A throwing fire extinguishing device based on superfine dry powder medium
By designing an ultra-fine dry powder media spraying fire extinguishing device and utilizing components such as control chips and gas generators, the operational hazards and high costs of traditional fire extinguishers in complex fire scenes and confined spaces have been solved, achieving safe and flexible fire extinguishing effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU HUATI TECHNOLOGY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional handheld fire extinguishers are dangerous to operate in complex fire environments. In confined spaces, the reaction force of the spray is unbalanced, making it difficult for smoke to escape and increasing the risk of suffocation. In addition, fire protection systems are expensive.
Design a fire extinguishing device based on ultrafine dry powder medium, including a control chip, a gas generator, an airbag, a gas guide tube, and an electronic ignition head. The gas generator is activated by the control chip after a delay, generating gas to expand the airbag and inflate the outer shell, uniformly distributing the extinguishing agent, avoiding airbag explosion, and adapting to different spatial layouts.
It enables safe and flexible firefighting in complex fire environments, reduces the risk of asphyxiation and firefighting costs, adapts to various firefighting scenarios, and improves safety and flexibility.
Smart Images
Figure CN224357938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection technology, and more specifically, to a fire extinguishing device based on ultrafine dry powder medium. Background Technology
[0002] Fire extinguishing devices are a general term for equipment and systems used to extinguish fires. Their core function is to inhibit or eliminate fires through physical, chemical, or electrochemical means. They play an irreplaceable and crucial role in protecting people's lives and property and maintaining social stability. However, existing fire extinguishing devices still have the following shortcomings:
[0003] Traditional handheld fire extinguishers require operators to be close to the fire source. However, fire environments are complex and variable, posing potential threats such as high-temperature radiation, smoke asphyxiation, and explosive impacts. Furthermore, in enclosed spaces like basements, elevator shafts, and ship cabins, the reaction force generated by the spray from traditional fire extinguishers can cause operators to lose their balance, and smoke is difficult to expel quickly, increasing the risk of asphyxiation. Additionally, fire suppression systems using these extinguishing systems are costly. Therefore, a fire extinguishing device based on ultrafine dry powder is proposed. Utility Model Content
[0004] The purpose of this utility model is to address the problems of existing fire extinguishing devices based on ultra-fine dry powder media. Traditional handheld fire extinguishers require operators to be close to the fire source, but fire environments are complex and changeable, with potential threats such as high temperature radiation, smoke asphyxiation, and explosive impact. Furthermore, in enclosed spaces such as basements, elevator shafts, and ship cabins, the reaction force generated by the spray of traditional fire extinguishers may cause operators to lose their balance, and smoke is difficult to expel quickly, increasing the risk of asphyxiation. In addition, the cost of fire extinguishing systems is relatively high.
[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0006] The present invention is as follows: a fire extinguishing device based on ultrafine dry powder medium, comprising a shell, characterized in that a control chip is provided at one end inside the shell, a gas generator is provided inside the shell, an airbag is provided outside the gas generator, a gas guide tube is provided inside the shell, a front end plug is provided at one end of the gas guide tube, a tail end cap is provided at the other end of the gas guide tube, and an electronic ignition head is provided on one side of the tail end cap.
[0007] As a preferred technical solution of this utility model, one end of the outer shell is provided with a cartridge case, and the other end of the outer shell is provided with a tail cap connection end.
[0008] As a preferred technical solution of this utility model, a partition head is provided on one side of the gas guide tube.
[0009] As a preferred technical solution of this utility model, one end of the outer shell is hemispherical, and the shape of the outer shell is a straight cylindrical structure with one end hemispherical.
[0010] As a preferred technical solution of this utility model, the gas generator and the outside of the airbag are provided with fire extinguishing agent.
[0011] As a preferred technical solution of this utility model, the interior of the outer shell is provided with a cavity, and a detonator is provided at the bottom of the central axis inside the outer shell.
[0012] As a preferred technical solution of this utility model, the outer shell is made of PVC and the airbag is made of aramid fiber.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] The system consists of a control chip, gas generator, airbag, gas guide tube, front end cap, rear end cap, and electronic ignition head. During operation, a start signal is manually sent from the signal terminal. The control chip, after a pre-set delay, sends a command to the gas generator to activate it. The electronic ignition head ignites the internal chemical substances to produce gas. This gas is then transported to the airbag through the gas guide tube. The airbag inflates, opening the outer shell, which cracks evenly. The airbag has a vent to prevent excessive pressure from causing an explosion that could injure people. The inflated airbag evenly distributes the ultrafine fire extinguishing powder across the fire scene, effectively extinguishing the fire, reducing safety hazards, and significantly decreasing the risk of fire spread. Attached Figure Description
[0015] Figure 1 A schematic diagram of the structure of the fire extinguishing device based on ultrafine dry powder medium provided by this utility model;
[0016] Figure 2 A schematic diagram of the gas guide pipe, front end plug, and tail end cap structure of the fire extinguishing device based on ultrafine dry powder medium provided by this utility model.
[0017] The diagram shows: 1. Outer shell; 2. Control chip; 3. Gas generator; 4. Airbag; 5. Gas guide tube; 6. Front end plug; 7. Tail end cap; 8. Electronic ignition head; 9. Cartridge shell; 10. Tail end cap connection end; 11. Partition head. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0019] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0020] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0022] like Figure 1 and Figure 2As shown, this embodiment proposes a fire extinguishing device based on ultrafine dry powder medium, including a shell 1 for storage in the unactivated state. A control chip 2 is installed at one end inside the shell 1. A gas generator 3 is installed inside the shell 1, and an airbag 4 is installed outside the gas generator 3. A gas guide tube 5 is installed inside the shell 1. The function of the gas guide tube 5 is to guide gas from the airbag 4 to the outlet to ensure that the gas can fully inflate the airbag 4. A front plug 6 is installed at one end of the gas guide tube 5, which is the closed end of the gas guide tube 5, used to control the gas flow and prevent gas leakage or ineffective flow when necessary. A tail cap 7 is installed at the other end of the gas guide tube 5, which is the closed part of the other end of the gas guide tube 5, ensuring that the gas is correctly released from the gas guide tube 5 and preventing gas leakage to areas where it should not leak. An electronic ignition head 8 is installed on one side of the tail cap 7. The control chip 2 is responsible for activating the signal of the manual operation terminal platform and controlling the electronic ignition head 8. The chemical substance is ignited, and the gas generator 3 activates the gas, causing the airbag 4 to expand directly, thus evenly distributing the fire extinguishing dry powder. The safety airbag is designed with a rupture point to prevent excessive pressure from causing an explosion that could injure people. The electronic ignition head 8 is used to ignite the chemical substance in the gas generator 3, triggering the generation and release of gas, thereby initiating the fire extinguishing process. During use, the manual operation terminal platform sends a command signal. Upon receiving the signal, the control chip 2 controls the electronic ignition head 8 to ignite the chemical substance. The chemical substance triggers the release of gas, causing the airbag 4 to fully expand and rupture. The end cap 6 at the front of the gas guide tube 5 controls the gas flow direction, and the end cap 7 at the rear assists in the release of gas. The airbag 4 expands, breaking through the outer shell 1, causing the outer shell 1 to split into three square fragments. This allows the fire extinguishing dry powder around the airbag 4 to be scattered to the surrounding area and sprayed onto the fire source, achieving fire extinguishing, reducing safety hazards, significantly reducing the risk of fire spread, saving on firefighter training and emergency response costs, improving safety assurance, and the device is very flexible to adapt to different fire extinguishing scenarios and spatial layouts.
[0023] like Figure 2 As shown, one end of the outer casing 1 is provided with a cartridge case 9, and the other end of the outer casing 1 is provided with a tail cap connection end 10. The cartridge case 9 contains a control chip 3. By pre-setting a tear, the outer casing 1 is made to crack in the expected way without breaking into fragments that could injure people, thus preventing the flying of explosion fragments and ensuring the stability and safety of the device during startup. The main function of the tail cap connection end 10 is to seal the tail of the device to prevent external air, dust or moisture from entering the device and to protect the internal components from contamination or damage.
[0024] like Figure 2As shown, a partition head 11 is provided on one side of the gas guide tube 5. In the untriggered state, the partition head 11 completely isolates the gas generator 3 from the dry powder, avoiding accidental reaction of the agent due to changes in ambient temperature or vibration, and improving the long-term storage stability of the device.
[0025] like Figure 1 As shown, the outer shell 1 has a hemispherical straight cylindrical structure with one end. When subjected to internal high pressure, the hemispherical shape provides uniform stress distribution, avoiding local stress concentration that could lead to cracking. The straight cylindrical structure has higher bending stiffness when subjected to external forces, preventing deformation of the device during transportation or installation.
[0026] like Figure 1 As shown, the gas generator 3 and the airbag 4 are equipped with an extinguishing agent. Upon activation, the gas generator 3 produces a large amount of gas, inflating the airbag 4 and propelling the ultrafine dry powder. With the extinguishing agent outside, the temperature around the gas generator 3 rises rapidly when the device is activated, potentially causing a localized fire or exacerbating its spread. The external extinguishing agent can function from the initial activation of the gas generator 3, promptly extinguishing any flames that may be ignited by the high temperature, preventing further fire spread, and buying time for subsequent comprehensive extinguishing with the ultrafine dry powder.
[0027] like Figure 1 As shown, the interior of the outer shell 1 is provided with a cavity. A detonator is installed at the bottom of the central axis inside the outer shell 1. The control chip 2 controls the discharge to trigger the detonator to explode. The detonator explosion ignites the gas generator 3. The gas generator 3 instantly generates a large amount of high-pressure and high-temperature gas, which causes the airbag 4 to expand. The expansion of the airbag 4 explodes the cartridge case 9, and at the same time, the fire extinguishing agent is released.
[0028] like Figure 1 As shown, the outer shell 1 is made of PVC and the airbag 4 is made of aramid fiber, which can ensure the long-term stable operation of the fire extinguishing device, extend the service life of the device, and reduce the maintenance and replacement costs caused by corrosion of the outer shell 1.
[0029] Specifically, the application scenario of this ultra-fine dry powder-based fire extinguishing device is as follows: During use, a manual operation terminal platform sends a command signal. Upon receiving the signal, the propeller component sends the device into the fire scene. The control chip 2 controls the electronic igniter 8 to ignite the chemical substance according to a pre-set delay time. The chemical substance triggers the release of gas, causing the airbag 4 to fully inflate and rupture. The end cap 6 of the gas guide tube 5 controls the gas flow direction, and the tail cap 7 assists in releasing the gas. The airbag 4 inflates, rupturing the outer shell 1. The safety airbag has a rupture point to prevent excessive pressure and potential explosion that could injure people. This causes the outer shell 1 to split into three square fragments, allowing the fire extinguishing dry powder around the airbag 4 to be scattered to the surrounding area, achieving fire extinguishing, reducing safety hazards, significantly reducing the risk of fire spread, saving on firefighter training and emergency response costs, improving safety, and the device is highly flexible to adapt to different fire extinguishing scenarios and spatial layouts (such as...). Figure 1 and Figure 2 (As shown).
[0030] All technical features in this embodiment can be freely combined according to actual needs.
[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A fire extinguishing device based on ultrafine dry powder medium, comprising a shell (1), characterized in that, A control chip (2) is provided at one end of the housing (1). A gas generator (3) is provided inside the housing (1). An airbag (4) is provided outside the gas generator (3). A gas guide tube (5) is provided inside the housing (1). A front end plug (6) is provided at one end of the gas guide tube (5). A tail end cap (7) is provided at the other end of the gas guide tube (5). An electronic ignition head (8) is provided on one side of the tail end cap (7).
2. The fire extinguishing device based on ultrafine dry powder medium according to claim 1, characterized in that, One end of the outer shell (1) is provided with a cartridge case (9), and the other end of the outer shell (1) is provided with a tail cap connection end (10).
3. The fire extinguishing device based on ultrafine dry powder medium according to claim 1, characterized in that, A partition head (11) is provided on one side of the gas guide tube (5).
4. The fire extinguishing device based on ultrafine dry powder medium according to claim 1, characterized in that, The outer shell (1) has a structure that is a straight cylindrical shape with one end that is hemispherical.
5. A fire extinguishing device based on ultrafine dry powder medium according to claim 1, characterized in that, The gas generator (3) and the airbag (4) are equipped with fire extinguishing agents.
6. The fire extinguishing device based on ultrafine dry powder medium according to claim 1, characterized in that, The shell (1) has an internal cavity, and a detonator is installed at the bottom of the central axis inside the shell (1).
7. A fire extinguishing device based on ultrafine dry powder medium according to claim 1, characterized in that, The outer shell (1) is made of PVC, and the airbag (4) is made of aramid fiber.