CN108167206A - A kind of centrifugal smoke exhaust fan - Google Patents
A kind of centrifugal smoke exhaust fan Download PDFInfo
- Publication number
- CN108167206A CN108167206A CN201711436136.7A CN201711436136A CN108167206A CN 108167206 A CN108167206 A CN 108167206A CN 201711436136 A CN201711436136 A CN 201711436136A CN 108167206 A CN108167206 A CN 108167206A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- housing
- belt pulley
- smoke exhaust
- filter plate
- 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.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of centrifugal smoke exhaust fans, including pedestal, the top of the pedestal, which is run through, housing, and buffer unit has been fixedly connected with it between the both sides of housing bottom and the both sides of base inner wall bottom, dust cover is fixedly connected on the right side of the case top, and the inside of dust cover is fixedly connected with the first motor, the output shaft of first motor is fixedly connected with the first belt pulley, and the present invention relates to fire-fighting equipment technical fields.The centrifugal smoke exhaust fan by electric machine external, improves the heat dissipation effect of motor; pass through the use of dust cover; it prevents the dust in air from entering in motor, improves the service life of motor, buffer protection can be carried out to device; prevent larger vibrations; the generation of noise is reduced, when device works, the first filter plate and the second filter plate can be shaken; it prevents filter plate from blocking at work, influences the normal use of device.
Description
Technical field
The present invention relates to fire-fighting equipment technical field, specially a kind of centrifugal smoke exhaust fan.
Background technology
Smoke exhaust fan is a kind of machinery that can drain the peculiar smell generated in interior, high temperature, soot gas rapidly, the machine
Device feature is that high temperature resistance is good, efficient, and the type of wind turbine has centrifugal blower, axial flow blower, centrifugal blower, axis stream wind,
According to the deployment scenarios of space size and enclosure select be suitble to small big machine, centrifugal blower be divided into before to multi-blade impeller and after
To impeller, forward direction impeller advantage selects the relatively low smaller diameter of rotating speed just can obtain larger air quantity total head, and forward direction impeller lacks
Point efficiency is relatively low, energy consumption is higher, is not easy cleaning and descaling, backward impeller advantage efficiency is higher, it is energy saving, convenient for cleaning and descaling, backward
Impeller shortcoming will obtain that rotating speed needed for equal air quantity and total head is higher to be relatively large in diameter.
Existing centrifugal smoke exhaust fan when handling pernicious gas, be easy to cause the blocking of filter plate,
Influence smoke discharging effect, reduce the practicability of device, and existing centrifugal smoke exhaust fan can be caused in work it is larger
Noise and larger vibrations reduce the service life of device.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of centrifugal smoke exhaust fan, solve it is existing from
Core type smoke exhaust fan when handling pernicious gas, be easy to cause the blocking of filter plate, influences smoke discharging effect, work
As when generate larger noise and larger vibrations, reduce service using life the problem of.
In order to achieve the above object, the present invention is achieved by the following technical programs：A kind of centrifugal fire-fighting row
Cigarette wind turbine, including pedestal, the top of the pedestal, which is run through, housing, and the both sides of the both sides of housing bottom and base inner wall bottom
Between be fixedly connected with buffer unit, dust cover is fixedly connected on the right side of the case top, and the inside of dust cover is consolidated
Surely the first motor is connected with, the output shaft of first motor is fixedly connected with the first belt pulley, and the surface of the first belt pulley
Second belt pulley is connected with by belt transmission, rotating bar, and rotating bar are fixedly connected at the axle center of second belt pulley
Surface through there is supporting rod, the both ends of the supporting rod at the top and bottom of inner walls respectively with being fixedly connected, described turn
The left end of lever is fixedly connected with impeller, and shaking device, the inner walls bottom are fixedly connected on the left of the case top
Fixing device has been fixedly connected on the left of portion.
Preferably, the buffer unit includes buffering frame, and the bottom of the buffering frame and the bottom of base inner wall are fixed and connected
It connects, and the both sides for buffering frame inner wall bottom slidably connect sliding shoe, are fixed between the opposite side of two sliding shoes
Connect the first spring, two sliding shoes mutually from side be rotatably connected to first connecting rod, the first connecting rod is far from sliding
One end of motion block runs through buffering frame and extends to the outside of buffering frame, and the first connecting rod is located at one end and the shell in buffering outer frame portion
The lower rotation connection of body.
Preferably, the shaking device includes outline border, is fixedly connected on the left of the bottom of the outline border and case top, and
The second motor is fixedly connected at the top of outline border, the output shaft of second motor is fixedly connected with third belt pulley, and third
The surface of belt pulley is connected with the 4th belt pulley by the second belt transmission, and the back side of the 4th belt pulley is fixedly connected with convex
Wheel, and be rotatablely connected at the axle center of cam by the right side of supporting rack and outline border inner wall, the bottom driving of the cam is connected with
Movable plate, and the both sides of movable plate bottom have been fixedly connected with mobile bar, the bottom ends of two mobile bars through outline border and
The outside of outline border is extended to, one end that two mobile bars are located at outside outline border is fixedly connected with the first U-type groove.
Preferably, the fixing device includes two second connecting rods, the bottom end of two second connecting rods and inner walls
Lower rotation connection, and the top of second connecting rod is rotatably connected to the second U-type groove, and two second connecting rods are located in housing
Second spring is fixedly connected between one end of wall bottom.
Preferably, activity is even respectively from left to right between the bottom of two first U-type grooves and the top of the second U-type groove
It is connected to the first filter plate and the second filter plate.
Preferably, the right side of the housing is through there is an inlet scoop, and the left side of housing is through having wind scoop, the housing bottom
Automatic telescopic link has been fixedly connected between the both sides in portion and the both sides of base inner wall bottom.
Preferably, the surface of first filter plate and the second filter plate runs through housing and extends to the surface of housing,
The surface that first filter plate and the second filter plate are located at hull outside has been respectively fixedly connected with the first turning handle and the second turning handle.
The present invention provides a kind of centrifugal smoke exhaust fans.Has following advantageous effect：
(1), centrifugal smoke exhaust fan, by being fixedly connected with dust cover, and dust cover on the right side of case top
Inside be fixedly connected with the first motor, the output shaft of first motor is fixedly connected with the first belt pulley, and the first belt
The surface of wheel is connected with the second belt pulley by belt transmission, and rotating bar is fixedly connected at the axle center of second belt pulley,
And the surface of rotating bar, through there is supporting rod, the both ends of the supporting rod are fixed respectively with the top and bottom of inner walls to be connected
It connects, the left end of the rotating bar is fixedly connected with impeller, by electric machine external, the heat dissipation effect of motor is improved, by dust-proof
The use of cover prevents the dust in air from entering in motor, improves the service life of motor.
(2), the centrifugal smoke exhaust fan is fixedly connected by the bottom for buffering frame with the bottom of base inner wall, and
The both sides of buffering frame inner wall bottom slidably connect sliding shoe, and the is fixedly connected between the opposite side of two sliding shoes
One spring, two sliding shoes mutually from side be rotatably connected to first connecting rod, the first connecting rod is far from sliding shoe
One end runs through buffering frame and extends to the outside of buffering frame, and the first connecting rod is located at the one end in buffering outer frame portion and the bottom of housing
Portion is rotatablely connected, and can be carried out buffer protection to device, be prevented larger vibrations, reduce the generation of noise.
(3), the centrifugal smoke exhaust fan, by being fixedly connected on the left of the bottom of outline border and case top, and it is outer
The second motor is fixedly connected at the top of frame, the output shaft of second motor is fixedly connected with third belt pulley, and third skin
The surface of belt wheel is connected with the 4th belt pulley by the second belt transmission, and the back side of the 4th belt pulley is fixedly connected with convex
Wheel, and be rotatablely connected at the axle center of cam by the right side of supporting rack and outline border inner wall, the bottom driving of the cam is connected with
Movable plate, and the both sides of movable plate bottom have been fixedly connected with mobile bar, the bottom ends of two mobile bars through outline border and
The outside of outline border is extended to, one end that two mobile bars are located at outside outline border is fixedly connected with the first U-type groove, in device work
When making, the first filter plate and the second filter plate can be shaken, prevent filter plate from blocking at work, influence device just
Often use.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structure diagram outside inventive shell；
Fig. 3 is the structure diagram of buffer unit of the present invention；
Fig. 4 is the structure diagram of shaking device of the present invention；
Fig. 5 is the structure diagram of fixing device of the present invention.
In figure：1 pedestal, 2 housings, 3 buffer units, 31 buffering frames, 32 sliding shoes, 33 first springs, 34 first connecting rods, 4
Dust cover, 5 first motors, 6 first belt pulleys, 7 second belt pulleys, 8 rotating bars, 9 supporting rods, 10 impellers, 11 shaking devices,
111 outline borders, 112 second motors, 113 third belt pulleys, 114 the 4th belt pulleys, 115 cams, 116 movable plates, 117 mobile bars,
12 first U-type grooves, 13 first filter plates, 14 second filter plates, 15 fixing devices, 151 second connecting rods, 152 second U-type grooves, 153
Second spring, 16 inlet scoops, 17 go out wind scoop, 18 automatic telescopic links, 19 first turning handles, 20 second turning handles.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
- 5 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of centrifugal smoke exhaust fan, including pedestal 1,
The top of pedestal 1, which is run through, has housing 2, and be fixedly connected between the both sides of 1 inner wall bottom of the both sides of 2 bottom of housing and pedestal
Buffer unit 3, the quantity of buffer unit 3 two, the right side at 2 top of housing are fixedly connected with dust cover 4, and dust cover 4 is interior
Portion is fixedly connected with the first motor 5, and the output shaft of the first motor 5 is fixedly connected with the first belt pulley 6, and the first belt pulley 6
Surface is connected with the second belt pulley 7 by belt transmission, rotating bar 8 is fixedly connected at the axle center of the second belt pulley 7, and rotate
Through there is supporting rod 9, the both ends of supporting rod 9 are fixedly connected respectively at the top and bottom of 2 inner wall of housing on the surface of bar 8, rotation
The left end of bar 8 is fixedly connected with impeller 10, and the left side at 2 top of housing is fixedly connected with shaking device 11,2 inner wall bottom of housing
Left side has been fixedly connected with fixing device 15, and the quantity of fixing device 15 is two, and buffer unit 3 includes buffering frame 31, buffering
The bottom of frame 31 is fixedly connected with the bottom of 1 inner wall of pedestal, and the both sides for buffering 31 inner wall bottom of frame slidably connect slip
Block 32, the bottom of buffering 31 inner wall of frame are provided with the first sliding rail being used cooperatively with sliding shoe 32, and two sliding shoes 32 are opposite
Be fixedly connected with the first spring 33 between side, two 32 phases of sliding shoe from side be rotatably connected to first connecting rod 34, first
The one end of connecting rod 34 far from sliding shoe 32 runs through buffering frame 31 and extends to the outside of buffering frame 31, and the both sides of buffering frame 31 open up
There is the opening being used cooperatively with first connecting rod 34, first connecting rod 34 is located at one end outside buffering frame 31 and the bottom turn of housing 2
Dynamic connection, shaking device 11 include outline border 111, and the bottom of outline border 111 is fixedly connected, and outline border 111 with the left side at 2 top of housing
Top be fixedly connected with the second motor 112, the output shaft of the second motor 112 is fixedly connected with third belt pulley 113, and third
The surface of belt pulley 113 is connected with the 4th belt pulley 114 by the second belt transmission, and the back side of the 4th belt pulley 114, which is fixed, to be connected
Cam 115 is connected to, and is rotatablely connected at the axle center of cam 115 by the right side of supporting rack and 111 inner wall of outline border, cam 115
Bottom driving is connected with movable plate 116, and the both sides of the both sides of movable plate 116 respectively with 111 inner wall of outline border are slidably connected, outline border
The both sides of 111 inner walls are provided with the second sliding rail being used cooperatively with movable plate 116, and the both sides of 116 bottom of movable plate are fixed
Mobile bar 117 is connected with, the bottom end of two mobile bars 117 runs through outline border 111 and extends to the outside of outline border 111, two shiftings
One end that lever 117 is located at outside outline border 111 is fixedly connected with the first U-type groove 12, and fixing device 15 includes two second connecting rods
151, the bottom end of two second connecting rods 151 is connect with the lower rotation of 2 inner wall of housing, the bottom of second connecting rod 151 and 2 inner wall of housing
Portion's rotation is simultaneous to be slidably connected, and the bottom of 2 inner wall of housing is provided with the third sliding rail being used cooperatively with second connecting rod 151, and the
The top of two connecting rods 151 is rotatably connected to the second U-type groove 152, and two second connecting rods 151 are located at one end of 2 inner wall bottom of housing
Between be fixedly connected with second spring 153, between the bottom of two the first U-type grooves 12 and the top of the second U-type groove 152 from a left side to
The right side has been movably connected with the first filter plate 13 and the second filter plate 14, and the right side of housing 2, which is run through, inlet scoop 16, and housing 2
Left side through there is wind scoop 17, be fixedly connected between the both sides of the 1 inner wall bottom of both sides and pedestal of 2 bottom of housing automatic
The surface of telescopic rod 18, the first filter plate 13 and the second filter plate 14 runs through housing 2 and extends to the surface of housing 2, and first
The surface that 13 and second filter plate 14 of filter plate is located at outside housing 2 has been respectively fixedly connected with the first turning handle 19 and the second turning handle
20, the second filter plate 14 is used to remove dust in air etc., and the first filter plate 13 is used to remove the odor molecules in air, just
It is cleaned in the first filter plate 13 of taking-up and the second filter plate 14.
During work, the work of the first motor 5 drives the first belt pulley 6 to rotate, and the first belt pulley 6 drives the second skin by belt
Belt wheel 7 rotates, and the second belt pulley 7 drives rotating bar 8 to rotate, and 8 impeller 10 of rotating bar rotates, and discharges fume, makes cigarette successively
By the second filter plate 14 and the first filter plate 13, outdoor is discharged to finally by wind scoop 17 is gone out, the second motor 112 works, and second
Motor 112 drives third belt pulley 113 to rotate, and third belt pulley 113 drives the 4th belt pulley 114 to rotate by the second belt,
4th belt pulley 114 is rotated with moving cam 115, and cam 115 drives movable plate 116 to move down, and movable plate 116 drives mobile bar
117 movements, mobile bar 117 drive the first filter plate 13 and the second filter plate 14 to move down by 12 branch of the first U-type groove, lead to
Crossing the elastic force of second spring 153 makes the first filter plate 13 and the second filter plate 14 move up and down, and prevents the first filter plate 13 and
Two filter plates 14 block at work, influence the normal use of device.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of centrifugal smoke exhaust fan, including pedestal (1), it is characterised in that：The top of the pedestal (1), which is run through, shell
Body (2), and buffer unit (3) has been fixedly connected between the both sides of the both sides of housing (2) bottom and pedestal (1) inner wall bottom,
Right side at the top of the housing (2) is fixedly connected with dust cover (4), and the inside of dust cover (4) is fixedly connected with the first motor
(5), the output shaft of first motor (5) is fixedly connected with the first belt pulley (6), and the surface of the first belt pulley (6) passes through
Belt transmission is connected with the second belt pulley (7), rotating bar (8) is fixedly connected at the axle center of second belt pulley (7), and turn
The surface of lever (8) is through there is a supporting rod (9), the both ends of the supporting rod (9) top and bottom with housing (2) inner wall respectively
It is fixedly connected, the left end of the rotating bar (8) is fixedly connected with impeller (10), and the left side at the top of the housing (2) is fixedly connected
There is shaking device (11), fixing device (15) has been fixedly connected on the left of housing (2) the inner wall bottom.
2. a kind of centrifugal smoke exhaust fan according to claim 1, it is characterised in that：Buffer unit (3) packet
Buffering frame (31) is included, the bottom of the buffering frame (31) is fixedly connected with the bottom of pedestal (1) inner wall, and buffers frame (31) inner wall
The both sides of bottom slidably connect sliding shoe (32), and two sliding shoes (32) are fixedly connected with first between opposite side
Spring (33), two sliding shoes (32) mutually from side be rotatably connected to first connecting rod (34), the first connecting rod
(34) one end far from sliding shoe (32) runs through buffering frame (31) and extends to the outside of buffering frame (31), the first connecting rod
(34) it is connect positioned at the external one end of buffering frame (31) with the lower rotation of housing (2).
3. a kind of centrifugal smoke exhaust fan according to claim 1, it is characterised in that：Shaking device (11) packet
Outline border (111) is included, the bottom of the outline border (111) is fixedly connected with the left side at the top of housing (2), and the top of outline border (111)
The second motor (112) is fixedly connected with, the output shaft of second motor (112) is fixedly connected with third belt pulley (113), and
The surface of third belt pulley (113) is connected with the 4th belt pulley (114), the 4th belt pulley by the second belt transmission
(114) the back side is fixedly connected with cam (115), and passes through supporting rack and outline border (111) inner wall at the axle center of cam (115)
Right side is rotatablely connected, and the bottom driving of the cam (115) is connected with movable plate (116), and the both sides of movable plate (116) bottom
Mobile bar (117) is fixedly connected with, the bottom end of two mobile bars (117) through outline border (111) and extends to outline border
(111) outside, two mobile bars (117) are fixedly connected with the first U-type groove positioned at the external one end of outline border (111)
(12)。
4. a kind of centrifugal smoke exhaust fan according to claim 1, it is characterised in that：Fixing device (15) packet
Two second connecting rods (151) are included, the bottom end of two second connecting rods (151) is connect with the lower rotation of housing (2) inner wall, and
The top of second connecting rod (151) is rotatably connected to the second U-type groove (152), and two second connecting rods (151) are positioned at housing (2)
Second spring (153) is fixedly connected between one end of inner wall bottom.
5. a kind of centrifugal smoke exhaust fan according to claim 3, it is characterised in that：Two first U-type grooves
(12) the first filter plate (13) and have been movably connected between bottom and the top of the second U-type groove (152) from left to right
Two filter plates (14).
6. a kind of centrifugal smoke exhaust fan according to claim 1, it is characterised in that：The right side of the housing (2)
Through there is an inlet scoop (16), and the left side of housing (2) is through having wind scoop (17), the both sides of housing (2) bottom and pedestal
(1) automatic telescopic link (18) has been fixedly connected between the both sides of inner wall bottom.
7. a kind of centrifugal smoke exhaust fan according to claim 5, it is characterised in that：First filter plate (13)
Through housing (2) and extend to the surfaces of housing (2) with the surface of the second filter plate (14), first filter plate (13) and
Second filter plate (14) has been respectively fixedly connected with the first turning handle (19) and the second turning handle (20) positioned at the external surface of housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711436136.7A CN108167206B (en) | 2017-12-26 | 2017-12-26 | Centrifugal fire-fighting smoke exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711436136.7A CN108167206B (en) | 2017-12-26 | 2017-12-26 | Centrifugal fire-fighting smoke exhaust fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108167206A true CN108167206A (en) | 2018-06-15 |
| CN108167206B CN108167206B (en) | 2020-12-15 |
Family
ID=62521275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711436136.7A Active CN108167206B (en) | 2017-12-26 | 2017-12-26 | Centrifugal fire-fighting smoke exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108167206B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825559A (en) * | 2018-06-26 | 2018-11-16 | 安徽悦达环保科技有限公司 | A kind of blower with filtration, purification function |
| CN110513315A (en) * | 2019-07-23 | 2019-11-29 | 湖北泉洁二次供水工程有限公司 | A kind of energy-saving type frequency conversion control cabinet |
| CN113236994A (en) * | 2021-04-25 | 2021-08-10 | 谢佳佳 | Self-suction lamp |
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| CN106402004A (en) * | 2016-12-08 | 2017-02-15 | 张敬进 | Damping noise reduction fan |
| CN206346934U (en) * | 2016-12-29 | 2017-07-21 | 台州四合风机有限公司 | A kind of dual-purpose centrifugal fan of cabinet type of fire-fighting ventilation |
| CN206530551U (en) * | 2017-01-13 | 2017-09-29 | 广州市羊城风机厂有限公司 | Centrifugal smoke exhaust fan |
| CN206785720U (en) * | 2017-06-07 | 2017-12-22 | 江苏恒康机电有限公司 | A kind of Environmental-protecting dust-removing explosion-proof centrifugal fan |
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| CN108825559A (en) * | 2018-06-26 | 2018-11-16 | 安徽悦达环保科技有限公司 | A kind of blower with filtration, purification function |
| CN110513315A (en) * | 2019-07-23 | 2019-11-29 | 湖北泉洁二次供水工程有限公司 | A kind of energy-saving type frequency conversion control cabinet |
| CN110513315B (en) * | 2019-07-23 | 2021-03-02 | 湖北泉洁二次供水工程有限公司 | Energy-saving variable frequency control cabinet |
| CN113236994A (en) * | 2021-04-25 | 2021-08-10 | 谢佳佳 | Self-suction lamp |
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Effective date of registration: 20201125 Address after: 312300 Shangpu Zhen Shang Pu Cun, Shangyu District, Shaoxing City, Zhejiang Province Applicant after: Zhejiang Longxin fan Co.,Ltd. Address before: 272000 Binhu North Road, Huan Town, Weishan County, Jining, Shandong Province, No. 3-1 Applicant before: Cai Lihai |
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