CN220801780U - Battery package shower nozzle of putting out a fire - Google Patents
Battery package shower nozzle of putting out a fire Download PDFInfo
- Publication number
- CN220801780U CN220801780U CN202322497226.4U CN202322497226U CN220801780U CN 220801780 U CN220801780 U CN 220801780U CN 202322497226 U CN202322497226 U CN 202322497226U CN 220801780 U CN220801780 U CN 220801780U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- core
- liquid inlet
- check
- fire extinguishing
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 25
- 230000000903 blocking effect Effects 0.000 claims description 13
- 230000001629 suppression Effects 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 22
- 239000007921 spray Substances 0.000 abstract description 16
- 239000002360 explosive Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000004146 energy storage Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery pack fire extinguishing nozzle which comprises a first body, a second body and a check mechanism, wherein the first body is connected with the second body in a sealing way; a liquid inlet channel is formed in the first body, an assembling cavity communicated with the liquid inlet channel is formed in the second body, and a nozzle structure communicated with the assembling cavity is arranged at the end part of the second body; the check mechanism is mounted within the assembly chamber. The utility model has the advantages that: the fire extinguishing spray head can be conveniently installed and fixed on the outer wall of the battery pack by using the installation fixing seat, and the nozzle structure faces the inside of the battery pack, so that the fire extinguishing agent sprayed by the fire extinguishing spray head can quickly enter the battery pack to extinguish fire; meanwhile, the check mechanism is arranged, so that the explosive gas or energy in the battery pack can be prevented from being reversely transmitted to the fire extinguishing device through the liquid inlet channel.
Description
[ Field of technology ]
The utility model relates to a spray head, in particular to a battery pack fire extinguishing spray head.
[ Background Art ]
At present, an outdoor energy storage power station mainly uses an energy storage container as a main storage unit, and thousands of lithium ion batteries are stored in the energy storage container. The fire disaster of the lithium ion battery is mainly caused by thermal runaway of the single battery, a great amount of heat is generated by the thermal runaway, meanwhile, chemical reaction in the battery can be accelerated, and if the heat cannot be timely discharged, the fire disaster can be caused in serious cases.
In order to extinguish fire in time when thermal runaway or fire disaster is caused, fire extinguishing devices are arranged in the energy storage container, such as a battery thermal runaway inhibition fire extinguishing device and an energy storage cabinet disclosed in Chinese patent application number CN202222114912.4, and the battery thermal runaway inhibition fire extinguishing device comprises an integrated box, a detection unit, a fire extinguishing unit and a control unit, wherein the detection unit, the fire extinguishing unit and the control unit are positioned in the integrated box; the detection unit is used for monitoring fire parameters; the fire extinguishing unit comprises a liquid storage device, a driving device and a plurality of spray pipes; the driving device is electrically connected with the control unit, and the control unit can control the driving device to start or stop according to the detection signal fed back by the detection unit. However, the existing fire extinguishing device is generally provided with a spray head on the energy storage cabinet, the fire extinguishing agent is difficult to enter the battery pack, and the spray head can not prevent the explosion gas or energy in the battery pack from being reversely transferred to the fire extinguishing device. Accordingly, it is desirable to provide a spray head that can spray fire extinguishing agent into the interior of a battery pack and prevent the reverse transfer of explosive gases or energy from the battery pack to the fire extinguishing device.
[ utility model ]
The utility model aims to solve the technical problem of providing a battery pack fire extinguishing spray head, which can spray fire extinguishing agent into the battery pack and prevent explosion gas or energy in the battery pack from being reversely transferred to the spray head of the fire extinguishing device.
The utility model is realized in the following way: the battery pack fire extinguishing spray head comprises a first body, a second body and a check mechanism, wherein the first body is connected with the second body in a sealing way; a liquid inlet channel is formed in the first body, an assembling cavity communicated with the liquid inlet channel is formed in the second body, a nozzle structure communicated with the assembling cavity is arranged at the end part of the second body, and a mounting fixing seat is arranged around the periphery of the nozzle structure in a surrounding mode; the check mechanism is mounted within the assembly chamber.
Further, the check mechanism comprises a spring, a check core and a first sealing ring; the check core is arranged in the assembly cavity in a sliding manner, the check core is arranged at one end close to the liquid inlet channel, and the spring is arranged between the nozzle structure and the check core; a flaring structure is formed at the liquid outlet end of the liquid inlet channel, a blocking head is arranged at one end of the check core facing the flaring structure, the first sealing ring is sleeved on the blocking head, and the blocking head blocks the liquid inlet channel under the action of the elasticity of a spring; the check core is formed with the drain passageway towards the one end of spring, the feed liquor opening that is linked together with the drain passageway is seted up to the lateral wall of check core.
Further, the rotary core is also included; the rotating core is disposed within the assembly chamber, and the rotating core is located between the nozzle structure and the spring.
Further, a convex ring which is tightly matched with the cavity wall of the assembling cavity is arranged on the end, close to the spring, of the check core in a surrounding mode.
Further, the nozzle structure adopts a venturi nozzle structure.
Furthermore, the installation terminal surface of installation fixing base is furnished with sealing washer, it pays the through-hole to run through to be provided with on the installation fixing base.
Further, the installation end face of the installation fixing seat is annularly provided with a groove, and the middle part of the sealing gasket is provided with an annular protruding part embedded into the groove.
Further, the device also comprises a pressure sensor, wherein the pressure sensor is arranged on the installation fixing seat.
Further, an inner thread is arranged at the inner side of one end of the first body, an outer thread is arranged at the outer side of one end of the second body, the first body and the second body are fixedly connected through the inner thread and the outer thread in a threaded manner, and a second sealing ring is arranged between the first body and the second body.
Further, a connection joint is formed at the other end of the first body.
By adopting the technical scheme of the utility model, the utility model has at least the following beneficial effects:
1. The second body is equipped with the installation fixing base around the ring around the nozzle structure, can conveniently utilize the installation fixing base to install the shower nozzle of putting out a fire and fix the outer wall at the battery package to make the inside of nozzle structure orientation battery package, thereby the fire extinguishing agent of the shower nozzle of putting out a fire injection can get into to the battery package in realizing putting out a fire fast.
2. The check mechanism is arranged in the assembly cavity of the second body and can block the liquid inlet channel when no fire extinguishing agent is sprayed, so that explosion gas or energy in the battery pack can be prevented from being reversely transmitted to the fire extinguishing device through the liquid inlet channel.
3. Adopt to set up rotatory core between nozzle structure and spring, nozzle structure adopts venturi nozzle structure simultaneously, through rotatory core and venturi nozzle structure mutually supporting, can make fire extinguishing agent jet fast and go out and produce atomization effect to realize putting out a fire fast.
4. The sealing gasket is arranged on the installation end face of the installation fixing seat, the circular arc-shaped groove is formed in the installation end face of the installation fixing seat, and the annular protruding portion embedded into the circular arc-shaped groove is correspondingly arranged in the middle of the sealing gasket, so that a good sealing effect can be achieved after the installation fixing seat is fixedly connected with the outer wall of the battery pack.
5. By arranging the pressure sensor on the installation fixing seat, the pressure sensor can be used for detecting pressure change caused by temperature rise or gas leakage in the battery pack because the installation fixing seat is fixed on the battery pack.
[ Description of the drawings ]
The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of the fire suppression sprinkler head of the present utility model;
FIG. 2 is a schematic view of the input end of the fire suppression sprinkler head of the present utility model;
FIG. 3 is a cross-sectional view of the check core of the present utility model;
fig. 4 is a structural view of the fire extinguishing nozzle of the present utility model mounted on a battery pack.
Reference numerals illustrate:
A fire suppression sprinkler 100;
a battery pack 200;
The device comprises a first body 1, a liquid inlet channel 11, a flaring structure 111, a second sealing groove 12 and a connecting joint 13;
The second body 2, the assembly chamber 21, the nozzle structure 22, the mounting fixing seat 23, the locking through hole 231, the groove 232 and the external thread 24;
The check mechanism 3, the spring 31, the check core 32, the blocking head 321, the first sealing groove 3211, the liquid outlet channel 322, the liquid inlet opening 323, the convex ring 324 and the first sealing ring 33;
a rotary core 4;
A sealing gasket 5, an annular boss 51;
a pressure sensor 6;
A second sealing ring 7.
[ Detailed description ] of the invention
In order to better understand the technical scheme of the present utility model, the following detailed description will refer to the accompanying drawings and specific embodiments.
It should be noted herein that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing these embodiments and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operate in a specific orientation. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.
Referring to fig. 1 to 4, in a preferred embodiment of a battery pack fire-extinguishing nozzle 100 of the present utility model, the fire-extinguishing nozzle 100 includes a first body 1, a second body 2 and a check mechanism 3, wherein the first body 1 and the second body 2 are connected in a sealing manner, so that no water leakage occurs between the first body 1 and the second body 2; the first body 1 is internally provided with a liquid inlet channel 11, the second body 2 is internally provided with an assembling cavity 21 communicated with the liquid inlet channel 11, the end part of the second body 2 is provided with a nozzle structure 22 communicated with the assembling cavity 21, the second body 2 is circumferentially provided with a mounting fixing seat 23 around the nozzle structure 22, the mounting fixing seat 23 is used for being fixedly connected with a battery PACK 200 (namely, a PACK battery PACK generally comprises a battery box and a battery monomer arranged in the battery box, etc.), the nozzle structure 22 faces the inside of the battery PACK 200, and in particular, the battery PACK 200 is provided with an opening (not shown) at a position corresponding to the nozzle structure 22 of the fire extinguishing nozzle 100, so that the nozzle structure 22 can spray fire extinguishing agent into the inside of the battery PACK 200; the non-return means 3 are mounted in the assembly chamber 21, which non-return means 3 are able to block the feed channel 11 when no extinguishing agent is being injected.
By adopting the technical scheme provided by the utility model, the method has at least the following beneficial effects:
1. The second body 2 is equipped with the installation fixing base 23 around the surrounding ring of nozzle structure 22, can conveniently utilize the installation fixing base 23 to install and fix the shower nozzle 100 of putting out a fire at the outer wall of battery package 200 to make nozzle structure 22 towards the inside of battery package 200, thereby the fire extinguishing agent of shower nozzle 100 injection can get into to the battery package 200 in realizing putting out a fire fast, can realize PACK level fire extinguishing promptly.
2. The check mechanism 3 is provided in the assembly chamber 21 of the second body 2, and the check mechanism 3 blocks the liquid inlet passage 11 when no fire extinguishing agent is injected, thereby preventing the explosion gas or energy in the battery pack 200 from being reversely transferred to the fire extinguishing device through the liquid inlet passage 11.
As a specific embodiment of the present utility model, the check mechanism 3 includes a spring 31, a check core 32, and a first seal 33; the check core 32 is slidably disposed in the assembly chamber 21 such that the check core 32 can slide in the assembly chamber 21, the check core 32 is disposed at an end near the liquid inlet channel 11, and the spring 31 is disposed between the nozzle structure 22 and the check core 32; the liquid outlet end of the liquid inlet channel 11 is provided with a flaring structure 111, the flaring structure 111 is in a horn-shaped structure, one end of the check core 32 facing the flaring structure 111 is provided with a blocking head 321, the first sealing ring 33 is sleeved on the blocking head 321, and the blocking head 321 blocks the liquid inlet channel 11 under the action of the elasticity of the spring 31; the check core 32 is formed with the liquid outlet channel 322 towards the one end of the spring 31, the lateral wall of the check core 32 is provided with a liquid inlet opening 323 communicated with the liquid outlet channel 322, and in particular, the lateral wall of the check core 32 is provided with a plurality of liquid inlet openings 323, so that the fire extinguishing agent can enter the liquid outlet channel 322 better.
When the fire extinguishing nozzle 100 of the utility model works specifically, when the fire extinguishing nozzle 100 does not need to spray fire extinguishing agent, the spring 31 pushes the check core 32 to the flaring structure 111, so that the blocking head 321 and the first sealing ring 33 of the check core 32 block the liquid outlet end of the liquid inlet channel 11, thereby preventing the explosion gas or energy in the battery pack 200 from being reversely transferred to the fire extinguishing device through the liquid inlet channel 11; when the fire extinguishing nozzle 100 needs to spray fire extinguishing agent, the fire extinguishing agent is conveyed into the first body 1 through the liquid inlet channel 11, the check core 32 retreats under the thrust of the fire extinguishing agent and compresses the spring 31 to store force, at the moment, the liquid inlet opening 323 on the check core 32 is communicated with the liquid inlet channel 11, the fire extinguishing agent can enter the liquid outlet channel 322 through the liquid inlet opening 323, and the fire extinguishing agent is sprayed out through the nozzle structure 22; when the delivery of the fire extinguishing agent to the liquid inlet channel 11 is stopped, the check core 32 automatically resets under the action of the elastic force of the spring 31, so that the plugging head 321 and the first sealing ring 33 plug the liquid outlet end of the liquid inlet channel 11.
In some embodiments of the present utility model, the fire extinguishing nozzle 100 further includes a rotating core 4, and a through hole having a spiral structure is formed in the rotating core 4, so that the fire extinguishing agent can generate a spiral effect when passing through the rotating core 4; the rotary core 4 is arranged within the assembly chamber 21, and the rotary core 4 is located between the nozzle structure 22 and the spring 31. The nozzle arrangement 22 is a venturi nozzle arrangement.
The utility model adopts the rotary core 4 arranged between the nozzle structure 22 and the spring 31, and the nozzle structure 22 adopts the Venturi nozzle structure, and the rotary core 4 and the Venturi nozzle structure are mutually matched, so that the fire extinguishing agent can be rapidly sprayed to generate an atomization effect, thereby realizing rapid fire extinguishing.
More specifically, the check core 32 is provided with a convex ring 324 closely matched with the cavity wall of the assembly cavity 21 at one end close to the spring 31, so that the check core 32 can slide in the assembly cavity 21 stably, and the blocking plug 321 and the first sealing ring 33 can ensure the blocking effect on the liquid inlet channel 11. Preferably, the plugging head 321 has a conical structure, a first sealing groove 3211 is formed on the plugging head 321 in a surrounding manner, and the first sealing ring 33 is disposed in the first sealing groove 3211, and when the plugging head 321 plugs the liquid inlet channel 11, the first sealing ring 33 is tightly attached to the wall surface of the flaring structure 111.
In some embodiments of the present utility model, the mounting end surface of the mounting fixing seat 23 is provided with a sealing gasket 5 to achieve a sealing effect; the mounting fixing base 23 is provided with a locking through hole 231 therethrough to lock and fix the mounting fixing base 23 and the outer wall of the battery pack 200 together by using screws or bolts.
More specifically, the mounting end surface of the mounting fixing seat 23 is provided with a groove 232 in a surrounding manner, and the middle part of the sealing gasket 5 is provided with an annular protruding part 51 embedded into the groove 232. Preferably, the sealing gasket 5 is made of high temperature resistant modified rubber, the cross section of the annular protruding portion 51 is in a semicircular structure, and the groove 232 is a circular arc groove.
According to the utility model, the sealing gasket 5 is arranged on the mounting end surface of the mounting fixing seat 23, the circular arc-shaped groove is formed on the mounting end surface of the mounting fixing seat 23, and the annular protruding part 51 embedded into the circular arc-shaped groove is correspondingly arranged in the middle of the sealing gasket 5, so that a good sealing effect can be achieved after the mounting fixing seat 23 is fixedly connected with the outer wall of the battery pack 200.
In some embodiments of the present utility model, the fire extinguishing nozzle 100 further includes a pressure sensor 6, the pressure sensor 6 is disposed on the mounting base 23, and the pressure sensor 6 is a micro pressure sensor. In the utility model, the pressure sensor 6 is arranged on the installation fixing seat 23, and the installation fixing seat 23 is fixed on the battery pack 200, so that the pressure sensor 6 can be used for detecting the pressure change in the battery pack 200 caused by temperature rise or gas leakage.
In some embodiments of the present utility model, an inner thread (not shown) is disposed on an inner side of one end of the first body 1, an outer thread 24 is disposed on an outer side of one end of the second body 2, the first body 1 and the second body 2 are screwed and fixed by the inner thread and the outer thread 24, and a second sealing ring 7 is disposed between the first body 1 and the second body 2, so as to achieve a sealing effect. More specifically, the inner wall of the first body 1 is provided with a second sealing groove 12 in a ring manner, and the second sealing ring 7 is assembled in the second sealing groove 12.
In the present utility model, a connection joint 13 is formed at the other end of the first body 1, and the connection joint 13 is used to connect the first body 1 with a pipe (not shown) so as to achieve the delivery of the fire extinguishing agent to the fire extinguishing nozzle 100.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.
Claims (10)
1. The utility model provides a battery package shower nozzle of putting out a fire which characterized in that: the anti-collision device comprises a first body, a second body and a non-return mechanism, wherein the first body is in sealing connection with the second body; a liquid inlet channel is formed in the first body, an assembling cavity communicated with the liquid inlet channel is formed in the second body, a nozzle structure communicated with the assembling cavity is arranged at the end part of the second body, and a mounting fixing seat is arranged around the periphery of the nozzle structure in a surrounding mode; the check mechanism is mounted within the assembly chamber.
2. A battery pack fire suppression sprinkler head according to claim 1, wherein: the check mechanism comprises a spring, a check core and a first sealing ring; the check core is arranged in the assembly cavity in a sliding manner, the check core is arranged at one end close to the liquid inlet channel, and the spring is arranged between the nozzle structure and the check core; a flaring structure is formed at the liquid outlet end of the liquid inlet channel, a blocking head is arranged at one end of the check core facing the flaring structure, the first sealing ring is sleeved on the blocking head, and the blocking head blocks the liquid inlet channel under the action of the elasticity of a spring; the check core is formed with the drain passageway towards the one end of spring, the feed liquor opening that is linked together with the drain passageway is seted up to the lateral wall of check core.
3. A battery pack fire suppression sprinkler as recited in claim 2, wherein: also comprises a rotary core; the rotating core is disposed within the assembly chamber, and the rotating core is located between the nozzle structure and the spring.
4. A battery pack fire suppression sprinkler as recited in claim 2, wherein: the check core is provided with a convex ring closely matched with the cavity wall of the assembling cavity at one end close to the spring.
5. A battery pack fire suppression sprinkler head according to claim 1, wherein: the nozzle structure adopts a Venturi nozzle structure.
6. A battery pack fire suppression sprinkler head according to claim 1, wherein: the installation end face of the installation fixing seat is provided with a sealing gasket, and the installation fixing seat is provided with a locking through hole in a penetrating mode.
7. The battery pack fire suppression sprinkler of claim 6, wherein: the installation end face of the installation fixing seat is annularly provided with a groove, and the middle part of the sealing gasket is provided with an annular protruding part embedded into the groove.
8. The battery pack fire suppression sprinkler of claim 6, wherein: the pressure sensor is arranged on the mounting fixing seat.
9. A battery pack fire suppression sprinkler head according to claim 1, wherein: the inner side of one end of the first body is provided with an internal thread, the outer side of one end of the second body is provided with an external thread, the first body and the second body are fixedly connected through the internal thread and the external thread in a threaded manner, and a second sealing ring is arranged between the first body and the second body.
10. A battery pack fire suppression sprinkler head according to claim 9, wherein: the other end of the first body is provided with a connecting joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322497226.4U CN220801780U (en) | 2023-09-14 | 2023-09-14 | Battery package shower nozzle of putting out a fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322497226.4U CN220801780U (en) | 2023-09-14 | 2023-09-14 | Battery package shower nozzle of putting out a fire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220801780U true CN220801780U (en) | 2024-04-19 |
Family
ID=90707581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322497226.4U Active CN220801780U (en) | 2023-09-14 | 2023-09-14 | Battery package shower nozzle of putting out a fire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220801780U (en) |
-
2023
- 2023-09-14 CN CN202322497226.4U patent/CN220801780U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211486305U (en) | Novel energy storage container fire prevention and control system | |
| CN112107817A (en) | Combined distribution type temperature sensing self-starting fire extinguishing device | |
| CN220801780U (en) | Battery package shower nozzle of putting out a fire | |
| CN218420734U (en) | Fire extinguishing device and battery module with same | |
| CN117254144A (en) | Energy storage battery system with electric fire control trigger | |
| CN211188894U (en) | Nozzle for fire protection of lithium battery box and lithium battery with fire prevention function | |
| CN216169558U (en) | Plate type fire extinguishing nozzle of closed box body and fire extinguishing system thereof | |
| CN113241718B (en) | Cable intermediate head | |
| CN211962859U (en) | Local total flooding cooperative fire extinguishing device | |
| CN109882742A (en) | A kind of intelligent water leakage protective device and circulation water conservation system | |
| CN220002858U (en) | Electric explosion partition control puncture valve | |
| CN113540676A (en) | New energy automobile fire control guiding device and battery box | |
| CN203829537U (en) | Fire-fighting sprinkler cooling protection device | |
| CN218129721U (en) | Fire extinguisher | |
| CN219558578U (en) | Electric explosion piercing start spray head | |
| CN213192223U (en) | Temperature-sensing automatic fire extinguishing device with dual detection | |
| CN220443066U (en) | Be applied to integrated form shower nozzle of putting out a fire of battery package | |
| CN219558577U (en) | Single-mode starting closed spray head | |
| CN215691289U (en) | Electric selection valve of fire extinguishing device | |
| CN219440502U (en) | Non-pressure-storage perfluorinated hexanone fire extinguishing device | |
| CN221045351U (en) | Lithium battery with automatic pressure relief and fire-fighting triggering functions | |
| CN220002831U (en) | Electric explosion puncture valve capable of being connected in series | |
| CN220836282U (en) | Spray nozzle for lithium battery box | |
| CN214850417U (en) | Cable intermediate head | |
| CN214808012U (en) | Combined distribution type temperature sensing self-starting fire extinguishing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |