A gas generating assembly for a non-pressurised fire extinguishing device

Abstract

The utility model discloses a kind of gas production assemblies suitable for non-pressure type fire extinguishing device, including plug, plug left side screwing fixed with high-pressure gas cylinder, plug right side screwing fixed with screw sleeve, spring is provided in screw sleeve inside, ejector pin passes through spring and is placed in spring inside, screw sleeve right side is also connected with starting component, still including starting component is composed of screw plug, after hot initiation line and electric ignition wire are inserted into silica gel cover, fixed at screw plug end, the other end of electric ignition wire is connected to wiring harness connector, the utility model has electric, two kinds of starting mode, electric starting mode consumes small energy, and need not continuous power supply;Hot starting can be through the mode of extending hot initiation line, fixed-point protection is carried out to protection area, two kinds of mode are used in combination, can satisfy the actual use demand of user to the maximum, and repeated use function can be realized by replacing high-pressure gas cylinder and starting component.

Description

Technical Field

[0001] This utility model relates to the technical field of gas generating components for fire extinguishing devices, and in particular to a gas generating component suitable for non-pressurized fire extinguishing devices. Background Technology

[0002] Non-pressurized fire extinguishing systems play an increasingly important role in modern firefighting due to their unique design and operating principle. Under normal operating conditions, these systems do not store internal pressure, which not only reduces safety hazards caused by pressure leaks but also lowers maintenance costs and complexity. When a fire occurs, non-pressurized fire extinguishing systems can respond rapidly, generating sufficient gas pressure through an activation mechanism to drive the extinguishing medium to be rapidly ejected for quick fire suppression.

[0003] Currently, the driving element of non-pressurized fire extinguishing devices mainly uses a gas-generating agent. A gas-generating agent is a special chemical substance that, when subjected to electrical, thermal, or other ignition signals, rapidly decomposes and generates a large amount of gas. This gas expands instantaneously, creating sufficient pressure to propel the extinguishing agent through the nozzle, covering the fire source and thus achieving the fire extinguishing effect.

[0004] However, the storage environment for gas-generating agents places strict requirements on their performance. Gas-generating agents need to be stored in a dry, cool, and well-ventilated environment, avoiding moisture or heat. If exposed to moisture, the chemical properties of the gas-generating agent may change, preventing it from igniting properly and thus affecting the fire extinguishing effect of the fire suppression system. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a gas generating component suitable for non-pressurized fire extinguishing devices, which solves the problems of low environmental adaptability, low reliability and limited application scenarios of gas generating components in the prior art.

[0006] A gas generating component suitable for non-pressurized fire extinguishing devices includes a plug, a high-pressure gas cylinder is screwed and fixed to the left side of the plug, a screw sleeve is screwed and fixed to the right side of the plug, a spring is provided inside the screw sleeve, a pin passes through the spring and is placed inside the spring, and an activation component is also connected to the right side of the screw sleeve.

[0007] Furthermore, the starting component consists of a screw plug, with the thermal initiation wire and the electric ignition wire inserted into a silicone sleeve and fixed to the end of the screw plug, and the other end of the electric ignition wire connected to the wiring harness connector.

[0008] Furthermore, the end of the electric ignition wire is flush with the end of the screw plug, and the end of the thermal ignition wire extends beyond the end of the screw plug.

[0009] Furthermore, the thermal initiation wire and electric ignition wire are fixed inside the screw plug with epoxy resin potting, and covered with yellow wax tubing on the outside of the screw plug.

[0010] Furthermore, the high-pressure gas cylinder has a cylindrical metal structure and is filled with nitrogen or carbon dioxide gas at a filling pressure of 4MPa-5.5MPa. The head of the high-pressure gas cylinder is equipped with a threaded structure, and the mouth of the high-pressure gas cylinder is sealed with a stainless steel diaphragm.

[0011] Furthermore, the plug has several through holes at the connection between the high-pressure gas cylinder and the screw sleeve.

[0012] Furthermore, the tip of the ejector pin is provided with a boss for limiting the insertion. The limiting length is such that the ejector pin can pierce the stainless steel diaphragm at the mouth of the gas cylinder while avoiding excessive insertion. The tail of the ejector pin is designed to be concave and is equipped with a sealing ring on the outside.

[0013] Furthermore, the spring can support the ejector pin inside the threaded sleeve when it is not in operation.

[0014] Furthermore, the plug is connected and fixed to the housing of the fire extinguishing device through a threaded structure, and a sealing ring is installed at the bottom of the plug thread.

[0015] The beneficial effects of this utility model are: 1. Using a customized high-pressure gas cylinder as the gas driving source, the driving force can be quantified more accurately while ensuring the device is sealed, providing a basis for determining the performance indicators of related products such as fire extinguishing dosage.

[0016] 2. The ejector pin used in this utility model is made of stainless steel. Its end is a sharp bevel and a venting groove is reserved in the middle, which can ensure that the gas can be discharged smoothly after the ejector pin successfully pierces the high-pressure gas cylinder seal.

[0017] 3. The energy required for the ejector pin to pierce the high-pressure gas cylinder seal is relatively small. Therefore, the ejector pin driving device of this utility model is designed to be miniaturized and lightweight, making it more suitable for various application scenarios.

[0018] 4. This utility model has two starting methods: electric and thermal. The electric starting method consumes less energy and does not require continuous power supply; the thermal starting method can provide fixed-point protection for the protected area by extending the thermal initiation wire. The combination of the two methods can maximize the satisfaction of the user's actual needs.

[0019] 5. This utility model can be reused by replacing the high-pressure gas cylinder and the starting component. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a gas generation component suitable for non-pressurized fire extinguishing devices; Figure 2 This is a schematic diagram of the starting component structure of a gas generation component suitable for non-pressurized fire extinguishing devices.

[0021] In the diagram: 1-High-pressure gas cylinder, 2-Plug, 3-Screw sleeve, 4-Pin, 5-Spring, 6-Starting assembly, 7-Heat initiation wire, 8-Silicone sleeve, 9-Electric ignition wire, 10-Epoxy resin, 11-Screw plug, 12-Yellow wax tube, 13-Wire harness connector. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. It should be noted that in this specification, similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "set," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this embodiment can be understood according to the specific circumstances. The directions or positional relationships indicated by terms such as "up," "down," "left," "right," "inner," and "bottom" are based on the directions or positional relationships shown in the accompanying drawings, or the directions or positional relationships that the product is usually placed in during use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] In this embodiment, as shown in the appendix Figure 1-2 As shown, a gas generating component suitable for non-pressurized fire extinguishing devices includes a plug 2, a high-pressure gas cylinder 1 is screwed and fixed to the left side of the plug 2, a screw sleeve 3 is screwed and fixed to the right side of the plug 2, a spring 5 is provided inside the screw sleeve 3, a pin 4 passes through the spring 5 and is placed inside the spring 5, and an activation component 6 is also connected to the right side of the screw sleeve 3.

[0026] Furthermore, the starting component 6 is composed of a screw plug 11, with the thermal initiation wire 7 and the electric ignition wire 9 inserted into the silicone sleeve 8 and fixed to the end of the screw plug 11. The other end of the electric ignition wire 9 is connected to the wiring harness connector 13.

[0027] Furthermore, the end of the electric ignition wire 9 is flush with the end of the screw plug 11, and the end of the thermal initiation wire 7 extends beyond the end of the screw plug 11.

[0028] Furthermore, the heat-initiating wire 7 and the electric ignition wire 9 are encapsulated and fixed inside the screw plug 11 with epoxy resin 10, and covered outside the screw plug 11 with a yellow wax tube 12.

[0029] Furthermore, the high-pressure gas cylinder 1 is a cylindrical metal cylinder structure, filled with nitrogen or carbon dioxide gas at a filling pressure of 4MPa-5.5MPa. The head of the high-pressure gas cylinder 1 is provided with a threaded structure, and the mouth of the high-pressure gas cylinder 1 is sealed with a stainless steel diaphragm.

[0030] Furthermore, the plug 2 has several through holes at the connection between the high-pressure gas cylinder 1 and the screw sleeve 3.

[0031] Furthermore, the end of the ejector pin 4 is provided with a boss for limiting the insertion. The limiting length is such that the ejector pin 4 can pierce the stainless steel diaphragm at the mouth of the gas cylinder while avoiding excessive insertion. The tail of the ejector pin 4 is designed to be concave and is equipped with a sealing ring on the outside.

[0032] Furthermore, the spring 5 can support the ejector pin 4 inside the threaded sleeve when it is not in operation.

[0033] Furthermore, the plug 2 is connected and fixed to the housing of the fire extinguishing device through a threaded structure, and a sealing ring is installed at the bottom of the thread of the plug 2.

[0034] The specific work process for this application is as follows: After the plug 2 is connected and fixed to the housing of the fire extinguishing device, the starting component 6 can be activated electronically. The process involves an electronic control signal transmitted to the electric ignition wire 9 via the wiring harness connector 13, igniting the ignition head fixed inside the silicone sleeve 8. Once ignited, the ignition head generates pressure in the cavity between the screw plug 11 and the tail of the ejector pin 4, driving the ejector pin 4 to compress the spring 5 and move it along the outlet direction of the screw sleeve 3 until it pierces the stainless steel diaphragm at the mouth of the high-pressure gas cylinder 1. Compressed gas rapidly overflows from the through-hole in the plug 2, forming a pressure source within the fire extinguishing device space, driving the extinguishing medium to spray out. This invention can also be activated via a heat source. When an open flame ignites the heat-initiating wire 7, the flame can ignite the ignition head of the electric ignition wire 9 along the wire, thus driving the ejector pin to pierce the high-pressure gas cylinder and generate gas.

[0035] The beneficial effects of this utility model are: 1. Using a customized high-pressure gas cylinder as the gas driving source, the driving force can be quantified more accurately while ensuring the device is sealed, providing a basis for determining the performance indicators of related products such as fire extinguishing dosage.

[0036] 2. The ejector pin used in this utility model is made of stainless steel. Its end is a sharp bevel and a venting groove is reserved in the middle, which can ensure that the gas can be discharged smoothly after the ejector pin successfully pierces the high-pressure gas cylinder seal.

[0037] 3. The energy required for the ejector pin to pierce the high-pressure gas cylinder seal is relatively small. Therefore, the ejector pin driving device of this utility model is designed to be miniaturized and lightweight, making it more suitable for various application scenarios.

[0038] 4. This utility model has two starting methods: electric and thermal. The electric starting method consumes less energy and does not require continuous power supply; the thermal starting method can provide fixed-point protection for the protected area by extending the thermal initiation wire. The combination of the two methods can maximize the satisfaction of the user's actual needs.

[0039] 5. This utility model can be reused by replacing the high-pressure gas cylinder and the starting component.

[0040] 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 illustrative of the 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas-generating component suitable for non-pressurized fire extinguishing devices, characterized in that, Includes a plug (2), a high-pressure gas cylinder (1) is screwed and fixed on the left side of the plug (2), a screw sleeve (3) is screwed and fixed on the right side of the plug (2), a spring (5) is provided inside the screw sleeve (3), a pin (4) passes through the spring (5) and is placed inside the spring (5), and a starting component (6) is also connected to the right side of the screw sleeve (3).

2. A gas-generating component suitable for non-pressurized fire extinguishing devices according to claim 1, characterized in that, It also includes a starting component (6) consisting of a screw plug (11), a thermal initiation wire (7) and an electric ignition wire (9) which are inserted into a silicone sleeve (8) and fixed to the end of the screw plug (11), and the other end of the electric ignition wire (9) is connected to a wire harness connector (13).

3. A gas-generating component suitable for non-pressurized fire extinguishing devices according to claim 2, characterized in that, The end of the electric ignition wire (9) is flush with the end of the screw plug (11), and the end of the thermal ignition wire (7) extends beyond the end of the screw plug (11).

4. A gas-generating component suitable for non-pressurized fire extinguishing devices according to claim 2, characterized in that, It also includes a heat-initiating wire (7) and an electric ignition wire (9) which are encapsulated and fixed inside the screw plug (11) with epoxy resin (10) and covered outside the screw plug (11) with a yellow wax tube (12).

5. A gas-generating component suitable for non-pressurized fire extinguishing devices according to claim 1, characterized in that, The high-pressure gas cylinder (1) is a cylindrical metal cylinder filled with nitrogen or carbon dioxide gas at a pressure of 4MPa-5.5MPa. The head of the high-pressure gas cylinder (1) is provided with a threaded structure, and the mouth of the high-pressure gas cylinder (1) is sealed with a stainless steel diaphragm.

6. A gas generator assembly for use in a non-pressurised fire extinguishing device according to claim 1, wherein, The plug (2) has several through holes at the connection between the high-pressure gas cylinder (1) and the screw sleeve (3).

7. A gas-generating component suitable for non-pressurized fire extinguishing devices according to claim 1, characterized in that, The tip of the ejector pin (4) is provided with a boss limiting the length of which allows the ejector pin (4) to pierce the stainless steel diaphragm at the mouth of the gas cylinder while avoiding excessive insertion. The tail of the ejector pin (4) is designed to be concave and is equipped with a sealing ring on the outside.

8. A gas-generating component suitable for non-pressurized fire extinguishing devices according to claim 1, characterized in that, The spring (5) can support the ejector pin (4) inside the threaded sleeve when it is not in operation.

9. A gas-generating component suitable for non-pressurized fire extinguishing devices according to claim 1, characterized in that, The plug (2) is connected and fixed to the housing of the fire extinguishing device through a threaded structure, and a sealing ring is installed at the bottom of the thread of the plug (2).

Images