CN113304422A - Lithium battery fire extinguishing device - Google Patents
Lithium battery fire extinguishing device Download PDFInfo
- Publication number
- CN113304422A CN113304422A CN202110619682.4A CN202110619682A CN113304422A CN 113304422 A CN113304422 A CN 113304422A CN 202110619682 A CN202110619682 A CN 202110619682A CN 113304422 A CN113304422 A CN 113304422A
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- frame
- fire extinguishing
- supporting mechanism
- spraying
- 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
Links
Images
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
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
- A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a lithium battery fire extinguishing device which comprises a supporting mechanism arranged on the outer side of a lithium battery, wherein a water bag is arranged on the upper side of the supporting mechanism, a spraying mechanism for spraying water in the water bag is arranged on the supporting mechanism above the lithium battery, and the spraying mechanism is connected with the supporting mechanism; the supporting mechanism comprises a frame, a surrounding plate is arranged on the inner side of the upper end of the frame, a bottom plate is arranged at the lower end of the surrounding plate, a cover plate is connected to the upper end of the surrounding plate, and leakage holes are formed in the bottom plate at intervals. According to the invention, the water bag is supported and fixed through the bottom plate of the supporting mechanism, so that part of the bag body of the water bag leaks at the leakage hole, after the lithium battery is ignited, heat is upwards concentrated and gathered at the leakage hole, the bag body of the water bag is exploded, water in the water bag flows downwards through the leakage hole, the water is diffused towards the periphery through the spraying mechanism, the lithium battery is subjected to fire extinguishing treatment, the fire extinguishing efficiency and quality are improved, and the accident spread range is reduced.
Description
Technical Field
The invention relates to the technical field of lithium battery fire extinguishing, in particular to a lithium battery fire extinguishing device.
Background
The existing lithium battery pack or lithium battery cabinet has almost no automatic fire extinguishing function, when the lithium battery is on fire due to overhigh internal temperature caused by reasons such as overcharge and discharge, puncturing of a polar plate in the battery and the like, or when the lithium battery is on fire due to external factors such as circuit aging, serious abrasion and the like, a worker can not timely know the firing information of the lithium battery, so that the best fire extinguishing opportunity is easily missed, and serious safety accidents are caused.
Disclosure of Invention
The invention aims to solve the problems and provide a lithium battery fire extinguishing device.
The invention realizes the purpose through the following technical scheme:
a lithium battery fire extinguishing device comprises a supporting mechanism arranged on the outer side of a lithium battery, wherein a water bag is arranged on the upper side of the supporting mechanism, a spraying mechanism for spraying water in the water bag is arranged above the lithium battery on the supporting mechanism, and the spraying mechanism is connected with the supporting mechanism;
the supporting mechanism comprises a frame, a surrounding plate is arranged on the inner side of the upper end of the frame, a bottom plate is arranged at the lower end of the surrounding plate, a cover plate is connected to the upper end of the surrounding plate, leak holes are formed in the bottom plate at intervals, a protective sleeve is arranged in each leak hole, and heat-resistant glass is arranged at the hollow position of the periphery of the frame.
Further setting: the apron front end face is provided with the ladder groove, the apron upper end is provided with the handle, the apron with bounding wall hinge connection.
According to the arrangement, the cover plate can be opened and closed conveniently through the lifting handle, and the water bag can be added and placed conveniently.
Further setting: the spraying mechanism comprises a first connecting frame arranged at the lower end of the bottom plate, a rotary table is arranged at the lower end of the first connecting frame, and blades are uniformly arranged on the outer ring of the rotary table in the circumferential direction.
So set up, make first link is right the revolving stage is connected fixedly, through the blade is to the fire extinguishing water diffusion that falls.
Further setting: the blade is welded with the rotary table, the rotary table is rotatably connected with the first connecting frame, and the first connecting frame is welded with the bottom plate.
So set up, improve first link with the fastness of connection of bottom plate makes the blade promotes rotatoryly through the fire extinguishing water that falls.
Further setting: the spraying mechanism comprises a spraying frame, the top of the spraying frame is fixedly connected and communicated with an external thread cylinder in threaded connection with the protective sleeve, the bottom of an inner cavity of the external thread cylinder is fixedly connected with a glass mounting seat, the bottom of the glass mounting seat is fixedly connected with a glass body, and the bottom of the spraying frame is fixedly connected with a water splashing disc.
So set up, through the fire with the glass body back of bursting, the glass body drops with the glass mount pad, and water falls along the lag, with splash the dish after contact, sputters rapidly and opens, carries out regional the expansion to the water of putting out a fire.
Further setting: the leak hole is the back taper, the bottom plate with the bounding wall welding, the bounding wall with the frame welding.
According to the arrangement, the water bag is stored in the sealing area formed by the bottom plate and the enclosing plate, after the lithium battery is ignited by the leakage hole, heat is concentrated upwards, the water bag is thermally exploded, and water in the water bag flows downwards.
Compared with the prior art, the invention has the following beneficial effects:
the bottom plate through supporting mechanism supports the water bag fixedly, makes the naked hourglass of bag body of part water bag in small opening department, after the lithium cell catches fire, the heat upwards concentrates, and the gathering is in small opening department, explodes the water bag body, makes the water liquid in the water bag pass through the small opening and flows down, through spraying the mechanism with water to the week diffusion, puts out a fire to the lithium cell and handles, has improved fire extinguishing efficiency and quality, has reduced accident wave and scope.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a lithium battery fire extinguishing apparatus according to the present invention;
FIG. 2 is a schematic view of a first structure of a lithium battery fire extinguishing apparatus according to the present invention after removing a water bag;
FIG. 3 is a schematic diagram of a second structure of the lithium battery fire extinguishing apparatus according to the present invention after the water bag is removed;
FIG. 4 is a schematic structural view of embodiment 1 of a lithium battery fire extinguishing apparatus according to the present invention;
FIG. 5 is an enlarged partial schematic view of the spray mechanism of FIG. 4;
fig. 6 is a schematic sectional view of a spraying mechanism of embodiment 1 of a lithium battery fire extinguishing apparatus according to the present invention;
FIG. 7 is a schematic structural view of embodiment 2 of a lithium battery fire extinguishing apparatus according to the present invention;
fig. 8 is a partially enlarged structural schematic view of a spraying mechanism of embodiment 2 of the lithium battery fire extinguishing apparatus according to the present invention.
The reference numerals are explained below:
1. a lithium battery; 2. a support mechanism; 21. a frame; 22. enclosing plates; 23. a cover plate; 24. a handle; 25. a stepped groove; 26. a leak hole; 27. a protective sleeve; 28. a bottom plate, 29, pyrex; 3. a water bag; 4. a spraying mechanism; 41. a first connecting frame; 42. a turntable; 43. a blade; 44. a spray frame; 45. an external thread cylinder 46 and a glass mounting seat; 47. a glass body; 48. a splash plate.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be further described with reference to the accompanying drawings in which:
example 1
As shown in fig. 1-6, a lithium battery fire extinguishing apparatus comprises a supporting mechanism 2 arranged outside a lithium battery 1, a water bag 3 is arranged on the upper side of the supporting mechanism 2, a spraying mechanism 4 for spraying water in the water bag 3 is arranged above the lithium battery 1 on the supporting mechanism 2, and the spraying mechanism 4 is connected with the supporting mechanism 2;
the supporting mechanism 2 comprises a frame 21, a surrounding plate 22 is arranged on the inner side of the upper end of the frame 21, a bottom plate 28 is arranged at the lower end of the surrounding plate 22, a chamber for placing the water bag 3 is formed by the bottom plate 28 and the surrounding plate 22, a cover plate 23 is connected to the upper end of the surrounding plate 22, leak holes 26 are arranged on the bottom plate 28 at intervals, and a protecting sleeve 27 is arranged in the leak holes 26 to prevent the water bag 3 from being damaged by contact with the leak holes 26 on the bottom plate 28; the hollow part of the periphery of the frame 21 is provided with heat-resistant glass 29.
Preferably: a stepped groove 25 is formed in the front end face of the coaming 22, a handle 24 is arranged at the upper end of the cover plate 23, the cover plate 23 is hinged with the coaming 22, the cover plate 23 can be conveniently opened and closed through the handle 24, and the water bag 3 can be conveniently added and placed; the spraying mechanism 4 comprises a first connecting frame 41 arranged at the lower end of the bottom plate 28, a rotary table 42 is arranged at the lower end of the first connecting frame 41, blades 43 are uniformly arranged on the outer ring of the rotary table 42 in the circumferential direction, so that the first connecting frame 41 is used for connecting and fixing the rotary table 42, and the falling fire extinguishing water is diffused through the blades 43; the blades 43 are welded with the rotary table 42, the rotary table 42 is rotatably connected with the first connecting frame 41, the first connecting frame 41 is welded with the bottom plate 28, the connection firmness of the first connecting frame 41 and the bottom plate 28 is improved, and the blades 43 are driven to rotate by falling fire extinguishing water; the leak 26 is in an inverted cone shape, the bottom plate 28 is welded with the surrounding plate 22, the surrounding plate 22 is welded with the frame 21, the water bag 3 is stored in the sealing area formed by the bottom plate 28 and the surrounding plate 22, after the lithium battery 1 is ignited by the leak 26, heat is concentrated upwards, the water bag 3 is thermally exploded, and water in the water bag 3 flows downwards.
Example 2
As shown in fig. 1-3 and 7-8, a lithium battery fire extinguishing apparatus comprises a supporting mechanism 2 arranged outside a lithium battery 1, a water bag 3 is arranged on the upper side of the supporting mechanism 2, a spraying mechanism 4 for spraying water in the water bag 3 is arranged above the lithium battery 1 on the supporting mechanism 2, and the spraying mechanism 4 is connected with the supporting mechanism 2;
the supporting mechanism 2 comprises a frame 21, a surrounding plate 22 is arranged on the inner side of the upper end of the frame 21, a bottom plate 28 is arranged at the lower end of the surrounding plate 22, a cavity for placing the water bag 3 is formed by the bottom plate 28 and the surrounding plate 22, a cover plate 23 is connected to the upper end of the surrounding plate 22, leak holes 26 are formed in the bottom plate 28 at intervals, a protecting sleeve 27 is arranged in the leak holes 26, and the water bag 3 is prevented from being damaged by the contact with the leak holes 26 in the bottom plate 28.
Preferably: a stepped groove 25 is formed in the front end face of the coaming 22, a handle 24 is arranged at the upper end of the cover plate 23, the cover plate 23 is hinged with the coaming 22, the cover plate 23 can be conveniently opened and closed through the handle 24, and the water bag 3 can be conveniently added and placed; the spraying mechanism 4 comprises a spraying frame 44, the top of the spraying frame 44 is fixedly communicated with an external thread cylinder 45 which is in threaded connection with the protective sleeve 27, the bottom of the inner cavity of the external thread cylinder 45 is fixedly connected with a glass mounting seat 46, the bottom of the glass mounting seat 46 is fixedly connected with a glass body 47, and the bottom of the spraying frame 44 is fixedly connected with a water splashing disc 48; after the glass body 47 is burned by fire, the glass body 47 and the glass mounting seat 46 fall off, water falls down along the protective sleeve 27 and is rapidly splashed after contacting with the water splashing disc 48, and the area of fire extinguishing water is expanded.
The working principle and the using process of the invention are as follows: the water bag 3 is placed in a cavity formed by the enclosing plate 22 and the bottom plate 28, the cover plate 23 is covered, after the lithium battery 1 is ignited, heat is upwards concentrated and gathered in the leakage hole 26 of the bottom plate 28, when the heat is larger than the bearing capacity of the water bag 3, the water bag 3 is exploded, so that water in the water bag 3 flows downwards through the leakage hole 26, the water rotates under the push of flowing water through the blades 43 of the spraying mechanism 4, or the glass 47 and the glass mounting seat 46 are cracked and fall off, and then the water collides with the water splashing disc 48 to be circumferentially diffused, and the lithium battery 1 is subjected to fire extinguishing treatment.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (6)
1. The utility model provides a lithium cell extinguishing device which characterized in that: the lithium battery pack comprises a supporting mechanism (2) arranged on the outer side of a lithium battery (1), a water bag (3) is arranged on the upper side of the supporting mechanism (2), a spraying mechanism (4) for spraying water in the water bag (3) is arranged above the lithium battery (1) on the supporting mechanism (2), and the spraying mechanism (4) is connected with the supporting mechanism (2);
the supporting mechanism (2) comprises a frame (21), a surrounding plate (22) is arranged on the inner side of the upper end of the frame (21), a bottom plate (28) is arranged at the lower end of the surrounding plate (22), a cover plate (23) is connected to the upper end of the surrounding plate (22), leaking holes (26) are formed in the bottom plate (28) at intervals, a protecting sleeve (27) is arranged in each leaking hole (26), and heat-resistant glass (29) is arranged at the hollow positions of the periphery of the frame (21).
2. The lithium battery fire extinguishing apparatus according to claim 1, wherein: be provided with ladder groove (25) on bounding wall (22) preceding terminal surface, apron (23) upper end is provided with handle (24), apron (23) with bounding wall (22) hinge connection.
3. The lithium battery fire extinguishing apparatus according to claim 1, wherein: the spraying mechanism (4) comprises a first connecting frame (41) arranged at the lower end of the bottom plate (28), a rotary table (42) is arranged at the lower end of the first connecting frame (41), and blades (43) are uniformly arranged on the outer ring of the rotary table (42) in the circumferential direction.
4. The lithium battery fire extinguishing apparatus according to claim 3, wherein: the blade (43) is welded with the rotary table (42), the rotary table (42) is rotatably connected with the first connecting frame (41), and the first connecting frame (41) is welded with the bottom plate (28).
5. The lithium battery fire extinguishing apparatus according to claim 1, wherein: spray mechanism (4) including spraying frame (44), the top rigid coupling intercommunication of spraying frame (44) has an external screw thread section of thick bamboo (45) with lag (27) spiro union, the inner chamber bottom rigid coupling of an external screw thread section of thick bamboo (45) has glass mount pad (46), the bottom rigid coupling of glass mount pad (46) has the glass body (47), the bottom rigid coupling of spraying frame (44) has splash box (48).
6. The lithium battery fire extinguishing apparatus according to claim 4, wherein: the leak hole (26) is the back taper, bottom plate (28) with bounding wall (22) welding, bounding wall (22) with frame (21) welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110619682.4A CN113304422A (en) | 2021-06-03 | 2021-06-03 | Lithium battery fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110619682.4A CN113304422A (en) | 2021-06-03 | 2021-06-03 | Lithium battery fire extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113304422A true CN113304422A (en) | 2021-08-27 |
Family
ID=77377258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110619682.4A Pending CN113304422A (en) | 2021-06-03 | 2021-06-03 | Lithium battery fire extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113304422A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094250A (en) * | 2021-11-22 | 2022-02-25 | 江苏集萃纳米应用技术研究所有限公司 | Lithium ion battery module |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010097836A (en) * | 2008-10-17 | 2010-04-30 | Panasonic Corp | Battery pack, electronic equipment using it as power source, and battery pack case |
| RU2464059C1 (en) * | 2011-09-09 | 2012-10-20 | Олег Савельевич Кочетов | Deluge sprinkler of kochetov |
| CN104258526A (en) * | 2014-10-21 | 2015-01-07 | 王利烨 | Household fireproof explosionproof charging device |
| CN204307247U (en) * | 2014-10-31 | 2015-05-06 | 赵卫东 | A kind of fire demand water shower nozzle |
| CN208097155U (en) * | 2018-02-07 | 2018-11-16 | 中山天贸电池有限公司 | A kind of safe and efficient lithium ion battery burn-in chamber firebreak device |
| CN108923081A (en) * | 2018-06-22 | 2018-11-30 | 安徽省力霸动力锂电池科技有限公司 | A kind of lithium battery fire monitoring system |
| CN109065984A (en) * | 2018-08-13 | 2018-12-21 | 上海纳晓能源科技有限公司 | The safety charging device of battery |
| CN210110902U (en) * | 2019-09-09 | 2020-02-21 | 天津利锋新能源科技有限公司 | Automatic fire extinguishing battery box |
| CN210535709U (en) * | 2019-07-15 | 2020-05-15 | 唐桂紫 | Electric motor car lithium cell protector |
| CN211513212U (en) * | 2019-12-25 | 2020-09-18 | 湖南文理学院 | Lithium ion battery is with firebreak device |
| KR20200120194A (en) * | 2019-04-11 | 2020-10-21 | 이용권 | Automatic Feeding Container of Fire Extinguishing Powder for Lithium Battery |
| CN212347500U (en) * | 2020-03-13 | 2021-01-15 | 中消安科技实业（深圳）有限公司 | Battery box cabin extinguishing device |
| CN212555862U (en) * | 2020-04-29 | 2021-02-19 | 广州阜基信息技术有限公司 | Multifunctional battery charging protection box |
-
2021
- 2021-06-03 CN CN202110619682.4A patent/CN113304422A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010097836A (en) * | 2008-10-17 | 2010-04-30 | Panasonic Corp | Battery pack, electronic equipment using it as power source, and battery pack case |
| RU2464059C1 (en) * | 2011-09-09 | 2012-10-20 | Олег Савельевич Кочетов | Deluge sprinkler of kochetov |
| CN104258526A (en) * | 2014-10-21 | 2015-01-07 | 王利烨 | Household fireproof explosionproof charging device |
| CN204307247U (en) * | 2014-10-31 | 2015-05-06 | 赵卫东 | A kind of fire demand water shower nozzle |
| CN208097155U (en) * | 2018-02-07 | 2018-11-16 | 中山天贸电池有限公司 | A kind of safe and efficient lithium ion battery burn-in chamber firebreak device |
| CN108923081A (en) * | 2018-06-22 | 2018-11-30 | 安徽省力霸动力锂电池科技有限公司 | A kind of lithium battery fire monitoring system |
| CN109065984A (en) * | 2018-08-13 | 2018-12-21 | 上海纳晓能源科技有限公司 | The safety charging device of battery |
| KR20200120194A (en) * | 2019-04-11 | 2020-10-21 | 이용권 | Automatic Feeding Container of Fire Extinguishing Powder for Lithium Battery |
| CN210535709U (en) * | 2019-07-15 | 2020-05-15 | 唐桂紫 | Electric motor car lithium cell protector |
| CN210110902U (en) * | 2019-09-09 | 2020-02-21 | 天津利锋新能源科技有限公司 | Automatic fire extinguishing battery box |
| CN211513212U (en) * | 2019-12-25 | 2020-09-18 | 湖南文理学院 | Lithium ion battery is with firebreak device |
| CN212347500U (en) * | 2020-03-13 | 2021-01-15 | 中消安科技实业（深圳）有限公司 | Battery box cabin extinguishing device |
| CN212555862U (en) * | 2020-04-29 | 2021-02-19 | 广州阜基信息技术有限公司 | Multifunctional battery charging protection box |
Non-Patent Citations (1)
| Title |
|---|
| 孙军田 等: "《固定消防设施操作管理实用手册》", 31 May 2014, 中国人民公安大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094250A (en) * | 2021-11-22 | 2022-02-25 | 江苏集萃纳米应用技术研究所有限公司 | Lithium ion battery module |
| CN114094250B (en) * | 2021-11-22 | 2023-11-21 | 江苏集萃中科纳米科技有限公司 | Lithium ion battery module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113304422A (en) | Lithium battery fire extinguishing device | |
| CN220021335U (en) | Battery case and battery | |
| CN213628204U (en) | Double-arm mechanical hydraulic oil tank | |
| CN111429676A (en) | Oil leakage monitoring system and accident oil pool structure of transformer substation | |
| CN113838640A (en) | Oil-immersed transformer with fire extinguishing function and position adjusting function | |
| CN112687988A (en) | Solar storage battery with low-temperature charging and heating device | |
| CN215440642U (en) | High smelting device of security is used in preparation of alloy resistance wire | |
| CN219303775U (en) | Lithium battery power supply device of electric forklift | |
| CN218993405U (en) | Battery incineration device | |
| CN218010718U (en) | Multifunctional integrated fire preventing and extinguishing device | |
| CN217827634U (en) | Grease collection device and cooking device | |
| CN219818457U (en) | Laser welding visor | |
| CN218819679U (en) | Fire-adjustable and fire-extinguishing fuel-oil lamp | |
| CN217230985U (en) | LED support electroplating bath with residual liquid removing function | |
| CN219713955U (en) | Compatible cylindrical battery toasts compatible anchor clamps | |
| CN217882523U (en) | Fire protection device of distribution transformer | |
| CN210603529U (en) | Liquid weighing device | |
| CN215568234U (en) | High-temperature emergency discharge and automatic explosion venting device for heat storage combustion bed | |
| CN211664668U (en) | Material lifting device for mechanical engineering field | |
| CN213821025U (en) | Automatic tea making machine | |
| CN218827480U (en) | Storage battery cover scalding preventing structure for terminal welding | |
| CN219529130U (en) | Cooling liquid storage device with filtering function | |
| CN219643075U (en) | Lithium battery pack with over-discharge protection | |
| CN216625884U (en) | Video monitoring terminal capable of automatically switching communication network | |
| CN218086748U (en) | Temporary storage box for battery cells with safety problems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210827 |
|
| RJ01 | Rejection of invention patent application after publication |