CN110034492A - The electric distribution box of self-extinguishing - Google Patents
The electric distribution box of self-extinguishing Download PDFInfo
- Publication number
- CN110034492A CN110034492A CN201910414843.9A CN201910414843A CN110034492A CN 110034492 A CN110034492 A CN 110034492A CN 201910414843 A CN201910414843 A CN 201910414843A CN 110034492 A CN110034492 A CN 110034492A
- Authority
- CN
- China
- Prior art keywords
- distribution box
- containing tube
- self
- box body
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000843 powder Substances 0.000 claims abstract description 35
- 235000012054 meals Nutrition 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000036642 wellbeing Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/42—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with mechanical connection between sensor and actuator, e.g. rods, levers
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/46—Construction of the actuator
- A62C37/48—Thermally sensitive initiators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The present invention provides a kind of electric distribution boxes of self-extinguishing, comprising: distribution box body offers powder falling mouth at the top of the distribution box body；For storing the Chu Fenxiang of dry powder, it is installed on the distribution box body, the bottom of the storage powder case offers the meal outlet for being connected to the powder falling mouth, is formed with inserted sheet mouth on the side wall of the storage powder case；For closing the inserted sheet of the meal outlet, movably it is inserted in the inserted sheet mouth；And the driving device of the meal outlet is opened for inserted sheet described in pull, it is installed on the distribution box body.The present invention solves the problems, such as that existing cubicle switch does not have fire-extinguishing function concurrently.
Description
Technical field
The present invention relates to distribution box technical fields, and in particular to a kind of electric distribution box of self-extinguishing.
Background technique
Distribution box is divided into cubicle switch and outdoor distributing box.Existing distribution box is mostly metal material shell.Distribution
Case is the important component for constituting low-voltage distribution system, by switchgear, measuring instrumentss, protection electric appliance and ancillary equipment group
Low-tension distribution box is constituted in closing or semiclosed metal safe or in screen width.When normal operation, low-tension distribution box can be by hand
Dynamic or automatic switch connection or disjunction circuit.
But existing cubicle switch do not have fire extinguishing function, when in distribution box electronic equipment for a long time in use,
The phenomenon for being easy to happen short circuit generates fire, if cannot put out a fire in time will cause a large amount of property loss.
Summary of the invention
To overcome the defects of present in the prior art, a kind of electric distribution box of self-extinguishing is now provided, it is existing to solve
Cubicle switch do not have fire-extinguishing function concurrently the problem of.
To achieve the above object, a kind of electric distribution box of self-extinguishing is provided, comprising:
Distribution box body offers powder falling mouth at the top of the distribution box body；
For storing the Chu Fenxiang of dry powder, it is installed on the distribution box body, the bottom of the storage powder case offers company
The meal outlet of the powder falling mouth is passed through, is formed with inserted sheet mouth on the side wall of the storage powder case；
For closing the inserted sheet of the meal outlet, movably it is inserted in the inserted sheet mouth；And
The driving device that the meal outlet is opened for inserted sheet described in pull, is installed on the distribution box body.
Further, the driving device includes:
Articulated slab can be connected to the outside of the distribution box body side wall with turning down；
Clump weight is held on the articulated slab, is connected with hauling rope between the clump weight and the inserted sheet；And
It is used to support the outside that the distribution box body side wall is movably installed in the support plate of the articulated slab.
Further, the driving device further include:
Containing tube, first end opening of containing tube are connected to the outside of the distribution box body side wall, the containing tube
It is inside slidably equipped with baffle, the side far from the distribution box body side wall of the baffle is connected with rack gear, the containing tube
Tube wall offer axis hole；
Heat expansion air bag is set between the baffle and the outer wall, and the heat expansion air bag pushes institute after expanded by heating
Baffle is stated to move along the containing tube；
Transmission mechanism is formed with threaded hole in the support plate, and the transmission mechanism transmission connection is in the rack gear and spiral shell
Between pit, the second end that the transmission mechanism drives the support plate towards the containing tube under baffle promotion is mobile
To be detached from the articulated slab.
Further, the transmission mechanism includes first gear axis and second gear axis, and the first gear axis can be rotated
Ground is installed in the axis hole, and the first end of the first gear axis is equipped with the end tooth wheel for being engaged in the rack gear, and described first
The second end of gear shaft is equipped with first bevel gear, and the second gear axis is rotatably installed on the outer wall of the containing tube, institute
The first end for stating second gear axis, which is equipped with, is engaged in the second bevel gear of the first bevel gear, and the second of the second gear axis
End is formed with the external screw thread to match with the threaded hole, and the second gear axis is screwed together in the threaded hole.
Further, first that the axial direction setting along the containing tube is formed on the inner wall of the containing tube is sliding
Slot is formed with limited block on the baffle, and the limited block is slidedly arranged in the first sliding groove.
Further, second that the axial direction setting along the containing tube is formed on the outer wall of the containing tube is sliding
Slot is connected with gag lever post in the support plate, and it is sliding that one end far from the support plate of the gag lever post is slidedly arranged on described second
In slot.
Further, the first gear axis is rotationally arranged with first bearing, and the first bearing is placed in described
In axis hole.
Further, the second gear axis is rotationally arranged with second bearing, the second bearing and the accommodating
Support is connected with connecting rod between the outer wall of pipe.
Further, the top of the side plate is equipped with fixed pulley, and the hauling rope is wound in the fixed pulley.
Further, the articulated slab is articulated and connected by hinge in the outer wall of the distribution box body side wall, the conjunction
Page is horizontally disposed.
The beneficial effects of the present invention are the electric distribution box of self-extinguishing of the invention in setting on distribution box by storing up
The Chu Fenxiang for depositing dry powder blocks the meal outlet of storage powder case using inserted sheet, passes through drive when interior electronic equipment is on fire in distribution box
Device pull inserted sheet is moved to open powder falling mouth, so that the dry powder of storage is fallen into via powder falling mouth to stamp out the flames in distribution box, this
The electric distribution box of the self-extinguishing of invention can in time put out a fire to the fire generated in distribution box, reduce the property of people
Loss, promotes the well-being of mankind.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the electric distribution box of the self-extinguishing of the embodiment of the present invention.
Fig. 2 is partial enlarged view at the A in Fig. 1 embodiment.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Shown in referring to Figures 1 and 2, the present invention provides a kind of electric distribution boxes of self-extinguishing, comprising: distribution box body
1, powder case 2, inserted sheet 3 and driving device are stored up.
The top of distribution box body 1 offers powder falling mouth.Specifically, distribution box body 1 includes top plate 11, bottom plate and connection
Side plate 12 between top plate 11 and bottom plate.Top plate 11 offers powder falling mouth 110.
Storage powder case is for storing dry powder.Storage powder case 2 is installed on distribution box body 1.The bottom of storage powder case 2 offers connection
In the meal outlet 20 of powder falling mouth 110.It stores up and is formed with inserted sheet mouth on the side wall of powder case 2.
Inserted sheet 3 is for closing meal outlet.Inserted sheet 3 is movably inserted in inserted sheet mouth.
Driving device is for pull inserted sheet 3 to open meal outlet 20.Driving device is installed on distributing box 1.
The electric distribution box of self-extinguishing of the invention by distribution box setting storage dry powder Chu Fenxiang, using insert
Piece blocks the meal outlet of storage powder case, by driving device pull inserted sheet to open powder falling when the electronic equipment in distribution box is on fire
Mouthful, so that the dry powder of storage is fallen into via powder falling mouth to stamp out the flames in distribution box, the electrical power distribution of self-extinguishing of the invention
Case can in time put out a fire to the fire generated in distribution box, reduce the property loss of people, promote the well-being of mankind.
As a kind of preferable embodiment, driving device includes: articulated slab 41, clump weight 42, support plate 43 and traction
Rope 44.
Specifically, articulated slab 41 can be connected to the outside (i.e. the outside of side plate 12) of distribution box body side wall with turning down.Match
Pouring weight 42 is held on articulated slab 41.Hauling rope 44 is connected between clump weight 42 and inserted sheet 3.Support plate 43 is used to support in hinge
Fishplate bar.Support plate 43 is installed on the outside (outside of side plate 12) of distribution box body side wall.
The weight of clump weight will be far longer than rubbing between weight, inserted sheet and the side wall of Chu Fenxiang of the dry powder in storage bin
And, when distribution box is on fire, by driving support plate, so that articulated slab is turned over downwards, and then clump weight is downward between wiping resistance
It falls and pulling force is applied to hauling rope, inserted sheet is pulled by hauling rope, so that inserted sheet opens meal outlet.Clump weight is metal block or mixes
Solidifying soil block.
As a kind of preferable embodiment, driving device further includes containing tube 451, baffle 452, heat expansion air bag 453, tooth
Item 454 and transmission mechanism 455.
First end opening of containing tube 451 is connected to the outer wall of side plate 12.Baffle 452 is slidably equipped in containing tube.Baffle 452
The side of separate side plate 12 be connected with rack gear 454.The tube wall of containing tube offers axis hole.Heat expansion air bag 453 is set to baffle
Between 452 and the outer wall of side plate 12.Heat expansion air bag pushes baffle to move along containing tube after expanded by heating.It is formed in support plate 43
There is threaded hole.Transmission mechanism is sequentially connected between rack gear and the threaded hole of support plate 43.Transmission mechanism band under baffle promotion
The second end of dynamic support plate towards containing tube is mobile, so that support plate is detached from articulated slab.
Baffle is arranged along the radial direction of containing tube.Rack gear 454 is arranged along the axial direction of containing tube 451.Heat expansion air bag
453 two sides are pressed against second side of the close outer wall of outer wall and baffle 452 respectively.
Specifically, transmission mechanism 455 includes first gear axis 4551, second gear axis 4552, the cone of end tooth wheel 4553, first
Gear 4554 and second bevel gear 4555.Specifically, first gear axis 4551 is rotatably installed in axis hole.First gear axis
4551 first end is equipped with the end tooth wheel 4553 for being engaged in rack gear 454.The second end of first gear axis 4551 is equipped with the first cone tooth
Wheel 4554.Second gear axis 4552 is rotatably installed on the outer wall of containing tube 451.The first end of second gear axis 4552 is equipped with
It is engaged in the second bevel gear 4555 of first bevel gear 4554.The side of the separate distribution box body 1 of support plate 43 offers edge
The threaded hole of the axial direction setting of containing tube 451, the second end of second gear axis 4552 have the internal screw thread phase with threaded hole
The external screw thread of adaptation.Second gear axis 4552 is threadedly connected to threaded hole.
When on fire in distribution box, the high temperature of flame can make the temperature of side plate pass to heat expansion air bag, and then heat expansion gas
Capsule (utilizing the principle expanded with heat and contract with cold) expansion squeezes baffle, so that the second end of baffle towards containing tube is mobile, is connected to baffle
Rack gear by first gear axis be sequentially connected in second gear axis.The rotation of second gear axis, so that support plate direction accommodating
The second end of pipe is mobile, so that articulated slab loses the support of support plate and is turned over downwards, realizes falling in turn for clump weight
It opens meal outlet and carries out dry-chemical fire extinguishing, and then realize occur self-extinguishing after flame in distribution box, realize that nobody looks after automatically
Fire extinguishing, further increases the safety of distribution box.
In some embodiments, first of the axial direction setting along containing tube 451 is formed on the inner wall of containing tube 451
Sliding slot is formed with limited block on baffle 452, and limited block is slidedly arranged in first sliding groove.
In some embodiments, second of the axial direction setting along containing tube 451 is formed on the outer wall of containing tube 451
Sliding slot is connected with gag lever post in support plate 43, and one end of the separate support plate 43 of gag lever post is slidedly arranged in second sliding slot.
In the present embodiment, first gear axis 4551 is rotationally arranged with first bearing, and first bearing is placed in axis hole
It is interior.
In the present embodiment, second gear axis 4552 is rotationally arranged with second bearing, second bearing and containing tube 451
Outer wall between support be connected with connecting rod.
In order to reduce the frictional resistance of hauling rope and side plate, the top of side plate 12 is equipped with fixed pulley 5, and hauling rope 44 is wound in
Fixed pulley 5.
As a kind of preferable embodiment, articulated slab 41 is articulated and connected by hinge in the outer wall of side plate 12, hinge edge
It is horizontally arranged.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach and obtain
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope.
Claims (10)
1. a kind of electric distribution box of self-extinguishing characterized by comprising
Distribution box body offers powder falling mouth at the top of the distribution box body；
For storing the Chu Fenxiang of dry powder, it is installed on the distribution box body, the bottom of the storage powder case, which offers, to be connected to
The meal outlet of the powder falling mouth, it is described storage powder case side wall on be formed with inserted sheet mouth；
For closing the inserted sheet of the meal outlet, movably it is inserted in the inserted sheet mouth；And
The driving device that the meal outlet is opened for inserted sheet described in pull, is installed on the distribution box body.
2. the electric distribution box of self-extinguishing according to claim 1, which is characterized in that the driving device includes:
Articulated slab can be connected to the outside of the distribution box body side wall with turning down；
Clump weight is held on the articulated slab, is connected with hauling rope between the clump weight and the inserted sheet；And
It is used to support the outside that the distribution box body side wall is movably installed in the support plate of the articulated slab.
3. the electric distribution box of self-extinguishing according to claim 2, which is characterized in that the driving device further include:
Containing tube, first end opening of containing tube are connected to the outside of the distribution box body side wall, slide in the containing tube
Equipped with baffle, the side far from the distribution box body side wall of the baffle is connected with rack gear, the pipe of the containing tube
Wall offers axis hole；
Heat expansion air bag is set between the baffle and the outer wall, and the heat expansion air bag pushes the gear after expanded by heating
Plate is moved along the containing tube；
Transmission mechanism is formed with threaded hole in the support plate, and the transmission mechanism transmission connection is in the rack gear and threaded hole
Between, the second end that the transmission mechanism drives the support plate towards the containing tube under baffle promotion is mobile with de-
From the articulated slab.
4. the electric distribution box of self-extinguishing according to claim 3, which is characterized in that the transmission mechanism includes first
Gear shaft and second gear axis, the first gear axis are rotatably installed in the axis hole, and the of the first gear axis
One end, which is equipped with, is engaged in the end tooth wheel of the rack gear, and the second end of the first gear axis is equipped with first bevel gear, and described second
Gear shaft is rotatably installed on the outer wall of the containing tube, and the first end of the second gear axis, which is equipped with, is engaged in described first
The second bevel gear of bevel gear, the second end of the second gear axis are formed with the external screw thread to match with the threaded hole, institute
It states second gear axis and is screwed together in the threaded hole.
5. the electric distribution box of self-extinguishing according to claim 4, which is characterized in that shape on the inner wall of the containing tube
At the first sliding groove for having the axial direction setting along the containing tube, it is formed with limited block on the baffle, the limited block is sliding
In the first sliding groove.
6. the electric distribution box of self-extinguishing according to claim 4, which is characterized in that shape on the outer wall of the containing tube
At the second sliding slot for having the axial direction setting along the containing tube, gag lever post, the gag lever post are connected in the support plate
Be slidedly arranged in the second sliding slot far from one end of the support plate.
7. the electric distribution box of self-extinguishing according to claim 4, which is characterized in that the first gear axis can be rotated
Ground is arranged with first bearing, and the first bearing is placed in the axis hole.
8. the electric distribution box of self-extinguishing according to claim 4, which is characterized in that the second gear axis can be rotated
Ground is arranged with second bearing, and support is connected with connecting rod between the second bearing and the outer wall of the containing tube.
9. the electric distribution box of self-extinguishing according to claim 2, which is characterized in that the top of the side plate is equipped with fixed
Pulley, the hauling rope are wound in the fixed pulley.
10. the electric distribution box of self-extinguishing according to claim 2, which is characterized in that the articulated slab passes through hinge
It is articulated and connected in the outer wall of the distribution box body side wall, the hinge is horizontally disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910414843.9A CN110034492B (en) | 2019-05-17 | 2019-05-17 | Automatic fire extinguishing electric distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910414843.9A CN110034492B (en) | 2019-05-17 | 2019-05-17 | Automatic fire extinguishing electric distribution box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110034492A true CN110034492A (en) | 2019-07-19 |
| CN110034492B CN110034492B (en) | 2024-05-10 |
Family
ID=67242661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910414843.9A Active CN110034492B (en) | 2019-05-17 | 2019-05-17 | Automatic fire extinguishing electric distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110034492B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029915A (en) * | 2019-12-25 | 2020-04-17 | 张燕 | Fire-extinguishing protection power distribution cabinet |
| CN111431054A (en) * | 2020-05-11 | 2020-07-17 | 洪丽燕 | Electrical cabinet with automatic fire extinguishing function and use method |
| CN112460776A (en) * | 2020-11-26 | 2021-03-09 | 合肥佳华环境工程科技有限公司 | Multifunctional biological pollutant industrial environment-friendly equipment |
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| JP2004033384A (en) * | 2002-07-02 | 2004-02-05 | Ind:Kk | Indoor equipment for automatic fire extinguishing |
| CN205489039U (en) * | 2015-11-30 | 2016-08-17 | 国网江西省电力公司上饶供电分公司 | Take switch box of function of putting out a fire |
| CN207338915U (en) * | 2017-09-18 | 2018-05-08 | 江西明正智能电气有限公司 | One kind fire prevention power distribution cabinet |
| CN207484726U (en) * | 2017-10-30 | 2018-06-12 | 郑靓 | A kind of engine firewall for building |
| CN109659833A (en) * | 2018-12-21 | 2019-04-19 | 广东创瑜机电工程有限公司 | A kind of intelligent distribution box Internet-based monitoring and control method |
| CN209747909U (en) * | 2019-05-17 | 2019-12-06 | 上海中建东孚投资发展有限公司 | Electrical safety distribution box |
-
2019
- 2019-05-17 CN CN201910414843.9A patent/CN110034492B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004033384A (en) * | 2002-07-02 | 2004-02-05 | Ind:Kk | Indoor equipment for automatic fire extinguishing |
| CN205489039U (en) * | 2015-11-30 | 2016-08-17 | 国网江西省电力公司上饶供电分公司 | Take switch box of function of putting out a fire |
| CN207338915U (en) * | 2017-09-18 | 2018-05-08 | 江西明正智能电气有限公司 | One kind fire prevention power distribution cabinet |
| CN207484726U (en) * | 2017-10-30 | 2018-06-12 | 郑靓 | A kind of engine firewall for building |
| CN109659833A (en) * | 2018-12-21 | 2019-04-19 | 广东创瑜机电工程有限公司 | A kind of intelligent distribution box Internet-based monitoring and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029915A (en) * | 2019-12-25 | 2020-04-17 | 张燕 | Fire-extinguishing protection power distribution cabinet |
| CN111029915B (en) * | 2019-12-25 | 2021-04-06 | 张燕 | Fire-extinguishing protection power distribution cabinet |
| CN111431054A (en) * | 2020-05-11 | 2020-07-17 | 洪丽燕 | Electrical cabinet with automatic fire extinguishing function and use method |
| CN112460776A (en) * | 2020-11-26 | 2021-03-09 | 合肥佳华环境工程科技有限公司 | Multifunctional biological pollutant industrial environment-friendly equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110034492B (en) | 2024-05-10 |
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