CN219743764U - Mechanical automatic fire extinguisher - Google Patents

Abstract

The utility model provides a mechanical automatic fire extinguishing device, relates to the technical field of fire extinguishing equipment, and solves the problem that an automatic fire extinguishing device for small space is lacking in the prior art. The device includes casing, goes out liquid mechanism, sealing diaphragm structure and fire source detection mechanism, is provided with the cavity that is used for holding fire extinguishing agent in the casing, goes out liquid mechanism and fire source detection mechanism and all set up in the cavity, and the casing is arranged in to the partial section of fire source detection mechanism, goes out to be provided with sealing diaphragm structure in the liquid mechanism, and the fire source detection mechanism can be triggered the response when external environment temperature reaches the setting value, releases high-pressure gas to in the cavity, and the fire extinguishing agent in the cavity can open sealing diaphragm structure in order to spout outside the casing through going out liquid mechanism under the promotion of high-pressure gas. The device has small whole volume, can flexibly protect small space areas, is purely mechanically triggered, and does not need to be additionally provided with power supply.

Description

Mechanical automatic fire extinguisher

Technical Field

The utility model relates to the technical field of fire-fighting equipment, in particular to a mechanical automatic fire-extinguishing device.

Background

The fire extinguishing devices commonly used in the market are fire-fighting pipelines and spraying devices in buildings, which are generally only installed in corridor, office space, factory and the like, and because the installation and maintenance of the fire-fighting pipelines and the spraying devices in the buildings are troublesome, the places to be prevented can be covered only by selecting proper places. Is not suitable for the use places in the home.

When a fire disaster happens, the most common fire extinguishing mode used by families is to connect a water pipe by opening a fire hydrant of a corridor, and the fire extinguisher needs to be manually opened to prevent water, start the fire extinguisher and the like; when a family uses the fire-fighting pipeline of a corridor, if the fire-fighting pipeline is a person without fire-fighting training, the fire hydrant is difficult to connect in a short time, and the fire-fighting mode needs longer reaction time.

Some families also have hand-held extinguishers, fire-extinguishing blankets, throwing fire-extinguishing bombs and the like, but all the fire-extinguishing products need manual intervention and bring risks to operators.

In summary, the present inventors found that at least the following technical problems exist in the prior art:

the fire extinguishing modes which can be used in families are all required to be used by people. If a fire is not in the home, it is difficult to extinguish the fire in time. Moreover, automatic fire extinguishing devices for small spaces, such as kitchen stoves, fuel oil automobile engine cabins, electric automobile battery cabins, independent battery units in energy storage stations, certain electric appliances (such as electric warm air and ovens) with possibility of burning, inflammable matter storage areas and the like are not available in the market at present.

Disclosure of Invention

The utility model aims to provide a mechanical automatic fire extinguishing device which solves the technical problem that the automatic fire extinguishing device for small space is lacking in the prior art. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a mechanical automatic fire extinguishing device, which comprises a shell, a liquid outlet mechanism, a sealing diaphragm structure and a fire source detection mechanism, wherein a cavity for containing a fire extinguishing agent is arranged in the shell, the liquid outlet mechanism and the fire source detection mechanism are both arranged in the cavity, a part of sections of the fire source detection mechanism are arranged outside the shell, the sealing diaphragm structure is arranged in the liquid outlet mechanism, when the temperature of the external environment reaches a set value, the fire source detection mechanism can release high-pressure gas into the cavity, and the fire extinguishing agent in the cavity can open the sealing diaphragm structure under the pushing of the high-pressure gas so as to be sprayed out of the shell through the liquid outlet mechanism.

As a further improvement of the utility model, the liquid outlet mechanism comprises a liquid outlet component and a spraying component connected with the liquid outlet component, the sealing membrane structure is arranged between the liquid outlet component and the spraying component, and the fire extinguishing agent in the cavity can flow into the spraying component through the liquid outlet component.

As a further improvement of the utility model, the spraying assembly comprises a first spraying pipeline, a second spraying pipeline and a spray head, wherein the first spraying pipeline and the second spraying pipeline are connected with the liquid outlet assembly through a connecting mechanism, the spray head is fixedly arranged on the shell, and the fire extinguishing agent in the cavity can flow into the corresponding spray head through the first spraying pipeline and the second spraying pipeline respectively.

As a further development of the utility model, a fixed connection is formed between the first injection line and the connection, between the second injection line and the connection, and between the tapping assembly and the connection by means of welding, threading or bonding.

As a further improvement of the utility model, the housing comprises a housing body, a sealing end cover and an alarm end cover, wherein the sealing end cover and the alarm end cover are respectively arranged at two ends of the housing body along the axial direction of the housing body.

As a further improvement of the utility model, the alarm end cap comprises an end cap body, a pressure sensor, a control module and an alarm module, wherein the pressure sensor is arranged on one side of the end cap body facing the cavity, and the pressure sensor comprises: the pressure sensor is used for converting acting force acting on the pressure sensor into an electric signal and outputting the electric signal; the control module is electrically connected with the pressure sensor and is used for receiving the electric signal and generating an alarm control signal according to the electric signal; the alarm module is electrically connected with the control module and is used for receiving the alarm control signal and giving an alarm.

As a further improvement of the utility model, the alarm module is arranged inside the handheld electronic device, and the alarm module specifically comprises an audible alarm, a vibration alarm and/or a light alarm.

As a further improvement of the utility model, the fire source detection mechanism comprises a main cylinder body, a temperature sensing trigger mechanism, a puncture mechanism, an air outlet mechanism and an air storage mechanism which are arranged on the main cylinder body and are horizontally communicated with the main cylinder body; the main cylinder body is provided with a containing cavity for the puncture mechanism to slide along the horizontal direction, the temperature sensing trigger mechanism comprises a temperature sensing limit part and a rebound component, the temperature sensing limit part is vertically communicated with the main cylinder body and used for locking and limiting the main cylinder body, and the rebound component is sleeved on the puncture mechanism and used for driving the puncture mechanism to puncture the air outlet end of the air storage mechanism; the gas storage mechanism is used for storing high-pressure power gas for triggering the fire alarm system; the air outlet mechanism is communicated with the air outlet end of the air storage mechanism and is used for conveying high-pressure power air into the cavity.

As a further improvement of the utility model, the puncture end of the puncture mechanism extends towards the direction of the gas storage mechanism to form a puncture needle, and the peripheral wall of the limit end of the puncture mechanism is provided with a limit groove for inserting the temperature sensing trigger mechanism along the circumferential direction of the limit groove;

the temperature sensing limit part comprises a fixing component, a temperature sensing component and a bayonet lock, wherein the fixing component is provided with a sliding channel for the bayonet lock to vertically slide, the sliding channel is vertically communicated with a containing cavity of the main cylinder body, the upper part of the temperature sensing component is embedded in the sliding channel and used for supporting the bayonet lock, and the bayonet lock is matched with the limit groove and used for a puncture mechanism.

As a further improvement of the utility model, the shell is cylindrical, square or rectangular, the shell is made of metal materials, and the first injection pipeline and the second injection pipeline are made of metal materials, plastic materials or rubber materials.

The mechanical automatic fire extinguishing device provided by the utility model has the advantages that the chamber for containing the fire extinguishing agent is arranged in the shell, a part of the section of the fire source detection mechanism is arranged outside the shell, the sealing membrane structure is arranged in the liquid outlet mechanism, when the ambient temperature near the fire source detection mechanism reaches a set value, the fire source detection mechanism can be activated, the activated fire source detection mechanism can release high-pressure gas into the chamber, and the fire extinguishing agent in the chamber can be pushed by the high-pressure gas to open the sealing membrane structure so as to be sprayed out of the shell through the liquid outlet mechanism. The device has small whole volume and can flexibly protect small space areas. The energy storage station can be installed on a kitchen protection cooking bench, can be used for protecting an engine cabin of a small car, can be used for protecting a battery unit of an energy storage station, can be used for protecting flammable electric appliances and the like near the electric appliances, and avoids larger loss caused by fire spreading. The utility model can trigger the fire source detection mechanism to respond when the temperature in the protection area rises to the trigger value by detecting the ambient temperature. And the trigger is purely mechanical, and no additional power supply is needed.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a mechanical automatic fire extinguishing apparatus according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of a mechanical automatic fire extinguishing apparatus provided by an embodiment of the present utility model;

fig. 3 is a schematic structural view of a fire source detecting mechanism according to an embodiment of the present utility model.

Reference numerals: 1. a housing; 11. a housing body; 12. sealing the end cover; 13. an alarm end cover; 2. a liquid outlet component; 3. a sealing membrane structure; 4. a jetting assembly; 41. a first injection line; 42. a second injection line; 43. a spray head; 5. a connecting mechanism; 6. a chamber; 7. a fixing nut; 8. a fire source detection mechanism; 81. a main cylinder; 8101. a receiving chamber; 8102. a first step surface; 8103. an air outlet channel; 82. a bayonet lock; 83. a fixing assembly; 8301. a sliding channel; 84. a temperature sensing assembly; 85. a protective sleeve; 86. a rebound assembly; 87. a puncture mechanism; 871. a puncture needle; 872. a limit groove; 873. a second step surface; 88. an air outlet mechanism; 89. a gas storage mechanism; 891. an air outlet end; 810. a gas storage housing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc., refer to an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or capable of communicating with each other, and can be communication between two elements or interaction relationship between two elements; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

Automatic fire extinguishing devices for small spaces are lacking in the market, such as protection of kitchen stoves only, protection of engine compartments of fuel automobiles, protection of battery compartments of electric automobiles, protection of independent battery units in energy storage stations, protection of certain electric appliances (such as electric warmers, ovens and the like) which are possible to burn, protection of inflammable matter storage areas and the like.

Based on the above, the utility model provides a mechanical automatic fire extinguishing device which is suitable for automatic fire extinguishing in a small space.

The technical scheme provided by the utility model is explained in more detail below with reference to fig. 1 to 3.

Referring to fig. 1-2, the utility model provides a mechanical automatic fire extinguishing device, which comprises a shell 1, a liquid outlet mechanism, a sealing membrane structure 3 and a fire source detection mechanism 8, wherein a chamber 6 for containing fire extinguishing agent is arranged in the shell 1, the fire extinguishing agent in the embodiment is stored in the area when in standby, and the capacity of the fire extinguishing agent can be adjusted according to the size of a protection area. The liquid outlet mechanism and the fire source detection mechanism 8 are both arranged in the cavity 6, a part of the section of the fire source detection mechanism 8 is arranged outside the shell 1, the sealing membrane structure 3 is arranged in the liquid outlet mechanism, when the external environment temperature reaches a set value, the fire source detection mechanism 8 can release high-pressure gas into the cavity 6, and the fire extinguishing agent in the cavity 6 can be pushed by the high-pressure gas to open the sealing membrane structure 3 so as to be sprayed out of the shell 1 through the liquid outlet mechanism.

The liquid outlet mechanism comprises a liquid outlet component 2 and a spraying component 4 connected with the liquid outlet component 2, a sealing membrane structure 3 is arranged between the liquid outlet component 2 and the spraying component 4, and the sealing membrane structure 3 can ensure that the fire extinguishing agent can not leak under the standby state. When the pressure in the chamber 6 increases, the fire extinguishing agent will open the sealing membrane structure 3 under the pushing of the pressure, and flow into the spraying assembly 4 through the liquid outlet assembly 2.

Specifically, the injection assembly 4 in this embodiment includes a first injection pipe 41, a second injection pipe 42, and a nozzle 43, where the first injection pipe 41 and the second injection pipe 42 are made of metal, plastic, or rubber. The first injection pipeline 41 and the second injection pipeline 42 are connected with the liquid outlet component 2 through the connecting mechanism 5, the ends, far away from the connecting mechanism 5, of the first injection pipeline 41 and the second injection pipeline 42 are connected with spray heads 43, the spray heads 43 are fixedly arranged on the shell 1, and the fire extinguishing agent in the chamber 6 can flow into the corresponding spray heads 43 through the first injection pipeline 41 and the second injection pipeline 42 respectively.

The first injection line 41 and the connection means 5, the second injection line 42 and the connection means 5 and the liquid outlet assembly 2 and the connection means 5 are fixedly connected by means of welding, threading or bonding.

When the mechanical automatic fire extinguishing device starts to work, the fire extinguishing agent can be pushed out of the shell 1 by the high pressure in the chamber 6 through the first injection pipeline 41 or/and the second injection pipeline 42, atomized and sprayed out through the spray head 43 and sprayed to a fire area. The first injection line 41, the second injection line 42 and the corresponding nozzle 43 may be connected together by welding, screwing, bonding, or the like. While the spray head 43 in this embodiment can be locked and fixed to the housing 1 by the fixing nut 7.

The casing 1 in this embodiment includes a casing body 11, a seal end cover 12, and an alarm end cover 13, where the seal end cover 12 and the alarm end cover 13 are respectively disposed at two ends of the casing body 11 along the axial direction thereof. After filling the interior of the chamber 6 with extinguishing agent, the whole device is sealed by this sealing cap 12. In addition, a manual trigger can be additionally arranged on the sealing end cover 12. When the fire source detection mechanism in the device is triggered, the alarm end cover 13 can be triggered, can give an alarm to inform a user that a fire occurs in a protection area, and the fire extinguishing device is triggered.

As an alternative implementation of the embodiment of the utility model, the alarm end cap 13 comprises an end cap body, a pressure sensor, a control module and an alarm module, the pressure sensor being arranged on the end cap body on the side facing the chamber 6. The pressure sensor is used for converting acting force acting on the pressure sensor into an electric signal and outputting the electric signal; the control module is electrically connected with the pressure sensor and is used for receiving the electric signal and generating an alarm control signal according to the electric signal; the alarm module is electrically connected with the control module and is used for receiving the alarm control signal and giving an alarm.

Further, the alarm module is arranged in the handheld electronic equipment, and the alarm module specifically comprises an audible alarm, a vibration alarm and/or a lamplight alarm.

The mechanical automatic fire extinguishing device provided by the utility model is characterized in that a cavity 6 for containing fire extinguishing agent is arranged in a shell 1, a part of a fire source detection mechanism 8 is arranged outside the shell 1, a sealing membrane structure 3 is arranged in a liquid outlet mechanism, when the ambient temperature near the fire source detection mechanism 8 reaches a set value, the fire source detection mechanism 8 is activated, the activated fire source detection mechanism 8 can release high-pressure gas into the cavity 6, and the fire extinguishing agent in the cavity 6 can be pushed by the high-pressure gas to open the sealing membrane structure 3 so as to be sprayed out of the shell 1 through the liquid outlet mechanism. The device has small whole volume and can flexibly protect small space areas. The energy storage station can be installed on a kitchen protection cooking bench, can be used for protecting an engine cabin of a small car, can be used for protecting a battery unit of an energy storage station, can be used for protecting flammable electric appliances and the like near the electric appliances, and avoids larger loss caused by fire spreading. The utility model can trigger the fire source detection mechanism 8 to respond when the temperature in the protection area rises to the trigger value by detecting the ambient temperature. And the trigger is purely mechanical, and no additional power supply is needed.

As shown in fig. 3, the fire source detection mechanism 8 in the present embodiment includes a main cylinder 81, a temperature-sensitive trigger mechanism, a puncture mechanism 87, and an air-out mechanism 88 provided on the main cylinder 81, and an air storage mechanism horizontally communicating with the main cylinder 81. The main cylinder 81 has a containing cavity 8101 for the puncture mechanism 87 to slide along the horizontal direction, the temperature-sensing trigger mechanism includes a temperature-sensing limit part and a rebound assembly 86, which are vertically communicated with the main cylinder 81, when reaching the preset trigger response temperature of the temperature-sensing limit part, the temperature-sensing limit part unlocks the puncture mechanism 87, and the rebound assembly 86 drives the puncture mechanism 87 to puncture the air outlet end 891 of the air storage mechanism. The gas storage mechanism is used for storing high-pressure power gas for triggering the fire alarm system. The air outlet mechanism 88 is communicated with an air outlet end 891 of the air storage mechanism and is used for conveying high-pressure power air to the fire alarm system to trigger response.

The piercing end of the piercing mechanism 87 extends toward the air storage mechanism to form a piercing needle 871, and a limiting groove 872 into which the temperature-sensing trigger mechanism is inserted is formed in the peripheral wall of the limiting end of the piercing mechanism 87 along the circumferential direction thereof. As an alternative embodiment, the temperature sensing limiting part includes a fixing component 83, a temperature sensing component 84, a bayonet 82 and a rebound component 86, the fixing component 83 has a sliding channel 8301 for the bayonet 82 to slide vertically, the sliding channel 8301 is vertically communicated with a containing cavity 8101 of the main cylinder 81, the upper part of the temperature sensing component 84 is embedded in the sliding channel 8301 and is used for supporting the bayonet 82, the bayonet 82 is matched with the limiting groove 872, and is used for the puncture mechanism 87, and the rebound component 86 is sleeved on the puncture mechanism 87. Rebound assembly 86 is preferably a spring, disc spring or the like that can be stored energy by compression of a mechanically resilient element. The fixed component 83, the bayonet lock 82 and the temperature sensing component 84 that set up perpendicularly with the main cylinder body 81 have reduced occupation space when the fire source detection device installs, have improved space utilization, moreover, the response end orientation of temperature sensing component 84 is waited to detect the environment, has improved the sensitivity of triggering, and pure mechanical triggering need not to additionally to be equipped with the power, improves the reliability, the security and the application scope of fire source detection device, compromise aesthetic property, economic nature, reliability and practicality.

When the bayonet 82 is in abutting connection with the limiting groove 872, the rebound assembly 86 is in a compressed state, one end of the rebound assembly 86 abuts against the first step surface 8102 of the accommodating cavity 8101, and the other end is fixedly connected with the second step surface 873 of the puncture mechanism 87. When the locking of the limiting groove 872 is released by the locking pin 82, the rebound assembly 86 resets and drives the puncture mechanism 87, so that the puncture needle 871 partially/completely pierces the air outlet end 891 of the air storage mechanism. An air outlet channel 8103 for releasing air is formed between the piercing end of the piercing mechanism 87 and the air outlet end 891 of the air storage mechanism, and an air outlet mechanism 88 is vertically arranged on the main cylinder 81 and is communicated with the air outlet channel 8103.

As an alternative embodiment, the temperature sensing assembly 84 employs a glass column or a fusible metal column filled with a thermal expansion liquid. The part of the temperature sensing assembly 84 exposed out of the fixing assembly 83 is sleeved with a protective sleeve 85, so that the temperature sensing end of the temperature sensing assembly 84 is protected to a certain extent, and transportation is convenient. In this embodiment, the specific positions of the temperature sensing limiting part and the air outlet mechanism 88 are not limited, as long as the temperature sensing limiting part and the air outlet mechanism 88 are vertically communicated with the main cylinder 81, and any position within the 360-degree range of the main cylinder 81 is within the protection scope of the present utility model.

When the fire source detecting mechanism 8 is in a standby state, the top end of the bayonet 82 is in abutting connection with the inner wall of the limiting groove 872, and the puncture needle 871 is at a certain distance from the air outlet end 891 of the air storage mechanism 89, so as to lock the puncture mechanism 87, and at this time, the rebound assembly 86 is always in a compressed state. When the on-site ambient temperature reaches the preset trigger temperature of the glass column or the fusible metal column, the glass column is broken or the fusible metal column is melted and falls off from the fixing component 83, the support of the clamping pin 82 is released, so that the locking of the limiting groove 872 is released, the rebound component 86 is reset to provide the puncture mechanism 87 with a horizontal rightward thrust force towards the gas storage mechanism, when the limiting groove 872 moves rightward, the clamping pin 82 is provided with a downward thrust force to enable the clamping pin 82 to slide out along the sliding channel 8301, meanwhile, the puncture needle 871 is driven to puncture the seal of the gas outlet end 891 of the gas storage mechanism 89, the gas storage mechanism 89 is punctured and then releases high-pressure power gas which can trigger the mechanical automatic fire extinguishing device, and the high-pressure power gas sequentially enters the cavity 6 through the gas outlet channel 8103 and the gas outlet mechanism 88, so that the mechanical automatic fire extinguishing device is driven to start.

When the temperature of the area protected by the mechanical automatic fire extinguishing apparatus rises to a specified temperature, the fire source detection mechanism 8 is activated. The activated fire source detection mechanism 8 will release high pressure gas into the chamber 6 of the housing 1. The fire extinguishing agent in the chamber 6 is pushed by high-pressure gas, opens the sealing membrane structure 3, and flows into the spraying assembly 4 through the liquid outlet assembly 2. The fire extinguishing agent flowing into the first injection line 41 and the second injection line 42 is atomized and sprayed through the nozzle 43 to the area where fire extinguishing is required. The number of the spray heads 43 in this embodiment may be plural, and may be adjusted according to the requirements of the scope to be protected. Each nozzle 43 protects a conical region ranging from 30 to 120. The applicable temperature of the whole fire extinguishing system is-50 ℃ to 80 ℃.

The housing 1 in this embodiment may have a cylindrical, square, rectangular or other shape, and is made of a metal material. The fire extinguishing agent can be selected from water-based fire extinguishing agent, foam fire extinguishing agent, dry powder fire extinguishing agent, perfluorinated hexanone, heptafluoropropane and the like according to requirements. The portion of the fire source detecting mechanism 8 extending out of the housing 1 and the portion of the sprinkler 43 extending out of the housing 1 may not be on the same horizontal line, and may be axially deflected by an angle according to the position to be detected and the position to extinguish the fire depending on the use requirements.

The mechanical automatic fire extinguishing device integrates three functions of fire monitoring, fire extinguishing and alarming, is pressureless under standby, has no defects of air leakage and pressure relief, reduces false triggering and failure, reduces installation and maintenance difficulty, and is relatively safe in the processes of storage, transportation and installation. The whole device is small and flexible, can be used for protecting a kitchen range, a small automobile engine room, a battery unit in an energy storage station or flammable electric appliances nearby, and the like, and solves the problem that the prior fire extinguishing technology cannot protect a short plate in a small space.

The foregoing is merely illustrative embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present utility model, and the utility model should be covered. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a mechanical type automatic fire extinguishing device, its characterized in that includes casing, play liquid mechanism, sealing diaphragm structure and fire source detection mechanism, wherein, be provided with in the casing and be used for holding the cavity of fire extinguishing agent, go out liquid mechanism with fire source detection mechanism all set up in the cavity, the partial section of fire source detection mechanism is arranged in outside the casing, be provided with in the play liquid mechanism sealing diaphragm structure, when external environment temperature reaches the setting value fire source detection mechanism can release high-pressure gas extremely in the cavity, fire extinguishing agent in the cavity can be opened under the promotion of high-pressure gas sealing diaphragm structure is in order to pass through play liquid mechanism blowout extremely outside the casing.

2. The mechanical automatic fire extinguishing device according to claim 1, wherein the liquid outlet mechanism comprises a liquid outlet component and a spraying component connected with the liquid outlet component, the sealing membrane structure is arranged between the liquid outlet component and the spraying component, and the fire extinguishing agent in the cavity can flow into the spraying component through the liquid outlet component.

3. The mechanical automatic fire extinguishing device according to claim 2, wherein the spraying assembly comprises a first spraying pipeline, a second spraying pipeline and a spray head, the first spraying pipeline and the second spraying pipeline are connected with the liquid outlet assembly through a connecting mechanism, the first spraying pipeline and the second spraying pipeline are both connected with the spray head, the spray head is fixedly arranged on the shell, and the fire extinguishing agent in the cavity can flow into the corresponding spray head through the first spraying pipeline and the second spraying pipeline respectively.

4. A mechanical automatic fire extinguishing apparatus according to claim 3, wherein the first injection line and the connection means, the second injection line and the connection means, and the liquid outlet assembly and the connection means are fixedly connected by welding, screwing or bonding.

5. The mechanical automatic fire extinguishing device according to claim 1, wherein the housing includes a housing body, a seal end cap, and an alarm end cap, both ends of the housing body in an axial direction thereof being provided with the seal end cap and the alarm end cap, respectively.

6. The mechanical automatic fire suppression apparatus according to claim 5, wherein the alarm end cap comprises an end cap body, a pressure sensor, a control module, and an alarm module, the pressure sensor being disposed on a side of the end cap body facing the chamber, wherein:

the pressure sensor is used for converting acting force acting on the pressure sensor into an electric signal and outputting the electric signal; the control module is electrically connected with the pressure sensor and is used for receiving the electric signal and generating an alarm control signal according to the electric signal; the alarm module is electrically connected with the control module and is used for receiving the alarm control signal and giving an alarm.

7. The mechanical automatic fire extinguishing apparatus according to claim 6, wherein the alarm module is disposed inside a handheld electronic device, and the alarm module specifically includes an audible alarm, a vibration alarm, and/or a light alarm.

8. The mechanical automatic fire extinguishing device according to claim 1, wherein the fire source detecting mechanism comprises a main cylinder, a temperature sensing triggering mechanism, a puncturing mechanism and an air outlet mechanism which are arranged on the main cylinder, and an air storage mechanism which is horizontally communicated with the main cylinder; the main cylinder body is provided with a containing cavity for the puncture mechanism to slide along the horizontal direction, the temperature sensing trigger mechanism comprises a temperature sensing limit part and a rebound component, the temperature sensing limit part is vertically communicated with the main cylinder body and used for locking and limiting the main cylinder body, and the rebound component is sleeved on the puncture mechanism and used for driving the puncture mechanism to puncture the air outlet end of the air storage mechanism; the gas storage mechanism is used for storing high-pressure power gas for triggering the fire alarm system; the air outlet mechanism is communicated with the air outlet end of the air storage mechanism and is used for conveying high-pressure power air into the cavity.

9. The mechanical automatic fire extinguishing device according to claim 8, wherein the piercing end of the piercing mechanism extends towards the direction of the gas storage mechanism to form a piercing needle, and the peripheral wall of the limiting end of the piercing mechanism is provided with a limiting groove along the circumferential direction for inserting the temperature-sensing triggering mechanism;

the temperature sensing limit part comprises a fixing component, a temperature sensing component and a bayonet lock, wherein the fixing component is provided with a sliding channel for the bayonet lock to vertically slide, the sliding channel is vertically communicated with a containing cavity of the main cylinder body, the upper part of the temperature sensing component is embedded in the sliding channel and used for supporting the bayonet lock, and the bayonet lock is matched with the limit groove and used for a puncture mechanism.

10. A mechanical automatic fire extinguishing apparatus according to claim 3, wherein the housing is cylindrical, square or rectangular, the housing is made of a metal material, and the first injection line and the second injection line are made of a metal material, a plastic material or a rubber material.