High-precision fire-fighting smoke detection alarm

Abstract

The utility model discloses a high-precision fire-fighting smoke detection alarm, and relates to the technical field of fire-fighting equipment, the high-precision fire-fighting smoke detection alarm comprises an integration box, a fixed flange and an induction box, the fixed flange is fixedly connected to the top of the integration box, the induction box is fixedly connected to the bottom of the integration box, and a single-chip microcomputer and a buzzer are integrated in the integration box; a detection structure for detecting smoke is arranged between the integration box and the induction box, infrared rays emitted by the infrared ray emitting head can be captured by the infrared ray receiving head, and the infrared rays can be interfered and absorbed by the smoke in the transmission process, so that the smoke can partially block transmission of the infrared rays, and meanwhile, the smoke can be prevented from entering the induction box. When the smoke is emitted, small particles in the smoke scatter, absorb or reflect infrared radiation, so that the transmission capacity of infrared rays is weakened, the more smoke particles are, the more serious the scattering degree of light rays is, the weaker the light intensity received by the infrared receiving head is, and thus the buzzer in the integrated box is triggered to give an alarm.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a high-precision smoke detection alarm for fire-fighting. Background Art

[0002] Smoke detection alarms are widely used in homes, commercial buildings, industrial sites and other places. They are one of the important devices to protect people’s lives and property. They can detect fire hazards in a timely manner, improve the speed and accuracy of fire alarms, and provide important support for the prevention and handling of fire accidents.

[0003] For example, the smoke alarm detection device with publication number CN220271983U relates to the technical field of smoke alarms. The application includes a shell, a positioning plate is arranged on the upper end of the shell, a cover plate is arranged on the upper end of the positioning plate, a circuit board is arranged inside the shell, a concentration sensor is arranged on the lower end face of the circuit board, a controller and a buzzer are arranged on the left and below the concentration sensor respectively, and a network transmission module is arranged on the upper end face of the circuit board. Through the arrangement of the utility model, the utility model can first fix the cover plate, and then fix or replace the shell through the positioning plate and the positioning shell, which is convenient for disassembly and replacement of the smoke alarm, and also separates the concentration sensor and the ion chamber to avoid long-term exposure of the concentration sensor to the air, thereby improving the practicality of the utility model.

[0004] The smoke alarm detection devices in the above-mentioned comparative documents generally have their installation structures optimized. Under current technical conditions, smoke detection alarms mainly realize smoke detection functions through the synergistic effect of light-emitting diodes and photosensitive diodes. However, the performance of such alarms is relatively simple. Once the fire smoke cannot enter the interior of the device, the alarm will not be able to perform its due performance. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision smoke detection alarm for fire fighting, so as to solve the problem that the smoke detection function in the above-mentioned background technology is relatively single in performance and the alarm cannot play its due role once the fire smoke cannot enter the interior of the device.

[0006] To achieve the above object, the utility model provides the following technical solutions: a high-precision smoke detection alarm for fire fighting, comprising an integrated box, a fixed flange, and a sensor box, wherein the fixed flange is fixedly connected to the top of the integrated box, the sensor box is fixedly connected to the bottom of the integrated box, and a single-chip microcomputer and a buzzer are integrated inside the integrated box;

[0007] A detection structure for detecting smoke is arranged between the integrated box and the sensing box, the detection structure is provided with an infrared emitting head, and the infrared emitting head is provided with four centrally symmetrically fixedly connected to the bottom of the integrated box, the bottom of the sensing box is fixedly connected with an infrared receiving head, and the infrared receiving head is provided with four centrally symmetrically fixedly connected to the bottom of the sensing box, and four windows are arranged on the outside of the sensing box, and the four windows correspond to the four sensing boxes and the infrared emitting heads respectively;

[0008] A water spray structure for fire extinguishing is arranged in the middle of the integrated box.

[0009] Preferably, a support frame is fixedly connected to the bottom of the induction box, and four ventilation holes distributed symmetrically with the center are arranged at the bottom of the induction box.

[0010] Preferably, the water spray structure is provided with a water pipe, and a fixing ring is fixedly connected to the outside of the water pipe, a fan is rotatably connected to the outside of the water pipe, and a gear ring is fixedly connected to the top of the fan.

[0011] Preferably, the water pipe is located in the middle of the integrated box, the induction box and the support frame, and the fan is located between the fixing ring and the induction box.

[0012] Preferably, a motor is fixedly connected to an eccentric portion of the bottom of the induction box, and a gear is fixedly connected to an output end of the motor, and the outer side of the gear is meshed with a gear ring.

[0013] Preferably, a guide groove is provided inside the water pipe, and the guide groove has a conical structure, temperature sensors are fixedly connected to both sides of the lower end of the water pipe, and a fixing frame is fixedly connected to the bottom of the water pipe.

[0014] Preferably, a diverter plate is fixedly connected to the bottom of the fixing frame, and a glass ball is snap-connected between the diverter plate and the bottom of the water pipe, and the glass ball is located inside the fixing frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The high-precision smoke detection alarm for fire fighting is provided with a detection structure. The infrared rays emitted by the infrared transmitting head will be captured by the infrared receiving head. During the transmission process, the infrared rays will be interfered and absorbed by the smoke, so the smoke can partially block the transmission of the infrared rays. At the same time, the tiny particles in the smoke will scatter, absorb or reflect the infrared radiation, thereby weakening the transmission capacity of the infrared rays. The more smoke particles there are, the more serious the degree of light scattering is, and the weaker the light intensity received by the infrared receiving head is, thereby triggering the buzzer inside the integrated box to sound an alarm.

[0017] Furthermore, a temperature sensor is provided, and the fan can draw external gas into the device. If smoke is drawn in, the light intensity received by the infrared receiving head is weakened, triggering the buzzer inside the integrated box to sound an alarm. If smoke cannot be drawn in, the fan draws the hot air at the fire scene into the induction box through the window of the rear induction box, and discharges the hot air to the bottom of the support frame through the ventilation holes and the support frame to heat the glass ball, thereby driving the glass ball to break, causing the water spray structure to work, reducing the temperature at the scene, and moistening potential combustibles to prevent the spread of fire.

[0018] Furthermore, a water spray structure is provided, and the guide groove inside the water pipe is designed as a conical structure that is wide at the top and narrow at the bottom, so that when water flows through the guide groove, the water flow speed increases accordingly due to the reduction in space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the bottom structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the explosion structure of the integrated box of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the integrated box of the utility model;

[0023] Figure 5 This is a schematic diagram of the explosion structure of the water pipe of the utility model;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the water delivery pipe of the utility model.

[0025] In the figure: 1. integrated box; 2. fixing flange; 3. induction box; 4. infrared transmitter; 5. infrared receiver; 6. support frame; 7. ventilation hole; 8. water pipe; 9. fixing ring; 10. fan; 11. gear ring; 12. motor; 13. guide groove; 14. temperature sensor; 15. fixing frame; 16. diverter plate; 17. glass ball. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In a further preferred embodiment of the present invention, Figure 1 - Figure 4 As shown, it includes an integrated box 1, a fixed flange 2, and a sensing box 3. The fixed flange 2 is fixedly connected to the top of the integrated box 1, and the sensing box 3 is fixedly connected to the bottom of the integrated box 1. A single-chip microcomputer and a buzzer are integrated inside the integrated box 1; a detection structure for detecting smoke is arranged between the integrated box 1 and the sensing box 3, and the detection structure is provided with an infrared transmitter 4, and the infrared transmitter 4 is provided with four centrally symmetrically fixedly connected to the bottom of the integrated box 1, and an infrared receiving head 5 is fixedly connected to the bottom of the sensing box 3, and the infrared receiving head 5 is provided with four centrally symmetrically fixedly connected to the bottom of the sensing box 3, and four windows are arranged on the outside of the sensing box 3, and the four windows correspond to the four sensing boxes 3 and the infrared transmitter 4 respectively; a water spray structure for fire extinguishing is arranged in the middle of the integrated box 1, a support frame 6 is fixedly connected to the bottom of the sensing box 3, and four centrally symmetrically distributed ventilation holes 7 are arranged at the bottom of the sensing box 3;

[0028] The infrared rays emitted by the infrared transmitting head 4 will be captured by the infrared receiving head 5. During the transmission process, the infrared rays will be disturbed and absorbed by the smoke, so the smoke can partially block the propagation of the infrared rays. At the same time, the tiny particles in the smoke will scatter, absorb or reflect infrared radiation, thereby weakening the transmission capacity of the infrared rays. The more smoke particles there are, the more serious the degree of scattering of the light, and the weaker the light intensity received by the infrared receiving head 5, thereby triggering the buzzer inside the integrated box 1 to sound an alarm.

[0029] In a further preferred embodiment of the present invention, Figure 4 - Figure 5 As shown, the water spray structure is provided with a water pipe 8, and a fixing ring 9 is fixedly connected to the outside of the water pipe 8, a fan 10 is rotatably connected to the outside of the water pipe 8, and a gear ring 11 is fixedly connected to the top of the fan 10, the water pipe 8 is located in the middle of the integrated box 1, the induction box 3, and the support frame 6, and the fan 10 is located between the fixing ring 9 and the induction box 3;

[0030] The ambient temperature is monitored by means of a temperature sensor 14, which transmits temperature data to the single chip microcomputer inside the integrated box 1. When the fire causes the temperature to be too high, the temperature sensor 14 drives the motor 12 to rotate through the single chip microcomputer, thereby driving the gear ring 11 to rotate, so that the gear ring 11 drives the fan 10 to rotate. In this way, the fan 10 can inhale external gas into the device. If smoke is inhaled, the light intensity received by the infrared receiving head 5 is weakened, triggering the buzzer inside the integrated box 1 to sound an alarm. If smoke cannot be inhaled, the fan 10 inhales the hot air at the fire scene into the induction box 3 through the open window of the rear induction box 3, and discharges the hot air through the ventilation holes 7 and the support frame 6 to the bottom of the support frame 6 to heat the glass ball 17, thereby driving the glass ball 17 to break, allowing the water spray structure to work, reducing the temperature at the scene, and moistening potential combustibles to prevent the spread of fire.

[0031] In a further preferred embodiment of the present invention, Figure 6 As shown, a motor 12 is fixedly connected to the eccentric part of the bottom of the induction box 3, and a gear is fixedly connected to the output end of the motor 12, and the outer side of the gear is meshed with the gear ring 11, a guide groove 13 is arranged inside the water pipe 8, and the guide groove 13 is a conical structure, temperature sensors 14 are fixedly connected to both sides of the lower end of the water pipe 8, and a fixing frame 15 is fixedly connected to the bottom of the water pipe 8, a diverter plate 16 is fixedly connected to the bottom of the fixing frame 15, and a glass ball 17 is snap-connected between the diverter plate 16 and the bottom of the water pipe 8, and the glass ball 17 is located inside the fixing frame 15;

[0032] When the glass ball 17 is broken due to heat, water will enter the guide groove 13 through the top of the water pipe 8, and then be sprayed through the diverter plate 16. The guide groove 13 inside the water pipe 8 is designed as a conical structure that is wide at the top and narrow at the bottom, so that when water flows through the guide groove 13, the water flow speed increases accordingly due to the reduction in space.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-precision smoke detection alarm for fire fighting, comprising an integrated box (1), a fixed flange (2), and a sensor box (3), wherein the fixed flange (2) is fixedly connected to the top of the integrated box (1), the sensor box (3) is fixedly connected to the bottom of the integrated box (1), and a single-chip microcomputer and a buzzer are integrated inside the integrated box (1); Features: A detection structure for detecting smoke is arranged between the integrated box (1) and the sensing box (3), the detection structure is provided with an infrared emitting head (4), and the infrared emitting head (4) is provided with four centrally symmetrically fixedly connected to the bottom of the integrated box (1), the bottom of the sensing box (3) is fixedly connected with an infrared receiving head (5), and the infrared receiving head (5) is provided with four centrally symmetrically fixedly connected to the bottom of the sensing box (3), and four windows are arranged on the outside of the sensing box (3), and the four windows correspond to the four sensing boxes (3) and the infrared emitting head (4) respectively; A fire-fighting water spraying structure is arranged in the middle of the integrated box (1).

2. A high-precision fire-fighting smoke detection alarm according to claim 1, characterized in that: The bottom of the induction box (3) is fixedly connected to a support frame (6), and the bottom of the induction box (3) is provided with four ventilation holes (7) distributed in a centrally symmetrical manner.

3. A high-precision fire-fighting smoke detection alarm according to claim 2, characterized in that: The water spray structure is provided with a water pipe (8), and a fixing ring (9) is fixedly connected to the outside of the water pipe (8), a fan (10) is rotatably connected to the outside of the water pipe (8), and a gear ring (11) is fixedly connected to the top of the fan (10).

4. A high-precision fire-fighting smoke detection alarm according to claim 3, characterized in that: The water delivery pipe (8) is located in the middle of the integrated box (1), the induction box (3) and the support frame (6), and the fan (10) is located between the fixing ring (9) and the induction box (3).

5. A high-precision fire-fighting smoke detection alarm according to claim 4, characterized in that: A motor (12) is fixedly connected to an eccentric portion of the bottom of the induction box (3), and a gear is fixedly connected to an output end of the motor (12), and the outer side of the gear is meshed with the gear ring (11).

6. A high-precision fire-fighting smoke detection alarm according to claim 5, characterized in that: A guide groove (13) is provided inside the water delivery pipe (8), and the guide groove (13) is in a conical structure. Temperature sensors (14) are fixedly connected to both sides of the lower end of the water delivery pipe (8), and a fixing frame (15) is fixedly connected to the bottom of the water delivery pipe (8).

7. A high-precision fire-fighting smoke detection alarm according to claim 6, characterized in that: The bottom of the fixed frame (15) is fixedly connected with a diverter plate (16), and a glass ball (17) is snap-fitted and connected between the diverter plate (16) and the bottom of the water pipe (8), and the glass ball (17) is located inside the fixed frame (15).

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