CN212282627U - Fire extinguisher with safety pressure relief device - Google Patents
Fire extinguisher with safety pressure relief device Download PDFInfo
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- CN212282627U CN212282627U CN202020102762.3U CN202020102762U CN212282627U CN 212282627 U CN212282627 U CN 212282627U CN 202020102762 U CN202020102762 U CN 202020102762U CN 212282627 U CN212282627 U CN 212282627U
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- pressure relief
- fire extinguisher
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- pressure release
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Abstract
The utility model belongs to the technical field of fire extinguisher, especially, relate to fire extinguisher with safe pressure relief device. Including the fire extinguisher urceolus, locate the fire extinguisher urceolus in be used for installing the inner shell of putting out a fire the medium, locate spout on the fire extinguisher urceolus and be used for the shutoff the end cap of spout, the relative spout one end of inner shell is the through-hole, and through-hole department is equipped with elasticity pressure relief mechanism, still be equipped with second pressure relief mechanism on the inner shell, second pressure relief mechanism is including locating the pressure release hole on the inner shell perisporium and the pressure release piece that is used for shutoff pressure release hole. It utilizes traditional elasticity pressure release mechanism to go on after being blockked up the filter screen, bulldozes the filter screen from carrying out the pressure release to keep putting out a fire the continuous blowout of medium, if block up the back once more, inside crescent pressure can break the pressure release piece earlier, thereby follow the pressure release hole pressure release, the protection fire extinguishing device can not lead to being broken by pressure because of blockking up, guarantee operating personnel safety.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of fire extinguisher, especially, relate to fire extinguisher with safe pressure relief device.
[ background of the invention ]
The portable hot aerosol fire extinguisher is widely applied to offices, vehicles, residences and the like, wherein the safety pressure relief device directly influences the use and safety of the fire extinguishing device, a spring safety pressure relief device is generally adopted by the fire extinguishing device on the market at present, the key point of the method is that a spring acts after a filter screen is blocked by aerosol ash, the pressure is relieved through a gap between the outer diameter of the filter screen and the inner wall of a cylinder body of the fire extinguishing device, most manufacturers adopt the mode at present, because the gap between the outer diameter of the filter screen and the inner wall of the cylinder body of the fire extinguishing device is too small to be easily blocked, and the spring elasticity is different in size, the overpressure relief function is seriously influenced, and the quality of the safety pressure relief during overpressure during the use process of the fire extinguishing device cannot be effectively ensured. Various injury potential safety hazards can be brought to users and operators.
[ summary of the invention ]
For only adopting elasticity safety pressure release structure to block up the problem after solving hot aerosol fire extinguisher among the prior art, the utility model provides a fire extinguisher with safe pressure release device.
The utility model discloses a realize through following technical scheme:
fire extinguisher with safe pressure relief device, including the fire extinguisher urceolus, locate the inner shell that is used for installing the medium of putting out a fire in the fire extinguisher urceolus, locate spout on the fire extinguisher urceolus and be used for the shutoff the end cap of spout, the relative spout one end of inner shell is the through-hole, and through-hole department is equipped with elasticity pressure relief mechanism, still be equipped with second pressure relief mechanism on the inner shell, second pressure relief mechanism is including locating the pressure relief hole on the inner shell perisporium and the pressure release piece that is used for shutoff pressure relief hole.
According to the fire extinguisher with the safety pressure relief device, the pressure relief sheet is bonded on the inner wall of the inner shell.
The fire extinguisher with the safety pressure relief device is characterized in that the pressure relief sheet is a metal membrane or a metal foil, and the thickness of the pressure relief sheet is 0.01mm to 0.5 mm.
The fire extinguisher with the safety pressure relief device is characterized in that the peripheral wall of the inner shell is provided with a plurality of pressure relief holes.
The fire extinguisher with the safety pressure relief device is characterized in that a plurality of pressure relief holes are blocked by a single pressure relief sheet.
The fire extinguisher with the safety pressure relief device has the advantages that the axes of the pressure relief holes are positioned on the same plane.
The fire extinguisher with the safety pressure relief device is characterized in that a plurality of pressure relief holes are vertically arranged along the inner shell.
The fire extinguisher with the safety pressure relief device has the advantages that the diameter of the pressure relief hole is 5mm to 15 mm.
Compared with the prior art, the utility model discloses there is following advantage:
1. the utility model provides a fire extinguisher with safe pressure relief device, it utilizes traditional elasticity pressure relief mechanism to go on after being blockked up the filter screen, bulldozes the filter screen from carrying out the pressure release to keep lasting blowout of medium of putting out a fire, if block up the back once more, inside crescent pressure can break the pressure release piece earlier, thereby from pressure release hole pressure release, protection fire extinguishing device can not lead to being broken by pressure because of being blockked up, guarantee operating personnel safety. The problem of in the past fire control extinguishing device because spring safety pressure relief device opens the pressure unstable, influences its superpressure and releases, influences operating personnel's safety when fire control extinguishing device uses even is solved. Simple structure, reliable, simple to operate, safe pressure release pressure unanimous, stable, can not take place blocking phenomenon once more, can effectively protect fire extinguishing device and operating personnel's safety, and low in manufacturing cost, the easy popularization and application of level.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of the fire extinguisher with a safety pressure relief device of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is an enlarged view of the safety device.
[ detailed description ] embodiments
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model discloses a realize through following technical scheme:
as shown in fig. 1 to 2, the fire extinguisher with the safety pressure relief device comprises an outer fire extinguisher cylinder 11, an inner shell 13 arranged in the outer fire extinguisher cylinder 11 and used for installing a fire extinguishing medium, a nozzle 22 arranged on the outer fire extinguisher cylinder 11 and a plug 21 used for plugging the nozzle 22, wherein one end of the inner shell 13 opposite to the nozzle 22 is a through hole, an elastic pressure relief mechanism 14 is arranged at the through hole, a second pressure relief mechanism is further arranged on the inner shell 13, and the second pressure relief mechanism comprises a pressure relief hole 15 arranged on the peripheral wall of the inner shell and a pressure relief sheet 16 used for plugging the pressure relief hole 15. The utility model provides a fire extinguisher with safe pressure relief device, it utilizes traditional elasticity pressure relief mechanism to go on after being blockked up the filter screen, bulldozes the filter screen from carrying out the pressure release to keep lasting blowout of medium of putting out a fire, if block up the back once more, inside crescent pressure can break the pressure release piece earlier, thereby from pressure release hole pressure release, protection fire extinguishing device can not lead to being broken by pressure because of being blockked up, guarantee operating personnel safety. The problem of in the past fire control extinguishing device because spring safety pressure relief device opens the pressure unstable, influences its superpressure and releases, influences operating personnel's safety when fire control extinguishing device uses even is solved. Simple structure, reliable, simple to operate, safe pressure release pressure unanimous, stable, can not take place blocking phenomenon once more, can effectively protect fire extinguishing device and operating personnel's safety, and low in manufacturing cost, the easy popularization and application of level.
Further, the pressure relief sheet 16 is bonded to the inner wall of the inner case 13. The installation mode is fixed by bonding. Simple structure and easy manufacture.
Moreover, the pressure relief sheet 16 can easily control the rupture pressure value, so that the opening pressure of the fire-fighting device is ensured to be consistent in the safe pressure relief process, and the secondary blocking phenomenon cannot occur.
Specifically, the pressure relief sheet 16 is a metal membrane sheet or foil sheet having a thickness of 0.01mm to 0.5 mm. The rupture pressure value of the pressure relief sheet is controlled by setting the thickness, and the rupture pressure value of the pressure relief sheet in the scheme is set between 0.5MPa and 3.2 MPa. Can be set according to actual product specifications.
More specifically, the peripheral wall of the inner shell 13 is provided with a plurality of pressure relief holes 15. Preferably, the number of the pressure relief holes is 1 to 4. In addition, a plurality of the pressure relief holes 15 are closed by a single pressure relief sheet 16. So that the pressure relief sheet is integrated with the inner case. Of course, a structure in which a pressure relief sheet is provided for each pressure relief hole may be adopted, and the same pressure relief effect is also obtained.
In addition, the axes of the plurality of pressure relief holes 15 are located on the same plane. The pressure value of releasing that breaks that can play a plurality of pressure release holes like this is unified, when being favorable to the superpressure to release, can release pressure from a plurality of pressure release holes simultaneously, more effectively protects operating personnel safety.
Of course, a plurality of the pressure relief holes 15 may be vertically arranged along the inner case 13. The pressure relief piece has the advantages that the pressure relief piece can be arranged in the same vertical row, a plurality of holes can be plugged by the pressure relief piece in a strip shape, and the structure is simpler.
In addition, the diameter of the pressure relief hole 15 is 5mm to 15 mm. Likewise, the rupture relief pressure value may be affected as well as the thickness selection of the relief patch.
As shown in fig. 1 and 3, the fire extinguisher further comprises a safety device on the fire extinguisher, the safety device comprises an electronic igniter 4 arranged in an outer cylinder 11 of the fire extinguisher, a button 12 arranged outside the outer cylinder 11 of the fire extinguisher and opposite to the electronic igniter 4, a safety pin 2 inserted between the electronic igniter 4 and the button 12 from outside the outer cylinder 11 of the fire extinguisher and capable of being pulled out, and an initiator 8 electrically connected with the electronic igniter 4 and used for triggering the reaction of a fire extinguishing agent in the fire extinguisher, wherein the initiator 8 is connected with a transmitting end of the electronic igniter 4 through a first lead 6 and connected with a receiving end of the electronic igniter 4 through a second lead 7, a short circuit member 3 is connected between the first lead 6 and the second lead 7, and the safety pin 2 can disconnect the short circuit member 3 from the first lead 6 or the second lead 7 after being pulled out. The utility model provides a fire extinguisher with safe pressure relief device, it has increased the short circuit spare that forms local short circuit between the wire of electronic igniter and initiator, make when the safety pin is installed on the fire extinguisher urceolus, because of the mistake touches, or the button that the transportation extrusion caused presses, the electric current that triggers electronic igniter is by the short circuit spare short circuit, thereby can not trigger the initiator, the effect of insurance has been improved greatly, effectively prevent the mistake start-up of fire extinguisher, reduce the produced loss of transportation. And its simple structure, simple to operate, can prevent the maloperation that arouses from spouting by mistake, can prevent the maloperation that static arouses from spouting by mistake again, still can prevent to beat the maloperation that the collision arouses and spout by mistake, effectively protect fire extinguisher transport, store and carry personnel and operating personnel's safety, and low in manufacturing cost very easily popularizes and applies.
Specifically, the second wire 7 is wound on the safety pin 2, one end of the short circuit piece 3 is communicated with the first wire 6, and the other end of the short circuit piece is connected to the safety pin 2 and is communicated with the second wire 7 through the safety pin 2. Namely, after the safety pin 2 is pulled out, the short circuit piece 3 can be disconnected with the first lead 6, so that the local short circuit between the receiving end and the transmitting end of the electronic igniter is disconnected, and the fire extinguisher can be normally started.
Furthermore, a trigger button 41 is arranged at one end of the electronic igniter 4 opposite to the button 12, and a through hole for the safety pin 2 to pass through is arranged on the trigger button 41. The pressure required by pressing the trigger button is increased, so that the safety function is improved, and the aim of preventing the misoperation from causing the mis-injection is fulfilled. According to the scheme, the button of the electronic igniter cannot be pressed down when the pressing force is less than or equal to 5kg, so that the aim of preventing misoperation from causing mistaken injection is fulfilled.
In particular, the short-circuit member 3 is a spring. The diameter is between phi 2mm and phi 8mm, the wire diameter is between phi 0.2mm and phi 2.0mm, one end of the spring connected with the first lead 6 is fixed by soldering tin, the other end of the spring is sleeved on the safety pin 2 through an annular structure, so that the safety pin passes through and contacts with the safety pin, and after the safety pin is pulled out, the spring returns under the action of the elasticity of the spring to disconnect with the second lead.
In addition, a pull buckle 1 is further arranged on the lower end face of the fire extinguisher outer cylinder 11, and the pull buckle 1 is connected with one end of a safety pin 2 in the fire extinguisher outer cylinder 11. The outside can be pulled out together with the safety pin by pulling the pull buckle 1, and the structure is simple and the operation is convenient.
Moreover, the safety pin 2 is made of metal materials, and the diameter of the safety pin is 0.3-2 mm. The diameter can be set according to the pressing resistance, for example, in the present embodiment, the pressing resistance is 5kg, and the diameter is controlled to be 1.5 mm.
This scheme safeties still has the effect of preventing static, if fire extinguisher has static to produce, is in the effect 8 first wire 6 of electric initiator and second wire 7 because spring, safety pin 2 make 8 local short circuits of electric initiator, and the spring with 2 resistances of safety pin are less than far away the resistance of electric initiator 8, static electric current in the twinkling of an eye can only be followed spring and safety pin 2 are through disappearing, can not start electric initiator 8.
If the fire extinguisher is thrown or collided by gravity and overcomes the strength of the safety pin 2 to press the trigger button of the electronic igniter 4 to generate instantaneous pulse voltage, because the spring and the safety pin 2 form local short circuit between the electric initiator 8 and the transmitting end and the receiving end of the electronic igniter 4, and the resistance of the spring and the safety pin 2 is far smaller than that of the electric initiator 8, the instantaneous pulse voltage can only pass through the spring and the safety pin 2 from the transmitting end of the electronic igniter 4 and return to the receiving end of the electronic igniter 4, and the electric initiator 8 can not be started;
when a fire extinguisher needs to be used for extinguishing fire, the pull buckle 1 is taken out firstly, the lower pull belt is taken out of the safety pin 2, and the spring bounces open, so that the second lead 7 of the electric initiator 8 is disconnected with the first lead of the electric initiator 8, and the transmitting end of the electronic igniter 4 is disconnected with the receiving end of the electronic igniter 4; the second lead 7 of the electric initiator 8 is in a passage with the lead end of the transmitting end of the electronic igniter 4, and the receiving end of the electronic igniter 4 is in a passage with the first lead 6 of the electric initiator 8. The electric initiator 8 is in a cocked state, and the electronic igniter 4 is also in a cocked state. The key 12 is pressed, the key 12 pushes a trigger button of the electronic igniter 4 to generate instant pulse voltage to start the electric initiator 8 to activate the hot aerosol medicine block 10 to burn quickly and combine with the coolant 20 to generate a large amount of aerosol gas, and the aerosol gas is sprayed out of the plug 21 from the nozzle 22 through the filter screen 23 to extinguish a fire.
Moreover, this scheme elasticity pressure release mechanism 14 is including locating 13 terminal surfaces of inner shell and the filter screen relative with the spout to and locate the compression spring between spout and the filter screen.
After the fire extinguisher is started, the electric initiator 8 activates the hot aerosol medicine block 10 to rapidly burn and combine with the coolant 20 to generate a large amount of aerosol gas to be sprayed out of the nozzle 22 and the plug 21 through the filter screen. If the filter screen is blocked by aerosol ash, the pressure in the inner eliminating shell 13 is increased, the filter screen moves forwards under the action of pressure against the elastic force of a pressure spring, and the pressure is released from a gap between the filter screen and the inner shell; if the gap is blocked, the pressure in the inner shell increases again, the pressure rises continuously to the set safe release pressure, and the release sheet is broken under the pushing of a large amount of aerosol gas and released from the broken part, so that the fire-fighting device is protected from being broken by the pressure, and the safety of operators is guaranteed.
The utility model provides a fire extinguisher with safe pressure relief device, it utilizes traditional elasticity pressure relief mechanism to go on after being blockked up the filter screen, bulldozes the filter screen from carrying out the pressure release to keep lasting blowout of medium of putting out a fire, if block up the back once more, inside crescent pressure can break the pressure release piece earlier, thereby from pressure release hole pressure release, protection fire extinguishing device can not lead to being broken by pressure because of being blockked up, guarantee operating personnel safety. The problem of in the past fire control extinguishing device because spring safety pressure relief device opens the pressure unstable, influences its superpressure and releases, influences operating personnel's safety when fire control extinguishing device uses even is solved. Simple structure, reliable, simple to operate, safe pressure release pressure unanimous, stable, can not take place blocking phenomenon once more, can effectively protect fire extinguishing device and operating personnel's safety, and low in manufacturing cost, the easy popularization and application of level.
The foregoing is illustrative of one or more embodiments provided in connection with the detailed description and is not to be construed as limiting the invention to the precise embodiments disclosed herein. All with the utility model discloses a method, structure etc. are similar, the same, or to the utility model discloses make a plurality of technological deductions under the design prerequisite, or the replacement should all regard as the utility model discloses a protection scope.
Claims (8)
1. Fire extinguisher with safe pressure relief device, its characterized in that includes fire extinguisher urceolus (11), locates inner shell (13) that are used for installing the medium of putting out a fire in fire extinguisher urceolus (11), locates spout (22) on fire extinguisher urceolus (11) and is used for the shutoff end cap (21) of spout (22), the relative spout (22) one end of inner shell (13) is the through-hole, and through-hole department is equipped with elasticity pressure release mechanism (14), still be equipped with second pressure release mechanism on inner shell (13), second pressure release mechanism is including pressure release hole (15) of locating on the inner shell perisporium and pressure release piece (16) that are used for shutoff pressure release hole (15).
2. A fire extinguisher with a safety pressure relief device as claimed in claim 1, wherein the pressure relief piece (16) is bonded to the inner wall of the inner case (13).
3. The fire extinguisher with safety pressure relief device according to claim 1, characterized in that the pressure relief sheet (16) is a metal membrane or a metal foil with a thickness of 0.01mm to 0.5 mm.
4. A fire extinguisher with safety pressure relief device as claimed in claim 1, characterized in that a plurality of said pressure relief holes (15) are provided on the peripheral wall of said inner case (13).
5. A fire extinguisher with a safety pressure relief device as claimed in claim 4, characterized in that a plurality of said pressure relief holes (15) are blocked by a single pressure relief piece (16).
6. A fire extinguisher with safety pressure relief device according to claim 4, characterized in that the axes of a plurality of said pressure relief holes (15) are located on the same plane.
7. A fire extinguisher with safety pressure relief device according to claim 4, characterized in that a plurality of said pressure relief holes (15) are vertically arranged along the inner shell (13).
8. A fire extinguisher with a safety pressure relief device according to claim 4, characterized in that the diameter of the pressure relief hole (15) is 5mm to 15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020102762.3U CN212282627U (en) | 2020-01-16 | 2020-01-16 | Fire extinguisher with safety pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020102762.3U CN212282627U (en) | 2020-01-16 | 2020-01-16 | Fire extinguisher with safety pressure relief device |
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| Publication Number | Publication Date |
|---|---|
| CN212282627U true CN212282627U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020102762.3U Active CN212282627U (en) | 2020-01-16 | 2020-01-16 | Fire extinguisher with safety pressure relief device |
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| CN (1) | CN212282627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870300A (en) * | 2022-04-24 | 2022-08-09 | 李双庆 | Non-pulse type aerosol fire extinguisher |
| CN117052647A (en) * | 2023-10-11 | 2023-11-14 | 巨鹿县信达机械制造有限公司 | Explosion-proof petroleum fracturing plunger pump |
-
2020
- 2020-01-16 CN CN202020102762.3U patent/CN212282627U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870300A (en) * | 2022-04-24 | 2022-08-09 | 李双庆 | Non-pulse type aerosol fire extinguisher |
| CN117052647A (en) * | 2023-10-11 | 2023-11-14 | 巨鹿县信达机械制造有限公司 | Explosion-proof petroleum fracturing plunger pump |
| CN117052647B (en) * | 2023-10-11 | 2023-12-29 | 巨鹿县信达机械制造有限公司 | Explosion-proof petroleum fracturing plunger pump |
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