A composite alarm

Abstract

The present invention discloses a composite alarm, including a main shell and a cover plate, wherein the main shell and the cover plate are snap-jointed, the cover plate is symmetrically provided with indicator light strips and air inlets on both sides of the window, the microcontroller is electrically connected with a color screen, the microcontroller is electrically connected to a CC2530 chip and a WIFI module respectively, the high-frequency power switch is electrically connected to a voltage regulator, the voltage regulator is electrically connected to a smoke detection sensor and a gas detection sensor respectively, the smoke detection sensor and the gas detection sensor are both electrically connected to the microcontroller, and the microcontroller is electrically connected to a voice module. The present invention provides a composite alarm, which can detect smoke and gas at the same time, has a perfect dustproof and waterproof effect, and can remove dust from the air inlet without removing the cover plate, and can understand whether the water-absorbing resin desiccant is invalid, is easy to use, and is very worthy of promotion.

Description

Technical Field

[0001] The present invention relates to the technical field of alarms, in particular to a composite alarm. Background Art

[0002] In the prior art, there is a three-in-one indoor sensor for smoke, combustible gas concentration and temperature with application number "201821104756.0", which includes a box body, a connecting column is provided on one side of the top of the box body, a groove is provided on the top of the connecting column, and the two sides of the inner wall of the groove are rotatably connected to two rotating shafts respectively, and the two rotating shafts are respectively provided at the bottom on both sides of the wireless transceiver, and the middle part of the top of the box body is fixedly connected to the middle part of the bottom end of the connecting plate through a hollow column, and a plurality of ventilation holes are provided on the outer wall of the hollow column. The three-in-one indoor sensor for smoke, combustible gas concentration and temperature has greatly expanded the adaptability of the detector by having the three functions of detecting smoke, detecting combustible gas concentration and ambient temperature at the same time, and is more suitable for use in homes, hotels and other places; through the provided annular alarm light, when the three-in-one indoor sensor for smoke, combustible gas concentration and temperature detects the characteristics of a fire, the PLC controller controls the annular alarm light to alarm.

[0003] However, there are still some obvious defects in its use: 1. The above-mentioned device lacks a dustproof device. After long-term use, the smoke sensor and the combustible gas concentration sensor will have their detection accuracy greatly reduced because the air inlet is blocked by dust. Therefore, the service life of the sensors in the above-mentioned device is extremely limited and the detection accuracy is not high; 2. The sensor is used in different environments and needs to be strictly prevented from entering water or being affected by moisture, otherwise it will cause the sensor to fail. The above-mentioned device lacks a water-absorbing and moisture-proof structure, which makes the sensor prone to failure and damage when used in a high-humidity environment. Summary of the invention

[0004] The object of the present invention is to provide a composite alarm to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A composite alarm comprises a main shell and a cover plate, wherein the main shell and the cover plate are snap-jointed, a window is provided on the cover plate, and indicator light strips and air inlets are symmetrically arranged on both sides of the window, a plug is provided on the back of the main shell, and the plug is electrically connected to a high-frequency power switch, and the high-frequency power switch is arranged on the main shell, and a linear voltage regulator is electrically connected to the high-frequency power switch, and the linear voltage regulator is arranged in the inner cavity of the main shell, and a microcontroller is electrically connected to the linear voltage regulator, and a color screen is electrically connected to the microcontroller, and the color screen Corresponding to the window setting on the cover plate, the microcontroller is electrically connected to the CC2530 chip and the WIFI module respectively, the CC2530 chip is provided with an antenna, the high-frequency power switch is electrically connected to the voltage regulator, the voltage regulator is electrically connected to the LED component, the LED component is electrically connected to the microcontroller, the voltage regulator is electrically connected to the smoke detection sensor and the gas detection sensor respectively, the smoke detection sensor and the gas detection sensor are electrically connected to the microcontroller, the microcontroller is electrically connected to the voice module, and the voice module is provided with a speaker.

[0007] Preferably, the linear regulator is an AMS-.V model, the microcontroller is an STMF model, the color screen is a .-inch TFT color screen, the WIFI module is a USR-C model, the voltage regulator is an MV model, the smoke detection sensor is an MP- model, the gas detection sensor is an MP- model, and the voice module includes AP and APB voice chips.

[0008] Preferably, a card slot is opened in the side wall of the main shell, and the main shell is provided with a first protrusion in the card slot, the first protrusion and the main shell are integrally formed, a card plate is provided on the cover plate, and a second protrusion is provided on the card plate, the cover plate, the card plate and the second protrusion are integrally formed, and the card plate and the first protrusion on the main shell are interlocked and buckled with each other through the second protrusion.

[0009] Preferably, micro cylinders are symmetrically fixedly arranged on the top wall of the inner cavity of the cover plate, a mounting plate is fixedly arranged on the output end of the micro cylinder, and a plurality of brushes are arranged on one side of the mounting plate close to the air inlet.

[0010] Preferably, a mounting groove is provided on the side of the mounting plate away from the micro cylinder, a button is provided on the top wall of the mounting groove, the button is wirelessly connected to the microcontroller, a spring is provided in the mounting groove, the spring is connected to the trigger block, the trigger block is fixed to the pressure plate, Velcro hook surfaces are symmetrically provided on both sides of the cover plate, a net bag filled with water-absorbent resin is provided above the Velcro hook surface, a Velcro fur surface is provided on the bottom surface of the net bag filled with water-absorbent resin, the Velcro hook surface and the Velcro fur surface are adhered to each other, and the net bag filled with water-absorbent resin is provided below the pressure plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention is provided with a WIFI module, which has a wireless connection function. Compared with the traditional wired alarm, its wiring is more concise, beautiful, and easy to install and use;

[0013] 2. The present invention is provided with a dustproof device. When the air inlet is blocked by dust due to long-term use of the alarm, the dust can be removed by using a micro cylinder and a brush. Therefore, electric cleaning can be performed without opening the alarm cover. It is easy to use and can keep the air inlet unobstructed, thus ensuring the detection accuracy of the sensor.

[0014] 3. The present invention is provided with a detachable mesh bag containing water-absorbing resin, which can prevent the electrical components inside the alarm from being infiltrated with water or damp, thereby preventing the alarm from failing and effectively extending the service life of the device;

[0015] 4. During cleaning and dust removal operations, if the water-absorbent resin in the mesh bag expands due to absorbing more water, the descending pressure plate will be blocked by the expanded water-absorbent resin and the button will be triggered. Then the microcontroller will display information on the color screen, indicating that the water-absorbent resin in the mesh bag has expanded and failed due to excessive water absorption and needs to be replaced. This allows users to promptly understand whether the water-absorbent resin desiccant has failed without opening the cover of the alarm and replace it as soon as possible.

[0016] The present invention provides a composite alarm which can detect smoke and gas at the same time, has perfect dustproof and waterproof effects, can remove dust from the air inlet without removing the cover plate, and can understand whether the water-absorbing resin desiccant is invalid. It is easy to use and is very worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the appearance structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the electrical connection relationship of the present invention;

[0019] Figure 3It is a cross-sectional schematic diagram of the installation position of the brush and the net bag containing the water-absorbing resin of the present invention;

[0020] Figure 4 For the present invention Figure 3 A in the enlarged view;

[0021] Figure 5 It is a cross-sectional schematic diagram of the installation position of the micro cylinder and the net bag containing the water-absorbing resin of the present invention;

[0022] Figure 6 For the present invention Figure 5 A magnified view of point B;

[0023] Figure 7 It is a schematic diagram of the maximum elongation state of the micro-cylinder of the present invention (before the water-absorbing resin in the mesh bag absorbs water);

[0024] Figure 8 It is a schematic diagram of the maximum elongation state of the micro cylinder of the present invention (after the water-absorbing resin in the mesh bag absorbs water).

[0025] In the figure: 1 main shell, 101 card slot, 102 first protrusion, 2 cover plate, 201 card plate, 202 second protrusion, 3 window, 4 indicator light strip, 5 air inlet, 6 plug, 7 high frequency power switch, 8 linear regulator, 9 microcontroller, 10 color screen, 11 CC2530 chip, 12 antenna, 13 WIFI module, 14 voltage regulator, 15 LED component, 16 smoke detection sensor, 17 gas detection sensor, 18 voice module, 19 speaker, 20 micro cylinder, 21 mounting plate, 22 brush, 23 mounting slot, 24 button, 25 spring, 26 trigger block, 27 pressure plate, 28 Velcro hook surface, 29 mesh bag filled with absorbent resin, 30 Velcro fur surface. DETAILED DESCRIPTION

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

[0027] See also Figure 1-8 , the present invention provides a technical solution:

[0028] A composite alarm includes a main shell 1 and a cover plate 2. The main shell 1 and the cover plate 2 are snap-jointed. The cover plate 2 can be removed for maintenance and replacement of parts. A window 3 is provided on the cover plate 2. The cover plate 2 is symmetrically provided with an indicator light strip 4 and an air inlet 5 on both sides of the window 3. The indicator light strip 4 is electrically connected to a microcontroller 9. When the gas concentration or smoke concentration in the on-site environment is greater than or equal to a set threshold, the indicator light strip 4 will light up and flash for early warning. The air inlet 5 is provided to facilitate the smoke detection sensor 16 and the gas detection sensor 17 to detect the smoke concentration and gas concentration in the air. Therefore, the sensor probe can be arranged close to the air inlet 5. A plug 6 is provided on the back of the main shell 1 for drawing electricity. The plug 6 is electrically connected to a high-frequency power switch 7. The high-frequency power switch 7 is provided on the main shell 1. A linear regulator 8 is electrically connected to the high-frequency power switch 7. The linear regulator 8 is provided in the inner cavity of the main shell 1. The linear regulator 8 is electrically connected to the microcontroller 9. The microcontroller 9 is electrically A color screen 10 is connected and provided for displaying relevant information. The color screen 10 is provided corresponding to the window 3 on the cover plate 2. The color screen 10 is installed in the inner cavity of the main shell 1. The frame thereof is larger than the size of the window 3, so that no gap will appear at the position of the window 3 after installation to avoid affecting the aesthetics. The microcontroller 9 is electrically connected to the CC2530 chip 11 and the WIFI module 13 respectively. The CC2530 chip 11 is provided with an antenna 12 to improve the speed and accuracy of receiving information. The high-frequency power switch 7 is electrically connected to the voltage regulator 14, the voltage regulator 14 is electrically connected to the LED component 15, the LED component 15 is electrically connected to the microcontroller 9, the voltage regulator 14 is electrically connected to the smoke detection sensor 16 and the gas detection sensor 17 respectively, and is used to detect the smoke concentration and the gas concentration in the air respectively. The smoke detection sensor 16 and the gas detection sensor 17 are both electrically connected to the microcontroller 9, and the microcontroller 9 is electrically connected to the voice module 18, and the voice module 18 is provided with a speaker 19.

[0029] As a preferred embodiment, the linear regulator 8 is an AMS1117-3.3V model, the microcontroller 9 is an STM32F103 model, the color screen 10 is a 2.4-inch TFT color screen 10, the WIFI module 13 is a USR-C216 model, the voltage regulator 14 is a 78M05-5V model, the smoke detection sensor 16 is an MP-2 model, the gas detection sensor 17 is an MP-4 model, and the voice module 18 includes AP23341 and AP4890B voice chips. The above components are used because their performance can meet the use requirements and the cost is relatively low, which is easy to promote and use.

[0030] As a preferred embodiment, a card slot 101 is opened in the side wall of the main shell 1, and the main shell 1 is provided with a first protrusion 102 in the card slot 101. The first protrusion 102 and the main shell 1 are integrally formed to improve the overall stability. A card plate 201 is provided on the cover 2, and a second protrusion 202 is provided on the card plate 201. The cover 2, the card plate 201 and the second protrusion 202 are integrally formed. Such a setting is also to improve the overall stability of the device. The card plate 201 and the first protrusion 102 on the main shell 1 are interlocked and engaged with each other through the second protrusion 202, so that the cover 2 can be removed and reinstalled from the main shell 1, which is easy to use.

[0031] As a preferred embodiment, a micro cylinder 20 is symmetrically fixed on the top wall of the inner cavity of the cover plate 2. The micro cylinder 20 is a commonly used electrical component and will not be described in detail here. A mounting plate 21 is fixedly provided on the output end of the micro cylinder 20. A plurality of brushes 22 are provided on the side of the mounting plate 21 close to the air inlet 5. The micro cylinder 20 can drive the mounting plate 21 to move up and down, so that the air inlet 5 can be cleaned with the brush 22 to prevent the air inlet 5 from being blocked by dust and affecting the detection accuracy of the smoke detection sensor 16 and the gas detection sensor 17.

[0032] As a preferred embodiment, a mounting groove 23 is provided on the side of the mounting plate 21 away from the micro cylinder 20, and a button 24 is provided on the top wall of the mounting groove 23. The button 24 is wirelessly connected to the microcontroller 9. When the button 24 is triggered, the relevant information can be displayed on the color screen 10 through the microcontroller 9, thereby reminding the user to replace the failed and swollen mesh bag-filled water-absorbing resin 29 in time. A spring 25 is provided in the mounting groove 23, and the spring 25 is connected to the trigger block 26. The trigger block 26 is fixed on the pressure plate 27. Velcro hook surfaces 28 are symmetrically provided on both sides of the cover plate 2, and a mesh bag-filled water-absorbing resin 29 is provided above the Velcro hook surface 28. A Velcro fur surface 30 is provided on the bottom surface of the mesh bag-filled water-absorbing resin 29. The Velcro hook surface 28 and the Velcro fur surface 30 are adhered to each other, and the mesh bag-filled water-absorbing resin 29 is provided below the pressure plate 27.

[0033] Working principle: The gas will enter the inner cavity of the main shell 1 through the air inlet 5 on the cover plate 2. The smoke detection sensor 16 and the gas detection sensor 17 detect the smoke concentration and gas concentration in the gas. When the concentration is greater than or equal to the set threshold, the indicator light strip 4 starts to light up and flash, and the voice module 18 and the speaker 19 send out a pre-set reminder voice to give an audible and visual alarm.

[0034] After long-term use, the air inlet 5 will be blocked by dust accumulation in the air, resulting in poor air intake, and the detection accuracy of the smoke detection sensor 16 and the gas detection sensor 17 will be greatly reduced. At this time, the micro cylinder 20 can be controlled. For ease of use, an external wireless switch can also be set for remote control. After starting, the micro cylinder 20 pushes the mounting plate 21 downward, and the brush 22 on the mounting plate 21 will clean the air inlet 5. At the same time, a mesh bag filled with absorbent resin 29 is also attached to the inside of the cover plate 2, which can absorb moisture in the air in time to protect the internal circuit and the detection probe. It plays a role in drying and waterproofing. When the water-absorbing resin 29 in the mesh bag swells due to the large amount of water absorbed, in the descending mounting plate 21, the pressing plate 27 will trigger the button 24 through the trigger block 26 due to the restriction of the swollen water-absorbing resin 29 in the mesh bag. Then the button 24 can display the relevant information on the color screen 10 through the microcontroller 9, so as to remind the user to replace the failed and swollen water-absorbing resin 29 in the corresponding position in time. Without removing the cover plate 2, it is possible to understand whether the water-absorbing resin 29 in the mesh bag, a desiccant, needs to be replaced while cleaning and removing dust, which is more convenient to use.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite alarm, comprising a main housing (1) and a cover plate (2), characterized in that: The main housing (1) and the cover plate (2) are snap-fitted together; a window (3) is provided on the cover plate (2); an indicator light strip (4) and an air inlet (5) are symmetrically arranged on both sides of the window (3); a plug (6) is arranged on the back of the main housing (1); the plug (6) is electrically connected to a high-frequency power switch (7); the high-frequency power switch (7) is arranged on the main housing (1); a linear voltage regulator (8) is electrically connected to the high-frequency power switch (7); the linear voltage regulator (8) is arranged in the inner cavity of the main housing (1); a microcontroller (9) is electrically connected to the linear voltage regulator (8); the microcontroller ( A color screen (10) is electrically connected to the cover plate (9), the color screen (10) is arranged corresponding to the window (3) on the cover plate (2), the microcontroller (9) is electrically connected to the CC2530 chip (11) and the WIFI module (13), the CC2530 chip (11) is provided with an antenna (12), the high-frequency power switch (7) is electrically connected to the voltage regulator (14), the voltage regulator (14) is electrically connected to the LED component (15), the LED component (15) is electrically connected to the microcontroller (9), the voltage regulator (14) is electrically connected to the smoke detection sensor (16) and the gas detection sensor (17), respectively. The smoke detection sensor (16) and the gas detection sensor (17) are both electrically connected to the microcontroller (9), the microcontroller (9) is electrically connected to the voice module (18), the voice module (18) is provided with a speaker (19), a micro cylinder (20) is symmetrically fixedly provided on the top wall of the inner cavity of the cover plate (2), a mounting plate (21) is fixedly provided at the output end of the micro cylinder (20), a plurality of brushes (22) are provided on the side of the mounting plate (21) close to the air inlet (5), a mounting groove (23) is provided on the side of the mounting plate (21) away from the micro cylinder (20), and a top wall of the mounting groove (23) is provided A button (24) is provided, the button (24) and the microcontroller (9) are wirelessly connected, a spring (25) is provided in the installation slot (23), the spring (25) is connected to a trigger block (26), the trigger block (26) is fixed to a pressure plate (27), Velcro hook surfaces (28) are symmetrically provided on both sides of the cover plate (2), a mesh bag of water-absorbing resin (29) is provided above the Velcro hook surface (28), a Velcro fleece surface (30) is provided on the bottom surface of the mesh bag of water-absorbing resin (29), the Velcro hook surface (28) and the Velcro fleece surface (30) are adhered to each other, and the mesh bag of water-absorbing resin (29) is provided below the pressure plate (27).

2. A composite alarm according to claim 1, characterized in that: The linear regulator (8) is an AMS1117-3.3V model, the microcontroller (9) is an STM32F103 model, the color screen (10) is a 2.4-inch TFT color screen (10), the WIFI module (13) is a USR-C216 model, the voltage regulator (14) is a 78M05-5V model, the smoke detection sensor (16) is an MP-2 model, the gas detection sensor (17) is an MP-4 model, and the voice module (18) includes AP23341 and AP4890B voice chips.

3. A composite alarm according to claim 2, characterized in that: A card slot (101) is provided in a side wall of the main shell (1); a first protrusion (102) is provided in the card slot (101) of the main shell (1); the first protrusion (102) and the main shell (1) are integrally formed; a card plate (201) is provided on the cover plate (2); a second protrusion (202) is provided on the card plate (201); the cover plate (2), the card plate (201) and the second protrusion (202) are integrally formed; the card plate (201) and the first protrusion (102) on the main shell (1) are mutually engaged and buckled via the second protrusion (202).

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