Fire extinguishing device

Abstract

This utility model relates to the field of fire extinguishing device technology, and more particularly to a fire extinguishing device. The fire extinguishing device includes: a shell with an internal cavity containing a fire extinguishing agent; a spray assembly disposed on the shell, capable of spraying the fire extinguishing agent from the cavity into the environment where the fire extinguishing device is located; a gas cylinder assembly including a gas cylinder and a connecting seat, the gas cylinder containing a propellant for the fire extinguishing agent sealed within it, and the connecting seat having a channel communicating with the cavity; the gas cylinder being mounted on the connecting seat with its outlet facing the channel; and a triggering mechanism including a slide, a striking pin assembly, and a detection assembly; wherein the slide is disposed on the shell and has a sliding track formed within it, the connecting seat being mounted on the slide and opposite to the sliding track; and the striking pin assembly being slidably disposed on the sliding track, the striking pin assembly including a striking pin with its striking direction facing the outlet of the gas cylinder. The fire extinguishing device of this embodiment can automatically extinguish a fire in the event of a fire, effectively ensuring the fire extinguishing effect and protecting the life and property safety of users.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, and in particular to a fire extinguishing device. Background Technology

[0002] Commonly used fire extinguishing devices include fire extinguishers, fire blankets, and fire balls, which can achieve good fire extinguishing effects in the event of a fire. However, these devices require manual operation by the user and cannot automatically extinguish a fire when no one is present.

[0003] Among related technologies, a fixed temperature-sensing fire extinguishing device has emerged, which can automatically extinguish fires without user intervention. However, these devices typically store the extinguishing agent using a pre-pressurized method. This storage method can lead to natural pressure loss during the product's lifespan due to various factors, resulting in a reduction or failure of the product's fire extinguishing function. Such devices require periodic pressure checks, and replacement is necessary when the pressure drops to or below the specified limit, increasing the hassle of inspection and replacement. Utility Model Content

[0004] To overcome the problems existing in related technologies, this utility model proposes a fire extinguishing device, which includes:

[0005] The shell has an internal cavity containing a fire extinguishing agent.

[0006] A spraying assembly is provided in the housing, and the extinguishing agent in the housing cavity can be sprayed out into the environment where the extinguishing device is located through the spraying assembly;

[0007] A gas cylinder assembly includes a gas cylinder and a connecting seat. The gas cylinder is sealed with a propellant for the extinguishing agent. The connecting seat has a channel communicating with the cavity. The gas cylinder is mounted on the connecting seat with its outlet facing the channel.

[0008] A triggering mechanism includes a slide block, a striking pin assembly, and a detection assembly; wherein the slide block is disposed on the housing and a slide rail is formed within the slide block, and the connecting seat is disposed on the slide block and opposite to the slide rail; the striking pin assembly is slidably disposed on the slide rail, and the striking pin assembly includes a striking pin, the striking pin's striking direction being towards the outlet end of the gas storage cylinder;

[0009] The gas cylinder assembly and the triggering mechanism are configured as follows:

[0010] When the environmental information detected by the detection component does not meet the triggering conditions of the fire extinguishing device, the striking pin assembly is limited to a preset position on the slide and is separated from the outlet end of the gas cylinder by a distance; when the environmental information detected by the detection component meets the triggering conditions of the fire extinguishing device, the striking pin assembly is triggered to move from the preset position toward the outlet end of the gas cylinder to puncture the outlet end. After the gas cylinder is punctured, the propellant inside is sprayed into the shell cavity through the channel, so that the fire extinguishing agent is sprayed out by the spraying assembly toward the environment where the fire extinguishing device is located under the pressure of the shell cavity.

[0011] As an optional embodiment, the connecting seat includes a protruding part and a seat body connected to each other, wherein the outer diameter of the protruding part is smaller than the outer diameter of the seat body;

[0012] The slide includes a first end near the firing pin, and the first end is open, and the connecting seat is fixed to the first end;

[0013] The protruding part extends into the slide rail from the first end, the seat body is located outside the slide block and mates with the outer end face of the first end, and the protruding part and / or the seat body are sealed to the slide block;

[0014] The channel includes a first vent hole, a guide hole, and a seat cavity connected in sequence;

[0015] The slide forms a second vent hole, and the first vent hole and the second vent hole are connected;

[0016] The first vent hole and the guide hole are formed inside the protrusion, and the seat cavity is formed on the side of the seat body away from the protrusion.

[0017] The guide hole and the seat cavity are formed in the extension direction of the slide rail; the first vent hole is intersecting and communicating with the guide hole; the second vent hole is correspondingly communicating with the first vent hole.

[0018] The outlet end of the gas storage cylinder faces the guide hole, and at least a portion of the structure of the firing pin is accommodated within the guide hole;

[0019] Optionally, the slide is threadedly connected to the connecting seat.

[0020] As an optional embodiment, the housing forms a third vent hole, the third vent hole being positioned corresponding to the second vent hole, and a sealing element is sleeved on the slide, with the sealing element positioned between the second vent hole and the third vent hole;

[0021] When the fire extinguishing device is not in operation, the sealing element closes the second vent hole, and the second vent hole is not connected to the third vent hole;

[0022] When the fire extinguishing device is in operation, the sealing element opens the second vent hole under the action of air pressure in the second vent hole, so that the second vent hole is connected to the third vent hole.

[0023] As an optional embodiment, the triggering mechanism further includes a limiting component;

[0024] The slide rail of the slide block includes a first slide rail and a second slide rail;

[0025] The firing pin assembly further includes a sliding component and a second elastic element, wherein the firing pin is fixed to the sliding component;

[0026] The sliding assembly includes a first sliding part and a second sliding part, wherein the first sliding part is slidably disposed in the first slide rail, and the second sliding part is slidably disposed in the second slide rail;

[0027] The first sliding part is provided with a limiting groove, and the limiting component can controllably act on the first sliding part through the limiting groove to limit the first sliding part to the preset position;

[0028] Preferably, the diameter of the first slide is smaller than that of the second slide, and the second slide is connected to the first slide;

[0029] The first sliding part includes a first slider that is slidably disposed within the first slide rail;

[0030] The second sliding part includes a connecting part and a second sliding block, wherein the connecting part is connected between the first slider and the second slider;

[0031] An elastic element is fitted onto the connecting part. One end of the elastic element abuts against the side wall of the second slide rail that communicates with the first slide rail, and the other end abuts against the second sliding block.

[0032] When the first sliding part is limited to the preset position, the elastic element is in a compressed state.

[0033] As an optional embodiment, the triggering mechanism is a temperature-sensing triggering mechanism, the detection component includes a temperature-sensing component, the temperature-sensing component includes a temperature-sensing element, and the temperature-sensing element is made of fusible metal;

[0034] The limiting component includes a limiting member, a sleeve, and a first elastic member;

[0035] One end of the sleeve is connected to the slide block, and the other end extends away from the slide block;

[0036] The limiting member is disposed in the sleeve, and one end of it is engaged with the limiting groove to limit the sliding part, while the other end is directly or indirectly connected to the other end of the sleeve through the temperature sensing component; when the ambient temperature does not reach the set temperature, the first elastic member is compressed in the sleeve; when the ambient temperature reaches the set temperature, the fusible metal melts, the first elastic member is released from restriction, thereby releasing the limiting member from limiting the first slider.

[0037] Preferably, the temperature sensing component includes an abutment member, the abutment member includes a mounting cylinder and a hot-melt alloy column and an abutment column disposed within the mounting cylinder, the temperature sensing component is a hot-melt alloy column disposed within the mounting cylinder, the abutment column is located between the hot-melt alloy column and the limiting component, the sleeve has a mounting hole at one end away from the sliding component, the mounting cylinder is disposed within the mounting hole, and the interior of the mounting cylinder is through-connected along its axial direction;

[0038] When the temperature of the hot-melt alloy column is lower than the set temperature, the hot-melt alloy column and the abutting column together provide abutment to the limiting member, and the fire extinguishing device is in a non-working state; when the temperature of the hot-melt alloy column reaches the set temperature, the hot-melt alloy column melts and flows out of the mounting cylinder, the hot-melt alloy column and the abutting column release their abutment to the limiting member, and the fire extinguishing device enters the working state.

[0039] As an optional embodiment, the sleeve includes a third end and a fourth end along its axial direction. The third end is connected to the side of the slide block. The side of the slide block is provided with a limiting channel at a position corresponding to the sleeve. The limiting channel communicates the slide rail with the inside of the sleeve. The fourth end is provided with a mounting hole. The abutment is provided in the mounting hole. The limiting member includes a limiting member. The slider is provided with a connecting structure.

[0040] When the fire extinguishing device is in a non-working state, one end of the limiting member extends into the slide through the limiting channel and cooperates with the connecting structure to limit the sliding part to the preset position, and the other end of the limiting member abuts against the abutting member.

[0041] When the fire extinguishing device is in working condition, the abutting member releases its abutting action against the limiting member, and the limiting member separates from the connecting structure.

[0042] As an optional embodiment, the interior of the firing pin has a firing pin channel, and the sidewall of the firing pin has a lateral through hole. Both the firing pin channel and the lateral through hole are arranged along the length direction of the firing pin, and the lateral through hole connects the firing pin channel and the guide hole. The end of the firing pin away from the sliding component is open.

[0043] As an optional embodiment, the temperature sensing component further includes a heat collector, which is located at one end of the outside of the mounting cylinder near the hot-melt alloy column and connected to the hot-melt alloy column. The heat collector is used to collect ambient heat and transfer the ambient heat to the hot-melt alloy column.

[0044] As an optional embodiment, the side of the slide is provided with a fixed seat, the limiting channel is formed in the fixed seat, and the third end of the sleeve is connected to the fixed seat;

[0045] The limiting component further includes a stop portion and a first elastic member. The stop portion is disposed on the limiting member, and the first elastic member is sleeved on the limiting member. One end of the first elastic member is connected to the stop portion, and the other end is connected to the fixed base.

[0046] When the fire extinguishing device is not in operation, the first elastic element is in a compressed state.

[0047] As an optional embodiment, the fire extinguishing device further includes a motion sensing mechanism. The slide includes a second end away from the striker, and the second end is open. The motion sensing mechanism is located at the second end and connected to the sliding assembly. The motion sensing mechanism can sense the movement of the first slider and issue an alarm message when it senses the movement of the sliding assembly.

[0048] The technical solution of this utility model can include the following beneficial effects: By storing the propellant in the gas cylinder and sealing it when the fire extinguishing device is not in operation, this utility model eliminates the need for pre-pressurization of the extinguishing agent within the casing, thus avoiding natural depressurization, reducing the hassle of inspection and replacement, extending service life, and ensuring fire extinguishing effectiveness. Furthermore, this utility model also utilizes a triggering mechanism to automatically sense and trigger fires. Upon the occurrence of a fire, the gas cylinder can be punctured in time, and the released propellant automatically extinguishes the fire, effectively ensuring the safety of users' lives and property.

[0049] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0050] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0051] Figure 1 This is a front view of a fire extinguishing device shown according to an exemplary embodiment.

[0052] Figure 2This is a left view of a fire extinguishing device illustrated according to an exemplary embodiment.

[0053] Figure 3 yes Figure 2 A cross-sectional view of the center AA section with the protective sleeve removed.

[0054] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0055] Figure 5 This is a cross-sectional view of a trigger mechanism removing the striker assembly according to an exemplary embodiment.

[0056] Figure 6 yes Figure 5 Enlarged view of section B in the middle.

[0057] Figure 7 This is a cross-sectional view of the trigger mechanism removing the striker assembly according to another exemplary embodiment.

[0058] Figure 8 This is a cross-sectional view of a slide according to an exemplary embodiment.

[0059] Figure 9 This is a cross-sectional view of a sleeve according to an exemplary embodiment.

[0060] Figure 10 This is a cross-sectional view of the trigger mechanism and the connecting seat as a whole, according to an exemplary embodiment.

[0061] Figure 11 yes Figure 10 Enlarged view of point C in the middle.

[0062] Figure 12 This is a structural diagram of a firing pin according to an exemplary embodiment.

[0063] Figure 13 yes Figure 2 A cross-sectional view of the BB section with the nozzle cover removed.

[0064] Figure 14-15 This is a structural diagram of a nozzle shown from different perspectives according to an exemplary embodiment.

[0065] Figure 16 This is a structural diagram of a sealing element according to an exemplary embodiment.

[0066] Figure 17 This is a cross-sectional view of a fire extinguishing device according to another exemplary embodiment.

[0067] The attached figures are labeled as follows:

[0068] 1. Housing; 11. Housing cavity; 2. Injection assembly; 21. Nozzle seat; 211. Agent channel; 22. Nozzle; 221. Injection hole; 2211. First injection hole; 2212. Second injection hole; 222. Injection section; 2221. First injection section; 2222. Second injection section; 223. Nozzle connection section; 224. Injection chamber; 225. Nozzle channel; 226. First limiting boss; 227. Nozzle sealing groove; 228. 24. Nozzle sealing ring; 24. Sealing component; 241. Sealing membrane; 2411. Sealing membrane body; 2412. Auxiliary groove; 242. Limiting ring; 3. Gas storage cylinder; 31. Outlet end; 41. Connecting seat; 411. Protrusion; 4111. First vent hole; 4112. Guide hole; 412. Seat body; 4121. Seat cavity; 413. Second sealing component; 414. Third sealing component; 5. Strike pin assembly; 51. Strike pin seat; 52. Strike pin; 52. 1. Firing pin channel; 522. Lateral through hole; 61. Slide; 611. Slide rail; 6111. First slide rail section; 6112. Second slide rail section; 612. First end; 613. Second end; 614. Second vent; 615. Fixed base; 6151. Limiting channel; 616. Limiting step; 6211. First sliding part; 6212. Connecting part; 6213. Second sliding part; 622. Second elastic element; 63. Limiting assembly; 631, Sleeve; 6311, Third end; 6312, Fourth end; 6313, Mounting hole; 632, Limiting element; 633, Stop part; 634, First elastic element; 64, Temperature sensing component; 641, Abutting element; 6411, Mounting cylinder; 6412, Hot melt alloy column; 6413, Abutting column; 642, Heat collecting element; 6421, First heat collecting plate; 6422, Second heat collecting plate; 65, First sealing element; 7, Motion sensing mechanism. Detailed Implementation

[0069] 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. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0070] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. The singular forms “a,” “said,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0071] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0072] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0073] The following describes this embodiment in detail with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and examples can be combined with each other.

[0074] Considering that current fixed temperature-sensing fire extinguishing devices typically store the extinguishing agent in the casing using a pre-pressurized method, this pressurization method may experience natural depressurization due to factors such as the product's lifespan, which can lead to a reduction or even failure of the fire extinguishing function. This necessitates regular maintenance or even replacement of the fire extinguishing device, increasing the hassle of inspection and replacement.

[0075] To address the aforementioned technical issues, this embodiment proposes a fire extinguishing device. This device can be used in residential settings, such as kitchens, living rooms, and bedrooms, as well as in commercial settings, such as shopping malls, offices, or elevators. When applied in a residential setting, the fire extinguishing device can be installed on the ceiling of the kitchen, living room, or bedroom to spray extinguishing agent over a wider area in the event of a fire, thereby achieving a better fire extinguishing effect.

[0076] like Figures 1-17 As shown,

[0077] The fire extinguishing device of this embodiment generally includes a housing 1, a spraying assembly 2, and a triggering mechanism; wherein: a cavity 11 is formed inside the housing 1, and the cavity 11 stores a fire extinguishing agent; the spraying assembly 2 is disposed on the housing 1, and the fire extinguishing agent in the cavity 11 can be sprayed out through the spraying assembly 2; a gas cylinder assembly includes a gas cylinder 3 and a connecting seat 41, the gas cylinder 3 is sealed with a propellant for the fire extinguishing agent, and the connecting seat has a channel that can be controllably communicated with the cavity; the gas cylinder is disposed on the connecting seat, and its outlet end faces the channel; the triggering mechanism includes a slide 61, a striking pin assembly 5, and a detection assembly; wherein, the slide is disposed on the housing 1 and a slide rail is formed inside the slide; the striking pin assembly 5 is slidably disposed on the slide rail, and the striking pin assembly 5 includes a striking pin 52 connected to a sliding part 621, the striking pin direction being opposite to the outlet end of the gas cylinder; the gas cylinder assembly and the triggering mechanism are configured as follows:

[0078] When the environmental information detected by the detection component does not meet the triggering conditions of the fire extinguishing device, the striking pin assembly is limited to a preset position on the slide and is separated from the outlet end of the gas cylinder by a distance; when the environmental information detected by the detection component meets the triggering conditions of the fire extinguishing device, the striking pin assembly is triggered to move from the preset position toward the outlet end of the gas cylinder to puncture the outlet end; after the gas cylinder is punctured, the propellant inside is sprayed into the shell cavity through the channel, and the fire extinguishing agent is sprayed out by the spraying assembly toward the environment where the fire extinguishing device is located under the pressure of the shell cavity.

[0079] Preferably, the triggering mechanism is a temperature-sensing triggering mechanism, located outside the housing 1, and the detection component is a temperature-sensing component 64. The slide 61 includes a first end 612 near the striker 52, and the first end 612 is open. The connecting seat 41 is fixed to the first end 612. The channel includes a first vent hole 4111, a guide hole 4112, and a seat cavity 4121 connected in sequence. The gas storage bottle 3 is embedded in the seat cavity 4121, and its outlet end 31 faces the guide hole 4112. At least a part of the structure of the striker 52 is accommodated in the guide hole 4112. The slide 61 forms a second vent hole 614, and the second vent hole 614 and the first vent hole 4111 are correspondingly connected.

[0080] As an optional example, the connecting seat 41 includes a seat body 412 and a protrusion 411, the outer diameter of the protrusion being smaller than the outer diameter of the seat body; preferably, a first vent hole 4111 and a guide hole 4112 are formed in the protrusion 411, a seat cavity 4121 is formed in the seat body 412, the protrusion 411 extends from the first end 612 of the slide into the slide rail 611, the seat body 412 is located outside the slide 61 and abuts against the outer end face of the first end 612, and the protrusion 411 and / or the seat body 412 are sealed to the slide 61; as an optional embodiment, the seat cavity 4121 is formed by the end of the seat body 412 away from the protrusion 411 being recessed inward; optionally, the threaded connection between the slide and the connecting seat 41 not only achieves connection but also has a buffering effect.

[0081] Furthermore, the housing 1 forms a third vent hole, which corresponds to the position of the second vent hole. A first sealing element 65 is sleeved on the slide 61, and the first sealing element 65 is located between the second vent hole 614 and the third vent hole.

[0082] When the fire extinguishing device is not in operation, the seal closes the second vent 614, and the second vent 614 is not connected to the third vent. When the fire extinguishing device is in operation, the seal opens the second vent 614 under the action of air pressure inside the second vent 614, and the air enters the shell cavity through the third vent.

[0083] Preferably, the slide 611 of the slide block includes a first slide 6111 and a second slide 6112; the striker assembly also includes a sliding assembly and a second elastic member 622, and the striker 52 is fixed to the sliding assembly; the sliding assembly includes a sliding part, which includes a first sliding part 6211 and a second sliding part 6213, the first sliding part being slidably disposed in the first slide, and the second sliding part being slidably disposed in the second slide; preferably, the diameter of the first slide 6111 is smaller than that of the second slide 6112, and the second slide is connected to the first slide; the first sliding part 6211 includes a first slider slidably disposed in the first slide; the second sliding part 6213 includes a connecting part 6212 and a second sliding part 6213, the connecting part being connected between the first slider and the second slider; the connecting part is fitted with a second elastic member 622, one end of the second elastic member abutting against the side wall of the second slide communicating with the first slide, and the other end abutting against the second sliding block, and when the first sliding part is limited to a preset position, the second elastic member is in a compressed state. Preferably, the triggering mechanism further includes a limiting component 63, the first sliding part is provided with a limiting groove, and the limiting component 63 can controllably act on the first sliding part through the limiting groove to limit the sliding part to a preset position; preferably, the triggering mechanism is a triggering mechanism, and the detection component includes a temperature sensing component 64, the temperature sensing component 64 includes a temperature sensing element, and the temperature sensing element is made of fusible metal;

[0084] The limiting component 63 includes a limiting member 632, a sleeve 631, and a first elastic member 634. One end of the sleeve 631 is connected to the slide block, and the other end extends away from the slide block. The limiting member 632 is disposed in the sleeve 631, and one end of it cooperates with the limiting groove to limit the sliding part. The other end is directly or indirectly connected to the other end of the sleeve through the temperature sensing component 64. When the ambient temperature has not reached the set temperature, the first elastic member is compressed in the sleeve. When the ambient temperature reaches the set temperature, the fusible metal melts, the first elastic member is released from its restriction, and the limiting member is released. In addition to limiting the first slider, preferably, the temperature sensing component 64 includes an abutment 641, which includes a mounting cylinder 6411 and a hot-melt alloy column 6412 and an abutment column 6413 disposed within the mounting cylinder 6411. The temperature sensing component is the hot-melt alloy column 6412 disposed within the mounting cylinder 6411, and the abutment column 6413 is located between the hot-melt alloy column 6412 and the limiting component 632. The sleeve 631 has a mounting hole 6313 at one end away from the sliding component, and the mounting cylinder 6411 is disposed within the mounting hole 6313. The interior of the mounting cylinder 6411 is through-connected along its axial direction.

[0085] Preferably, the temperature sensing component 64 includes an abutment 641, which includes a temperature sensing element. The abutment 641 is disposed at the bottom of the sleeve 631, and the limiting element 632 abuts against the abutment 641, thereby limiting the pin assembly to a preset position. Preferably, the temperature sensing element is a thermoplastic alloy column 6412, which is disposed inside the mounting cylinder 6411. The abutment 641 includes the mounting cylinder 6411 and the thermoplastic alloy column 6412 and the abutment column 6413 disposed inside the mounting cylinder 6411. The abutment column 6413 is located between the thermoplastic alloy column 6412 and the limiting element. The mounting cylinder 6411 is disposed inside the mounting hole 6313, and the interior of the mounting cylinder 6411 is through-connected along its axial direction.

[0086] When the temperature of the hot-melt alloy column 6412 is lower than the set temperature, the hot-melt alloy column 6412 and the abutting column 6413 together provide abutment for the limiting member, and the fire extinguishing device is in a non-working state; when the temperature of the hot-melt alloy column 6412 reaches the set temperature, the hot-melt alloy column 6412 melts and flows out of the mounting cylinder 6411, the hot-melt alloy column 6412 and the abutting column 6413 release their abutment effect on the limiting member, and the fire extinguishing device enters the working state.

[0087] When the fire extinguishing device is not in operation, the limiting member 632 is connected to the sliding part 621 under the abutting action provided by the abutting member 641, and the sliding part 621 and the piercing component connected thereto are limited to a preset position in the slide 611. When the fire extinguishing device is in operation, due to the melting of the hot melt alloy, the abutting member 641 releases the abutting action on the limiting member 632, the limiting member 632 separates from the sliding part 621, the sliding part 621 moves and drives the firing pin 52 to pierce the outlet end 31 of the gas cylinder 3, the propellant in the gas cylinder 3 is discharged from the outlet end 31 and enters the shell cavity 11 through the airflow passage 8, and the fire extinguishing agent in the shell cavity 11 is sprayed out through the spraying component 2 under the action of air pressure.

[0088] This embodiment stores the propellant in the gas cylinder 3 and seals it when the fire extinguishing device is not in operation. This eliminates the need for pre-pressurization of the extinguishing agent within the casing 1, thus avoiding natural depressurization, reducing the hassle of inspection and replacement, extending service life, and ensuring fire extinguishing effectiveness. Furthermore, this embodiment utilizes a triggering mechanism to automatically sense and trigger fires. Upon the occurrence of a fire, the gas cylinder 3 is punctured in time, and the released propellant automatically extinguishes the fire, effectively ensuring the safety of users' lives and property.

[0089] The following is a detailed description of each component of the fire extinguishing device, with reference to the accompanying drawings.

[0090] Casing 1 Example

[0091] like Figure 1 , Figure 2 and Figure 13 As shown, a cavity 11 is formed inside the shell 1, and the cavity 11 stores the fire extinguishing agent. The shell 1 is preferably made of a high-temperature resistant and corrosion-resistant material, such as stainless steel.

[0092] This embodiment does not explicitly limit the shape and structure of the housing 1, and can be flexibly designed according to the environment in which the fire extinguishing device is installed. In a preferred embodiment, the housing 1 includes a first housing part and a second housing part, which are arranged opposite to each other and fastened together to form a housing cavity 11. The shell walls of both the first and second housing parts protrude outward from the housing cavity 11 to form a curved structure, and the entire housing 1 is elongated to increase the volume of the housing cavity 11 and improve the pressure-bearing capacity of the housing 1. The connection method between the first housing part and the second housing part is not limited, and a sealing connection between the two can be achieved by means of snap-fit, plug-in, connector connection, bonding or welding.

[0093] In a further preferred embodiment, a first flange is formed on the outer edge of the first shell portion, and a second flange is formed on the outer edge of the second shell portion. When the first shell portion and the second shell portion are engaged, the first flange and the second flange are fitted together, which increases the contact area between the first shell portion and the second shell portion and ensures the stability of the assembly and the sealing of the connection between the first shell portion and the second shell portion.

[0094] This embodiment does not limit the type of extinguishing agent in the shell cavity 11, such as a powder extinguishing agent, a liquid extinguishing agent, or a gaseous extinguishing agent. In a preferred embodiment, the extinguishing agent includes a salt solution, such as a potassium salt solution and / or a sodium salt solution. Such extinguishing agents are highly safe and will not cause damage to the user or the items sprayed.

[0095] The shell 1 has a shell discharge port on its shell wall, and the shell cavity 11 is connected to the shell discharge port. The spray assembly 2 is located on the shell 1 and installed at the shell discharge port. When the fire extinguishing device is in the working state, the extinguishing agent in the shell cavity 11 can be sprayed out through the spray assembly 2. When the fire extinguishing device is not in the working state, the pressure in the shell cavity 11 is atmospheric pressure, and the extinguishing agent in the shell cavity 11 will not be sprayed out through the spray assembly 2.

[0096] Example 2 of the spray assembly

[0097] like Figure 13 As shown, the spray assembly 2 is located at the shell discharge port. There is no limitation on the way the spray assembly 2 and the shell discharge port are set. They can be sealed together by snap-fit, plug-in, connector, adhesive or welding.

[0098] In one optional embodiment, the spray assembly 2 includes a nozzle seat 21 and a nozzle 22. The nozzle seat 21 is fixed to the housing outlet, for example, by a threaded connection. The nozzle 22 is detachably disposed on the nozzle seat 21 and located outside the housing 1. A drug channel 211 is formed between the housing outlet and the nozzle 22. A sealing member 24 is used to close the passage between the drug channel 211 and the nozzle 22.

[0099] When the fire extinguishing device is not in operation, the sealing member 24 closes the agent channel 211, and the nozzle 22 is not connected to the shell cavity 11; when the fire extinguishing device is in operation, the pressure in the shell cavity 11 is greater than the preset pressure, the sealing member 24 opens the agent channel 211, the nozzle 22 is connected to the shell cavity 11, and the extinguishing agent can be sprayed out from the nozzle 22.

[0100] In one alternative implementation, such as Figures 13-15As shown, the nozzle 22 includes a nozzle connecting portion 223 and a spray portion 222 connected to each other. The spray portion 222 is detachably mounted on the nozzle seat 21 via the nozzle connecting portion 223. A nozzle channel 225 is formed inside the nozzle connecting portion 223. The spray portion 222 has a curved surface structure, which protrudes away from the nozzle connecting portion 223. The curved surface structure encloses and forms a spray cavity 224, which is connected to the nozzle channel 225. A plurality of spray holes 221 are provided on the peripheral wall of the curved surface structure, which connect the spray cavity 224 to the outside. The nozzle channel 225 and the spray cavity 224 are connected in sequence.

[0101] When the fire extinguishing device is in operation, the shell cavity 11 and the injection port 221 are connected through the agent channel 211. The extinguishing agent in the shell cavity 11 is ejected from the injection port 221 through the agent channel 211. The number, diameter, position, arrangement, and density of the multiple injection ports 221 on the curved structure can be designed to allow the extinguishing agent to be sprayed over a large area in the form of water mist. Preferably, the curved structure of the injection section 222 is a hemispherical structure, and the spray range of the nozzle 22 is greater than or equal to 170 degrees.

[0102] In one optional embodiment, the orifice diameter of the spray hole 221 is a, and the pressure inside the housing 1 is b, where a:b ≥ 1:18. Within this ratio range, the spray hole 221 and pressure in this embodiment can achieve a water mist spraying effect, thereby effectively isolating oxygen and improving the fire extinguishing effect, allowing for rapid fire suppression before the fire spreads. For example, the orifice diameter of the spray hole 221 is 0.5mm to 0.6mm, and the pressure inside the housing 1 is greater than or equal to 0.9MPa.

[0103] In one alternative embodiment, a plurality of spray holes 221 are staggered along the depth direction of the spray cavity 224 to further increase the spray area and improve the atomization effect.

[0104] In one optional embodiment, the curved structure includes a first spray section 2221 and a second spray section 2222 sequentially arranged along the depth direction of the spray cavity 224. The first spray section 2221 is located near the nozzle connection section 223 and surrounds the second spray section 2222. The first spray section 2221 is an annular curved surface, and the second spray section 2222 is a convex surface. For example, the first spray section 2221 occupies 1 / 2 to 4 / 5 of the entire spray section 222. The plurality of spray holes 221 includes a plurality of first spray holes 2211 and a plurality of second spray holes 2212. The diameters of the first spray holes 2211 and the second spray holes 2212 can be the same or different. The plurality of first spray holes 2211 are formed on the first spray section 2221 and arranged layer by layer along the depth direction of the spray cavity 224 to achieve large-area uniform coverage of the extinguishing agent at the periphery of the spray range and to control the fire from the periphery. Multiple second injection holes 2212 are formed on the second injection section 2222 and staggered along the circumferential direction of the injection chamber 224 to achieve uniform distribution of the extinguishing agent in the center of the injection range and avoid blind spots. More preferably, the distribution density of the multiple second injection holes 2212 in the second injection section 2222 is greater than the distribution density of the multiple first injection holes 2211 in the first injection section 2221, so as to further expand the injection range of the extinguishing agent at the periphery of the injection range and the uniformity of the injection in the center, thereby improving the extinguishing efficiency.

[0105] In an optional embodiment, the inner wall surface of the nozzle channel 225 is provided with a first limiting boss 226 at one end near the spray section 222. The first limiting boss 226 is used to limit the sealing member 24 to limit the sealing member 24 within the nozzle channel 225.

[0106] In one optional embodiment, a nozzle sealing groove 227 is formed on the outer wall surface of the nozzle connection 223, and a nozzle sealing ring 228 is provided in the nozzle sealing groove 227. The nozzle 22 also includes a nozzle cover (not shown), which covers the outside of the spraying part 222 and seals with the nozzle sealing ring 228. When the fire extinguishing device is not in operation, the nozzle cover can prevent external dust and other contaminants from entering the spraying hole 221 and clogging it, thus affecting the spraying effect. When the fire extinguishing device is in operation, the extinguishing agent is sprayed out through the spraying hole 221 under pressure, and the nozzle cover detaches from the nozzle connection 223 under the impact force of the extinguishing agent.

[0107] The sealing element 24 can have various structural forms. In one example, the sealing element 24 adopts a valve structure, and the opening and closing of the valve structure can be controlled by detecting the pressure value inside the shell cavity 11, thereby realizing the opening and closing of the agent channel 211. In another example, such as... Figure 16As shown, the sealing component 24 includes a sealing membrane 241 and a limiting ring 242. The limiting ring 242 surrounds the sealing membrane 241 and can limit the sealing membrane body 2411 within the drug channel 211. The sealing membrane 241 can rupture when the pressure inside the cavity 11 exceeds a preset pressure. The sealing membrane 241 is, for example, a rubber membrane. The sealing component 24 of this embodiment has a simple structure, requires no complex structural design, reduces production difficulty and cost, and improves assembly efficiency.

[0108] The sealing membrane 241 and the limiting ring 242 can be an integral structure, with the sealing membrane 241 formed inside the limiting ring 242. The sealing membrane 241 and the limiting ring 242 are formed independently, and the hardness of the limiting ring 242 is greater than that of the sealing membrane 241. In the assembled state, the sealing member 24 is positioned between the nozzle seat 21 and the nozzle 22, and the sealing membrane 241 is fixed between the first limiting boss 226 and the nozzle seat 21.

[0109] In one optional embodiment, the sealing membrane 241 includes a sealing membrane body 2411 and an auxiliary groove 2412 formed on the sealing membrane body 2411. The thickness of the sealing membrane body 2411 is greater than the depth of the auxiliary groove 2412. This allows the sealing membrane body 2411 to seal the agent channel 211 when the fire extinguishing device is not in operation, preventing the cavity 11 from communicating with the external environment. Simultaneously, when the fire extinguishing device is in operation and the pressure inside the cavity 11 reaches a preset pressure, the extinguishing agent can overcome the resistance of the sealing membrane body 2411, ensuring that the extinguishing agent can be ejected from the nozzle 22 in time before the fire spreads, further improving the fire extinguishing effect and efficiency. The auxiliary groove 2412 can have various structural forms on the sealing membrane body 2411, such as being linear, circular, square, or other regular or irregular shapes.

[0110] In a preferred embodiment, the auxiliary groove 2412 includes multiple linear grooves that intersect on the sealing membrane body 2411. The intersection of the multiple linear grooves is located at the center of the sealing membrane body 2411. At this time, the center of the sealing membrane body 2411 is the weakest part of the entire sealing membrane body 2411. When the pressure inside the shell cavity 11 reaches the preset pressure, it is easier to break through the sealing membrane body 2411 at the intersection of the multiple linear grooves. In addition, the fact that the intersection of the multiple linear grooves is located at the center of the sealing membrane body 2411 can ensure that the center of the sealing membrane body 2411 is subjected to balanced force, and ensure that the sealing membrane body 2411 is reliably sealed when the fire extinguishing device is not in operation.

[0111] Triggering Mechanism Embodiment

[0112] like Figure 1 , Figure 2 and Figure 10As shown, the triggering mechanism is located in the housing 1. The assembly method between the triggering mechanism and the housing 1 is not limited; they can be connected and fixed using one or more methods such as snap-fit, plug-in, connector connection, bonding, or welding. For example... Figure 5 - Figure 10 As shown, the triggering mechanism includes a slide 61, a striking pin assembly 5, a temperature sensing assembly 64 (specific embodiment of the detection assembly), a sliding assembly, a limiting assembly 63, etc.; the slide 61 is disposed on the housing 1 and a slide rail 611 is formed inside the slide; the striking pin assembly 5 is slidably disposed on the slide rail; the striking pin assembly 5 includes a striking pin, the striking pin being positioned opposite the outlet end of the gas cylinder; when the environmental information detected by the detection assembly does not meet the triggering conditions of the fire extinguishing device, the striking pin assembly is limited to a preset position on the slide rail and is separated from the outlet end of the gas cylinder by a distance; when the environmental information detected by the detection assembly meets the triggering conditions of the fire extinguishing device, the striking pin assembly is triggered to move from the preset position toward the outlet end of the gas cylinder to puncture the outlet end. After the gas cylinder is punctured, the propellant inside is sprayed into the housing cavity through the channel, causing the fire extinguishing agent to be sprayed out by the spray assembly toward the environment where the fire extinguishing device is located under the pressure of the housing cavity.

[0113] Optionally, the slide 61 is disposed on the side wall or bottom wall of the housing 1. Exemplarily, the slide 61 has an elongated structure and is disposed along the length direction of the housing 1. A slide rail 611 is provided within the slide 61, and the slide rail 611 extends along the length direction of the slide 61. The sliding assembly includes a sliding part 621, which is movably disposed within the slide rail 611. The inner wall surface of the slide rail 611 is smoothly disposed to reduce the frictional force of the sliding part 621 during movement.

[0114] Further optionally, the firing pin assembly 5 may also include a sliding assembly, a limiting assembly 63, etc.; such as Figure 7 and Figure 10 As shown, the sliding assembly includes a sliding part 621, with a striking pin disposed at one end of the sliding part. The piercing end of the striking pin 52 faces the outlet end 31 of the gas cylinder 3 and can move towards the outlet end 31 under the action of the sliding part 621, piercing the outlet end 31. In the event of a fire, the sliding part 621 will lose the limiting effect of the limiting member 632 and move towards the gas cylinder 3 under the elastic action of the first elastic member. The movement of the sliding part 621 drives the striking pin 52 to move towards the outlet end 31 of the gas cylinder 3, thereby causing the striking pin 52 to pierce the outlet end 31 of the gas cylinder 3. The propellant in the gas cylinder 3 enters the guide hole 4112 and enters the housing 1 through the airflow passage 8.

[0115] In one possible implementation, such as Figure 10 and Figure 11As shown, the firing pin assembly 5 also includes a firing pin seat 51, which is connected to the sliding part 621. The firing pin 52 is disposed on the firing pin seat 51 and fixedly connected to it. For example, the end of the firing pin 52 furthest from the gas cylinder 3 is inserted into the firing pin seat 51. A firing pin channel 521 is formed inside the firing pin 52, and a lateral through hole 522 is formed on the sidewall of the firing pin 52. Both the firing pin channel 521 and the lateral through hole 522 are arranged along the length of the firing pin 52, and the lateral through hole 522 connects the firing pin channel 521 and the guide hole 4112. The end of the firing pin 52 furthest from the sliding assembly is open. For example, the impact pin 52 is a tubular structure, comprising an impact pin 52 body, an impact pin channel 521 formed inside the impact pin 52 body, and a needle end with an inclined surface at the top of the impact pin 52 body. The needle end is used to puncture the outlet end 31 of the gas storage cylinder 3, and the needle end is open. Lateral through holes 522 are formed on the sidewalls of the impact pin 52 body, and all lateral through holes 522 communicate with the impact pin channel 521 and the guide hole 4112. In a preferred embodiment, the lateral through hole 522 includes a serrated through hole arranged along the length direction of the impact pin 52 body, and the lateral through hole 522 extends along the length direction of the impact pin 52 body to the needle end. The serrated through hole can increase the flow area of ​​the propellant and improve the emission efficiency of the propellant.

[0116] In one possible implementation, the limiting component 63 includes a sleeve 631, a limiting member 632, and a first elastic member. The sleeve 631 has a long cylindrical structure. The limiting member 632 is disposed inside the sleeve 631, with one end engaged with the slide block 61 for limiting, and the other end directly or indirectly connected to the other end of the sleeve through a temperature sensing component. When the ambient temperature has not reached the set temperature, the first elastic member is compressed in the sleeve. When the ambient temperature reaches the set temperature, the first elastic member is released from its restriction, thereby releasing the limiting member from its limiting effect on the first slider.

[0117] In some embodiments, the sleeve 631 includes a third end 6311 and a fourth end 6312 along its axial direction, with the third end 6311 connected to the side of the slide 61. Preferably, the sleeve 631 is connected to the lower side of the slide 61, and when the fire extinguishing device is installed at the top of the indoor space, the slide 61 is positioned in the direction of gravity. The connection method between the slide 61 and the sleeve 631 is not limited; it can also be achieved by snap-fit, plug-in, connector connection, welding, or bonding.

[0118] In one possible implementation, a limiting channel 6151 is provided on the side of the slide 61 at a position corresponding to the sleeve 631. The limiting channel 6151 connects the slide 611 and the interior of the sleeve 631. A mounting hole 6313 is provided at the fourth end 6312, and an abutment 641 is disposed within the mounting hole 6313. The limiting member 632 includes a limiting member, and the sliding part 621 is provided with a connecting structure. When the fire extinguishing device is in a non-operating state, one end of the limiting member extends into the slide 611 through the limiting channel 6151 and cooperates with the connecting structure to limit the sliding part 621 to a preset position. The other end of the limiting member abuts against the abutment 641. When the fire extinguishing device is in an operating state, the abutment 641 releases its abutment action against the limiting member, and the limiting member separates from the connecting structure. The abutment 641 releases its abutment action against the limiting member by, for example, at least a portion of the structure of the abutment 641 being removed from the mounting hole 6313 or the abutment 641 being completely removed from the mounting hole 6313.

[0119] This embodiment does not specifically limit the structure of the connection structure of the sliding part 621. In one example, the connection structure is a blind hole or through hole provided on the sliding part 621, and the blind hole or through hole is arranged opposite to the limiting member. When the fire extinguishing device is in a non-operating state, the end of the limiting member away from the abutment member 641 is inserted into the blind hole or through hole to limit the sliding part 621. When the fire extinguishing device is in an operating state, the abutment member 641 releases its abutment effect on the limiting member, and the limiting member disengages from the blind hole or through hole under the action of gravity, thereby separating from the sliding part 621. The limiting member loses its abutment effect on the sliding part 621, causing the sliding part 621 to move along the slide rail 611.

[0120] In other possible implementations, the connecting structure can also be a protrusion or rib provided on the sliding part 621, with the protrusion or rib corresponding to the limiting member. When the fire extinguishing device is in a non-operating state, the end of the limiting member away from the abutment member 641 cooperates with the protrusion or rib to limit the sliding part 621. When the fire extinguishing device is in an operating state, the abutment member 641 releases its abutment action on the limiting member, and the limiting member separates from the protrusion or rib under the action of gravity. The limiting member loses its abutment action on the sliding part 621, allowing the sliding part 621 to move along the slide rail 611.

[0121] In one possible implementation, the temperature sensing component 64 includes a temperature sensing element, which is a thermoplastic alloy column 6412 disposed within the mounting cylinder 6411. The abutment member 641 includes the mounting cylinder 6411 and the thermoplastic alloy column 6412 and the abutment column 6413 disposed within the mounting cylinder 6411. The abutment column 6413 is located between the thermoplastic alloy column 6412 and the limiting member. The mounting cylinder 6411 is disposed within the mounting hole 6313, and the interior of the mounting cylinder 6411 is oriented axially... When the temperature of the hot-melt alloy column 6412 is lower than the set temperature, the hot-melt alloy column 6412 and the abutment column 6413 together provide abutment action for the limiting member, and the fire extinguishing device is in a non-working state; when the temperature of the hot-melt alloy column 6412 reaches the set temperature, the hot-melt alloy column 6412 melts and flows out of the mounting cylinder 6411, the hot-melt alloy column 6412 and the abutment column 6413 release the abutment action on the limiting member, and the fire extinguishing device enters the working state.

[0122] As an optional embodiment, the temperature sensing component 64 includes an abutment member 641, in which a thermoplastic alloy column is disposed. The abutment member 641 is located in the sleeve 631 and provides abutment to the limiting member 632. The temperature sensing component 64 can sense the ambient temperature. When the ambient temperature sensed by the temperature sensing component 64 is lower than a preset temperature, it indicates that there may be no fire. At this time, the abutment member 641 provides abutment to the limiting member 632. Under the abutment provided by the abutment member 641, the limiting member 632 connects to the sliding part 621 and limits the sliding part 621 to a preset position in the slide rail 611. At this time, the fire extinguishing device is in a non-operating state. When the temperature sensed by the temperature sensing component 64 reaches the preset temperature, it indicates that the fire extinguishing device is in a non-operating state. In case of a fire, the abutting part 641 releases its abutting action on the limiting part 632, the limiting part 632 separates from the sliding part 621, the sliding part 621 moves along the slide rail 611, and the firing pin 52 connected to the sliding part 621 will move under the action of the sliding part 621 to puncture the gas cylinder 3. The propellant in the gas cylinder 3 will enter the housing 1, increasing the pressure inside the housing 1. Under the pressure, the extinguishing agent in the housing 1 will be sprayed out by the spray assembly 2 to extinguish the fire. At this time, the fire extinguishing device enters the working state.

[0123] In some implementations, such as Figure 6As shown, the abutment member 641 includes an installation cylinder 6411 and a thermoplastic alloy column 6412 and an abutment column 6413 disposed within the installation cylinder 6411. The installation cylinder 6411 is located within the installation hole 6313, and the abutment column 6413 is positioned between the thermoplastic alloy column 6412 and the limiting member. When the temperature is below the set temperature, the thermoplastic alloy column 6412 possesses a certain strength and hardness, enabling it to work with the abutment column 6413 to provide support for the limiting member, and the fire extinguishing device is in a non-operating state. When the temperature reaches the set temperature, the thermoplastic alloy column 6412 will melt, causing the support to collapse. The abutment member 641 will then be unable to provide support and positioning for the limiting member, and the abutment action of the thermoplastic alloy column 6412 and the abutment column 6413 on the limiting member will be released, and the fire extinguishing device will enter the operating state. The set temperature is the melting point of the thermoplastic alloy.

[0124] Furthermore, the interior of the mounting cylinder 6411 is axially continuous, allowing the melted alloy column 6412 to flow out from the end of the mounting cylinder 6411 away from the limiting member when it melts. This allows the blocking effect on the limiting member to be released promptly when the ambient temperature reaches the set temperature. The dimensions of both the melted alloy column 6412 and the abutment column 6413 are larger than the opening size of the mounting cylinder 6411 near the heat collector 642. This prevents the melted alloy column 6412 and the abutment column 6413 from detaching from the mounting cylinder 6411 when the ambient temperature is lower than the melting point of the melted alloy column 6412. The abutment column 6413 also prevents the limiting member from falling out of the sleeve 631 after the melted alloy column 6412 melts. The sleeve 631, mounting cylinder 6411, and abutment column 6413 are all made of high-temperature and corrosion-resistant materials, such as stainless steel.

[0125] In some embodiments, the temperature sensing component 64 further includes a heat collector 642, which is disposed outside the sleeve 631 and connected to the abutment 641. The heat collector 642 is used to collect ambient heat and transfer the ambient heat to the abutment 641.

[0126] Preferably, the heat collector 642 is located at the end of the mounting cylinder 6411 near the thermoplastic alloy column 6412 and connected to the thermoplastic alloy column 6412. The heat collector 642 collects ambient heat and directly transfers it to the thermoplastic alloy column 6412, enabling the thermoplastic alloy column 6412 to promptly sense changes in ambient temperature and melt when a fire causes the ambient temperature to rise to the melting point of the thermoplastic alloy column 6412. Simultaneously, as the molten liquid from the thermoplastic alloy column 6412 flows out of the mounting cylinder 6411, the heat collector plate will also separate from the sleeve 631.

[0127] In a further preferred embodiment, the heat collector 642 includes a heat collector plate, the end face of which is connected to the hot-melt alloy pillar 6412. The heat collector plate has multiple vent holes to significantly reduce the thermal resistance of the end face, allowing heat from the surface of the heat collector plate to concentrate on the hot-melt alloy pillar 6412, thereby improving the heat transfer efficiency between the end face of the heat collector plate and the hot-melt alloy pillar 6412. The arrangement of the multiple heat dissipation vent holes on the end face of the heat collector plate is not limited; they can be evenly distributed or unevenly distributed.

[0128] In one example, the density of vent holes on the end face of the heat collector plate is greater the further away from the hot-melt alloy pillar 6412, and / or the total area of ​​vent holes on the end face of the heat collector plate is greater the further away from the hot-melt alloy pillar 6412. This is because the further away from the hot-melt alloy pillar 6412, the longer the heat transfer path to the hot-melt alloy pillar 6412, and the greater the thermal resistance. Therefore, the greater the density of vent holes and / or the greater the total area of ​​vent holes, the more conducive it is to the concentration of heat on the surface of the heat collector plate to the hot-melt alloy pillar 6412, further improving the heat transfer efficiency.

[0129] In one example, the heat collector 642 includes multiple heat collector plates arranged along the axial direction of the sleeve 631. The end face of the heat collector plate closest to the sleeve 631 is in contact with the abutment member 641. Adjacent heat collector plates are connected, and the dimensional relationship between the multiple heat collector plates is not limited. (Refer to...) Figure 6 The heat collector 642 includes a first heat collector 6421 and a second heat collector 6422. The first heat collector 6421 is connected to the hot melt alloy column 6412. The second heat collector 6422 is located on the side of the first heat collector 6421 away from the hot melt alloy column 6412, and the second heat collector 6422 is connected to the first heat collector 6421. The first heat collector 6421 and the second heat collector 6422 have the same size.

[0130] Preferably, among the multiple heat-collecting plates, the size of the heat-collecting plates gradually decreases along the direction away from the sleeve 631, in order to improve the heat transfer efficiency in the height direction and enhance the concentration of heat towards the hot-melt alloy column 6412, thereby improving the heat transfer effect. For example, refer to... Figure 7 The heat collector 642 includes a first heat collector 6421 and a second heat collector 6422. The first heat collector 6421 is connected to the hot-melt alloy column 6412. The second heat collector 6422 is located on the side of the first heat collector 6421 away from the hot-melt alloy column 6412, and the second heat collector 6422 is connected to the first heat collector 6421. The size of the second heat collector 6422 is smaller than the size of the first heat collector 6421.

[0131] In some embodiments, a fixing seat 615 is provided on the side of the slide 61. The fixing seat 615 can be set independently of the slide 61 and connected to the slide 61 by means of snap-fit, plug-in, connector connection, bonding, or welding. The fixing seat 615 can also be integrally formed with the slide 61. For example, the fixing seat 615 is formed by a portion of the side wall of the slide 61 extending towards the sleeve 631. A limiting channel 6151 is formed inside the fixing seat 615, and the third end 6311 of the sleeve 631 is connected to the fixing seat 615. The sleeve 631 and the fixing seat 615 can be connected by means of snap-fit, plug-in, connector connection, bonding, or welding. For example, the outer wall of the fixed seat 615 away from the slide 61 is provided with an external thread, and the inner wall of the third end 6311 of the sleeve 631 is provided with an internal thread. When the sleeve 631 and the fixed seat 615 are assembled, the end of the fixed seat 615 away from the slide 61 extends into the sleeve 631 through the third end 6311 of the sleeve 631 and is threadedly connected to the sleeve 631 through the internal thread and the external thread.

[0132] The limiting component 63 further includes a stop portion 633 and a first elastic member 634. The stop portion 633 is disposed on the limiting member; for example, the stop portion 633 is a baffle disposed in the middle of the limiting member. The first elastic member 634 is sleeved on the limiting member, and one end of the first elastic member 634 is connected to the stop portion 633, and the other end is connected to the fixing seat 615. When the fire extinguishing device is in a non-operating state, the first elastic member 634 is in a compressed state under the abutment action of the abutment member 641 against the limiting member.

[0133] When the fire extinguishing device is in operation, the abutment member 641 releases its abutment effect on the limiting member. At this time, the first elastic member 634 is released, and the elastic force of the first elastic member 634 pushes the limiting member away from the sliding part 621, thereby accelerating the separation of the limiting member 632 from the sliding part 621 and improving the reaction speed during fire extinguishing. At the same time, even if the connection structure between the limiting member and the sliding part 621 becomes stuck due to prolonged engagement, it can still respond quickly, effectively ensuring the fire extinguishing effect. In addition, the first elastic member 634 can also prevent the limiting member from being set in the direction of gravity. For example, when the limiting member is set in the direction of movement of the sliding part 621, the effect of quickly separating the limiting member from the sliding part 621 in the event of a fire can still be achieved.

[0134] In some embodiments, the slide 611 includes a first slide section 6111 and a second slide section 6112 disposed along the sliding direction of the sliding portion 621. A limiting channel 6151 communicates with the first slide section 6111 and the second slide section 6112. The cross-sectional dimension of the first slide section 6111 is smaller than that of the second slide section 6112 so that a limiting step 616 is formed between the first slide section 6111 and the second slide section 6112. The sliding portion 621 includes a first sliding portion 6211 and a connecting portion 6212 connected to each other. The first sliding portion 6211 is movably disposed on the first slide section 6111, and the connecting portion 6212 is movably disposed on the second slide section 6112. A connecting structure is disposed on the first sliding portion 6211, and a second sliding portion 6213 is formed at the end of the connecting portion 6212 away from the first slide section 6111. The first sliding part 6211 and the connecting part 6212 can be independent of each other and can be connected by snap-fit, plug-in, connector, welding or bonding. The first sliding part 6211 and the connecting part 6212 can also be an integrally formed structure.

[0135] The sliding assembly also includes a second elastic element 622, which is sleeved on the connecting portion 6212. One end of the second elastic element 622 is connected to the limiting step 616, and the other end is connected to the second sliding portion 6213. When the fire extinguishing device is not in operation, the sliding portion 621 is in a limited state, which is limited by the limiting element 632 to a preset position within the slide rail 611. That is, the first sliding portion 6211 is limited within the first slide rail section 6111. At this time, the second elastic element 622 is in a compressed state, and the connecting portion 6212 abuts against the limiting step 616. In the event of a fire, the limiting element 632 separates from the sliding portion 621. The elastic force of the second elastic element 622 after release drives the first sliding portion 6211 and the connecting portion 6212 to move, thereby causing the striking pin 52 to puncture the outlet end 31 of the gas cylinder 3.

[0136] Preferably, the cross-section of the first slide section 6111 is adapted to the cross-section of the first sliding part 6211, so that the first sliding part 6211 can slide within the first slide section 6111 without deviating from its sliding trajectory. The cross-section of the second slide section 6112 is adapted to the cross-section of the second sliding part 6213, so that the second sliding part 6213 can move within the second slide section 6112 without deviating from its sliding trajectory. This ensures that in the event of a fire, the second sliding part 6213 can drive the firing pin 52 to accurately puncture the outlet end 31 of the gas cylinder 3, ensuring the fire extinguishing effect. Preferably, the cross-sectional area of ​​the connecting part 6212 is larger than the cross-sectional area of ​​the first slide section 6111. When the sliding part 621 is in a limited state where it is limited by the limiting member 632 in a preset position within the slide 611, the connecting part 6212 abuts against the limiting step 616, thereby preventing the sliding part 621 from detaching from the opening at the end of the slide block 61 away from the impactor 52 after the impactor 52 punctures the gas cylinder 3 due to the pushing effect of the propellant released by the gas cylinder 3.

[0137] In another possible way, refer to Figure 17 The housing 1 has a receiving cavity 101 formed from top to bottom in the middle. The housing cavity 11 and the receiving cavity 101 are not connected. The slide 61 of the triggering mechanism is connected to the housing 1. The sleeve 631 of the triggering mechanism passes through the receiving cavity 101. The temperature sensing component 64 is located outside the receiving cavity 101.

[0138] Gas cylinder assembly embodiment

[0139] like Figure 3 , Figure 5 , Figure 10 and Figure 11 As shown, the gas cylinder assembly includes a gas cylinder 3 and a connecting seat 41. The gas cylinder 3 is sealed with a propellant for the extinguishing agent. The connecting seat has a channel communicating with the shell cavity. The gas cylinder is mounted on the connecting seat with its outlet end facing the channel.

[0140] Connector:

[0141] The connecting seat 41 is connected to the triggering mechanism. The connecting seat 41 has a seat cavity 4121, in which the gas storage cylinder 3 is located. The seat cavity 4121 communicates with the slide rail 611. An airflow passage 8 is provided between the connecting seat 41, the slide rail 61, and the housing 1, connecting the seat cavity 4121 to the housing cavity 11. When the gas storage cylinder 3 is discharging propellant, the propellant enters the airflow passage 8 through the seat cavity 4121 and then enters the housing 1 through the airflow passage 8 to increase the gas pressure inside the housing 1.

[0142] In some embodiments, the slide 61 includes a first end 612 near the firing pin 52, and the first end 612 is open, with the connecting seat 41 fixed to the first end 612. The connection method between the connecting seat 41 and the slide 61 is not limited, and the two can be connected and fixed by means of snap-fit, plug-in, connector connection, welding or bonding.

[0143] The connecting seat 41 also forms a first vent 4111 and a guide hole 4112, the slide 61 forms a second vent 614, and the shell 1 forms a third vent. The first vent 4111, the second vent 614 and the third vent are connected to form an airflow passage 8. The airflow passage 8 connects the seat cavity 4121 and the shell cavity 11. In the fire extinguishing state, the propellant discharged by the gas cylinder 3 can enter the shell cavity 11 through the airflow passage 8.

[0144] In one example, the connecting seat 41 includes a protrusion 411 and a seat body 412 connected together. The protrusion 411 extends into the slide rail 611 from the first end 612, and the seat body 412 is located outside the slide 61 and mates with the outer end face of the first end 612. Exemplarily, the protrusion 411 and the slide 61 are fixedly connected by a threaded engagement.

[0145] The seat cavity 4121 is formed by an inward recess at the end of the seat body 412 away from the protrusion 411. In a preferred embodiment, the inner wall surface of the seat cavity 4121 is a conical surface, and the curvature of the conical surface is adapted to the side of the gas storage cylinder 3 near the outlet end 31. When the gas storage cylinder 3 is placed in the seat cavity 4121, the inner wall surface of the seat cavity 4121 can fit against the side wall of the gas storage cylinder 3, thereby improving the assembly reliability between the gas storage cylinder 3 and the connecting seat 41.

[0146] The first vent 4111 and the guide hole 4112 are formed within the protrusion 411. The second vent 614 is correspondingly provided with the first vent 4111, and the third vent is correspondingly provided with the second vent 614. The first vent 4111 and the seat cavity 4121 are both connected to the guide hole 4112. The outlet end 31 of the gas storage cylinder 3 faces the guide hole 4112. At least a portion of the structure of the impact pin 52 is housed within the guide hole 4112, meaning that at least the piercing end of the impact pin 52 is located within the guide hole 4112. The guide hole 4112 thus forms a moving channel for the impact pin 52, effectively preventing the movement trajectory of the impact pin 52 from deviating during its movement and ensuring that the impact pin 52 can accurately pierce the outlet end 31 of the gas storage cylinder 3.

[0147] Preferred, such as Figure 8 and Figure 11As shown, a sealing element is fitted onto the slide 61, and the sealing element is located between the second vent 614 and the third vent. When the fire extinguishing device is not in operation, the sealing element closes the second vent 614, and the second vent 614 and the third vent are not connected. This effectively prevents external dust from blocking the passage between the second vent 614 and the third vent, thereby ensuring that the propellant in the gas cylinder 3 can smoothly enter the housing 1 through the first vent 4111, the second vent 614, and the third vent in the event of a fire, ensuring the fire extinguishing effect. When the fire extinguishing device is in operation, the sealing element opens the second vent 614 under the action of air pressure, and the second vent 614 and the third vent are connected. For example, a first sealing groove is provided on the outer wall of the slide 61 at the position corresponding to the second vent 614, and the sealing element is a first sealing element 65. The first sealing element 65 is sleeved on the outer wall of the slide 61 and embedded in the first sealing groove to achieve sealing of the second vent 614 in the non-working state.

[0148] In a preferred embodiment, such as Figure 10 and Figure 11 As shown, the protrusion 411 and / or the seat 412 are sealed to the slide 61. For example, the slide 611 has a second sealing groove at the position corresponding to the protrusion 411, and the slide 61 has a third sealing groove at the position corresponding to the seat 412. When the connecting seat 41 and the slide 61 are assembled, the second sealing member 413 is sleeved on the protrusion 411 and embedded in the second sealing groove, and the third sealing member 414 is sleeved on the seat 412 and embedded in the third sealing groove. The arrangement of the first sealing member 65 and the second sealing member 413 achieves a multi-level sealing effect between the slide 61 and the connecting seat 41.

[0149] Regarding gas cylinder 3:

[0150] like Figures 1-3 As shown, the gas cylinder 3 stores propellant and is embedded in the seat cavity 4121 of the connecting seat. The outlet end 31 of the gas cylinder 3 is sealed and faces the firing pin 52. For example, the outlet end 31 of the gas cylinder 3 is provided with a seal that seals the outlet end 31. In the event of a fire, the firing pin 52 can puncture the seal, thereby allowing the propellant in the gas cylinder 3 to be discharged from the outlet end 31.

[0151] In one example, the main body of the gas cylinder 3 is cylindrical. The gas cylinder 3 and the connecting seat 41 are coaxially arranged. At least a portion of the structure of the gas cylinder 3 is housed inside the seat cavity 4121. The structure of the gas cylinder 3 is adapted to the structure of the seat cavity 4121 to conceal the gas cylinder 3 and reduce the overall volume of the fire extinguishing device. The outlet end 31 of the gas cylinder 3 abuts against the end of the guide hole 4112 away from the sliding part 621. A bottle seal is provided at the outlet end 31. When the fire extinguishing device is not in operation, the bottle seal closes the outlet end 31, and the gas cylinder 3 is not connected to the guide hole 4112, preventing the propellant from entering the guide hole 4112 and losing its fire extinguishing effect. When the fire extinguishing device is in operation, the bottle seal is punctured by the firing pin 52, the opening end is opened, and the gas cylinder 3 is connected to the guide hole 4112. The guide hole 4112 is connected to the shell cavity 11 through the airflow passage 8, thereby allowing the propellant discharged from the gas cylinder 3 to enter the shell 1.

[0152] The propellant can be, for example, an inert gas or a liquefied gas. For instance, liquid carbon dioxide can be used as the propellant, allowing for stable storage within the gas cylinder 3. When the gas cylinder 3 is punctured, the liquid carbon dioxide expands and vaporizes due to the instantaneous pressure change, causing a pressure change within the gas cylinder 3. The gaseous carbon dioxide then enters the casing 1 under pressure. Furthermore, when the extinguishing agent includes a potassium salt solution, the carbon dioxide reacts with water to produce bicarbonate ions, which can decompose grease. In kitchen applications, this is beneficial for removing the large amounts of oil fumes generated during a kitchen fire.

[0153] This embodiment also proposes a fire extinguishing device. Based on the above solution, this fire extinguishing device adds a motion sensing mechanism 7. The motion sensing mechanism 7 is used to sense the movement of the sliding part 621 and issue an alarm message when the sliding part 621 moves. For example, the slide 61 includes a second end 613 away from the striker 52, and the second end 613 is open. The motion sensing mechanism 7 is located at the second end 613 and connected to the sliding assembly. The motion sensing mechanism 7 can sense the movement of the sliding assembly 1 and issue an alarm message when the movement of the sliding assembly is sensed.

[0154] In this embodiment, when the temperature-sensing trigger unit senses that the ambient temperature has reached the set temperature, it will release the abutment action on the limiting member 632. At this time, the sliding part 621 will move along the slide rail 611. After the motion sensing mechanism 7 senses the movement of the sliding part 621, it indicates that a fire is highly likely to occur in the environment where the fire extinguishing device is located. The motion sensing mechanism 7 also issues an alarm message when it senses the movement of the sliding part 621. The alarm message can be issued through an alarm connected to the motion sensing mechanism 7. The alarm can be installed in the user's home to warn the users. Alternatively, the alarm message can be issued through a mobile terminal connected to the motion sensing mechanism 7, so that the user can receive the alarm signal in time even when they are not at home. Alternatively, the alarm message can be issued through a fire protection system connected to the motion sensing mechanism 7, so that the fire department can receive the fire alarm in time. The alarm message includes the location information of the fire extinguishing device, so that firefighters can accurately locate the fire and extinguish it in time.

[0155] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure. Such variations or adaptations follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the foregoing claims.

[0156] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A fire extinguishing device, characterized in that, The fire extinguishing device includes: The shell has an internal cavity containing a fire extinguishing agent. A spraying assembly is provided in the housing, and the extinguishing agent in the housing cavity can be sprayed out into the environment where the extinguishing device is located through the spraying assembly; A gas cylinder assembly includes a gas cylinder and a connecting seat. The gas cylinder is sealed with a propellant for the extinguishing agent. The connecting seat has a channel communicating with the cavity. The gas cylinder is mounted on the connecting seat with its outlet facing the channel. A triggering mechanism includes a slide block, a striking pin assembly, and a detection assembly; wherein the slide block is disposed on the housing and a slide rail is formed within the slide block, and the connecting seat is disposed on the slide block and opposite to the slide rail; the striking pin assembly is slidably disposed on the slide rail, and the striking pin assembly includes a striking pin, the striking pin's striking direction being towards the outlet end of the gas storage cylinder; The gas cylinder assembly and the triggering mechanism are configured as follows: When the environmental information detected by the detection component does not meet the triggering conditions of the fire extinguishing device, the striking pin assembly is limited to a preset position on the slide and is separated from the outlet end of the gas cylinder by a distance; when the environmental information detected by the detection component meets the triggering conditions of the fire extinguishing device, the striking pin assembly is triggered to move from the preset position toward the outlet end of the gas cylinder to puncture the outlet end. After the gas cylinder is punctured, the propellant inside is sprayed into the shell cavity through the channel, so that the fire extinguishing agent is sprayed out by the spraying assembly toward the environment where the fire extinguishing device is located under the pressure of the shell cavity.

2. The fire extinguishing device according to claim 1, characterized in that, The connecting seat includes a protruding part and a seat body connected to each other, wherein the outer diameter of the protruding part is smaller than the outer diameter of the seat body; The slide includes a first end near the firing pin, and the first end is open, and the connecting seat is fixed to the first end; The protruding part extends into the slide rail from the first end, the seat body is located outside the slide block and mates with the outer end face of the first end, and the protruding part and / or the seat body are sealed to the slide block; The channel includes a first vent hole, a guide hole, and a seat cavity connected in sequence; The slide forms a second vent hole, and the first vent hole and the second vent hole are connected; The first vent hole and the guide hole are formed inside the protrusion, and the seat cavity is formed on the side of the seat body away from the protrusion. The guide hole and the seat cavity are formed in the extension direction of the slide rail; the first vent hole is intersecting and communicating with the guide hole; the second vent hole is correspondingly communicating with the first vent hole. The outlet end of the gas storage cylinder faces the guide hole, and at least a portion of the structure of the firing pin is accommodated within the guide hole.

3. The fire extinguishing device according to claim 2, characterized in that, The slide is threadedly connected to the connecting seat.

4. The fire extinguishing device according to claim 2, characterized in that, The housing forms a third vent hole, which corresponds to the position of the second vent hole. A sealing element is sleeved on the slide, and the sealing element is located between the second vent hole and the third vent hole. When the fire extinguishing device is not in operation, the sealing element closes the second vent hole, and the second vent hole is not connected to the third vent hole; When the fire extinguishing device is in operation, the sealing element opens the second vent hole under the action of air pressure in the second vent hole, so that the second vent hole is connected to the third vent hole.

5. The fire extinguishing device according to any one of claims 2-4, characterized in that, The triggering mechanism also includes a limiting component; The slide rail of the slide block includes a first slide rail and a second slide rail; The firing pin assembly further includes a sliding component and a second elastic element, wherein the firing pin is fixed to the sliding component; The sliding assembly includes a first sliding part and a second sliding part, wherein the first sliding part is slidably disposed in the first slide rail, and the second sliding part is slidably disposed in the second slide rail; The first sliding part is provided with a limiting groove, and the limiting component can controllably act on the first sliding part through the limiting groove to limit the first sliding part to the preset position.

6. The fire extinguishing device according to claim 5, characterized in that, The diameter of the first slide is smaller than that of the second slide, and the second slide is connected to the first slide; The first sliding part includes a first slider that is slidably disposed within the first slide rail; The second sliding part includes a connecting part and a second sliding block, wherein the connecting part is connected between the first slider and the second slider; An elastic element is sleeved on the connecting part. One end of the elastic element abuts against the side wall of the second slide rail that communicates with the first slide rail, and the other end abuts against the second sliding block. When the first sliding part is limited to the preset position, the elastic element is in a compressed state.

7. The fire extinguishing device according to claim 6, characterized in that, The triggering mechanism is a temperature-sensing triggering mechanism, and the detection component includes a temperature-sensing component, which includes a temperature-sensing element made of fusible metal; The limiting component includes a limiting member, a sleeve, and a first elastic member; One end of the sleeve is connected to the slide block, and the other end extends away from the slide block; The limiting member is disposed in the sleeve, and one end of it is engaged with the limiting groove to limit the sliding part, while the other end is directly or indirectly connected to the other end of the sleeve through the temperature sensing component. When the ambient temperature does not reach the set temperature, the first elastic member is compressed in the sleeve. When the ambient temperature reaches the set temperature, the fusible metal melts, the first elastic member is released from restriction, and the limiting member releases its limiting effect on the first slider.

8. The fire extinguishing device according to claim 7, characterized in that, The temperature sensing component includes an abutment member, which includes a mounting cylinder and a hot-melt alloy column and an abutment column disposed within the mounting cylinder. The temperature sensing component is a hot-melt alloy column disposed within the mounting cylinder. The abutment column is located between the hot-melt alloy column and the limiting component. The sleeve has a mounting hole at one end away from the sliding component. The mounting cylinder is disposed within the mounting hole, and the interior of the mounting cylinder is through-hole along its axial direction. When the temperature of the hot-melt alloy column is lower than the set temperature, the hot-melt alloy column and the abutting column together provide abutment to the limiting member, and the fire extinguishing device is in a non-working state; when the temperature of the hot-melt alloy column reaches the set temperature, the hot-melt alloy column melts and flows out of the mounting cylinder, the hot-melt alloy column and the abutting column release their abutment to the limiting member, and the fire extinguishing device enters the working state.

9. The fire extinguishing device according to claim 8, characterized in that, The sleeve includes a third end and a fourth end along its axial direction. The third end is connected to the side of the slide block. The side of the slide block is provided with a limiting channel at a position corresponding to the sleeve. The limiting channel connects the slide rail to the inside of the sleeve. The fourth end is provided with a mounting hole. The abutment is provided in the mounting hole. The limiting member includes a limiting member. The slider is provided with a connecting structure. When the fire extinguishing device is in a non-working state, one end of the limiting member extends into the slide through the limiting channel and cooperates with the connecting structure to limit the sliding part to the preset position, and the other end of the limiting member abuts against the abutting member. When the fire extinguishing device is in working condition, the abutting member releases its abutting action against the limiting member, and the limiting member separates from the connecting structure.

10. The fire extinguishing device according to claim 7, characterized in that, The interior of the firing pin has a firing pin channel, and the sidewall of the firing pin has a lateral through hole. Both the firing pin channel and the lateral through hole are arranged along the length direction of the firing pin, and the lateral through hole connects the firing pin channel and the guide hole. The end of the firing pin away from the sliding component is open.

11. The fire extinguishing device according to claim 8, characterized in that, The temperature sensing component also includes a heat collector, which is located at one end of the outside of the mounting cylinder near the hot-melt alloy column and connected to the hot-melt alloy column. The heat collector is used to collect ambient heat and transfer it to the hot-melt alloy column.

12. The fire extinguishing device according to claim 9, characterized in that, The slide block is provided with a fixed seat on its side, the limiting channel is formed in the fixed seat, and the third end of the sleeve is connected to the fixed seat; The limiting component further includes a stop portion and a first elastic member. The stop portion is disposed on the limiting member, and the first elastic member is sleeved on the limiting member. One end of the first elastic member is connected to the stop portion, and the other end is connected to the fixed base. When the fire extinguishing device is not in operation, the first elastic element is in a compressed state.

13. The fire extinguishing device according to claim 8, characterized in that, The fire extinguishing device further includes a motion sensing mechanism. The slide includes a second end away from the striker, and the second end is open. The motion sensing mechanism is located at the second end and connected to the sliding assembly. The motion sensing mechanism can sense the movement of the sliding assembly and issue an alarm message when it senses the movement of the slider.

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