat and the mounting portion, the filter cover can be detachably mounted on the housing, so as to facilitate disassembly and assembly to replace and clean the filter cover and filter cotton.

7. By setting the filter cotton to fit with the installation part and/or the inner wall of the installation opening, it can play a better role in filtering.

Description of drawings

1 is a schematic diagram of the overall structure of a cleaning device according to an embodiment of the present invention;

2 is a schematic diagram of the overall structure of a dust-gas separation device according to an embodiment of the present invention;

Fig. 3 is the disassembled schematic diagram of the overall structure of the dust and gas separation device according to an embodiment of the present invention;

Fig. 4 is the disassembled schematic diagram of the bottom case and the filter installation structure according to an embodiment of the present utility model;

5 is a schematic diagram of the overall structure of a filter according to an embodiment of the present invention;

6 is a schematic cross-sectional view of the overall structure of a filter according to an embodiment of the present invention;

7 is a schematic cross-sectional view 1 of the overall structure of the dust and gas separation device according to an embodiment of the present invention;

8 is a second schematic cross-sectional view of the overall structure of the dust and gas separation device according to an embodiment of the present invention.

Detailed ways

The technical solution of the utility model is further described in non-limiting detail below in conjunction with the preferred embodiments and the accompanying drawings. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be construed as a limitation of the present invention.

As shown in FIGS. 1-3 , a cleaning device according to an embodiment of the present invention includes a cleaning head 9 in contact with the surface to be cleaned, a main body 91 with a fan, and a dust and gas separator for separating dirt device 1. The dust and gas separation device 1 includes a casing, the casing includes a bottom casing 11 and a side casing 12 connected to the bottom casing 11 , and the bottom casing 11 and the side casing 12 are enclosed to form a casing with an inner space. The casing is also provided with a baffle wall 2 in the inner space, and the baffle wall 2 divides the inner space into two parallel parts, one of which is provided with a cyclone separation chamber 4 and the other part is provided with a storage chamber 3 . The housing is also provided with an air inlet 7 and an air outlet 8 in fluid communication with the cyclone separation chamber 4 , and a filter 5 in fluid communication with the air outlet 8 is arranged in the cyclone separation chamber 4 . One end of the baffle wall 2 away from the air outlet is provided with an ash throwing port 21, and the air flow enters the cyclone separation chamber 4 from the air inlet 7, and after the cyclone separation, the dirt enters the storage chamber 3 from the ash throwing port 21 for storage, The airflow passes through the filter 5 and is discharged from the air outlet to the outside of the dust-gas separation device 1 .

As shown in FIGS. 2-4 , and also referring to FIGS. 7 and 8 , in this embodiment, in the inner space of the baffle wall 2 close to the side of the cyclone separation chamber 4 , the bottom shell 11 is on the bottom of the cyclone separation chamber 4 . A mounting seat 53 for mounting the filter 5 is also provided. The bottom shell 11 is also provided with a cyclone runway 54 spirally rising around the mounting base 53 . The airflow enters from the air inlet 7 and then flows along the cyclone track 54 to form a cyclone, and the formed cyclone enters the cyclone separation chamber 4 for cyclone separation of the airflow and dirt. It can be understood that in the inner space of the baffle wall 2 close to the side of the cyclone separation chamber 4, a cyclone generation chamber (not numbered in the figure) is provided on the bottom shell 11 at the bottom of the cyclone separation chamber 4, and the cyclone generation chamber is formed by the mounting seat 53. It is composed of a cyclone runway 54 spirally rising around the mounting base 53 . A cyclone is formed in the cyclone generation chamber, and then flows into the cyclone separation chamber 4 .

As shown in FIGS. 4 to 6 , the filter 5 includes a filter housing 51 with a number of filter holes on the side wall and a mounting portion 52 connected to the bottom end of the filter housing 51. The filter housing 51 can be integrally formed with the mounting portion 52. . The mounting seat 53 is provided with a mounting port 531 which is in fluid communication with the air outlet 8 , and the filter 5 is detachably mounted in the mounting port 531 through the mounting portion 52 . In this embodiment, a soft rubber ring 521 is provided on the outer wall of the mounting portion 52, and the mounting portion 52 is inserted into the mounting opening 531. By setting the soft rubber ring 521, the sealing effect can not only be achieved, but also the mounting portion 52 can be caused by interference. It is installed into the installation opening 531 in a matched manner, and this installation method is detachable. When the filter 5 needs to be replaced or cleaned, the user can unplug the filter 5 from the mounting seat 53 . Of course, in actual production, the connection manner of the mounting portion 52 and the mounting seat 53 is not unique, and the mounting can also be performed by means of screw connection, snap connection, or the like. The filter housing 51 is generally arranged in a cone shape, and its tip 513 is arranged away from the air outlet 8 . When the filter housing 51 is placed in a vertical posture with the tip 513 on top, on any vertical section passing through the filter housing 51 , the outer contour of the filter housing 51 is generally parabolic. Of course, those skilled in the art can also understand the shape of the filter housing 51 as, on the vertical section from the tip 513 to the bottom of the filter housing 51, the outer contour line of the filter housing 51 on the vertical section is the baseline A (refer to FIG. 6 ), the base line A is generally parabolic, and the base line A is used as a generatrix, and the shape of the filter housing 51 is formed by rotating the base line A around its own symmetry axis a by 360°. After the cyclone enters the cyclone separation chamber 4, the cyclone can continue to flow around the filter housing 51, thereby enhancing the cyclone effect; especially when there are threads such as hair, pet hair and threads in the clean environment, the threads can surround the filter The outer wall of the casing 51 flows, thereby generating centrifugal force and flowing toward the outer periphery of the cyclone separation chamber 4, thereby facilitating separation from the airflow. The filter housing 51 is set to the above-mentioned shape, and along the airflow direction (the direction from the air inlet 7 to the ash throwing port 21 ), filaments such as hair strands are easily separated from the filter housing 51 to prevent them from entangling into the filter housing 51 Therefore, the separation efficiency is improved, and the filter housing 51 is less likely to be blocked. In addition, by setting the filter housing 51 in the above-mentioned shape, the size of the filter housing 51 is gradually reduced, the cyclone effect can be enhanced as much as possible, and the separation efficiency can be further improved. 8, in order to enhance the cyclone effect, it is preferable to set the maximum outer diameter of the filter housing 51 to be d1, and the inner diameter of the cyclone separation chamber 4 to be d2, and d1/d2≥0.4.

Continuing to refer to FIGS. 4-6 , in order to further improve the separation efficiency, in this embodiment, the filter housing 51 is provided with a filter part 511 and a flow guide part 512 . The guide portion 512 is located at one end of the filter housing 51 close to the tip 513 , and the filter holes on the side wall of the filter housing 51 are distributed on the filter portion 511 . In this way, the end of the filter housing 51 close to the tip can be less affected by the suction of the fan, thereby making it easier for threads such as threads to escape from the filter housing 51 . Further, it is preferable to set the height of the tip 513 (that is, the height of the top of the filter housing 51 ) not higher than the height of the lowest end of the ash throwing port 21 (as shown in FIG. 8 ), so that the filter hole can be located below the ash throwing port 21 , thereby reducing the suction force at the ash throwing port 21 , thereby facilitating the flow of dirt into the ash throwing port 21 . In the embodiment not shown in the figure, the height of the tip is higher than the height of the lowest end of the ash throwing port 21, but the height of the top end of the filter part 511 is lower than the height of the lowest end of the ash throwing port 21; in this way, the filter hole can still be located in the ash throwing port. Below the port 21, the separation efficiency can also be improved. It is preferably arranged in the vertical direction, the distance from the lowest end to the highest end of the filter part 511 is h1, the total length of the cyclone separation chamber 4 is h2, and h1/h2≥0.4. In this way, a sufficient suction force can be maintained in the cyclone separation chamber 4 to improve the cyclone separation effect, and at the same time, it is also convenient for contaminants such as hair strands to be separated from the filter housing 51 .

As shown in FIG. 6 , in this embodiment, the filter housing 51 is further provided with a filter cotton 6 , and the filter cotton 6 is located in the filter housing 51 and extends to the mounting portion 52 . It is preferable to set the filter cotton 6 to be in contact with the inner wall of the filter housing 51 and the inner wall of the mounting portion 52, so that the filtering effect can be improved, and dirt can be prevented from passing through the gap between the filter cotton 6 and the filter 5; of course, in the figure In the embodiment not shown, the filter cotton 6 may continue to extend and protrude from the installation portion 52, and then fit with the inner wall of the installation opening 531. The longer the straight distance, the better the filtering effect. The airflow enters the filter housing 51 through the filter holes, then passes through the filter cotton 6 for finer filtering, and is finally discharged from the air outlet. Preferably, the height of the top of the filter cotton 6 is not lower than the height of the top of the filter part 511, so that the top of the filter cotton 6 is above the filter hole, which can prevent dirt from accumulating in the space between the top of the filter cotton 6 and the tip 513 (Fig. 7). and filter cotton 6) is not shown in the cross-sectional view of FIG. 8 .

The implementation principle of this embodiment is that the airflow enters the cyclone generation chamber from the air inlet 7 and flows along the cyclone runway 54 to generate a cyclone. Then it enters into the cyclone separation chamber 4 , continues to rotate around the filter housing 51 and flows toward the ash throwing port 21 . Part of the dirt is separated by the cyclone and enters the storage chamber 3 through the ash throwing port 21 for storage. The air flow from which part of the dirt is separated passes through the filter 5 , and is further separated from dirt under the further filtration of the filter housing 51 and the filter cotton 6 , and finally the air flow is discharged from the air outlet 8 . The dust and gas separation device 1 also has a good separation effect in an environment with dirty linear objects such as hair strands and pet hair, and is less prone to clogging. The dirty wire can rotate around the filter housing 51 , thereby generating centrifugal force to move away from the outer periphery of the filter housing 51 , so as to be easily separated from the airflow and not easily entangled on the filter housing 51 .

In addition, in order to facilitate cleaning, a dust cup cover 13 (refer to FIG. 3 ) can also be hingedly provided on the end of the side shell 12 of the dust and gas separation device 1 away from the bottom shell 11 . The user can open the dust cup cover 13 and then Dirt such as dust is poured out from the cyclone chamber 4 and the storage chamber 3 . The user can also pull out the filter 5 from the mounting seat 53 for cleaning or replacement. In addition, in order to more conveniently clean the dirt on the bottom of the dust-gas separation device 1 , the bottom case 11 and the side case 12 can also be installed in a detachable manner. I won't go into too much detail here.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the present invention. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (10)

1. A dust-gas separation device comprises a shell with a cyclone separation chamber inside, and an air inlet and an air outlet which are communicated with the cyclone separation chamber in a fluid manner, and is characterized in that a filter is also connected to the air outlet in the cyclone separation chamber, and the filter comprises a filter housing with a plurality of filter holes on the side wall; the filtering cover is communicated with the air outlet in a fluid mode, and the air flow passes through the filtering cover and then is discharged from the air outlet;

the filtering cover is generally conical, one end of the filtering cover, which is far away from the air outlet, is a tip, and when the filtering cover is placed in a vertical posture with the tip at the upper part, the outer contour of the filtering cover is generally parabolic in vertical section.

2. The dust and gas separating apparatus of claim 1, wherein the filter housing is further provided with filter cotton therein.

3. The dirt-gas separation system of claim 2 wherein the filter cotton is attached to the inner wall of the filter housing.

4. The dust and gas separating apparatus of claim 2, wherein the filter housing includes a filter portion and a flow guide portion, the flow guide portion is disposed at an end of the filter housing near the tip, and the filter holes are distributed on the filter portion.

5. The dust and gas separating apparatus of claim 4, wherein the filter cotton has a top height not lower than the top height of the filter section.

6. The dust-gas separating apparatus of claim 4 or 5, wherein the housing further comprises an ash slinger at an end of the cyclone chamber away from the air outlet, and the top end of the filter part is lower than the lowest end of the ash slinger.

7. The dust and gas separating apparatus of claim 6, wherein the height of the tip is lower than the height of the lowermost end of the dust slinger.

8. The dust-gas separating apparatus according to claim 4, wherein in the vertical direction, the vertical distance from the highest end to the lowest end of the filter unit is h1, the vertical length of the cyclone chamber is h2, and h1/h2 is not less than 0.4.

9. The dust and gas separating apparatus of claim 1, wherein the cyclone chamber has an inner diameter d2, and d1/d2 is not less than 0.4, where d1 is the largest outer diameter of the filter housing and d1 is the largest outer diameter of the filter housing.

10. The dust-gas separating device of claim 2, wherein the housing is further provided with a mounting seat for mounting the filter, and a mounting port in fluid communication with the air outlet is arranged in the mounting seat in a penetrating manner; the filter also comprises a mounting part connected to the filter housing, and the mounting part is detachably arranged in the mounting opening; the filter cotton is attached to the mounting portion and/or the inner wall of the mounting portion.

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