CN112915661A - Secondary filter assembly and filter device - Google Patents
Secondary filter assembly and filter device Download PDFInfo
- Publication number
- CN112915661A CN112915661A CN202110139767.2A CN202110139767A CN112915661A CN 112915661 A CN112915661 A CN 112915661A CN 202110139767 A CN202110139767 A CN 202110139767A CN 112915661 A CN112915661 A CN 112915661A
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- CN
- China
- Prior art keywords
- dust
- dirt
- assembly
- fluid
- filter assembly
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
Abstract
The invention provides a secondary filter device, the secondary filter assembly comprising: the cone group, lead dirt casing and secondary collection dirt portion, the bottom of cone group is through leading dirt casing and secondary collection dirt portion intercommunication, leads the dirt casing including having the first dirt passageway of leading that directly leads the dirt region and indirectly lead the dirt region, directly leads dirt region and secondary collection dirt portion intercommunication, and indirect dirt region setting of leading is provided with at the upper reaches that directly leads the dirt region and the bottom leads the dirt board. The invention also provides a filtering device, which comprises the secondary filtering component. The secondary filter assembly and the filter device provided by the invention can not generate dust to be directly retained.
Description
Technical Field
The invention relates to the technical field of cleaning equipment, in particular to a secondary filtering assembly and a filtering device.
Background
In the existing dust suction equipment, dust particles in dust-containing fluid are filtered and separated by a filter device in a main machine. Secondary filter assemblies are typically included in the filter assemblies to separate dust and fluid. However, the dust guide housing of the secondary filter assembly is assembled with the fluid housing of the fluid channel assembly, and the fluid channel in the fluid housing is located in the dust guide housing, so that a dust retention area is formed in the dust guide channel of the dust guide housing, and dust cannot be smoothly guided into the dust collection chamber.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a secondary filter device, the secondary filter assembly comprising: the cone group, lead dirt casing and secondary collection dirt portion, the bottom of cone group is through leading dirt casing and secondary collection dirt portion intercommunication, leads the dirt casing including having the first dirt passageway of leading that directly leads the dirt region and indirectly lead the dirt region, directly leads dirt region and secondary collection dirt portion intercommunication, and indirect dirt region setting of leading is provided with at the upper reaches that directly leads the dirt region and the bottom leads the dirt board.
Further, the dust guide plate is disposed to be inclined toward the direct dust guide area.
Further, lead the dirt board including first dust deflector and second dust deflector, the dust leads the dirt board, first dust deflector, direct dust area entering secondary dust collection portion of leading through the second in proper order.
Furthermore, lead dirt casing still include that the second leads dirt passageway and third and lead dirt passageway, the second leads dirt passageway and third and leads the dirt passageway and communicate with each other in proper order with first dirt passageway of leading, and first dirt passageway of leading is the annular passage structure, and the second leads dirt passageway and third and leads the dirt passageway and be the cambered surface structure, and the third leads the bottom of dirt passageway and is connected with secondary dust collection portion.
Further, the cone group is constituted by a plurality of cones arrayed in the circumferential direction, each of the plurality of cones being arranged obliquely and forming a housing chamber inside.
Further, the secondary dust collecting part comprises a dust collecting part and a bottom plate part, and the bottom plate part is arranged on one side of the dust collecting part and can move in the axial direction relative to the dust collecting part.
Further, the dust collecting part comprises a dust collecting cover, a dust collecting cavity is formed in the dust collecting cover, an opening part is formed in the partial area and the bottom of the top of the dust collecting cover, and the bottom of the third dust guide channel is arranged in the opening part.
Further, the bottom plate part comprises a column body and a bottom plate which are connected with each other, the column body is arranged in the dust hood, and the bottom plate can be in close contact with the bottom end of the dust hood or be far away from the dust hood.
The present invention also provides a filtration apparatus comprising the secondary filtration assembly described above, the filtration apparatus further comprising a fluid conduit assembly comprising a fluid inlet and a fluid outlet, and a primary filtration assembly surrounding at least a portion of the fluid conduit assembly and located downstream of the fluid outlet, the secondary filtration assembly being located downstream of the primary filtration assembly.
Further, the fluid conduit assembly further comprises a fluid conduit and a fluid housing connected to each other, the fluid outlet is provided on the fluid housing, and one end of the primary filter assembly is connected to the fluid housing.
According to the secondary filtering component and the filtering device provided by the invention, the inclined dust guide plate is arranged at the bottom of the indirect dust guide area, so that dust in the indirect dust guide area can be smoothly guided into the second dust guide channel and then enters the dust collection cavity, and the dust cannot be directly retained.
Drawings
FIG. 1 is a schematic view of a filtration apparatus according to an embodiment of the present invention;
FIG. 2 is an exploded schematic view of a filtration apparatus according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a filter apparatus according to an embodiment of the invention;
FIG. 4 is a schematic view of a fluid enclosure according to an embodiment of the invention;
FIG. 5 is a schematic view of a secondary filter assembly according to an embodiment of the invention;
FIG. 6 is a schematic view of a cartridge of a secondary filter assembly in a second position according to an embodiment of the present invention;
FIG. 7 is an exploded schematic view of a secondary filter assembly according to an embodiment of the invention;
FIG. 8 is a partially schematic illustration of a secondary filter assembly according to an embodiment of the invention;
FIG. 9 is a partial schematic view of a secondary filter assembly with a taper removed according to an embodiment of the invention.
Description of the reference numerals
100 a fluid conduit assembly; 110 a first fluid conduit; 120 a second fluid conduit; 130 a fluid housing; 131 a third fluid conduit; 132 a fluid outlet; 133 fitting a projection; 134 a hollow region; 200 primary filtration modules; 210 an upper lap portion; 220 a lower lap portion; 300 a secondary filtration component; 310, a cone group; 310a first cone group; 310b a second cone set; 311 a cone; 312 a receiving cavity; 320 a dust guiding shell; 321 a first dust guide channel; 3211 direct dust guiding area; 3212 an indirect dust-guiding area; 3213 a first dust guide plate; 3214 a second dust guide plate; 322 a second dust guiding channel; 323 a third dust guiding passage; 324 a receiving area; 325 an assembly groove; 326 a mounting part; 330 a secondary dust collecting part; 331 a dust collecting part; 332 a bottom plate portion; 333 dust collecting cover and 334 dust collecting cavity; 335 an open part; 336 columns; 337 backplane
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
A dust extraction apparatus generally comprises a housing, a motor assembly and a filter arrangement. The motor component and the filtering device are arranged in the shell. The filtration apparatus may include a fluid conduit assembly 100, a primary filter assembly 200, and a secondary filter assembly 300, the fluid conduit assembly 100 having a fluid inlet and a fluid outlet, the primary filter assembly 200 surrounding at least a portion of the fluid conduit assembly and being downstream of the fluid outlet;
the bottom end of the fluid conduit assembly 100 forms a fluid inlet and interfaces with the fluid inlet of the housing, and the top end of the fluid conduit assembly 100 forms a fluid outlet 132. That is, the dusty fluid enters the fluid conduit assembly 100 through the fluid inlet and then exits through the fluid outlet 132 to enter the filter device for filtering, and the filtered gas passes through the motor components and then exits to the outside of the host machine.
In detail, the filter device may further include a pre-filter member. Secondary filter assembly 300 includes a cone assembly 310, where cone assembly 310 is formed by a plurality of cones 311 arranged circumferentially. A receiving cavity 312 is formed inside the cone group 310, the pre-filter member is located in front of the motor member, and at least a portion of the pre-filter member and/or the motor member is disposed in the receiving cavity 312. At least one part of the pre-filter component and/or the motor component is arranged in the containing cavity.
In particular, the schematic view of the filtering apparatus shown in fig. 1 to 9, as shown in the spatial arrangement, the fluid conduit assembly 100 may include a first fluid conduit 110, a second fluid conduit 120 and a third fluid conduit 131 which are communicated from bottom to top. In other words, the first fluid conduit 110, the second fluid conduit 120 and the third fluid conduit 131 are arranged along the direction in which the fluid flows. The bottom end of the first fluid conduit 110 interfaces with the fluid inlet of the housing and the top end contacts the bottom end of the second fluid conduit 120. The second fluid conduit 120 and the third fluid conduit 131 may be of unitary construction, with the distal outlet of the third fluid conduit 131 forming the fluid outlet 132. Wherein the first fluid conduit 110 and the second fluid conduit 120 are longitudinal conduits and the third fluid conduit 131 is an arc-shaped transverse conduit. The dusty fluid enters through the bottom end of the first fluid conduit 110 and exits through the fluid outlet 132. In spatial arrangement, i.e., along the axial direction of the fluid conduit, fluid outlet 132 is located between primary filter assembly 200 and cone set 310. Cone set 310 is located downstream of primary filter assembly 200. The primary filter assembly 200 may be a filter mesh, wherein the filter mesh may be made of metal or plastic. After the dust-containing fluid is discharged from the fluid outlet 132, the dust-containing fluid passes through the primary filter assembly 200 for primary filtering, and then enters the cone set 310 for secondary filtering, and the cone set 310 is positioned at one side of the primary filter assembly 200 and does not surround the fluid pipeline assembly 100, so that the arrangement can increase the number of cones 311 in the cone set 310 without increasing the volume of the dust suction apparatus, thereby improving the filtering effect.
In addition, the fluid conduit assembly 100 may further include a fluid housing 130, the second fluid conduit 120 extending to below the fluid housing 130, a third fluid conduit 131 located inside the fluid housing 130, and a fluid outlet 132 opened on a side wall of the fluid housing 130. Also included on fluid housing 130 is an annular attachment portion that attaches to upper bridge portion 210 of primary filter assembly 200. That is, the fluid housing 130 is connected to the upper portion of the primary filter assembly 200. Also included in the fluid housing 130 is a hollow region 134, the hollow region 134 surrounding a portion of the second fluid conduit 120 and/or the third fluid conduit 131. In addition, a fitting projection 133 is further provided on the top end surface of the third fluid conduit 131 for fitting with the secondary filter assembly 300.
As described above, the secondary filter assembly 300 includes the cone assembly 310, and the secondary filter assembly 300 may further include the dust guide housing 320 and the secondary dust collecting part 330, and the bottom end of the cone assembly 310 communicates with the inside of the secondary dust collecting part 330 through the dust guide housing 320. The dust guide housing 320 is mounted at a position above the fluid housing 130.
That is, the cone group 310 is located at the top of the dust guiding housing 320, and the bottom ends of the plurality of cones 311 in the cone group 310 communicate with the interior of the dust guiding housing 320. Wherein the cones 311 may be arranged obliquely or vertically. Preferably, the cone 310 is arranged obliquely, so that the overall volume of the filter device can be reduced. In order to ensure the filtering effect, the number of cones 311 is at least 12. In the present embodiment, the number of cones is 18.
The bottom end of the cone group 310 is communicated with the secondary dust collecting part 330 through a dust guiding housing 320, the dust guiding housing 320 comprises a first dust guiding passage 321 having a direct dust guiding area 3211 and an indirect dust guiding area 3212, the direct dust guiding area 321 is communicated with the secondary dust collecting part 330, the indirect dust guiding area 3212 is arranged at the upstream of the direct dust guiding area 3211, and a dust guiding plate is arranged at the bottom. The dust guide plate is arranged to incline towards the direct dust guide area. The dust guide plate comprises a first dust guide plate 3213 and a second dust guide plate 3214, and the dust sequentially passes through the second dust guide plate, the first dust guide plate and the direct dust guide area to enter the secondary dust collecting part.
The dust guiding housing 320 further includes a second dust guiding passage 322 and a third dust guiding passage 323, the second dust guiding passage 322 and the third dust guiding passage 323 are of arc structures, and the first dust guiding passage 321 is of an annular passage structure. The bottom of the third dust guide passage 323 is open, and a fitting portion 326 is formed in a region near the bottom end surface thereof, and the fitting portion 326 is fittable with the secondary dust collecting portion 330, that is, the third passage 323 is connected with the secondary dust collecting portion 330 via the fitting portion 326.
The cone group 310 includes a first cone group located above the direct dust guiding area 3211 and a second cone group located above the indirect dust guiding area 3212. The lower region of the indirect dust guiding region 3212 and the inner regions of the arc structures of the second dust guiding passage 322 and the third dust guiding passage 323 form a receiving region 324, and the receiving region 324 can be used for receiving the third fluid conduit 131.
Specifically, the cones in the first cone group are communicated with the interior of the direct dust guiding area 3211, so that the dust particles in the cones of the first cone group can sequentially enter the third dust guiding passage 323 through the direct dust guiding area 3211 and the second dust guiding passage 322.
The cone in the second cone group is communicated with the interior of the indirect dust guiding area 3212, so that dust particles in the cone in the second cone group can sequentially enter the third dust guiding channel 323 through the indirect dust guiding area 3212, the direct dust guiding area 3211 and the second dust guiding channel 322.
In order to enable dust particles in the cones of the second cone group to be quickly introduced into the direct dust guiding area 3211, the bottom of the indirect dust guiding area 3212 is set to be an inclined structure, so as to form a dust guiding plate capable of guiding dust in the indirect dust guiding area 3212 into the direct dust guiding area 3211. In this embodiment, since the third dust guiding passage 323 is not an annular structure, and there are some cones above the receiving area 324, dust in these cones cannot be directly guided out, and the arrangement of the first dust guiding plate 3213 and the second dust guiding plate 3214 is easier to split and guide dust particles filtered out from the cones above the dust guiding plates, so as to quickly guide the dust particles to the direct dust guiding area.
A fitting protrusion 133 on the top end surface of the third fluid pipe 131 may be disposed in the receiving region 324, and a fitting groove 325 may be provided on the dust guide housing 320, and the fitting groove 325 may cooperate with the fitting protrusion 133 to facilitate positioning between the fluid housing 130 and the dust guide housing 320. When the dust guide housing 320 is assembled with the fluid housing 130, the second dust guide passage 322 and the third dust guide passage 323 are disposed in the hollow area 134, and the assembly protrusion 133 is engaged with the assembly groove 325, so that the dust guide housing 320 is assembled at an upper position of the fluid housing 130.
Referring to the secondary dust collecting part 330 of the secondary filter assembly 300 in detail, the secondary dust collecting part 330 may include a dust collecting part 331 and a bottom plate part 332, and the bottom plate part 332 may be movable in a longitudinal direction with respect to the dust collecting part 331. The dust collecting part 331 includes an annular dust collecting cover 333, and a dust collecting chamber 334 is formed therein. Both partial areas of the top and bottom of the dust cage 333 form an opening 335, and the fitting portion 326 of the third dust guide passage 323 is seated in the opening 335 so that the dust in the third dust guide passage 323 can enter the dust collecting chamber 334.
In addition, the dust cage 333 further includes a ring-shaped coupling part at a lower portion thereof, which is coupled to the lower overlapping part 220 of the primary filter assembly 200. That is, the dust cage 333 is connected to the lower portion of the primary filter assembly. The primary filter assembly 200 surrounds the outside of the third dust guide path 323 and the dust cage 333. That is, the primary filter assembly 200 surrounds the outside of the secondary dust collecting part 330.
The bottom plate portion 332 has a hollow structure and includes a cylinder 336 and a bottom plate 337, wherein the bottom of the bottom plate 337 is in contact with the first fluid conduit 110, and the second fluid conduit 120 is disposed inside the bottom plate 337 and the cylinder 336. The post 336 is disposed within the dust cage 333 and is movable between a first position and a second position, wherein the first position is above the second position. When the top end of the cylindrical portion is at the first position, the bottom plate 337 is in close contact with the bottom end of the dust cage 333, the bottom plate 337 forms a bottom plate of the dust cage 333, and dust can be retained in the dust chamber 334. When the top end of the post 336 is in the second position, the base plate 337 is spaced from the dust cup 333 to allow dust to exit the dust chamber 334 for cleaning.
According to the secondary filtering component and the filtering device provided by the invention, the inclined dust guide plate is arranged at the bottom of the indirect dust guide area, so that dust in the indirect dust guide area can be smoothly guided into the second dust guide channel and then enters the dust collection cavity, and the dust cannot be directly retained.
Although the preferred embodiments of the present application have been described, those skilled in the art may make various modifications and alterations to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, such modifications and variations are intended to be included herein within the scope of this disclosure.
Claims (10)
1. A secondary filter assembly, comprising: the cone group, lead dirt casing and secondary collection dirt portion, the bottom of cone group is through leading dirt casing and secondary collection dirt portion intercommunication, leads the dirt casing including having the first dirt passageway of leading that directly leads the dirt region and indirectly lead the dirt region, directly leads dirt region and secondary collection dirt portion intercommunication, and indirect dirt region setting of leading is provided with at the upper reaches that directly leads the dirt region and the bottom leads the dirt board.
2. The secondary filter assembly of claim 1 wherein the dust deflector is disposed to be inclined toward the direct dust deflector area.
3. The secondary filter assembly of claim 1 wherein the dust deflector comprises a first dust deflector and a second dust deflector, the dust passing through the second dust deflector, the first dust deflector, and the direct dust area in sequence into the secondary dust collection section.
4. The secondary filter assembly of claim 1, wherein the dust guide housing further comprises a second dust guide channel and a third dust guide channel, the second dust guide channel and the third dust guide channel are sequentially communicated with the first dust guide channel, the first dust guide channel is of an annular channel structure, the second dust guide channel and the third dust guide channel are of an arc surface structure, and the bottom of the third dust guide channel is connected with the secondary dust collecting part.
5. The secondary filter assembly as claimed in claim 1, wherein the cone group is composed of a plurality of cones arranged in a circumferential direction, each of the plurality of cones being arranged obliquely and forming a receiving chamber therein.
6. The secondary filter assembly of claim 3 wherein the secondary dirt collection portion includes a dirt collection portion and a floor portion, the floor portion being disposed on one side of the dirt collection portion and being movable in an axial direction relative to the dirt collection portion.
7. The secondary filter assembly of claim 5, wherein the dust collecting part comprises a dust collecting cover, the dust collecting cover is internally provided with a dust collecting cavity, the top part and the bottom part of the dust collecting cover form an opening part, and the bottom part of the third dust guide channel is arranged in the opening part.
8. The secondary filter assembly as claimed in claim 6, wherein the bottom plate part comprises a post and a bottom plate connected with each other, the post being disposed inside the dust cage, and the bottom plate being capable of being brought into close contact with or spaced apart from the bottom end of the dust cage.
9. A filtration apparatus comprising a secondary filtration assembly as claimed in any one of claims 1 to 7, the filtration apparatus further comprising a fluid conduit assembly comprising a fluid inlet and a fluid outlet, and a primary filtration assembly surrounding at least a portion of the fluid conduit assembly and downstream of the fluid outlet, the secondary filtration assembly being downstream of the primary filtration assembly.
10. The filtration apparatus of claim 9, wherein the fluid conduit assembly further comprises a fluid conduit and a fluid housing connected to each other, the fluid outlet being provided in the fluid housing, and one end of the primary filter assembly being connected to the fluid housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139767.2A CN112915661B (en) | 2021-02-01 | 2021-02-01 | Secondary filter assembly and filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139767.2A CN112915661B (en) | 2021-02-01 | 2021-02-01 | Secondary filter assembly and filter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112915661A true CN112915661A (en) | 2021-06-08 |
| CN112915661B CN112915661B (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110139767.2A Active CN112915661B (en) | 2021-02-01 | 2021-02-01 | Secondary filter assembly and filter device |
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| CN (1) | CN112915661B (en) |
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| Publication number | Publication date |
|---|---|
| CN112915661B (en) | 2022-09-20 |
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