CN113058181A - Aerosol extinguishing device for switch cabinet - Google Patents
Aerosol extinguishing device for switch cabinet Download PDFInfo
- Publication number
- CN113058181A CN113058181A CN202110468549.3A CN202110468549A CN113058181A CN 113058181 A CN113058181 A CN 113058181A CN 202110468549 A CN202110468549 A CN 202110468549A CN 113058181 A CN113058181 A CN 113058181A
- Authority
- CN
- China
- Prior art keywords
- fire extinguishing
- aerosol fire
- switch cabinet
- spring
- aerosol
- 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.)
- Pending
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Classifications
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- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- 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
- A62C37/40—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 electric connection between sensor and actuator
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- 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
Abstract
The invention discloses an aerosol fire extinguishing device for a switch cabinet, which comprises a cabinet body, a shell, an aerosol fire extinguisher, a limiting mechanism, a buffering mechanism and a fire extinguishing mechanism, wherein the shell is arranged in the cabinet body; the limiting mechanism comprises a moving plate, a U-shaped connecting piece and a roller; the buffer mechanism comprises a rubber column, a first spring and a telescopic column; the fire extinguishing mechanism comprises a smoke sensing module, a temperature sensing module, a main control module and an execution module. Has the advantages that: the shell is limited by the limiting mechanism, so that the shell is prevented from shaking left and right; through the arranged buffer mechanism, the aerosol fire extinguisher can be buffered and protected when the fire extinguishing device is in collision during transportation or placement; through the fire extinguishing mechanism, when short circuit occurs in the switch cabinet and the switch cabinet catches fire, smoke or temperature reaches about 170 ℃, aerosol is automatically sprayed out to achieve the effect of extinguishing fire.
Description
Technical Field
The invention relates to the technical field of aerosol fire extinguishing, in particular to an aerosol fire extinguishing device for a switch cabinet.
Background
The aerosol type fire extinguishing agent is a kind of fire extinguishing agent developed recently in the field of fire extinguishing, and it forms a great amount of aerosol gas to submerge the protected area after the fire extinguishing agent burns and reacts, thus achieving the goal of fire extinguishing. The hot aerosol fire extinguishing device is a novel fire extinguishing device, and fire extinguishing aerosol generated after the fire extinguishing device is started has the characteristics of no toxicity, no loss to atmospheric ozone layer, high fire extinguishing efficiency and the like. The electronic equipment, the house and the like can be protected by using the hot aerosol fire extinguishing device, and the property safety of people can be guaranteed in case of fire.
Hot aerosol extinguishing device receives external force easily and takes place to damage in the transportation or place in the cubical switchboard, can let hot aerosol medicament take place to react even if the impact is too big, and the consequence can not imagine, lacks stop gear when the box is placed simultaneously, also brings certain potential safety hazard equally.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention aims to provide an aerosol fire extinguishing device for a switch cabinet, which solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: an aerosol fire extinguishing device for a switch cabinet comprises a cabinet body, a shell, an aerosol fire extinguisher, a limiting mechanism, a buffer mechanism and a fire extinguishing mechanism, wherein the shell is arranged in the cabinet body, the aerosol fire extinguisher is arranged in the shell, a bottom plate is arranged in the shell, sliding grooves are formed in two sides in the cabinet body, two ends of the bottom plate are arranged in the sliding grooves in a sliding mode, the bottom plate is matched with the sliding grooves in shape and size, the aerosol fire extinguisher is fixed on the bottom plate through bolts, buffer foam layers are arranged at two ends in the shell, which are close to the aerosol fire extinguisher, openings are formed in two sides outside the cabinet body, the openings are two, threaded holes are further formed in two sides outside the cabinet body, and the threaded holes are arranged between;
the limiting mechanism comprises a moving plate, a U-shaped connecting piece and a roller;
the buffer mechanism comprises a rubber column, a first spring and a telescopic column;
the fire extinguishing mechanism comprises a smoke sensing module, a temperature sensing module, a main control module and an execution module.
Furthermore, stop gear's movable plate shape is "U" type, the one end of movable plate is respectively through corresponding opening, circular spout has been seted up in the other end of movable plate, the welding has U type connecting piece on the other end of movable plate, U type connecting piece is two from top to bottom, U type connecting piece one end is provided with the gyro wheel, the gyro wheel rotates with U type connecting piece through the pivot that sets up and is connected.
Furthermore, stop gear still includes changes handle, lead screw and carousel, stop gear's commentaries on classics is set up in screw hole department, it has the lead screw to change one end welding, the lead screw other end passes through the screw hole, the lead screw passes through threaded connection with the screw hole, the lead screw other end lets in circular spout, the carousel of lead screw other end welding and circular spout shape size looks adaptation.
Further, buffer gear's rubber post top is fixed in the bottom plate bottom, rubber post bottom is fixed on spout bottom inner wall, the cover has first spring on the rubber post, first spring both ends respectively with bottom plate and spout contact.
Further, the internal bottom welding of cabinet has first hollow section of thick bamboo, first hollow section of thick bamboo is two of symmetry, the one end welding of first hollow section of thick bamboo has the hollow section of thick bamboo of second, it is provided with the hollow section of thick bamboo of third to slide in the hollow section of thick bamboo of second, buffer gear's flexible post one end slides and arranges in the hollow section of thick bamboo of third.
Furthermore, the other end of flexible post leads to out first hollow section of thick bamboo, the other end of flexible post is the inclined plane, flexible post inclined plane is served and is provided with the second spliced pole, the welding of second spliced pole top is in the bottom plate bottom.
Furthermore, buffer gear still includes second spring and third spring, buffer gear's second spring one end welding is on flexible post, the second spring other end welding is on the hollow section of thick bamboo one side inner wall of third.
Furthermore, a first connecting column is welded at one outer end of the third hollow cylinder, one end of a third spring of the buffer mechanism is sleeved on the first connecting column, and the other end of the third spring is welded on the inner wall of one side of the second hollow cylinder.
Furthermore, the output end of the smoke sensing module of the fire extinguishing mechanism is electrically connected with the input end of the main control module, and the output shaft of the temperature sensing module of the fire extinguishing mechanism is electrically connected with the input end of the main control module.
Furthermore, the output end of the main control module is electrically connected with the input end of the execution module, and the output end of the execution module is electrically connected with the input end of the aerosol fire extinguisher.
Compared with the prior art, the invention has the following beneficial effects:
(1) the shell is limited by the limiting mechanism, so that the shell is prevented from shaking left and right, the use is safe and reliable, and the disassembly and the assembly are convenient;
(2) through the arranged buffer mechanism, the buffer foam layer, the first spring, the second spring and the third spring can play a role in buffering and protecting the aerosol fire extinguisher when the fire extinguishing device is in collision during transportation or placement;
(3) through the fire extinguishing mechanism, when short circuit occurs in the switch cabinet and the switch cabinet catches fire, smoke or temperature reaches about 170 ℃, aerosol is automatically sprayed out to achieve the effect of extinguishing fire.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of an aerosol fire extinguishing apparatus for a switchgear according to an embodiment of the present invention;
FIG. 2 is an enlarged view at A of FIG. 1 according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a system of an aerosol fire extinguishing apparatus for a switch cabinet according to an embodiment of the invention.
Reference numerals:
1. a cabinet body; 2. a housing; 3. a base plate; 4. a chute; 5. aerosol fire extinguishers; 6. a cushioning foam layer; 7. an opening; 8. a threaded hole; 9. moving the plate; 10. a circular chute; 11. a U-shaped connecting piece; 12. a roller; 13. a rotating shaft; 14. turning a handle; 15. a screw rod; 16. a turntable; 17. a rubber column; 18. a first spring; 19. a first hollow cylinder; 20. a second hollow cylinder; 21. a third hollow cylinder; 22. a telescopic column; 23. a second spring; 24. a first connecting column; 25. a third spring; 26. a second connecting column; 27. a smoke sensor; 28. a temperature sensing module; 29. a main control module; 30. and executing the module.
Detailed Description
The invention is further described with reference to the following drawings and detailed description:
referring to fig. 1-3, the aerosol fire extinguishing device for the switch cabinet according to the embodiment of the invention comprises a cabinet body 1, a housing 2, an aerosol fire extinguisher 5, a limiting mechanism, a buffering mechanism and a fire extinguishing mechanism, wherein the housing 2 is arranged in the cabinet body 1, the aerosol fire extinguisher 5 is arranged in the housing 2, a bottom plate 3 is arranged in the housing 2, sliding grooves 4 are respectively arranged at two sides in the cabinet body 1, two ends of the bottom plate 3 are slidably arranged in the sliding grooves 4, the shape and the size of the bottom plate 3 are matched with those of the sliding grooves 4, the aerosol fire extinguisher 5 is fixed on the bottom plate 3 through bolts, a buffering foam layer 6 is arranged at a position close to the aerosol fire extinguisher 5 at two ends in the housing 2, openings 7 are respectively arranged at two outer sides of the cabinet body 1, the openings 7 are two-up and-down openings 8 are also arranged, the threaded hole 8 is arranged between the two openings 7;
the limiting mechanism comprises a moving plate 9, a U-shaped connecting piece 11 and a roller 12;
the buffer mechanism comprises a rubber column 17, a first spring 18 and a telescopic column 22;
the fire extinguishing mechanism comprises a smoke sensing module 27, a temperature sensing module 28, a main control module 29 and an execution module 30.
Through the scheme of the invention, the movable plate 9 of the limiting mechanism is U-shaped, one end of the movable plate 9 passes through the corresponding opening 7, the other end of the movable plate 9 is internally provided with the circular chute 10, the other end of the movable plate 9 is welded with the U-shaped connecting piece 11, the U-shaped connecting piece 11 is divided into an upper part and a lower part, one end of the U-shaped connecting piece 11 is provided with the roller 12, the roller 12 is rotatably connected with the U-shaped connecting piece 11 through the arranged rotating shaft 13, the limiting mechanism further comprises the rotating handle 14, the screw rod 15 and the turntable 16, the rotating handle 14 of the limiting mechanism is arranged at the threaded hole 8, one end of the rotating handle 14 is welded with the screw rod 15, the other end of the screw rod 15 passes through the threaded hole 8, the screw rod 15 is connected with the threaded hole 8 through threads, the other end of the screw rod 15 is inserted into the circular chute 10, the other end of, carry on spacingly to shell 2, avoid rocking about shell 2, use safe and reliable, also make things convenient for the dismouting simultaneously.
Through the above scheme of the invention, the top end of the rubber column 17 of the buffer mechanism is fixed at the bottom of the bottom plate 3, the bottom end of the rubber column 17 is fixed on the inner wall of the bottom of the sliding chute 4, the rubber column 17 is sleeved with the first spring 18, two ends of the first spring 18 are respectively contacted with the bottom plate 3 and the sliding chute 4, the bottom of the cabinet body 1 is welded with the first hollow cylinder 19, the number of the first hollow cylinders 19 is two, one end of the first hollow cylinder 19 is welded with the second hollow cylinder 20, the second hollow cylinder 20 is slidably provided with the third hollow cylinder 21, one end of the telescopic column 22 of the buffer mechanism is slidably arranged in the third hollow cylinder 21, the other end of the telescopic column 22 is communicated with the first hollow cylinder 19, the other end of the telescopic column 22 is an inclined plane, the inclined plane end of the telescopic column 22 is provided with the second connecting column 26, the top end of the second connecting column 26 is welded at the bottom of the bottom plate 3, the buffer mechanism further comprises, buffer gear's second spring 23 one end welding is on flexible post 22, the welding of the second spring 22 other end is on the hollow section of thick bamboo 21 one side inner wall of third, the outer one end welding of the hollow section of thick bamboo 21 of third has first spliced pole 24, buffer gear's third spring 25 pot head is on first spliced pole 24, the other end welding of third spring 25 is on the hollow section of thick bamboo 20 one side inner wall of second, can meet the collision and can play the effect of buffering protection to aerosol fire extinguisher 5 when extinguishing device transports or places.
According to the scheme of the invention, the output end of the smoke sensing module 27 of the fire extinguishing mechanism is electrically connected with the input end of the main control module 29, the output shaft of the temperature sensing module 28 of the fire extinguishing mechanism is electrically connected with the input end of the main control module 29, the output end of the main control module 29 is electrically connected with the input end of the execution module 30, the output end of the execution module 30 is electrically connected with the input end of the aerosol fire extinguisher 5, and when the fire is caused by a short circuit in the switch cabinet and smoke or temperature reaches about 170 ℃, the aerosol is automatically sprayed out to achieve the fire extinguishing effect.
When the device is used specifically, the rotating handle 14 is rotated, the rotating handle 14 rotates to drive the screw rod 15 to rotate, so that the screw rod 15 and the moving plate 9 are close to the shell 2 relative to the threaded hole 8 until the roller 12 is contacted with the shell 2 to limit the shell 2, the shell 2 is prevented from shaking left and right, the device is safe and reliable to use, and meanwhile, the device is convenient to disassemble and assemble; when the fire extinguishing device collides with the shell 2 and shakes up and down, the rubber column 17 and the first spring 18 are extruded through the bottom plate 3, the telescopic column 22 is extruded through the second connecting column 26, so that the second spring 23 and the third spring 25 are extruded, and the shell 2 is filled with the buffer foam layer 6, so that the aerosol fire extinguisher can be buffered and protected when the fire extinguishing device is transported or placed in case of collision; when the switch cabinet is ignited due to short circuit, and smoke or temperature reaches about 170 ℃, aerosol is automatically sprayed out to achieve the effect of fire extinguishing.
The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The aerosol fire extinguishing device for the switch cabinet is characterized by comprising a cabinet body (1), a shell (2), an aerosol fire extinguisher (5), a limiting mechanism, a buffer mechanism and a fire extinguishing mechanism, wherein the shell (2) is arranged in the cabinet body (1), the aerosol fire extinguisher (5) is arranged in the shell (2), a bottom plate (3) is arranged in the shell (2), sliding grooves (4) are formed in two sides in the cabinet body (1), two ends of the bottom plate (3) are arranged in the sliding grooves (4) in a sliding manner, the bottom plate (3) is matched with the sliding grooves (4) in shape and size, the aerosol fire extinguisher (5) is fixed on the bottom plate (3) through bolts, buffer foam layers (6) are arranged at the positions, close to the aerosol fire extinguisher (5), of two ends in the shell (2), openings (7) are formed in two sides outside the cabinet body (1), the two openings (7) are arranged up and down, threaded holes (8) are further formed in the two outer sides of the cabinet body (1), and the threaded holes (8) are arranged between the two openings (7);
the limiting mechanism comprises a moving plate (9), a U-shaped connecting piece (11) and a roller (12);
the buffer mechanism comprises a rubber column (17), a first spring (18) and a telescopic column (22);
the fire extinguishing mechanism comprises a smoke sensing module (27), a temperature sensing module (28), a main control module (29) and an execution module (30).
2. The aerosol fire extinguishing device for the switch cabinet as recited in claim 1, wherein the moving plate (9) of the limiting mechanism is shaped like a "U", one end of the moving plate (9) passes through the corresponding opening (7), a circular sliding groove (10) is formed in the other end of the moving plate (9), a U-shaped connecting piece (11) is welded on the other end of the moving plate (9), the U-shaped connecting piece (11) is divided into an upper portion and a lower portion, a roller (12) is arranged at one end of the U-shaped connecting piece (11), and the roller (12) is rotatably connected with the U-shaped connecting piece (11) through a rotating shaft (13).
3. The aerosol fire extinguishing device for the switch cabinet as recited in claim 2, wherein the limiting mechanism further comprises a rotating handle (14), a screw rod (15) and a rotating disc (16), the rotating handle (14) of the limiting mechanism is arranged at the threaded hole (8), the screw rod (15) is welded at one end of the rotating handle (14), the other end of the screw rod (15) passes through the threaded hole (8), the screw rod (15) is in threaded connection with the threaded hole (8), the other end of the screw rod (15) is communicated into the circular sliding groove (10), and the rotating disc (16) matched with the circular sliding groove (10) in shape and size is welded at the other end of the screw rod (15).
4. The aerosol fire extinguishing device for the switch cabinet as claimed in claim 1, wherein the top end of the rubber column (17) of the buffer mechanism is fixed at the bottom of the bottom plate (3), the bottom end of the rubber column (17) is fixed on the inner wall of the bottom of the sliding chute (4), the rubber column (17) is sleeved with a first spring (18), and two ends of the first spring (18) are respectively contacted with the bottom plate (3) and the sliding chute (4).
5. The aerosol fire extinguishing device for the switch cabinet as claimed in claim 1, wherein a first hollow cylinder (19) is welded at the bottom of the cabinet body (1), the number of the first hollow cylinders (19) is two, a second hollow cylinder (20) is welded at one end of the first hollow cylinder (19), a third hollow cylinder (21) is slidably arranged in the second hollow cylinder (20), and one end of a telescopic column (22) of the buffer mechanism is slidably arranged in the third hollow cylinder (21).
6. The aerosol fire extinguishing device for the switch cabinet as recited in claim 5, wherein the other end of the telescopic column (22) is connected to the first hollow cylinder (19), the other end of the telescopic column (22) is a slope, a second connecting column (26) is arranged at the slope end of the telescopic column (22), and the top end of the second connecting column (26) is welded at the bottom of the bottom plate (3).
7. The aerosol fire extinguishing apparatus for the switch cabinet as recited in claim 1, wherein the damping mechanism further comprises a second spring (23) and a third spring (25), one end of the second spring (23) of the damping mechanism is welded on the telescopic column (22), and the other end of the second spring (22) is welded on one side inner wall of the third hollow cylinder (21).
8. The aerosol fire extinguishing apparatus for the switch cabinet as recited in claim 7, wherein a first connecting column (24) is welded to an outer end of the third hollow cylinder (21), one end of a third spring (25) of the damping mechanism is sleeved on the first connecting column (24), and the other end of the third spring (25) is welded to an inner wall of one side of the second hollow cylinder (20).
9. The aerosol fire extinguishing device for the switch cabinet as recited in claim 1, characterized in that the output end of the smoke sensing module (27) of the fire extinguishing mechanism is electrically connected with the input end of the main control module (29), and the output end of the temperature sensing module (28) of the fire extinguishing mechanism is electrically connected with the input end of the main control module (29).
10. The aerosol fire extinguishing device for the switch cabinet as recited in claim 9, characterized in that the output end of the main control module (29) is electrically connected with the input end of the execution module (30), and the output end of the execution module (30) is electrically connected with the input end of the aerosol fire extinguisher (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110468549.3A CN113058181A (en) | 2021-04-28 | 2021-04-28 | Aerosol extinguishing device for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110468549.3A CN113058181A (en) | 2021-04-28 | 2021-04-28 | Aerosol extinguishing device for switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113058181A true CN113058181A (en) | 2021-07-02 |
Family
ID=76568282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110468549.3A Pending CN113058181A (en) | 2021-04-28 | 2021-04-28 | Aerosol extinguishing device for switch cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN113058181A (en) |
Citations (8)
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| CN102426088A (en) * | 2011-08-27 | 2012-04-25 | 宁波能林消防器材有限公司 | Vibratory testing machine for fire extinguisher |
| US20160346577A1 (en) * | 2013-12-27 | 2016-12-01 | Fireaway Inc. | Aerosol fire extinguishing device for installation on moving object, and aerosol fire extinguishing agent for use in same |
| CN107869548A (en) * | 2017-12-11 | 2018-04-03 | 高邮市迅达工程机械集团有限公司 | A kind of mine excavator with cabinet damping device |
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| CN209500584U (en) * | 2018-11-28 | 2019-10-18 | 广州兴进消防设备有限公司 | A kind of condensed aerosol fire extinguishing device |
| CN210033459U (en) * | 2019-04-09 | 2020-02-07 | 郑州施利乐机械有限公司 | Wet spraying machine arm support device |
| CN211705680U (en) * | 2018-11-06 | 2020-10-20 | 湖北工业大学 | Fire extinguisher placing box |
| CN211902081U (en) * | 2020-02-19 | 2020-11-10 | 天津龙驰机械制造股份有限公司 | Efficient duplex head air compressor |
-
2021
- 2021-04-28 CN CN202110468549.3A patent/CN113058181A/en active Pending
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| CN102426088A (en) * | 2011-08-27 | 2012-04-25 | 宁波能林消防器材有限公司 | Vibratory testing machine for fire extinguisher |
| US20160346577A1 (en) * | 2013-12-27 | 2016-12-01 | Fireaway Inc. | Aerosol fire extinguishing device for installation on moving object, and aerosol fire extinguishing agent for use in same |
| CN107869548A (en) * | 2017-12-11 | 2018-04-03 | 高邮市迅达工程机械集团有限公司 | A kind of mine excavator with cabinet damping device |
| CN108785693A (en) * | 2018-06-25 | 2018-11-13 | 郭青华 | A kind of moveable articles for daily use disinfection cabinet |
| CN211705680U (en) * | 2018-11-06 | 2020-10-20 | 湖北工业大学 | Fire extinguisher placing box |
| CN209500584U (en) * | 2018-11-28 | 2019-10-18 | 广州兴进消防设备有限公司 | A kind of condensed aerosol fire extinguishing device |
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Application publication date: 20210702 |