CN215995437U - Safety protection structure, heat-sensitive line subassembly and extinguishing device - Google Patents
Safety protection structure, heat-sensitive line subassembly and extinguishing device Download PDFInfo
- Publication number
- CN215995437U CN215995437U CN202122012998.5U CN202122012998U CN215995437U CN 215995437 U CN215995437 U CN 215995437U CN 202122012998 U CN202122012998 U CN 202122012998U CN 215995437 U CN215995437 U CN 215995437U
- Authority
- CN
- China
- Prior art keywords
- heat
- shell
- flame
- sensitive
- air inlet
- 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 16
- 239000003063 flame retardant Substances 0.000 claims abstract description 15
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims description 27
- 239000006096 absorbing agent Substances 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 239000002360 explosive Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004880 explosion Methods 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000008033 biological extinction Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 18
- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000000565 sealant Substances 0.000 description 5
- 230000001629 suppression Effects 0.000 description 5
- 230000003213 activating effect Effects 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Abstract
The utility model relates to a safety protection structure, a thermosensitive wire assembly and a fire extinguishing device. The safety protection structure acts on the thermosensitive wire and comprises a shell and flame traps filled in an inner cavity of the shell, wherein the shell is provided with an air inlet and an air outlet which are communicated with the inner cavity of the shell, and the air inlet of the shell is used for being connected with one end of the thermosensitive wire; wherein, the flame trap comprises a flame retardant liquid or a plurality of heat absorbing bodies. So, when the conflagration breaing out, the high temperature that the conflagration produced ignites the heat-sensitive line, and the heat-sensitive line burns to this internal to the device to the starting drive body makes the device body erupt and puts out a fire. And the flame generated by the combustion of the heat-sensitive wire can enter the shell through the air inlet, and the flame entering the shell is extinguished under the heat absorption action of the flame-retardant liquid or the heat-absorbing body filled in the shell, so that the flame-extinguishing effect is achieved. That is to say, the flame that has avoided the heat-sensitive wire burning to produce directly contacts with the flammable explosive gas in the environment under the flame extinction effect of safety protection structure to the risk of explosion has been reduced.
Description
Technical Field
The utility model relates to the technical field of fire-fighting equipment, in particular to a safety protection structure, a thermosensitive wire assembly and a fire extinguishing device.
Background
The fire extinguishing device generally adopts two starting modes of electric starting and hot starting. For the fire extinguishing apparatus adopting the hot start mode, the principle that the heat-sensitive wire burns after being heated is generally utilized, when a fire disaster occurs, the high temperature generated by the fire disaster ignites the heat-sensitive wire, the heat-sensitive wire burns to the inside of the fire extinguishing apparatus, and then the fire extinguishing apparatus is started to perform eruption fire extinguishing.
However, in the case of fire extinguishing apparatuses used in explosive environments, the heat-sensitive wire generates flames after ignition, and the direct contact of the flames with flammable and explosive gases in the environment is likely to cause an explosion accident.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a safety protection structure, a heat-sensitive wire assembly and a fire extinguishing apparatus, which overcome the above-mentioned drawbacks, in order to solve the problem that the fire generated when the heat-sensitive wire of the fire extinguishing apparatus in the prior art is burned contacts with flammable and explosive gas in the environment, thereby causing an explosion accident.
A safety protection structure acts on a thermosensitive wire, and comprises a shell and flame traps filled in an inner cavity of the shell, wherein the shell is provided with an air inlet and an air outlet which are communicated with the inner cavity of the shell, and the air inlet of the shell is used for being connected with one end of the thermosensitive wire;
wherein the flame trap comprises a flame retardant liquid or a plurality of heat absorbing bodies.
In one embodiment, the flame retardant liquid is water.
In one embodiment, the heat absorber is spherical. Therefore, the spherical heat absorbing bodies are adopted, on one hand, a gap is ensured to exist between the heat absorbing bodies, so that the gas entering the inner cavity of the shell from the gas inlet can be discharged from the gas outlet; on the other hand, each heat absorbing body is compact in structure, the rate of the heat absorbing body absorbing flame heat is improved, and the flame suppression effect is improved.
In one embodiment, the heat absorber is a ceramic ball.
In one embodiment, the heat absorber is a metal ball.
A heat-sensitive wire assembly comprising a heat-sensitive wire and a safety shield structure as described in any of the embodiments above;
the heat-sensitive wire comprises a protective tube and a heat-sensitive wire core, one end of the protective tube is used for being connected with the device body, and the other end of the protective tube is connected to the air inlet of the shell; the thermosensitive wire core is arranged in the protective tube in a penetrating mode, and one end of the thermosensitive wire core penetrates into the device body from one end, connected with the device body, of the protective tube.
In one embodiment, the protective tube is a glass fiber tube.
In one embodiment, the outer surface of the shell is provided with a bulge, and the air inlet is arranged on the bulge;
one end of the protective pipe, which is far away from the device body, is sleeved outside the bulge.
In one embodiment, the protective tube is in interference fit with the protrusion, and a sealant is arranged between the protective tube and the protrusion.
A fire extinguishing apparatus comprising an apparatus body and a heat sensitive wire assembly as described in any one of the embodiments above.
Above-mentioned safety protection structure, heat-sensitive line subassembly and extinguishing device, when the conflagration breaing out, the high temperature that the conflagration produced ignites the heat-sensitive line, and the heat-sensitive line burns to this internal to the device to the starting drive body makes the device body erupt and puts out a fire. And the flame generated by the combustion of the thermosensitive wire can enter the inner cavity of the shell through the air inlet, and the flame entering the inner cavity of the shell is extinguished under the heat absorption action of the flame retardant liquid or the heat absorbers filled in the inner cavity of the shell, so that the flame extinguishing effect is achieved. That is to say, the flame that has avoided the heat-sensitive wire burning to produce directly contacts with the flammable explosive gas in the environment under the flame extinction effect of safety protection structure to the risk of explosion has been reduced.
Drawings
FIG. 1 is a schematic view of a fire suppression apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a safety shield structure of the fire suppression apparatus shown in FIG. 1;
fig. 3 is a sectional view of the device body of the fire extinguishing device shown in fig. 1.
10 a device body; 11 a housing; 12 a fire extinguishing agent; 13 a starter agent; 20 a protective tube; 21 a heat-sensitive wire; 30 thermosensitive wire cores; 40 a safety protection structure; 41 a housing; 42 flame traps; 43 an air inlet; 431 convex; and 44 an air outlet.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Fig. 1 shows a schematic structural view of a fire extinguishing apparatus according to an embodiment of the present invention, and fig. 2 shows a schematic structural view of a safety protection structure 40 of the fire extinguishing apparatus shown in fig. 1. For the purpose of illustration, the drawings show only the structures pertinent to the present invention.
Referring to fig. 1 and 2, a fire extinguishing apparatus according to an embodiment of the present invention includes an apparatus body 10 and a heat-sensitive wire assembly.
The heat-sensitive wire assembly includes a heat-sensitive wire 21 and a safety guard structure 40. One end of the thermo-sensitive wire 21 is connected to the apparatus body 10, and the other end of the thermo-sensitive wire 21 is connected to the safety guard structure 40. When a fire breaks out, the heat-sensitive wire 21 is ignited by the high temperature generated by the fire and burns to the apparatus body 10, and the apparatus body 10 is started to perform the eruption fire extinguishing. The safety protection structure 40 acts on the thermosensitive wire 21 to perform safety protection on the thermosensitive wire 21, so as to prevent the flame generated by the combustion of the thermosensitive wire 21 from directly contacting with flammable and explosive gases in the environment to cause explosion.
The safety protection structure 40 includes a housing 41 and a flame trap 42 filled in an inner cavity of the housing 41, wherein the flame trap 42 includes a flame retardant liquid or a plurality of heat absorbing bodies. The casing 41 is opened with an air inlet 43 and an air outlet 44 which are communicated with the inner cavity of the casing 41, and one end of the heat-sensitive wire 21 far away from the device body 10 is connected with the air inlet 43 of the casing 41.
Thus, when a fire occurs, the high temperature generated by the fire ignites the heat-sensitive wire 21, and the heat-sensitive wire 21 burns into the device body 10, so that the device body 10 is started, and the device body 10 performs the eruption fire extinguishing. Flame generated by the combustion of the heat-sensitive wire 21 can enter the inner cavity of the housing 41 through the air inlet 43, and the flame entering the inner cavity of the housing 41 is extinguished under the heat absorption action of the flame-retardant liquid or the plurality of heat absorbers filled in the inner cavity of the housing 41, namely, the flame extinguishing effect is achieved. That is, the flame generated by the combustion of the heat-sensitive wire 21 is prevented from directly contacting with flammable and explosive gases in the environment by the flame quenching action of the safety protection structure 40, so that the risk of explosion is reduced.
In the embodiment, when the flame trap 42 is a flame retardant liquid, the air inlet 43 and the air outlet 44 are both opened at the top of the housing 41 to prevent the flame retardant liquid from leaking from the air inlet 43 or the air outlet 44. Optionally, the flame retardant liquid can adopt water, which is beneficial to reducing the cost. Of course, in other embodiments, the flame retardant liquid may be other non-flammable liquids, so long as the flame can be extinguished.
In particular embodiments, the heat absorber may be spherical. The spherical heat absorbing bodies are adopted, on one hand, a gap is ensured to exist between the heat absorbing bodies, so that the gas entering the inner cavity of the shell 41 from the gas inlet 43 can be discharged from the gas outlet 44; on the other hand, each heat absorbing body is compact in structure, the rate of the heat absorbing body absorbing flame heat is improved, and the flame suppression effect is improved. Alternatively, the heat absorbing body may be a ceramic ball or a metal ball, such as a steel ball or the like. In other embodiments, the heat absorber may be made of other materials, as long as the heat absorber can absorb the heat of the flame to extinguish the flame. In other embodiments, the shape of the heat absorber may be a cube, a cuboid, an ellipsoid, or the like, for example, and of course, a specially-shaped heat absorber may be used as long as it can absorb the heat of the flame to extinguish the flame and gaps for the gas to pass through are formed between the heat absorbers.
In the embodiment of the present invention, the thermosensitive wire 21 includes the protective tube 20 and the thermosensitive wire core 30. One end of the protection tube 20 is connected to the apparatus body 10, and the other end of the protection tube 20 is connected to the air inlet 43 of the housing 41. The heat-sensitive wire core 30 is arranged in the protective tube 20 in a penetrating way, and one end of the heat-sensitive wire core 30 penetrates into the device body (10) from the end of the protective tube 20 connected with the device body 10. So, when the conflagration breaing out, the high temperature that the conflagration produced ignites the heat-sensitive sinle silk 30 in the protective tube 20, and heat-sensitive sinle silk 30 burns to the device body 10 in to starting up device body 10 makes device body 10 spout and puts out a fire. Moreover, the flame generated by the heat-sensitive wire core 30 burning in the protective tube 20 can enter the inner cavity of the shell 41 through the air inlet 43, and the flame entering the inner cavity of the shell 41 is extinguished under the heat absorption action of the flame retardant liquid or the heat absorbers filled in the inner cavity of the shell 41, namely, the flame extinguishing effect is achieved. That is, the flame generated by the combustion of the heat-sensitive wire core 30 is prevented from directly contacting with flammable and explosive gases in the environment under the protection action of the protection tube 20 and the flame-extinguishing action of the safety protection structure 40, so that the risk of explosion is reduced.
It should be noted that, when a fire occurs, under the action of heat generated by the fire and heat generated by combustion of the heat-sensitive wire core 30, air in the protection tube 20 expands due to heating, so that air pressure in the protection tube 20 increases, and a part of air in the protection tube 20 enters the inner cavity of the housing 41 through the air inlet 43 and is discharged from the air outlet 44 of the housing 41, thereby preventing the protection tube 20 from exploding due to the fact that the air in the protection tube 20 cannot be discharged.
In one embodiment, the protective tube 20 may be a glass fiber tube. Of course, the protection tube 20 may be made of other fireproof materials, as long as it can protect the thermosensitive core 30, and is not limited herein.
In the embodiment of the present invention, the outer surface of the housing 41 has a protrusion 431, and the air inlet 43 is opened to the protrusion 431. The end of the protection tube 20 away from the device body 10 is sleeved outside the protrusion 431. In this manner, the provision of the projection 431 facilitates assembly of the shielding tube 20 with the housing 41.
In particular, in the embodiment, the protection tube 20 is in interference fit with the protrusion 431, so that the protection tube 20 is fixed to the protrusion 431.
Further, a sealant is provided between the protection tube 20 and the protrusion 431, so that a gap between the protection tube 20 and the protrusion 431 is sealed by the sealant, and the protection tube 20 is adhesively fixed to the protrusion 431.
Fig. 3 shows a sectional structure of the apparatus body of the fire extinguishing apparatus shown in fig. 1. Referring to fig. 3, in the embodiment of the present invention, the device body 10 includes a housing 11, a fire extinguishing agent 12 and an activating agent 13. The housing 11 has a receiving chamber and a nozzle (not shown) communicating with the receiving chamber (not shown), and the fire extinguishing agent 12 and the activating agent 13 are both disposed in the receiving chamber. One end of the heat-sensitive wire core 30 extends to the starter 13 in the accommodating cavity. When a fire disaster occurs, the heat-sensitive wire core 30 is ignited by high temperature generated by the fire disaster, the heat-sensitive wire core 30 is burnt into the accommodating cavity, and the starting agent 13 is started. The activated activator 13 can rapidly generate a large amount of gas to push the fire extinguishing agent 12 out of the nozzle, i.e., to extinguish the fire. Alternatively, the activator 13 may employ an aerosol generating agent.
In the embodiment, the outer surface of the housing 11 has a boss, the boss is provided with a threading hole communicated with the accommodating cavity, and one end of the thermosensitive wire core 30 penetrates into the accommodating cavity through the threading hole. The end of the protection tube 20 away from the safety protection structure 40 is sleeved outside the boss. Thus, the boss is provided to facilitate the assembly of the protection tube 20 with the housing 11.
Further, the protective tube 20 is in interference fit with the boss, so that the protective tube 20 is fixed to the boss.
Further, a sealant is arranged between the protection tube 20 and the boss, so that the sealant is utilized to seal a gap between the protection tube 20 and the boss, and the protection tube 20 and the boss are bonded and fixed.
The safety protection structure, the thermosensitive wire assembly and the fire extinguishing device have the following advantages that:
flame generated by the combustion of the heat-sensitive wire 21 can enter the inner cavity of the shell 41 through the air inlet 43, and the flame entering the inner cavity of the shell 41 is extinguished under the heat absorption effect of the flame retardant liquid or the plurality of heat absorbers filled in the inner cavity of the shell 41, namely, the flame extinguishing effect is achieved. That is, the flame generated by the combustion of the thermosensitive wire 21 is prevented from directly contacting with flammable and explosive gases in the environment under the flame quenching effect of the safety protection structure 40, so that the risk of explosion is reduced;
the spherical heat absorbing bodies are adopted, on one hand, a gap is ensured to exist between the heat absorbing bodies, so that the gas entering the inner cavity of the shell 41 from the gas inlet 43 can be discharged from the gas outlet 44; on the other hand, each heat absorbing body is compact in structure, the rate of the heat absorbing body absorbing flame heat is improved, and the flame suppression effect is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A safety protection structure acts on a thermosensitive wire (21), and is characterized by comprising a shell (41) and a flame trap (42) filled in an inner cavity of the shell (41), wherein the shell (41) is provided with an air inlet (43) and an air outlet (44) communicated with the inner cavity of the shell (41), and the air inlet (43) of the shell (41) is used for being connected with one end of the thermosensitive wire (21);
wherein the flame trap (42) comprises a flame retardant liquid or a plurality of heat absorbing bodies.
2. The safety shield structure of claim 1, wherein said fire retardant liquid is water.
3. The safety shield structure of claim 1, wherein said heat absorber is spherical.
4. A safety shield structure according to any one of claims 1 to 3, wherein said heat absorbing body is a ceramic ball.
5. A safety shield structure according to any one of claims 1 to 3, wherein said heat absorbing body is a metal ball.
6. A heat-sensitive wire assembly, comprising a heat-sensitive wire (21) and a safety shield structure according to any one of claims 1 to 5;
the heat-sensitive wire (21) comprises a protective pipe (20) and a heat-sensitive wire core (30), one end of the protective pipe (20) is used for being connected with the device body (10), and the other end of the protective pipe (20) is connected to the air inlet (43) of the shell (41); the thermosensitive wire core (30) penetrates through the protective pipe (20), and one end of the thermosensitive wire core (30) penetrates into the device body (10) from one end of the protective pipe (20) connected with the device body (10).
7. A temperature-sensitive wire assembly according to claim 6, wherein the protective tube (20) is a glass fibre tube.
8. A temperature-sensitive wire assembly according to claim 6, wherein the outer surface of the housing (41) has a protrusion (431), the air inlet (43) opening into the protrusion (431);
one end, far away from the device body (10), of the protective pipe (20) is sleeved outside the bulge (431).
9. A temperature-sensitive wire assembly according to claim 8, wherein the protective tube (20) is in interference fit with the protrusion (431), and a sealing glue is arranged between the protective tube (20) and the protrusion (431).
10. Fire extinguishing apparatus, comprising an apparatus body (10) and a heat-sensitive wire assembly according to any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012998.5U CN215995437U (en) | 2021-08-25 | 2021-08-25 | Safety protection structure, heat-sensitive line subassembly and extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012998.5U CN215995437U (en) | 2021-08-25 | 2021-08-25 | Safety protection structure, heat-sensitive line subassembly and extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215995437U true CN215995437U (en) | 2022-03-11 |
Family
ID=80594688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122012998.5U Active CN215995437U (en) | 2021-08-25 | 2021-08-25 | Safety protection structure, heat-sensitive line subassembly and extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215995437U (en) |
-
2021
- 2021-08-25 CN CN202122012998.5U patent/CN215995437U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5350951B2 (en) | Aerosol fire extinguishing system | |
| JP5266172B2 (en) | Aerosol fire extinguishing system | |
| JP6586524B2 (en) | Electrochemical equipment using aerosol fire extinguishing device | |
| JPH04266546A (en) | Gas producer particularly tubular gas producer for air bag use | |
| JP5350952B2 (en) | Aerosol fire extinguishing system | |
| CN111617410A (en) | Fire extinguishing device | |
| CN215309895U (en) | Miniature fire extinguishing device | |
| KR20170006459A (en) | Thermal sensitive automatic fire extinguishing device | |
| CN215995437U (en) | Safety protection structure, heat-sensitive line subassembly and extinguishing device | |
| CN210728492U (en) | Novel cooling fire extinguishing bomb | |
| CN216022876U (en) | Fuse starting drive and fire extinguisher | |
| CN115300847B (en) | Fire extinguishing device | |
| CN215995436U (en) | Safety protection structure, heat-sensitive line subassembly and extinguishing device | |
| CN216022881U (en) | Safety protection structure, heat-sensitive line subassembly and extinguishing device | |
| CN113633918A (en) | Fuse starting drive and fire extinguisher | |
| CN216022875U (en) | Electric initiator starting drive and fire extinguisher | |
| CN212308705U (en) | Fire extinguishing device | |
| CN213667653U (en) | Installation shell and hot aerosol fire extinguishing device | |
| CN113509663A (en) | Non-pressure-storage perfluorohexanone fire extinguishing device | |
| CN210512865U (en) | Colour smoke screen bullet | |
| CN215995433U (en) | Thermosensitive wire connecting device and fire extinguishing device | |
| CN217854271U (en) | Aerosol fire extinguisher | |
| CN111617408A (en) | Fire extinguishing container and device | |
| CN216169605U (en) | Thermosensitive wire protection device, thermosensitive wire assembly and fire extinguishing device | |
| RU134796U1 (en) | COMBINED FIRE EXTINGUISHER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Safety protection structure, thermal wire components and fire extinguishing devices Effective date of registration: 20231214 Granted publication date: 20220311 Pledgee: Bank of Hankou Limited by Share Ltd. Yichang branch Pledgor: Hubei and Andun Fire Technology Co.,Ltd. Registration number: Y2023980071183 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |