Fire detection alarm

Abstract

The fire detection alarm comprises a fan, a photoelectric sensor, a housing, a circuit board and a buzzer, the housing comprises an end cover and a tail cover, the tail cover is connected with the end cover through an adaptive sleeve, two ends of the adaptive sleeve are open, a partition plate is arranged in the adaptive sleeve, the open end of the end cover is connected with a quick connector, the tail cover is provided with a boss, and the boss is connected with the circuit board. The split type structure ensures the independence of the functions of all the components. When an accident occurs, for example, a constructor accidentally falls off the end cover, due to the buckle design, the end cover can be separated from the tail cover, and the tail cover can still be stably fixed on the wall surface, so that the normal operation of the detection structure is ensured, and the detection reliability is maintained. In addition, the emergency power supply can continuously supply power to the buzzer when the public circuit is powered off, and the continuous warning function is kept. The application of the magnetic switch not only improves the installation stability of the alarm, but also can trigger the alarm when the alarm is illegally dismounted, thereby effectively preventing the malicious dismounting behavior.

Description

Technical Field

[0001] The utility model belongs to the technical field of alarms, and in particular relates to a fire detection alarm. Background Art

[0002] During the installation process, the alarms currently available on the market are generally fixed to the wall using adhesives or expansion screws. This type of installation method substantially limits the mobility of the alarm and also poses certain safety risks. Especially during home decoration or equipment maintenance, improper operation or accidental touching may cause the alarm to fall off. Since all components of the alarm are built into the protective cover, the user cannot directly observe its internal structure during the installation process. Once the alarm falls, its internal structure is very likely to be damaged. Users often do not realize this damage and reinstall the alarm on the wall, leaving safety hazards. Utility Model Content

[0003] In order to solve the problems raised in the above-mentioned background technology, the utility model provides the following technical solutions: a fire detection alarm, comprising a fan, a photoelectric sensor, a cover shell, a circuit board, and a buzzer, the cover shell comprising an end cover and a tail cover, the tail cover is connected to the end cover through an adapter sleeve, the adapter sleeve is open at both ends, the photoelectric sensor, the buzzer, and the circuit board are all installed on the tail cover, a partition is arranged inside the adapter sleeve, the fan is installed on the partition, the open end of the end cover is connected with a quick connector, the end of the quick connector abuts against the tail cover, a first smoke outlet is provided on the end cover, a second smoke outlet is provided on the outer wall of the adapter sleeve, a boss is provided on the tail cover, the boss is detachably connected to the adapter sleeve, and an emergency power supply connected to the circuit board is arranged inside the boss.

[0004] Furthermore, the boss is clearance-matched with the adapter sleeve, the outer wall of the boss is provided with an undercut and an oblique baffle, the oblique baffle is connected to the side of the undercut adjacent to the quick connector, and the inner wall of the adapter sleeve is respectively provided with a snap groove and a baffle groove adapted to the undercut and the oblique baffle.

[0005] Furthermore, a breaking groove is provided on the outer wall of the inclined baffle.

[0006] Furthermore, a magnetic switch is provided on one side of the partition adjacent to the boss, and the magnetic switch is connected to the circuit board circuit.

[0007] Further, one end of the adapter sleeve is clamped in the end cover, and the other end of the adapter sleeve is abutted against the tail cover.

[0008] Furthermore, the width of the undercut is greater than the width of the oblique blocking piece.

[0009] Furthermore, the undercut and the oblique blocking piece are arranged vertically relative to each other.

[0010] The beneficial effects of the utility model are as follows: the split structure ensures the independence of the functions of each component. In the event of an accident, such as when a construction worker accidentally drops the end cover, the end cover can be separated from the tail cover thanks to the snap-on design, while the tail cover can still be firmly fixed to the wall, ensuring the normal operation of the detection structure, thereby maintaining the reliability of the detection. In addition, the configuration of the emergency power supply can continue to power the buzzer when the public circuit is powered off, maintaining a continuous warning function. The application of the magnetic switch not only improves the installation stability of the alarm, but also can trigger an alarm when the alarm is illegally disassembled, effectively preventing malicious disassembly. The design of the quick connector also improves the installation efficiency of the alarm. The provision of undercuts, oblique baffles and breaking grooves allows the disassembly process to be controlled, which is convenient for normal maintenance and prevents the possibility of accidental or malicious disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model;

[0012] Figure 2 It is the front view of the utility model;

[0013] Figure 3 for Figure 2 Schematic diagram of the section along the AA direction;

[0014] Figure 4 It is an explosion diagram of the utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the utility model;

[0016] Figure 6 for Figure 5 Enlarged view of middle part B;

[0017] Figure 7 This is a schematic diagram of the structure of the tail cover in the utility model;

[0018] Figure 8 for Figure 7 Enlarged view of part C in the middle.

[0019] The meaning of the numbers in the figure are as follows: 1-fan; 2-photoelectric sensor; 3-end cover; 4-tail cover; 5-circuit board; 6-buzzer; 7-partition; 8-quick connector; 9-first cigarette outlet; 10-second cigarette outlet; 11-boss; 12-emergency power supply; 13-undercut; 14-oblique baffle; 15-clip slot; 16-baffle slot; 17-breaking slot; 18-magnetic switch; 19-adapter set. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-8 The utility model provides the following technical solutions: a fire detection alarm, comprising a fan 1, a photoelectric sensor 2, a cover, a circuit board 5, and a buzzer 6. The cover comprises an end cover 3 and a tail cover 4. The tail cover 4 is connected to the end cover 3 through an adapter sleeve 19. The adapter sleeve 19 is open at both ends. The photoelectric sensor 2, the buzzer 6, and the circuit board 5 are all installed on the tail cover 4. A partition plate 7 is arranged in the adapter sleeve 19. The fan 1 is installed on the partition plate 7. A quick connector 8 is connected to the open end of the end cover 3. The end of the quick connector 8 abuts against the tail cover 4. A first smoke outlet 9 is provided on the end cover 3. A second smoke outlet 10 is provided on the outer wall of the adapter sleeve 19. A boss 11 is provided on the tail cover 4. The boss 11 is detachably connected to the adapter sleeve 19. An emergency power supply 12 connected to the circuit board 5 is arranged in the boss 11.

[0022] In the above structure, when a fire occurs, the public circuit is powered off, and the emergency power supply 12 is used to provide temporary power to provide power for the buzzer 6 to sound a buzzer warning; the quick connector 8 does not limit its structure, and its function is to quickly and stably install the alarm on the wall; the split structure sets more detection structures on the tail cover 4. When the end cover 3 is accidentally damaged, its detection structure is not affected, thereby ensuring the purpose of period measurement.

[0023] In this embodiment, the boss 11 is loosely matched with the adapter sleeve 19, and the outer wall of the boss 11 is provided with an undercut 13 and an inclined baffle 14, and the inclined baffle 14 is connected to the side of the undercut 13 adjacent to the quick connector 8, and the inner wall of the adapter sleeve 19 is respectively provided with a snap groove 15 and a baffle groove 16 that are adapted to the undercut 13 and the inclined baffle 14.

[0024] In the above structure, when the oblique baffle 14 is not removed, the installer can remove the undercut 13 from the bayonet slot under the action of the oblique baffle 14 and the baffle slot 16, thereby separating the tail cover 4 from the adapter sleeve 19; after the oblique baffle 14 is removed, the connection between the two cannot be directly disconnected, thereby achieving the technical purpose of preventing disassembly.

[0025] In this embodiment, a breaking groove 17 is provided on the outer wall of the inclined baffle.

[0026] With the above structure, the installer can break the inclined block piece off the boss 11 by hand without using tools, which is more convenient and quick.

[0027] In this embodiment, a magnetic switch 18 is disposed on one side of the partition plate 7 adjacent to the boss 11 , and the magnetic switch 18 is connected to the circuit board 5 .

[0028] With the above structure, the magnetic switch 18 is attached to the boss 11. When the alarm is correctly installed, the boss 11 is adsorbed on the adapter 19 by the magnetic switch 18. If someone tries to disassemble the alarm, the magnetic connection will be broken, and the circuit board 5 will control the buzzer 6 to sound, which plays a role in preventing accidental or malicious disassembly.

[0029] In this embodiment, one end of the adapter sleeve 19 is clamped in the end cover 3 , and the other end of the adapter sleeve 19 is in contact with the tail cover 4 .

[0030] The above structure adopts a split assembly structure, which is easy to manufacture; the other end of the adapter sleeve abuts against the tail cover 4, which serves the technical purpose of identification and prevents the wrong tail cover 4 from being assembled on the end cover 3.

[0031] In this embodiment, the width of the undercut 13 is greater than the width of the oblique blocking piece 14 .

[0032] In this embodiment, the undercut 13 and the oblique blocking piece 14 are arranged relatively vertically.

[0033] 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 fire detection alarm, comprising a fan, a photoelectric sensor, a housing, a circuit board, and a buzzer, characterized in that: The cover shell includes an end cover and a tail cover, the tail cover is connected to the end cover through an adapter sleeve, the adapter sleeve is open at both ends, the photoelectric sensor, the buzzer and the circuit board are all installed on the tail cover, a partition is provided in the adapter sleeve, the fan is installed on the partition, the open end of the end cover is connected with a quick connector, the end of the quick connector abuts against the tail cover, a first smoke outlet is provided on the end cover, a second smoke outlet is provided on the outer wall of the adapter sleeve, a boss is provided on the tail cover, the boss is detachably connected to the adapter sleeve, and an emergency power supply connected to the circuit board is provided in the boss.

2. A fire detection alarm according to claim 1, characterized in that: The boss is clearance-matched with the adapter set, the outer wall of the boss is provided with an undercut and an oblique baffle, the oblique baffle is connected to the side of the undercut adjacent to the quick connector, and the inner wall of the adapter set is respectively provided with a snap groove and a baffle groove adapted to the undercut and the oblique baffle.

3. A fire detection alarm according to claim 2, characterized in that: A breaking groove is arranged on the outer wall of the inclined baffle.

4. A fire detection alarm according to claim 1, characterized in that: A magnetic switch is arranged on one side of the partition adjacent to the boss, and the magnetic switch is connected to the circuit board circuit.

5. A fire detection alarm according to claim 1, characterized in that: One end of the adapter sleeve is clamped in the end cover, and the other end of the adapter sleeve is abutted against the tail cover.

6. A fire detection alarm according to claim 2, characterized in that: The width of the undercut is greater than the width of the oblique blocking piece.

7. A fire detection alarm according to claim 2, characterized in that: The undercut is arranged vertically relative to the oblique blocking piece.

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