Self-generating dry powder fire extinguisher

Abstract

The utility model discloses a kind of self-generating dry powder fire extinguisher, including fire extinguisher shell, the inside of fire extinguisher shell is equipped with power generation component and release limit position component;Release limit position component is installed in the power generation component in one end, the other end is installed in the top of fire extinguisher shell, and release pull ring is connected with outward extension;The inside of fire extinguisher shell is equipped with the storage box of storage gas generating agent, the storage box is equipped with the electric ignition head of the electric connection of power generation component.In the internal pressure drop of fire extinguisher shell, by release pull ring drive release limit position component release limit, the impact current is generated in the inside of power generation component and ignites electric ignition head, after electric ignition head detonates the gas generating agent, a large amount of high-pressure gas is generated instantaneously, to enhance the internal pressure of fire extinguisher shell, without maintenance or replacement, to extend the service life of dry powder fire extinguisher.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguisher technology, specifically to a self-produced dry powder fire extinguisher. Background Technology

[0002] All existing portable dry powder fire extinguishers are pressurized, meaning the extinguishing agent is stored in the lower part of the cylinder, while the upper part is filled with compressed nitrogen to power the spray. Over time, the compressed nitrogen inside the cylinder slowly leaks, causing the pressure inside to gradually decrease. When the pressure drops to a certain level, the fire extinguisher becomes unusable, requiring repair or replacement. This repair or replacement cycle is at most three years. However, during repair or replacement, the extinguishing agent inside the cylinder does not become ineffective, leading to waste of the extinguishing agent. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a self-generating dry powder fire extinguisher that can instantly generate a large amount of high-pressure gas in the cylinder even if the pressure inside the cylinder is reduced due to nitrogen leakage, without the need for maintenance or replacement, thereby extending the service life of the dry powder fire extinguisher.

[0004] A self-produced dry powder fire extinguisher includes a fire extinguisher shell, wherein a power generation component and a release and limit switch component are installed inside the fire extinguisher shell.

[0005] One end of the release limit assembly is installed in the power generation assembly, and the other end is installed on the top of the fire extinguisher shell, extending outward and connected to a release pull ring;

[0006] The fire extinguisher housing has an internal storage box for storing the gas-generating agent, and the storage box contains an electric ignition head that is electrically connected to the power generation component;

[0007] When the release ring causes the release limit component to release its limit, an impulse current is generated inside the power generation component and ignites the electric igniter. The electric igniter detonates the gas-generating agent and instantly generates a large amount of high-pressure gas to increase the internal gas pressure of the fire extinguisher shell.

[0008] Preferably, the power generation component includes a magnetoelectric base, the magnetoelectric base having a top pressure screw and a bottom pressure screw;

[0009] A power generation coil is installed between the bottom pressure screw and the magnetoelectric base. A power generation core is passed through the bottom pressure screw, the power generation coil and the top pressure screw. A power generation spring is sleeved on the power generation core.

[0010] The limiting end of the release and limiting component is located in the magnetoelectric base and locks the generator core, so that the generator spring is in a compressed state and is located between the upper part of the generator core and the top pressure screw;

[0011] When the limit release component releases the limit, the power generation spring forcefully impacts the power generation core, and the power generation core quickly passes through the power generation coil to generate an impulse current.

[0012] Preferably, the release and limiting assembly includes a sealing pull pin installed on the top of the fire extinguisher housing, a release pin installed in the magnetoelectric base, and a limiting element embedded in the magnetoelectric base;

[0013] The outer end of the sealing pull pin is connected to the release pull ring via an outer connecting rope, and the inner end is connected to the release pin via an inner connecting rope.

[0014] The limiting element is positioned between the release pin and the generator core. When the release ring moves the release pin upward from the magnetoelectric base via the sealing pull pin, the limiting element releases the limiting effect on the generator core.

[0015] Preferably, a limiting part is provided on the side wall of the generator core, and the side wall of the limiting part has an inwardly concave arc-shaped structure;

[0016] The limiting element is spherical, or one end near the limiting part is a convex arc-shaped structure.

[0017] Preferably, the sidewall of the generator core is provided with a limiting part, the sidewall of the limiting part is a concave V-shaped structure, and the end of the limiting element near the limiting part is a convex V-shaped structure.

[0018] Preferably, the sidewall of the generator core is provided with a limiting part, the sidewall of the limiting part is an upper inclined surface structure, and the end of the limiting element near the limiting part is a lower inclined surface structure.

[0019] Preferably, the fire extinguisher housing is provided with a siphon tube, and the magnetic generator base is installed on the siphon tube.

[0020] Preferably, the top of the fire extinguisher casing is provided with a sealing cap, and the sealing cap is provided with a bottle valve;

[0021] A pressure gauge is provided on one side of the bottle valve, and the pressure gauge is connected to the siphon tube;

[0022] The other side of the bottle valve is provided with a nozzle that communicates with the siphon tube, and the nozzle is provided with a handle.

[0023] Preferably, the magnetoelectric base is installed on the inner wall of the fire extinguisher housing.

[0024] Preferably, the gas-generating agent is an airbag gas-generating agent for automobiles.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] When the internal air pressure of the fire extinguisher casing drops, the release ring drives the release limit component to release the limit. The internal current of the power generation component generates an impulse current and ignites the electric igniter. The electric igniter detonates the gas-generating agent and instantly generates a large amount of high-pressure gas to increase the internal air pressure of the fire extinguisher casing. No maintenance or replacement is required, thereby extending the service life of the dry powder fire extinguisher. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of a self-produced dry powder fire extinguisher in one embodiment of the present invention;

[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0029] Explanation of key component symbols:

[0030] 10-Fire extinguisher housing; 11-Power generation assembly; 111-Magnetic power generation base; 112-Top pressure screw; 113-Bottom pressure screw; 114-Power generation coil; 115-Power generation core; 116-Power generation spring; 12-Limit release assembly; 121-Sealing pull pin; 122-Limit release pin; 123-Limit element; 13-Limit release ring; 14-Storage box; 15-Electric igniter head; 16-Siphon tube; 17-Sealing cap; 18-Bottle valve; 19-Pressure gauge; 20-Nozzle; 21-Handle; 22-Fire extinguishing pull pin; 23-Fire extinguishing agent.

[0031] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0032] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0033] Please see Figure 1 and Figure 2 A self-produced dry powder fire extinguisher provided in one embodiment of the present invention includes a fire extinguisher shell 10, wherein a power generation component 11 and a release and limit component 12 are installed inside the fire extinguisher shell 10.

[0034] One end of the release limit assembly 12 is installed in the power generation assembly 11, and the other end is installed on the top of the fire extinguisher shell, and extends outward and is connected to the release pull ring 13;

[0035] The fire extinguisher housing 10 has a storage box 14 for storing the gas-generating agent inside, and the storage box 14 has an electric ignition head 15 that is electrically connected to the power generation component 11.

[0036] It should be noted that in this application, when the internal air pressure of the fire extinguisher housing 10 drops, the release ring 13 drives the release limit assembly 12 to release the limit, and the internal of the power generation assembly 11 generates an impact current and ignites the electric ignition head 15. After the electric ignition head 15 detonates the gas generating agent, it instantly generates a large amount of high-pressure gas to enhance the internal air pressure of the fire extinguisher housing 10. No maintenance or replacement is required, thereby extending the service life of the dry powder fire extinguisher.

[0037] Please see Figure 1 and Figure 2 The power generation component 11 includes a magnetoelectric base 111, the top of which is provided with a top pressure screw 112 and the bottom of which is provided with a bottom pressure screw 113;

[0038] A power generation coil 114 is installed between the bottom pressure screw 113 and the magnetoelectric base 111. A power generation core 115 is passed through the bottom pressure screw 113, the power generation coil 114 and the top pressure screw 112. A power generation spring 116 is sleeved on the power generation core 115.

[0039] The limiting end of the release and limiting component 12 is located in the magnetoelectric base 111 and locks the generator core 115, so that the generator spring 116 is in a compressed state and is located between the upper part of the generator core 115 and the top pressure screw 112.

[0040] It should be noted that when the limiting component 12 is released, the power generation spring 116 changes from a compressed state to a free state under the action of its own elastic restoring force, and forcefully impacts the power generation core 115, causing the power generation core 115 to move downward. The power generation core 115 quickly passes through the power generation coil 114 to generate an impact current. The current ignites the electric ignition head 15, and the electric ignition head 15 detonates the gas generating agent and instantly generates a large amount of high-pressure gas.

[0041] Please see Figure 1 and Figure 2 The release and limiting assembly 12 includes a sealing pull pin 121 installed on the top of the fire extinguisher housing 10, a release pin 122 installed in the magnetoelectric base 111, and a limiting element 123 embedded in the magnetoelectric base 111;

[0042] The outer end of the sealing pull pin 121 is connected to the release pull ring 13 via an outer connecting rope, and the inner end is connected to the release pin 122 via an inner connecting rope;

[0043] The limiting element 123 is engaged between the release pin 122 and the generator core 115. When the release pull ring 13 drives the release pin 122 to move upward from the magnetoelectric base 111 through the sealing pull pin 121, the limiting element 123 releases the limiting of the generator core 115.

[0044] It should be noted that the limiting element 123 releases the limiting element 123 from the generator core 115. Under the action of its own elastic restoring force, the generator spring 116 changes from a compressed state to a free state and forcefully impacts the generator core 115, causing the generator core 115 to move downward. The generator core 115 squeezes the limiting element 123 into the side receiving hole. Then, the generator core 115 quickly passes through the generator coil 114 to generate an impact current. The current ignites the electric igniter 15. The electric igniter 15 detonates the gas-generating agent and instantly generates a large amount of high-pressure gas.

[0045] Please see Figure 1 and Figure 2 In a preferred embodiment of this application, a limiting part is provided on the side wall of the electromagnetic core 115, and the side wall of the limiting part is a concave arc-shaped structure.

[0046] The limiting element 123 is spherical, or one end near the limiting part is a convex arc-shaped structure. Through the cooperation of the arc-shaped structure, the limiting element 123 can be easily squeezed into the receiving hole by the electromagnetic core 115, so as to avoid affecting the downward sliding of the electromagnetic core 115.

[0047] In a preferred embodiment of this application, a limiting part is provided on the side wall of the generator core 115. The side wall of the limiting part is a concave V-shaped structure, and the end of the limiting element 123 near the limiting part is a convex V-shaped structure. Through the cooperation of the V-shaped structure, the limiting element 123 can be easily squeezed into the receiving hole by the generator core 115, so as to avoid affecting the downward sliding of the generator core 115.

[0048] In another preferred embodiment of this application, a limiting part is provided on the side wall of the generator core 115. The side wall of the limiting part is an upper inclined surface structure, and the end of the limiting element 123 near the limiting part is a lower inclined surface structure. Through the cooperation of the inclined surface structure, the limiting element 123 can be easily squeezed into the receiving hole by the generator core 115, so as to avoid affecting the downward sliding of the generator core 115.

[0049] Please see Figure 1 and Figure 2The fire extinguisher housing 10 is provided with a siphon tube 16, and the magnetic generator base 111 is installed on the siphon tube 16. During installation, the magnetic generator base 111 can be installed on the siphon tube 16 first, and then the whole assembly can be installed into the fire extinguisher housing 10, making installation more convenient.

[0050] In another preferred embodiment of this application, the magnetoelectric base 111 is installed on the inner wall of the fire extinguisher housing 10.

[0051] Please see Figure 1 The top of the fire extinguisher housing 10 is provided with a sealing cover 17, and a bottle valve 18 is provided in the sealing cover 17;

[0052] A pressure gauge 19 is provided on one side of the bottle valve 18, and the pressure gauge 19 is connected to the siphon tube 16;

[0053] On the other side of the bottle valve 18, there is a nozzle 20 that communicates with the siphon tube 16, and the nozzle 20 is provided with a handle 21.

[0054] Specifically, the pressure gauge 19 monitors the internal gas pressure of the fire extinguisher housing 10 in real time. After the electric igniter 15 detonates the gas-generating agent, a large amount of high-pressure gas is instantly generated. The high-pressure gas passes through the extinguishing agent 23 and reaches the upper space of the fire extinguisher housing 10. At this time, the extinguishing pin 22 on the handle 21 is pulled open, and the handle 21 is pressed firmly to open the valve in the nozzle 20. The extinguishing agent 23 is then sprayed out through the nozzle 20, thereby achieving the purpose of extinguishing the fire.

[0055] In a preferred embodiment of this application, the gas-generating agent is an automotive airbag gas-generating agent. Automotive airbag gas-generating agents mainly include substances such as sodium azide (NaN3), ammonium nitrate (NH4NO3), potassium perchlorate (KClO4), and sodium bicarbonate (NaHCO3). When ignited by the electric igniter, these substances rapidly decompose to produce a large amount of high-pressure nitrogen gas. Because the gas-generating agent is placed at the bottom of the fire extinguisher casing, after ignition, it produces a large amount of high-pressure gas that sprays upwards. Even if the extinguishing agent is damp and clumps together, it will be broken up and the extinguishing agent can still be used normally.

[0056] It should be further noted that the fire extinguisher casing may not be filled with nitrogen; during use, the extinguishing agent is sprayed entirely by the gas generated by the gas-generating agent.

[0057] In summary, when the internal air pressure of the fire extinguisher housing 10 drops, the release ring 13 drives the release limit assembly 12 to release its limit. The generator assembly 11 generates an impulse current and ignites the electric igniter head 15. The electric igniter head 15 detonates the gas-generating agent and instantly generates a large amount of high-pressure gas to increase the internal air pressure of the fire extinguisher housing 10. No maintenance or replacement is required, thereby extending the service life of the dry powder fire extinguisher.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-produced dry powder fire extinguisher, comprising a fire extinguisher shell, characterized in that, The fire extinguisher housing is equipped with a power generation component and a limit release component. One end of the release limit assembly is installed in the power generation assembly, and the other end is installed on the top of the fire extinguisher shell, extending outward and connected to a release pull ring; The fire extinguisher housing has an internal storage box for storing the gas-generating agent, and the storage box contains an electric ignition head that is electrically connected to the power generation component; When the release ring causes the release limit component to release its limit, an impulse current is generated inside the power generation component and ignites the electric igniter. The electric igniter detonates the gas-generating agent and instantly generates a large amount of high-pressure gas to increase the internal gas pressure of the fire extinguisher shell.

2. The self-produced dry powder fire extinguisher according to claim 1, characterized in that, The power generation component includes a magnetic power generation base, which has a top pressure screw and a bottom pressure screw. A power generation coil is installed between the bottom pressure screw and the magnetoelectric base. A power generation core is passed through the bottom pressure screw, the power generation coil and the top pressure screw. A power generation spring is sleeved on the power generation core. The limiting end of the release and limiting component is located in the magnetoelectric base and locks the generator core, so that the generator spring is in a compressed state and is located between the upper part of the generator core and the top pressure screw; When the limit release component releases the limit, the power generation spring forcefully impacts the power generation core, and the power generation core quickly passes through the power generation coil to generate an impulse current.

3. The self-produced dry powder fire extinguisher according to claim 2, characterized in that, The release and limiting assembly includes a sealing pull pin installed on the top of the fire extinguisher housing, a release pin installed in the magnetoelectric base, and a limiting element embedded in the magnetoelectric base; The outer end of the sealing pull pin is connected to the release pull ring via an outer connecting rope, and the inner end is connected to the release pin via an inner connecting rope. The limiting element is positioned between the release pin and the generator core. When the release ring moves the release pin upward from the magnetoelectric base via the sealing pull pin, the limiting element releases the limiting effect on the generator core.

4. The self-produced dry powder fire extinguisher according to claim 3, characterized in that, The side wall of the generator core is provided with a limiting part, and the side wall of the limiting part is a concave arc-shaped structure; The limiting element is spherical, or one end near the limiting part is a convex arc-shaped structure.

5. The self-produced dry powder fire extinguisher according to claim 3, characterized in that, The sidewall of the generator core is provided with a limiting part, the sidewall of the limiting part is a concave V-shaped structure, and the end of the limiting element near the limiting part is a convex V-shaped structure.

6. The self-produced dry powder fire extinguisher according to claim 3, characterized in that, The side wall of the generator core is provided with a limiting part, the side wall of the limiting part is an upper inclined surface structure, and the end of the limiting element near the limiting part is a lower inclined surface structure.

7. The self-produced dry powder fire extinguisher according to claim 3, characterized in that, The fire extinguisher housing is equipped with a siphon tube, and the magnetic generator base is installed on the siphon tube.

8. The self-produced dry powder fire extinguisher according to claim 7, characterized in that, The fire extinguisher casing is provided with a sealing cap on the top, and a bottle valve is provided in the sealing cap; A pressure gauge is provided on one side of the bottle valve, and the pressure gauge is connected to the siphon tube; The other side of the bottle valve is provided with a nozzle that communicates with the siphon tube, and the nozzle is provided with a handle.

9. The self-produced dry powder fire extinguisher according to claim 2, characterized in that, The magnetoelectric base is installed on the inner wall of the fire extinguisher casing.

10. The self-produced dry powder fire extinguisher according to any one of claims 1 to 9, characterized in that, The gas-generating agent is a gas-generating agent for automotive airbags.

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