CN112090185A - Ventilation dust filter - Google Patents
Ventilation dust filter Download PDFInfo
- Publication number
- CN112090185A CN112090185A CN202010863316.9A CN202010863316A CN112090185A CN 112090185 A CN112090185 A CN 112090185A CN 202010863316 A CN202010863316 A CN 202010863316A CN 112090185 A CN112090185 A CN 112090185A
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- Prior art keywords
- frame
- filter
- filter element
- groove
- elastic
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- 239000000428 dust Substances 0.000 title claims abstract description 33
- 238000009423 ventilation Methods 0.000 title claims abstract description 29
- 238000003825 pressing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract description 4
- 235000011613 Pinus brutia Nutrition 0.000 abstract description 4
- 241000018646 Pinus brutia Species 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004579 marble Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Classifications
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a ventilation dust filter. The filter comprises a frame, a filter element and a locking device; one end of the frame is provided with an opening through which the filter element can pass, and the frame is provided with a mounting groove corresponding to the filter element; the filter element is inserted in the mounting groove, and an elastic device which is abutted against the filter element is arranged in the mounting groove; the locking device is used for locking the filter element in the mounting groove. Among this ventilation dust filter, the resilient means with the filter core butt has been set up in the mounting groove, resilient means can compress tightly the filter core in the mounting groove, and can play the cushioning effect when ventilation dust filter receives the vibration, can absorb the vibration of filter core, avoid filter core striking frame, thereby can effectively reduce the noise that ventilation dust filter produced, prevent that filter core and frame from producing deformation and damage, also can effectively avoid locking device not hard up and lead to the filter core pine to take off simultaneously, and is more safe and reliable.
Description
Technical Field
The invention belongs to the field of heat dissipation, and particularly relates to a ventilation dust filter.
Background
As is known, the failure rate of power electronic devices increases with the increase of the ambient temperature, and the service life decreases with the increase of the ambient temperature, so that many power electronic devices generally need to design a reasonable integral air duct inside the box body in order to meet the requirements of ventilation and heat dissipation, and as an air inlet of the key part of the air duct, the size of the air inlet volume and the capability of filtering impurities (dust, sand dust, floccule, and the like) in the air directly affect the ventilation and heat dissipation performance of the whole cabinet, and a ventilation and dust filtration device is generally arranged at the air inlet in order to filter the impurities and improve the air inlet volume. For example, in a rail transit traction device using air cooling for heat dissipation, a ventilation and dust filtration device is usually installed at an air inlet of the rail transit traction device to ensure long-term and stable operation of internal components of the traction device.
Ventilation dust filters are usually composed of a frame and a filter element which is fastened to the frame by means of screws. When the equipment runs, the equipment can be impacted by vibration, and a certain gap can be reserved between the filter element and the frame for ensuring the smooth disassembly and assembly of the filter element. Therefore, in the running process of the railway vehicle, the filter element is easy to collide with the frame to generate abnormal sound; after long-time use, the frame and the filter element are easy to deform and damage; the bolt also appears becoming flexible when receiving the vibration and leads to the filter core pine to take off.
Disclosure of Invention
Based on the above, the invention provides a ventilation dust filter which can prevent a filter element from impacting a frame, and is beneficial to reducing noise and preventing the filter element from loosening.
In order to achieve the purpose, the invention adopts the technical scheme that:
the ventilation dust filtering device comprises a frame, a filter element and a locking device, wherein one end of the frame is provided with an opening through which the filter element can pass, the frame is provided with a mounting groove corresponding to the filter element, the filter element is inserted in the mounting groove, and an elastic device abutted against the filter element is arranged in the mounting groove; the locking device is used for locking the filter element in the mounting groove. The ventilation dust filtering device provided by the invention has the beneficial effects that: among this ventilation dust filter, the resilient means with the filter core butt has been set up in the mounting groove, resilient means can compress tightly the filter core in the mounting groove, and can play the cushioning effect when ventilation dust filter receives the vibration, can absorb the vibration of filter core, avoid filter core striking frame, thereby can effectively reduce the noise that ventilation dust filter produced, prevent that filter core and frame from producing deformation and damage, also can effectively avoid locking device not hard up and lead to the filter core pine to take off simultaneously, and is more safe and reliable.
Preferably, the frame is square with an opening at the rear end, and the mounting groove comprises a front groove with a backward opening arranged at the front part of the frame, a left groove with a rightward opening arranged at the left part of the frame, and a right groove with a leftward opening arranged at the right part of the frame; the elastic device comprises a first elastic piece arranged on the front inner wall of the front groove, a second elastic piece arranged on the left inner wall of the left groove and the right inner wall of the right groove, and a third elastic piece arranged on the upper inner wall and/or the lower inner wall of the left groove and the upper inner wall and/or the lower inner wall of the right groove; the front part, the left part and the right part of the filter element are respectively inserted into the front groove, the left groove and the right groove, and the first elastic piece, the second elastic piece and the third elastic piece are all abutted to the filter element.
Preferably, the number of the first elastic members is two or more and the first elastic members are dispersedly arranged on the front inner wall of the front groove along the left-right direction.
Preferably, the second elastic piece and the third elastic piece are elastic pieces, the elastic pieces are V-shaped, the rear ends of the elastic pieces are fixed on the frame, and the front ends of the elastic pieces can be arranged on the frame in a back-and-forth moving mode.
Preferably, the front end of the elastic sheet is provided with a pin, the frame is provided with a first waist hole matched with the pin, and the pin is inserted into the first waist hole and can move back and forth along the first waist hole so as to arrange the front end of the elastic sheet on the frame in a back and forth manner.
Preferably, a guide block is arranged on the left inner wall of the left groove and/or the right inner wall of the right groove, and a guide surface inclined outwards from front to back is arranged at the rear part of the guide block.
Preferably, the locking device comprises an impact lock arranged at the rear end of the filter element and a lock hole arranged on the frame, and a lock tongue of the impact lock is inserted into the lock hole.
Preferably, the filter element further comprises an anti-falling device, and the anti-falling device is used for limiting the filter element to move out of the mounting groove.
Preferably, the anti-falling device comprises at least one spring pin, a second waist hole is formed in the frame, a limiting hole corresponding to the second waist hole is formed in the filter element, and the spring pin is inserted into the second waist hole and the limiting hole at the same time.
Preferably, the filter element comprises a base frame and two or more filter screens, the base frame is provided with connecting screws, each filter screen is provided with connecting holes aligned with the connecting screws, the filter screens are vertically stacked through the connecting holes and serially connected to the connecting screws, and the connecting screws are detachably screwed with connecting nuts for pressing the filter screens on the base frame.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is an overall block diagram of a preferred embodiment of the present invention;
FIG. 2 is a block diagram of the preferred embodiment of the present invention in a disassembled state;
FIG. 3 is a perspective view of the frame in a top view of the preferred embodiment of the present invention;
FIG. 4 is a perspective view of the side view of the frame of the preferred embodiment of the present invention;
FIG. 5 is an exploded view of the frame in the preferred embodiment of the present invention;
FIG. 6 is an exploded view of the cartridge of the preferred embodiment of the present invention;
fig. 7 is a schematic view of the installation of the spring pin in the preferred embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10-a frame; 11-front groove; 12-left groove; 13-right groove; 14-a first waist hole; 15-second waist hole; 20-a filter element; 21-a limiting hole; 22-a base frame; 23-a filter screen; 24-a connection hole; 31-a slam lock; 32-a keyhole; 311-a locking tongue; 312-a return spring; 313-a lock body; 41-a first elastic member; 42-a second elastic member; 43-a third elastic member; 44-pins; 45-a guide block; 50-a spring pin; 51-a marble; 52-snap fasteners.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a preferred embodiment of the present invention, a ventilation dust filtering apparatus, includes a frame 10, a filter element 20, and a locking device. One end of the frame 10 is provided with an opening through which the filter element 20 can pass, and the frame 10 is provided with a mounting groove corresponding to the filter element 20; the filter element 20 is inserted in the mounting groove, and an elastic device which is abutted against the filter element 20 is arranged in the mounting groove; the locking means is used to lock the cartridge 20 in the mounting channel.
Among the foretell ventilation dust filter, the resilient means with filter core 20 butt has been set up in the mounting groove, resilient means can compress tightly filter core 20 in the mounting groove, and can play the cushioning effect when ventilation dust filter receives the vibration, can absorb filter core 20's vibration, avoid filter core 20 striking frame 10, thereby can effectively reduce the noise that ventilation dust filter produced, prevent that filter core 20 and frame 10 from producing and warping and damaging, also can effectively avoid locking device not hard up and lead to filter core 20 pine to take off simultaneously, and is safe and reliable more.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
referring to fig. 1 to 5, in the present embodiment, the frame 10 is square with an open rear end, and the mounting grooves include a front groove 11 with a rear opening, which is disposed at the front of the frame 10, a left groove 12 with a right opening, which is disposed at the left of the frame 10, and a right groove 13 with a left opening, which is disposed at the right of the frame 10; the elastic means includes a first elastic member 41 disposed on the front inner wall of the front groove 11, a second elastic member 42 disposed on the left inner wall of the left groove 12 and the right inner wall of the right groove 13, and a third elastic member 43 disposed on the upper inner wall of the left groove 12 and the upper inner wall of the right groove 13; the front part, the left part and the right part of the filter element 20 are respectively inserted in the front groove 11, the left groove 12 and the right groove 13, and the first elastic piece 41, the second elastic piece 42 and the third elastic piece 43 are all abutted against the filter element 20; the first elastic member 41 can cushion the filter element 20 in the front-rear direction, the second elastic member 42 can cushion the filter element 20 in the left-right direction, and the third elastic member 43 can cushion the filter element 20 in the up-down direction, so that the impact between the filter element 20 and the frame 10 can be effectively avoided from each direction, and in addition, after the locking device is unlocked, the first elastic member 41 can automatically push the filter element 20 out from the opening of the frame 10 toward the rear, thereby facilitating the dismounting operation of the filter element 20. In other embodiments, the third elastic element 43 may be disposed on the lower inner walls of the left and right grooves 12 and 13, and the elastic device may also be disposed in other manners, for example, the elastic element is disposed only on the front inner wall of the front groove 11, the elastic element is disposed only in the left groove 12 or the right groove 13, etc., and those skilled in the art can flexibly adjust the elastic device according to the needs, without being limited thereto.
In this embodiment, the second elastic member 42 and the third elastic member 43 are both elastic pieces, and the elastic pieces are V-shaped; the rear end of the elastic sheet is fixed on the frame 10, and the front end of the elastic sheet can be arranged on the frame 10 in a back-and-forth moving way. Thus, in the process of inserting the filter element 20 into the mounting groove forward, the second elastic piece 42 and the third elastic piece 43 do not obstruct the movement of the filter element 20, and along with the insertion of the filter element 20, the elastic piece is extruded, and the front end of the elastic piece can move forward to compress the elastic piece to generate elastic force.
In this embodiment, the front end of the elastic sheet is provided with a pin 44, and the frame 10 is provided with a first waist hole 14 matched with the pin 44; the pin 44 is inserted into the first waist hole 14 and can move back and forth along the first waist hole 14, so that the front end of the elastic sheet can move back and forth and is arranged on the frame 10. So set up, simple structure, convenient processing and manufacturing. In other embodiments, the front end of the elastic sheet may be slidably inserted on the frame 10 through a sliding slot or the like to move back and forth relative to the frame 10, or the front end of the elastic sheet may be directly slidably abutted against the frame 10, but is not limited thereto. In other embodiments, the second elastic member 42 may also be a spring pad, a spring, or other common elastic structures, but is not limited thereto.
The first elastic members 41 are three in number and are uniformly disposed on the front inner wall of the front recess 11 in the left-right direction. So, can guarantee that the filter core 20 atress is even, prevent that the dislocation of deflecting from appearing in filter core 20 to can improve the size of the elastic force of first elastic component 41 to filter core 20 production, provide better shock-absorbing capacity. In this embodiment, the first elastic member 41 is a conical spring, which is simple in structure, long in service life and convenient to manufacture and assemble, in other embodiments, the first elastic member 41 may also be an elastic sheet, an elastic pad or other common elastic structures, the number of the first elastic members 41 may also be one, two, four or the like, the intervals between the first elastic members 41 may also be unequal, and those skilled in the art may flexibly select and adjust the first elastic members as needed.
In this embodiment, the left inner wall of the left groove 12 and the right inner wall of the right groove 13 are provided with guide blocks 45, and the rear portion of the guide block 45 is provided with a guide surface inclined outward from front to rear. So, at the in-process that filter core 20 inserted the mounting groove, the guide surface can lead filter core 20 to the position placed in the middle, helps guaranteeing the degree of accuracy of filter core 20 mounted position, facilitates the use. In other embodiments, the guide block 45 may be provided only in the left or right groove 12 or 13, or the guide block 45 may not be provided, and the second elastic member 42 may be used to guide the filter cartridge 20.
Referring to fig. 1, 2, 5 and 6, in the present embodiment, the locking device includes a striking lock 31 provided at the rear end of the filter cartridge 20 and a locking hole 32 provided on the frame 10, and a locking tongue 311 of the striking lock 31 is inserted into the locking hole 32. In the process of installing the filter element 20, the lock tongue 311 of the impact lock 31 can automatically retract after impacting the edge of the frame 10, and can automatically extend to be inserted into the lock hole 32 after reaching the position of the lock hole 32, so that the locking can be automatically completed, a user is not required to operate the locking device, the installation operation of the filter element 20 is simplified, the use is convenient, when the filter element 20 needs to be disassembled, the lock tongue 311 of the impact lock 31 is also required to be pushed out, then the first elastic piece 41 can automatically push the filter element 20 to move backwards, the user can take out the filter element 20 again, the disassembly and assembly of the filter element 20 can be conveniently and quickly completed in a limited operation space at the top of the railway vehicle, the operation and the use are convenient, the impact lock 31 is not easy to loosen when being vibrated, and the filter element 20 can be effectively prevented from being loosened. In this embodiment, the striking locks 31 are disposed on both the left side and the right side of the filter element 20, so as to ensure uniform stress on the filter element 20 and prevent the filter element 20 from deflecting. The striking lock 31 has a wide application range, the latch bolt 311 is usually elastically arranged on the lock body 313 by using the return spring 312, the latch bolt 311 is in an oblique angle shape, the oblique surface of the latch bolt 311 can push the latch bolt 311 to compress the return spring 312 so as to retract into the lock body 313 when colliding with the frame 10, and the return spring 312 can push the latch bolt 311 to extend out when the latch bolt 311 reaches the position of the lock hole 32. In other embodiments, the locking device may also adopt other common locking structures such as a screw, a buckle, a bolt, and the like, but is not limited thereto.
Referring to fig. 7, in this embodiment, the filter includes an anti-slip device for limiting the filter element 20 from moving out of the installation slot. Therefore, the filter element 20 can play a role of secondary safety, and further can be prevented from being loosened and falling off.
In this embodiment, the anti-dropping device includes at least one spring pin 50, the frame 10 is provided with a second waist hole 15, the filter element 20 is provided with a limiting hole 21 corresponding to the second waist hole 15, and the spring pin 50 is inserted into the second waist hole 15 and the limiting hole 21 at the same time. The second waist hole 15 can provide certain movement allowance, so that the situation that corresponding hole positions on the filter element 20 and the frame 10 cannot correspond to each other due to the conditions of machining errors and the like is avoided, and the use is convenient. In this embodiment, the spring pin 50 is provided on the right side of the filter element 20, and in other embodiments, the spring pin 50 may be provided at other positions such as both sides or the front end of the filter element 20. The spring pin 50 is widely applied, the marble 51 at the bottom of the spring pin can abut against the inner wall of the filter element 20 to prevent the spring pin 50 from loosening, and the snap button 52 pressing the spring pin 50 can enable the marble 51 to retract, so that the spring pin 50 can be pulled out, and the disassembly and assembly operation of the filter element 20 is effectively facilitated. In other embodiments, the anti-dropping device may also adopt other common limiting structures such as a bolt, a screw and the like, but is not limited thereto.
Referring to fig. 6, the filter cartridge 20 of the present embodiment includes a base frame 22 and two filter screens 23, the base frame 22 is provided with a connection screw, each filter screen 23 is provided with a connection hole 24 aligned with the connection screw, each filter screen 23 is vertically stacked and serially connected to the connection screw through the connection hole 24, and the connection screw is detachably and threadedly connected to a connection nut for pressing each filter screen 23 to the base frame 22. Therefore, the filter screens 23 can be conveniently detached for cleaning only by screwing out the connecting nuts, impurities among the filter screens 23 can be conveniently removed, the filter screens 23 can be conveniently replaced, and the use cost is reduced. The filter screens 23 may be of different structures, which contributes to an improvement in the filtering effect. In other embodiments, the filter screens 23 may be directly fixed on the base frame 22, or one, three, or other numbers of the filter screens 23 may be adopted, and those skilled in the art may flexibly adjust the number as required.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
The ventilation and dust filtration device of each embodiment of the invention is particularly suitable for track traffic traction equipment which adopts a forced air cooling mode to carry out air cooling and heat dissipation.
The front, rear, left, right, upper, lower, etc. directions in the present invention are merely for convenience of description and should not be construed as limiting the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A ventilation dust filter device is characterized in that: the filter element fixing device comprises a frame, a filter element and a locking device, wherein one end of the frame is provided with an opening through which the filter element can pass, the frame is provided with a mounting groove corresponding to the filter element, the filter element is inserted in the mounting groove, and an elastic device abutted against the filter element is arranged in the mounting groove; the locking device is used for locking the filter element in the mounting groove.
2. A ventilation dust filter apparatus as defined in claim 1, wherein: the frame is square with an opening at the rear end, and the mounting groove comprises a front groove with a backward opening arranged at the front part of the frame, a left groove with a rightward opening arranged at the left part of the frame and a right groove with a leftward opening arranged at the right part of the frame;
the elastic device comprises a first elastic piece arranged on the front inner wall of the front groove, a second elastic piece arranged on the left inner wall of the left groove and the right inner wall of the right groove, and a third elastic piece arranged on the upper inner wall and/or the lower inner wall of the left groove and the upper inner wall and/or the lower inner wall of the right groove;
the front part, the left part and the right part of the filter element are respectively inserted into the front groove, the left groove and the right groove, and the first elastic piece, the second elastic piece and the third elastic piece are all abutted to the filter element.
3. A ventilation dust filter apparatus as defined in claim 2, wherein: the number of the first elastic pieces is two or more and the first elastic pieces are dispersedly arranged on the front inner wall of the front groove along the left-right direction.
4. A ventilation dust filter apparatus as defined in claim 2, wherein: the second elastic piece and the third elastic piece are elastic pieces, the elastic pieces are V-shaped, the rear ends of the elastic pieces are fixed on the frame, and the front ends of the elastic pieces can be arranged on the frame in a back-and-forth moving mode.
5. A ventilation dust filter apparatus as defined in claim 4, wherein: the front end of the elastic sheet is provided with a pin, the frame is provided with a first waist hole matched with the pin, and the pin is inserted into the first waist hole and can move back and forth along the first waist hole so as to arrange the front end of the elastic sheet on the frame in a back and forth manner.
6. A ventilating dust filter according to any one of claims 2 to 5, wherein: the left inner wall of the left groove and/or the right inner wall of the right groove are/is provided with a guide block, and the rear part of the guide block is provided with a guide surface which inclines outwards from front to back.
7. A ventilating dust filter according to any one of claims 1 to 5, wherein: the locking device comprises an impact lock arranged at the rear end of the filter element and a lock hole arranged on the frame, and a lock tongue of the impact lock is inserted into the lock hole.
8. A ventilating dust filter according to any one of claims 1 to 5, wherein: still include the anticreep device, the anticreep device is used for the restriction the filter core certainly shift out in the mounting groove.
9. A ventilation dust filter apparatus as defined in claim 8, wherein: the anti-falling device comprises at least one spring pin, a second waist hole is formed in the frame, a limiting hole corresponding to the second waist hole is formed in the filter element, and the spring pin is inserted into the second waist hole and the limiting hole at the same time.
10. A ventilating dust filter according to any one of claims 1 to 5, wherein: the filter element comprises a base frame and two or more filter screens, wherein the base frame is provided with connecting screws, each filter screen is provided with connecting holes aligned with the connecting screws, the filter screens are vertically stacked and serially connected with the connecting screws through the connecting holes, and the connecting screws are detachably screwed with connecting nuts for pressing the filter screens on the base frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863316.9A CN112090185A (en) | 2020-08-25 | 2020-08-25 | Ventilation dust filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863316.9A CN112090185A (en) | 2020-08-25 | 2020-08-25 | Ventilation dust filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112090185A true CN112090185A (en) | 2020-12-18 |
Family
ID=73754310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010863316.9A Pending CN112090185A (en) | 2020-08-25 | 2020-08-25 | Ventilation dust filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112090185A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207094979U (en) * | 2017-08-01 | 2018-03-13 | 韩连政 | A kind of filter screen of air purifier installing mechanism |
| CN209173565U (en) * | 2018-11-07 | 2019-07-30 | 派欧尼尔环境净化工程(北京)有限公司 | A kind of air purifier being convenient for changing filter core |
| CN209963461U (en) * | 2019-07-20 | 2020-01-17 | 海门市正大电碳制品有限公司 | Novel motor carbon brush holder |
| CN210415153U (en) * | 2019-06-20 | 2020-04-28 | 宁波市同鑫成模具技术有限公司 | Mold equipment capable of effectively removing dust |
| US20210172409A1 (en) * | 2014-06-18 | 2021-06-10 | Mann+Hummel Gmbh | Filter and Filter Cartridge |
-
2020
- 2020-08-25 CN CN202010863316.9A patent/CN112090185A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210172409A1 (en) * | 2014-06-18 | 2021-06-10 | Mann+Hummel Gmbh | Filter and Filter Cartridge |
| CN207094979U (en) * | 2017-08-01 | 2018-03-13 | 韩连政 | A kind of filter screen of air purifier installing mechanism |
| CN209173565U (en) * | 2018-11-07 | 2019-07-30 | 派欧尼尔环境净化工程(北京)有限公司 | A kind of air purifier being convenient for changing filter core |
| CN210415153U (en) * | 2019-06-20 | 2020-04-28 | 宁波市同鑫成模具技术有限公司 | Mold equipment capable of effectively removing dust |
| CN209963461U (en) * | 2019-07-20 | 2020-01-17 | 海门市正大电碳制品有限公司 | Novel motor carbon brush holder |
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Application publication date: 20201218 |
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| RJ01 | Rejection of invention patent application after publication |