CN213374874U - Pressure relief type aerosol fire extinguisher - Google Patents
Pressure relief type aerosol fire extinguisher Download PDFInfo
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- CN213374874U CN213374874U CN202021928193.4U CN202021928193U CN213374874U CN 213374874 U CN213374874 U CN 213374874U CN 202021928193 U CN202021928193 U CN 202021928193U CN 213374874 U CN213374874 U CN 213374874U
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Abstract
The utility model relates to a pressure release formula aerosol fire extinguisher, have the open-ended barrel including the front end the opening part cover is equipped with a pressure release protecgulum, the lateral wall of pressure release protecgulum is provided with a plurality of logical grooves, it is provided with the elastic component to lead to the inslot, the one end of elastic component is fixed in the barrel, other end butt in lead to the groove, the pressure release protecgulum is suitable for and compresses tightly under the spring action of elastic component the opening to be suitable for the compression under the extreme pressure of fire extinguishing agent the elastic component is in order to open the opening. The utility model discloses when inside fire extinguishing agent pressure is too big, accessible top pushes away the pressure release protecgulum, makes the fire extinguishing agent warp the opening carries out quick pressure release with the mode that leads to the groove and let out, has promoted the security performance of product greatly. And the whole structure design is simple, and parts are few, so the reliability is good, the safety is high, and the potential safety hazard of products can be effectively avoided.
Description
Technical Field
The utility model relates to a fire control eliminates equipment technical field, in particular to pressure release formula aerosol fire extinguisher.
Background
There are many existing fire extinguishers in the market, such as aerosol fire extinguishers, which take a solid gas production source as a fire extinguishing agent. The fire extinguisher is stored without pressure, has small volume and simple maintenance, and is more and more favored by people. However, due to the characteristics of the solid gas source, potential safety hazards exist in the using process, for example, when the solid gas source is crushed or extruded due to vibration, falling and the like, the solid gas source is accidentally started to explode or block a nozzle, the fire extinguishing agent cannot be normally discharged to the outside of the cylinder, the fire extinguishing agent is rapidly accumulated in the cylinder, the air pressure in the cylinder is rapidly and rapidly increased in a short time, extra-high pressure gas is generated and acts on the cylinder and the front cover respectively, if the extra-high pressure gas cannot be discharged in time, the front cover is separated and sprayed out, reverse recoil is generated on the cylinder, and further, accidental injuries can be caused to operators and surrounding people or objects.
Some hand-held type aerosol fire extinguishers have been released on the market, some do not have the pressure release structure, adopt the pressure release structure a bit, and the accessory is many, the structure is complicated, and reliability and security are lower, have the potential safety hazard during the use, and the production equipment is comparatively loaded down with trivial details, is unfavorable for production quality to control.
SUMMERY OF THE UTILITY MODEL
Therefore, the pressure relief type aerosol fire extinguisher not only can realize safe pressure relief, but also has a simple structure and high reliability.
The utility model provides a pressure release formula aerosol fire extinguisher, have the open-ended barrel including the front end the opening part cover is equipped with a pressure release protecgulum, the front end of pressure release protecgulum is provided with the spout that is suitable for spraying fire extinguishing agent, the lateral wall of pressure release protecgulum is provided with a plurality of logical grooves, it is provided with the elastic component to lead to the inslot, the one end of elastic component is fixed in the barrel, other end butt in lead to the groove, the pressure release protecgulum is suitable for and compresses tightly under the elastic action of elastic component the opening to be suitable for and compress down at the ultimate pressure of fire extinguishing agent the elastic component is in order to open the opening.
Preferably, the through groove is a kidney-shaped hole.
Preferably, the elastic element is a spring, a spring plate or an elastic component.
Preferably, a limiter for preventing the pressure relief front cover from falling off is arranged between the pressure relief front cover and the barrel.
Preferably, the stopper is a screw.
Preferably, a plurality of fixing holes are formed in the side wall of the front end of the cylinder, and the elastic piece is fixed to the fixing holes through the screws and is suitable for stretching in the through groove.
Preferably, the pressure relief front cover and the front end of the barrel can slide relatively, and the fire extinguishing agent is suitable to be discharged through the opening and the through groove in sequence when the pressure relief front cover moves forwards to the limit position relative to the barrel.
Preferably, the front end of the barrel and the pressure relief front cover are both provided with a plurality of riveting holes, a riveting piece is fixed in each riveting hole, and the riveting piece is suitable for being broken when the pressure relief front cover is subjected to extreme pressure of fire extinguishing agent, so that the pressure relief front cover moves forwards to the extreme position relative to the barrel.
Preferably, a waterproof and dustproof rubber plug is arranged at the nozzle.
Preferably, an aluminum foil for water and dust prevention is arranged at the through groove.
The utility model discloses a cover is equipped with a pressure release protecgulum at the opening part activity, the lateral wall of pressure release protecgulum is provided with a plurality of logical grooves, it is provided with the elastic component to lead to the inslot, the one end of elastic component is fixed in the barrel, other end butt in lead to the groove for can relative movement between pressure release protecgulum and the barrel, when inside fire extinguishing agent pressure was too big, the accessible top pushes away the pressure release protecgulum, makes high-pressure fire extinguishing agent warp the mode that the opening and logical groove let out carries out the rapid discharge, has promoted the security performance of product greatly. And the whole structure design is simple, and parts are few, so the reliability is good, the safety is high, and the potential safety hazard of products can be effectively avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the pressure relief type aerosol fire extinguisher according to the present embodiment;
FIG. 2 is a schematic view of an exploded structure of the pressure relief type aerosol fire extinguisher according to the present embodiment;
FIG. 3 is a schematic cross-sectional view of the pressure relief type aerosol fire extinguisher according to the present embodiment;
fig. 4 is a schematic view of the operation state of the pressure relief type aerosol fire extinguisher according to the present embodiment.
The purpose of the present invention, its function and principle will be further elucidated in the detailed description with reference to the accompanying drawings.
Detailed Description
The following further description is made with reference to the drawings and specific embodiments.
As shown in fig. 1 and 2, the present embodiment provides a pressure relief type aerosol fire extinguisher 100, which is a handheld portable fire extinguisher, and includes a cylinder 10 having an opening 11 at a front end thereof, wherein a pressure relief front cover 20 is sleeved at the opening 11, a nozzle 21 suitable for spraying a fire extinguishing agent is disposed on the pressure relief front cover 20, a plurality of through grooves 22 are disposed on a side wall of the pressure relief front cover 20, an elastic member 30 is disposed in the through groove 22, one end of the elastic member 30 is fixed to the cylinder 10, and the other end of the elastic member abuts against the through groove 22, the pressure relief front cover 20 is suitable for compressing the opening 11 under the elastic force action of the elastic member 30, and can push the pressure relief front cover 20 under the limit pressure of the fire extinguishing agent to open the opening 11.
The through groove 22 is designed as a waist-shaped hole, and the elastic member 30 is a spring, a resilient sheet, or an elastic member, and is used for providing an elastic force to push the pressure relief front cover 20.
In addition, a stopper for preventing the pressure relief front cover 20 from coming off is arranged between the pressure relief front cover 20 and the barrel 10, and in this embodiment, the stopper is a screw 40.
A plurality of fixing holes 12 are formed in the side wall of the front end of the barrel 10, and the elastic member 30 is fixed to the fixing holes 12 by screws 40 and is adapted to extend and contract in the through groove 22. In this embodiment, the number of the through slots 22 is 3 to 6, the fixing holes 12 correspond to the through slots 22 one by one, one elastic member 30 is disposed in each through slot 22 or each two through slots 22, one end of the elastic member 30 is fixed to the fixing hole 12 by a screw 40, the other end of the elastic member abuts against the inner wall of the through slot 22, and the pressure relief front cover 20 is in sealing contact with the barrel 10 under the elastic force of the elastic members 30 to close the opening 11 at the front end of the barrel 10.
In this embodiment, the pressure relief front cover 20 and the front end of the cylinder 10 can slide relatively, and when the pressure relief front cover 20 moves forward to a limit position relative to the cylinder 10, the fire extinguishing agent in the cylinder 10 can sequentially pass through the opening 11 and the through groove 22 to be discharged so as to release the fire extinguishing agent, thereby avoiding potential safety hazards caused by excessive pressure of the internal gas.
Specifically, a plurality of rivet holes 23 are formed in the front end of the cylinder 10 and the pressure relief front cover 20, a rivet 50 is fixed in each rivet hole 23, and the rivet 50 is adapted to be broken when the pressure relief front cover 20 is subjected to a limit pressure of a fire extinguishing agent, so that the pressure relief front cover 20 moves forward to the limit position relative to the cylinder 10.
The pressure relief type aerosol fire extinguisher 100 of this embodiment falls or the spout blocks up unexpectedly, and a large amount of fire extinguishing agents accumulate in the barrel 10 in the twinkling of an eye when the pressure relief type aerosol fire extinguisher 100 of this embodiment falls or the spout blocks up unexpectedly, and gas pressure sharply increases, and the super high pressure fire extinguishing agent in the barrel 10 pushes away above-mentioned pressure relief protecgulum 20, cuts above-mentioned riveting piece 50, and pressure relief protecgulum 20 for barrel 10 moves forward to extreme position, and the high pressure fire extinguishing agent in the barrel 10 passes through opening 11 with logical groove 22 outwards lets out in proper order to make the gas pressure in the barrel 10 let out fast, avoid inside to produce extra-high pressure gas, eliminated the potential safety hazard.
Referring to fig. 3, the opening 11 of the front end of the cylinder 10 of the pressure-relief type aerosol fire extinguisher 100 of the present embodiment is normally closed by a pressure-relief front cover 20. At this time, the rivet 50 fixes the pressure relief front cover 20 to the front end of the cylinder 10.
Referring to fig. 4, when the fire extinguisher is accidentally started due to violent vibration, accidental fall, etc. to cause deflagration, or the fire extinguishing agent is not normally discharged to the outside of the cylinder 10 due to the blockage of the nozzle 21, the fire extinguishing agent is rapidly accumulated in the cylinder 10, and the air pressure in the cylinder 10 is rapidly increased in a short time. The pressure relief front cover 20 is movably sleeved with the barrel 10, and the pressure relief front cover 20 is pushed by the elastic member 30 arranged in the through groove 22 to close the opening 11. Due to the extremely large air pressure in the canister body 10, the pressure relief front cover 20 shears the rivet 50 under the extreme pressure of the fire extinguishing agent and continues to move forward to open the opening 11, at which time the pressure relief front cover 20 compresses the elastic member 30 in the through groove 22 and is limited by the screw 40. The high-pressure gas in the barrel 10 is discharged through the opening 11 and the through groove 22, so that the pressure in the barrel 10 is reduced, the effect of pressure relief is achieved, excessive gas pressure is prevented from acting on the barrel 10 and the pressure relief front cover 20 respectively, and the potential safety hazards that the barrel 10 is possibly exploded or the pressure relief front cover 20 is sprayed out to hurt people and other objects are avoided.
Since the spout 21 of the pressure relief front cover 20 is not blocked under normal conditions, in order to avoid air and water vapor from entering the fire extinguisher to cause product failure, a rubber plug (not shown) is arranged at the spout 21, and an aluminum foil (not shown) is arranged at the through groove 22. The rubber plug and the aluminum foil have small pressure bearing capacity, can automatically separate or break under larger gas pressure, and cannot influence the pressure relief capacity of a product under the waterproof and dustproof effects.
To sum up, the utility model discloses a cover is equipped with a pressure release protecgulum at the opening part activity, the lateral wall of pressure release protecgulum is provided with a plurality of logical grooves, it is provided with the elastic component to lead to the inslot, the one end of elastic component is fixed in the barrel, other end butt in lead to the groove for can relative movement between pressure release protecgulum and the barrel, when inside fire extinguishing agent pressure was too big, the accessible top pushes away the pressure release protecgulum, makes high-pressure fire extinguishing agent warp the mode that opening and logical groove let out carries out the rapid discharge, has promoted the security performance of product greatly. And the whole structure design is simple, and parts are few, so the reliability is good, the safety is high, and the potential safety hazard of products can be effectively avoided.
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 represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. The utility model provides a pressure release formula aerosol fire extinguisher, has the open-ended barrel including the front end the opening part cover is equipped with a pressure release protecgulum, the front end of pressure release protecgulum is provided with the spout that is suitable for spraying fire extinguishing agent, its characterized in that: the lateral wall of pressure release protecgulum is provided with a plurality of logical grooves, it is provided with the elastic component to lead to the inslot, the one end of elastic component is fixed in the barrel, the other end butt in lead to the groove, the pressure release protecgulum is suitable for to compress tightly under the elastic force effect of elastic component the opening to be suitable for to compress under the extreme pressure of fire extinguishing agent the elastic component is in order to open the opening.
2. The pressure relief type aerosol fire extinguisher according to claim 1, wherein: the through groove is a waist-shaped hole.
3. The pressure relief type aerosol fire extinguisher according to claim 1, wherein: the elastic piece is a spring, a spring sheet or an elastic component.
4. The pressure relief type aerosol fire extinguisher according to claim 1, wherein: and a limiter for preventing the pressure relief front cover from being separated is arranged between the pressure relief front cover and the barrel.
5. The pressure relief type aerosol fire extinguisher according to claim 4, wherein: the limiting stopper is a screw.
6. The pressure relief type aerosol fire extinguisher according to claim 5, wherein: the side wall of the front end of the barrel is provided with a plurality of fixing holes, and the elastic piece is fixed in the fixing holes through the screws and is suitable for stretching in the through grooves.
7. The pressure relief type aerosol fire extinguisher according to claim 1, wherein: the pressure relief front cover and the front end of the barrel can slide relatively, and when the pressure relief front cover moves forwards to a limit position relative to the barrel, the fire extinguishing agent is suitable for being discharged through the opening and the through groove in sequence.
8. The pressure relief type aerosol fire extinguisher according to claim 7, wherein: the fire extinguishing pressure relief device is characterized in that a plurality of riveting holes are formed in the front end of the barrel and the pressure relief front cover, a riveting piece is fixed in each riveting hole and suitable for being broken when the pressure relief front cover is subjected to extreme pressure of a fire extinguishing agent, and the pressure relief front cover moves forwards to the extreme position relative to the barrel.
9. A pressure relief type aerosol fire extinguisher as claimed in any one of claims 1 to 8, wherein: the spout is provided with a waterproof and dustproof rubber plug.
10. A pressure relief type aerosol fire extinguisher as claimed in any one of claims 1 to 8, wherein: and the through groove is provided with a waterproof and dustproof aluminum foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021928193.4U CN213374874U (en) | 2020-09-07 | 2020-09-07 | Pressure relief type aerosol fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021928193.4U CN213374874U (en) | 2020-09-07 | 2020-09-07 | Pressure relief type aerosol fire extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213374874U true CN213374874U (en) | 2021-06-08 |
Family
ID=76214758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021928193.4U Active CN213374874U (en) | 2020-09-07 | 2020-09-07 | Pressure relief type aerosol fire extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213374874U (en) |
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2020
- 2020-09-07 CN CN202021928193.4U patent/CN213374874U/en active Active
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