CN106730503A - A kind of fire-fighting mechanical foam producing device - Google Patents
A kind of fire-fighting mechanical foam producing device Download PDFInfo
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- CN106730503A CN106730503A CN201611156947.7A CN201611156947A CN106730503A CN 106730503 A CN106730503 A CN 106730503A CN 201611156947 A CN201611156947 A CN 201611156947A CN 106730503 A CN106730503 A CN 106730503A
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- fire
- bull stick
- producing device
- case
- right sides
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The present invention relates to a kind of foam producing device, more particularly to a kind of fire-fighting mechanical foam producing device.The technical problem to be solved in the present invention is to provide the small fire-fighting mechanical foam producing device of a kind of fast foam speed of response, high working efficiency, the amount of labour.In order to solve the above-mentioned technical problem, the invention provides such a fire-fighting mechanical foam producing device, include sliding block, place plate, slide rail, cylinder, base, the first directional wheel, first bearing seat, the first bull stick, flat belt, second bearing seat, support, steel wire rope etc.;Slide rail is provided with sliding block, and slider top is provided with placement plate, places plate top right side and is provided with electric rotating machine, and electric rotating machine is provided with the first bull stick, places plate top left and right and is symmetrically arranged on two with support.Invention achieves the foam speed of response is fast, the small effect of high working efficiency, the amount of labour, can quickly and easily produce mechanical foam using the present apparatus, mitigate the difficulty that mechanical foam makes.
Description
Technical field
The present invention relates to a kind of foam producing device, more particularly to a kind of fire-fighting mechanical foam producing device.
Background technology
" fire-fighting " one word, is Japanese, starts this word occur in the river family epoch.9 years (clear Yongzheng of prosperous guarantor is seen earliest
2 years, 1724), Wu Zhou Xin Cang prefectures《Book before royal people's account》, there is the note of " when there is fire, ' fire-fighting ' in village is just arrived in "
Carry.Start popularization to Mingzhi's initial stage (same clearly to control 12 years, 1873) " fire-fighting " one word.But the root of " fire-fighting " is in China.Japan
Word be to be developed from the Chinese character of China, Chinese character begins to incoming Japan early in Western Jin Dynasty Taikan 5 years (284 years)." fire-fighting "
Not only font is identical with Chinese character for one word, the meaning of word also indifference.The appearance of " fire-fighting " one word, has fully reacted at that time Sino-Japan two
State's cultural exchanges are close.Fire and fire-fighting are a very ancient propositions.In all kinds of natural calamities, fire is that one kind is not received
Time, space limitation, occurrence frequency disaster very high.The association with the history of mankind's fire of this disaster;To take precautions against and control
The fire-fighting work (Gu claims " fiery political affairs ") of fire is managed, is also just arisen at the historic moment.
Air foam is that one kind can mix with water, the foam produced by mechanical means, is usually used in mechanical foam fire extinguishing
Agent.It is divided into low power number, medium multiple, three kinds of high magnification numbe.The coefficient of foaming of low expansion foam extinguishing chemical below 20 times, medium multiple
The coefficient of foaming of fire foam is between 20~500.The coefficient of foaming of high-expansion foam extinguishing agent 500~1000 times it
Between.Wherein low expansion foam extinguishing chemical is divided into protein foam, fluoroprotein foam, AFFF (also known as aqueous film forming foam or fluorine again
Chemical foam), the several types such as synthetic foam and water-resistant foam extinguishing chemical.
There is the foam speed of response slow, inefficiency, tedious in existing fire-fighting mechanical foam producing device
Shortcoming, therefore need a kind of fast foam speed of response of design, high working efficiency, the amount of labour small fire-fighting mechanical foam making dress badly
Put.
The content of the invention
(1) technical problem to be solved
The foam speed of response is slow, operating efficiency in order to overcome existing fire-fighting mechanical foam producing device to exist for the present invention
Low, tedious shortcoming, the technical problem to be solved in the present invention be to provide a kind of foam speed of response fast, high working efficiency,
The amount of labour small fire-fighting mechanical foam producing device.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides such a fire-fighting mechanical foam producing device, including
There is sliding block, place plate, slide rail, cylinder, base, the first directional wheel, first bearing seat, the first bull stick, flat belt, second bearing
Seat, support, steel wire rope, electric rotating machine, the first belt pulley, feed pipe, making case, air inlet pipe, air pump, the second belt pulley, second
Bull stick, the second directional wheel, reel, gear, tooth bar and top board;Base top is provided with slide rail, and slide rail is provided with sliding block, sliding block top
Portion is provided with placement plate, places plate top right side and is provided with electric rotating machine, and electric rotating machine is provided with the first bull stick, places plate top left and right
Support is symmetrically arranged on two with, electric rotating machine is located between the support of the left and right sides, and right side support left lower is provided with first bearing seat,
First bull stick right-hand member is connected with first bearing seat, and the first bull stick is provided with the first belt pulley, left and right sides support inside upper part pair
Title is provided with second bearing seat, and the second bull stick is provided between second bearing seat, and the second bull stick middle part is provided with making case, makes bottom portion
Feed pipe is provided with, box top is made and is provided with air pump, air pump is provided with air inlet pipe, and air inlet pipe is passed through and makes case, air inlet pipe end position
In making in case, make box top right side and be provided with aperture, the second bull stick right part is provided with the second belt pulley, the first belt pulley and second
Belt pulley is symmetrically arranged on two with the first directional wheel by flat-belt drive, slide rail top left and right, and base top is provided with top board, top board
Bottom middle part is provided with cylinder, and cylinder lower end is connected with tooth bar, and the cylinder left and right sides is arranged with gear, and gear is located at top board bottom
Portion, wheel and rack engagement, left and right sides gear front side is equipped with reel, and steel wire rope is wound with the reel of the left and right sides,
The direction of winding of left and right sides steel wire rope is identical, and the cylinder left and right sides is arranged with the second directional wheel, and the second directional wheel is each provided at
Top board bottom, the second directional wheel be located at gear outside, left and right sides steel wire rope bypass respectively the directional wheel of the left and right sides first and
Second directional wheel is connected with left and right sides sliding block.
Preferably, arc is also included, plate middle top is placed and is provided with arc, arc top and making bottom portion
Contact.
Preferably, wheel is also included, plate bottom middle part is placed and is provided with wheel, wheel bottom and slide rail top contact.
Preferably, vibrator is also included, box top left side is made and is provided with vibrator.
Preferably, it is Q235 steel to place sheet material matter.
Preferably, base material is HT200.
Operation principle:Staff, while opening air pump, air is input into by feed pipe toward charging in making case first
Enter and make case, then control electric rotating machine to rotate clockwise, so as to drive the first bull stick to rotate clockwise, the first bull stick is clockwise
Rotate and drive the first belt pulley to rotate clockwise, rotated clockwise by the effect and then the second belt pulley of drive of flat belt, the
Two belt pulleys rotate clockwise the second bull stick of drive and rotate clockwise, so as to drive making case to rotate clockwise, when making, case is suitable
When hour hands turn to certain angle, then electric rotating machine is controlled to rotate counterclockwise, so that drive the first bull stick to rotate counterclockwise, first
Bull stick rotates counterclockwise the first belt pulley of drive and rotates counterclockwise, effect and then the second belt pulley inverse time of drive by flat belt
Pin is rotated, and the second belt pulley rotates counterclockwise the second bull stick of drive and rotates counterclockwise, so as to drive making case to rotate counterclockwise, is controlled
Electric rotating machine processed constantly alternate rotation clockwise and anticlockwise, so that make case constantly rotating, makes going out in making case
Fiery agent and water are sufficiently mixed.Cylinder elongation is controlled simultaneously, so that band carry-over bar is moved downward, and then the gear inverse time on the right side of drive
Pin is rotated and the gear in left side is rotated clockwise, and the gear on right side rotates counterclockwise the reel on the right side of driving and rotates counterclockwise,
Steel wire rope is put, the gear in left side rotates clockwise the reel on the left of driving and rotates clockwise, and receives steel wire rope, so that band movable slider
It is moved to the left, and then drives placement plate to be moved to the left, make case and be also moved to the left therewith, certain distance is moved to when plate is placed
Afterwards, then cylinder is controlled to shorten, so that band carry-over bar is moved upwards, and then gear on the right side of driving rotates clockwise the tooth with left side
Wheel is rotated counterclockwise, and the gear on right side rotates clockwise the reel on the right side of driving and rotates clockwise, and receives steel wire rope, the tooth in left side
Wheel rotates counterclockwise the reel on the left of driving and rotates counterclockwise, and puts steel wire rope, so that band movable slider moves right, and then drives
Place plate to move right, make case and also move right therewith, control cylinder constantly extends and shorten alternating movement, makes making case
Constantly move left and right.Therefore staff controls to make the action of case by controlling electric rotating machine and cylinder, makes extinguishing chemical
It is fully contacted with water, so that production machinery foam, after mechanical foam makes and finishes, closes electric rotating machine and air pump, works as gas
After cylinder resets, cylinder is closed, and the mechanical foam that will be made in case takes out.
Because also including arc, place plate middle top and be provided with arc, arc top connects with bottom portion is made
Touch, in manufacturing process, make case constantly rotate, arc can stabilized making case, prevent make case drop.
Because also including wheel, place plate bottom middle part and be provided with wheel, wheel bottom and slide rail top contact, can subtract
The pressure of light sliding block, improves the efficiency slided.
Because also including vibrator, make box top left side and be provided with vibrator, in manufacturing process, control vibrator work
Make, the vibration frequency for making case can be increased so that extinguishing chemical is sufficiently contacted with water, finished when mechanical foam makes
Afterwards, vibrator is closed.
(3) beneficial effect
Invention achieves the foam speed of response is fast, the small effect of high working efficiency, the amount of labour, can be fast using the present apparatus
Speed simply produces mechanical foam, mitigates the difficulty that mechanical foam makes, and the efficiency that mechanical foam makes is improved, so as to realize
Mechanical foam supply effect sufficient in time.
Brief description of the drawings
Fig. 1 is the first main structure diagram of the invention.
Fig. 2 is second main structure diagram of the invention.
Fig. 3 is the third main structure diagram of the invention.
Fig. 4 is the 4th kind of main structure diagram of the invention.
Mark in accompanying drawing for:1- sliding blocks, 2- places plate, 3- slide rails, 4- cylinders, 5- bases, the directional wheels of 6- first, 7- the
One bearing block, the bull sticks of 8- first, 9- flat belts, 10- second bearing seats, 11- supports, 12- steel wire ropes, 13- electric rotating machines, 14-
First belt pulley, 15- feed pipes, 16- makes case, 17- air inlet pipe, 18- air pumps, 19- apertures, the belt pulleys of 20- second, 21- the
Two bull sticks, the directional wheels of 22- second, 23- reels, 24- gears, 25- tooth bars, 26- top boards, 27- arcs, 28- wheels, 29-
Vibrator.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1
A kind of fire-fighting mechanical foam producing device, as Figure 1-4, includes sliding block 1, places plate 2, slide rail 3, cylinder
4th, base 5, the first directional wheel 6, first bearing seat 7, the first bull stick 8, flat belt 9, second bearing seat 10, support 11, steel wire rope
12nd, electric rotating machine 13, the first belt pulley 14, feed pipe 15, make case 16, air inlet pipe 17, air pump 18, the second belt pulley 20, the
Two bull sticks 21, the second directional wheel 22, reel 23, gear 24, tooth bar 25 and top board 26;The top of base 5 is provided with slide rail 3, slide rail 3
Sliding block 1 is provided with, the top of sliding block 1 is provided with placement plate 2, places the top right side of plate 2 and is provided with electric rotating machine 13, is set on electric rotating machine 13
Have the first bull stick 8, place the top of plate 2 left and right and be symmetrically arranged on two with support 11, electric rotating machine 13 be located at left and right sides support 11 it
Between, the left lower of right side support 11 is provided with first bearing seat 7, and the right-hand member of the first bull stick 8 is connected with first bearing seat 7, the first bull stick 8
Be provided with the first belt pulley 14, the inside upper part of left and right sides support 11 is arranged with second bearing seat 10, second bearing seat 10 it
Between be provided with the second bull stick 21, the middle part of the second bull stick 21 is provided with making case 16, makes the bottom of case 16 and is provided with feed pipe 15, makes case 16
Top is provided with air pump 18, and air pump 18 is provided with air inlet pipe 17, and air inlet pipe 17 is located at and makes through case 16, the end of air inlet pipe 17 is made
In case 16, make the top right side of case 16 and be provided with aperture 19, the right part of the second bull stick 21 is provided with the second belt pulley 20, the first belt pulley 14
It is driven by flat belt 9 with the second belt pulley 20, the top of slide rail 3 left and right is symmetrically arranged on two with the first directional wheel 6, the top of base 5
Top board 26 is provided with, the bottom of top board 26 middle part is provided with cylinder 4, and the lower end of cylinder 4 is connected with tooth bar 25, and the left and right sides of cylinder 4 symmetrically sets
There is gear 24, gear 24 is located at the bottom of top board 26, and gear 24 is engaged with tooth bar 25, the front side of left and right sides gear 24 is equipped with coiling
Wheel 23, is wound with steel wire rope 12 on left and right sides reel 23, the direction of winding of left and right sides steel wire rope 12 is identical, and cylinder 4 is left
The right side is symmetrically arranged on two with the second directional wheel 22, and the second directional wheel 22 is each provided at the bottom of top board 26, and the second directional wheel 22 is located at gear
24 outside, left and right sides steel wire rope 12 bypasses the left and right sides the first directional wheel 6 and the second directional wheel 22 and the left and right sides respectively
Sliding block 1 is connected.
Arc 27 is also included, the middle top of plate 2 is placed and is provided with arc 27, the top of arc 27 and making case 16 bottom
Portion contacts.
Wheel 28 is also included, the bottom of plate 2 middle part is placed and is provided with wheel 28, the bottom of wheel 28 and the top contact of slide rail 3.
Vibrator 29 is also included, the top left side of case 16 is made and is provided with vibrator 29.
It is Q235 steel to place the material of plate 2.
The material of base 5 is HT200.
Operation principle:Staff is by feed pipe 15 toward charging in making case 16 first, while air pump 18 is opened, by sky
Gas is input into making case 16, then controls electric rotating machine 13 to rotate clockwise, so that drive the first bull stick 8 to rotate clockwise, the
One bull stick 8 rotates clockwise the first belt pulley 14 of drive and rotates clockwise, effect and then the second belt of drive by flat belt 9
Wheel 20 is rotated clockwise, and the second belt pulley 20 rotates clockwise the second bull stick 21 of drive and rotates clockwise, so as to drive making case
16 rotate clockwise, and when making case 16 is rotated clockwise to certain angle, then control electric rotating machine 13 to rotate counterclockwise, so that
The first bull stick 8 is driven to rotate counterclockwise, the first bull stick 8 rotates counterclockwise the first belt pulley 14 of drive and rotates counterclockwise, by flat
The effect of belt 9 and then the second belt pulley 20 is driven to rotate counterclockwise, the second belt pulley 20 rotates counterclockwise the second bull stick of drive
21 are rotated counterclockwise, so as to drive making case 16 to rotate counterclockwise, control electric rotating machine 13 is constantly handed over clockwise and anticlockwise
For rotation, so that make case 16 constantly rotating, it is sufficiently mixed extinguishing chemical and water in making case 16.Cylinder is controlled simultaneously
4 elongations, so that band carry-over bar 25 is moved downward, and then gear 24 on the right side of driving rotates counterclockwise the up time of gear 24 with left side
Pin is rotated, and the gear 24 on right side rotates counterclockwise the reel 23 on the right side of driving and rotates counterclockwise, and puts steel wire rope 12, the tooth in left side
Wheel 24 rotates clockwise the reel 23 on the left of driving and rotates clockwise, and receives steel wire rope 12, so that band movable slider 1 is moved to the left,
And then drive placement plate 2 to be moved to the left, and make case 16 and be also moved to the left therewith, after placement plate 2 moves to certain distance, then control
Cylinder processed 4 shortens, so as to rotate clockwise the gear with left side with the gear 24 on the right side of carry-over bar 25 upwards motion, and then drive
24 rotate counterclockwise, and the gear 24 on right side rotates clockwise the reel 23 on the right side of driving and rotates clockwise, and receives steel wire rope 12, left
The gear 24 of side rotates counterclockwise the reel 23 on the left of driving and rotates counterclockwise, and puts steel wire rope 12, so that band movable slider 1 is to the right
It is mobile, and then drive placement plate 2 to move right, making case 16 and also move right therewith, control cylinder 4 constantly extends and shortens
Alternating movement, makes making case 16 constantly move left and right.Therefore staff is by controlling electric rotating machine 13 and cylinder 4 to control
The action of case 16 is made, extinguishing chemical and water is fully contacted, so that production machinery foam, after mechanical foam makes and finishes,
Electric rotating machine 13 and air pump 18 are closed, after cylinder 4 resets, cylinder 4 is closed, and the mechanical foam that will be made in case 16 takes out.
Because also including arc 27, place the middle top of plate 2 and be provided with arc 27, the top of arc 27 and making case
16 bottoms contact, and in manufacturing process, make case 16 and constantly rotate, and arc 27 stabilized can make case 16, prevent system
Make case 16 to drop.
Because also including wheel 28, place the bottom of plate 2 middle part and be provided with wheel 28, the bottom of wheel 28 connects with the top of slide rail 3
Touch, the pressure of sliding block 1 can be mitigated, improve the efficiency slided.
Because also including vibrator 29, make the top left side of case 16 and be provided with vibrator 29, in manufacturing process, control swashs
The device 29 that shakes works, and can increase the vibration frequency for making case 16 so that extinguishing chemical is sufficiently contacted with water, works as mechanical foam
After making is finished, vibrator 29 is closed.
Embodiment described above only expresses the preferred embodiment of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations, improvement can also be made and substituted, these belong to this hair
Bright protection domain.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of fire-fighting mechanical foam producing device, it is characterised in that include sliding block (1), place plate (2), slide rail (3),
Cylinder (4), base (5), the first directional wheel (6), first bearing seat (7), the first bull stick (8), flat belt (9), second bearing seat
(10), support (11), steel wire rope (12), electric rotating machine (13), the first belt pulley (14), feed pipe (15), make case (16), enter
Tracheae (17), air pump (18), the second belt pulley (20), the second bull stick (21), the second directional wheel (22), reel (23), gear
(24), tooth bar (25) and top board (26);Base (5) top is provided with slide rail (3), and slide rail (3) is provided with sliding block (1), sliding block (1) top
Portion is provided with placement plate (2), places plate (2) top right side and is provided with electric rotating machine (13), and electric rotating machine (13) is provided with the first bull stick
(8), place plate (2) top left and right and be symmetrically arranged on two with support (11), electric rotating machine (13) positioned at left and right sides support (11) it
Between, right side support (11) left lower is provided with first bearing seat (7), and the first bull stick (8) right-hand member is connected with first bearing seat (7),
First bull stick (8) is provided with the first belt pulley (14), and left and right sides support (11) inside upper part is arranged with second bearing seat
(10) the second bull stick (21), is provided between second bearing seat (10), the second bull stick (21) middle part is provided with making case (16), makes case
(16) bottom is provided with feed pipe (15), makes case (16) top and is provided with air pump (18), and air pump (18) is provided with air inlet pipe (17), enters
Tracheae (17) is located at and makes in case (16) through case (16), air inlet pipe (17) end is made, and makes case (16) top right side and is provided with
Aperture (19), the second bull stick (21) right part is provided with the second belt pulley (20), and the first belt pulley (14) leads to the second belt pulley (20)
Flat belt (9) transmission is crossed, slide rail (3) top left and right is symmetrically arranged on two with the first directional wheel (6), and base (5) top is provided with top board
(26), top board (26) bottom middle part is provided with cylinder (4), and cylinder (4) lower end is connected with tooth bar (25), cylinder (4) left and right sides pair
Title is provided with gear (24), and gear (24) is located at top board (26) bottom, and gear (24) is engaged with tooth bar (25), left and right sides gear
(24) front side is equipped with reel (23), and steel wire rope (12), left and right sides steel wire rope are wound with left and right sides reel (23)
(12) direction of winding is identical, and cylinder (4) left and right sides is arranged with the second directional wheel (22), and the second directional wheel (22) is each provided at
Top board (26) bottom, positioned at the outside of gear (24), left and right sides steel wire rope (12) bypasses left and right to the second directional wheel (22) respectively
The directional wheel of both sides first (6) and the second directional wheel (22) are connected with left and right sides sliding block (1).
2. a kind of fire-fighting mechanical foam producing device according to claim 1, it is characterised in that also include arc
(27), place plate (2) middle top and be provided with arc (27), arc (27) top contacts with case (16) bottom is made.
3. a kind of fire-fighting mechanical foam producing device according to claim 1, it is characterised in that also include wheel
(28), place plate (2) bottom middle part and be provided with wheel (28), wheel (28) bottom and slide rail (3) top contact.
4. a kind of fire-fighting mechanical foam producing device according to claim 1, it is characterised in that also include vibrator
(29), make case (16) top left side and be provided with vibrator (29).
5. a kind of fire-fighting mechanical foam producing device according to claim 1, it is characterised in that place plate (2) material
It is Q235 steel.
6. a kind of fire-fighting mechanical foam producing device according to claim 1, it is characterised in that base (5) material is
HT200。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201611156947.7A CN106730503A (en) | 2016-12-15 | 2016-12-15 | A kind of fire-fighting mechanical foam producing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201611156947.7A CN106730503A (en) | 2016-12-15 | 2016-12-15 | A kind of fire-fighting mechanical foam producing device |
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Publication Number | Publication Date |
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CN106730503A true CN106730503A (en) | 2017-05-31 |
Family
ID=58888994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201611156947.7A Withdrawn CN106730503A (en) | 2016-12-15 | 2016-12-15 | A kind of fire-fighting mechanical foam producing device |
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CN (1) | CN106730503A (en) |
Cited By (1)
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CN107139150A (en) * | 2017-06-22 | 2017-09-08 | 浙江雷霆电子科技有限公司 | A kind of dust protected electronic box rack being moved easily |
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CN201244307Y (en) * | 2008-08-08 | 2009-05-27 | 广州三业科技有限公司 | Foam-mixing device with digital definite proportion |
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CN106187359A (en) * | 2016-08-19 | 2016-12-07 | 陈朝阳 | A kind of animal husbandry bio-organic fertilizer Efficient Agitator |
CN205760991U (en) * | 2016-06-27 | 2016-12-07 | 信丰县包钢新利稀土有限责任公司 | A kind of neodymium iron boron waste material Automatic continuous feed arrangement |
CN206473681U (en) * | 2016-12-15 | 2017-09-08 | 神州金山物联网科技(上海)有限公司 | A kind of fire-fighting mechanical foam producing device |
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Publication number | Priority date | Publication date | Assignee | Title |
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CA2347884A1 (en) * | 2000-05-19 | 2001-11-19 | Carba Fire Technologies | Fire fighting apparatus |
CN101259308A (en) * | 2008-04-28 | 2008-09-10 | 兴化锁龙消防药剂有限公司 | Forced foam generator |
CN201244307Y (en) * | 2008-08-08 | 2009-05-27 | 广州三业科技有限公司 | Foam-mixing device with digital definite proportion |
CN205760991U (en) * | 2016-06-27 | 2016-12-07 | 信丰县包钢新利稀土有限责任公司 | A kind of neodymium iron boron waste material Automatic continuous feed arrangement |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107139150A (en) * | 2017-06-22 | 2017-09-08 | 浙江雷霆电子科技有限公司 | A kind of dust protected electronic box rack being moved easily |
CN107139150B (en) * | 2017-06-22 | 2020-11-06 | 大河互联科技(新沂)有限公司 | Convenient dust protected electron box rack that removes |
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