Temperature-sensing self-starting fire extinguishing device

Abstract

A temperature-sensing self-starting fire extinguishing device, comprising a housing (1), a connecting member (41), a firing pin (53), a storage cylinder (31), a slide seat (61), a triggering assembly (62), and an abutting assembly. A housing mounting port (141) is formed on a housing wall of the housing and a housing cavity (13) is formed in the housing; the connecting member is arranged at the housing mounting port and a connecting member channel (414) is formed in the connecting member; a connecting member through hole (4113) is formed in the side wall of the connection member, and the firing pin is arranged in the connecting member channel; the storage cylinder, the connecting member, the triggering assembly, and a temperature-sensing mechanism (64) are sequentially arranged; a slideway (615) is formed in the slide seat and the triggering assembly is arranged in the slideway; when the fire extinguishing device is in a non-operation state, a cylinder sealing member seals a cylinder opening, and an abutting assembly applies an abutting force to the triggering assembly, so as to fix the triggering assembly; when the fire extinguishing device is in an operation state, the abutting assembly loses an abutting effect on the triggering assembly, and the triggering assembly drives the firing pin to pierce the cylinder sealing member, such that the storage cylinder is communicated with the housing cavity, and contents in the storage cylinder enter the housing cavity to generate a fire extinguishing agent; and the fire extinguishing agent is sprayed through a nozzle to implement fire extinguishing.

Description

A temperature-sensing self-starting fire extinguishing device Technical Field

[0001] The present invention belongs to the technical field of fire-fighting equipment, and in particular relates to a temperature-sensing self-starting fire-extinguishing device. Background Art

[0002] According to my country's Fire Protection Products Catalogue (2022 revised edition), national or industry standards have not yet been formulated for fire protection products; among them, there is still a blank in the category of fixed temperature-sensing self-starting water-based fire extinguishing devices in water sprinkler fire extinguishing devices under the category of fixed fire extinguishing systems.

[0003] Existing fixed, temperature-sensing, self-actuating fire extinguishing devices use dry powder or other gaseous extinguishing agents, neither of which can be used in residential firefighting environments. This is because, in the event of a fire, the spraying of the extinguishing agent could cause harm to humans. Furthermore, these devices are all pre-pressurized, and due to various factors over their lifecycle, the storage tank is prone to natural decompression, resulting in reduced functionality or even failure. Consequently, users are required to regularly check the storage tank pressure. If the pressure drops, the tank must be replaced or re-pressurized, adding to the complexity of inspection and maintenance.

[0004] Therefore, how to design a fire extinguishing agent that is harmless to the human body, can meet the requirements of the fire extinguishing device's storage tank without pressure release during its life cycle, has a long service life, is easy to install and has high fire extinguishing efficiency is a technical problem that the industry urgently needs to solve. Summary of the Invention

[0005] In view of this, the present invention provides a temperature-sensing self-starting fire extinguishing device to solve the problems in existing fire extinguishing devices, such as the fire extinguishing function is easily invalidated and has a short service life due to the pressure reduction in the storage tank, the need to regularly detect the pressure in the storage tank leads to a cumbersome maintenance process, and low fire extinguishing efficiency.

[0006] The present invention provides a temperature-sensing self-starting fire extinguishing device, comprising:

[0007] A shell having a shell installation port and a shell discharge port formed on its shell wall, a shell cavity formed inside the shell; the shell cavity and the shell discharge port are communicated;

[0008] A connecting assembly comprising a connecting member, the connecting member being arranged at the shell mounting opening; a connecting member channel being formed inside the connecting member, a connecting member through hole being formed on a side wall of the connecting member, the connecting member through hole communicating with the connecting member channel and the shell cavity;

[0009] a striker assembly comprising a striker disposed within the connector passage;

[0010] A storage bottle assembly includes a storage bottle, the storage bottle being arranged at one end of the connector channel; a bottle seal is provided at the bottle mouth of the storage bottle;

[0011] The temperature-sensing trigger mechanism includes a slide, a trigger assembly, and a temperature-sensing mechanism. The slide is disposed at the other end of the connector channel. A slide is formed inside the slide, the slide communicating with the connector channel. The trigger assembly is slidably disposed within the slide. The temperature-sensing mechanism is disposed at an end of the slide away from the connector channel, and includes an abutment assembly.

[0012] The fire extinguishing device is provided with a non-working state and a working state;

[0013] When the fire extinguishing device is in the non-operating state, the pressure in the housing cavity is normal pressure, the bottle seal seals the bottle opening, and the storage bottle and the housing cavity are not connected; the abutment assembly can apply an abutment force to one end of the trigger assembly to fix the trigger assembly;

[0014] When the fire extinguishing device is in the working state, the abutment assembly loses its abutment effect on the trigger assembly, the trigger assembly can slide and pierce the bottle seal with the striker, and the storage bottle and the shell cavity are connected through the connector channel and the connector through hole; the shell discharge port can discharge the fire extinguishing agent in the shell cavity.

[0015] Further optionally, the shell is an annular structure, the shell mounting opening is formed on the radial inner side of the shell; the shell is formed with an upper accommodating space at the top of the shell mounting opening, and the shell is formed with a lower accommodating space at the bottom of the shell mounting opening; the shell bottom wall is formed with the shell discharge port;

[0016] At least a portion of the storage bottle is disposed in the upper accommodation space, and at least a portion of the slide seat is disposed in the lower accommodation space.

[0017] Further optionally, the shell includes an upper shell and a lower shell, and the upper shell and the lower shell are buckled together to form the shell cavity; the radial outer wall of the upper shell and the radial outer wall of the lower shell are connected together; the radial inner wall of the upper shell is arranged to form an upper shell mounting opening, and the radial inner wall of the lower shell is arranged to form a lower shell mounting opening, and the radial inner wall of the upper shell and the radial inner wall of the lower shell are spaced apart to form a shell gap; the upper shell mounting opening and the shell cavity are connected through the shell gap, and the lower shell mounting opening and the shell cavity are connected through the shell gap.

[0018] Further optionally, the connecting member includes an upper connecting head, a base, and a lower connecting head arranged in sequence, the base being arranged in the shell gap; the upper connecting head passing through the upper shell mounting opening and being located in the upper accommodating space, and the lower connecting head passing through the lower shell mounting opening and being located in the lower accommodating space;

[0019] The connecting assembly also includes an upper nut and a lower nut, the upper nut is arranged on the upper connecting head so that the radial inner wall of the upper shell is arranged between the base and the upper nut; the lower nut is arranged on the lower connecting head so that the radial inner wall of the lower shell is arranged between the base and the lower nut.

[0020] Further optionally, the storage bottle assembly further includes a protective cover, which is arranged on the outside of the storage bottle and is connected to the upper nut.

[0021] Further optionally, the firing pin assembly also includes a firing pin sleeve, which is arranged in the connecting piece channel; a sleeve channel is formed inside the firing pin sleeve, and the slidable firing pin is arranged in the sleeve channel; a sleeve through hole is formed on the side wall of the firing pin sleeve, and the sleeve through hole connects the sleeve channel and the connecting piece channel.

[0022] Further optionally, the firing pin is slidably arranged in the sleeve channel through a firing pin base; a firing pin channel is formed inside the firing pin, and one end of the firing pin channel is open; a firing pin through hole is formed on the side wall of the firing pin, and the firing pin through hole connects the firing pin channel and the sleeve channel.

[0023] Further optionally, the slide includes a first slide end and a second slide end that are arranged opposite to each other, the first slide end is connected to the connecting member, and the second slide end is provided with the temperature sensing mechanism;

[0024] The trigger assembly includes a first trigger member and a second trigger member, wherein the first trigger member is disposed near the first slide end, and the second trigger member is disposed near the second slide end; one end of the first trigger member and the second trigger member are movably connected, and an elastic member is connected between the first trigger member and the second slide end;

[0025] When the fire extinguishing device is in the non-working state, the abutment assembly can apply an abutment force to one end of the second trigger member, so that the second trigger member is fixed to the second slide seat end, and the elastic member stores energy;

[0026] When the fire extinguishing device is in the working state, the elastic member releases energy and drives the first trigger member and the second trigger member to slide toward the first sliding seat end, and the first trigger member can slide with the striker.

[0027] Further optionally, the trigger assembly further includes an intermediate member, the intermediate member including a first connecting end and a second connecting end disposed opposite to each other; the first connecting end is fixedly connected to the first trigger member, and the second connecting end is movably connected to one end of the second trigger member;

[0028] Wherein, the movable connection includes: the second triggering member can rotate relative to the intermediate member around the axis of the slide and / or swing with the axis of the slide as the center line and / or slide along the axis of the slide.

[0029] Further optionally, the second slide end is formed with an abutting boss and a mounting boss that are oppositely arranged, a groove is formed between the abutting boss and the mounting boss, and the groove is connected to the slideway;

[0030] The abutment assembly includes a first abutment member, a fusible alloy member, and a second abutment member; along the direction from the mounting boss to the abutment boss, the first abutment member, the fusible alloy member, and the second abutment member are arranged in sequence;

[0031] When the fusible alloy member is in an unmelted state, the first abutting member may apply an abutting force to the second triggering member via the fusible alloy member and the second abutting member;

[0032] When the fusible alloy component is heated and melted, the abutment effect between the first abutment component and the second abutment component is lost, and the second abutment component cannot apply an abutment force to the second trigger component.

[0033] Further optionally, a rotatable third abutting member is provided on the mounting boss, and one end of the third abutting member abuts against an end of the first abutting member away from the fusible alloy member;

[0034] The second abutment member includes a first abutment wall and a second abutment wall that are arranged opposite to each other, the first abutment wall is formed with an abutment hole, and along the hole depth direction of the abutment hole, the first abutment member and the fusible alloy are sequentially arranged in the abutment hole; the second abutment wall is connected to a heat collecting member; the heat collecting member can collect heat and transfer heat to the second abutment member.

[0035] Further optionally, a nozzle assembly is further included, wherein the nozzle assembly is arranged at the shell discharge port and the nozzle assembly includes a nozzle; a discharge channel is connected between the shell discharge port and the nozzle;

[0036] When the fire extinguishing device is in the non-working state, the pressure in the housing cavity is normal pressure, the discharge channel is closed, and the nozzle and the housing cavity are not connected;

[0037] When the fire extinguishing device is in the working state, the discharge channel is opened, the nozzle is communicated with the shell cavity, and the nozzle can spray the fire extinguishing agent in the shell cavity toward the fire source.

[0038] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0039] (1) The fire extinguishing device includes a shell and a storage bottle, which are two independent containers; the shell stores a first storage material, which includes potassium salt and water; the storage bottle stores a second storage material, which includes liquid carbon dioxide;

[0040] When the fire extinguishing device is not in operation, the pressure in the housing cavity is at normal pressure, and the bottle seal seals the bottle mouth of the storage bottle, thereby avoiding the problem of pressure leakage in the housing cavity and extending the life of the fire extinguishing device. There is no need to regularly test the pressure in the housing cavity, which saves the trouble of replacement and maintenance. Compared with conventional pre-pressurized fire extinguishing devices, the housing of the present application needs to withstand lower pressure. The abutment assembly applies abutment force to the trigger assembly to fix the trigger assembly, and the fire extinguishing device has high reliability.

[0041] When the fire extinguishing device is in operation, the abutment component promptly senses temperature changes and loses its abutment effect on the trigger component. The trigger component, with the firing pin, pierces the bottle seal, allowing the storage bottle and the shell cavity to communicate through the connector channel and the connector through-hole. The abutment component has high temperature sensitivity and a wide temperature sensing range. Liquid carbon dioxide is discharged and expanded into gaseous carbon dioxide, which enters the shell cavity and mixes with potassium salt and water to form a fire extinguishing agent. Under the action of pressure, the fire extinguishing agent is discharged through the nozzle. The fire extinguishing agent is discharged smoothly and in sufficient quantity. The fire extinguishing agent can promptly isolate the burning material from the air and decompose grease and other burning materials to reduce the intensity of the fire, thereby improving the fire extinguishing effect and expanding the fire extinguishing range.

[0042] (2) The fire extinguishing device has a high degree of independence. The fire extinguishing function does not rely on external waterways, circuits, and networks, and can be used immediately after installation. The fire extinguishing agent is harmless to the human body and can be widely used in residential areas and various places with a lack of fire-fighting facilities and fire risks. It is suitable for ordinary fires or fires where the burning material is grease.

[0043] The connector is set at the shell installation port, and the upper nut is used to connect the connector to the upper shell, and the lower nut is used to connect the connector to the lower shell. The connector channel can realize the internal and external communication between the storage bottle and the shell cavity, and the vertical communication between the storage bottle and the trigger assembly. It is small in size and easy to install. It can be highly integrated into various environments without affecting the aesthetic requirements of human living places.

[0044] (3) The connector, striker, and trigger assembly do not come into contact with the contents in the housing cavity; the striker and trigger assembly remain functional and stable in motion; the striker is not easily clogged; and the contents in the housing cavity maintain fire extinguishing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0046] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0047] FIG1a is a schematic diagram of the assembly structure of a housing embodiment provided by the present invention;

[0048] FIG1b is a schematic diagram of the exploded structure of a housing embodiment provided by the present invention;

[0049] FIG1c and FIG1d are schematic cross-sectional views of an embodiment of a housing provided by the present invention;

[0050] FIG2a is a schematic diagram of the assembly structure of a nozzle assembly according to an embodiment of the present invention;

[0051] FIG2 b is a schematic diagram of an exploded structure of a nozzle assembly embodiment provided by the present invention;

[0052] FIG2c is a schematic cross-sectional view of an embodiment of a nozzle holder provided by the present invention;

[0053] Figures 2d and 2e are schematic structural diagrams of nozzle embodiments provided by the present invention;

[0054] FIG2f is a schematic structural diagram of an embodiment of a blocking member provided by the present invention;

[0055] FIG3a is a schematic structural diagram of an embodiment of a protective cover provided by the present invention;

[0056] FIG3 b is a schematic structural diagram of an embodiment of a storage bottle provided by the present invention;

[0057] 4a and 4b are schematic structural diagrams of an embodiment of a connector provided by the present invention;

[0058] FIG4c is a schematic diagram of the assembly structure of the connector assembly and the housing embodiment provided by the present invention.

[0059] 5a and 5b are schematic structural diagrams of an embodiment of a striker sleeve provided by the present invention;

[0060] 5c and 5d are schematic structural diagrams of embodiments of a striker base provided by the present invention;

[0061] FIG5e is a schematic structural diagram of a firing pin embodiment provided by the present invention;

[0062] 5f and 5g are schematic structural diagrams of an embodiment of a striker assembly provided by the present invention;

[0063] FIG5h is a schematic diagram of the assembly structure of the striker assembly and the connecting assembly according to an embodiment of the present invention;

[0064] FIG5i is a schematic diagram of an exploded structure of a striker assembly and a connecting assembly according to an embodiment of the present invention;

[0065] 5j and 5k are schematic diagrams of the assembly structure of the striker assembly and the storage bottle embodiment provided by the present invention;

[0066] FIG6 a is a schematic diagram of the assembly structure of a temperature-sensing trigger mechanism according to an embodiment of the present invention;

[0067] FIG6 b is a schematic diagram of an explosion structure of an embodiment of a temperature-sensing trigger mechanism provided by the present invention;

[0068] FIG6 c is a schematic cross-sectional view of an embodiment of the temperature-sensing trigger mechanism provided by the present invention when the mechanism is in a non-operating state;

[0069] FIG6 d is a schematic cross-sectional view of an embodiment of a temperature-sensing trigger mechanism provided by the present invention when in a working state;

[0070] Figures 6e and 6f are schematic structural diagrams of a slide embodiment provided by the present invention;

[0071] 6g and 6h are schematic diagrams of the assembly structure of the trigger assembly embodiment provided by the present invention;

[0072] FIG6i is a schematic structural diagram of a sliding plate embodiment provided by the present invention;

[0073] FIG6j is a schematic structural diagram of a middleware embodiment provided by the present invention;

[0074] FIG6k is a schematic structural diagram of a slider embodiment provided by the present invention;

[0075] FIG61 is a schematic structural diagram of an embodiment of a heat collecting element provided by the present invention;

[0076] FIG6m is a schematic structural diagram of an embodiment of a second abutting member provided by the present invention;

[0077] FIG7 a is a schematic diagram of the assembly structure of an embodiment of a fire extinguishing device (without a housing and a spray group assembly) provided by the present invention;

[0078] FIG7 b is a schematic cross-sectional view of an embodiment of the fire extinguishing device (without the housing and the spray group assembly) provided by the present invention when in a non-working state;

[0079] FIG7 c is a schematic cross-sectional view of an embodiment of the fire extinguishing device (without the housing and the spray group assembly) provided by the present invention in a working state;

[0080] FIG8a is a schematic diagram of the assembly structure of a fire extinguisher embodiment provided by the present invention;

[0081] FIG8 b is a schematic cross-sectional view of an embodiment of a fire extinguisher (without a nozzle assembly) provided by the present invention;

[0082] FIG9 a is a cross-sectional structural diagram of an embodiment of a fire extinguishing device (with a temperature-sensing trigger mechanism and a nozzle assembly) provided by the present invention when in a non-working state;

[0083] FIG9 b is a cross-sectional structural diagram of an embodiment of the fire extinguishing device (with a temperature-sensing trigger mechanism and a nozzle assembly) provided by the present invention when in a working state;

[0084] In the figure: 1-shell; 11-upper shell; 111-first upper shell wall segment; 112-second upper shell wall segment; 113-third upper shell wall segment; 114-fourth upper shell wall segment; 115-upper accommodating space; 12-lower shell; 121-first lower shell wall segment; 122-second lower shell wall segment; 123-third lower shell wall segment; 124-fourth lower shell wall segment; 125-lower accommodating space; 13-shell cavity; 141-shell mounting port; 142-shell discharge port; 143-shell gap; 2-nozzle assembly; 21-nozzle seat; 211-nozzle seat body; 2111-nozzle seat channel; 212-nozzle seat end plate; 22-nozzle nut; 23- Nozzle; 231 - Spraying hole; 2311 - First spraying hole; 2312 - Second spraying hole; 232 - Connecting portion; 2321 - Nozzle channel; 2322 - Limiting boss; 2323 - Nozzle sealing groove; 233 - Spraying portion; 2331 - First spraying portion; 2332 - Second spraying portion; 2333 - Spraying chamber; 24 - Blocking member; 241 - Nozzle sealing membrane; 2411 - Sealing membrane body; 2412 - Auxiliary groove; 242 - Limiting ring; 3 - Storage bottle assembly; 31 - Storage bottle; 311 - Main body wall; 312 - Bottle mouth wall; 32 - Protective cover; 321 - Cover body; 322 - Cover base; 33 - Bottle sealing member; 4-connecting assembly; 41-connecting member; 411-base; 4111-upper annular groove; 4112-lower annular groove; 4113-connecting member through hole; 412-upper connector; 413-lower connector; 414-connecting member channel; 4141-first connecting member channel section; 4142-second connecting member channel section; 4143-third connecting member channel section; 4144-fourth connecting member channel section; 42-upper nut; 43-lower nut; 441-connecting member upper seal; 442-connecting member lower seal; 443-connecting member middle seal; 5- striker assembly; 51- striker sleeve; 511- sleeve channel; 5111- first sleeve section; 5112- second sleeve section; 5113- third sleeve section; 5114- fourth sleeve section; 5115- first sleeve channel section; 5116- second sleeve channel section; 5117- third sleeve channel section; 5118- first inverted conical surface; 5119- second inverted conical surface; 51110- sealing groove in sleeve; 512- Sleeve through hole; 513 - first sleeve outer sealing groove; 514 - second sleeve outer sealing groove; 52 - striker base; 521 - first base section; 5211 - base mounting hole; 5212 - tapered surface; 522 - second base section; 53 - striker; 531 - striker channel; 532 - striker through hole; 541 - sleeve inner seal; 542 - base seal; 551 - sleeve outer upper seal; 552 - sleeve outer lower seal; 6 - temperature-sensing trigger mechanism; 61 - slide; 611 - mounting boss; 6111 - boss mounting hole; 612 - abutting boss; 6121 - boss limiting structure; 613 - groove; 614 - slide end plate;6141-slide end plate hole; 615-slideway; 62-trigger assembly; 621-slide; 6211-first auxiliary slide section; 6212-main slide section; 6213-second auxiliary slide section; 6214-slide limit structure; 6215-slide clamping portion; 622-middle piece; 6221-middle piece channel; 6222-middle piece end plate; 6223-middle piece through hole; 623-slide; 6231-first slide section; 6232- Second slider segment; 63 - elastic member; 64 - temperature sensing mechanism; 641 - third abutting member; 642 - first abutting member; 643 - fusible alloy member; 644 - second abutting member; 6441 - first abutting wall; 6442 - second abutting wall; 6443 - abutting hole; 645 - heat collector; 6451 - first segment; 6452 - second segment; 6453 - vent hole; 6454 - heat collector connection portion; 646 - gasket; 65 - retaining ring. DETAILED DESCRIPTION

[0085] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0086] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a," "the," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. "A plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0087] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0088] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0089] In existing fire extinguishers, a certain pressure must be maintained in the storage tank, otherwise the fire extinguishing agent cannot be sprayed out, affecting the fire extinguishing effect. Therefore, the pressure in the storage tank needs to be checked regularly. However, the detection is inconvenient and the detection process is cumbersome. If the fire extinguisher is designed to include a storage tank, a gas tank and an induction triggering device, the gas cylinder and the induction triggering device are both placed in the storage tank. When a fire occurs, the high-pressure inert gas in the gas cylinder can enter the storage tank and drive the fire extinguishing agent to be discharged from the nozzle. However, the induction triggering device cannot sense temperature changes in a timely and accurate manner, and the sensing temperature range is narrow.

[0090] As shown in Figures 1a to 9b, this embodiment provides a temperature-sensing self-starting fire extinguishing device, including a shell 1, a connector assembly 4, a striker assembly 5, a storage bottle assembly 3, and a temperature-sensing trigger mechanism 6; the shell wall of the shell 1 is formed with a shell mounting port 141 and a shell discharge port 142, and the interior of the shell 1 is formed with a shell cavity 13; the shell cavity 13 and the shell discharge port 142 are connected; the connector assembly 4 includes a connector 41, which is arranged at the shell mounting port 141, and a connector channel 414 is formed inside the connector 41, and a connector through hole 4113 is formed on the side wall of the connector 41; the striker assembly includes a striker, and the striker 53 is formed with a striker. The storage bottle assembly 3 includes a storage bottle 31, which is disposed at one end of the connection passage 414; a bottle seal 33 is provided at the bottle mouth of the storage bottle 31; the temperature-sensing trigger mechanism 6 includes a slide 61, a trigger assembly 62, and a temperature-sensing mechanism 64; the slide 61 is disposed at the other end of the connection passage 414; a slide 615 communicating with the connection passage 414 is formed inside the slide 61, and the trigger assembly 62 is slidably disposed in the slide 615; the temperature-sensing mechanism 64 is disposed at the end of the slide 61 away from the connection passage 414, and the temperature-sensing mechanism 64 includes an abutment assembly;

[0091] The fire extinguishing device has non-working state and working state;

[0092] When the fire extinguishing device is in a non-operating state, the pressure in the housing cavity 13 is normal pressure, the bottle seal 33 seals the bottle opening, and the storage bottle 31 and the housing cavity 13 are not connected. There is no need to regularly check the pressure in the housing cavity 13, which extends the life of the fire extinguishing device. The abutment assembly applies an abutment force to one end of the trigger assembly 62 to fix the trigger assembly 62.

[0093] When the fire extinguishing device is in working condition, the abutment assembly promptly senses the temperature change and loses its abutment effect on the trigger assembly 62. The trigger assembly 62 can slide and carry the striker 53 to pierce the bottle seal 33, so that the storage bottle 31 and the shell cavity 13 are connected through the connector channel 414 and the connector through-hole 4114; the abutment assembly has high temperature sensitivity and a wide temperature sensing range; the storage content in the storage bottle 31 can enter the shell cavity 13 and generate fire extinguishing agent; under the action of pressure, the fire extinguishing agent is discharged through the shell discharge port 142, thereby improving the fire extinguishing effect and expanding the fire extinguishing range.

[0094] case

[0095] As shown in Figures 1a to 1c, the shell wall of the shell 1 is formed with a shell installation port 141 and a shell discharge port 142, and the interior of the shell 1 is formed with a shell cavity 13; the shell cavity 13 is in communication with the shell installation port 141 and the shell discharge port 142, and a first storage material can be stored in the shell cavity 13. The first storage material includes salt and water, and the salt is potassium salt and / or sodium salt. When the fire extinguishing device is in a non-operating state, the pressure in the shell cavity 13 is normal pressure;

[0096] Furthermore, the housing 1 is an annular structure, and a housing mounting opening 141 is formed on the radial inner side of the housing 1; the housing 1 forms an upper accommodating space 115 at the top of the housing mounting opening 141, and the upper accommodating space 115 is a downwardly concave cavity; the housing 1 forms a lower accommodating space 125 at the bottom of the housing mounting opening 141, and the lower accommodating space 125 is an upwardly convex cavity; the upper accommodating space 115 and the lower accommodating space 125 are both connected to the housing mounting opening 141; the appearance is beautiful and the space occupied is small;

[0097] In view of the problem that the processing process of the shell 1 is cumbersome, the present embodiment proposes that the shell 1 includes an upper shell 11 and a lower shell 12, the upper shell 11 and the lower shell 12 are arranged opposite to each other and buckled together to form a shell cavity 13; the radial outer wall of the upper shell 11 and the radial outer wall of the lower shell 12 are connected together; the radial inner wall of the upper shell 11 and the radial inner wall of the lower shell 12 form a shell installation opening 141, and the radial inner wall of the upper shell 11 and the radial inner wall of the lower shell 12 are spaced apart from each other to form a shell gap 143, the shell gap 143 connects the shell mounting port 141 and the shell cavity 13; specifically, the radial outer wall of the upper shell 11 and the radial outer wall of the lower shell 12 are welded together; the outer edge of the radial outer wall of the upper shell 11 is formed with an upper shell flange, and the outer edge of the radial outer wall of the lower shell 12 is formed with a lower shell flange, and the upper shell flange and the lower shell flange are fitted together, which increases the contact area between the upper shell 11 and the lower shell 12, and ensures the assembly stability and connection sealing between the upper shell 11 and the lower shell 12.

[0098] Furthermore, the main structure of the upper shell 11 is the same as that of the lower shell 12, and the upper shell 11 and the lower shell 12 are symmetrically arranged in the upper and lower directions. The upper shell 11 and the lower shell 12 are both annular structures, and the upper shell 11 is an upwardly convex curved surface structure, and the lower shell 12 is a downwardly convex curved surface structure; the volume of the housing cavity 13 is increased and can withstand a certain pressure;

[0099] Specifically, the radial inner wall of the upper shell 11 includes a first upper shell wall section 111 and a second upper shell wall section 112, the first upper shell wall section 111 is a curved surface structure that is concave downward along the axial direction of the upper shell 11, and the first upper shell wall section 111 is arranged to form an upper accommodating space 115; the second upper shell wall section 112 is connected to the first upper shell wall section 112 and extends radially along the upper shell 11; the first upper shell wall section 111 and the second upper shell wall section 112 are arranged in sequence along the axial direction of the upper shell 11, and the second upper shell wall section 112 is arranged to form an upper shell mounting opening; the radial outer wall of the upper shell 11 and the first upper shell wall section 111 are connected to the circumferential wall of the upper shell 11, and the radial outer wall of the upper shell 11, the circumferential wall of the upper shell 11 and the first upper shell wall section 111 are arranged to form an upward convex curved surface structure; the radial outer wall of the upper shell 11 is the third upper shell wall section 113, and the circumferential wall of the upper shell 11 is the fourth upper shell wall section 114;

[0100] The radial inner side wall of the lower shell 12 includes a first lower shell wall section 121 and a second lower shell wall section 122, the first lower shell wall section 121 is a curved surface structure convex upward along the axial direction of the lower shell 12, and the first lower shell wall section 121 is arranged to form a lower accommodating space 125; the second lower shell wall section 122 is connected to the first lower shell wall section 121 and extends along the radial direction of the lower shell 12; the first lower shell wall section 121 and the second lower shell wall section 122 are arranged in sequence along the axial direction of the lower shell 12, and the second lower shell wall section 122 is arranged to form a lower shell mounting opening; the circumferential wall of the lower shell 12 is connected between the radial outer side wall of the lower shell 12 and the first lower shell wall section 121, and the radial outer side wall of the lower shell 12, the circumferential wall of the lower shell 12 and the first lower shell wall section 121 are arranged to form a downwardly convex curved surface structure; the radial outer side wall of the lower shell 12 is the third lower shell wall section 123, and the circumferential wall of the lower shell 12 is the fourth lower shell wall section 124;

[0101] The fourth upper shell wall section 114 and the fourth lower shell wall section 124 help the fire extinguishing agent to flow smoothly in the shell cavity 13, avoiding the pressure in the shell cavity 13 being reduced due to the resistance of the shell cavity 13 to the fire extinguishing agent, thereby affecting the spraying range and spraying power of the fire extinguishing agent. At the same time, the pressure on the shell 1 is uniform, avoiding the problem of deformation and damage of the shell 1 due to stress concentration.

[0102] The second upper shell wall section 112 and the second lower shell wall section 122 are spaced apart from each other to form a shell gap 143 ; the upper shell installation opening and the shell cavity 13 are connected through the shell gap 143 , and the lower shell installation opening and the shell cavity 13 are connected through the shell gap 143 .

[0103] The bottom wall of the housing 1 is further formed with a shell discharge port 142 ; specifically, the shell discharge port 142 is disposed at the lowest position of the lower housing 12 , and at least one shell discharge port 142 is provided.

[0104] Connecting Components

[0105] As shown in Figures 4a to 4c, the connecting assembly 4 includes a connecting piece 41, an upper nut 42 and a lower nut 43; the connecting piece 41 is arranged at the shell mounting port 141, and the connecting piece 41 connects the radial inner wall of the upper shell 11 and the radial inner wall of the lower shell 12; a connecting piece channel 414 is formed inside the connecting piece 41, and the connecting piece channel 414 includes a first connecting piece channel end and a second connecting piece channel end arranged opposite to each other, and the first connecting piece channel end and the second connecting piece channel end are both open; the first connecting piece channel end is provided with a storage bottle 31; a connecting piece through hole 4113 is formed on the side wall of the connecting piece 41, and the connecting piece through hole 4113 connects the shell cavity 13 and the connecting piece channel 414; there is at least one connecting piece through hole 4113, and when there are multiple connecting piece through holes 4113, the multiple connecting piece through holes 4113 are arranged at intervals along the circumference of the connecting piece channel 414; when the fire extinguishing device is in working condition, the storage bottle 31, the connecting piece channel 414, the connecting piece through hole 4113 and the shell cavity 13 are connected in sequence.

[0106] Furthermore, the connector 41 includes an upper connector 412, a base 411, and a lower connector 413, which are arranged in sequence. The base 411 is arranged in the shell gap 143. The side wall of the base 411 is formed with a connector through hole 4113. The interior of the upper connector 412, the interior of the base 411, and the interior of the lower connector 413 are connected in sequence to form a connector channel 414. The upper connector 412 is inserted into the upper shell installation opening and is located in the upper accommodating space 115. The top of the upper connector 412 is the first connector channel end. The lower connector 413 is inserted into the lower shell installation opening and is located in the lower accommodating space 125.

[0107] An upper nut 42 is provided on the upper connector 412, and the upper nut 42 sets the second upper shell wall section 112 between the base 411 and the upper nut 42; the upper nut 42 forms an upper nut connection structure; a lower nut 43 is provided on the lower connector 413, and the lower nut 43 sets the second lower shell wall section 122 between the base 411 and the lower nut 43;

[0108] Specifically, the base 411, the upper connector 412, and the lower connector 413 are all cylindrical structures and are coaxially arranged. The outer diameter of the base 411 is larger than the outer diameter of the upper connector 412, and the outer diameter of the base 411 is larger than the outer diameter of the lower connector 413.

[0109] An upper annular groove 4111 is formed on the upper end surface of the base 411. An upper connector seal is disposed in the upper annular groove 441 for sealing between the upper shell 11 and the base 411. A lower annular groove 4112 is formed on the lower end surface of the base 411. A lower connector seal 442 is disposed in the lower annular groove 4112 for sealing between the lower shell 12 and the base 411. A middle connector seal 443 is disposed at one end of the connector through-hole 4113 adjacent to the housing cavity 13. The middle connector seal 443 is made of an elastic material and is sleeved on the outer side of the connector 41.

[0110] When the fire extinguishing device is in a non-operating state, the seal 443 in the connector closes the connector through hole 4113, and the housing cavity 13 and the connector passage 414 are disconnected. This achieves reverse sealing, preventing the stored items in the housing cavity 13 from reversely entering the connector passage 414 and coming into contact with air, which would cause the fire extinguishing function of the stored items in the housing cavity 13 to fail.

[0111] When the fire extinguishing device is in operation, the contents in the connector passage 414 flow through the connector through-hole 4113, causing the seal 443 in the connector to be opened and separated from the connector through-hole 4113. The connector through-hole 4113 is opened, and the housing cavity 13 and the connector passage 414 are connected through the connector through-hole 4113. The contents in the connector passage 414 enter the housing cavity 13 through the connector through-hole 4113 and are discharged through the housing discharge port 142.

[0112] Along the axial direction of the connector 41, the connector channel 414 includes a first connector channel section 4141, a second connector channel section 4142, a third connector channel section 4143 and a fourth connector channel section 4144, which are arranged in sequence from top to bottom. The inner diameter of the first connector channel section 4141 is larger than the inner diameter of the second connector channel section 4142, the inner diameter of the second connector channel section 4142 is larger than the inner diameter of the third connector channel section 4143, and the inner diameter of the third connector channel section 4143 is larger than the inner diameter of the fourth connector channel section 4144; the connector through hole 4113 corresponds to the second connector channel section 4142.

[0113] Specifically, the upper connector seal 441 , the lower connector seal 442 , and the middle connector seal 443 are all annular structures.

[0114] Storage bottle assembly

[0115] As shown in Figures 3a and 3b, the storage bottle assembly 3 includes a storage bottle 31 and a protective cover 32. The bottle mouth of the storage bottle 31 is arranged at the shell mounting opening 141 and is arranged at one end of the connector channel 414. A bottle seal 33 is provided at the bottle mouth, and the storage bottle 31 can store a second storage object. The portion of the storage bottle 31 near the bottle mouth is arranged in the upper accommodating space 115, and the structure of the storage bottle 31 is adapted to the structure of the upper accommodating space 115. The upper accommodating space 115 has a concealing effect on the storage bottle assembly 3, thereby reducing the overall volume of the fire extinguishing device.

[0116] When the fire extinguishing device is in the non-operating state, the bottle seal 33 closes the bottle mouth, and the storage bottle 31 is not connected to the housing cavity 13; a positive closure is achieved to prevent the second stored object from entering the connector channel 414, which would cause the second stored object's fire extinguishing function to fail; the path is sealed and the seal is tight;

[0117] When the fire extinguishing device is in operation, the bottle seal 33 is punctured, the bottle opening is opened, and the storage bottle 31 and the housing cavity 13 are connected to each other through the connector channel 414 and the connector through-hole 4113. The storage bottle 31 releases the second stored object into the connector channel 414.

[0118] When the first stored material includes potassium salt and water and the second stored material includes liquid carbon dioxide, the liquid carbon dioxide is discharged and expanded into gaseous carbon dioxide. The gaseous carbon dioxide enters the shell cavity 13 through the connector channel 414 and the connector through-hole 4113, and mixes with the potassium salt and water to generate a fire extinguishing agent containing bicarbonate. The fire extinguishing agent can be discharged from the shell cavity 13; the fire extinguishing agent can isolate the burning material from the air, and at the same time decompose the grease-based burning material, thereby reducing the intensity of the fire.

[0119] Alternatively, when the first stored material is a fire extinguishing agent and the second stored material is a propellant, for example, the propellant is an inert gas, the inert gas enters the housing cavity 13 through the connector channel 414 and the connector through hole 4113, and the fire extinguishing agent can be discharged from the housing cavity 13 under the drive of the inert gas;

[0120] Furthermore, the main body of the storage bottle 31 is cylindrical, and the storage bottle 31 and the housing 1 are coaxially arranged.

[0121] Specifically, the storage bottle 31 includes a main body wall 311 and a bottle mouth wall 312. The main body wall 311 is arranged to form the main body of the storage bottle 31. The bottle mouth wall 312 is connected to one axial end of the main body wall 311, and a bottle mouth is formed at one end of the bottle mouth wall 312 away from the main body wall 311.

[0122] The protective cover 32 is arranged on the outside of the storage bottle 31 and is connected to the upper nut 42;

[0123] Furthermore, the protective cover 32 includes a cover seat body 322 and a cover main body 321. The cover seat body 322 is formed with a protective cover connection structure, and the protective cover connection structure and the upper nut connection structure are fixedly connected; the cover main body 321 is arranged on the cover seat body 322 or is integrally formed with the cover seat body 322, and the cover main body 321 is enclosed to form a protective cavity, and a storage bottle 31 is arranged in the protective cavity; specifically, the upper nut connection structure and the protective cover connection structure are both threaded holes.

[0124] Nozzle assembly

[0125] As shown in Figures 2a to 2c, the nozzle assembly 2 is arranged at the shell discharge port 142. The nozzle assembly 2 includes a nozzle holder 21, a nozzle nut 22 and a nozzle 23. The nozzle holder 21 is arranged in the shell discharge port 142, and one end of the nozzle holder 21 is located in the shell cavity 13 and abuts against the side wall of the shell discharge port 142; the nozzle nut 22 and the nozzle holder 21 are connected by threads, and the nozzle nut 22 is located outside the shell cavity 13, so that the nozzle holder 21 is fixed to the lower shell 12; the nozzle 23 is arranged at the other axial end of the nozzle holder 21; a discharge channel is connected between the shell discharge port 142 and the nozzle 23, and a sealing member 24 is provided in the discharge channel;

[0126] When the fire extinguishing device is in a non-working state, the blocking member 24 closes the discharge channel, and the nozzle 23 and the shell cavity 13 are not connected; when the fire extinguishing device is in a working state, the pressure in the shell cavity 13 is greater than the preset pressure, the blocking member 24 opens the discharge channel, the nozzle 23 and the shell cavity 13 are connected, and the nozzle 23 can spray the fire extinguishing agent in the shell cavity 13 toward the fire source.

[0127] Furthermore, as shown in Figures 2d and 2f, the nozzle holder 21 includes a nozzle holder body 211, which is disposed in the housing discharge port 142 and is surrounded by a nozzle holder channel 2111. The nozzle holder body 211 includes a first end and a second end along its axial direction, the first end being located within the housing cavity 13, and the second end being located outside the housing cavity 13. The nozzle 23 is disposed at the second end, and the blocking member 24 is disposed at the first end, or the blocking member 24 is disposed at the second end and located between the nozzle holder body 211 and the nozzle 23.

[0128] In order to improve the reliability and sealing of the assembly between the nozzle holder body 211 and the shell 1, a nozzle holder end plate 212 is formed at the first end of the nozzle holder body 211, and the nozzle holder end plate 212 extends from the first end along the radial direction of the nozzle holder body 211 to fit the side wall of the shell discharge port 142, so that the nozzle holder end plate 212 and the side wall of the shell discharge port 142 are sealed and connected.

[0129] The outer peripheral wall of the nozzle holder body 211 is provided with a thread that cooperates with the nozzle nut 22. The nozzle nut 22 is connected to the nozzle holder body 211, and the nozzle nut 22 cooperates with the nozzle holder end plate 212, thereby fixing the side wall of the shell discharge port 142 between the nozzle holder end plate 212 and the nozzle nut 22.

[0130] The nozzle 23 includes a connecting portion 232 and a spraying portion 233, which are connected to each other. The connecting portion 232 is detachably mounted on the second end of the nozzle holder body 211, and a nozzle channel 2321 is formed inside the connecting portion 232. The spraying portion 233 has a curved surface structure that protrudes away from the connecting portion 232. The curved surface structure encloses a spraying cavity 2333, which is connected to the nozzle channel 2321. A plurality of spray holes 231 are provided on the peripheral wall of the curved surface structure, which connect the spraying cavity 2333 with the outside world. As a result, the nozzle holder channel 2111, the nozzle channel 2321, and the spraying cavity 2333 are sequentially connected to form a discharge channel.

[0131] When the fire extinguishing device is in working state, the shell cavity 13 and the spray hole 231 are connected through the discharge channel, and the fire extinguishing agent in the shell cavity 13 can be sprayed out through the discharge channel and the spray hole 231. The number, aperture, position, arrangement method and arrangement density of the multiple spray holes 231 on the curved surface structure can be designed so that the fire extinguishing agent can be sprayed over a larger range in the form of water mist; preferably, the spraying range of the nozzle 23 is greater than or equal to 170 degrees; the curved surface structure is a hemispherical structure.

[0132] Furthermore, the diameter of spray hole 231 is a, and the pressure is b, where a:b ≥ 1:18. Within this ratio, the spray hole and pressure of this embodiment can achieve a water mist spray effect, effectively isolating oxygen, improving fire extinguishing effectiveness, and rapidly extinguishing fires before they spread. In one example, the diameter of spray hole 231 is 0.5 mm to 0.6 mm, and the pressure is greater than or equal to 0.9 MPa.

[0133] The plurality of spray holes 231 are staggered along the depth direction of the spray cavity 2333 to further increase the spraying area and enhance the atomization effect;

[0134] The curved surface structure includes a first spraying portion 2331 and a second spraying portion 2332, arranged sequentially along the depth direction of the spraying cavity 2333. The first spraying portion 2331 is positioned adjacent to the connecting portion 232 and surrounds the second spraying portion 2332. The first spraying portion 2331 is an annular curved surface, while the second spraying portion 2332 is a convex surface. Exemplarily, the first spraying portion 2331 occupies 1 / 2 to 4 / 5 of the entire spraying portion 233. The plurality of spraying holes 231 include a plurality of first spraying holes 2311 and a plurality of second spraying holes 2312. The apertures of the first spraying holes 2311 and the second spraying holes 2312 can be the same or different. The plurality of first spraying holes 2311 are formed on the first spraying portion 2331 and arranged layer by layer along the depth direction of the spraying cavity 2333, ensuring uniform coverage of the fire extinguishing agent over a wide area around the spraying range, thereby controlling the fire from the outside. Multiple second spray holes 2312 are formed in the second spray section 2332 and staggered along the circumference of the spray chamber 2333 to ensure uniform distribution of the fire extinguishing agent in the center of the spraying range, avoiding blind spots. More preferably, the distribution density of the multiple second spray holes 2312 in the second spray section 2332 is greater than the distribution density of the multiple first spray holes 2311 in the first spray section 2331, thereby further increasing the spray range of the fire extinguishing agent at the periphery of the spraying range and achieving uniform spraying in the center, thereby improving fire extinguishing efficiency.

[0135] The inner wall surface of the nozzle channel 2321 is provided with a limiting boss 2322 at one end close to the spraying portion 233 . The limiting boss 2322 is used to cooperate with the blocking member 24 to limit the blocking member 24 in the nozzle channel 2321 .

[0136] A nozzle sealing groove 2323 is formed on the outer wall surface of the connecting portion 232, and a nozzle sealing ring is provided in the nozzle sealing groove 2323; the nozzle 23 also includes a nozzle cover, which is provided on the outside of the spraying portion 233 and cooperates with the nozzle sealing ring; when the fire extinguishing device is in a non-working state, the nozzle cover can prevent external dust and the like from entering the spraying hole 231 and blocking the spraying hole 231, thereby affecting the spraying effect; when the fire extinguishing device is in a working state, the fire extinguishing agent is sprayed out through the spraying hole 231 under the action of pressure, and the nozzle cover and the connecting portion 232 are separated under the impact force of the fire extinguishing agent.

[0137] There are various structural forms of the sealing member 24. In one example, the sealing member 24 adopts a valve structure, and can control the opening and closing of the valve structure by detecting the size of the pressure value in the shell cavity 13, thereby realizing the on-off of the discharge channel. In another example, as shown in FIG2f , the sealing member 24 includes a nozzle sealing membrane 241 and a limiting ring 242. The nozzle sealing membrane 241 is arranged on the limiting ring 242. The nozzle sealing membrane 241 can be limited to the first end or the second end by the limiting ring 242. The nozzle sealing membrane 241 can be broken when the pressure in the shell cavity 13 is greater than the preset pressure. The nozzle sealing membrane 241 is, for example, a rubber membrane. Specifically, the limiting ring 242 is located between the limiting boss 2322 and the second end; the sealing member 24 of this embodiment has a simple structure and does not require a complex structural design, which reduces the production difficulty and production cost and improves the assembly efficiency.

[0138] The nozzle sealing membrane 241 and the limiting ring 242 can be an integrated structure, with the nozzle sealing membrane 241 formed on the inner side of the limiting ring 242. The nozzle sealing membrane 241 and the limiting ring 242 are independently formed, and the hardness of the limiting ring 242 is greater than that of the nozzle sealing membrane 241. In the assembled state, the blocking member 24 is arranged at the second end and located between the nozzle seat 21 and the nozzle 23, and the nozzle sealing membrane 241 is fixed between the limiting ring 242 and the nozzle seat 21. In a preferred embodiment, a positioning groove is provided on the side of the limiting ring 242 opposite to the sealing membrane 241, and a positioning protrusion that cooperates with the positioning groove is provided on the side of the nozzle sealing membrane 241 opposite to the limiting ring 242. When the nozzle sealing membrane 241 and the limiting ring 242 are assembled, the positioning groove cooperates with the positioning protrusion.

[0139] In one example, as shown in Figure 2f, the nozzle sealing membrane 241 includes a sealing membrane main body 2411 and an auxiliary groove 2412 formed on the sealing membrane main body 2411. The thickness of the sealing membrane main body 2411 is greater than the groove depth of the auxiliary groove 2412, so that the nozzle sealing membrane 241 can seal the discharge channel when the fire extinguishing device is in a non-working state, so that the shell cavity 13 is not connected to the outside world. At the same time, when the fire extinguishing device is in a working state and the pressure in the shell cavity 13 reaches a preset pressure, the fire extinguishing agent can break through the resistance of the nozzle sealing membrane 241, ensuring that the fire extinguishing agent can be sprayed out from the nozzle 23 in time before the fire spreads, further improving the fire extinguishing effect and efficiency.

[0140] The auxiliary groove 2412 can be formed on the sealing membrane body 2411 in various structural forms. For example, the auxiliary groove 2412 can be linear, circular, square, or other regular or irregular shapes.

[0141] In a preferred embodiment, as shown in Figure 2f, the auxiliary groove 2412 includes a plurality of linear grooves, which are cross-formed on the sealing membrane body 2411, and the intersection of the plurality of 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 nozzle sealing membrane 241. When the pressure in the shell cavity 13 reaches the preset pressure, it is easier to break the nozzle sealing membrane 241 at the intersection of the plurality of linear grooves; in addition, the intersection of the plurality of linear grooves is set at the center of the nozzle sealing membrane 241, which can ensure that the center of the nozzle sealing membrane 241 is subjected to balanced force, and ensure that the nozzle sealing membrane 241 is reliably sealed when the fire extinguishing device is in a non-working state.

[0142] Firing pin assembly

[0143] As shown in Figures 5a to 5k, the firing pin assembly 5 is arranged in the connecting piece channel 414, and the firing pin assembly 5 includes a firing pin sleeve 51, a firing pin base 52 and a firing pin 53. The firing pin sleeve 51 is internally formed with a sleeve channel 511, and the side wall of the firing pin sleeve 51 is formed with a sleeve through hole 512; the firing pin base 52 is slidably arranged in the sleeve channel 511, and the firing pin base 52 is formed with a base mounting hole 5211. One end of the firing pin 53 is arranged at the base mounting hole 5211, and the firing pin 53 can slide along the sleeve channel 511 with the firing pin base 52; the firing pin 53 is internally formed with a firing pin channel 531, and one end of the firing pin channel 531 is open and has a spike shape; the side wall of the firing pin 53 is formed with a firing pin through hole 532, and the firing pin channel 531, the firing pin through hole 532, the sleeve channel 511 and the sleeve through hole 512 are connected in sequence;

[0144] When the fire extinguishing device is in a non-operating state, the bottle seal 33 seals the bottle opening and the striker 53 is away from the bottle seal;

[0145] When the fire extinguishing device is in working state, the striker base 52 moves toward the direction close to the bottle seal 33, and the striker 53 pierces the bottle seal 33 to open the bottle mouth; the storage bottle 31, the striker channel 531, the striker through hole 532, the sleeve channel 511, the connector channel 414 and the connector through hole 4113 and the shell cavity 13 are connected in sequence to form a discharge flow path; the second stored object can enter the shell cavity 13 through the discharge flow path.

[0146] In order to solve the problem that the flow area of ​​the striker through hole 532 cannot be adjusted, this embodiment proposes that the striker through hole 532 extends along the length direction of the striker 53; the striker 53 is elastic, and the width of the striker through hole 532 can be adjusted, so that the end of the striker 53 away from the bottle mouth is embedded in the base mounting hole 5211; on the one hand, the striker 53 can smoothly pierce the bottle seal, and on the other hand, the fluid in the striker channel 531 can be discharged through the striker through hole 532; the discharge path is short and the discharge volume is sufficient.

[0147] Preferably, the firing pin through hole 532 is a serrated structure, which increases the flow area of ​​the firing pin through hole 532; the firing pin through hole 532 includes a first through hole wall 5321 and a second through hole wall 5322; the first through hole wall 5321 is formed with a plurality of first serrations, and the plurality of first serrations are arranged in sequence along the axial direction of the firing pin 53, and a first serration groove is formed between two adjacent first serrations; the second through hole wall 5322 is formed with a plurality of second serrations, and the plurality of second serrations are arranged in sequence along the axial direction of the firing pin 53, and a second serration groove is formed between two adjacent second serrations; the first serrations and the second serration grooves are arranged correspondingly, and the second serrations and the second serration grooves are arranged correspondingly.

[0148] Furthermore, the sleeve channel 511 includes a first sleeve channel section 5115, a second sleeve channel section 5116, and a third sleeve channel section 5117, which are sequentially arranged and connected along the axial direction of the striker sleeve 51. The end of the first sleeve channel section 5115 away from the second sleeve channel section 5116 and the end of the third sleeve channel section 5117 away from the second sleeve channel section 5116 are both open. The bottle mouth wall 312 is provided in the first sleeve channel section 5115. The striker 53 can slide toward the bottle mouth along the second sleeve channel section 5116 and the first sleeve channel section 5115.

[0149] The inner diameter of the first sleeve channel section 5115 is larger than that of the second sleeve channel section 5116, and the inner diameter of the second sleeve channel section 5116 is larger than that of the third sleeve channel section 5117. A first inverted conical surface 5118 is formed at the open end of the first sleeve channel section 5115, and a second inverted conical surface 5119 is formed at the end of the first sleeve channel section 5115 adjacent to the second sleeve channel section 5116. The end of the main body wall adjacent to the bottle mouth abuts against the first inverted conical surface 5118, which limits and guides the main body wall 311. The bottle mouth abuts against the second inverted conical surface 5119, which limits the bottle mouth.

[0150] A sleeve inner sealing groove 51110 is formed on the side wall of the first sleeve channel section 5115, and the sleeve inner sealing groove 51110 is located between the first inverted conical surface 5118 and the second inverted conical surface 5119 and is an annular structure; a sleeve inner sealing member 541 is arranged in the sleeve inner sealing groove 51110, and the sleeve inner sealing member 541 is arranged on the outer side of the bottle mouth wall 312. The sleeve inner sealing member 541 can seal the gap between the first sleeve channel section 5111 and the bottle mouth wall 312; a sleeve through hole 512 is formed on the side wall of the second sleeve channel section 5116.

[0151] The striker base 52 includes a first base section 521 and a second base section 522, which are arranged in sequence. The outer diameter of the first base section 521 is larger than the outer diameter of the second base section 522. The first base section 521 is inserted into the second sleeve passage section 5116, and the second base section 522 is slidably disposed in the third sleeve passage section 5117. A base mounting hole 5211 is formed at one end of the first base section 521 away from the second base section 522. A base seal 542 is provided between the striker base 52 and the sleeve passage 511; specifically, the base seal 542 is provided between the second base section 522 and the third sleeve passage section 5117.

[0152] A conical surface 5212 is formed at one end of the first base section 521 away from the second base section 522, and the minor diameter of the conical surface 5212 is smaller than the inner diameter of the bottle mouth; when the fire extinguishing device is in working condition, the conical surface 5212 has a diversion function, while increasing the flow area between the sleeve channel 511 and the striker base 52; the second stored object enters the sleeve channel 511 and smoothly enters the sleeve through hole 512 under the action of the conical surface 5212.

[0153] To address the sealing problem between the striker sleeve 51 and the connector 41, this embodiment proposes that an outer sleeve upper seal 551 and an outer sleeve lower seal 552 are sleeved on the outer side of the striker sleeve 51. The outer sleeve upper seal 551 and the outer sleeve lower seal 552 are both located between the connector channel 414 and the striker sleeve 51. Along the axial direction of the striker sleeve 51, the outer sleeve upper seal 551 and the outer sleeve lower seal 552 are respectively located on both sides of the sleeve through hole 512.

[0154] When the fire extinguishing device is in working state, the second stored object enters the striker channel 531 and enters the sleeve channel 511 through the striker through hole 532. Due to the sealing effect of the sleeve inner seal 541 and the base seal 542, it can only enter the connector channel 414 through the sleeve through hole 512; due to the sealing effect of the sleeve outer upper seal 551 and the sleeve outer lower seal 552, the second stored object can only enter the shell cavity 13 through the connector through hole 4113.

[0155] Along the axial direction of the striker sleeve 51, the outer side wall of the striker sleeve 51 includes, from top to bottom, a first sleeve segment 5111, a second sleeve segment 5112, a third sleeve segment 5113, and a fourth sleeve segment 5114. The outer diameter of the first sleeve segment 5111 is larger than the outer diameter of the second sleeve segment 5112, the outer diameter of the second sleeve segment 5112 is larger than the outer diameter of the third sleeve segment 5113, and the outer diameter of the third sleeve segment 5113 is larger than the outer diameter of the fourth sleeve segment 5114. The sleeve through hole 512 corresponds to the second sleeve segment 5112.

[0156] The first sleeve section 5111 is arranged in the first connecting piece channel section 4141, and the second sleeve section 5112 is arranged in the second connecting piece channel section 4142; the third sleeve section 5113 is arranged in the third connecting piece channel section 4143, and the fourth sleeve section 5114 is arranged in the fourth connecting piece channel section 4144; the first sleeve section 5111 forms a first sleeve outer sealing groove 513, and the first sleeve outer sealing groove 513 is provided with a sleeve outer upper seal 551; the third sleeve section 5113 forms a second sleeve outer sealing groove 514, and the second sleeve outer sealing groove 514 is provided with a sleeve outer lower seal 552.

[0157] Specifically, the sleeve inner seal 541 , the base seal 542 , the sleeve outer upper seal 551 and the sleeve outer lower seal 552 are all annular structures.

[0158] Temperature trigger mechanism

[0159] As shown in Figures 6a to 7c, the temperature-sensing trigger mechanism 6 includes a slide 61, a trigger assembly 62 and a temperature-sensing mechanism 64. The slide 61 is arranged at the second connector channel end 4142, and the slide 61 is connected to the lower connector 413; a slide 615 is formed inside the slide 61, and the slide 615 is connected to the connector channel 414; specifically, the slide 61 includes a first slide end and a second slide end arranged opposite to each other, the first slide end and the second connector channel end 4142 are connected, and a groove 613 is formed at the second slide end, and the groove 613 is connected to the slide 615; at least a portion of the slide 61 is arranged in the lower accommodating space 125 for hiding the slide 61, and at the same time, the heat from the bottom of the shell 1 can be gathered in the lower accommodating space 125 and trigger the temperature-sensing mechanism 64; the storage bottle assembly 3 and the temperature-sensing trigger mechanism 6 are connected up and down through the connector 41;

[0160] Furthermore, one end of the slide 61 is formed with a mounting boss 611, an abutting boss 612 and a slide end plate 614, the mounting boss 611 and the abutting boss 612 are arranged relative to each other, the slide end plate 614 is arranged between the mounting boss 611 and the abutting boss 612, and the mounting boss 611, the slide end plate 614 and the abutting boss 612 are surrounded by a groove 613, the slide end plate 614 is formed with a slide end plate hole 6141, and the slide end plate hole 6141 connects the groove 613 and the slide 615; the mounting boss 611 is formed with a boss mounting hole 6111.

[0161] <trigger component>

[0162] The trigger assembly 62 is slidably disposed in the slideway 615 , and an elastic member 63 is disposed between the trigger assembly 62 and the slideway 615 ;

[0163] When the fire extinguishing device is in a non-operating state, the trigger assembly 62 is fixed to the second sliding seat end, and the elastic member 63 stores energy;

[0164] When the fire extinguishing device is in working state, the elastic member 63 releases energy and drives the trigger assembly 62 to slide along the slideway 615 toward the striker 53 , and the trigger assembly 62 and the striker 53 pierce the bottle seal 33 .

[0165] Furthermore, the trigger assembly 62 includes a first trigger member, a second trigger member, and an intermediate member 622. The first trigger member is disposed near the first slide end, and the second trigger member is disposed near the second slide end. The first trigger member and the second trigger member are slidably disposed within the slideway 615. One end of the first trigger member and the second trigger member are movably connected via the intermediate member 622. An elastic member 63 is connected between the first trigger member and the second slide end.

[0166] When the fire extinguishing device is in a non-operating state, the abutment assembly can apply an abutment force to the second trigger member, so that one end of the second trigger member is fixed in the groove 613, and the elastic member 63 stores energy;

[0167] When the fire extinguishing device is in operation, the abutment assembly does not apply abutment force to the second trigger member, the elastic member 63 releases energy, and drives the first trigger member and the second trigger member to slide toward the first slide seat end. The first trigger member approaches the striker 53 along the slideway 615 and can slide along the sleeve channel 511 with the striker 53.

[0168] Specifically, the first trigger member is a slider 623, and the second trigger member is a slide 621; a slide limiting structure 6214 is formed at one end of the slide 621, and a boss limiting structure 6121 is formed abutting the boss 612, and the slide limiting structure 6214 cooperates with the boss limiting structure 6121.

[0169] To address the problem that the position between the slide 621 and the slider 623 cannot be adjusted, this embodiment proposes that the intermediate member 622 includes a first connecting end and a second connecting end that are arranged opposite to each other; the first connecting end is fixedly connected to the slider 623, and the second connecting end is movably connected to one end of the slide 621;

[0170] The movable connection includes that the slide 621 can rotate relative to the intermediate member 622 around the axis of the slide 615 and / or swing around the axis of the slide 615 as the center line and / or slide along the axis of the slide 615;

[0171] When the sliding piece 621 is fixed on the abutting boss 612 , the middle piece 622 and the slider 623 are fixed under the elastic force of the sliding piece 621 and the elastic piece 63 ;

[0172] When the sliding plate 621 and the contact boss 612 are separated, the slider 623 , the middle member 622 and the sliding plate 621 all move under the elastic force of the elastic member 63 .

[0173] Furthermore, a middle piece channel 6221 is formed inside the middle piece 622. A middle piece connection structure is formed near the first connection end of the middle piece channel 6221. A middle piece end plate 6222 is formed near the second connection end of the middle piece channel 6221. A middle piece through hole 6223 is formed in the middle piece end plate 6222. The middle piece through hole 6223 is connected to the middle piece channel 6221.

[0174] One end of the slider 623 is slidably engaged with the slideway 615, and the other end of the slider 623 is disposed within the intermediate member channel 6221. A slider connection structure is formed on the other end of the slider 623; the slider connection structure is connected to the intermediate member connection structure; the slide 621 is disposed within the intermediate member through hole 6223, and a slide clamping portion 6215 is formed on the end of the slide 621 adjacent to the slider 623. The slide clamping portion 6215 is disposed within the intermediate member channel 6221 and is clamped to the intermediate member end plate 6222.

[0175] Specifically, the slider 623 is formed with a first slider segment 6231 and a second slider segment 6232 connected in sequence from top to bottom. The first slider segment 6231 and the second slider segment 6232 are both cylindrical structures. The outer diameter of the first slider segment 6231 is larger than the outer diameter of the second slider segment 6232. The second slider segment 6232 is disposed in the intermediate member channel 6221 and forms a slider connection structure. The lower end surface of the first slider segment 6231 is connected to the upper end of the elastic member 63. The upper end surface of the first slider segment 6231 is used to abut against the retaining ring 65 when the fire extinguishing device is in the working state. The slider connection structure and the intermediate member connection structure are both threaded.

[0176] The slide 621 includes a first auxiliary slide section 6211, a main slide section 6212 and a second auxiliary slide section 6213 which are arranged and connected in sequence. The first auxiliary slide section 6211 is connected to the middle piece 622 and forms a slide clamping portion 6215; the second auxiliary slide section 6213 is arranged obliquely relative to the main slide section 6212 and the second auxiliary slide section 6213 forms a slide limiting structure 6214; the length of the main slide section 6212 is greater than the length of the first auxiliary slide section 6211, and the length of the main slide section 6212 is greater than the length of the second auxiliary slide section 6213; the first auxiliary slide section 6211 is arranged in the slide 615, the main slide section 6212 passes through the end hole of the slide seat and enters the slide 615, and the second auxiliary slide section 6213 can extend to one end of the slide seat 61 close to the temperature sensing mechanism 64 when the fire extinguishing device is in a non-working state.

[0177] In order to address the problem that the abutment force between the heat collecting member 645 and the second trigger member is small, resulting in unreliable fixation of the second trigger member, this embodiment proposes that a gasket 646 is provided between the heat collecting member 645 and the other end of the second trigger member. The gasket 646 can increase the friction between the heat collecting member 645 and the second trigger member, so that the other end of the second trigger member can be reliably fixed in the groove 613.

[0178] In order to solve the problem that the maximum sliding displacement of the first trigger member cannot be adjusted when it slides along the slide 615 in the direction away from the groove 613, this embodiment proposes that the slide 61 and the connecting member 41 are connected by a retaining ring 65, and the retaining ring 65 is arranged in the slide 615. When the first trigger member slides to the retaining ring 65, the retaining ring 65 serves to limit the first trigger member; the position of the retaining ring 65 can be adjusted according to actual needs; specifically, the retaining ring 65 and the slide 51 and the retaining ring 65 and the connecting member 41 are all connected by threads.

[0179] <Temperature Sensing Mechanism>

[0180] The temperature sensing mechanism 64 is disposed at an end of the slide 61 away from the connector 41 and includes a heat collecting member 645 and a contact assembly. The heat collecting member 645 contacts the contact assembly and can collect heat and transfer the heat to the contact assembly. The contact assembly includes a fusible alloy member 643, which can promptly and accurately sense the ambient temperature and change its state. The fusible alloy member 643 has an unmelted state and a melted state. Specifically, the temperature sensing mechanism 64 is disposed within the groove 613.

[0181] When the ambient temperature is lower than the melting point of the fusible alloy 643 , the fusible alloy 643 is in an unmelted state, and the abutting assembly can apply an abutting force to the trigger assembly 62 , so that the trigger assembly 62 is fixed in the groove 613 ;

[0182] When the ambient temperature is equal to or higher than the melting point of the fusible alloy 643, the fusible alloy 643 is melted by the heat and is in a molten state. The abutment assembly cannot apply an abutment force to the trigger assembly 62, and the trigger assembly 62 can move toward the striker 5 and drive the striker 5 to pierce the bottle seal.

[0183] The ambient temperature is the temperature of the environment in which the fire extinguisher is located; different fusible alloy parts 643 have different melting points, and corresponding fusible alloy parts 643 can be set according to different temperature sensing requirements.

[0184] The abutment assembly includes a first abutment member 642 and a second abutment member 644. One end of the second abutment member 644 contacts or is connected to the heat collecting member 645. The first abutment member 642, the fusible alloy member 643 and the second abutment member 644 are arranged in sequence.

[0185] When the fusible alloy member 643 is in an unmelted state, the first abutting member 642 can apply an abutting force to the second trigger member through the fusible alloy member 643 and the second abutting member 644, so that the other end of the second trigger member is fixed to the second slide end;

[0186] When the fusible alloy member 643 is heated and melted, the abutment between the first abutment member 642 and the second abutment member 644 is lost, the second abutment member 644 cannot apply abutment force to the second trigger member, and the other end of the slide 621 can be separated from the second slide end.

[0187] Furthermore, the second abutting member 644 includes a first abutting wall 6441 and a second abutting wall 6442 that are arranged opposite to each other. The first abutting wall 6441 is formed with an abutting hole 6443. Along the depth direction of the abutting hole 6443, the first abutting member 642 and the fusible alloy member 643 are sequentially arranged in the abutting hole 6443. When the first abutting member 642 is subjected to a force along the depth direction, the first abutting member 642, the fusible alloy member 643, and the second abutting member 644 abut together in sequence. The second abutting wall 6442 is fixedly connected to the heat collecting member 645.

[0188] Specifically, the first abutting member 642 , the fusible alloy member 643 and the abutting hole 6443 are all cylindrical structures, and the first abutting member 642 , the fusible alloy member 643 and the abutting hole 6443 are coaxially arranged.

[0189] In order to solve the problem that the heat collecting element 645 has a poor heat collecting effect due to the unreasonable structural design of the heat collecting element 645, this embodiment proposes that the heat collecting element 645 is a bent sheet structure and the heat collecting element 645 includes a first segment 6451 and a second segment 6452; the first segment 6451 and the second abutment 644 are connected together, and the second segment 6452 is connected to the first segment 6451; the second segment 6452 extends in a direction away from the first abutment 642, and the second segment 6452 is formed with a plurality of spaced ventilation holes 6453; the ventilation holes 6453 are used to reduce thermal resistance, so that the temperature on both sides of the first segment 6451 and the second abutment 644 is evenly distributed, so that the heat is concentrated on the abutment holes 6443, and the fusible alloy part 643 can promptly sense changes in the ambient temperature; when the fire extinguishing device is in a non-working state, one end of the second trigger member is fixed between the abutment boss 612 and the heat collecting element 645; specifically, the first segment 6451 and the second abutment 644 are riveted together.

[0190] To address the problem that the abutment force between the heat collecting member 645 and the second trigger member cannot be adjusted, this embodiment proposes that the first abutment member 642, the fusible alloy member 643, the second abutment member 644, the heat collecting member 645, and one end of the second trigger member are sequentially disposed in the groove 613 along the direction from the mounting boss 611 to the abutment boss 612.

[0191] The temperature sensing mechanism 64 also includes a third abutment 641, which is rotatably arranged in the boss mounting hole 6111, and one end of the third abutment 641 abuts against the end of the first abutment 642 away from the fusible alloy part 643; by rotating the third abutment 641, the abutment force between the second abutment 644 and the second trigger part or the abutment force between the heat collecting part 645 and the second trigger part can be adjusted.

[0192] Furthermore, the third abutment member 641 is threadedly connected to the boss mounting hole 6111; preferably, the third abutment member 641 is a top screw.

[0193] In this embodiment, the fire extinguishing device also includes a detection unit and a control unit. The detection unit is used to detect the displacement signal of the trigger component. The detection unit is, for example, a displacement sensor. The control unit is connected to the detection unit. The control unit is configured to control the Internet of Things home system to switch from a safety scene mode to a fire scene mode according to the displacement signal detected by the detection unit. The fire scene mode includes at least one of cutting off the gas pipeline, turning off the gas stove, and cutting off the power supply. In this embodiment, the displacement action of the trigger component is detected by the detection unit, so that the fire can be detected in time, and the Internet of Things home system can be controlled to automatically enter the fire scene mode at the early stage of the fire, so that the gas, gas stove and power supply can be automatically shut down, which can avoid further aggravation of the fire to a certain extent.

[0194] In other embodiments, the fire extinguishing device further includes a detection unit and a control unit, the control unit includes a control module and a wireless communication module, the control module is connected to the detection unit, and the control module is connected to the smart terminal via the wireless communication module, the control module is configured to receive the displacement signal detected by the detection unit and convert the displacement signal into an alarm message, and send the alarm message to the smart terminal via the wireless communication module; wherein the smart terminal includes, for example, a mobile terminal, a tablet computer, a laptop computer or other smart display device. The alarm signal can be sent to the user's smart terminal or to the fire department's smart terminal. When the detection unit detects the displacement signal of the trigger component, it indicates that a fire has occurred in the environment where the fire extinguishing device is currently located. When the user is not at the fire scene, the fire extinguishing device can promptly send the fire situation to the user or the fire department at the early stage of the fire, so that fire fighting and rescue can be carried out quickly before the fire spreads.

[0195] In summary, as shown in Figures 8a to 9b, when the fire extinguishing device is in the non-operating state, the blocking member 24 closes the discharge channel, the nozzle 23 and the housing cavity 13 are not connected; the bottle seal seals the bottle mouth, and the storage bottle 31 and the housing cavity 13 are not connected; under the abutment of the temperature sensing mechanism 64, the trigger assembly 62 is fixed to one end of the slide 61, the elastic member 63 stores energy, and the striker 53 is away from the bottle seal 33;

[0196] When the fire extinguishing device is in operation, the blocking member 24 opens the discharge passage, and the nozzle 23 is connected to the housing cavity 13; the temperature sensing mechanism 64 loses its abutment effect, the trigger assembly 62 moves toward the direction close to the striker, and drives the striker 5 to puncture the bottle seal 33, causing the bottle mouth to open; the storage bottle 31 is connected to the housing cavity 13 through the connector passage 414 and the connector through-hole 4113; the liquid carbon dioxide in the storage bottle 31 is discharged and expanded into gaseous carbon dioxide, which enters the housing cavity 13 through the connector passage 414 and the connector through-hole 4113, and mixes with potassium salt and water to generate a fire extinguishing agent containing bicarbonate; the fire extinguishing agent is sprayed through the nozzle 23, thereby extinguishing the fire;

[0197] The fire extinguishing device in this embodiment can be used in kitchens, living rooms, bedrooms, etc. The fire extinguishing device can be installed on the roofs of kitchens, living rooms, and bedrooms so that fire extinguishing agents can be sprayed over a larger range when a fire occurs.

[0198] While the exemplary embodiments of the present disclosure have been specifically illustrated and described above, it should be understood that the present disclosure is not limited to the detailed structures, configurations, or implementations described herein; rather, the present disclosure is intended to encompass various modifications and equivalent configurations within the spirit and scope of the appended claims.

Claims

1. A temperature-sensing self-starting fire extinguishing device, characterized in that: include: A shell (1) having a shell installation port (141) and a shell discharge port (142) formed on its shell wall, and a shell cavity (13) formed inside the shell (1); the shell cavity (13) and the shell discharge port (142) are in communication; A connecting assembly (4), comprising a connecting member (41), the connecting member (41) being arranged at the shell mounting opening (141); a connecting member channel (414) being formed inside the connecting member (41), a connecting member through hole (4113) being formed on a side wall of the connecting member (41), the connecting member through hole (4113) being in communication with the connecting member channel (414) and the shell cavity (13); A striker assembly (5), comprising a striker (53), wherein the striker (53) is disposed in the connector channel (414); A storage bottle assembly (3) includes a storage bottle (31), wherein the storage bottle (31) is arranged at one end of the connector channel (414); a bottle seal is provided at the bottle mouth of the storage bottle (31); A temperature-sensing trigger mechanism (6) comprises a slide seat (61), a trigger assembly (62) and a temperature-sensing mechanism (64); the slide seat (61) is arranged at the other end of the connecting member channel (414); a slideway (615) is formed inside the slide seat (61), and the slideway (615) is connected to the connecting member channel (414); the trigger assembly (62) is slidably arranged in the slideway (615); the temperature-sensing mechanism (64) is arranged at one end of the slide seat (61) away from the connecting member channel (414), and the temperature-sensing mechanism (64) includes an abutting assembly; The fire extinguishing device is provided with a non-working state and a working state; When the fire extinguishing device is in the non-operating state, the pressure in the housing cavity (13) is normal pressure, the bottle sealing member seals the bottle opening, and the storage bottle (31) and the housing cavity (13) are not connected; the abutting component can apply an abutting force to one end of the trigger component (62) to fix the trigger component (62); When the fire extinguishing device is in the working state, the abutment assembly loses its abutment effect on the trigger assembly (62), the trigger assembly (62) can slide and carry the striker (53) to pierce the bottle seal, and the storage bottle (31) and the shell cavity (13) are connected through the connector channel (414) and the connector through hole (4113); the shell discharge port (142) can discharge the fire extinguishing agent in the shell cavity (13).

2. The temperature-sensing self-starting fire extinguishing device according to claim 1, characterized in that: The shell (1) is an annular structure, and the shell mounting opening (141) is formed on the radial inner side of the shell (1); the shell (1) is formed with an upper accommodating space (115) at the top of the shell mounting opening (141), and the shell (1) is formed with a lower accommodating space (125) at the bottom of the shell mounting opening (141); the shell (1) is formed with the shell discharge opening (142) on the bottom wall; At least a portion of the storage bottle (31) is disposed in the upper accommodation space (115), and at least a portion of the slide seat (61) is disposed in the lower accommodation space (125).

3. The temperature-sensing self-starting fire extinguishing device according to claim 2, characterized in that: The shell (1) includes an upper shell (11) and a lower shell (12), and the upper shell (11) and the lower shell (12) are buckled together to form the shell cavity (13); the radial outer wall of the upper shell (11) and the radial outer wall of the lower shell (12) are connected together; the radial inner wall of the upper shell (11) is arranged to form an upper shell mounting opening, and the radial inner wall of the lower shell (12) is arranged to form a lower shell mounting opening, and the radial inner wall of the upper shell (11) and the radial inner wall of the lower shell (12) are spaced apart to form a shell gap (143); the upper shell mounting opening and the shell cavity (13) are connected through the shell gap (143), and the lower shell mounting opening and the shell cavity (13) are connected through the shell gap (143).

4. The temperature-sensing self-starting fire extinguishing device according to claim 3, characterized in that: The connecting member (41) comprises an upper connecting head (412), a base (411) and a lower connecting head (413) which are arranged in sequence, wherein the base (411) is arranged in the shell gap (143); the upper connecting head (412) passes through the upper shell installation opening and is located in the upper accommodating space (115); the lower connecting head (413) passes through the lower shell installation opening and is located in the lower accommodating space (125); The connecting assembly (4) further comprises an upper nut (42) and a lower nut (43), wherein the upper nut (42) is arranged on the upper connecting head (412) so that the radial inner side wall of the upper shell (11) is arranged between the base (411) and the upper nut (42); and the lower nut (43) is arranged on the lower connecting head (413) so that the radial inner side wall of the lower shell (12) is arranged between the base (411) and the lower nut (43).

5. The temperature-sensing self-starting fire extinguishing device according to claim 4, characterized in that: The storage bottle assembly (3) further comprises a protective cover (32), wherein the protective cover (32) is arranged on the outside of the storage bottle (31) and the protective cover (32) and the upper nut (42) are connected together.

6. The temperature-sensing self-starting fire extinguishing device according to claim 1, characterized in that: The firing pin assembly (5) further includes a firing pin sleeve (51), which is arranged in the connecting piece channel (414); a sleeve channel (511) is formed inside the firing pin sleeve (51), and a slidable firing pin (53) is arranged in the sleeve channel (511); a sleeve through hole (512) is formed on the side wall of the firing pin sleeve (51), and the sleeve through hole (512) communicates with the sleeve channel (511) and the connecting piece channel (414).

7. The temperature-sensing self-starting fire extinguishing device according to claim 6, characterized in that: The striker (53) is slidably arranged in the sleeve channel (511) through the striker base (52); a striker channel (531) is formed inside the striker (53), and one end of the striker channel (531) is open; a striker through hole (532) is formed on the side wall of the striker (53), and the striker through hole (532) connects the striker channel (531) and the sleeve channel (511).

8. The temperature-sensing self-starting fire extinguishing device according to claim 1, characterized in that: The slide seat (61) comprises a first slide seat end and a second slide seat end that are arranged opposite to each other, the first slide seat end is connected to the connecting member (41), and the second slide seat end is provided with the temperature sensing mechanism (64); The trigger assembly (62) includes a first trigger member and a second trigger member, wherein the first trigger member is disposed near the first slide end, and the second trigger member is disposed near the second slide end; one end of the first trigger member and the second trigger member are movably connected, and an elastic member (63) is connected between the first trigger member and the second slide end; When the fire extinguishing device is in the non-working state, the abutment assembly can apply an abutment force to one end of the second trigger member, so that the second trigger member is fixed to the second slide seat end, and the elastic member (63) stores energy; When the fire extinguishing device is in the working state, the elastic member (63) releases energy and drives the first trigger member and the second trigger member to slide toward the first sliding seat end, and the first trigger member can slide with the striker (53).

9. The temperature-sensing self-starting fire extinguishing device according to claim 8, characterized in that: The trigger assembly (62) further includes a middle piece (622), the middle piece (622) including a first connecting end and a second connecting end arranged opposite to each other; the first connecting end is fixedly connected to the first trigger piece, and the second connecting end is movably connected to one end of the second trigger piece; Wherein, the movable connection includes: the second trigger member can rotate relative to the middle member (622) around the axis of the slide (615) and / or swing with the axis of the slide (615) as the center line and / or slide along the axis of the slide (615).

10. The temperature-sensing self-starting fire extinguishing device according to claim 8, characterized in that: The second sliding seat end is formed with an abutting boss (612) and a mounting boss (611) that are arranged opposite to each other, a groove (613) is formed between the abutting boss (612) and the mounting boss (611), and the groove (613) is connected to the slideway (615); The abutment assembly comprises a first abutment member (642), a fusible alloy member (643) and a second abutment member (644); along the direction from the mounting boss (611) to the abutment boss (612), the first abutment member (642), the fusible alloy member (643) and the second abutment member (644) are arranged in sequence; When the fusible alloy member (643) is in an unmelted state, the first abutting member (642) can apply an abutting force to the second trigger member via the fusible alloy member (643) and the second abutting member (644); When the fusible alloy part (643) is heated and melted, the abutment effect between the first abutment part (642) and the second abutment part (644) is lost, and the second abutment part (644) cannot apply an abutment force to the second trigger part.

11. The temperature-sensing self-starting fire extinguishing device according to claim 10, characterized in that: A rotatable third abutting member (641) is provided on the mounting boss (611), and one end of the third abutting member (641) abuts against an end of the first abutting member (642) away from the fusible alloy member (643); The second abutment member (644) includes a first abutment wall (6441) and a second abutment wall (6442) that are arranged opposite to each other, the first abutment wall (6441) is formed with an abutment hole (6443), and along the hole depth direction of the abutment hole (6443), the first abutment member (642) and the fusible alloy member (643) are sequentially arranged in the abutment hole (6443); the second abutment wall (6442) is connected to a heat collecting member (645); the heat collecting member (645) can collect heat and transfer the heat to the second abutment member (644).

12. The temperature-sensing self-starting fire extinguishing device according to claim 1, characterized in that: It also includes a nozzle assembly (2), the nozzle assembly (2) being arranged at the shell discharge port (142) and the nozzle assembly (2) including a nozzle (23); a discharge channel being connected between the shell discharge port (142) and the nozzle (23); When the fire extinguishing device is in the non-working state, the pressure in the housing cavity (13) is normal pressure, the discharge passage is closed, and the nozzle (23) and the housing cavity (13) are not connected; When the fire extinguishing device is in the working state, the discharge channel is opened, the nozzle (23) is communicated with the shell cavity (13), and the nozzle (23) can spray the fire extinguishing agent in the shell cavity (13) toward the fire source.

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