CN207162899U - A kind of wind direction regulating device - Google Patents

A kind of wind direction regulating device Download PDF

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Publication number
CN207162899U
CN207162899U CN201721000197.4U CN201721000197U CN207162899U CN 207162899 U CN207162899 U CN 207162899U CN 201721000197 U CN201721000197 U CN 201721000197U CN 207162899 U CN207162899 U CN 207162899U
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CN
China
Prior art keywords
blade
longitudinal
wind direction
regulating device
swing
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
CN201721000197.4U
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Chinese (zh)
Inventor
高计合
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.)
Weifang Jintailong Electronics Co Ltd
Original Assignee
Weifang Jintailong Electronics 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.)
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Publication date
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Priority to CN201721000197.4U priority Critical patent/CN207162899U/en
Application granted granted Critical
Publication of CN207162899U publication Critical patent/CN207162899U/en
Expired - Fee Related legal-status Critical Current
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Abstract

A kind of wind direction regulating device and the cabinet-type air conditioner with wind direction regulating device, it is related to air conditioner technical field, including installing frame, installing frame is divided into longitudinal oscillation area and horizontal swing area, longitudinal oscillation blade group is installed in longitudinal oscillation area, and the drive mechanism of driving longitudinal oscillation blade group is installed on installing frame, swings laterally and horizontal swing blade group is installed in area, the governor motion of regulation horizontal swing blade group is installed on installing frame, and blade stable oscillation part is installed in drive mechanism.The utility model, which realizes, conveniently to be removed and installed, and improves the swing stability of blow direction adjusting blades and the technique effect of convenient regulation wind direction.

Description

A kind of wind direction regulating device
Technical field
It the utility model is related to air conditioner technical field, and in particular to a kind of wind direction regulating device.
Background technology
At present, as the improvement of people's living standards, air-conditioning has become one of indispensable household electrical appliance of each family, Hot summer, air-conditioning can reduce indoor environment temperature, so as to provide comfortable environment to people.But especially sleeping Under working state, blow air-conditioning, easily cause the symptom of the flu such as cough, headache, runny nose, cause joint pain, dizziness, Or shoulder neck numbness etc. is bad anti-, because the limitation of design, the wind direction scope of most of air-conditioning systems is narrow, wind direction regulation leaf Piece is not easy to adjust angle, in more detail, has the disadvantages that:1. the wind direction regulation grid of traditional air conditioner is using plastics, profit It is molded with unitary mould, it is necessary to which integral replacing, is wasted serious after individual blade damage;2. the wind direction regulation lattice of traditional air conditioner Grid mould is sizing, and the scope of application is narrower, such as the air outlet of large-scale central air-conditioning is just very improper, and installation is not square Just;3rd, blow direction adjusting blades easily send noise with the growth of usage time, wind direction blade in swing process, influence to make With;4th, the grid on regulation wind direction is fixed using the frictional force progress angle of rotating shaft itself up and down, and same is larger for wind-force Air conditioner can cause grille blades angulation change so that change of the wind.
Utility model content
For in the prior art the defects of, the utility model provides a kind of wind direction regulating device, to realize convenient dismounting Installation, improve the swing stability of blow direction adjusting blades and the technique effect of convenient regulation wind direction.
To achieve the above object, the utility model provides following technical scheme:
A kind of wind direction regulating device, including installing frame, the installing frame is divided into longitudinal oscillation area and horizontal swing area, described Longitudinal oscillation blade group is installed in longitudinal oscillation area, and the driving longitudinal oscillation blade group is installed on the installing frame Drive mechanism, described swing laterally are provided with horizontal swing blade group, the regulation transverse direction are provided with the installing frame in area The governor motion of oscillating vane group, and blade stable oscillation part is installed in the drive mechanism.
As an improvement scheme, the installing frame includes rectangle frame, and the longitudinal oscillation blade group includes some vertical Rotating shaft, the both ends of some longitudinal blades are connected with to the both ends of parallel arrangement of longitudinal blade, and the longitudinal blade It is installed on using the axis of rotation on described one group of relative inwall of rectangle frame.
As an improvement scheme, the drive mechanism includes linkage board, motor and drive rod, and the motor passes through Mounting seat is installed on the outer wall of the rectangle frame, and the outer wall of output shaft through the rectangle frame of the motor connects the drive One end of lever, the other end of the drive rod is provided with lug boss, and the output eccentric shaft of the lug boss and the motor is set Put, offered on the linkage board and swing hole, the lug boss is slideably positioned in the sliding eye, and the linkage board is located at Between the wherein one end and the rectangle frame of some longitudinal blades, and it is also affixed on the end of some longitudinal blades There is swing lug boss, some swing lug boss common rotations are installed on the linkage board.
As an improvement scheme, it is described horizontal swing blade group include the parallel arrangement of cross blade of some transverse directions, And the both ends of the cross blade are connected with the rotating shaft, the both ends of some cross blades are pacified using the axis of rotation Loaded on another group of relative inwall of the rectangle frame.
As an improvement scheme, the governor motion includes gear, rack and knob, some cross blades The gear is wherein coaxially connected with the rotating shaft of one end respectively, the gear engages with the rack, and the rack is past Multiple motion is set, and the other end of one of them gear is connected with the knob.
As an improvement scheme, the outer wall of the rectangle frame is provided with sliding seat, the reciprocal constrained motion of rack In in the sliding seat.
As an improvement scheme, the blade stable oscillation part includes bearing, and the bearing is provided with several, And the inner ring of the bearing is installed on the swing lug boss, the outer ring of the bearing is installed on the linkage board.
As an improvement scheme, wherein one end of the rotating shaft is provided with card holding trough, the cross blade end wall or institute The end wall for stating longitudinal blade is installed in the card holding trough, and there is the side wall of card holding trough one end to be provided with fastening spiral shell for the rotating shaft The cross blade or the longitudinal blade are fixed in nail, the end of the trip bolt through the card holding trough.
Compared with prior art, the beneficial effects of the utility model are:
A kind of wind direction regulating device, including installing frame, installing frame are divided into longitudinal oscillation area and horizontal swing area, longitudinal oscillation Longitudinal oscillation blade group is installed in area, and the drive mechanism of driving longitudinal oscillation blade group is installed on installing frame, laterally pendulum Horizontal swing blade group is installed in dynamic area, the governor motion of regulation horizontal swing blade group is installed on installing frame, and is driven Blade stable oscillation part is installed, based on above structure, installing frame is divided into longitudinal oscillation area can with horizontal swing area in mechanism Easily to install longitudinal oscillation blade group and horizontal swing blade group, convenient to adjust wind direction, wherein longitudinal oscillation blade group can To realize Electronic control, convenient regulation, because horizontal swing blade group can be manually provided with governor motion by drive mechanism The quickly swing angle above and below regulation, because can just be adjusted during Electronic control swing angle, it is necessary to wait for a period of time Suitable angle, just in case miss this time, it is necessary to one hunting period of blade is being waited, so get up can be cumbersome for regulation And it is time-consuming, especially when horizontal swing blade, which need not be adjusted, needs to keep an angle, if Electronic control, Start can all reset every time, must need to readjust horizontal swing angle, thus it is cumbersome, wherein in the design, laterally Oscillating vane is manually adjusted, and can quickly adjust a swing angle, and coordinate the electronic realization of longitudinal oscillation blade Manual-automatic integrated, blade stable oscillation part is wherein installed in drive mechanism, it is ensured that the stability of blade oscillating, use It is convenient.
Installing frame includes rectangle frame, and longitudinal oscillation blade group includes the parallel arrangement of longitudinal blade in some longitudinal directions, and longitudinal direction The both ends of blade are connected with rotating shaft, the both ends of some longitudinal blades using axis of rotation be installed on one group of rectangle frame it is relative in On wall, drive mechanism includes linkage board, motor and drive rod, and motor is installed on the outer wall of rectangle frame by mounting seat, electricity The output shaft of machine is provided with lug boss, and lug boss through one end of the outer wall connection drive rod of rectangle frame, the other end of drive rod With the output shaft eccentric setting of motor, offer on linkage board and swing hole, lug boss is slideably positioned in sliding eye, and linkage board It is convex that swing is also connected between the wherein one end and rectangle frame of some longitudinal blades, and on the end of some longitudinal blades The portion of rising, some swing lug boss common rotations are installed on linkage board, based on above structure, the two of parallel arrangement of longitudinal blade End is installed in an opposed inner walls of rectangle frame by axis of rotation respectively, wherein single longitudinal blade conveniently removes and installs, And linkage board is installed using lug boss is swung, linkage board, which is provided with, swings hole, and wherein linkage board utilizes motor driven drive rod Rotate, drive rod is connected by lug boss with swinging hole, realizes the reciprocal drive linkage board movement in left and right, linkage board motion band Dynamic longitudinally adjust blade oscillating, so as to realize the angle of the longitudinal oscillation of regulation air-out.
Horizontal swing blade group includes the parallel arrangement of cross blade of some transverse directions, and the both ends of cross blade are connected with Rotating shaft, the both ends of some cross blades are installed on another group of relative inwall of rectangle frame using axis of rotation, governor motion bag Gear, rack and knob are included, is coaxially connected with gear in the rotating shaft of some cross blades wherein one end respectively, gear is and tooth Bar is engaged, and rack is moved back and forth and set, and the other end of one of gear is connected with knob, and the outer wall of rectangle frame is provided with Sliding seat, the reciprocal constrained motion of rack is in sliding seat, based on above structure, wherein one end connection of some lateral adjustments blades Gear, wherein single cross blade conveniently removes and installs, and gear is connected with rack jointly, and wherein sliding seat is in order to about Beam rack moves, and is easily installed rack, is swung wherein can entirely swing laterally blade group by mobile rack with Synchronization Control, One of gear is connected with knob through rectangle frame, can drive one of pinion rotation, Ran Houchi by turning knob Wheel belt carry-over bar moves, so as to realize that rack movement drives whole gear movements, so as to realize the whole horizontal swing blade of control The swing of group, realizes the regulation of horizontal wind direction, convenient use.
Blade stable oscillation part includes bearing, and bearing is provided with several, and the inner ring of bearing is installed on swing projection In portion, the outer ring of bearing is installed on linkage board, based on above structure, can be reduced provided with bearing and be swung lug boss and linkage board Between abrasion, prevent because the normal time uses, the friction sound brought, and during can improving blade oscillating provided with bearing Stability.
Wherein one end of rotating shaft is provided with card holding trough, and the end wall of cross blade end wall or longitudinal blade is installed in card holding trough, And there is the side wall of card holding trough one end to be provided with trip bolt for rotating shaft, the end of trip bolt passes through card holding trough fixed lateral blade Or longitudinal blade, based on above structure, the end wall of cross blade end wall or longitudinal blade can be installed on rotating shaft by card holding trough On, and fixed by trip bolt, cross blade or longitudinal blade detachable connection are realized, is convenient for changing cross blade Or longitudinal blade.
To sum up, the utility model, which realizes, conveniently removes and installs, and improves swing stability and the side of blow direction adjusting blades Just the technique effect of wind direction is adjusted, operational control is easy, is easy to extensive manufacture and installation, has a wide range of application.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art.In all of the figs, it is similar Element or part are typically identified by similar reference.In accompanying drawing, each element or part might not be according to the ratios of reality Draw.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model drive mechanism;
Fig. 3 is the structural representation of the utility model governor motion;
Fig. 4 is the enlarged diagram that the utility model swings hole;
Fig. 5 is the enlarged diagram of the utility model rotating shaft;
Fig. 6 is the structural representation of the utility model cabinet-type air conditioner;
In figure:1- rectangle frames;2- longitudinal blades;3- rotating shafts;4- linkage boards;5- swings lug boss;6- swings hole;7- is raised Portion;8- drive rods;9- motors;10- cross blades;11- gears;12- racks;13- knobs;14- clamps lug boss;15- cabinet-type air conditioners; 16- bearings;17- trip bolts;18- sliding seats.
Embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only For clearly illustrating the technical solution of the utility model, therefore example is only used as, and this practicality can not be limited with this New protection domain.
Embodiment one
As shown in Figures 1 to 5, a kind of wind direction regulating device, including installing frame, installing frame are divided into longitudinal oscillation area and transverse direction Area is swung, longitudinal oscillation blade group is installed in longitudinal oscillation area, and driving longitudinal oscillation blade group is installed on installing frame Drive mechanism, swing laterally and horizontal swing blade group is installed in area, regulation horizontal swing blade group is installed on installing frame Governor motion, and blade stable oscillation part is installed in drive mechanism.
Installing frame, which is divided into longitudinal oscillation area, can easily install longitudinal oscillation blade group with horizontal swing area and laterally put Movable vane piece group, convenient to adjust wind direction, wherein longitudinal oscillation blade group can realize Electronic control by drive mechanism, convenient to adjust Section, because horizontal swing blade group be provided with governor motion manually can quickly adjust above and below swing angle because electronic , it is necessary to wait for a period of time during control swing angle, suitable angle can be just adjusted, just in case missing this time, is just needed One hunting period of blade is being waited, so get up can be cumbersome and time-consuming for regulation, especially when horizontal swing blade is not required to Adjust need keep an angle when, if Electronic control, every time start can all reset, must need to adjust again Section horizontal swing angle, so cumbersome, wherein in the design, horizontal swing blade is manually adjusted, can be quick A swing angle is adjusted, and coordinates the electronic of longitudinal oscillation blade to realize manual-automatic integrated, is wherein provided with drive mechanism Blade stable oscillation part, it is ensured that the stability of blade oscillating, it is easy to use.
Installing frame includes rectangle frame 1, and longitudinal oscillation blade group includes the parallel arrangement of longitudinal blade 2 in some longitudinal directions, and vertical Rotating shaft 3 is connected with to the both ends of blade 2, and the both ends of some longitudinal blades 2 are rotatablely installed in 1 one groups of rectangle frame using rotating shaft 3 On relative inwall, drive mechanism includes linkage board 4, motor 9 and drive rod 8, and motor 9 is installed on rectangle frame by mounting seat On 1 outer wall, the output shaft of motor 9 is provided with through one end of the outer wall connection drive rod 8 of rectangle frame 1, the other end of drive rod 8 Lug boss 7, and the output shaft eccentric setting of lug boss 7 and motor 9, offer on linkage board 4 and swing hole 6, lug boss 7 is slided and set It is placed in sliding eye, and linkage board 4 is located between the wherein one end and rectangle frame 1 of some longitudinal blades 2, and some longitudinal leaves Also it is connected with the end of piece 2 and swings lug boss 5, some swing common rotations of lug boss 5 is installed on linkage board 4, are set parallel The both ends for the longitudinal blade 2 put are rotatablely installed in an opposed inner walls of rectangle frame 1 by rotating shaft 3 respectively, wherein single longitudinal direction Blade 2 conveniently removes and installs, and is provided with linkage board 4 using lug boss 5 is swung, and linkage board 4, which is provided with, swings hole 6, wherein Linkage board 4 drives drive rod 8 to rotate using motor 9, and drive rod 8 is connected by lug boss 7 with swinging hole 6, realizes left and right Reciprocal to drive linkage board 4 to move, the motion of linkage board 4 drives longitudinally adjust blade oscillating, so as to realize the longitudinal direction pendulum of regulation air-out Dynamic angle.
Horizontal swing blade group includes the parallel arrangement of cross blade 10 of some transverse directions, and the both ends of cross blade 10 are solid Rotating shaft 3 is connected to, the both ends of some cross blades 10 are rotatablely installed on another group of relative inwall of rectangle frame 1 using rotating shaft 3, adjusted Section mechanism includes gear 11, rack 12 and knob 13, distinguishes in the rotating shaft 3 of some cross blades 10 wherein one end coaxial affixed There is gear 11, gear 11 is engaged with rack 12, and rack 12 is moved back and forth and set, and the other end of one of gear 11 is consolidated Be connected to knob 13, the outer wall of rectangle frame 1 is provided with sliding seat 18,12 reciprocal constrained motion of rack in sliding seat 18, if wherein One end connection gear 11 of dry lateral adjustments blade, wherein single cross blade 10 conveniently removes and installs, and gear 11 is common With rack 12 is connected with, wherein sliding seat 18 is moved to constrain rack 12, is easily installed rack 12, wherein passing through mobile tooth Bar 12 can entirely swing laterally the swing of blade group with Synchronization Control, and one of gear 11 is connected with knob through rectangle frame 1 13, by turning knob 13 one of gear 11 can be driven to rotate, then gear 11 moves with carry-over bar 12, so as to real The existing movement of rack 12 drives whole gears 11 to move, and so as to realize the swing of the whole horizontal swing blade group of control, realizes horizontal stroke Regulation to wind direction, convenient use.
Wherein one end of rotating shaft 3 is provided with card holding trough, and the end wall of the end wall of cross blade 10 or longitudinal blade 2 is installed in card holding trough It is interior, and the side wall that rotating shaft 3 has card holding trough one end is provided with trip bolt 17, the end of trip bolt 17 is fixed through card holding trough The end wall of cross blade 10 or longitudinal blade 2, the end wall of cross blade 10 or longitudinal blade 2 can be installed on rotating shaft by card holding trough On 3, and fixed by trip bolt 17, realize cross blade 10 or the detachable connection of longitudinal blade 2, be convenient for changing horizontal stroke To blade 10 or longitudinal blade 2.
Blade stable oscillation part includes bearing 16, and bearing 16 is provided with several, and the inner ring of bearing 16 is installed on pendulum On dynamic lug boss 5, the outer ring of bearing 16 is installed on linkage board 4, can be reduced provided with bearing 16 and be swung lug boss 5 and linkage board Abrasion between 4, prevent because the normal time uses, the friction sound brought, and blade oscillating mistake can be improved provided with bearing 16 Stability in journey.
Embodiment two
As shown in figures 1 to 6, the present embodiment is the embodiment of cabinet-type air conditioner 15, is have as implemented the characteristics of cabinet-type air conditioner 15 A kind of wind direction regulating device described in example one, remaining structure is identical with the structure of traditional cabinet-type air conditioner 15, and therefore not to repeat here.
Cabinet-type air conditioner 15 is provided with air outlet, and wind direction regulating device is provided with air outlet, the rectangle frame 1 of wind direction regulating device Outer wall edge upper measurement, which is provided with, clamps lug boss 14, and is installed in using lug boss 14 is clamped on cabinet-type air conditioner 15, and rectangle frame 1 can utilize Clamp lug boss 14 and be installed on the use of the over-assemble of cabinet-type air conditioner 15, can also be arranged in the air-conditioning equipment of other classes, be used, side Convenient to operate.
Finally it should be noted that:Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System;Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand:It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type, it all should cover among claim of the present utility model and the scope of specification.

Claims (8)

  1. A kind of 1. wind direction regulating device, it is characterised in that:Including installing frame, the installing frame is divided into longitudinal oscillation area with laterally putting Area is moved, longitudinal oscillation blade group is installed in the longitudinal oscillation area, and the driving longitudinal direction pendulum is installed on the installing frame The drive mechanism of movable vane piece group, described swing laterally are provided with horizontal swing blade group, tune are provided with the installing frame in area The governor motion of the horizontal swing blade group is saved, and blade stable oscillation part is installed in the drive mechanism.
  2. A kind of 2. wind direction regulating device according to claim 1, it is characterised in that:The installing frame includes rectangle frame, institute Stating longitudinal oscillation blade group includes the parallel arrangement of longitudinal blade in some longitudinal directions, and the both ends of the longitudinal blade are connected with and turned Axle, the both ends of some longitudinal blades are installed on described one group of relative inwall of rectangle frame using the axis of rotation.
  3. A kind of 3. wind direction regulating device according to claim 2, it is characterised in that:The drive mechanism include linkage board, Motor and drive rod, the motor are installed on by mounting seat on the outer wall of the rectangle frame, and the output shaft of the motor is worn The outer wall for crossing the rectangle frame connects one end of the drive rod, and the other end of the drive rod is provided with lug boss, and described convex The output shaft eccentric setting of portion and the motor is played, is offered on the linkage board and swings hole, the lug boss is slideably positioned in In the sliding eye, and the linkage board is located between wherein one end and the rectangle frame of some longitudinal blades, and Swing lug boss is also connected with the end of some longitudinal blades, some swing lug boss common rotations are installed on institute State on linkage board.
  4. A kind of 4. wind direction regulating device according to claim 2, it is characterised in that:If the horizontal swing blade group includes Dry laterally parallel arrangement of cross blade, and the both ends of the cross blade are connected with the rotating shaft, some horizontal leaves The both ends of piece are installed on another group of relative inwall of the rectangle frame using the axis of rotation.
  5. A kind of 5. wind direction regulating device according to claim 4, it is characterised in that:The governor motion includes gear, tooth Bar and knob, some cross blades are wherein coaxially connected with the gear respectively in the rotating shaft of one end, the gear is equal Engaged with the rack, and the rack is moved back and forth and set, the other end of one of them gear is connected with the rotation Button.
  6. A kind of 6. wind direction regulating device according to claim 5, it is characterised in that:The outer wall of the rectangle frame, which is provided with, to be slided Dynamic seat, the reciprocal constrained motion of rack is in the sliding seat.
  7. A kind of 7. wind direction regulating device according to claim 3, it is characterised in that:The blade stable oscillation part includes Bearing, and the bearing is provided with several, and the inner ring of the bearing is installed on the swing lug boss, outside the bearing Circle is installed on the linkage board.
  8. A kind of 8. wind direction regulating device according to claim 4, it is characterised in that:Wherein one end of the rotating shaft is provided with card The end wall of tankage, the cross blade end wall or the longitudinal blade is installed in the card holding trough, and the rotating shaft has card The side wall of tankage one end is provided with trip bolt, and the cross blade is fixed in the end of the trip bolt through the card holding trough Or the longitudinal blade.
CN201721000197.4U 2017-08-11 2017-08-11 A kind of wind direction regulating device Expired - Fee Related CN207162899U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721000197.4U CN207162899U (en) 2017-08-11 2017-08-11 A kind of wind direction regulating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721000197.4U CN207162899U (en) 2017-08-11 2017-08-11 A kind of wind direction regulating device

Publications (1)

Publication Number Publication Date
CN207162899U true CN207162899U (en) 2018-03-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721000197.4U Expired - Fee Related CN207162899U (en) 2017-08-11 2017-08-11 A kind of wind direction regulating device

Country Status (1)

Country Link
CN (1) CN207162899U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109899872A (en) * 2018-12-26 2019-06-18 浙江琦远科技有限公司 A kind of energy-saving bathroom heater wind direction regulating mechanism
CN110260638A (en) * 2019-06-29 2019-09-20 江苏格新环保科技有限公司 A kind of drying unit and its exhaust heat recovering method for ecological ornamental plate installation
CN111256242A (en) * 2020-02-13 2020-06-09 庄伙金 Environment-friendly multistage air purification equipment
CN112985744A (en) * 2021-03-24 2021-06-18 中国科学院工程热物理研究所 Grid device for wind tunnel experiment and regulating and controlling method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109899872A (en) * 2018-12-26 2019-06-18 浙江琦远科技有限公司 A kind of energy-saving bathroom heater wind direction regulating mechanism
CN110260638A (en) * 2019-06-29 2019-09-20 江苏格新环保科技有限公司 A kind of drying unit and its exhaust heat recovering method for ecological ornamental plate installation
CN111256242A (en) * 2020-02-13 2020-06-09 庄伙金 Environment-friendly multistage air purification equipment
CN112985744A (en) * 2021-03-24 2021-06-18 中国科学院工程热物理研究所 Grid device for wind tunnel experiment and regulating and controlling method thereof

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Granted publication date: 20180330