CN218552216U - Dust-gas separating device - Google Patents

Abstract

The utility model discloses a dust-gas separation device, which comprises a casing, in which a cyclone chamber for cyclone separation and a dust collection chamber for collecting dirt are arranged; the cyclone chamber has an air outlet, and the air outlet is provided with a A rotating shaft and a filtering structure that can rotate around the rotating shaft. The filtering structure includes a grille cover for filtering the airflow discharged from the air outlet. The filtering structure includes a mounting part with a through hole, and the rotating shaft is passed through the through hole; the rotating shaft and The through hole is slidably connected in the axial direction of the rotating shaft, so that the filtering structure can be moved out from the end of the rotating shaft, and a first positioning piece is detachably arranged on the rotating shaft, and the first positioning piece is used to prevent the filtering structure from moving along the axial direction of the rotating shaft. move. The dust-gas separation device of the utility model is not easy to be blocked, and the filter structure is convenient to be disassembled for cleaning or replacement.

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

Vacuum cleaner equipment has a long history of development. With technological iterations and changes in people's functional requirements, the core technology of vacuum cleaner equipment has developed into a relatively mature and solidified form.

In order to enrich the functions of the vacuum cleaner or improve the adaptability of the vacuum cleaner to different environments, the current vacuum cleaner equipment on the market has gradually derived a variety of different structures and functions; some of the existing vacuum cleaners have a dust cup type dust and gas separation device, It is used to separate the dirt from the airflow for sustainable use. The separation efficiency of the dust-air separation device greatly affects the cleaning effect of the vacuum cleaner equipment and the user experience. At present, the above-mentioned dust-air separation devices generally use cyclone separation and filter elements The combination of these two forms of filtration is used for dust and gas separation.

However, it is difficult to achieve a good separation effect only by using this method, especially after long-term use, hair strands, pet hair, etc. may be entangled on the filter element, which is not easy to clean and cause inconvenience to users; in addition, a large amount of dust entering the filter element is also It will cause clogging of the filter element, which will affect the use of the vacuum cleaner, so it needs to be improved.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a dust and gas separation device, the filter structure inside of which is not easy to be blocked, and is easy to disassemble, so that it is convenient to clean up dirt such as hair strands.

The utility model is realized through the following technical solutions:

A dust and gas separation device, comprising a housing, the housing is provided with a cyclone chamber for cyclone separation, and a dust collection chamber for collecting dirt; the cyclone chamber has an air outlet, and the air outlet is provided with There is a rotating shaft and a filtering structure that can rotate around the rotating shaft, and the filtering structure includes a grille cover for filtering the airflow discharged from the air outlet;

The filtering structure includes a mounting part having a through hole, and the rotating shaft is passed through the through hole;

The rotating shaft is slidably connected to the through hole in the axial direction of the rotating shaft, so that the filtering structure can be moved out from the end of the rotating shaft;

A first positioning member is also detachably arranged on the rotating shaft, and the first positioning member is used to prevent the filtering structure from moving axially along the rotating shaft.

Further, the filter structure includes a fan structure fixedly connected to the grille cover, and the fan structure is configured to be driven to rotate by the airflow.

Further, the installation part is arranged on the fan structure, and the fan structure further includes an outer wall, and blades connecting the outer wall and the installation part.

Further, the grill cover is formed with an inner space, and the fan structure and the rotating shaft are arranged in the inner space.

Further, the grill cover is detachably connected to the outer wall of the fan structure.

Further, at least one bearing is arranged in the through hole, and the bearing includes a bearing inner ring and a bearing outer ring; the fan structure is fixedly connected to the bearing outer ring, and the rotating shaft is passed through the bearing inner ring.

Further, the rotating shaft is provided with a second positioning piece, the bearing is located between the first positioning piece and the second positioning piece, and the first positioning piece and the second positioning piece are in contact with the inner ring of the bearing.

Further, the rotating shaft is provided with a threaded segment, and the rotating shaft is threadedly connected with the first positioning member.

Further, at least one bearing is arranged in the through hole, and the bearing is fixedly arranged in the through hole; the bearing includes a bearing inner ring, and an installation pipe is interference-connected to the inner ring of the bearing, and the installation pipe and Shaft sliding connection.

Compared with the prior art, the utility model has the advantages of:

1. By installing a rotatable filter structure at the air outlet instead of the filter element to filter the exhausted airflow, a good filtering effect can be achieved, and the dust-gas separation device is not easy to be blocked.

2. The filtering structure is positioned by setting a detachable first positioning member on the rotating shaft, and at the same time, the filtering structure can be slid along the axial direction of the rotating shaft, so that the filtering structure can be disassembled for cleaning or replacement.

3. By setting the fan structure fixedly connected with the grille cover, and setting the fan structure to be rotated by the air flow, the grille cover can be rotated during filtering, making it difficult for dirt to pass through the grille cover, thereby reducing blockage and causing to a good filtering effect.

4. By setting the detachable connection between the grille cover and the fan structure, it is convenient to clean the grille cover and the fan structure during cleaning.

5. By setting the installation part on the fan structure and setting the fan structure inside the grille cover, the fan structure and the rotating shaft are effectively protected, and the dirt such as hair strands is effectively reduced from being entangled on the rotating shaft and the fan structure, resulting in "filtering structure" stuck" risk.

6. By arranging the first positioning piece and the second positioning piece to abut against the inner ring of the bearing, the fan structure is fixedly connected to the outer ring of the bearing, so that the fan structure can rotate around the rotating shaft and can be rotated after the first positioning piece is removed. The effect of sliding along the axis of rotation.

7. By arranging the bearing and the installation pipe, the filtering structure can be rotated and slid along the rotating shaft.

Description of drawings

Fig. 1 is the overall structure schematic diagram of an embodiment of the utility model;

Fig. 2 is a schematic cross-sectional view of the overall structure of an embodiment of the utility model;

Fig. 3 is the enlarged schematic diagram 1 of the structure of part A in Fig. 2;

Fig. 4 is the enlarged schematic diagram II of the structure of part A in Fig. 2;

Fig. 5 is a schematic cross-sectional view of a filtering structure of another embodiment;

Fig. 6 is a schematic diagram of the connection structure between the air outlet and the rotating shaft;

Fig. 7 is the overall structure schematic diagram of filtering structure;

Fig. 8 is a disassembled schematic view of the filter structure.

Detailed ways

The following is a further non-limiting detailed description of the technical solution of the utility model in combination with preferred embodiments and accompanying drawings. In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientations or positional relationships indicated by , "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the drawings. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

As shown in Figures 1 and 2, a dust-gas separation device according to an embodiment of the present invention includes a housing 1 in which a cyclone chamber 2 for cyclone separation and a dust collector for storing dirt are arranged. Room 3. There is an air inlet 21 in the cyclone chamber 2, and a cyclone runway 22 connected to the air inlet 21. The airflow is sucked into the cyclone chamber 2 from the air inlet 21, and then flows along the cyclone runway 22 to generate a swirling airflow in the cyclone chamber 2. The dust collection chamber 3 is arranged outside the cyclone chamber 2, and is in fluid communication with the cyclone chamber 2 through the dust removal port 31; the dirt is thrown into the dust collection chamber 3 through the dust removal port 31 under the drive of the rotating air flow, so that At least part of the dirt is separated from the air flow.

As shown in FIGS. 2-4 , in this embodiment, the cyclone chamber 2 and the dust collection chamber 3 are arranged side by side in the housing 1 , and the two are separated by a barrier wall of the housing 1 . An air outlet 23 is also arranged in the cyclone chamber 2, and the air outlet 23 and the air inlet 21 are located at two ends of the cyclone chamber 2 respectively, and the ash removal port 31 is arranged at an end of the retaining wall near the air outlet 23. The end of the casing 1 close to the air outlet 23 is the docking part 4 with the air inlet of the fan on the vacuum cleaner (not shown in the figure). In order to improve the separation efficiency of dust and gas, a rotating shaft 9 and a filter structure 5 that can rotate around the rotating shaft 9 are also provided at the air outlet 23 in the cyclone chamber 2 . The filter structure 5 includes a grid cover 51 with several grid holes. When filtering, the filter structure 5 rotates at the air outlet 23, so that the dirt is not easy to pass through the rotated grid holes and can only be retained in the cyclone chamber 2. The dust is thrown into the dust collection chamber 3, while the airflow easily passes through the rotating grill cover 51, thereby further improving the separation efficiency of dust and gas.

Continue to refer to FIGS. 2-4 , and refer to FIG. 6 at the same time. In this embodiment, an installation frame 10 is provided at the air outlet 23 . Extend to the air outlet 23 and connect with each other in the air outlet 23 . The support rods 11 are fixedly arranged at the joints of several support rods 11 in the air outlet 23 and extend into the cyclone chamber 2 . The filtering structure 5 also includes a fan structure 52 fixedly connected to the grille cover 51 , and the fan structure 52 is configured to be driven by the airflow to rotate, thereby driving the grille cover 51 to rotate. Certainly, in other embodiments, a driving motor may also be provided to drive the grill cover 51 to rotate. In this embodiment, the grille cover 51 is formed with an inner space, and the fan structure 52 and the rotating shaft 9 are located in the inner space of the grille cover 51, which can play a protective role, so that dirt such as hair strands is not easy to wind up on the fan structure 52 and the fan structure 52. on the rotating shaft 9, so as to prevent the filter structure 5 from being stuck and stop rotating, which will affect the filtering effect.

Referring to FIG. 3 , FIG. 4 , FIG. 7 and FIG. 8 , specifically, the fan structure 52 includes an annular outer wall 520 and an inner wall 521 , and the outer wall 520 and the inner wall 521 are connected by several blades 522 . In this embodiment, the grill cover 51 is fixedly connected to the outer wall 520 of the fan structure 52 , and the fan structure 52 is rotatably connected to the rotating shaft 9 . Specifically, the annular inner wall 521 of the fan structure 52 is set as a mounting portion connected to the rotating shaft 9, and a through hole 6 is formed in the inner wall 521, and the through hole 6 is also a shaft hole for installing the rotating shaft 9, and the rotating shaft 9 passes through set in the shaft hole. In an embodiment not shown in the figure, a bearing 61 is provided in the through hole 6, and the bearing 61 includes a bearing inner ring and a bearing outer ring; wherein the bearing outer ring is fixedly connected to the inner wall 521, and the bearing inner ring is fixedly connected to the rotating shaft 9 , so that the fan structure 52 and the whole filter structure 5 can be connected on the rotating shaft 9 and can rotate around the rotating shaft 9 .

As shown in Figure 3 and Figure 4, in this embodiment, a bearing 61 is arranged in the through hole 6, and the bearing 61 includes a bearing inner ring and a bearing outer ring, wherein the bearing outer ring is fixedly connected to the inner wall 521, and the bearing inner ring is connected to the rotating shaft 9 is slidably connected along the axis of the rotating shaft 9 . Specifically, the rotating shaft 9 is provided with a first positioning member 7 and a second positioning member 71, the bearing 61 is located between the first positioning member 7 and the second positioning member 71, and the first positioning member 7 and the second positioning member 71 are respectively contact with the inner ring of the bearing 61 . In this way, the inner ring of the bearing 61 can be fixedly connected with the rotating shaft 9 , so that the filtering structure 5 can be installed on the rotating shaft 9 and can rotate around the rotating shaft 9 . The diameter of the inner ring of the bearing 61 is set to be greater than or just equal to the outer diameter of the rotating shaft 9, so that the bearing 61 can slide on the rotating shaft 9; 7 is detachably connected to the rotating shaft 9, so that during installation, the bearing 61 can be sleeved on the rotating shaft 9 from one end of the rotating shaft 9, and slide toward the second positioning member 71, so that the second positioning member 71 and the bearing 61 the inner ring abuts; at this time, the first positioning member 7 is connected to the rotating shaft 9 and the inner ring of the bearing 61 at the other end is abutted against the first positioning member 7 to complete the installation.

After long-term use, when the rotating shaft 9 and the fan structure 52 are entangled with hair and other dirt or when a fault occurs, the user can remove the first positioning member 7 from the rotating shaft 9, and then close the filter structure 5 from the rotating shaft 9. One end of the first positioning member 7 slides out to achieve the effect of disassembling the filter structure 5 , thereby facilitating cleaning or replacement of the filter structure 5 . It is worth noting that the inner ring of the bearing 61 can slide along the rotating shaft 9. In addition to the above two ways of setting the inner ring diameter of the bearing 61 to be greater than or just equal to the outer diameter of the rotating shaft 9, it is also possible to set the inner ring of the bearing 61 to have a diameter slightly smaller than At this time, the inner ring of the bearing 61 is in an interference fit with the rotating shaft 9, but it still has the ability for the user to slide the bearing 61 from the rotating shaft 9. At this time, the inner ring of the bearing 61 should also be regarded as being in contact with the rotating shaft. 9 is the mode of slidable connection. In this embodiment, the end of the rotating shaft 9 away from the air outlet 23 is provided with a threaded segment 91, and the first positioning member 7 is provided as a nut-type structure with internal threads. Of course, other detachable connection methods can also be used to achieve the first positioning. Part 7 and the connection of rotating shaft 9.

As shown in Figure 5, in another embodiment, a bearing 61 is arranged in the through hole 6, and the bearing 61 is fixedly arranged in the through hole 6. The bearing 61 includes a bearing inner ring, and the installation pipe 12 is connected to the inner ring of the bearing with interference. , the mounting tube 12 and the rotating shaft 9 may be keyed so that the mounting tube 12 can slide along the axial direction of the rotating shaft 9 . In this embodiment, the first positioning member 7 and the rotating shaft 9 can be configured as the above structure, and the first positioning member 7 abuts against the installation tube 12 to prevent it from sliding along the rotating shaft 9 .

In order to facilitate the disassembly and assembly of the filter structure 5 and to facilitate its cleaning, the grille cover 51 and the outer wall 520 of the fan structure 52 can be detachably connected. Specifically, the grille cover 51 and the fan structure 52 can be arranged as shown in FIG. 8 The outer wall 520 of the outer wall 520 is connected by thread, and can also be connected by buckle or the like.

As shown in Fig. 3, Fig. 4 and Fig. 6, the position of the rotating shaft 9 close to the air outlet 23 is the first end 13, preferably the filter structure 5 is connected to the first end 13 of the rotating shaft 9, that is, the fan in this embodiment The structure 52 is connected at the first end 13 . In this way, the connection between the filtering structure 5 and the rotating shaft 9 is closer to the casing 1 (installation frame 10 ), that is, the root of the filtering structure 5 and the rotating shaft 9 is closer. Since the rotating shaft 9 is mostly formed integrally with the housing 1 by plastic parts during actual production, or is connected with the housing 1 by injection molding using a metal material. Therefore, the stability of the connection between it and the housing 1 is poor, and it is prone to loosening or deformation after long-term use, so that the filtering structure 5 vibrates or even gets stuck when rotating, affecting the filtering effect and user experience. Therefore, the filter structure 5 is arranged and connected to the position of the rotating shaft 9 close to the air outlet 23, so that when the filter structure 5 rotates, the swing range of the rotating shaft 9 is small, so that the rotating shaft 9 is more firmly connected to the housing, thereby improving the filter structure 5. rotation stability.

In addition, since the fan structure 52 is connected to the first end 13 of the rotating shaft 9, and the grill cover 51 is fixedly connected to the outer wall 520 of the fan structure 52, so that the top of the entire filter structure 5 is closer to the air outlet 23, in actual production , the top of the filter structure 5 (that is, the top of the grille cover 51 and the top of the fan structure 52) can be set to fit in a gap with the housing 1 around the air outlet 23, so as to keep a small distance from the housing 1, so that it is not easy to get dirty Through the gap between the filtering structure 5 and the housing 1, thereby improving the filtering effect. With the above structure, since the filter structure 5 has better stability when rotating, even if the top of the filter structure 5 is matched with the housing 1 with a very small gap, it is not easy to be stuck. In order to further improve the stability of the filtering structure 5 , preferably at least one bearing 61 is provided in the through hole 6 to connect with the rotating shaft 9 .

The implementation principle of this embodiment is: after the airflow passes through the cyclone runway 22, a swirling airflow is generated in the cyclone chamber 2, and then part of the dirt is thrown into the dust collection chamber 3 from the ash throwing port 31, thereby being separated from the airflow. When the airflow flows out from the air outlet 23, the airflow will drive the fan structure 52 to rotate, thereby driving the grill cover 51 to rotate. This makes it difficult for the dirt in the subsequent airflow to pass through the grille cover 51 , so that it cannot be discharged from the air outlet 23 . Part of the dirt blocked by the grid cover 51 in the cyclone chamber 2 is finally thrown into the dust collection chamber 3 again by the cyclone, thereby further improving the separation efficiency.

Some dirt or strands of hair, pet hair, etc. may pass through the grille cover 51 and enter its inner space, thereby adhering or being entangled on the fan structure 52 or the rotating shaft 9 . After long-term use, too much dirt such as hair strands on the fan structure 52 and the rotating shaft 9 will cause blockage or directly cause the fan structure 52 and the rotating shaft 9 to be stuck, causing the filter structure 5 to not rotate, which will seriously affect the filtering effect. At this time, the user can remove the grille cover 51 from the fan structure 52, then remove the first positioning member 7 from the rotating shaft 9, and finally pull out the fan structure 52 from the rotating shaft 9, and then the grille can be aligned. Cover 51 and fan structure 52 are cleaned or replaced. During installation, the fan structure 52 is sleeved on the rotating shaft 9 first, then positioned with the first positioning member 7 , and finally the grille cover 51 is fixed on the fan structure 52 .

In addition, in order to improve the filtering effect, it is preferably arranged in a direction perpendicular to the axis of the cyclone chamber 2. The projection of the filtering structure 5 towards the direction of the ash removal port 31 at least partially overlaps with the area where the ash removal port 31 is located, so that the dirt can quickly enter the In the dust collection room 3. Filter media such as filter cotton 41 or Hypa can also be provided at the butt joint 4 , that is, downstream of the air outlet 23 on the airflow path, to further fully filter the dirt passing through the filter structure 5 . Due to the cyclone separation and the filtration of the filter structure 5, the filter cotton 41 and other media are not easy to be blocked, so that compared with the traditional technology, the cleaning efficiency is high and the user experience is good.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (9)

1. A dust-gas separation device, comprising a housing, wherein the housing is provided with a cyclone chamber for cyclone separation, and a dust collection chamber for collecting dirt; the cyclone chamber has an air outlet, and is characterized in that, The air outlet is provided with a rotating shaft and a filtering structure that can rotate around the rotating shaft, and the filtering structure includes a grille cover for filtering the airflow discharged from the air outlet; The filtering structure includes a mounting part having a through hole, and the rotating shaft is passed through the through hole; The rotating shaft is slidably connected to the through hole in the axial direction of the rotating shaft, so that the filtering structure can be moved out from the end of the rotating shaft; A first positioning member is also detachably arranged on the rotating shaft, and the first positioning member is used to prevent the filtering structure from moving axially along the rotating shaft. 2 . The dust and gas separation device according to claim 1 , wherein the filtering structure comprises a fan structure fixedly connected to the grill cover, and the fan structure is configured to be driven by airflow to rotate. 3 . 3 . The dust and gas separation device according to claim 2 , wherein the installation part is arranged on a fan structure, and the fan structure further comprises an outer wall and blades connecting the outer wall and the installation part. 4 . 4 . The dust and gas separation device according to claim 3 , wherein the grille cover is formed with an inner space, and the fan structure and the rotating shaft are arranged in the inner space. 5 . 5. The dust and gas separation device according to claim 3, characterized in that, the grille cover is detachably connected to the outer wall of the fan structure. 6. The dust and gas separation device according to any one of claims 2-5, wherein at least one bearing is arranged in the through hole, and the bearing includes a bearing inner ring and a bearing outer ring; the fan structure It is fixedly connected with the outer ring of the bearing, and the rotating shaft is passed through the inner ring of the bearing. 7. The dust and gas separation device according to claim 6, wherein a second positioning member is provided on the rotating shaft, the bearing is located between the first positioning member and the second positioning member, and the first positioning member and the second locating piece abuts against the inner ring of the bearing. 8 . The dust and gas separation device according to claim 7 , wherein a threaded section is provided on the rotating shaft, and the rotating shaft is threadedly connected with the first positioning member. 9. The dust and gas separation device according to any one of claims 1-5, characterized in that at least one bearing is arranged in the through hole, and the bearing is fixedly arranged in the through hole; ring, the inner ring of the bearing is interference-connected with a mounting tube, and the mounting tube is slidably connected with the rotating shaft.

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