Intelligent Self-Starting Fire Extinguisher

Abstract

The present invention discloses an intelligent self-activating fire extinguisher, which includes a storage box, a medicine storage component, a nozzle arranged at the lower end of the storage box and in pipeline communication with the medicine storage component, and a triggering device. The medicine storage component includes a plurality of medicine spraying bottles, and switch valves are arranged at the bottle mouths of the plurality of medicine spraying bottles. The switch valves on each medicine spraying bottle are movably connected to the triggering device. A plurality of heat-sensitive glass beads are arranged on the triggering device, and a time-delay mechanism is arranged between two adjacent heat-sensitive glass beads. In the present invention, the cooperation of the plurality of medicine spraying bottles, the plurality of heat-sensitive glass beads and the triggering device can automatically start extinguishing the fire according to the indoor fire situation to ensure that the fire is completely extinguished.

Description

Technical Field

[0001] The invention relates to the field of public safety facilities, in particular to an intelligent self-starting fire extinguisher. Background Art

[0002] At present, electrical cabinets in enterprises often catch fire due to high temperature or aging of lines. Therefore, fire extinguishers are generally required to be kept in general distribution cabinets. However, general fire extinguishers require manual operation. In an electrical environment, it is difficult for general personnel to promptly access spare fire extinguishers near the distribution cabinet. Therefore, self-starting fire extinguishers are often installed in general distribution cabinets. At present, perfluorohexanone can absorb a large amount of heat and reduce the temperature of the fire scene because it vaporizes after injection. At the same time, perfluorohexanone reduces the oxygen concentration in the combustion area in the fire scene after vaporization, achieving the effect of suffocation and fire extinguishing. It not only has a good fire extinguishing effect, but also has almost negligible harm to the environment and electrical equipment. It is widely used in self-starting fire extinguishers. However, general self-starting fire extinguishers currently control the start of the fire extinguisher through temperature monitoring and feedback by sensors. When the fire is fierce, the sensor circuit is easily blown, making it difficult to start the fire extinguisher.

[0003] At present, in the existing Chinese patent literature, the application number is: CN201621281466.4, and the name is: A patent document of a suspended gas fire extinguishing device with temperature-sensitive electric dual-start release component, which proposes a suspended gas fire extinguishing device with temperature-sensitive electric dual-start release component, including a joint, the lower end outlet of the joint is connected to a nozzle through a thread, a top screw is provided in the inner thread of the lower end of the nozzle, and a fire-fighting temperature-sensitive glass ball is provided at the upper end of the top screw, and a nozzle plug is provided on the upper surface of the fire-fighting temperature-sensitive glass ball, and the nozzle plug and the nozzle are supported by the temperature-sensitive glass ball to achieve a pressure pad seal;

[0004] The self-starting function of this patent is mainly achieved through the temperature-sensitive glass ball breaking when the ambient temperature reaches the rated temperature, the nozzle plug falling off, the airway being unblocked, and the fire extinguishing agent being sprayed out from the inside of the joint through the nozzle, thereby achieving the effect of releasing the fire extinguishing agent to extinguish the fire, thereby realizing self-starting fire extinguishing without a circuit. However, in this scheme, after the fire extinguishing agent is sprayed, even if the fire is not extinguished or the fire breaks out again, the device cannot extinguish the fire, which poses a great hidden danger. If an excessive dose of fire extinguishing agent is used to ensure complete fire extinguishing, it will cause a great waste of resources. Summary of the invention

[0005] The technical problem to be solved by the present invention is the problem mentioned in the technical background that it is impossible to completely extinguish the fire. A method is proposed that can extinguish the fire multiple times to prevent the problem of the fire not being extinguished or the fire re-starting, and can save resources.

[0006] To solve the above technical problems, an intelligent self-activating fire extinguisher is proposed, which includes a storage box and a nozzle arranged at the lower end of the storage box. It also includes a medicine storage component and a triggering device. The medicine storage component includes multiple medicine spraying bottles, and each bottle mouth of the multiple medicine spraying bottles is provided with a switching valve. The switching valves are all communicated with the nozzle air passage. The triggering device can cooperate with each switching valve in sequence. There are multiple temperature-sensitive glass beads on the triggering device, and the temperature-sensitive glass beads are exposed. A time-delay mechanism is arranged between two adjacent temperature-sensitive glass beads.

[0007] Furthermore, the medicine storage component also includes a medicine bottle mounting seat and a multi-way joint. The medicine bottle mounting seat is provided with a through hole along the axial direction, and the multi-way joint is arranged at the geometric center position of the through hole. The multiple medicine spraying bottles are evenly spaced along the circumferential direction of the through hole on the medicine bottle mounting seat, and the switching valves are located in the through hole and are communicated with the multi-way joint.

[0008] Furthermore, the medicine storage component also includes a medicine bottle mounting seat and a multi-way joint. The medicine bottle mounting seat is provided with a through hole along the axial direction, and the multi-way joint is arranged at the geometric center position of the through hole. The multiple medicine spraying bottles are evenly spaced along the circumferential direction of the through hole on the medicine bottle mounting seat, and the switching valves are located in the through hole and are communicated with the multi-way joint.

[0009] Furthermore, the multi-way joint and the nozzle are communicated through a straight pipe.

[0010] Furthermore, the triggering device also includes a connecting sleeve, a torsion spring, a triggering plate, a triggering piece, a heat insulation cover and a glass bead mounting plate. The connecting sleeve is rotatably arranged at the lower end of the storage box. The torsion spring is sleeved on the connecting sleeve, and one end of the torsion spring is fixedly connected with the inside of the storage box, and the other end is fixedly connected with the connecting sleeve. Both the triggering plate and the glass bead mounting plate are circular plates. The triggering plate is arranged at the upper end of the connecting sleeve, and the triggering plate is provided with a through hole corresponding to the inner hole of the connecting sleeve along the axial direction. The triggering piece is arranged at the upper end of the triggering plate and corresponds to the position of the switching valve. The glass bead mounting plate is arranged at the lower end of the connecting sleeve. The temperature-sensitive glass beads are arranged on the glass bead mounting plate along the circumferential direction. The heat insulation cover is arranged at the lower end outside the storage box and covers the glass bead mounting plate. There is a heat conduction hole corresponding to the position of the temperature-sensitive glass bead on the heat insulation cover. A limiting piece is arranged at the position corresponding to the heat conduction hole inside the heat insulation cover. The limiting piece is in sliding fit with the glass bead mounting plate, and one temperature-sensitive glass bead abuts against the limiting piece.

[0011] Furthermore, a pipe is sleeved inside the connecting sleeve, and the nozzle is located at the lower end of the connecting sleeve.

[0012] Furthermore, the time-delay mechanism includes a limiting airbag and a gas-blocking block. An airbag mounting through groove is arranged at the position between two adjacent temperature-sensitive glass beads on the glass bead mounting plate. The limiting airbag is arranged in the airbag mounting through groove. The inflation port of the limiting airbag passes through the side wall of the airbag mounting through groove close to the temperature-sensitive glass bead. The gas-blocking block is arranged in the inflation port of the limiting airbag and abuts against the temperature-sensitive glass bead.

[0013] The beneficial effects of the present invention compared with the prior art are as follows:

[0014] According to the technical solution of the present invention, by using the provided triggering device in cooperation with the delay mechanism, the fire extinguishing agent can be triggered multiple times, so as to extinguish the fire when the fire breaks out again, and the dosage of the fire extinguishing agent can be accurately controlled according to the duration of the fire situation, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the axial structure view of the present invention;

[0016] Figure 2 It is the internal sectional view of the present invention;

[0017] Figure 3 It is the axial structure view of the medicine storage assembly in the present invention;

[0018] Figure 4 It is the axial structure view of the triggering device and the delay mechanism in the present invention;

[0019] Figure 5 It is the axial structure view of the heat insulation cover 13 in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be described in detail in conjunction with the accompanying Figures 1-5 drawings in the embodiments of the present invention.

[0021] Embodiment 1

[0022] As Figure 1 shown, an intelligent self-activating fire extinguisher includes a storage box 1 and a nozzle 2 provided at the lower end of the storage box. The storage box 1 is circular, and further includes a medicine storage assembly and a triggering device. The medicine storage assembly includes a plurality of medicine spraying bottles 3. Switch valves 4 are provided at the bottle mouths of the plurality of medicine spraying bottles 3, and an adjusting rod 4a is provided on the switch valve 4; the switch valve 4 is a product known in the mechanical field and can be directly purchased. Preferably, a straight-through valve is used;

[0023] The triggering device can cooperate with each switch valve 4 in sequence. When the triggering device moves, it can sequentially toggle the adjusting rod 4a to open the switch valve 4, thereby releasing the perfluorocyclohexanone stored in the medicine spraying bottle 3;

[0024] The triggering device is provided with a plurality of temperature-sensitive glass beads 5, and the temperature-sensitive glass beads 5 are exposed. A delay mechanism is provided between two adjacent temperature-sensitive glass beads 5. After a fire breaks out indoors, the temperature rises sharply, the temperature-sensitive glass beads 5 are heated and broken, the triggering device loses the restriction of the temperature-sensitive glass beads 5, and begins to slowly rotate under the restriction of the delay mechanism. After the medicine in the medicine spraying bottle 3 corresponding to the broken temperature-sensitive glass bead 5 is sprayed out, the triggering device just rotates to the position of the heat conduction hole 13a, so that the temperature-sensitive glass beads 5 are exposed, so as to continue to trigger the next medicine spraying bottle 3 to release perfluorhexanone in case of still having a fire or the fire reigniting.

[0025] The medicine storage assembly further includes a medicine bottle mounting seat 6 and a multi-way joint 7. The medicine bottle mounting seat 6 is provided with a through hole 6a along the axial direction. The multi-way joint 7 is arranged at the geometric center position of the through hole 6a through a plurality of support rods 16. A plurality of medicine spraying bottles 3 are evenly spaced along the circumferential direction of the through hole 6a on the medicine bottle mounting seat 6, and the switching valve 4 is located in the through hole 6a. The switching valve 4 is communicated with the multi-way joint 7. When the adjusting rod 4a rotates, the switching valve 4 is opened. The high-pressure gas in the medicine spraying bottle 3 carries perfluorhexanone and first enters the multi-way joint 7, then is transported to the nozzle 2 through the straight pipe 8, and then is sprayed out by the nozzle 2.

[0026] The multi-way joint 7 is communicated with the nozzle 2 through a straight pipe 8. The straight pipe 8 is made of a hard heat-resistant material. Both the multi-way joint 7 and the nozzle 2 are threadedly connected to the straight pipe 8.

[0027] The triggering device further includes a connecting sleeve 9, a torsion spring 10, a triggering plate 11, a triggering piece 12, a heat insulation cover 13 and a glass bead mounting plate 14;

[0028] An installation boss 1a is provided at the lower end inside the storage box 1. A circular rotating groove 1b and a spring groove 1c are sequentially formed downward at the upper end of the installation boss 1a. A circular rotating plate 17 is provided in the middle section of the connecting sleeve 9. The rotating plate 17 is rotatably arranged in the rotating groove 1b, and a gland 18 is sleeved on the connecting sleeve 9. The gland 18 restricts the axial sliding of the connecting sleeve 9. The torsion spring 10 is sleeved on the connecting sleeve 9, and the torsion spring 10 is located in the spring groove 1c. One end of the torsion spring 10 is fixedly connected to the inner side wall of the spring groove 1c, and the other end is fixedly connected to the outer wall of the connecting sleeve 9. Then the connecting sleeve 9 can rotate under the elastic force of the torsion spring 10;

[0029] Both the triggering plate 11 and the glass bead mounting plate 14 are circular plates. The triggering plate 11 is arranged at the upper end of the connecting sleeve 9, and the triggering plate 11 is provided with a through hole corresponding to the inner hole of the connecting sleeve 9 along the axial direction. The triggering piece 12 is arranged at the upper end of the triggering plate 11 and corresponding to the position of the switching valve 4. When the connecting sleeve 9 rotates, the triggering plate 11 rotates synchronously, driving the triggering piece 12 to rotate. When the triggering piece 12 rotates, it toggles the adjusting rod 4a, thereby opening the switching valve 4;

[0030] The glass bead mounting plate 14 is arranged at the lower end of the connecting sleeve 9. A connecting sleeve 19 is provided at the geometric center position of the glass bead mounting plate 14. The connecting sleeve 19 is sleeved on the lower end of the connecting sleeve 9 and rotates synchronously with the connecting sleeve 9. The heat-sensitive glass beads 5 are arranged on the glass bead mounting plate 14 along the circumferential direction. The heat insulation cover 13 is arranged at the outer lower end of the storage box 1, and the heat insulation cover 13 covers the glass bead mounting plate 14. A heat conduction hole 13a is provided on the heat insulation cover 13 corresponding to the position of the heat-sensitive glass bead 5. A limiting piece 15 is arranged inside the heat insulation cover 13 corresponding to the position of the heat conduction hole 13a. The limiting piece 15 is in sliding fit with the glass bead mounting plate 14. A heat-sensitive glass bead 5 abuts against the limiting piece 15, thereby restricting the rotation of the glass bead mounting plate 14. Then the rotation of the connecting sleeve 9 is restricted. When the heat-sensitive glass bead 5 bursts due to heat, the glass bead mounting plate 14 loses the restriction, and the connecting sleeve 9 loses the restriction. Then the connecting sleeve 9 can rotate under the elastic force of the torsion spring 10, and the glass bead mounting plate 14 rotates synchronously.

[0031] The straight pipe 8 is sleeved inside the connecting sleeve 9, and the nozzle 2 is located at the lower end of the connecting sleeve 9.

[0032] The delay mechanism includes a limiting airbag 20 and a gas-blocking block. An airbag installation through groove 14a is provided on the glass bead mounting plate 14 at the position between two adjacent heat-sensitive glass beads 5. The limiting airbag 20 is arranged in the airbag installation through groove 14a. The inflation port of the limiting airbag 20 passes through the side wall of the airbag installation through groove 14a close to the heat-sensitive glass bead 5. The gas-blocking block is arranged in the inflation port of the limiting airbag 20 and abuts against the heat-sensitive glass bead 5. After the heat-sensitive glass bead 5 bursts due to heat, the gas-blocking block loses the restriction of the heat-sensitive glass bead 5 and is ejected from the inflation port of the limiting airbag 20 by the gas in the limiting airbag 20. The inflation port of the limiting airbag 20 slowly deflates. At the same time, the glass bead mounting plate 14 rotates, so that the limiting airbag 20 quickly abuts against the limiting piece 15. After the limiting airbag 20 deflates for a period of time, the internal air pressure decreases, and the limiting piece 15 can flatten the limiting airbag 20. Another heat-sensitive glass bead 5 on the glass bead mounting plate 14 rotates to correspond to the heat conduction hole 13a. At this time, the perfluorhexanone stored in the currently working spray bottle 3 is released;

[0033] If there is still a fire, or the fire breaks out again, the heat-sensitive glass bead 5 that rotates to the heat conduction hole 13a heats up and bursts, repeating the above fire extinguishing process until the fire is extinguished. During the fire extinguishing process, according to the duration of the fire, the corresponding amount of perfluorhexanone fire extinguishing agent is automatically activated, saving costs;

[0034] If the fire has been extinguished, the heat-sensitive glass bead 5 that newly rotates to the heat conduction hole 13a is used as a spare for activation in case of a fire next time.

[0035] The implementation process of the present invention is as follows: the storage box 1 is fixed on the top of the flammable place. After the fire breaks out indoors, the temperature rises sharply, the temperature-sensitive glass beads 5 are shattered by heat, the glass bead mounting plate 14 loses its restriction and can rotate freely, then the connecting sleeve 9 loses its restriction and rotates under the elastic force of the torsion spring 10. When the connecting sleeve 9 rotates, the trigger plate 11 rotates synchronously, driving the trigger plate 12 to rotate. When the trigger plate 12 rotates, the adjusting rod 4a is toggled to open the switch valve 4. The high-pressure gas in the spray bottle 3 carries the perfluorohexanone and first enters the multi-way joint 7, and then is transported to the nozzle 2 through the straight pipe 8, and then is sprayed out by the nozzle 2 to extinguish the fire.

[0036] The air blocking block loses the restriction of the temperature-sensitive glass bead 5, and the gas in the limited airbag 20 rushes out of the inflation port of the limited airbag 20, and the inflation port of the limited airbag 20 slowly deflates. At the same time, the glass bead mounting plate 14 rotates, so that the limited airbag 20 quickly abuts against the limiting sheet 15. After the limited airbag 20 deflates for a period of time, the internal air pressure decreases, and the limiting sheet 15 can flatten the limited airbag 20. Another temperature-sensitive glass bead 5 on the glass bead mounting plate 14 rotates to correspond to the heat-conducting hole 13a.

[0037] If there is still fire and the fire ignites again, the temperature-sensitive glass beads 5 rotated to the heat-conducting holes 13a will heat up and burst, and the above-mentioned fire extinguishing process will be repeated.

[0038] The above embodiments are only for illustrating the technical idea of the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. An intelligent self-activating fire extinguisher, comprising a storage box (1) and a nozzle (2) provided at the lower end of the storage box, characterized in that: It further includes a medicine storage component and a triggering device. The medicine storage component includes a plurality of medicine spraying bottles (3). Switch valves (4) are provided at the bottle mouths of the plurality of medicine spraying bottles (3). The switch valves (4) are in airway communication with the nozzle (2). The triggering device can cooperate with each switch valve (4) in sequence. A plurality of temperature-sensitive glass beads (5) are provided on the triggering device. The temperature-sensitive glass beads (5) are exposed. A delay mechanism is provided between two adjacent temperature-sensitive glass beads (5). The triggering device further includes a connecting sleeve (9), a torsion spring (10), a trigger plate (11), a trigger piece (12), a heat insulation cover (13) and a glass bead mounting plate (14). The connecting sleeve (9) is rotatably arranged at the lower end of the storage box (1). The torsion spring (10) is sleeved on the connecting sleeve (9). One end of the torsion spring (10) is fixedly connected to the inside of the storage box (1), and the other end is fixedly connected to the connecting sleeve (9). Both the trigger plate (11) and the glass bead mounting plate (14) are circular plates. The trigger plate (11) is arranged at the upper end of the connecting sleeve (9), and the trigger plate (11) is axially provided with a through hole corresponding to the inner hole of the connecting sleeve (9). The trigger piece (12) is arranged at the upper end of the trigger plate (11) and corresponds to the position of the switch valve (4). The glass bead mounting plate (14) is arranged at the lower end of the connecting sleeve (9). The temperature-sensitive glass beads (5) are arranged on the glass bead mounting plate (14) along the circumferential direction. The heat insulation cover (13) is arranged at the outer lower end of the storage box (1), and the heat insulation cover (13) covers the glass bead mounting plate (14). A heat conduction hole (13a) is provided on the heat insulation cover (13). A limiting piece (15) is arranged inside the heat insulation cover (13) corresponding to the position of the heat conduction hole (13a). The limiting piece (15) is in sliding fit with the glass bead mounting plate (14). One temperature-sensitive glass bead (5) abuts against the limiting piece (15).

2. The intelligent self-activating fire extinguisher according to claim 1, characterized in that: The medicine storage component further includes a medicine bottle mounting seat (6) and a multi-way joint (7). The medicine bottle mounting seat (6) is axially provided with a through hole (6a). The multi-way joint (7) is arranged at the geometric center position of the through hole (6a). A plurality of medicine spraying bottles (3) are evenly spaced along the circumferential direction of the through hole (6a) on the medicine bottle mounting seat (6). The switch valve (4) is located in the through hole (6a), and the switch valve (4) is in communication with the multi-way joint (7).

3. The intelligent self-activating fire extinguisher according to claim 2, characterized in that: The multi-way joint (7) is communicated with the nozzle (2) through a straight pipe (8).

4. The intelligent self-starting fire extinguisher according to claim 3, wherein: The straight pipe (8) is sleeved inside the connecting sleeve (9), and the nozzle (2) is located at the lower end of the connecting sleeve (9).

5. The intelligent self-activating fire extinguisher according to claim 1, characterized in that: The delay mechanism includes a limiting airbag (20) and an air-blocking block. An airbag mounting through groove (14a) is provided on the glass bead mounting plate (14) at the position between two adjacent temperature-sensitive glass beads (5). The limiting airbag (20) is arranged in the airbag mounting through groove (14a). The inflation port of the limiting airbag (20) passes through the side wall of the airbag mounting through groove (14a) close to the temperature-sensitive glass bead (5). The air-blocking block is arranged in the inflation port of the limiting airbag (20) and abuts against the temperature-sensitive glass bead (5).

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