CN208626829U - A kind of efficiently replacement candle filter - Google Patents
A kind of efficiently replacement candle filter Download PDFInfo
- Publication number
- CN208626829U CN208626829U CN201820769374.3U CN201820769374U CN208626829U CN 208626829 U CN208626829 U CN 208626829U CN 201820769374 U CN201820769374 U CN 201820769374U CN 208626829 U CN208626829 U CN 208626829U
- Authority
- CN
- China
- Prior art keywords
- filter core
- sleeve
- upper box
- fixing shell
- hole
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a kind of efficiently replacement candle filters, including upper box, lower box and filter device, the filter device include filter core, sleeve and fixing shell；The fixing shell is located at outside upper box, and the sleeve is placed in inside upper box, and passes through filter core installing port and fix with fixing shell；The sleeve and fixing shell are coaxially disposed, and the filter core is located at sleeve and determines interior of shell, and the sleeve is equipped with through-hole, and the top box body sidewall opposite with the filter core installing port is equipped with emergency sealing structure；When opening end cap, the emergency sealing structure can prevent dust and gas from passing through through-hole；When end cap closure, dust and gas can pass through the through-hole.Efficient replacement candle filter described in the utility model can replace filter core under fan operation state, improve working efficiency, reduce the probability that blower breaks down.
Description
Technical field
The utility model relates to art of filters, more particularly to a kind of efficiently replacement candle filter.
Background technique
With the continuous development of industrial technology, environmental problem is gradually by everybody attention, and filter can will be in air
Bulky grain harmful substance remove and be discharged clean air, be good for your health, therefore by public extensive favor.
Filter core is the important component of filter, and filter core needs to take out cleaning or replacement, usual feelings after a period of use
It needs that filter core could be taken out after closing fan power under condition, otherwise dusty gas can be expelled directly out from filter outlet, be caused
Dust and gas enters blower, is easily damaged blower, and due to requiring to close fan power when replacing filter core every time, replacement is completed later again
Restarting, it is easy to appear failures during blower transient state operation, if filter core can be replaced smoothly in the operating condition, blower is just
It can be always maintained at steady state operation environment, reduce the probability that failure occurs, and working efficiency can be improved.
Utility model content
The purpose of this utility model be in view of the problems of the existing technology provide it is a kind of being capable of emergency sealing filter
Efficiently replacement candle filter.
The technical solution of the utility model is: a kind of efficiently replacement candle filter, including upper box, the upper box top
Portion is equipped with dust and gas import, and side is equipped with filter core installing port, and bottom is equipped with dust stratification drawer；Lower box is located at the upper box bottom,
Motor and blower are equipped in lower box, the net gas that the fan outlet connection is located at lower box bottom exports, fan inlet connection
Positioned at the fresh-air intake of nowel body sidewall；Filter device is located in upper box, including filter core, sleeve and fixing shell；It is described solid
Determine shell to be located at outside upper box, be fixed at filter core installing port；Fixing shell is equipped with gas outlet and service ports, the outlet
Mouth is connected to fresh-air intake, and the service ports are equipped with end cap, is fixed with rubber pad on the inside of the end cap, is set on the rubber pad
There is outlet passageway；The sleeve is placed in inside upper box, and is passed through filter core installing port and fixed with fixing shell；The sleeve and fixed
Shell coaxial arrangement, the filter core are located at sleeve and determine interior of shell, and filter core is divided by the fixing shell by convex ridge portion
Air inlet section and exhaust section, filter core end is against on rubber pad where exhaust section；The sleeve is equipped with through-hole, pacifies with the filter core
It fills the opposite top box body sidewall of mouth and is equipped with emergency sealing structure；When opening end cap, the emergency sealing structure can be prevented
Dust and gas passes through through-hole；When end cap closure, dust and gas can pass through the through-hole.
Further, the emergency sealing structure includes bottom plate, spring and cylinder blocking；The bottom plate and upper box are solid
Fixed, the cylinder blocks one end and is fixedly connected by spring with bottom plate, and the other end is connect with the end of filter core air inlet section, and cylinder is stifled
Diameter is slightly less than sleeve diameter beyond the Great Wall, and the cylinder blocking end connecting with spring is additionally provided with baffle ring, and the outer diameter of the baffle ring is greater than set
Cylinder internal diameter, the through-hole and the maximum distance between the sleeve ends of emergency sealing structure are D, the circle under free state
It is L that column blocking, which is located at the length in sleeve, and L is more than or equal to D；The length A of the rubber pad is more than or equal to L.Wherein,
" being slightly less than " refers to that the cylinder blocking is inserted into the sleeve, and cylinder blocking outside and the sleeve inside
Fitting.
Preferably, close to the circumferentially arranged column in described sleeve one end of the emergency sealing structure or multiple row through-hole.
Further, the cylinder blocking end connecting with filter core is equipped with groove, and the filter core end is arranged in groove
On, the accurate positionin when groove helps to be put into the filter core prevents the filter core axle center from deviating.
Further, screw rod is equipped in the spring, described screw rod one end is fixed with bottom plate, and institute can be enhanced in the screw rod
The intensity for stating spring prevents the spring from bending.
Further, the sleeve lining is additionally provided with support ring, and the support ring internal diameter is identical as filter core outer diameter, described
Through-hole is located on the outside of support ring, and the support ring and the fixing shell support the filter core jointly.
Preferably, the distance between the support ring and the sleeve ends of close emergency sealing structure M are more than or equal to
L。
Preferably, the upper box and lower box are welded by steel plate, the cabinet smooth in appearance welded using steel plate, outside
Shape is beautiful, light weight.
Preferably, the blower and motor bottom are all provided with organic block.
Preferably, the filter bottom is equipped with idler wheel, conveniently moves back and forth.
The beneficial effects of the utility model are:
(1) efficient replacement candle filter described in the utility model, the filter core end are equipped with emergency sealing structure, when
When opening the end cap cleaning filter core, the emergency sealing structure can block the through-hole on sleeve, avoid dusty gas through logical
Hole enters in filter core, without closing blower i.e. replaceable cartridge, improves working efficiency, while reducing the machine that blower breaks down
Rate.
(2) efficient replacement candle filter described in the utility model realizes the emergency sealing structure by spring
Mobile, structure is simple, easy to operate.
Detailed description of the invention
Fig. 1 is front view (the end cap closure of the specific embodiment of efficient replacement candle filter described in the utility model
State)；
Fig. 2 is front view (the end cap opening of the specific embodiment of efficient replacement candle filter described in the utility model
State).
In figure, 1, upper box, 2, lower box, 3, dust and gas import, 4, filter core installing port, 5, dust stratification drawer, 6, motor, 7, wind
Machine, 8, the outlet of net gas, 9, fresh-air intake, 10, filter device, 10-1, filter core, 10-11, air inlet section, 10-12, exhaust section, 10-
2, sleeve, 10-21, through-hole, 10-22, support ring, 10-3, fixing shell, 10-31, gas outlet, 10-32, service ports, 10-33,
End cap, 10-34, rubber pad, 10-35, outlet passageway, 10-36, convex ridge portion, 11, emergency sealing structure, 11-1, bottom plate, 11-2,
Spring, 11-3, cylinder blocking, 11-4, baffle ring, 11-5, groove, 11-6, screw rod, 12, base, 13, idler wheel.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.
As shown in Figure 1 and Figure 2, a kind of efficiently to replace candle filter, including upper box 1, dust and gas is equipped at the top of upper box 1
Import 3, side are equipped with filter core installing port 4, and bottom is equipped with dust stratification drawer 5.
Lower box 2 is located at 1 bottom of upper box, motor 6 and blower 7 is equipped in lower box 2, under the outlet of blower 7 connection is located at
The net gas outlet 8 of 2 bottom of cabinet, 7 import of blower connection are located at the fresh-air intake 9 of 2 side wall of lower box.
Filter device 10 is located in upper box 1, including filter core 10-1, sleeve 10-2 and fixing shell 10-3；Fixing shell
10-3 is located at outside upper box 1, is fixed at filter core installing port 4；Fixing shell 10-3 is equipped with gas outlet 10-31 and service ports
10-32, gas outlet 10-31 are connected to fresh-air intake 9, and service ports 10-32 is equipped with end cap 10-33, end cap 10-33 and filter core
10-1 coaxial arrangement, the inside end cap 10-33 are fixed with rubber pad 10-34, and rubber pad 10-34 is equipped with outlet passageway 10-35, uses
In the connection center filter core 10-1 and gas outlet 10-31；Sleeve 10-2 is placed in inside upper box 1, and across filter core installing port 4 and admittedly
Determine shell 10-3 to fix；Sleeve 10-2 and fixing shell 10-3 is coaxially disposed, and filter core 10-1 is located at sleeve 10-2 and fixing shell
Inside 10-3, filter core 10-1 is divided into air inlet section 10-11 and exhaust section 10-12 by convex ridge portion 10-36 by fixing shell 10-3,
The end filter core 10-1 is against on rubber pad 10-34 where exhaust section 10-12.
Sleeve 10-2 is equipped with through-hole 10-21, and upper box 1 side wall opposite with filter core installing port 4 is equipped with emergency sealing
Structure 11；When opening end cap 10-33, emergency sealing structure 11 can prevent dust and gas from passing through through-hole 10-21；As end cap 10-33
When closure, dust and gas can pass through through-hole 10-21.
Specific embodiment of the present utility model, under normal condition, end cap 10-33 is in close state, the end filter core 10-1
Portion is against on rubber pad 10-34, and through-hole 10-21 is in the conductive state, when work, opens motor 6, blower 7 is started to work, dust-laden
Gas enters upper box 1 from dust and gas import 3 under the swabbing action of blower 7, and dust and gas can reach filter core 10-1 with via through holes 10-21
Outer surface enters inside filter core 10-1 after filter core 10-1 filtering, is then delivered to gas outlet 10-31 through outlet passageway 10-35,
Outwardly finally by 7 row of blower.When needing replacing filter core 10-1, end cap 10-33 is opened, through-hole 10-21 is by emergency sealing
Structure 11 blocks, and dust and gas can not reach the surface filter core 10-1, to guarantee that replace filter core 10-1 does not have dust and gas leakage in the process.
Embodiment 1, it is a kind of efficiently to replace candle filter, including upper box 1, it is equipped with dust and gas import 3 at the top of upper box 1,
Side is equipped with filter core installing port 4, and bottom is equipped with dust stratification drawer 5.
Lower box 2 is located at 1 bottom of upper box, and motor 6 and blower 7 are equipped in lower box 2, and motor 6 and blower 7 are fixed
In on base 12, the outlet of blower 7 connection is located at the net gas outlet 8 of 2 bottom of lower box, and 7 import of blower connection is located at 2 side of lower box
The fresh-air intake 9 of wall, 2 bottom of lower box are equipped with idler wheel 13.
Filter device 10 is located in upper box 1, including filter core 10-1, sleeve 10-2 and fixing shell 10-3；Fixing shell
10-3 is located at outside upper box 1, is fixed at filter core installing port 4；Fixing shell 10-3 is equipped with gas outlet 10-31 and service ports
10-32, gas outlet 10-31 are connected to fresh-air intake 9, and service ports 10-32 is equipped with end cap 10-33, end cap 10-33 and filter core
10-1 coaxial arrangement, the inside end cap 10-33 are fixed with rubber pad 10-34, and rubber pad 10-34 is equipped with outlet passageway 10-35, uses
In the connection center filter core 10-1 and gas outlet 10-31；Sleeve 10-2 is placed in inside upper box 1, and across filter core installing port 4 and admittedly
Determine shell 10-3 to fix；Sleeve 10-2 and fixing shell 10-3 is coaxially disposed, and filter core 10-1 is located at sleeve 10-2 and fixing shell
Inside 10-3, filter core 10-1 is divided into air inlet section 10-11 and exhaust section 10-12 by convex ridge portion 10-36 by fixing shell 10-3,
The end filter core 10-1 is against on rubber pad 10-34 where exhaust section 10-12.
Upper box 1 side wall opposite with filter core installing port 4 is equipped with emergency sealing structure 11, close to the emergency sealing knot
The circumferentially arranged two column through-hole 10-21 in the one end sleeve 10-2 of structure 11；Emergency sealing structure 11 includes bottom plate 11-1, spring 11-2
11-3 is blocked with cylinder；Bottom plate 11-1 and upper box 1 are fixed, and it is solid by spring 11-2 and bottom plate 11-1 that cylinder blocks the one end 11-3
Fixed connection, the other end are connect with the end of filter core 10-1 air inlet section 10-11, and cylinder blocking 11-3 outer diameter is slightly less than in sleeve 10-2
Diameter, the cylinder blocking end 11-3 connecting with spring 11-2 are additionally provided with baffle ring 11-4, and the outer diameter of baffle ring 11-4 is greater than sleeve 10-2
Internal diameter, when opening end cap 10-33, it is excessive and can not block completely that baffle ring 11-4 can block 11-3 moving distance to avoid cylinder
Through-hole 10-21；Through-hole 10-21 and the maximum distance between the end sleeve 10-2 of emergency sealing structure 11 are D, free shape
It is L that cylinder blocking 11-3, which is located at the length in sleeve 10-2, under state, and L is greater than D, when guaranteeing that end cap 10-33 is opened, cylinder blocking
11-3 blocks through-hole 10-21 completely；The length A of rubber pad 10-34 is equal to L, and the length of rubber pad 10-34 closes end cap 10-
The shift length of cylinder blocking 11-3 when 33, when the length A of rubber pad 10-34 is more than or equal to L, cylinder blocks 11-3 energy
It is enough fully removed, through-hole 10-21 is fully on.
Usually using under state, emergency sealing structure 11 is in state shown in Fig. 1, and filter core 10-1 is rubber pad 10-34's
Cylinder blocking 11-3 is pressed under extruding, spring 11-2 is compacted, and cylinder blocks 11-3 and generates displacement, through-hole 10-21 conducting, dust and gas
The surface filter core 10-1 is reached through the gap between through-hole 10-21 or sleeve 10-2 and cylinder blocking 11-3 after into upper box 1,
Gas outlet 10-31 is flowed to through outlet passageway 10-35 after filter core 10-1 outflow；When needing replacing filter core 10-1, end cap is opened
10-33, rubber pad 10-34 disappear to the extruding force of filter core 10-1, and spring 11-2 resets, and cylinder blocks in the presence of a tensile force
11-3 is displaced to opposite direction, while filter core 10-1 being released, when spring 11-2 in a free state, at emergency sealing structure 11
The state shown in Fig. 2, through-hole 10-21 is blocked by cylinder blocking 11-3, while baffle ring 11-4 is contacted with sleeve 10-2, support ring
10-22 is contacted with the cylinder blocking end 11-3, plays multi-sealed effect.
In the present embodiment, cylinder blocking 11-3 can be made of rubber material, rubber material light weight, good airproof performance.
The cylinder blocking end 11-3 connecting with filter core 10-1 is equipped with groove 11-5, and the end filter core 10-1 is arranged in groove
On 11-5, it can be put into sleeve 10-2 rear-inclined to avoid filter core 10-1, while helping quickly to position filter core 10-1, convenient for peace
Dress.
Screw rod 11-6 is equipped in spring 11-2, the one end screw rod 11-6 is fixed with bottom plate 11-1, is conducive to improve spring 11-2
Intensity, when end cap 10-33 closure, spring 11-2 compression, cylinder blocking 11-3 moves closer to screw rod 11-6, conversely, cylinder is stifled
Plug 11-3 is gradually distance from screw rod 11-6.
Embodiment 2, on the basis of embodiment 1, sleeve 10-2 inner wall are additionally provided with support ring 10-22, and support ring 10-22
Internal diameter is identical as filter core 10-1 outer diameter, and support ring 10-22 and fixing shell 10-3 support filter core 10-1 jointly, pacifies filter core 10-1
Fill stronger, through-hole 10-21 is located on the outside of support ring 10-22, and " outside " refers to close to the side of emergency sealing structure 11,
This can hinder cylinder blocking 11-3 block through-hole 10-21 to avoid support ring 10-22, support ring 10-22 and close to promptly close
The distance between the end sleeve 10-2 of seal structure 11 M is equal to L, when opening end cap 10-33 at this time, support ring 10-22 and cylinder
11-3 contact is blocked, the effect of dual-seal is played.
In the utility model, to keep filter profile more beautiful, upper box 1 and lower box 2 can be welded by steel plate.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, the change that can be readily occurred in
Change or replace, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with described
Subject to scope of protection of the claims.
Claims (10)
1. a kind of efficiently replacement candle filter characterized by comprising
Upper box, the upper box top are equipped with dust and gas import, and side is equipped with filter core installing port, and bottom is equipped with dust stratification drawer；
Lower box is located at the upper box bottom, and motor and blower are equipped in lower box, and the fan outlet connection is located at nowel
The net gas of body bottom exports, and fan inlet connection is located at the fresh-air intake of lower box side wall；
Filter device is located in upper box, including filter core, sleeve and fixing shell；The fixing shell is located at outside upper box,
It is fixed at filter core installing port；Fixing shell is equipped with gas outlet and service ports, and the gas outlet is connected to fresh-air intake, described
Service ports are equipped with end cap, and rubber pad is fixed on the inside of the end cap, and the rubber pad is equipped with outlet passageway；The sleeve is set
Inside upper box, and passes through filter core installing port and fixed with fixing shell；The sleeve and fixing shell are coaxially disposed, the filter
Core is located inside sleeve and fixing shell, and filter core is divided into air inlet section and exhaust section by convex ridge portion by the fixing shell, row
Filter core end is against on rubber pad where gas section；
The sleeve is equipped with through-hole, and the top box body sidewall opposite with the filter core installing port is equipped with emergency sealing structure；When
When opening end cap, the emergency sealing structure can prevent dust and gas from passing through through-hole；When end cap closure, dust and gas can pass through described
Through-hole.
2. efficient replacement candle filter according to claim 1, it is characterised in that: the emergency sealing structure includes bottom
Plate, spring and cylinder blocking；The bottom plate is fixed with upper box, and the cylinder blocks one end and connects by the way that spring and bottom plate are fixed
It connects, the other end is connect with the end of filter core air inlet section, and cylinder blocking outer diameter is slightly less than sleeve diameter, and the cylinder connecting with spring is stifled
Plug end is additionally provided with baffle ring, and the outer diameter of the baffle ring is greater than sleeve diameter, the through-hole and the sleeve close to emergency sealing structure
Maximum distance between end is D, and it is L that the cylinder blocking, which is located at the length in sleeve, under free state, and L is more than or equal to
D；The length A of the rubber pad is more than or equal to L.
3. efficient replacement candle filter according to claim 2, it is characterised in that: close to the emergency sealing structure
Described sleeve one end circumferentially arranged one arranges or multiple row through-hole.
4. efficient replacement candle filter according to claim 2, it is characterised in that: the cylinder connecting with filter core is stifled
It fills in end and is equipped with groove, the filter core end is arranged on groove.
5. efficient replacement candle filter according to claim 4, it is characterised in that: be equipped with screw rod, institute in the spring
Screw rod one end is stated to fix with bottom plate.
6. efficient replacement candle filter according to claim 1-5, it is characterised in that: the sleeve lining is also
Equipped with support ring, and the support ring internal diameter is identical as filter core outer diameter, and the through-hole is located on the outside of support ring.
7. efficient replacement candle filter according to claim 6, it is characterised in that: the support ring with close to urgent close
The distance between sleeve ends of seal structure M is more than or equal to L.
8. efficient replacement candle filter according to claim 1-4, it is characterised in that: the upper box is under
Cabinet is welded by steel plate.
9. efficient replacement candle filter according to claim 8, it is characterised in that: the blower and motor bottom are all provided with
Organic block.
10. efficient replacement candle filter according to claim 9, it is characterised in that: the filter bottom is equipped with rolling
Wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820769374.3U CN208626829U (en) | 2018-05-23 | 2018-05-23 | A kind of efficiently replacement candle filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820769374.3U CN208626829U (en) | 2018-05-23 | 2018-05-23 | A kind of efficiently replacement candle filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208626829U true CN208626829U (en) | 2019-03-22 |
Family
ID=65732295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820769374.3U Expired - Fee Related CN208626829U (en) | 2018-05-23 | 2018-05-23 | A kind of efficiently replacement candle filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208626829U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407301A (en) * | 2019-08-30 | 2019-11-05 | 苏州水源电器有限公司 | A kind of the water filtration filter element cap structure and water filtration filter element of automatic shutter water inlet |
| CN112090179A (en) * | 2020-04-08 | 2020-12-18 | 成都易态科技有限公司 | Filter |
| CN114778415A (en) * | 2022-06-21 | 2022-07-22 | 江苏双辉环境科技有限公司 | High-speed filter testing arrangement in full-automatic multimedium |
-
2018
- 2018-05-23 CN CN201820769374.3U patent/CN208626829U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407301A (en) * | 2019-08-30 | 2019-11-05 | 苏州水源电器有限公司 | A kind of the water filtration filter element cap structure and water filtration filter element of automatic shutter water inlet |
| CN110407301B (en) * | 2019-08-30 | 2024-01-23 | 澳酷特环境科技(苏州)有限公司 | Water filtering filter element top cover structure capable of automatically opening and closing water inlet and water filtering filter element |
| CN112090179A (en) * | 2020-04-08 | 2020-12-18 | 成都易态科技有限公司 | Filter |
| CN114778415A (en) * | 2022-06-21 | 2022-07-22 | 江苏双辉环境科技有限公司 | High-speed filter testing arrangement in full-automatic multimedium |
| CN114778415B (en) * | 2022-06-21 | 2022-09-02 | 江苏双辉环境科技有限公司 | High-speed filter testing arrangement in full-automatic multimedium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208626829U (en) | A kind of efficiently replacement candle filter | |
| CN217511496U (en) | Whole-process leakage-free smoke collecting device | |
| CN205930155U (en) | Multifunctional vehicle -mounted air purifier | |
| CN210164522U (en) | Regenerating unit of automobile exhaust particulate matter trap | |
| CN207647583U (en) | A kind of energy-saving and environment-friendly automobile exhaust tube | |
| CN206315542U (en) | Chip removal filter | |
| CN201327094Y (en) | Close side-absorbing and upwards-discharging range hood | |
| CN203620428U (en) | Simple dust collection device | |
| CN201198777Y (en) | Main body apparatus for processing tail gas of motor vehicle | |
| CN210300861U (en) | Dust collection box and cleaning robot | |
| CN203861143U (en) | Dust collector with centrifugal cyclone filtration system | |
| CN202937846U (en) | Easy-to-disassemble and good-air-tightness pendent check valve for laboratory ventilation system | |
| CN208642197U (en) | A kind of novel environment friendly cyclone dust collector | |
| CN208564696U (en) | A kind of vehicle exhaust filtration treatment device | |
| CN209687812U (en) | A kind of blower intake and exhaust silencer | |
| CN207546137U (en) | A kind of activated carbon adsorption case | |
| CN210164521U (en) | Continuous type automobile exhaust particulate matter trap | |
| CN205382455U (en) | Dust catcher | |
| CN212719895U (en) | Integrated kitchen with air purification function | |
| CN2893489Y (en) | Air hood type kitchen ventilator | |
| CN201603144U (en) | Pi intelligent anion health machine | |
| CN209093037U (en) | A kind of activated carbon adsorption device being conveniently replaceable active carbon | |
| CN108538278A (en) | A kind of muffler being equipped with filtering dust-separation mechanism | |
| CN216537728U (en) | Gas drying cylinder | |
| CN216518766U (en) | Special dust exhausting fan for spraying workshop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 Termination date: 20190523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |