CN108488080A - A kind of negative-pressure air fan - Google Patents
A kind of negative-pressure air fan Download PDFInfo
- Publication number
- CN108488080A CN108488080A CN201810228153.XA CN201810228153A CN108488080A CN 108488080 A CN108488080 A CN 108488080A CN 201810228153 A CN201810228153 A CN 201810228153A CN 108488080 A CN108488080 A CN 108488080A
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- CN
- China
- Prior art keywords
- frame
- parts
- blinds
- combined
- pullswitch
- 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.)
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Classifications
-
- 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
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- 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
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Blinds (AREA)
Abstract
The invention discloses a kind of negative-pressure air fans, including a frame, it is internally provided with two cradling pieces in the frame, a shaft is combined between two cradling pieces, a fan assembly is combined on the shaft, in the motor for being internally provided with driving fan assembly rotation of the frame, it is both provided with recess portion at two side positions of the frame, the blinds of wind-guiding is provided on the inside of the frame, the blinds is arranged in parallel with polylith, the both ends of the blinds are both provided with rotatable lamella, vertical movable is provided with a power rail within the recess, it is drilled with a through-hole in the side of frame front end, it is combined with a pullswitch by the through-hole, the pullswitch connects the power rail；The present apparatus can control blinds opening manually, convenient to realize gravity-flow ventilation in the case of proper temperature.
Description
Technical field
The present invention relates to a kind of negative-pressure air fans.
Background technology
The region of air circulation is needed in farm, factory etc., needs that negative-pressure air fan is installed, can be incited somebody to action by negative-pressure air fan
Indoor air is emitted into outside, and then improves indoor air quality, avoids air muddy, increases air circulation, simultaneously
It also allows for reducing indoor temperature.
In actual use, negative-pressure air fan is in normally open, is conducive to air exchange, but in autumn and winter, it is naturally logical
Wind can also meet air exchange needs, therefore the power of negative-pressure air fan is smaller, can not blow blinds open completely, lead to air exchange
Effect is deteriorated.
Based on the above issues, it is desirable to provide one kind can control blinds opening manually, convenient the proper temperature the case where
The lower negative-pressure air fan for realizing gravity-flow ventilation.
Invention content
Technical problem to be solved by the invention is to provide one kind can controlling blinds opening manually, convenient suitable in temperature
The negative-pressure air fan of gravity-flow ventilation is realized in the case of preferably.
The present invention is achieved through the following technical solutions：
A kind of negative-pressure air fan, including a frame are arranged at the partition board that is internally provided with of the frame, the axle center of the partition board
Have an air holes by air-flow, in two cradling pieces that are internally provided with of the frame, two cradling pieces be divided into it is described every
The forward and backward side of plate, is combined with a shaft between two cradling pieces, which passes through the center location of air holes, described
A fan assembly is combined on shaft, in the motor for being internally provided with driving fan assembly rotation of the frame, in institute
It states and is both provided with recess portion at two side positions of frame, the blinds of wind-guiding is provided on the inside of the frame, the blinds is flat
Row is provided with polylith, and the both ends of the blinds are both provided with rotatable lamella, first is combined between the rotatable lamella and the frame
Axis pin, within the recess vertical movable be provided with a power rail, first axis pin pass through extend to after the frame it is described
In recess portion, that one end fits extended in recess portion have a connecting rod, and second is combined between the connecting rod and the power rail
Axis pin, during the power rail moves up, blinds described in polylith downwardly turn over movement, gradually close the frame,
During the power rail moves down, blinds described in polylith be flipped up movement, the frame is gradually opened, in frame
The side of front end is drilled with a through-hole, and a pullswitch is combined with by the through-hole, which connects the power rail, when
When the pullswitch is in relaxed state, blinds combined closing frame described in polylith, after pulling the pullswitch, power
Bar moves down under the action of pullswitch, and blinds described in polylith overturns opening at this time.
Preferably, the upper and lower end of the cradling piece is welded and fixed between the frame.
Preferably, it is combined with a protection network in the front end of the frame, the protection network is cell structure, passes through protection network
It can be to avoid injuring operating personnel.
Preferably, the front end of the pullswitch is a ring portion.
Preferably, the fan assembly includes reel, and annular is set to the connecting plate on the outside of the reel, the company
Fishplate bar is combined with flabellum, and the shaft passes through the reel, bearing, the motor are combined between the shaft and the reel
It is fixed on the interior bottom of frame.
Preferably, it is provided with a belt wheel at the outer ring of the reel, which is welded and fixed with the connecting plate, the electricity
The output end of machine is fixed with first pulley, and transmission belt is combined between the belt wheel and the first pulley.
Preferably, the frame goes to upper and lower the first plate disposed in parallel including two pieces, and is vertically connected to described in two pieces
The second plate between first plate, the recess portion be the second panel-bending after obtain.
Preferably, rivet is fixed between first plate and second plate.
Preferably, the through-hole includes macroperforation and aperture portion, and the aperture portion is connected with the macroperforation,
A block is fixed on the pullswitch, the width of the block is less than the diameter of the macroperforation, the width of the block
Degree pulls down the pullswitch, draws at this time more than the diameter of the aperture portion after block passes through the perforation
Wiretap is stuck in aperture portion, and the block limit is in the outside of frame, and the blinds is in the open state at this time, the knot
Structure is convenient for fixed blinds to open.
The partition board is plastic septum.
The material of the plastic septum is flame-proof ABS plastics.The flame-proof ABS plastics are prepared by the raw material of following weight parts
It forms：95-105 parts of ABS resin, 2-8 parts of plasticizer, 5-15 parts of alkali-free glass fibre, 3-9 parts of polyethylene wax, fire retardant 2-8
Part, 0.3-1.3 parts of vinyl three ('beta '-methoxy ethyoxyl) silane, 5-15 parts of boehmite, four (2,4- di-tert-butylphenols) -4,4-
0.3-0.9 parts of xenyl diphosphites.
Further, the material of the plastic septum is flame-proof ABS plastics.The flame-proof ABS plastics are by following weight parts
Raw material be prepared：95-105 parts of ABS resin, 2-8 parts of plasticizer, 5-15 parts of alkali-free glass fibre, 3-9 parts of polyethylene wax,
2-8 parts of fire retardant, 0.3-1.3 parts of vinyl three ('beta '-methoxy ethyoxyl) silane, modified 5-15 parts of boehmite, four (2,4- bis-
Tert-butyl phenol) 0.3-0.9 parts of -4,4- xenyl diphosphites.
The fire retardant is band fluorenyl phosphonium flame retardant and/or Phosphaphenanthrene fire retardant.Preferably, the fire retardant by
Band fluorenyl phosphonium flame retardant, Phosphaphenanthrene fire retardant are 1 in mass ratio：(0.2-0.7) is formed.
The plasticizer is tributyl citrate or phthalic acid two (2- ethyl hexyls) ester.
The preparation method of the modified boehmite is：By boehmite microwave power is 550-750W, microwave frequency is
Microwave activates 4-10min under 2400-2500MHz, obtains activation boehmite；Take 97-103g activation boehmite, 100-200g phosphorus
950-1050g water is added in acid, 0.1-0.5g hydroxy silicon oils, 5-15g calgons, 10-20g hexadecyltrimethylammonium chlorides
In with rotating speed be 200-500r/min stir 1-5h, stand 20-30h, with rotating speed be 5000-8000r/min centrifuge 15-25min,
Abandon supernatant will be deposited in temperature be 80-100 DEG C of dry 15-25h to obtain the final product.
The mode of bracing wire control, can be realized the opening of blinds, blinds is stirred without manually going, in blower fan work indoors
It is also adjusted under state；It operates safer.
The beneficial effects of the invention are as follows：For the present apparatus in routine use, rotating generated wind-force using fan assembly can
To blow blinds open, it is conducive to the exchange of indoor and outdoor air, it is more suitable in outside air temperature, when reducing temperature without huge discharge ventilation,
Pullswitch control blinds can be utilized to open completely, be easy to the exchange of inner air and outer air, wind turbine is in small wind-force working condition and is
Can, the structure of the present apparatus is relatively simple, and the flame retardant property of partition board used is good, high temperature resistant, thermal deformation dimensionally stable, intensity are high,
Cost is more cheap, is easy to be installed, and is suitble to promote the use of.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is the right view of the present invention；
Fig. 4 is the cooperation schematic diagram of blinds and frame；
Fig. 5 is the structural schematic diagram of through-hole；
Fig. 6 is the front view of fan assembly.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
In the description of the present invention, it is to be understood that, term " one end ", " other end ", " outside ", "upper", " inside ",
The orientation or positional relationship of the instructions such as "horizontal", " coaxial ", " center ", " end ", " length ", " outer end " is based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, in the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise
Clear specific restriction.
In the present invention unless specifically defined or limited otherwise, term " setting ", " socket ", " connection ", " running through ",
Terms such as " grafting " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly.For the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Oxygen index (OI) is tested：It is carried out according to standard GB/T2406.1-2008.
Resistance to low temperature is tested：Flame-proof ABS plastics are placed at 25 DEG C progress tensile strength after 48 hours, and (its value is denoted as
A1) test, it is subsequently placed at -20 DEG C after 48 hours and carries out tensile strength again (its value is denoted as A2) test, wherein tensile strength is pressed
The quasi- GB/T1040.1-2006 of sighting target is tested.Tensile strength reduced rate is calculated as follows.Tensile strength reduced rate (%)=
(A1-A2)/A1×100。
ABS resin is provided by TaiWan, China Qimei Industry Co., Ltd. in embodiment.The trade mark is PA-709.
Tributyl citrate is provided by Dongying City Wei Aien Chemical Co., Ltd.s in embodiment, model TBC.
Alkali-free glass fibre is provided by Mai Luoke Industrial Co., Ltd.s of Shenzhen in embodiment, and rank is A grades, glass fibre
Diameter：9-13 μm, chopped length：6mm.
Polyethylene wax is plasticized Co., Ltd by Dongguan City mountain one and provides in embodiment, model WL-95.
Phosphaphenanthrene fire retardant is with reference to application No. is 3 institutes of embodiment in 201410464271.2 Chinese patent in embodiment
Show prepared by method.
('beta '-methoxy ethyoxyl) silane of embodiment medium vinyl three is provided by Shandong Jia Ying Chemical Industry Science Co., Ltd, type
Number be KH-172.
(2,4- di-tert-butylphenol) -4,4- xenyl diphosphites four in embodiment, No. CAS：119345-01-6.
Boehmite is provided by Hangzhou Wanjing New Material Co., Ltd. in embodiment, model VK-JR14, D50 20-
40nm。
Phosphoric acid in embodiment, No. CAS：7664-38-2.
Calgon in embodiment, No. CAS：10124-56-8.
Hexadecyltrimethylammonium chloride in embodiment, No. CAS：112-02-7.
With fluorenyl phosphonium flame retardant with reference to application No. is embodiments 1 in 201110197672.2 Chinese patent in embodiment
It is prepared by shown method.
Hydroxy silicon oil is the hydroxyl silicon for the model 205 that Laiyang Sheng Bang organosilicons Science and Technology Ltd. provides in embodiment
Oil.
Embodiment 1
A kind of negative-pressure air fan as shown in Figures 1 to 6, including a frame 1 are internally provided with a partition board in the frame 1
2, partition board is plastic septum, thickness 2mm, an air holes 201 by air-flow is provided at the axle center of the partition board 2, described
Frame 1 is internally provided with two cradling pieces 3, and two cradling pieces 3 are divided into the forward and backward side of the partition board 2, in two branch
A shaft 4 is combined between hack lever 3, which passes through the center location of air holes 201, and a wind is combined on the shaft 4
Assembly 5 is fanned, in the motor 6 for being internally provided with the driving fan assembly 5 rotation of the frame 1, the two of the frame 1
It is both provided with recess portion 101 at side position, the inside of the frame 1 is provided with the blinds 7 of wind-guiding, the blinds 7 is parallel to be set
It is equipped with polylith, the both ends of the blinds 7 are both provided with rotatable lamella 701, are combined between the rotatable lamella 701 and the frame 1
First axis pin 711, vertical movable is provided with a power rail 8 in the recess portion 101, and first axis pin 711 passes through the frame
It is extended to after frame 1 in the recess portion 101, that one end fits extended in recess portion 101 have a connecting rod 18, the connecting rod 18
The second axis pin 712 is combined between the power rail 8, during the power rail 8 moves up, blinds 7 described in polylith
Downwardly turn over movement, gradually close the frame 1, during the power rail 8 moves down, blinds 7 described in polylith it is equal
It is flipped up movement, is gradually opened the frame 1, a through-hole 9 is drilled in the side of 1 front end of frame, is coordinated by the through-hole 9
There is a pullswitch 10, which connects the power rail 8, when the pullswitch 10 is in relaxed state, more
7 combined closing frame of blinds described in block, after pulling pullswitch 10, power rail 8 under the action of pullswitch 10 to
Lower movement, at this time blinds 7 described in polylith overturn opening.
The upper and lower end of a preferred embodiment in the present invention, the cradling piece 3 welds admittedly between the frame 1
It is fixed.
A preferred embodiment in the present invention is combined with a protection network 121, the protection in the front end of the frame 1
Net 121 is cell structure, can be to avoid injuring operating personnel by protection network.
The front end of a preferred embodiment in the present invention, the pullswitch 10 is a ring portion 11.
A preferred embodiment in the present invention, the fan assembly 5 include that reel 501 and annular are set to the axis
The connecting plate 502 in 501 outside of disk, the connecting plate 502 are combined with flabellum 503, and the shaft 4 passes through the reel 501,
Bearing (not shown) is combined between the shaft 4 and the reel 501, the motor 6 is fixed on the interior bottom of frame 1.
A preferred embodiment in the present invention is provided with a belt wheel 511 at the outer ring of the reel 501, the belt wheel 511
It is welded and fixed with the connecting plate 502, the output end of the motor 6 is fixed with first pulley 611, in the belt wheel 511 and institute
It states and is combined with transmission belt 12 between first pulley 611.
A preferred embodiment in the present invention, the frame 1 go to upper and lower the first plate disposed in parallel including two pieces
131, and vertical the second plate 141 being connected between two blocks of first plates 131, the recess portion 101 are the second plate 141
It is obtained after bending.
A preferred embodiment in the present invention, rivet is solid between first plate 131 and second plate 141
It is fixed.
A preferred embodiment in the present invention, the through-hole 9 includes macroperforation 911 and aperture portion 912, described small
Bore portion 912 is connected with the macroperforation 911, and a block 913 is fixed on the pullswitch 10, the block 913
Width is less than the diameter of the macroperforation 911, and the width of the block 913 is more than the diameter of the aperture portion 912, works as institute
Block is stated after the perforation, pulls down the pullswitch, pullswitch is stuck in aperture portion at this time, described piece
Body is limited in the outside of frame, and the blinds is in the open state at this time, which is convenient for fixed blinds to open.
Embodiment 2
A kind of negative-pressure air fan as shown in Figures 1 to 6, including a frame 1 are internally provided with a partition board in the frame 1
2, partition board is plastic septum, thickness 2mm, an air holes 201 by air-flow is provided at the axle center of the partition board 2, described
Frame 1 is internally provided with two cradling pieces 3, and two cradling pieces 3 are divided into the forward and backward side of the partition board 2, in two branch
A shaft 4 is combined between hack lever 3, which passes through the center location of air holes 201, and a wind is combined on the shaft 4
Assembly 5 is fanned, in the motor 6 for being internally provided with the driving fan assembly 5 rotation of the frame 1, the two of the frame 1
It is both provided with recess portion 101 at side position, the inside of the frame 1 is provided with the blinds 7 of wind-guiding, the blinds 7 is parallel to be set
It is equipped with polylith, the both ends of the blinds 7 are both provided with rotatable lamella 701, are combined between the rotatable lamella 701 and the frame 1
First axis pin 711, vertical movable is provided with a power rail 8 in the recess portion 101, and first axis pin 711 passes through the frame
It is extended to after frame 1 in the recess portion 101, that one end fits extended in recess portion 101 have a connecting rod 18, the connecting rod 18
The second axis pin 712 is combined between the power rail 8, during the power rail 8 moves up, blinds 7 described in polylith
Downwardly turn over movement, gradually close the frame 1, during the power rail 8 moves down, blinds 7 described in polylith it is equal
It is flipped up movement, is gradually opened the frame 1, a through-hole 9 is drilled in the side of 1 front end of frame, is matched by the through-hole 9
Conjunction has a pullswitch 10, which connects the power rail 8, when the pullswitch 10 is in relaxed state,
7 combined closing frame of blinds described in polylith, after pulling pullswitch 10, power rail 8 is under the action of pullswitch 10
It moves down, blinds 7 described in polylith overturns opening at this time.
The material of the plastic septum is flame-proof ABS plastics.By flame-proof ABS plastics, routinely technique processing can be prepared by moulding
Expect partition board.
The flame-proof ABS plastics are prepared by the raw material of following weight parts：100 parts of ABS resin, tributyl citrate 5
Part, 10 parts of alkali-free glass fibre, 6 parts of polyethylene wax, 6 parts of band fluorenyl phosphonium flame retardant, vinyl three ('beta '-methoxy ethyoxyl)
0.8 part of silane, 10 parts of boehmite, four 0.6 part of (2,4- di-tert-butylphenols) -4,4- xenyls diphosphites.
The production technology of above-mentioned flame-proof ABS plastics, includes the following steps：
Step 1：It is that 500r/min is stirred 10min that each raw material, which is added in mixing machine with rotating speed, obtains mixture；
Step 2：Mixture is put into double screw extruder hopper, the temperature setting of the double screw extruder is：One
Area's temperature is 215 DEG C, and two area's temperature are 225 DEG C, and three area's temperature are 225 DEG C, and four area's temperature are 225 DEG C, and five area's temperature are 235
DEG C, six area's temperature are 235 DEG C, and seven area's temperature are 230 DEG C, and eight area's temperature are 230 DEG C, and head temperature is 230 DEG C, and screw speed is
150 revs/min；Mixture melted by heat flows out, through blank in the case where the screw rod of plastics double screw extruder is pushed through poroid mouth mold
Machine earnestly at a diameter of 3mm, a height of 3mm cylindrical pellets to get flame-proof ABS plastics.Flame-proof ABS plastics performance test knot
Fruit：Tensile strength reduced rate is 2.32%, oxygen index (OI) 33.1%.
Embodiment 3
A kind of negative-pressure air fan as shown in Figures 1 to 6, including a frame 1 are internally provided with a partition board in the frame 1
2, partition board is plastic septum, thickness 2mm, an air holes 201 by air-flow is provided at the axle center of the partition board 2, described
Frame 1 is internally provided with two cradling pieces 3, and two cradling pieces 3 are divided into the forward and backward side of the partition board 2, in two branch
A shaft 4 is combined between hack lever 3, which passes through the center location of air holes 201, and a wind is combined on the shaft 4
Assembly 5 is fanned, in the motor 6 for being internally provided with the driving fan assembly 5 rotation of the frame 1, the two of the frame 1
It is both provided with recess portion 101 at side position, the inside of the frame 1 is provided with the blinds 7 of wind-guiding, the blinds 7 is parallel to be set
It is equipped with polylith, the both ends of the blinds 7 are both provided with rotatable lamella 701, are combined between the rotatable lamella 701 and the frame 1
First axis pin 711, vertical movable is provided with a power rail 8 in the recess portion 101, and first axis pin 711 passes through the frame
It is extended to after frame 1 in the recess portion 101, that one end fits extended in recess portion 101 have a connecting rod 18, the connecting rod 18
The second axis pin 712 is combined between the power rail 8, during the power rail 8 moves up, blinds 7 described in polylith
Downwardly turn over movement, gradually close the frame 1, during the power rail 8 moves down, blinds 7 described in polylith it is equal
It is flipped up movement, is gradually opened the frame 1, a through-hole 9 is drilled in the side of 1 front end of frame, is matched by the through-hole 9
Conjunction has a pullswitch 10, which connects the power rail 8, when the pullswitch 10 is in relaxed state,
7 combined closing frame of blinds described in polylith, after pulling pullswitch 10, power rail 8 is under the action of pullswitch 10
It moves down, blinds 7 described in polylith overturns opening at this time.
The material of the plastic septum is flame-proof ABS plastics.By flame-proof ABS plastics, routinely technique processing can be prepared by moulding
Expect partition board.
The flame-proof ABS plastics are prepared by the raw material of following weight parts：100 parts of ABS resin, tributyl citrate 5
Part, 10 parts of alkali-free glass fibre, 6 parts of polyethylene wax, 6 parts of band fluorenyl phosphonium flame retardant, vinyl three ('beta '-methoxy ethyoxyl)
0.8 part of silane, modified 10 parts of boehmite, four 0.6 part of (2,4- di-tert-butylphenols) -4,4- xenyls diphosphites.
The preparation method of the modified boehmite is：By boehmite microwave power is 650W, microwave frequency is
Microwave activates 7min under 2450MHz, obtains activation boehmite；Take 100g activation boehmite, 150g phosphoric acid, 0.2g hydroxy silicon oils,
10g calgons, 15g hexadecyltrimethylammonium chlorides are added in 1000g deionized waters and are stirred for 300r/min with rotating speed
2h stands 25h, is that 6000r/min centrifuges 20min with rotating speed, and it is that 90 DEG C of dry 20h change to obtain the final product to abandon supernatant and will be deposited in temperature
Property boehmite.
The production technology of above-mentioned flame-proof ABS plastics, includes the following steps：
Step 1：It is that 500r/min is stirred 10min that each raw material, which is added in mixing machine with rotating speed, obtains mixture；
Step 2：Mixture is put into double screw extruder hopper, the temperature setting of the double screw extruder is：One
Area's temperature is 215 DEG C, and two area's temperature are 225 DEG C, and three area's temperature are 225 DEG C, and four area's temperature are 225 DEG C, and five area's temperature are 235
DEG C, six area's temperature are 235 DEG C, and seven area's temperature are 230 DEG C, and eight area's temperature are 230 DEG C, and head temperature is 230 DEG C, and screw speed is
150 revs/min；Mixture melted by heat flows out, through blank in the case where the screw rod of plastics double screw extruder is pushed through poroid mouth mold
Machine earnestly at a diameter of 3mm, a height of 3mm cylindrical pellets to get flame-proof ABS plastics.Flame-proof ABS plastics performance test knot
Fruit：Tensile strength reduced rate is 1.98%, oxygen index (OI) 36.4%.
Embodiment 4
A kind of negative-pressure air fan as shown in Figures 1 to 6, including a frame 1 are internally provided with a partition board in the frame 1
2, partition board is plastic septum, thickness 2mm, an air holes 201 by air-flow is provided at the axle center of the partition board 2, described
Frame 1 is internally provided with two cradling pieces 3, and two cradling pieces 3 are divided into the forward and backward side of the partition board 2, in two branch
A shaft 4 is combined between hack lever 3, which passes through the center location of air holes 201, and a wind is combined on the shaft 4
Assembly 5 is fanned, in the motor 6 for being internally provided with the driving fan assembly 5 rotation of the frame 1, the two of the frame 1
It is both provided with recess portion 101 at side position, the inside of the frame 1 is provided with the blinds 7 of wind-guiding, the blinds 7 is parallel to be set
It is equipped with polylith, the both ends of the blinds 7 are both provided with rotatable lamella 701, are combined between the rotatable lamella 701 and the frame 1
First axis pin 711, vertical movable is provided with a power rail 8 in the recess portion 101, and first axis pin 711 passes through the frame
It is extended to after frame 1 in the recess portion 101, that one end fits extended in recess portion 101 have a connecting rod 18, the connecting rod 18
The second axis pin 712 is combined between the power rail 8, during the power rail 8 moves up, blinds 7 described in polylith
Downwardly turn over movement, gradually close the frame 1, during the power rail 8 moves down, blinds 7 described in polylith it is equal
It is flipped up movement, is gradually opened the frame 1, a through-hole 9 is drilled in the side of 1 front end of frame, is matched by the through-hole 9
Conjunction has a pullswitch 10, which connects the power rail 8, when the pullswitch 10 is in relaxed state,
7 combined closing frame of blinds described in polylith, after pulling pullswitch 10, power rail 8 is under the action of pullswitch 10
It moves down, blinds 7 described in polylith overturns opening at this time.
The material of the plastic septum is flame-proof ABS plastics.By flame-proof ABS plastics, routinely technique processing can be prepared by moulding
Expect partition board.
The flame-proof ABS plastics are prepared by the raw material of following weight parts：100 parts of ABS resin, tributyl citrate 5
Part, 10 parts of alkali-free glass fibre, 6 parts of polyethylene wax, 6 parts of band fluorenyl phosphonium flame retardant, vinyl three ('beta '-methoxy ethyoxyl)
0.8 part of silane, modified 10 parts of boehmite, four 0.6 part of (2,4- di-tert-butylphenols) -4,4- xenyls diphosphites.
The preparation method of the modified boehmite is：By boehmite microwave power is 650W, microwave frequency is
Microwave activates 7min under 2450MHz, obtains activation boehmite；Take 100g activation boehmite, 150g phosphoric acid, 10g hexa metaphosphoric acids
It is that 300r/min stirs 2h that sodium, 15g hexadecyltrimethylammonium chlorides, which are added in 1000g deionized waters with rotating speed, stands 25h,
It is that 6000r/min centrifuges 20min with rotating speed, it is 90 DEG C of dry 20h modified boehmites to obtain the final product to abandon supernatant and will be deposited in temperature.
The production technology of above-mentioned flame-proof ABS plastics, includes the following steps：
Step 1：It is that 500r/min is stirred 10min that each raw material, which is added in mixing machine with rotating speed, obtains mixture；
Step 2：Mixture is put into double screw extruder hopper, the temperature setting of the double screw extruder is：One
Area's temperature is 215 DEG C, and two area's temperature are 225 DEG C, and three area's temperature are 225 DEG C, and four area's temperature are 225 DEG C, and five area's temperature are 235
DEG C, six area's temperature are 235 DEG C, and seven area's temperature are 230 DEG C, and eight area's temperature are 230 DEG C, and head temperature is 230 DEG C, and screw speed is
150 revs/min；Mixture melted by heat flows out, through blank in the case where the screw rod of plastics double screw extruder is pushed through poroid mouth mold
Machine earnestly at a diameter of 3mm, a height of 3mm cylindrical pellets to get flame-proof ABS plastics.Flame-proof ABS plastics performance test knot
Fruit：Tensile strength reduced rate is 2.16%, oxygen index (OI) 35.7%.
Embodiment 5
A kind of negative-pressure air fan as shown in Figures 1 to 6, including a frame 1 are internally provided with a partition board in the frame 1
2, partition board is plastic septum, thickness 2mm, an air holes 201 by air-flow is provided at the axle center of the partition board 2, described
Frame 1 is internally provided with two cradling pieces 3, and two cradling pieces 3 are divided into the forward and backward side of the partition board 2, in two branch
A shaft 4 is combined between hack lever 3, which passes through the center location of air holes 201, and a wind is combined on the shaft 4
Assembly 5 is fanned, in the motor 6 for being internally provided with the driving fan assembly 5 rotation of the frame 1, the two of the frame 1
It is both provided with recess portion 101 at side position, the inside of the frame 1 is provided with the blinds 7 of wind-guiding, the blinds 7 is parallel to be set
It is equipped with polylith, the both ends of the blinds 7 are both provided with rotatable lamella 701, are combined between the rotatable lamella 701 and the frame 1
First axis pin 711, vertical movable is provided with a power rail 8 in the recess portion 101, and first axis pin 711 passes through the frame
It is extended to after frame 1 in the recess portion 101, that one end fits extended in recess portion 101 have a connecting rod 18, the connecting rod 18
The second axis pin 712 is combined between the power rail 8, during the power rail 8 moves up, blinds 7 described in polylith
Downwardly turn over movement, gradually close the frame 1, during the power rail 8 moves down, blinds 7 described in polylith it is equal
It is flipped up movement, is gradually opened the frame 1, a through-hole 9 is drilled in the side of 1 front end of frame, is matched by the through-hole 9
Conjunction has a pullswitch 10, which connects the power rail 8, when the pullswitch 10 is in relaxed state,
7 combined closing frame of blinds described in polylith, after pulling pullswitch 10, power rail 8 is under the action of pullswitch 10
It moves down, blinds 7 described in polylith overturns opening at this time.
The material of the plastic septum is flame-proof ABS plastics.By flame-proof ABS plastics, routinely technique processing can be prepared by moulding
Expect partition board.
The flame-proof ABS plastics are prepared by the raw material of following weight parts：100 parts of ABS resin, tributyl citrate 5
Part, 10 parts of alkali-free glass fibre, 6 parts of polyethylene wax, 6 parts of Phosphaphenanthrene fire retardant, vinyl three ('beta '-methoxy ethyoxyl) silicon
0.8 part of alkane, modified 10 parts of boehmite, four 0.6 part of (2,4- di-tert-butylphenols) -4,4- xenyls diphosphites.
The preparation method of the modified boehmite is：By boehmite microwave power is 650W, microwave frequency is
Microwave activates 7min under 2450MHz, obtains activation boehmite；Take 100g activation boehmite, 150g phosphoric acid, 0.2g hydroxy silicon oils,
10g calgons, 15g hexadecyltrimethylammonium chlorides are added in 1000g deionized waters and are stirred for 300r/min with rotating speed
2h stands 25h, is that 6000r/min centrifuges 20min with rotating speed, and it is that 90 DEG C of dry 20h change to obtain the final product to abandon supernatant and will be deposited in temperature
Property boehmite.
The production technology of above-mentioned flame-proof ABS plastics, includes the following steps：
Step 1：It is that 500r/min is stirred 10min that each raw material, which is added in mixing machine with rotating speed, obtains mixture；
Step 2：Mixture is put into double screw extruder hopper, the temperature setting of the double screw extruder is：One
Area's temperature is 215 DEG C, and two area's temperature are 225 DEG C, and three area's temperature are 225 DEG C, and four area's temperature are 225 DEG C, and five area's temperature are 235
DEG C, six area's temperature are 235 DEG C, and seven area's temperature are 230 DEG C, and eight area's temperature are 230 DEG C, and head temperature is 230 DEG C, and screw speed is
150 revs/min；Mixture melted by heat flows out, through blank in the case where the screw rod of plastics double screw extruder is pushed through poroid mouth mold
Machine earnestly at a diameter of 3mm, a height of 3mm cylindrical pellets to get flame-proof ABS plastics.Flame-proof ABS plastics performance test knot
Fruit：Tensile strength reduced rate is 2.03%, oxygen index (OI) 36.0%.
Embodiment 6
A kind of negative-pressure air fan as shown in Figures 1 to 6, including a frame 1 are internally provided with a partition board in the frame 1
2, partition board is plastic septum, thickness 2mm, an air holes 201 by air-flow is provided at the axle center of the partition board 2, described
Frame 1 is internally provided with two cradling pieces 3, and two cradling pieces 3 are divided into the forward and backward side of the partition board 2, in two branch
A shaft 4 is combined between hack lever 3, which passes through the center location of air holes 201, and a wind is combined on the shaft 4
Assembly 5 is fanned, in the motor 6 for being internally provided with the driving fan assembly 5 rotation of the frame 1, the two of the frame 1
It is both provided with recess portion 101 at side position, the inside of the frame 1 is provided with the blinds 7 of wind-guiding, the blinds 7 is parallel to be set
It is equipped with polylith, the both ends of the blinds 7 are both provided with rotatable lamella 701, are combined between the rotatable lamella 701 and the frame 1
First axis pin 711, vertical movable is provided with a power rail 8 in the recess portion 101, and first axis pin 711 passes through the frame
It is extended to after frame 1 in the recess portion 101, that one end fits extended in recess portion 101 have a connecting rod 18, the connecting rod 18
The second axis pin 712 is combined between the power rail 8, during the power rail 8 moves up, blinds 7 described in polylith
Downwardly turn over movement, gradually close the frame 1, during the power rail 8 moves down, blinds 7 described in polylith it is equal
It is flipped up movement, is gradually opened the frame 1, a through-hole 9 is drilled in the side of 1 front end of frame, is matched by the through-hole 9
Conjunction has a pullswitch 10, which connects the power rail 8, when the pullswitch 10 is in relaxed state,
7 combined closing frame of blinds described in polylith, after pulling pullswitch 10, power rail 8 is under the action of pullswitch 10
It moves down, blinds 7 described in polylith overturns opening at this time.
The material of the plastic septum is flame-proof ABS plastics.By flame-proof ABS plastics, routinely technique processing can be prepared by moulding
Expect partition board.
The flame-proof ABS plastics are prepared by the raw material of following weight parts：100 parts of ABS resin, tributyl citrate 5
Part, 10 parts of alkali-free glass fibre, 6 parts of polyethylene wax, 2 parts of Phosphaphenanthrene fire retardant, 4 parts of band fluorenyl phosphonium flame retardant, vinyl
Three 0.8 part of ('beta '-methoxy ethyoxyl) silane, modified 10 parts of boehmite, four (2,4- di-tert-butylphenols) -4,4- xenyls two are sub-
.6 parts of phosphoesterase 30.
The preparation method of the modified boehmite is：By boehmite microwave power be 650W, microwave frequency 2450MHz
Lower microwave activates 7min, obtains activation boehmite；Take 100g activation boehmite, 150g phosphoric acid, 0.2g hydroxy silicon oils, 10g six inclined
It is that 300r/min stirs 2h that sodium phosphate, 15g hexadecyltrimethylammonium chlorides, which are added in 1000g deionized waters with rotating speed, is stood
25h is that 6000r/min centrifuges 20min with rotating speed, and it is 90 DEG C of dry 20h modified vigorous nurses to obtain the final product to abandon supernatant and will be deposited in temperature
Stone.
The production technology of above-mentioned flame-proof ABS plastics, includes the following steps：
Step 1：It is that 500r/min is stirred 10min that each raw material, which is added in mixing machine with rotating speed, obtains mixture；
Step 2：Mixture is put into double screw extruder hopper, the temperature setting of the double screw extruder is：One
Area's temperature is 215 DEG C, and two area's temperature are 225 DEG C, and three area's temperature are 225 DEG C, and four area's temperature are 225 DEG C, and five area's temperature are 235
DEG C, six area's temperature are 235 DEG C, and seven area's temperature are 230 DEG C, and eight area's temperature are 230 DEG C, and head temperature is 230 DEG C, and screw speed is
150 revs/min；Mixture melted by heat flows out, through blank in the case where the screw rod of plastics double screw extruder is pushed through poroid mouth mold
Machine earnestly at a diameter of 3mm, a height of 3mm cylindrical pellets to get flame-proof ABS plastics.Flame-proof ABS plastics performance test knot
Fruit：Tensile strength reduced rate is 1.75%, oxygen index (OI) 39.2%.
The beneficial effects of the invention are as follows：For the present apparatus in routine use, rotating generated wind-force using fan assembly can
To blow blinds open, it is conducive to the exchange of indoor and outdoor air, it is more suitable in outside air temperature, when reducing temperature without huge discharge ventilation,
Pullswitch control blinds can be utilized to open completely, be easy to the exchange of inner air and outer air, wind turbine is in small wind-force working condition and is
Can, the structure of the present apparatus is relatively simple, and the flame retardant property of partition board used is good, high temperature resistant, thermal deformation dimensionally stable, intensity are high,
Cost is more cheap, is easy to be installed, and is suitble to promote the use of.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (10)
1. a kind of negative-pressure air fan, it is characterised in that：Including a frame, it is internally provided with a partition board in the frame, the partition board
An air holes by air-flow is provided at axle center, in two cradling pieces that are internally provided with of the frame, two cradling pieces point
Set on the forward and backward side of the partition board, a shaft is combined between two cradling pieces, which passes through the center of circle position of air holes
It sets, a fan assembly is combined on the shaft, driving fan assembly rotation is internally provided in the frame
Motor is both provided with recess portion at two side positions of the frame, and the blinds of wind-guiding, institute are provided on the inside of the frame
It states blinds and is arranged in parallel with polylith, the both ends of the blinds are both provided with rotatable lamella, match between the rotatable lamella and the frame
Conjunction has the first axis pin, and vertical movable is provided with a power rail within the recess, and first axis pin prolongs after passing through the frame
It extends in the recess portion, that one end fits extended in recess portion have a connecting rod, match between the connecting rod and the power rail
Conjunction has the second axis pin, during the power rail moves up, blinds described in polylith downwardly turn over movement, gradually close institute
State frame, during the power rail moves down, blinds described in polylith be flipped up movement, be gradually opened the frame
Frame is drilled with a through-hole in the side of frame front end, a pullswitch is combined with by the through-hole, described in pullswitch connection
Power rail is opened when the pullswitch is in relaxed state, blinds combined closing frame described in polylith when pulling the bracing wire
Guan Hou, power rail move down under the action of pullswitch, and blinds described in polylith overturns opening at this time；The cradling piece
Upper and lower end is welded and fixed between the frame；It is combined with a protection network in the front end of the frame, the protection network is lattice
Grid structure.
2. negative-pressure air fan according to claim 1, it is characterised in that：The front end of the pullswitch is a ring portion.
3. negative-pressure air fan according to claim 1, it is characterised in that：The fan assembly includes reel, and annular setting
Connecting plate on the outside of the reel, the connecting plate are combined with flabellum, and the shaft passes through the reel, the shaft with
Bearing is combined between the reel, the motor is fixed on the interior bottom of frame.
4. negative-pressure air fan according to claim 5, it is characterised in that：A belt wheel is provided at the outer ring of the reel, it should
Belt wheel is welded and fixed with the connecting plate, and the output end of the motor is fixed with first pulley, in the belt wheel and described first
Transmission belt is combined between belt wheel.
5. negative-pressure air fan according to claim 1, it is characterised in that：The frame goes to upper and lower including two pieces and is arranged in parallel
The first plate, and vertical the second plate being connected between two blocks of first plates, the recess portion are the second panel-bending
After obtain.
6. negative-pressure air fan according to claim 7, it is characterised in that：Riveting between first plate and second plate
Nail is fixed.
7. negative-pressure air fan according to claim 1, it is characterised in that：The through-hole includes macroperforation and aperture portion,
The aperture portion is connected with the macroperforation, and a block is fixed on the pullswitch, and the width of the block is less than
The diameter of the macroperforation, the width of the block are more than the diameter of the aperture portion, when the block passes through described beat
After bore portion, the pullswitch is pulled down, pullswitch is stuck in aperture portion at this time, and the block limit is in the outer of frame
Portion, the blinds is in the open state at this time.
8. negative-pressure air fan according to claim 1, it is characterised in that：The partition board is plastic septum, the plastic septum
Material be flame-proof ABS plastics.
9. negative-pressure air fan according to claim 8, it is characterised in that：The flame-proof ABS plastics by following weight parts original
Material is prepared：It is 95-105 parts of ABS resin, 2-8 parts of plasticizer, 5-15 parts of alkali-free glass fibre, 3-9 parts of polyethylene wax, fire-retardant
2-8 parts of agent, 0.3-1.3 parts of vinyl three ('beta '-methoxy ethyoxyl) silane, 5-15 parts of boehmite, four (2,4- di-t-butyls
Phenol) 0.3-0.9 parts of -4,4- xenyl diphosphites.
10. negative-pressure air fan according to claim 8, it is characterised in that：The flame-proof ABS plastics by following weight parts original
Material is prepared：It is 95-105 parts of ABS resin, 2-8 parts of plasticizer, 5-15 parts of alkali-free glass fibre, 3-9 parts of polyethylene wax, fire-retardant
2-8 parts of agent, 0.3-1.3 parts of vinyl three ('beta '-methoxy ethyoxyl) silane, modified 5-15 parts of boehmite, four (bis- tertiary fourths of 2,4-
Base phenol) 0.3-0.9 parts of -4,4- xenyl diphosphites.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228153.XA CN108488080B (en) | 2018-03-20 | 2018-03-20 | Negative pressure fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228153.XA CN108488080B (en) | 2018-03-20 | 2018-03-20 | Negative pressure fan |
Publications (2)
| Publication Number | Publication Date |
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| CN108488080A true CN108488080A (en) | 2018-09-04 |
| CN108488080B CN108488080B (en) | 2020-08-21 |
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| CN201810228153.XA Active CN108488080B (en) | 2018-03-20 | 2018-03-20 | Negative pressure fan |
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| CN201723467U (en) * | 2010-05-14 | 2011-01-26 | 广州慧全科技信息咨询有限公司 | Negative-pressure fan with good dust-exhausting property |
| CN201851407U (en) * | 2010-09-26 | 2011-06-01 | 边永明 | Louver bracket on air outlet of negative pressure fan |
| CN202900702U (en) * | 2012-09-21 | 2013-04-24 | 刘敏 | Multifunctional negative pressure fan |
| TWM453721U (en) * | 2012-12-27 | 2013-05-21 | Ya Suh Dar Ventilation Co Ltd | Louver blades interlocking member of industrial fan |
| CN104405686A (en) * | 2014-12-06 | 2015-03-11 | 漳州永裕隆精密五金有限公司 | Novel negative pressure fan |
| CN206682050U (en) * | 2017-04-10 | 2017-11-28 | 东莞市敏欣实业有限公司 | A kind of water proof and dust proof negative-pressure air fan |
-
2018
- 2018-03-20 CN CN201810228153.XA patent/CN108488080B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201723467U (en) * | 2010-05-14 | 2011-01-26 | 广州慧全科技信息咨询有限公司 | Negative-pressure fan with good dust-exhausting property |
| CN201851407U (en) * | 2010-09-26 | 2011-06-01 | 边永明 | Louver bracket on air outlet of negative pressure fan |
| CN202900702U (en) * | 2012-09-21 | 2013-04-24 | 刘敏 | Multifunctional negative pressure fan |
| TWM453721U (en) * | 2012-12-27 | 2013-05-21 | Ya Suh Dar Ventilation Co Ltd | Louver blades interlocking member of industrial fan |
| CN104405686A (en) * | 2014-12-06 | 2015-03-11 | 漳州永裕隆精密五金有限公司 | Novel negative pressure fan |
| CN206682050U (en) * | 2017-04-10 | 2017-11-28 | 东莞市敏欣实业有限公司 | A kind of water proof and dust proof negative-pressure air fan |
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|---|---|
| CN108488080B (en) | 2020-08-21 |
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