CN111973059A - Cyclone frame structure, cyclone, dust removal assembly and dust collector - Google Patents
Cyclone frame structure, cyclone, dust removal assembly and dust collector Download PDFInfo
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- CN111973059A CN111973059A CN201910425335.0A CN201910425335A CN111973059A CN 111973059 A CN111973059 A CN 111973059A CN 201910425335 A CN201910425335 A CN 201910425335A CN 111973059 A CN111973059 A CN 111973059A
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- cyclone
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
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Abstract
The invention belongs to the technical field of dust removing equipment, and particularly relates to a cyclone frame structure, a cyclone, a dust removing assembly and a dust collector. The cyclone cylinder frame structure comprises a supporting mechanism and an adjusting mechanism, wherein the supporting mechanism is used for limiting the shape of the cyclone cylinder frame structure, the adjusting mechanism is connected with the supporting mechanism, and the supporting mechanism can deform under the action of the adjusting mechanism, so that the shape of the cyclone cylinder frame structure is changed. According to the cyclone frame structure, the shape of the cyclone frame structure defined by the supporting mechanism is adjusted by the adjusting mechanism, so that the appearance of the cyclone can be changed, impurities such as hair and particles wound on the surface of the cyclone can are dropped off by deformation of the cyclone, the outer surface of the cyclone can be effectively cleaned, the air suction capacity of the cyclone can is improved, and the dust removal effect of the cyclone can is effectively ensured.
Description
Technical Field
The invention belongs to the technical field of dust removing equipment, and particularly relates to a cyclone frame structure, a cyclone, a dust removing assembly and a dust collector.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
In the cyclone cylinder structure on the market at present, in order to filter out large-particle dust, the surface of the cyclone cylinder is provided with structures such as meshes, nylon nets or wire nets, but the structures are all fixed. Because the airflow rotates around the cyclone at high speed, the porous structure on the surface of the cyclone is easy to wind hairs and is not easy to fall off naturally, thereby influencing the air suction effect of the cyclone. On the other hand, the bottom of the cyclone cylinder is generally provided with a skirt structure, and after the cyclone cylinder is used for a long time, large-particle dust attached to the surface of the cyclone cylinder can be clamped at the skirt position and cannot fall off, so that the air suction effect of the cyclone cylinder can be influenced.
Disclosure of Invention
The object of the invention is to at least solve the problem of easy blockage of the surface of the cyclone. The purpose is realized by the following technical scheme:
a first aspect of the invention provides a cyclone frame structure comprising:
a support mechanism for defining the shape of the cyclone frame structure;
the adjusting mechanism is connected with the supporting mechanism, and the supporting mechanism can deform under the action of the adjusting mechanism, so that the shape of the cyclone cylinder frame structure is changed.
According to the cyclone frame structure, the shape of the cyclone frame structure defined by the supporting mechanism is adjusted by the adjusting mechanism, so that the appearance of the cyclone can be changed, impurities such as hair and particles of a porous structure wound on the surface of the cyclone can fall off through the deformation of the cyclone, the outer surface of the cyclone can be effectively cleaned, the air suction capacity of the cyclone can is improved, and the dust removal effect of the cyclone can is effectively ensured.
In addition, the cyclone frame structure according to the invention can also have the following additional technical characteristics:
the supporting mechanism comprises a plurality of supporting rods, and the supporting rods are respectively connected with the adjusting mechanism and are displaced or deformed under the action of the adjusting mechanism, so that the supporting mechanism is deformed.
In some embodiments of the present invention, the support rod comprises a plurality of support rod segments, the plurality of support rod segments are integrally formed or sequentially and fixedly connected, and the plurality of support rod segments can be displaced under the action of the adjusting mechanism.
In some embodiments of the present invention, the support rod is a rubber rod, and the rubber rod can be deformed under the action of the adjusting mechanism.
In some embodiments of the invention, the support mechanism further comprises a connection ring, and the tops of the plurality of support rods are connected with the connection ring, so as to fix the shape of the top of the cyclone frame structure.
In some embodiments of the present invention, the adjusting mechanism includes a radial adjusting unit including a plurality of connecting rods, one ends of which are connected to the plurality of support rods, respectively.
In some embodiments of the present invention, the adjusting mechanism further comprises a lifting unit, and the other ends of the plurality of connecting rods are rotatably connected to the lifting unit, respectively.
In some embodiments of the present invention, the lifting unit is a pull rod, a connection pad is disposed at a bottom of the pull rod, and the other ends of the plurality of connection rods are respectively rotatably connected to the connection pad.
In some embodiments of the present invention, the radial adjusting unit further includes a rotating disc, a plurality of arc-shaped sliding grooves are uniformly distributed on the rotating disc, the other ends of the plurality of connecting rods are slidably connected to the arc-shaped sliding grooves, respectively, and the extending direction of the arc-shaped sliding grooves is limited to be away from or close to the central position of the rotating disc.
The invention also provides a cyclone cylinder, which is provided with the cyclone cylinder frame structure; the cover body covers the cyclone cylinder frame structure.
The invention also provides a dust removal assembly which is provided with a dust cup and a cyclone cylinder arranged in the dust cup, wherein the cyclone cylinder is the cyclone cylinder.
In another aspect of the present invention, a vacuum cleaner having the cyclone cylinder is further provided.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram illustrating a cyclone frame structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the frame structure of the cyclone barrel of FIG. 1 in another state;
fig. 3 schematically shows a structural view of a connection pad according to another embodiment of the present invention;
FIG. 4 is a schematic view of a cyclone having the structure of the frame of the cyclone of FIG. 1;
fig. 5 is a schematic structural view of the cyclone barrel in fig. 4 from another view angle.
The reference symbols in the drawings denote the following:
100: a cyclone frame structure;
10: support mechanism, 11: bracing piece, 111: first support rod segment, 112: second support rod segment, 12: a connecting ring;
20: adjustment mechanism, 21: connecting rod, 22: pull rod, 23: connecting disc, 24: turntable, 241: an arc-shaped chute;
200: a cover body.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
A first aspect of the present invention provides a cyclone frame structure, and FIG. 1 schematically illustrates a structural diagram of a cyclone frame structure according to an embodiment of the present invention. As shown in FIG. 1, the cyclone frame structure 100 in the present embodiment comprises a support mechanism 10 and an adjustment mechanism 20. The support mechanism 10 is used for defining the shape of the cyclone frame structure 100, the adjusting mechanism 20 is connected with the support mechanism 10, and the support mechanism 10 can be deformed under the action of the adjusting mechanism 20, so as to change the shape of the cyclone frame structure 100.
According to the cyclone frame structure 100 disclosed by the invention, the shape of the cyclone frame structure 100 defined by the supporting mechanism 10 is adjusted by adopting the adjusting mechanism 20, so that the appearance of the cyclone can be changed, impurities such as hair, particles and the like wound on a porous structure on the surface of the cyclone can are fallen off through the deformation of the cyclone, the outer surface of the cyclone can be effectively cleaned, the air suction capacity of the cyclone can is improved, and the dust removal effect of the cyclone can is effectively ensured.
Fig. 2 is a schematic structural view of the cyclone barrel frame structure 100 in fig. 1 in another state. As shown in fig. 2, the support mechanism 10 in the present embodiment includes a plurality of support rods 11. The plurality of support rods 11 are respectively connected to the adjusting mechanism 20 and are displaced or deformed by the adjusting mechanism 20, thereby deforming the support mechanism 10.
The frame main body of the cyclone cylinder is formed by the support rods 11, and the space between the adjacent support rods 11 is large, so that the support rods 11 can be conveniently displaced or deformed sufficiently, the deformation of the support mechanism 10 is caused, and the effect of falling off hair and particle impurities in the deformation process of the support mechanism 10 is achieved. Meanwhile, the frame composed of the plurality of support rods 11 is light in weight compared with a frame structure composed of sheet metal parts, so that the weight and the production cost of the cyclone cylinder are reduced conveniently.
In some embodiments of the present invention, each support rod 11 comprises a plurality of support rod segments, which are integrally formed or sequentially and fixedly connected, and which are capable of being displaced by the adjusting mechanism 20.
As shown in fig. 2, the support bar 11 in this embodiment includes a first support bar segment 111 and a second support bar segment 112 connected in series, and the first support bar segment 111 and the second support bar segment 112 are integrally formed. The joint of the first support rod section 111 and the second support rod section 112 is provided with a mounting hole for connecting the adjusting mechanism 20, and the top end of the first support rod section 111 and the bottom end of the second support rod section 112 are also provided with mounting holes. The plurality of first support rod segments 111 surround a straight cylindrical structure at the top of the cyclone frame structure 100, and the plurality of second support rod segments 112 surround a skirt structure at the bottom of the cyclone frame structure 100. By connecting the adjusting mechanism 20 with the mounting hole at the joint of the first support rod section 111 and the second support rod section 112, the first support rod section 111 and the second support rod section 112 can be displaced in the axial direction and the radial direction under the action of the adjusting mechanism 20, so as to cause the deformation of the support mechanism 10, and further achieve the effect of causing the falling of hair and particle impurities in the deformation process of the support mechanism 10.
Further, the support mechanism 10 in this embodiment further includes a connection ring 12, and the top portions of the plurality of support rods 11 are connected to the connection ring 12, so as to fix the shape of the top portion of the cyclone barrel frame structure 100. Because the air sucked from the top of the cyclone is required to be discharged after the cyclone sucks air, in order to ensure that the cyclone has enough ventilation, the top of the cyclone frame structure 100 is fixed through the connecting ring 12, so that the size of the top opening of the cyclone frame structure 100 is ensured to be unchanged in the deformation process of the cyclone frame structure 100, and the cyclone is ensured to have enough ventilation.
The support rod 11 in this embodiment is a rigid rod, wherein the top of the first support rod segment 111 is rotatably connected to the connecting ring 12, so that the support rod 11 is displaced by the adjusting mechanism 20, thereby deforming the support mechanism 10.
In other embodiments of the present invention, the cyclone frame structure may also be formed by more support rod segments or rigid support rod segments with different shapes, so that the cyclone frame structure has different appearance structures.
The support rod of the present invention is not limited to being composed of a plurality of rigid support rod segments, but may be composed of other forms of rods capable of recovering deformation. In some other embodiments of the present invention, the support rods may also be rubber rods. Wherein, the top of a plurality of rubber poles is connected in the clamping ring with fixed or rotatable mode, and the bottom of a plurality of rubber poles is fixed through the connecting piece equally, guarantees that the top of rubber pole and the position of bottom remain unchanged, prevents that the top and the bottom of rubber pole from taking place the displacement under adjustment mechanism's effect. The adjustment mechanism is connected to any position between the top end and the bottom end of the rubber rod, preferably near the bottom end. The rubber rod can be elastically deformed at the joint of the rubber rod and the adjusting mechanism under the action of the adjusting mechanism so as to change the overall shape of the frame structure of the cyclone cylinder, so that the aim of removing hairs and particles on the surface of the cyclone cylinder is fulfilled.
In some embodiments of the present invention, the adjusting mechanism 20 includes a radial adjusting unit including a plurality of connecting rods 21, and one ends of the plurality of connecting rods 21 are connected to the plurality of support rods 11, respectively.
As shown in fig. 2, the adjusting unit in the present embodiment includes connecting rods 21 rotatably connected to the supporting rods 11, and the supporting rods 11 connected thereto can be displaced by dragging each connecting rod 21, thereby causing deformation of the cyclone frame structure 100. In this embodiment, a mounting hole is formed at the joint of the first support rod section 111 and the second support rod section 112, and the connecting rod 21 is rotatably connected in the mounting hole.
Further, in order to facilitate the control of the connecting rods 21, the adjusting mechanism 20 in this embodiment further includes a lifting unit, and the other ends of the plurality of connecting rods 21 are respectively rotatably connected to the lifting unit. The lifting unit moves along the axial direction of the cyclone, and the connecting rod 21 can be driven to rotate, so that the supporting rod 11 is driven to displace, and the deformation of the cyclone frame structure 100 is caused.
As shown in fig. 2, the lifting unit in this embodiment is a pull rod 22, a connecting plate 23 is disposed at the bottom of the pull rod 22, the connecting plate 23 is connected to the other ends of the plurality of connecting rods 21, and the connecting plate 23 and the pull rod 22 may be an integrated structure or a detachable structure. The common control of the plurality of connecting rods 21 is accomplished by the axial movement of the single pull rod 22, so that the plurality of support rods 11 move synchronously, and the cyclone frame structure 100 is ensured to have the same deformation amount.
In some other embodiments of the present invention, the number of the pull rods 22 may be the same as that of the plurality of connection rods 21, and the connection rods 21 connected thereto are controlled by the plurality of pull rods 22, so that different positions of the cyclone frame structure 100 have different deformation amounts according to actual needs, thereby completing corresponding cleaning operations.
Fig. 3 schematically shows a structural view of a connection pad according to another embodiment of the present invention. As shown in fig. 3, the structure of the tie bar 22 and the connecting disc 23 is replaced by a turntable 24 in the present embodiment. A plurality of arc chutes 241 are uniformly distributed on the rotary table 24, one end of the connecting rod 21 is connected with the mounting hole of the support rod 11, the other end of the connecting rod 21 is slidably arranged in the arc chute 241 of the rotary table 24, and the extending direction of the arc chute 241 is limited to be away from or close to the central position of the rotary table 24. When the rotary disk 24 is rotated clockwise, the other end of the connecting rod 21 moves from the central position far from the rotary disk 24 toward the direction close to the central position of the rotary disk 24, so that the radial dimension of the whole of the connecting rod 21 and the rotary disk 24 is shortened, and the contraction movement of the cyclone cylinder frame structure 100 is completed. When the rotary disk 24 is rotated counterclockwise, the other end of the connecting rod 21 moves from the central position close to the rotary disk 24 toward the direction away from the central position of the rotary disk 24, so that the radial dimension of the whole of the connecting rod 21 and the rotary disk 24 is enlarged, thereby completing the expanding movement of the cyclone cylinder frame structure 100. Through the repeated contraction and expansion movements of the cyclone barrel frame structure 100, hair and particle dust deposited on the surface of the cyclone barrel can be effectively removed, and the cyclone barrel is ensured to have a sufficient air suction effect.
In order to ensure that the rotating disc 24 can be smoothly rotated, a driving motor for driving the rotating disc 24 can be further arranged in the cyclone barrel in the embodiment, so that the rotating disc 24 is controlled to rotate through the driving motor, and the cleaning process of the surface of the cyclone barrel is completed. The rotating rod can also be arranged on the top surface or the bottom surface of the rotating disc 24, and the rotating rod is rotated to drive the rotating disc 24 to rotate, so that the same technical effect can be achieved.
In another aspect of the present invention, a cyclone having the cyclone frame structure 100 of any of the above embodiments is also provided.
FIG. 4 is a schematic view of a cyclone having the cyclone frame structure 100 of FIG. 1. Fig. 5 is a schematic structural view of the cyclone barrel in fig. 4 from another view angle. As shown in fig. 4 and 5, the cyclone barrel of the present embodiment includes a cyclone barrel frame structure 100 and a cover 200 covering the cyclone barrel frame structure 100. In order to facilitate the deformation of the cyclone, the cover 200 in this embodiment is made of fabric. The upper side of the cover 200 is connected to the mounting hole or the connecting ring 12 above the first support rod segment 111, and the lower side of the cover 200 is sewn to the mounting hole below the second support rod segment 112. The part of the cover 200 sleeved on the first support rod section 111 is a ventilation structure with meshes, so that the cyclone can suck air conveniently. The part of the cover 200 covering the second support rod section 112 is of an airtight structure, so that hairs and particle impurities falling off from the surface of the cyclone cylinder after the cyclone cylinder deforms further fall into a dust cup below the cyclone cylinder.
In another aspect of the present invention, a dust removing assembly is further provided, where the dust removing assembly includes a dust cup and a cyclone drum disposed in the dust cup, where the cyclone drum is the cyclone drum in the above embodiment.
In another aspect of the present invention, a vacuum cleaner having the dust removing assembly of the above embodiment is also provided.
According to the cyclone, the dust removal assembly and the dust collector, the shape of the cyclone frame structure 100 defined by the supporting mechanism 10 is adjusted by the adjusting mechanism 20, so that the appearance of the cyclone can be changed, impurities such as hair and particles in a porous structure wound on the surface of the cyclone can fall off through the deformation of the cyclone, the outer surface of the cyclone can be effectively cleaned, the air suction capacity of the cyclone can be improved, and the dust removal effect of the cyclone, the dust removal assembly and the dust collector can be effectively ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. A cyclone frame structure, comprising:
a support mechanism for defining the shape of the cyclone frame structure;
the adjusting mechanism is connected with the supporting mechanism, and the supporting mechanism can deform under the action of the adjusting mechanism, so that the shape of the cyclone cylinder frame structure is changed.
2. The cyclone frame structure of claim 1, wherein the supporting mechanism comprises a plurality of supporting rods, and the supporting rods are respectively connected with the adjusting mechanism and are displaced or deformed by the adjusting mechanism, so as to deform the supporting mechanism.
3. The cyclone frame structure of claim 2, wherein the support rod comprises a plurality of support rod segments, the plurality of support rod segments are integrally formed or sequentially and fixedly connected, and the plurality of support rod segments can be displaced under the action of the adjusting mechanism.
4. The cyclone frame structure of claim 2, wherein the support rods are rubber rods, and the rubber rods can be deformed under the action of the adjusting mechanism.
5. The cyclone frame structure of any one of claims 2 to 4, wherein the support mechanism further comprises a connection ring, and the tops of the plurality of support rods are connected with the connection ring, so as to fix the shape of the top of the cyclone frame structure.
6. The cyclone frame structure of any one of claims 2 to 4, wherein the adjustment mechanism comprises a radial adjustment unit comprising a plurality of connection rods, one ends of which are connected to the plurality of support rods, respectively.
7. The cyclone frame structure of claim 6, wherein the adjusting mechanism further comprises a lifting unit, and the other ends of the plurality of connecting rods are rotatably connected to the lifting unit, respectively.
8. The cyclone frame structure of claim 7, wherein the lifting unit is a pull rod, a connection pad is disposed at a bottom of the pull rod, and the other ends of the plurality of connection rods are rotatably connected to the connection pad, respectively.
9. The cyclone frame structure of claim 6, wherein the radial adjusting unit further comprises a rotating disc, a plurality of arc chutes are uniformly distributed on the rotating disc, the other ends of the plurality of connecting rods are slidably connected with the arc chutes respectively, and the extending direction of the arc chutes is defined as being far away from or close to the central position of the rotating disc.
10. A cyclone cartridge, comprising:
a cyclone frame structure according to any of claims 1-9;
the cover body covers the cyclone cylinder frame structure.
11. A dusting assembly comprising a dirt cup and a cyclone disposed within the dirt cup, wherein the cyclone is a cyclone according to claim 10.
12. A vacuum cleaner having a dusting assembly as claimed in claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425335.0A CN111973059B (en) | 2019-05-21 | 2019-05-21 | Cyclone frame structure, cyclone, dust removal assembly and dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425335.0A CN111973059B (en) | 2019-05-21 | 2019-05-21 | Cyclone frame structure, cyclone, dust removal assembly and dust collector |
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| Publication Number | Publication Date |
|---|---|
| CN111973059A true CN111973059A (en) | 2020-11-24 |
| CN111973059B CN111973059B (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910425335.0A Active CN111973059B (en) | 2019-05-21 | 2019-05-21 | Cyclone frame structure, cyclone, dust removal assembly and dust collector |
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| JPH1142412A (en) * | 1997-07-28 | 1999-02-16 | Japan Vilene Co Ltd | Filer medium-exchangeable filter |
| CN106955538A (en) * | 2012-11-29 | 2017-07-18 | 唐纳森公司 | Filter element, feature and the method for assembling, filter assemblies and filter element combination |
| CN208003620U (en) * | 2017-12-12 | 2018-10-26 | 常州市康安环保设备有限公司 | The Filter-bag carcass of quick deashing |
| CN208448863U (en) * | 2018-05-14 | 2019-02-01 | 徐州冀华金属材料科技有限公司 | The flat formula bracket of dust removal and filtration bag |
| CN109289357A (en) * | 2018-10-09 | 2019-02-01 | 江苏森隆环保科技有限公司 | A kind of limit hook bag cage |
| CN109331560A (en) * | 2018-12-17 | 2019-02-15 | 江苏方舟环保科技有限公司 | A kind of dust-removal cloth-bag for facilitating dust to collect |
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2019
- 2019-05-21 CN CN201910425335.0A patent/CN111973059B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1142412A (en) * | 1997-07-28 | 1999-02-16 | Japan Vilene Co Ltd | Filer medium-exchangeable filter |
| CN106955538A (en) * | 2012-11-29 | 2017-07-18 | 唐纳森公司 | Filter element, feature and the method for assembling, filter assemblies and filter element combination |
| CN208003620U (en) * | 2017-12-12 | 2018-10-26 | 常州市康安环保设备有限公司 | The Filter-bag carcass of quick deashing |
| CN208448863U (en) * | 2018-05-14 | 2019-02-01 | 徐州冀华金属材料科技有限公司 | The flat formula bracket of dust removal and filtration bag |
| CN109289357A (en) * | 2018-10-09 | 2019-02-01 | 江苏森隆环保科技有限公司 | A kind of limit hook bag cage |
| CN109331560A (en) * | 2018-12-17 | 2019-02-15 | 江苏方舟环保科技有限公司 | A kind of dust-removal cloth-bag for facilitating dust to collect |
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|---|---|
| CN111973059B (en) | 2022-03-29 |
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