CN208642147U - A kind of subway work Environmental-protective ventilating device - Google Patents

A kind of subway work Environmental-protective ventilating device Download PDF

Info

Publication number
CN208642147U
CN208642147U CN201820417722.0U CN201820417722U CN208642147U CN 208642147 U CN208642147 U CN 208642147U CN 201820417722 U CN201820417722 U CN 201820417722U CN 208642147 U CN208642147 U CN 208642147U
Authority
CN
China
Prior art keywords
air
subway work
treatment box
shell
pipe
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
Application number
CN201820417722.0U
Other languages
Chinese (zh)
Inventor
李晓
肖三民
闫志刚
刘宏宇
高志峰
殷刘伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway 12th Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Original Assignee
China Railway 12th Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Railway 12th Bureau Group Co Ltd, Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd filed Critical China Railway 12th Bureau Group Co Ltd
Priority to CN201820417722.0U priority Critical patent/CN208642147U/en
Application granted granted Critical
Publication of CN208642147U publication Critical patent/CN208642147U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The utility model relates to subway work Environmental-protective ventilating technical fields, more specifically, it is related to a kind of subway work Environmental-protective ventilating device, the device is handled by the air that cleaning device and filter device suck inlet duct, clean air is discharged by air-out apparatus, to realize ventilation cleaning during subway work, shaking device can effectively prevent dust blocking sieve plate or stick on the inside of dust treatment box, filter device can be conducive to high efficiency by telescopic rod and sleeve and cross air filtering, prevent the gaseous contamination outside air of discharge, it is not only convenient for cleaning and easy to disassemble or maintenance, present apparatus structure is simple, it is easy to use, be conducive to high efficiency and cross air filtering, prevent the gaseous contamination outside air of discharge, effectively improve raising working efficiency, save a large amount of resource, cost is also reduced simultaneously, just In popularization and use.

Description

A kind of subway work Environmental-protective ventilating device
Technical field
The utility model relates to subway work Environmental-protective ventilating technical fields, more specifically, are related to a kind of subway and apply Work Environmental-protective ventilating device.
Background technique
With the development of the city, subway increasingly facilitates the trip of people, generally closed since subway high-speed travels Design, therefore ventilation operation is particularly important in construction, especially in the construction process due to passing through in the environment in underground sealed Larger impact often is brought to construction environment, while biggish pollution also is brought to the Nature.
Existing subway work ventilation refrigerating plant does not have the function of efficient dustproof there is structure inconvenience adjustment, Often there is pernicious gas to bring biggish pollution to the Nature, while being also consumed by a large amount of resource, working efficiency is low, at high cost The problem of.
Patent CN106765813A discloses a kind of subway work ventilation refrigerating plant, the device by suction ventilator and Air-introduced machine realizes ventilation, realizes air cleaning by protective net and filter etc., this ventilation refrigerating plant can be realized subway Tunnel ventilation takes a breath and carries out refrigeration cool-down to higher air temperature, but apparatus structure is complicated, and maintenance difficulties are big, complex procedures, Purification efficiency is low.
Utility model content
In the presence of overcoming the shortcomings of the prior art, the utility model provides a kind of subway work Environmental-protective ventilating Device solves subway work ventilation refrigerating device structure complexity in the prior art, and dirt exclusion capabilities are poor, and working efficiency is low, at The problems such as this height is also easy to produce pernicious gas in practical process, consumes resource.
In order to solve the above-mentioned technical problem, the technology employed by the present utility model is
A kind of subway work Environmental-protective ventilating device, the device include shell, pedestal, fixed plate, dust treatment box, sieve Plate, inlet duct, cleaning device, sewage pipe, filter device, air-out apparatus, vibration device, Detection of Air Quality, control cabinet and Attaching plug, the shell are fixedly connected with pedestal, and fixed plate is provided in shell, and the dust treatment box is fixed with fixed plate It connects, is provided with sieve plate in dust treatment box, the inlet duct includes air inlet, air inlet pipe and the first air pump, the first gas Pump is fixedly connected with fixed plate, and air inlet pipe is mounted on the top of the first air pump, and air inlet pipe extends in hull outside one end and air inlet Mouth connection connection, the other end are connected to connection with dust treatment box, and the cleaning device includes cleaning pipe and water pump, and the water pump is solid Dingan County is mounted in the internal side wall of dust treatment box, and cleaning pipe is mounted on the top of water pump, and cleaning pipe one end extends in hull outside, The other end extends in inside dust treatment box, and the sewage pipe is connected to dust treatment box bottom, and the filter device includes case Connect at the top of shell, case lid, connecting rod, filter screen, handle, telescopic rod, sleeve and delivery pipe, the delivery pipe and dust treatment box Logical, the air-out apparatus includes escape pipe, the second air pump and gas outlet, and the escape pipe is connected to connection, the vibration with box shell Device includes motor cabinet, motor, rotating disc, connecting rod and arc convex, and the motor cabinet is fixedly connected with fixed plate, the arc Shape protrusion is fixed on dust treatment box, and the connecting rod and arc convex connect, and the air quality detector setting exists Hull outside, the control cabinet include cabinet, timer, controller and switching group, and the setting passes through conducting wire in case top It is connect with attaching plug.
The inlet duct is located at below sieve plate, and the cleaning device is located above sieve plate.
First air pump and the second air pump are electric air pump.
The cleaning pipe extends in one end inside dust treatment box and is provided with spraying nozzle, be sprayed with the particle water that gushes out with The showy dust granule of air is tightly embraced together, and dust granule weight is increased, so that sieve plate can not be penetrated, reaches the mesh of dedusting 's.
The telescopic rod is slidably connected with sleeve, so that filter screen is in contraction or tensional state, and filter screen is given to provide branch Support.
The filter screen includes primary filtration network, titanium filter screen, activated carbon adsorption net and HEPA refined filtration net.
The primary filtration network, titanium filter screen and activated carbon adsorption net are provided with through-hole, convenient for opposite with telescopic rod Movement.
The connecting rod and box shell are articulated and connected, and the HEPA refined filtration net and telescopic rod are articulated and connected, easy to disassemble and inspection It repairs.
The connecting rod top is provided with rubber ball body.
The controller includes single-chip microcontroller, voltage changing module, the first air pump drive module, the second air pump drive module, water pump Drive module and motor drive module, single-chip microcontroller include input terminal and output end.
Compared with prior art, it is had the beneficial effect that possessed by the utility model
The utility model provides a kind of subway work Environmental-protective ventilating device, passes through cleaning device and filter device pair The air of inlet duct sucking is handled, and clean air is discharged by air-out apparatus, to realize during subway work Ventilation cleaning, vibration device can effectively prevent dust blocking sieve plate or stick on the inside of dust treatment box, and filter device passes through Telescopic rod and sleeve can be conducive to high efficiency and cross air filtering, prevent the gaseous contamination outside air of discharge, be not only convenient for cleaning and And easy to disassemble or maintenance, present apparatus structure is simple, and it is easy to use, be conducive to high efficiency and cross air filtering, prevents the gas of discharge Outside air is polluted, raising working efficiency is effectively improved, saves a large amount of resource, while also reducing cost, be convenient for It promotes the use of.
Detailed description of the invention
Fig. 1 is a kind of subway work Environmental-protective ventilating device overall structure diagram provided by the utility model;
Fig. 2 is a kind of subway work Environmental-protective ventilating device filter device internal structure signal provided by the utility model Figure;
Fig. 3 is that a kind of subway work Environmental-protective ventilating device filter device provided by the utility model is illustrated when cleaning Figure;
Fig. 4 is a kind of subway work Environmental-protective ventilating device filter screen overall structure signal provided by the utility model Figure;
Fig. 5 is a kind of subway work Environmental-protective ventilating device vibration device schematic diagram provided by the utility model;
Fig. 6 is a kind of subway work Environmental-protective ventilating device control cabinet structural schematic diagram provided by the utility model;
Fig. 7 is a kind of subway work Environmental-protective ventilating device working principle structural schematic diagram provided by the utility model.
In figure: 1 being shell, 2 be pedestal, 3 be fixed plate, 4 be dust treatment box, 5 be sieve plate, 6 be inlet duct, 61 be Air inlet, 62 be air inlet pipe, 63 be the first air pump, 7 be cleaning device, 71 be cleaning pipe, 72 be water pump, 8 be sewage pipe, 9 be Filter device, 91 be box shell, 92 be case lid, 93 be connecting rod, 94 be filter screen, 941 be primary filtration network, 942 be titanium mistake Strainer, 943 be activated carbon adsorption net, 944 be HEPA refined filtration net, 95 be handle, 96 be telescopic rod, 97 be sleeve, 98 be conveying Pipe, 10 be air-out apparatus, 101 be escape pipe, 102 be the second air pump, 103 be gas outlet, 11 be vibration device, 111 be motor Seat, 112 be motor, 113 be rotating disc, 114 be connecting rod, 115 be arc convex, 12 be air quality detector, 13 be control Case processed, 131 be cabinet, 132 be timer, 133 be controller, 134 be switching group, 14 be attaching plug.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of subway work Environmental-protective ventilating device, the device include shell 1, pedestal 2, fixed plate 3, Dust treatment box 4, sieve plate 5, inlet duct 6, cleaning device 7, sewage pipe 8, filter device 9, air-out apparatus 10, vibration device 11, air quality detector 12, control cabinet 13 and attaching plug 14, the shell 1 are fixedly connected with pedestal 2, setting in shell 1 There is fixed plate 3, the dust treatment box 4 is fixedly connected with fixed plate 3, and sieve plate 5, the air inlet are provided in dust treatment box 4 Device 6 includes air inlet 61, air inlet pipe 62 and the first air pump 63, and the first air pump 63 is fixedly connected with fixed plate 3, air inlet pipe 62 Be mounted on the top of the first air pump 63, air inlet pipe 62 extends in 1 lateral ends of shell and is connected to connection with air inlet 61, the other end with The connection connection of dust treatment box 4, the cleaning device 7 includes cleaning pipe 71 and water pump 72, and the water pump 72 is fixedly mounted on ash The internal side wall of dirt treatment box 4, cleaning pipe 71 are mounted on the top of water pump 72, and 71 one end of cleaning pipe extends in 1 outside of shell, separately One end extends in inside dust treatment box 4, and the cleaning pipe 71 extends in 4 inside one end of dust treatment box and is provided with spraying nozzle The inlet duct 6 is located at 5 lower section of sieve plate, and the cleaning device 7 is located at 5 top of sieve plate, the sewage pipe 8 and dust treatment box The connection of 4 bottoms, the filter device 9 include box shell 91, case lid 92, connecting rod 93, filter screen 94, handle 95, telescopic rod 96, set Cylinder 97 and delivery pipe 98, the filter screen 94 include primary filtration network 941, titanium filter screen 942,943 and of activated carbon adsorption net Be connected at the top of HEPA refined filtration net 944, the delivery pipe 98 and dust treatment box 4, the air-out apparatus 10 include escape pipe 101, Second air pump 102 and gas outlet 103, the escape pipe 101 are connected to connection with box shell 91, and the vibration device 11 includes motor cabinet 111, motor 112, rotating disc 113, connecting rod 114 and arc convex 115, the arc convex 115 are fixed on dust treatment box 4 On, the connecting rod 114 is connected with arc convex 115, and the setting of air quality detector 12 is described on the outside of shell 1 Control cabinet 13 includes cabinet 131, timer 132, controller 133 and switching group 134, and the setting is at 1 top of shell, by leading Line is connect with attaching plug 14.
In the present embodiment, the first air pump 63 and the second air pump 102 are all made of electric air pump.
As in Figure 2-4, telescopic rod 96 is slidably connected with sleeve 97, and the connecting rod 93 is articulated and connected with box shell 91, institute It states HEPA refined filtration net 944 and telescopic rod 96 is articulated and connected, the primary filtration network 941, titanium filter screen 942 and activated carbon adsorption Net 943 is provided with through-hole, and when in use, in box shell 91, the second air pump 102 works so that box shell filter screen 94 filter device Negative pressure is formed in 91, air is entered in box shell 91 by delivery pipe 98, by primary filtration network 941, titanium filter screen 942, is lived Property charcoal adsorption net 943 and HEPA refined filtration net 944, generate pure air, pass through escape pipe 101 and enter air-out apparatus 10;Filtering dress When setting cleaning, handle 95 is pulled, filter screen 94 is moved to box shell 91, and telescopic rod 96 slides stretching in sleeve 97 to give Strainer 94 supports, and is filtered the cleaning of device 9.
As shown in figure 5, motor 112 is fixed on motor cabinet 111, motor 112 is equipped with rotating disc 113, rotating disc Connecting rod 114 is fixedly connected on 113,114 tops of connection are provided with rubber ball body, and the arc convex adjacent spacing is less than connecting rod Top sphere diameter, the arc convex are set as 4-12, and the connecting rod is set as 5-10.
Control cabinet 13 as shown in Figure 6 includes cabinet 131, timer 132, controller 133 and switching group 134, wherein timing Device 132, controller 133 or switching group 134 are connected by conducting wire;Under the controller 133 is fixed on inside cabinet 131 End, and 133 side of controller is provided with timer 182, wherein the other side of controller 133 is provided with switching group 134, by fixed When device 132 can be timed to the operation of the present apparatus.
As shown in fig. 7, the controller 133 includes single-chip microcontroller, voltage changing module, the first air pump drive module, the second air pump Drive module, water pump drive module and motor drive module, single-chip microcontroller include input terminal and output end, the Detection of Air Quality Instrument 12, timer 132 or switching group 134 are connected with the input terminal of single-chip microcontroller;The attaching plug 14 passes through voltage changing module and list Piece machine is connected;First air pump 63 is connected by the first air pump drive module with the output end of single-chip microcontroller;Second gas Pump 102 is connected by the second air pump drive module with the output end of single-chip microcontroller;The water pump 72 by water pump drive module with The output end of single-chip microcontroller is connected;The motor 112 is connected by motor drive module with the output end of single-chip microcontroller.
The utility model starts the first air pump 63 and the second air pump 102 first when in use, at this moment subway internal gas from Air inlet 61 enters, and then gas reaches inside dust treatment box 4 by air inlet pipe 62, is filtered dust by sieve plate 5, is It prevents dust blocking sieve plate 5 or sticks in 4 inside of dust treatment box, motor 112 can be started, sphere is made not stop to beat arc Protrusion 115, if desired cleans, first cleaning pipe 71 is connected with outer water tube, carries out cleaning screen plate 5 or dust after starting water pump 72 4 inside for the treatment of box, then sludge is discharged from sewage pipe 8, when gas reaches 9 inside of filter device, passes through primary filtration network 941, titanium filter screen 942, activated carbon adsorption net 943, HEPA refined filtration net 944, through row filtering, sterilization or disinfection, if desired clearly When washing, case lid 92 is opened, handle 95 is caught, by the cooperation of telescopic rod 96 and sleeve 97 by primary filtration network 941, titanium is filtered Net 942, activated carbon adsorption net 943 and the pull-out of HEPA refined filtration net 944 are rinsed, and then gas passes through air accumulator 101, from outlet Mouth 103 is discharged, if desired timing, and timer 132 gives progress the first air pump of timing controlled 63, the second air pump 102 by single-chip microcontroller With 112 current switching of motor, be conducive to save a large amount of resource, if air quality detector 12 detects subway inner air When preferable, the first air pump 63, water pump 72, the power of the second air pump 102 or motor 112, to save are reduced by single-chip microcontroller A large amount of resource.
Only the preferred embodiment of the utility model is explained in detail above, but the utility model be not limited to it is above-mentioned Embodiment can also not depart from the utility model aims within the knowledge of a person skilled in the art Under the premise of various changes can be made, various change should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of subway work Environmental-protective ventilating device, it is characterised in that: the device includes shell (1), pedestal (2), fixes Plate (3), sieve plate (5), inlet duct (6), cleaning device (7), sewage pipe (8), filter device (9), goes out dust treatment box (4) Device of air (10), vibration device (11), air quality detector (12), control cabinet (13) and attaching plug (14), the shell (1) it is fixedly connected with pedestal (2), is provided with fixed plate (3) in shell (1), the dust treatment box (4) and fixed plate (3) are solid Fixed connection, dust treatment box (4) is interior to be provided with sieve plate (5), and the inlet duct (6) includes air inlet (61), air inlet pipe (62) With the first air pump (63), the first air pump (63) is fixedly connected with fixed plate (3), and air inlet pipe (62) is mounted on the first air pump (63) Top, air inlet pipe (62) extend in shell (1) lateral ends and are connected to connection, the other end and dust treatment box with air inlet (61) (4) connection connection, the cleaning device (7) includes cleaning pipe (71) and water pump (72), and the water pump (72) is fixedly mounted on ash The internal side wall of dirt treatment box (4), cleaning pipe (71) are mounted on the top of water pump (72), and cleaning pipe one end extends in shell (1) Outside, the other end extend in dust treatment box (4) inside, and the sewage pipe (8) is connected to dust treatment box (4) bottom, described Filter device (9) includes box shell (91), case lid (92), connecting rod (93), filter screen (94), handle (95), telescopic rod (96), set It is connected at the top of cylinder (97) and delivery pipe (98), the delivery pipe (98) and dust treatment box (4), the air-out apparatus (10) includes Escape pipe (101), the second air pump (102) and gas outlet (103), the escape pipe (101) is connected to connection with box shell (91), described Vibration device (11) includes motor cabinet (111), motor (112), rotating disc (113), connecting rod (114) and arc convex (115), The motor cabinet (111) is fixedly connected with fixed plate (3), and the connecting rod (114) and arc convex (115) connect, described Arc convex (115) is fixed on dust treatment box (4), and air quality detector (12) setting is on the outside of shell (1), institute Stating control cabinet (13) includes cabinet (131), timer (132), controller (133) and switching group (134), and the setting is in shell (1) top, is connect by conducting wire with attaching plug (14).
2. a kind of subway work Environmental-protective ventilating device according to claim 1, it is characterised in that: the inlet duct (6) it is located at below sieve plate (5), the cleaning device (7) is located above sieve plate (5).
3. a kind of subway work Environmental-protective ventilating device according to claim 1, it is characterised in that: first air pump It (63) is electric air pump with the second air pump (102).
4. a kind of subway work Environmental-protective ventilating device according to claim 1, it is characterised in that: the cleaning pipe (71) it extends in the internal one end of dust treatment box (4) and is provided with spraying nozzle.
5. a kind of subway work Environmental-protective ventilating device according to claim 1, it is characterised in that: the telescopic rod (96) it is slidably connected with sleeve (97).
6. a kind of subway work Environmental-protective ventilating device according to claim 1, it is characterised in that: the filter screen It (94) include primary filtration network (941), titanium filter screen (942), activated carbon adsorption net (943) and HEPA refined filtration net (944), institute It states HEPA refined filtration net (944) and telescopic rod (96) is articulated and connected.
7. a kind of subway work Environmental-protective ventilating device according to claim 6, it is characterised in that: the primary filter Net (941), titanium filter screen (942) and activated carbon adsorption net (943) are provided with through-hole.
8. a kind of subway work Environmental-protective ventilating device according to claim 1, it is characterised in that: the connecting rod (93) it is articulated and connected with box shell (91).
9. a kind of subway work Environmental-protective ventilating device according to claim 1, it is characterised in that: the connecting rod (114) top is provided with rubber ball body.
10. a kind of subway work Environmental-protective ventilating device according to claim 1, it is characterised in that: the controller It (133) include single-chip microcontroller, voltage changing module, the first air pump drive module, the second air pump drive module, water pump drive module and motor Drive module, single-chip microcontroller include input terminal and output end.
CN201820417722.0U 2018-03-27 2018-03-27 A kind of subway work Environmental-protective ventilating device Expired - Fee Related CN208642147U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820417722.0U CN208642147U (en) 2018-03-27 2018-03-27 A kind of subway work Environmental-protective ventilating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820417722.0U CN208642147U (en) 2018-03-27 2018-03-27 A kind of subway work Environmental-protective ventilating device

Publications (1)

Publication Number Publication Date
CN208642147U true CN208642147U (en) 2019-03-26

Family

ID=65775058

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820417722.0U Expired - Fee Related CN208642147U (en) 2018-03-27 2018-03-27 A kind of subway work Environmental-protective ventilating device

Country Status (1)

Country Link
CN (1) CN208642147U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112237793A (en) * 2020-09-10 2021-01-19 湖南黄金洞大万矿业有限责任公司 Device and method for purifying and recycling waste gas in underground tunneling working area
CN112237823A (en) * 2020-09-10 2021-01-19 湖南黄金洞大万矿业有限责任公司 Waste gas purification treatment device for mine production
CN112282829A (en) * 2020-09-10 2021-01-29 湖南黄金洞大万矿业有限责任公司 Movable dust removal device for underground mining
CN112282833A (en) * 2020-09-10 2021-01-29 湖南黄金洞大万矿业有限责任公司 Dust removal and purification device for underground tunneling work area

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112237793A (en) * 2020-09-10 2021-01-19 湖南黄金洞大万矿业有限责任公司 Device and method for purifying and recycling waste gas in underground tunneling working area
CN112237823A (en) * 2020-09-10 2021-01-19 湖南黄金洞大万矿业有限责任公司 Waste gas purification treatment device for mine production
CN112282829A (en) * 2020-09-10 2021-01-29 湖南黄金洞大万矿业有限责任公司 Movable dust removal device for underground mining
CN112282833A (en) * 2020-09-10 2021-01-29 湖南黄金洞大万矿业有限责任公司 Dust removal and purification device for underground tunneling work area

Similar Documents

Publication Publication Date Title
CN208642147U (en) A kind of subway work Environmental-protective ventilating device
CN206215629U (en) Multifunctional intelligent integrated air duct cleaning robot
CN207893877U (en) A kind of Household Air Purifier having moistening function
CN208794689U (en) A kind of air filtration cleaning device of green building
CN208090822U (en) Air cleaning facility
CN107812433A (en) A kind of high-efficiency environment friendly cleaner
CN205007806U (en) High temperature high viscosity flue gas preliminary treatment dust collector
CN209086113U (en) A kind of negative pressure sieve analysis instrument for cement fineness
CN208382425U (en) One kind having electrostatic cleaning air purification device
CN208018337U (en) A kind of dust-extraction unit of Airshower chamber
CN2825077Y (en) High-vacuity pulse back-blowing bag filter
CN206176575U (en) Modular air purification system
CN211864407U (en) Energy-concerving and environment-protective dust collecting equipment
CN209475817U (en) One kind being convenient for clean bag filter
CN214715105U (en) Tungsten powder surface foreign matter adsorption equipment
CN208878170U (en) A kind of gas wash tower for realizing secondary gas dirt separation
CN108126430A (en) Without the low noise movable type tablet press machine deduster for needing to change filter core
CN221358977U (en) Sulbutylbetate cyclodextrin sodium spray drying dust removal tower
CN108180752A (en) A kind of root of three-nerved spicebush turbulent flow type energy-saving drying device
CN219879462U (en) Dust collector is used in building site construction
CN210145726U (en) Dust purification device of glass kiln
CN208275137U (en) A kind of automobile filter dust-extraction unit
CN213527896U (en) Air filter of oxygenerator
CN209107171U (en) A kind of hand-held cleaners
CN203235344U (en) Cyclone dust removal device

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: 20190326

CF01 Termination of patent right due to non-payment of annual fee