CN218165135U - Dust-gas separating device - Google Patents

Abstract

The utility model discloses a dust-air separating device, which comprises a shell, wherein a cyclone chamber for cyclone separation and a dust collecting chamber for collecting dirt are arranged in the shell; the dust collecting chamber is arranged outside the cyclone chamber and communicated with the cyclone chamber through an ash throwing port; the cyclone chamber is provided with an air inlet and an air outlet, and the air outlet is provided with a rotatable filtering structure for filtering the airflow discharged from the cyclone chamber; the air outlet is provided with a rotating shaft, the filtering structure is provided with an inner space, the rotating shaft extends into the inner space, the rotating shaft is provided with a first end close to the air outlet, and the filtering structure is rotatably connected with the first end. The utility model discloses a difficult emergence of dirt gas separation device blocks up, and stability is better to better dirt gas separation efficiency has.

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, smart cleaning equipment has gradually entered people's daily life, replacing traditional cleaning tools and bringing people new cleaning methods and cleaning experience.

Among them, the most common one is vacuum cleaner equipment with dust removal as the main purpose. At present, vacuum cleaner equipment on the market has gradually developed a variety of styles, mainly including vertical vacuum cleaners, hand-held vacuum cleaners, stick vacuum cleaners, and horizontal vacuum cleaners. Among these vacuum cleaner equipment Generally, there is a dust-gas separation device, which is used to separate the airflow and dust sucked into it. Dust and other dirt are finally collected into the dust-gas separation device, while the relatively clean airflow is discharged from the vacuum cleaner, so as to achieve dust removal. Effect.

The current dust and gas separation devices generally rely on cyclone separation to separate part of the dirt, and further filter through filter media such as filter cotton or Hypa, so as to achieve the purpose of separating the dirt from the airflow; however, only through these two methods The cooperation of the filter cannot achieve a good separation effect, and after a long time of use, the filter media such as filter cotton is easily blocked, which affects the dust and gas separation efficiency and user experience.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a dust and gas separation device, which is provided with a rotatable filter structure at the air outlet of the cyclone chamber, which can filter the dirt well and has high stability.

The utility model is realized through the following technical solutions:

A device for separating dust and gas, comprising a housing in which a cyclone chamber for cyclone separation and a dust collection chamber for collecting dirt are arranged; The mouth is connected with the cyclone chamber; the cyclone chamber has an air inlet and an air outlet, and the air outlet is provided with a rotatable filter structure for filtering the airflow discharged from the cyclone chamber;

The air outlet is provided with a rotating shaft, the filtering structure has an inner space, and the rotating shaft extends into the inner space;

The rotating shaft has a first end close to the air outlet, and the filtering structure is rotatably connected with the first end.

Further, the end of the filtering structure close to the air outlet is in clearance fit with the housing around the air outlet.

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

Further, the inner space is formed in the grill cover, the fan structure is disposed in the inner space, and the fan structure is rotatably connected to the first end.

Further, the fan structure includes a shaft hole and several blades, and the several blades extend from the side wall of the shaft hole to the side wall of the grill cover; the rotating shaft passes through the shaft hole and is rotatably connected with the shaft hole.

Further, at least one bearing is arranged in the shaft hole.

Further, the air outlet is provided with an installation frame, and the installation frame includes several support rods extending from the housing to the air outlet, and the rotating shaft is fixedly connected to the support rods.

Further, the air outlet and the air inlet are located at both ends of the cyclone chamber in the axial direction, and the air outlet is arranged at the end of the cyclone chamber close to the ash throwing port.

Further, in a direction perpendicular to the axis of the cyclone chamber, the projection of the filtering structure toward the ash ejection port at least partially overlaps with the area where the ash ejection port is located.

Further, the dust and gas separation device also includes a filter cotton arranged on the airflow path and located downstream of the air outlet, and the air flow discharged from the air outlet is filtered by the filter cotton and then discharged from the dust and gas separation device.

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

1. By setting a rotating shaft and a rotatable filtering structure at the air outlet, and setting the filtering structure to be rotatably connected to the first end of the rotating shaft close to the air outlet, the stability of the filtering structure can be improved, so that a good filtering effect can be performed .

2. By setting the filter structure to be rotatably connected to the first end of the rotating shaft, and setting the filter structure to cooperate with the shell around the air outlet, the filter structure can rotate stably and keep a small distance from the shell to prevent dirt It is not easy to pass through the gap between the filter structure and the housing.

3. By setting the fan structure and grille cover, it can have a good filtering effect and is not easy to be blocked.

4. Setting the fan structure inside the grille cover and connecting the fan structure with the shaft can effectively prevent a large amount of dirt from winding and adhering to the fan structure and/or shaft, thereby affecting the rotation of the filter structure and the filtering effect.

5. By setting the installation frame and at least one bearing, the rotation stability of the filtering structure can be further improved.

6. By arranging filter cotton downstream of the air outlet, the airflow discharged from the air outlet can be further filtered, which improves the filtering effect and makes the filter cotton less likely to be blocked.

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 description

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. Rotational 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 present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. A dust-gas separation device, comprising a housing in which a cyclone chamber for cyclone separation and a dust collection chamber for collecting dirt are arranged in the housing; the dust collection chamber is arranged on the outside of the cyclone chamber and passed through The ash throwing port is connected with the cyclone chamber; the cyclone chamber has an air inlet and an air outlet, and it is characterized in that the air outlet is provided with a rotatable filter structure for filtering the airflow discharged from the cyclone chamber; The air outlet is provided with a rotating shaft, the filtering structure has an inner space, and the rotating shaft extends into the inner space; The rotating shaft has a first end close to the air outlet, and the filtering structure is rotatably connected with the first end. 2 . The dust and gas separation device according to claim 1 , wherein the end of the filtering structure close to the air outlet is in clearance fit with the casing around the air outlet. 3 . 3. The dust and gas separation device according to claim 1, wherein the filtering structure comprises a fan structure and a grill cover fixedly connected to the fan structure, the fan structure is configured to be driven by the airflow to rotate, so The grill cover is provided with several grill holes. 4. The dust and gas separation device according to claim 3, wherein the inner space is formed in the grid cover, the fan structure is arranged in the inner space, and the fan structure is connected to the first One end swivels to connect. 5. The dust and gas separation device according to claim 4, wherein the fan structure comprises a shaft hole and a plurality of blades, and the plurality of blades extend from the side wall of the shaft hole to the side wall of the grid cover; The rotating shaft passes through the shaft hole and is rotatably connected with the shaft hole. 6. The dust and gas separation device according to claim 5, characterized in that at least one bearing is arranged in the shaft hole. 7. The dust and gas separation device according to any one of claims 1 to 6, characterized in that, the air outlet is provided with a mounting frame, and the mounting frame includes several supports extending from the housing to the air outlet rod, and the rotating shaft is fixedly connected to the support rod. 8. The dust and gas separation device according to claim 1, characterized in that, the air outlet and the air inlet are respectively located at both axial ends of the cyclone chamber, and the air outlet is arranged at one end of the cyclone chamber near the ash throwing port . 9. The dust and gas separation device according to claim 8, characterized in that, in a direction perpendicular to the axis of the cyclone chamber, the projection of the filter structure toward the ash throwing port overlaps at least partially with the area where the ash throwing port is located . 10. The dust and gas separation device according to claim 1, characterized in that, the dust and gas separation device also includes a filter cotton arranged on the air flow path and positioned downstream of the air outlet, and the air flow discharged from the air outlet passes through the filter cotton and is filtered from the air. Discharged from the dust and gas separation device.

Images