WO2013017060A1 - Automatic fire extinguishing explosion suppression bottle - Google Patents
Automatic fire extinguishing explosion suppression bottle Download PDFInfo
- Publication number
- WO2013017060A1 WO2013017060A1 PCT/CN2012/079339 CN2012079339W WO2013017060A1 WO 2013017060 A1 WO2013017060 A1 WO 2013017060A1 CN 2012079339 W CN2012079339 W CN 2012079339W WO 2013017060 A1 WO2013017060 A1 WO 2013017060A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fire extinguishing
- bottle
- automatic fire
- explosion suppression
- suppression bottle
- Prior art date
Links
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
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
-
- 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
- A62C35/023—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas
Definitions
- the invention relates to the technical field of fire fighting equipment, in particular to an automatic fire extinguishing and anti-explosion bottle.
- the automatic fire suppression and explosion suppression system used in China is still the Halon 1301 fire suppression and explosion suppression system.
- the invention provides an environmentally friendly, less poisonous, safe, reliable, lightweight and low cost hexafluoroguanidine automatic fire suppression and explosion suppression bottle, which can completely replace the current 1301. Fire extinguishing bottle.
- the invention adopts the hexafluoropropene fire extinguishing agent instead of the current halon 1301 fire extinguishing agent under the premise that the structural form of the halon 1301 fire extinguishing and suppressing bottle remains unchanged. Due to the difference in physical and chemical properties, fire extinguishing performance, environmental performance and the like of the hexafluoropropene fire extinguishing agent and the 1301 fire extinguishing agent, the present invention has been designed and improved on the local structure, and the specific technical solutions are as follows:
- An automatic fire extinguishing and anti-explosion bottle comprises a bottle body 1, a protective cover base 2, a protective cover upper cover 3, a sealed blasting diaphragm assembly 4, a distribution plate 5, an electric squib 6 , a flange assembly 7 and a reverse rear seat cap 8 And the hoop 9; characterized in that the distribution plate 5 is screwed to the top end of the flange assembly 7, and the structure is simple to install and convenient to operate with respect to the structure fixed to the protective cover by screws.
- the sealed blasting diaphragm assembly 4 is composed of a gasket 10, a sealing blasting membrane 11 and a pressure ring 12 which are arranged in sequence, and the sealing blasting membrane 11 and the pressure ring 12 are integrally arranged to facilitate the installation of the sealing membrane. Avoid damage to the diaphragm due to accidental operation, and enhance the structural strength of the edge of the sealing diaphragm.
- the sealed rupture disc 11 is of a positive arch type, which is hydrostatically (or pneumatically) exerted on one side by a metal flat plate clamped on the periphery to make it bulge into an arch shape, and the pre-arching pressure (for burst pressure) 85% ⁇ 92%) is greater than its working pressure, so the sealing diaphragm no longer produces significant plastic deformation under working pressure.
- the arched diaphragm is stretched and deformed, and the arch height is increased. Thickness reduction Thin, when the stress intensity on the arched diaphragm reaches the strength limit of the material, the diaphragm first breaks at the top of the arch, and then the entire diaphragm tears irregularly along the gripping edge.
- the bottle body 1 is a carbon fiber-wound composite gas cylinder of a stainless steel inner liner, and the carbon fiber-wound composite gas cylinder of the stainless steel inner liner is better in compatibility with the hexafluoropropane fire extinguishing agent under any circumstances, and has high corrosion resistance, and The work is safe and reliable, the weight of the ordinary bottle is lighter, and the manufacturing cost of the aluminum alloy liner is lower.
- the protective cover is made of a lightweight plastic or nylon material.
- Figure 1 is a front cross-sectional view showing the structure of the present invention
- Figure 2 is a left side cross-sectional view showing the structure of the present invention.
- Figure 3 is a schematic view of a sealed blasting diaphragm assembly.
- the invention relates to an automatic fire extinguishing and anti-explosion bottle, referring to FIG. 1 and FIG. 2, comprising a bottle body 1, a protective cover base 2, a protective cover upper cover 3, a sealed blasting diaphragm assembly 4, a distribution plate 5, an electric squib 6 and a method
- the bottle body 1 is a stainless steel inner carbon fiber-wound composite gas cylinder, and the material of the protective cover base 2 and the protective cover upper cover 3 is nylon, the protective cover base 2 is adhered to the bottle body 1, and the protective cover upper cover 3 is fixed by screws.
- the distribution plate 5 is directly mounted on the top end of the flange assembly 7 through the threaded interface.
- the flange assembly 7 of the present invention is provided with a sealed blasting diaphragm assembly 4, which is mainly composed of a copper gasket 10, a sealing blasting diaphragm 11 and a pressure ring 12 which are sequentially disposed, and the blasting diaphragm 11 and the pressure ring are sealed. 12 is integrated into one, and the sealed blasting diaphragm 11 is a positive arch; other structural forms remain unchanged with the Halon 1301 fire suppression and suppression bottle.
- the invention provides an environmentally friendly, less poisonous, safe, reliable, lightweight and low cost hexafluoropropene fire extinguishing and extinguishing bottle, which can completely replace the current 1301 fire extinguishing and anti-explosion bottle.
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Air Bags (AREA)
Abstract
An automatic fire extinguishing explosion suppression bottle, comprising bottle body (1), base of protective cover (2), protective upper cover (3), sealing blast membrane component (4), distribution disc (4), detonator (5), flange assembly (7), inverse recoil cap (8), and ring hoop (9); wherein the distribution disc (5) is connected with the top end of flange assembly (7) through a screw thread, the sealing blast membrane component (4) provided with a gasket (10), a sealing blast membrane (11) and a press ring (12) in turn; the sealing blast membrane (11) is vault shape integrated with the press ring (12). The fire extinguishing explosion suppression bottle with 6-fluorin-dimethylmethane is environmental-friendly, less toxic, safe reliable, light weight, inexpensive，and totally substitutable for present fire extinguishing explosion suppression bottle with 1301.
Description
一种自动灭火抑爆瓶 技术领域 Automatic fire extinguishing and anti-explosion bottle
本发明涉及消防器材技术领域， 特别是一种自动灭火抑爆瓶。 The invention relates to the technical field of fire fighting equipment, in particular to an automatic fire extinguishing and anti-explosion bottle.
背景技术 Background technique
目前我国使用的自动灭火抑爆系统仍然是哈龙 1301灭火抑爆系统， 蒙 特利尔协定书的签订， 我国政府承诺， 我国消防行业从 2010年 1月 1 日起 全部停止哈龙 1301灭火剂的生产。 因此积极研制一种可替代哈龙 1301灭 火抑爆瓶的与更加环保、 毒害更小的新型灭火剂相配套的灭火抑爆瓶， 使 之能够适用于现有车辆并满足未来地面战斗车辆的需求， 有着更加迫切和 现实的积极意义,也直接影响到我军武器装备的保障安全。 At present, the automatic fire suppression and explosion suppression system used in China is still the Halon 1301 fire suppression and explosion suppression system. The signing of the Montréal Agreement, the Chinese government promised that China's fire protection industry will stop the production of Halon 1301 fire extinguishing agent from January 1, 2010. Therefore, it is actively developing a fire extinguishing and anti-explosion bottle that can replace the new environmentally-friendly and less poisonous new fire-extinguishing agent, which can replace the halon 1301 fire-extinguishing bottle, so that it can be applied to existing vehicles and meet the needs of future ground-based combat vehicles. It has a more urgent and realistic positive significance, and it also directly affects the security of our military's weapons and equipment.
发明内容 Summary of the invention
为了解决哈龙 1301灭火抑爆系统的替代问题，本发明提供了一种环保、 毒害更小、 安全可靠、 重量轻、 成本低的六氟丙垸自动灭火抑爆瓶， 可完 全替代目前的 1301灭火抑爆瓶。 In order to solve the problem of substitution of the Halon 1301 fire suppression system, the invention provides an environmentally friendly, less poisonous, safe, reliable, lightweight and low cost hexafluoroguanidine automatic fire suppression and explosion suppression bottle, which can completely replace the current 1301. Fire extinguishing bottle.
本发明为了满足使用场所的安装方式、 安装空间等方面的要求， 对哈 龙 1301灭火抑爆瓶的结构形式保持不变的前提下， 采用六氟丙垸灭火剂替 代目前的哈龙 1301灭火剂， 由于六氟丙垸灭火剂与 1301灭火剂的物化性 质、 灭火性能、 环保性能等方面的差异， 本发明对局部结构进行了设计改 进， 具体技术方案如下： In order to meet the requirements of installation mode and installation space of the use place, the invention adopts the hexafluoropropene fire extinguishing agent instead of the current halon 1301 fire extinguishing agent under the premise that the structural form of the halon 1301 fire extinguishing and suppressing bottle remains unchanged. Due to the difference in physical and chemical properties, fire extinguishing performance, environmental performance and the like of the hexafluoropropene fire extinguishing agent and the 1301 fire extinguishing agent, the present invention has been designed and improved on the local structure, and the specific technical solutions are as follows:
一种自动灭火抑爆瓶， 包括瓶体 1、 保护罩底座 2、 保护罩上盖 3、 密 封爆破膜片组件 4、分布盘 5、 电爆管 6、法兰组件 7、反后座帽 8和环箍 9; 其特征在于， 分布盘 5通过螺纹连接于法兰组件 7的顶端， 相对于通过螺 钉固定在保护罩上的结构， 本结构安装简单， 操作方便。 所述的密封爆破 膜片组件 4由依次设置的垫片 10、 密封爆破膜片 11和压环 12组成， 所述 密封爆破膜片 11与压环 12设置成一体， 便于密封膜片的安装， 避免因操 作不慎对膜片造成破损， 而且增强了密封膜片边沿的结构强度。 所述密封 爆破膜片 11是正拱型， 其由一个周边被夹持的金属圆平片在一侧施加静液 压 (或气压)， 使其膨凸成拱形， 预拱成型压力 (为爆破压力的 85 %〜92%) 大于其工作压力， 因此密封膜片在工作压力下不再产生显著的塑性变形， 随所受压力的增加， 拱形膜片发生拉伸变形， 拱形高度增加， 膜片厚度减
薄， 当拱形膜片上的应力强度达到材料的强度极限时， 膜片首先在拱形顶 部破裂， 随即整个膜片沿夹持边缘无规则地撕开。 由于使用前已经预拱成 型， 因而其整体的抗疲劳性较现有的平板结构大大增强。 所述的瓶体 1 是 不锈钢内胆碳纤维缠绕复合气瓶， 锈钢内胆碳纤维缠绕复合气瓶是在任何 情况下与六氟丙垸灭火剂的相容性较好， 抗腐蚀性强， 而且工作安全可靠， 较普通的瓶体重量也轻， 而且相对铝合金内胆的制造成本较低。 所述保护 罩采用轻质的塑料或尼龙材料制成。 An automatic fire extinguishing and anti-explosion bottle comprises a bottle body 1, a protective cover base 2, a protective cover upper cover 3, a sealed blasting diaphragm assembly 4, a distribution plate 5, an electric squib 6 , a flange assembly 7 and a reverse rear seat cap 8 And the hoop 9; characterized in that the distribution plate 5 is screwed to the top end of the flange assembly 7, and the structure is simple to install and convenient to operate with respect to the structure fixed to the protective cover by screws. The sealed blasting diaphragm assembly 4 is composed of a gasket 10, a sealing blasting membrane 11 and a pressure ring 12 which are arranged in sequence, and the sealing blasting membrane 11 and the pressure ring 12 are integrally arranged to facilitate the installation of the sealing membrane. Avoid damage to the diaphragm due to accidental operation, and enhance the structural strength of the edge of the sealing diaphragm. The sealed rupture disc 11 is of a positive arch type, which is hydrostatically (or pneumatically) exerted on one side by a metal flat plate clamped on the periphery to make it bulge into an arch shape, and the pre-arching pressure (for burst pressure) 85%~92%) is greater than its working pressure, so the sealing diaphragm no longer produces significant plastic deformation under working pressure. As the pressure is increased, the arched diaphragm is stretched and deformed, and the arch height is increased. Thickness reduction Thin, when the stress intensity on the arched diaphragm reaches the strength limit of the material, the diaphragm first breaks at the top of the arch, and then the entire diaphragm tears irregularly along the gripping edge. Due to the pre-arching before use, the overall fatigue resistance is greatly enhanced compared to the existing flat structure. The bottle body 1 is a carbon fiber-wound composite gas cylinder of a stainless steel inner liner, and the carbon fiber-wound composite gas cylinder of the stainless steel inner liner is better in compatibility with the hexafluoropropane fire extinguishing agent under any circumstances, and has high corrosion resistance, and The work is safe and reliable, the weight of the ordinary bottle is lighter, and the manufacturing cost of the aluminum alloy liner is lower. The protective cover is made of a lightweight plastic or nylon material.
附图说明 DRAWINGS
图 1为本发明的结构主剖视图； Figure 1 is a front cross-sectional view showing the structure of the present invention;
图 2为本发明的结构左剖视图； Figure 2 is a left side cross-sectional view showing the structure of the present invention;
图 3为密封爆破膜片组件示意图。 Figure 3 is a schematic view of a sealed blasting diaphragm assembly.
图中： 1瓶体、 2保护罩底座、 3保护罩上盖、 4密封爆破膜片组件、 5 分布盘、 6电爆管、 7法兰组件、 8反后座帽、 9环箍、 10压环、 11密封爆 破膜片、 12压环。 In the figure: 1 bottle body, 2 protective cover base, 3 protective cover upper cover, 4 sealed blasting diaphragm assembly, 5 distribution plate, 6 electric squib, 7 flange assembly, 8 reverse seat cap, 9 hoop, 10 Pressure ring, 11 sealed blasting diaphragm, 12 pressure ring.
具体实施方式 detailed description
下面结合附图和实施例对本发明进一步说明。 The invention will now be further described with reference to the drawings and embodiments.
本发明一种自动灭火抑爆瓶， 参见图 1和图 2， 包括瓶体 1、 保护罩底 座 2、 保护罩上盖 3、 密封爆破膜片组件 4、 分布盘 5、 电爆管 6、 法兰组件 7、 反后座帽 8和环箍 9。 瓶体 1为不锈钢内胆碳纤维缠绕复合气瓶， 保护 罩底座 2和保护罩上盖 3的材料为尼龙， 保护罩底座 2粘接在瓶体 1上， 保护罩上盖 3通过螺钉固定在保护罩底座 2上； 分布盘 5通过螺纹接口直 接安装在法兰组件 7的顶端， 当在抑爆瓶运输过程中， 将分布盘 5拆卸下 来， 将反后座帽 8安装在法兰组件 7的顶端， 以防运输过程中抑爆瓶意外 启动时平衡后座力。参见图 3， 本发明的法兰组件 7中设置有密封爆破膜片 组件 4， 主要由依次设置的紫铜垫片 10、 密封爆破膜片 11和压环 12组成， 密封爆破膜片 11与压环 12设置成一体， 密封爆破膜片 11为正拱形； 其他 结构形式与哈龙 1301灭火抑爆瓶保持不变。 本发明提供了一种环保、 毒害 更小、 安全可靠、 重量轻、 成本低的六氟丙垸灭火抑爆瓶， 可完全替代目 前的 1301灭火抑爆瓶。
The invention relates to an automatic fire extinguishing and anti-explosion bottle, referring to FIG. 1 and FIG. 2, comprising a bottle body 1, a protective cover base 2, a protective cover upper cover 3, a sealed blasting diaphragm assembly 4, a distribution plate 5, an electric squib 6 and a method The blue assembly 7, the rear rear seat cap 8 and the hoop 9. The bottle body 1 is a stainless steel inner carbon fiber-wound composite gas cylinder, and the material of the protective cover base 2 and the protective cover upper cover 3 is nylon, the protective cover base 2 is adhered to the bottle body 1, and the protective cover upper cover 3 is fixed by screws. On the cover base 2; the distribution plate 5 is directly mounted on the top end of the flange assembly 7 through the threaded interface. When the explosion-proof bottle is transported, the distribution plate 5 is detached, and the anti-rear seat cap 8 is mounted on the flange assembly 7. The top, in order to prevent the balance of the rear seat force when the explosion-proof bottle is accidentally started during transportation. Referring to FIG. 3, the flange assembly 7 of the present invention is provided with a sealed blasting diaphragm assembly 4, which is mainly composed of a copper gasket 10, a sealing blasting diaphragm 11 and a pressure ring 12 which are sequentially disposed, and the blasting diaphragm 11 and the pressure ring are sealed. 12 is integrated into one, and the sealed blasting diaphragm 11 is a positive arch; other structural forms remain unchanged with the Halon 1301 fire suppression and suppression bottle. The invention provides an environmentally friendly, less poisonous, safe, reliable, lightweight and low cost hexafluoropropene fire extinguishing and extinguishing bottle, which can completely replace the current 1301 fire extinguishing and anti-explosion bottle.
Claims
1、 一种自动灭火抑爆瓶， 包括瓶体 （1)、 保护罩底座 （2)、 保护罩上 盖（3)、 密封爆破膜片组件（4)、 分布盘（5)、 电爆管（6)、 法兰组件（7)、 反后座帽 （8) 和环箍 （9); 其特征在于， 分布盘通过螺纹连接于法兰组件 的顶端， 所述的密封爆破膜片组件 （4) 由依次设置的垫片 （10)、 密封爆 破膜片 （11) 和压环 （12) 组成。 1. An automatic fire extinguishing and explosion-proof bottle, comprising a bottle body (1), a protective cover base (2), a protective cover upper cover (3), a sealed blasting diaphragm assembly (4), a distribution plate (5), an electric squib (6), a flange assembly (7), a reverse rear seat cap (8) and a hoop (9); wherein the distribution plate is threadedly coupled to the top end of the flange assembly, the sealed blasting diaphragm assembly ( 4) It consists of a gasket (10), a seal rupture diaphragm (11) and a pressure ring (12).
2、 根据权利要求 1所述的自动灭火抑爆瓶， 其特征在于， 所述密封爆 破膜片 （11) 与压环 （12) 设置成一体。 The automatic fire suppression and explosion suppression bottle according to claim 1, characterized in that the seal burst membrane (11) is integrally provided with the pressure ring (12).
3、 根据权利要求 1所述的自动灭火抑爆瓶， 其特征在于， 所述密封爆 破膜片 （11) 是正拱型。 The automatic fire suppression and explosion suppression bottle according to claim 1, wherein the sealed burst membrane (11) is a positive arch type.
4、 根据权利要求 1所述的自动灭火抑爆瓶， 其特征在于， 所述的瓶体 (1) 是不锈钢内胆碳纤维缠绕复合气瓶。 4. The automatic fire extinguishing and suppression bottle according to claim 1, wherein the bottle body (1) is a stainless steel inner carbon fiber wound composite gas cylinder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202790478U CN202191621U (en) | 2011-08-02 | 2011-08-02 | Automatic extinguishing and explosion suppression bottle |
| CN201120279047.8 | 2011-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013017060A1 true WO2013017060A1 (en) | 2013-02-07 |
Family
ID=45946554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/079339 WO2013017060A1 (en) | 2011-08-02 | 2012-07-30 | Automatic fire extinguishing explosion suppression bottle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202191621U (en) |
| WO (1) | WO2013017060A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202191621U (en) * | 2011-08-02 | 2012-04-18 | 陕西坚瑞消防股份有限公司 | Automatic extinguishing and explosion suppression bottle |
| DE102013002853A1 (en) * | 2013-02-20 | 2014-08-21 | Fogtec Brandschutz Gmbh & Co. Kg | Fire fighting equipment for rail vehicles |
| CN104287425A (en) * | 2014-10-11 | 2015-01-21 | 李怡潇 | Carbon fiber water glass and production method thereof |
| US10420969B2 (en) * | 2017-10-17 | 2019-09-24 | Kidde Technologies, Inc. | Commercial aviation fire extinguisher—strength increase method for in service and OEM fire protection |
| CN114307002A (en) * | 2021-11-24 | 2022-04-12 | 北京北机机电工业有限责任公司 | Rupture disk adaptive to caliber of standard fire extinguishing bottle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4194569A (en) * | 1976-11-22 | 1980-03-25 | Richard Charles Heath | Fire extinguishers |
| GB2171905A (en) * | 1985-03-06 | 1986-09-10 | Graviner Ltd | Explosion suppression arrangement |
| US5291952A (en) * | 1992-07-22 | 1994-03-08 | Deugra Gesellschaft Fur Brandschutzsysteme Mbh | Extinguishing agent container |
| CN2678696Y (en) * | 2004-02-27 | 2005-02-16 | 沈阳工业学院 | Extinguisher fixed explosion-proof fire fighting |
| CN2902343Y (en) * | 2006-04-28 | 2007-05-23 | 沈阳理工大学 | Automatic fire extinguishing explosion inhibiting fire suppression bottle |
| CN202191621U (en) * | 2011-08-02 | 2012-04-18 | 陕西坚瑞消防股份有限公司 | Automatic extinguishing and explosion suppression bottle |
-
2011
- 2011-08-02 CN CN2011202790478U patent/CN202191621U/en not_active Expired - Lifetime
-
2012
- 2012-07-30 WO PCT/CN2012/079339 patent/WO2013017060A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4194569A (en) * | 1976-11-22 | 1980-03-25 | Richard Charles Heath | Fire extinguishers |
| GB2171905A (en) * | 1985-03-06 | 1986-09-10 | Graviner Ltd | Explosion suppression arrangement |
| US5291952A (en) * | 1992-07-22 | 1994-03-08 | Deugra Gesellschaft Fur Brandschutzsysteme Mbh | Extinguishing agent container |
| CN2678696Y (en) * | 2004-02-27 | 2005-02-16 | 沈阳工业学院 | Extinguisher fixed explosion-proof fire fighting |
| CN2902343Y (en) * | 2006-04-28 | 2007-05-23 | 沈阳理工大学 | Automatic fire extinguishing explosion inhibiting fire suppression bottle |
| CN202191621U (en) * | 2011-08-02 | 2012-04-18 | 陕西坚瑞消防股份有限公司 | Automatic extinguishing and explosion suppression bottle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202191621U (en) | 2012-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2013017060A1 (en) | Automatic fire extinguishing explosion suppression bottle | |
| CN105627083A (en) | Anti-explosion high-pressure storage tank | |
| CN107825773B (en) | Aluminum-plastic composite film for lithium battery flexible package | |
| CN107472007B (en) | Anti-leakage bulletproof oil tank | |
| CN104330263B (en) | A kind of constant volume bullet form | |
| WO2013017079A1 (en) | Fixed automatic fire extinguisher | |
| CN103742786B (en) | Security system is clashed in motor liquified gas combustion gas | |
| CN104477330B (en) | Marine bulletproof window capable of being rapidly mounted and dismounted | |
| CN201516251U (en) | Decompression assembly for fire suppression bottles and fire suppression bottle | |
| CN202691191U (en) | Aluminum diaphragm explosion venting valve | |
| CN204667871U (en) | Positive-pressure air respirator alarm whistle assembly | |
| CN201772097U (en) | Fire-protection diaphragm valve | |
| CN207120646U (en) | A kind of bullet-proof fuel tank of antiseep | |
| CN102996872A (en) | Explosion venting valve capable resetting automatically | |
| CN208722972U (en) | A kind of safe deflation structure of lithium dynamical battery shell | |
| CN205685270U (en) | A kind of fire-fighting quartering hammer | |
| CN2902343Y (en) | Automatic fire extinguishing explosion inhibiting fire suppression bottle | |
| CN202844410U (en) | Composite material escape capsule used for emergency escape | |
| CN213236547U (en) | Double-safety-valve blowing explosion-proof system | |
| CN212672710U (en) | High-strength gas pipeline | |
| CN205683436U (en) | A kind of fire extinguisher assembly | |
| CN204175094U (en) | The device that a kind of glass of bus window falls fast | |
| CN203809893U (en) | High-flame-retardance oil filling pipe | |
| CN207989842U (en) | Long-tube trailer safety relief device | |
| CN216145670U (en) | Special rupture disc of new energy automobile battery module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12820346 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 12820346 Country of ref document: EP Kind code of ref document: A1 |