Device for self-starting a gas source by temperature detection

Abstract

Device for self-starting a gas source by temperature detection, characterized in that it comprises a compound solid propellant (11), a triggering device for ignition and a glass bubble for temperature detection for fire protection (16); the compound solid propellant (11) is installed in a first housing, the compound solid propellant (11) located at the bottom of the first housing is connected to the ignition triggering device so that it is ignited by the ignition triggering device, and the top of the first housing is provided with an opening to allow the gas generated when the compound solid propellant (11) is ignited to escape; the ignition trigger device is connected to the glass bubble for temperature sensing for fire protection (16), so that the glass bubble for temperature sensing for fire protection (16) triggers the ignition of the compound solid propellant (11) when it bursts due to heating; the triggering device for ignition comprises a piercing primer (12), a firing pin (13), a spring (14) and a coupling mechanism (15); the piercing primer (12) is arranged at the bottom of the first casing to ignite the compound solid propellant (11) in the first casing when the firing pin (13) strikes; the firing pin (13) is located at the lower end of the piercing percussion cap (12) and is at a predetermined distance from the lower end of the piercing percussion cap (12), and the firing pin (13) strikes the piercing percussion cap (12) by a reciprocating motion to cause the piercing percussion cap (12) to produce flames; the coupling mechanism (15) connects the firing pin (13) and the glass bulb for temperature sensing for fire protection (16) and the spring (14) together, and the coupling mechanism (15) in the direction of the connection with the glass bulb for temperature sensing for fire protection (16) causes the spring (14) to form a compressive force, so that the compressive force of the spring (14) is released when the glass bulb for temperature sensing for fire protection (16) bursts due to heat and drives the coupling mechanism (15) to move, whereby the coupling mechanism (15) drives the firing pin (13) connected to it to move and thus generates an impact force on the piercing primer (12); further comprising: a second housing and an end cap (17); the coupling mechanism (15) is a cross-shaped connecting structure formed by a transverse bar (151) and a vertical bar (152); the firing pin (13) comprises an upper end located near the piercing primer (12) and a connecting base; one end of the crossbar (151) is guided perpendicularly through the connecting base of the firing pin (13), and the other end is guided perpendicularly through the center of the vertical bar and is firmly connected to the vertical bar (152) to form a connecting section (153); the second housing is configured to connect the vertical rod (152) of the coupling mechanism (15), the spring (14), and the glass bulb for temperature sensing for fire protection (16) in the same direction parallel to the direction of the firing pin (13); one end of the vertical rod (152) aligned in the same direction as the firing pin (13) is connected to the glass bulb for temperature sensing for fire protection (16), and the other end of the glass bulb for temperature sensing for fire protection (16) is attached to the second housing; the spring (14) is attached to the other end of the vertical rod (152), and a through-hole is provided at the other end of the second housing, with which the end cap (17) is firmly connected from the outside of the second housing for attaching the spring (14) to the vertical rod between the second housing and the connecting section (153); In the installed state of the vertical rod (152) of the coupling mechanism (15), the spring (14) and the glass bulb for temperature sensing for fire protection (16) in the second housing, the two ends of the second housing are each connected to the glass bulb for temperature sensing for fire protection (16) and the end cap (17), and the spring (14) is in a compressed state; the height by which the spring (14) is compressed is greater than the predetermined distance between the striking end of the firing pin (13) and the striking end of the piercing primer (12).

Description

TECHNICAL AREA

[0001] The present invention belongs to the technical field of fire protection and relates in particular to a device for self-starting a gas source by means of temperature detection. STATE OF THE ART

[0002] All currently available automatic fire protection devices utilize a self-starting gas source triggered by temperature sensing as their propulsion mechanism. This mechanism relies primarily on the detection and identification of electronic components and the pressure-storing gas source to generate propulsion. The application of such a self-starting gas source triggered by temperature sensing in fire protection is relatively well-developed, simple, and practical, and it holds a significant market share.However, there are several obvious disadvantages: Firstly, both the temperature sensing element and the smoke detection element are electronic components that are prone to false alarms and failures due to their relatively high instability in detection sensitivity; secondly, it is necessary to conduct the electrical signals in the charged environment, which leads to poor reliability in complex environments, thus impairing detection and early warning; thirdly, the pressure-storing gas source is always under pressure in standby operation, which entails certain safety risks.

[0003] From DE 10 2008 060 233 A1, a device for the thermally initiated triggering of an aerosol fire extinguishing generator is known according to the prior art. SUMMARY OF THE INVENTION

[0004] Based on the technical disadvantages of the prior art, the present invention aims to provide a device for self-starting a gas source by means of temperature sensing, which uses a compound solid propellant as a reserve gas source and a glass bubble for temperature sensing for fire protection as an element for measuring an ambient temperature, wherein, by means of a triggering device connected to the two, the glass bubble for temperature sensing for fire protection, upon bursting due to heat, drives the operation of the triggering device for ignition in order to ignite the compound solid propellant, generate gas and form a gas source for driving the fire extinguishing agent.

[0005] As a technical solution, the present invention proposes a device for self-starting a gas source by temperature sensing, comprising a compound solid propellant, a triggering device for ignition, and a glass bubble for temperature sensing for fire protection; wherein the compound solid propellant is installed in a first housing, the compound solid propellant located at the bottom of the first housing is connected to the triggering device for ignition so that it is ignited by the triggering device, and an opening is provided at the top of the first housing to allow the gas generated when the compound solid propellant is ignited to escape;wherein the ignition trigger device is connected to the glass bubble for temperature sensing for fire protection, such that the glass bubble for temperature sensing for fire protection triggers the ignition of the compound solid propellant when it bursts due to heating.

[0006] The compound solid propellant is contained in the first housing and connected to the ignition trigger at the bottom of the first housing, so that it is ignited by the ignition trigger, and at the same time the ignition trigger is connected to the temperature sensing glass bubble for fire protection, so that the temperature sensing glass bubble for fire protection bursts when the activation temperature is reached, thereby generating a driving force for the ignition trigger to ignite the compound solid propellant in the first housing.It is evident that both the principle and the structure of the present invention are simple, there is no additional power supply device or electronic wiring, and the glass bubble for temperature sensing for fire protection is used as a temperature detector and driver to drive the triggering device for ignition in order to ignite the compound solid propellant and thus generate the propulsion from the gas source. Therefore, the present invention can be used in fire detection in the fire protection area, in the drive of the stored fire extinguishing agent, and in the drive of the pneumatically triggered fire extinguishing agent.

[0007] Furthermore, the ignition triggering device described above comprises a penetrating primer, a firing pin, a spring, and a coupling mechanism; the penetrating primer is arranged at the bottom of the first housing to ignite the compound solid propellant in the first housing upon impact of the firing pin; the firing pin is located at the lower end of the penetrating primer and is situated at a predetermined distance from the lower end of the penetrating primer, and the firing pin strikes the penetrating primer by a reciprocating motion to cause the penetrating primer to produce flames;The coupling mechanism connects the firing pin and the glass bulb for temperature detection for fire protection and the spring to each other, and the coupling mechanism causes the spring to form a compressive force in the direction of the connection with the glass bulb for temperature detection for fire protection, so that the compressive force of the spring is released when the glass bulb for temperature detection for fire protection bursts due to heat and drives the coupling mechanism to move, whereby the coupling mechanism drives the firing pin connected to it to move and thus generates an impact force on the piercing primer.

[0008] The penetrating primer is activated under a specific kinetic energy input to generate flames in order to ignite the compound solid propellant. Therefore, the penetrating primer, connected to the compound solid propellant, is attached to the base of the first casing. The firing pin is then positioned at a specific distance from the penetrating primer such that, if activation is required, its movement brings it to a stop against the penetrating primer. The coupling mechanism connects the firing pin, the spring, and the temperature-sensing glass bulb for fire protection to form a triggering coupling mechanism. The connections of the coupling mechanism to the spring and the temperature-sensing glass bulb for fire protection in the same direction bring the spring into a compressed state.Therefore, when the glass bubble bursts, the spring pressure is released for temperature detection in fire protection, forming a force to drive the coupling mechanism. As a result of the simultaneous connection of the coupling mechanism with the pricking primer, the movement of the coupling mechanism leads to a synchronous movement of the pricking primer, thereby generating an impact force on the pricking primer. This design is the mechanical principle and provisional implementation of the structure of the triggering device described above for ignition.

[0009] Furthermore, the device of the present invention also comprises a second housing and an end cap; the coupling mechanism is a cross-shaped connecting structure formed by a transverse bar and a vertical bar; the firing pin comprises an upper end located near the penetrating primer and a connecting base; one end of the transverse bar is inserted perpendicularly through and attached to the connecting base of the firing pin, and the other end is inserted perpendicularly through the center of the vertical bar and is firmly connected to the vertical bar to form a connecting section; the second housing is configured to connect the vertical bar of the coupling mechanism, the spring, and the glass bulb for temperature sensing for fire protection in the same direction parallel to the direction of the firing pin;One end of the vertical rod, aligned in the same direction as the firing pin, is connected to the fire-resistant temperature sensor, and the other end of the fire-resistant temperature sensor is attached to the second housing; the spring is attached to the other end of the vertical rod, and a through-hole is provided at the other end of the second housing, through which the end cap is securely connected from the outside of the second housing to the vertical rod between the second housing and the connecting section; when the vertical rod of the coupling mechanism, the spring, and the fire-resistant temperature sensor are installed in the second housing, the two ends of the second housing are each connected to the fire-resistant temperature sensor and the end cap, respectively, and the spring is in a compressed state;The height to which the spring is compressed is greater than the predetermined distance between the firing pin and the lower end of the piercing primer.

[0010] It is evident that in this solution the coupling mechanism is further improved and a crosswise connected coupling mechanism is developed, wherein the vertical rod is used to realize the attachment of the spring and connection with the glass bubble for temperature sensing for fire protection in the same direction as described above, and the transverse rod is used to connect with the firing pin and thus to a synchronous movement of the piercing primer and the vertical rod.The core of the embodiment according to the invention is that the end of the vertical rod to which the spring is attached is free of any fixed connection and can move relative to the spring. In a ready-to-assemble glass bubble for temperature sensing in fire protection, the spring is attached in a compressed state between the cross section of the coupling mechanism and the end cap. When the glass bubble for temperature sensing in fire protection bursts, one end of the spring at the end cap cannot release the compressive force because the end cap is fixed relative to the second housing. Therefore, the compressive force can only be released by the movement of the spring towards its end at the cross-shaped connecting section.The spring exerts a thrust force on the cross connection between the crossbar and the vertical bar, which pushes the cross-structured coupling mechanism to the position of the glass bubble for temperature sensing for fire protection, because the movement path and the accuracy coefficient of the spring are sufficient to bring the firing pin, which moves synchronously with the coupling mechanism, to the piercing primer and thus to ignite the piercing primer.

[0011] Furthermore, the spring constant of the spring described above is 2-15 N / mm and the height by which the spring is compressed is 5-20 mm.

[0012] The compressed height, together with the accuracy coefficient of the spring, is sufficient to generate the impact force that ignites the piercing primer.

[0013] Furthermore, the nominal activation temperature of the glass bubble described above for temperature sensing for fire protection is any one of 93°C, 141°C or 182°C.

[0014] Furthermore, the compound solid propellant described above contains an adhesive, a curing agent, an oxidizing agent, and a coolant; the adhesive contains a hydroxyl-terminated polybutadiene and / or a carboxyl-terminated polybutadiene, and the content is 10-40 wt%; the curing agent is a toluene diisocyanate and / or an isophorone diisocyanate, and the content is 0.5-5 wt%; the oxidizing agent is an ammonium perchlorate and / or an ammonium nitrate, and the content is 20-60 wt%; the coolant is an azodicarbonamide and the content is 20 to 60 wt%.

[0015] Furthermore, the base of the housing in which the above-described compound solid propellant is installed is provided with a hole corresponding to the position of the priming cap, so that the flames generated when striking the priming cap come into direct contact with the compound solid propellant and thus ignite the compound solid propellant.

[0016] Furthermore, the end cap described above has the form of a hollow tube, the outside being threaded, the inner diameter of the hollow tube being greater than or equal to the outer diameter of the vertical rod, the outer thread and the inner wall of the through-hole of the second housing fitting together for mutual fixation, and the hollow tube facilitating the movement of the vertical rod within it, so that the spring is compressed or released.

[0017] The length of the vertical rod within the spring is sufficient, and it can even extend through the hollow tube in the center of the end cap out of the second housing. The first reason for this design is that, when the spring is compressed or the pressure is released, the interior can be supported by the vertical rod, ensuring that the spring always moves in a straight line with the shaft of the vertical rod as its center. This prevents deviations in the compressive force that would deflect the direction of movement of the coupling mechanism and the firing pin driven by it, resulting in ineffective ignition of the primer. The second reason is that a through-hole for a pin insert can be provided at the end of the vertical rod as needed, allowing the end of the vertical rod to be protected during transport, assembly, etc.by penetrating the pin outside the end cap, thus preventing the firing pin from striking due to movement of the coupling mechanism caused by accidental breakage of the glass bubble used for temperature sensing for fire protection.

[0018] Furthermore, the types of connection between the crossbar and the vertical bar described above include a threaded connection, welding or gluing.

[0019] The synchronous movement of the fixed connection between the crossbar and the vertical bar is the key to ensuring the synchronous movement of the firing pin and the coupling mechanism, and the connection type is a state-of-the-art connection type.

[0020] Furthermore, the device of the present invention also includes a pin, and the end of the vertical rod of the coupling mechanism is provided with a through-hole perpendicular to the axial direction of the vertical rod, so that the pin and the through-hole fit together to form a tight connection of the vertical rod relative to the end cap.

[0021] This design is intended to achieve the purpose described above: during transport and assembly, etc., the end of the vertical rod is fixed by a pin passing through it outside the end cap, thus preventing the striking bolt from striking due to the movement of the coupling mechanism caused by the accidental breakage of the glass bubble used for temperature sensing in fire protection.

[0022] The present invention has the following advantageous effects compared to the prior art: (1) The principle underlying the device of the present invention is simple, namely, the temperature change at the fire site is detected by the glass bubble for temperature sensing, and when its activation temperature is reached, the ignition of the compound solid propellant is triggered to generate a gas, thereby achieving fire detection and driving the fire extinguishing agent; (2) The device of the present invention has a compact design and the ambient temperature is detected by the glass bubble for temperature sensing for fire protection, and when its threshold temperature is reached the glass bubble for temperature sensing for fire protection begins to burst and the glass bubble is made to burst, and the ignition trigger device connected with the glass bubble is moved together with it, so that the ignition of the compound solid propellant is triggered; (3) The device of the present invention is characterized by its adaptability to a wide range of ambient temperatures, i.e., it has the characteristic that a wide storage temperature range for the glass bubble for temperature sensing for fire protection is possible in an environment where no fire occurs, i.e., the ambient temperature can be between -60 °C and the threshold temperature, whereas among existing temperature sensing devices most fail at a low temperature of -30 °C. (4) The device of the present invention is characterized by its sensitive and rapid response; that is, upon thermal rupture of the glass bubble, the coupling mechanism is immediately activated to ignite the priming primer, thereby igniting the solid propellant and generating the high-pressure gas. Since the components are mechanically connected and coupled to one another, all components of the complete device will immediately move synchronously upon thermal rupture of the glass bubble, independent of the power supply for detection, and the driving force can be supplied from the gas source. Therefore, there is no fault or failure problem and no danger that could be caused by electronic detection or electronic drive in the prior art. (5) The device of the present invention is characterized by high reliability, i.e. the glass bubble for temperature sensing for fire protection bursts only when its activation temperature is reached, which triggers the operation of other relevant devices and thus leads to the ignition of the compound solid propellant.

[0023] The device of the present invention is characterized by its simple principle, compact structure, adaptability to a wide range of ambient temperatures, sensitive response and high reliability, and can be used extensively for fire detection and for driving the extinguishing agent of fire extinguishing systems in the field of fire protection technology.

[0024] The device of the present invention uses a glass bulb for temperature sensing in fire protection systems for fire temperature detection and provides a compound solid propellant as a gas propulsion source stored at atmospheric pressure. When the ambient temperature of the glass bulb reaches the threshold temperature, the glass bulb bursts, and the priming cap is activated by the coupling mechanism to ignite the compound solid propellant, thereby generating the high-pressure gas as the driving force from the gas source. The device of the present invention is characterized by high stability and a wide range of applications and is used for fire detection and for propelling the extinguishing agent of fire extinguishing systems in the field of fire protection technology. DESCRIPTION OF THE DRAWINGS

[0025] These and / or other aspects and advantages of the present invention will become clearer and easier to understand from the following detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, which show: Fig. 1 a schematic representation of the structural design of the device for self-starting a gas source by temperature detection in an embodiment of the present invention; Fig. 2 a schematic overall external view of the device for self-starting a gas source by temperature detection in an embodiment of the present invention after the installation of all components; and Fig. 3 a workflow diagram of the device for self-starting a gas source by temperature detection in an embodiment of the present invention. DETAILED EXECUTION FORMS

[0026] To make the present invention more understandable to those skilled in the art, the present invention is described in more detail below with reference to the accompanying drawings and detailed embodiments. Example 1

[0027] A device for the self-starting of a gas source by temperature detection, the construction of which is in Fig.Figure 1 shows a compound solid propellant 11, a piercing primer 12, a firing pin 13, a spring 14, a coupling mechanism 15 and a glass bulb for temperature sensing for fire protection 16; the compound solid propellant 11 is installed in the first housing and the compound solid propellant 11 is arranged at the bottom of the first housing, and the top of the first housing is provided with an opening to allow the gas generated when the compound solid propellant 11 is ignited to escape;The penetrating primer 12 is arranged at the bottom of the first housing and is in contact with the compound solid propellant 11. Preferably, a hole corresponding to the position of the penetrating primer 12 is provided at the bottom of the housing for the installation of the compound solid propellant 11, so that the flames generated when striking the penetrating primer 12 come into direct contact with the compound solid propellant 11 to be ignited in order to ignite the compound solid propellant 11 in the first housing when the firing pin 13 strikes it. The firing pin 13 is located at the lower end of the penetrating primer 12 and is at a predetermined distance from the lower end of the penetrating primer 12. The firing pin 13 strikes the penetrating primer 12 by a reciprocating motion to cause the penetrating primer 12 to generate flames.The coupling mechanism 15 connects the firing pin 13 and the glass bulb for temperature sensing for fire protection 16 and the spring 14 to each other, and the coupling mechanism 15 in the direction of the connection with the glass bulb for temperature sensing for fire protection 16 causes the spring 14 to form a compressive force, so that the compressive force of the spring 14 is released when the glass bulb for temperature sensing for fire protection 16 bursts due to heat and drives the coupling mechanism 15 to move, whereby the coupling mechanism 15 drives the firing pin 13 connected to it to move and thus generates an impact force on the piercing primer 12.

[0028] To improve the functionality of the device, the preferred design and arrangement of the coupling mechanism 15 and other embodiments and the connection relationship between the components of the present invention are as follows: the device in this embodiment further comprises a second housing and an end cap 17; the coupling mechanism 15 is a cross-shaped connecting structure formed by a transverse bar 151 and a vertical bar 152; the firing pin 13 comprises an upper end located near the piercing primer 12 and a connecting base; one end of the transverse bar 151 is inserted perpendicularly through and attached to the connecting base of the firing pin 13, and the other end is inserted perpendicularly through the center of the vertical bar and is firmly connected to the vertical bar 152 to form a connecting section 153;the second housing is configured to connect the vertical rod 152 of the coupling mechanism 15, the spring 14, and the glass bulb for temperature sensing for fire protection 16 in the same direction parallel to the direction of the firing pin 13; one end of the vertical rod 152 aligned in the same direction as the firing pin 13 is connected to the glass bulb for temperature sensing for fire protection 16, and the other end of the glass bulb for temperature sensing for fire protection 16 is attached to the second housing; the spring 14 is attached to the other end of the vertical rod 152, and a through-hole is provided at the other end of the second housing, with which the end cap 17 is firmly connected from the outside of the second housing for attaching the spring 14 to the vertical rod between the second housing and the connecting section 153;In the installed state of the vertical rod 152 of the coupling mechanism 15, the spring 14 and the glass bulb for temperature sensing for fire protection 16 in the second housing, the two ends of the second housing are each connected to the glass bulb for temperature sensing for fire protection 16 and the end cap 17, and the spring 14 is in a compressed state; the height to which the spring 14 is compressed is greater than the predetermined distance between the firing pin 13 and the lower end of the piercing primer 12.

[0029] To generate a moderate compressive force and an impact force on the piercing primer, the spring constant of the spring 14 is preferably 2-15 N / mm and the height to which the spring is compressed is 5-20 mm; similarly, to improve reliability while reducing ambient temperature sensing interference, the nominal activation temperature of the glass bubble for temperature sensing for fire protection 16 is selected from 93°C, 141°C or 182°C.

[0030] The compound solid propellant 11 installed in the first casing comprises an adhesive, a curing agent, an oxidizing agent and a coolant: the adhesive contains a hydroxyl-terminated polybutadiene and / or a carboxyl-terminated polybutadiene, and the content is 10-40 wt%; the curing agent is a toluene diisocyanate and / or an isophorone diisocyanate, and the content is 0.5-5 wt%; the oxidizing agent is an ammonium perchlorate and / or an ammonium nitrate, and the content is 20-60 wt%; the coolant is an azodicarbonamide and the content is 20 to 60 wt%.

[0031] Preferably, the outside of the hollow tube of the end cap 17, which is connected to one end of the vertical rod 152, is provided with threads, and the inner diameter of the hollow tube is greater than or equal to the outer diameter of the vertical rod in order to secure the vertical rod 152, and the outer thread structure and the inner thread of the second housing match to press the spring 14 inside the housing.

[0032] Preferably, the types of connection between the crossbar 151 and the vertical bar 152 include a threaded connection, welding or gluing.

[0033] In this embodiment, a glass bubble with a nominal activation temperature of 141°C is used for temperature sensing according to international standards. The glass bubble is activated by firing up to 141°C after baking. The free stroke of the firing pin 13 of the device is 9 mm, and the spring constant is 4.9 N / mm. The device has a gas production rate of 500 L / kg (excluding water vapor) at a room temperature of 20°C. The gas produced by the 4g compound solid propellant is conveyed through a 10m long stainless steel pipe with an inner diameter of 4mm to the 25mm diameter piston, which can generate a thrust of approximately 90 N.

[0034] The embodiments described above are merely exemplary and in no way limit the embodiments of the present invention; they can take other forms. Various embodiments of the present invention have been described above, and this description is exemplary, not exhaustive, and does not limit the disclosed embodiments. As would be obvious to a person skilled in the art, numerous modifications and changes can be made without departing from the scope and spirit of the described embodiments. Therefore, the scope of protection of the present invention should be limited to the scope of protection of the claims.

Claims

[1] Device for self-starting a gas source by temperature detection, characterized by , that it comprises a composite solid propellant (11), a triggering device for ignition and a glass bubble for temperature sensing for fire protection (16); the compound solid propellant (11) is installed in a first housing, the compound solid propellant (11) located at the bottom of the first housing is connected to the ignition triggering device so that it is ignited by the ignition triggering device, and the top of the first housing is provided with an opening to allow the gas generated when the compound solid propellant (11) is ignited to escape; the ignition trigger device is connected to the glass bubble for temperature sensing for fire protection (16), so that the glass bubble for temperature sensing for fire protection (16) triggers the ignition of the compound solid propellant (11) when it bursts due to heating; the triggering device for ignition comprises a piercing primer (12), a firing pin (13), a spring (14) and a coupling mechanism (15); the piercing primer (12) is arranged at the bottom of the first casing to ignite the compound solid propellant (11) in the first casing when the firing pin (13) strikes; the firing pin (13) is located at the lower end of the piercing percussion cap (12) and is at a predetermined distance from the lower end of the piercing percussion cap (12), and the firing pin (13) strikes the piercing percussion cap (12) by a reciprocating motion to cause the piercing percussion cap (12) to produce flames; the coupling mechanism (15) connects the firing pin (13) and the glass bulb for temperature sensing for fire protection (16) and the spring (14) together, and the coupling mechanism (15) in the direction of the connection with the glass bulb for temperature sensing for fire protection (16) causes the spring (14) to form a compressive force, so that the compressive force of the spring (14) is released when the glass bulb for temperature sensing for fire protection (16) bursts due to heat and drives the coupling mechanism (15) to move, whereby the coupling mechanism (15) drives the firing pin (13) connected to it to move and thus generates an impact force on the piercing primer (12); further comprising: a second housing and an end cap (17); the coupling mechanism (15) is a cross-shaped connecting structure formed by a transverse bar (151) and a vertical bar (152); the firing pin (13) comprises an upper end located near the piercing primer (12) and a connecting base; one end of the crossbar (151) is guided perpendicularly through the connecting base of the firing pin (13), and the other end is guided perpendicularly through the center of the vertical bar and is firmly connected to the vertical bar (152) to form a connecting section (153); the second housing is configured to connect the vertical rod (152) of the coupling mechanism (15), the spring (14), and the glass bulb for temperature sensing for fire protection (16) in the same direction parallel to the direction of the firing pin (13); one end of the vertical rod (152) aligned in the same direction as the firing pin (13) is connected to the glass bulb for temperature sensing for fire protection (16), and the other end of the glass bulb for temperature sensing for fire protection (16) is attached to the second housing; the spring (14) is attached to the other end of the vertical rod (152), and a through-hole is provided at the other end of the second housing, with which the end cap (17) is firmly connected from the outside of the second housing for attaching the spring (14) to the vertical rod between the second housing and the connecting section (153); In the installed state of the vertical rod (152) of the coupling mechanism (15), the spring (14) and the glass bulb for temperature sensing for fire protection (16) in the second housing, the two ends of the second housing are each connected to the glass bulb for temperature sensing for fire protection (16) and the end cap (17), and the spring (14) is in a compressed state; the height by which the spring (14) is compressed is greater than the predetermined distance between the striking end of the firing pin (13) and the striking end of the piercing primer (12). [2] Device for self-starting a gas source by temperature detection according to claim 1, characterized by , that the spring constant of the spring (14) is 2-15 N / mm and the height by which the spring is compressed is 5-20 mm. [3] Device for self-starting a gas source by temperature detection according to claim 1, characterized by, that the nominal activation temperature of the glass bubble for temperature sensing for fire protection (16) is any one of 93°C, 141°C or 182°C. [4] Device for self-starting a gas source by temperature detection according to claim 1, characterized by , that the compound solid propellant (11) comprises an adhesive, a hardening agent, an oxidizing agent and a coolant; the adhesive contains a hydroxyl-terminated polybutadiene and / or a carboxyl-terminated polybutadiene, and the content is 10 to 40 wt%; the hardening agent is a toluene diisocyanate and / or an isophorone diisocyanate and the content is 0.5 to 5% by mass; the oxidizing agent is an ammonium perchlorate and / or an ammonium nitrate, and the content is 20 to 60% by mass; The coolant is an azodicarbonamide and its content is 20 to 60% by mass. [5] Device for self-starting a gas source by temperature detection according to claim 1, characterized by , that a hole corresponding to the position of the piercing primer (12) is provided on the bottom of the housing for the installation of the compound solid propellant (11), so that the flames generated when striking the piercing primer (12) come into direct contact with the compound solid propellant (11) to be ignited. [6] Device for self-starting a gas source by temperature detection according to claim 1, characterized by, that the end cap (17) has the form of a hollow tube, and the outside is provided with a thread, and the inner diameter of the hollow tube is greater than or equal to the outer diameter of the vertical rod (152) of the coupling mechanism (15), its external thread and the inner wall of the through-hole of the second housing fit together for mutual fixation, and the hollow tube facilitates the movement of the vertical rod (152) in it, so that the spring (14) is compressed or released. [7] Device for self-starting a gas source by temperature detection according to claim 1, characterized by , that the types of connection between the crossbar (151) and the vertical bar (152) include a threaded connection, welding or gluing. [8] Device for self-starting a gas source by temperature detection according to claim 1, characterized by, that it further comprises a pin, and the end of the vertical rod (152) of the coupling mechanism (15) is provided with a through-hole perpendicular to the axial direction of the vertical rod, so that the pin and the through-hole fit together to form a tight connection of the vertical rod (152) relative to the end cap (17).

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