CN111127801A

CN111127801A - Buzzing fire alarm

Info

Publication number: CN111127801A
Application number: CN201811288515.0A
Authority: CN
Inventors: 吴志奇
Original assignee: Jiangmen Qibin Mould Products Co Ltd
Current assignee: Jiangmen Qibin Mould Products Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2020-05-08

Abstract

The invention provides a buzzing fire alarm which comprises a shell, a circuit board and a buzzer, wherein the circuit board is positioned in the shell, the buzzer is electrically connected with the circuit board, the shell comprises a mounting seat and a buckling cover, the top of the mounting seat is open, the circuit board is mounted and connected in the open, the buckling cover is buckled and connected at the open of the mounting seat, a buckling bin is convexly arranged at the center of the bottom surface of the buckling cover, the buzzer is buckled and connected in the buckling bin, and a sound outlet hole penetrating through a cover body is formed in the position, corresponding to the buzzer, of the buckling cover; the top surface of the buckling cover is also connected with a sound amplifying cover with a plurality of vertical holes hollowed out in the periphery, and the bottom surface of the sound amplifying cover is convexly provided with an echo platform corresponding to the position of the sound transmitting hole. The buzzer fire alarm provided by the invention has the advantages of small volume, simple structure, good sound amplification effect and wider transmission range.

Description

Buzzing fire alarm

Technical Field

The invention relates to the field of fire alarm, in particular to a buzzer fire alarm.

Background

In the field of fire alarms, the alarms are applied to the fields of system faults, safety precaution, transportation, medical treatment and rescue, emergency relief, induction detection and the like, and are inseparable from social production, and the alarms in the existing fire alarm system are generally internally provided with sounding horns, so that the alarm is large in size, inconvenient to install and easy to damage due to collision. Most alarms with small volume and buzzers have limited diffusion and transmission of alarm sound due to the limitation of the shell, so that the problems of poor sound amplification effect and narrow alarm sound transmission range are caused, and the problems are very unfavorable for fire safety.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the buzzer fire alarm which is small in size, simple in structure, good in sound amplification effect and wide in transmission range.

The present invention thus achieves the above objects:

the buzzing fire alarm comprises a shell, a circuit board and a buzzer, wherein the circuit board is positioned in the shell, the buzzer is electrically connected with the circuit board, the shell comprises a mounting seat and a buckling cover, the top of the mounting seat is open, the circuit board is mounted and connected in the open, the buckling cover is buckled and connected at the open of the mounting seat, a buckling bin is convexly arranged in the center of the bottom surface of the buckling cover, the buzzer is buckled and connected in the buckling bin, and a sound outlet hole penetrating through a cover body is formed in the buckling cover corresponding to the position of the buzzer; the top surface of the buckling cover is also connected with a sound amplifying cover with a plurality of vertical holes hollowed out in the periphery, and the bottom surface of the sound amplifying cover is convexly provided with an echo platform corresponding to the position of the sound transmitting hole.

The echo table is a hollow round table with an open bottom, and circular arcs between the inner wall surface and the outer wall surface of the hollow round table and the bottom surface of the sound amplifying cover are transited into circular arc surfaces.

The bottom of the buckling bin is open, the opening is further provided with a bin cover in interference fit with the inner wall surface of the opening, and the bin cover is buckled at the opening and tightly buckles the buzzer in the buckling bin.

The sound amplifying cover and the top surface of the buckling cover are respectively provided with a plurality of matched buckles and buckling grooves, and the sound amplifying cover and the top surface of the buckling cover are tightly buckled through the buckles and the buckling grooves.

The buckling cover is convexly provided with a buckling ring along the inner wall surface of the opening of the mounting seat, the buckling ring and the inner wall surface of the opening of the mounting seat are respectively provided with a male buckle I and a female buckle I which are matched with each other, and the buckling ring and the inner wall surface of the opening of the mounting seat are locked and buckled through the male buckle I and the female buckle I which are matched with each other.

The mounting base bottom surface department still is equipped with the mounting panel with casing fixed connection to installation face, the mounting panel with the mounting base bottom surface is equipped with pin thread II and box II of mutually supporting respectively, and mounting base bottom surface and mounting panel are fixed through pin thread II and box II lock joint of mutually supporting.

The mounting plate is provided with a wire connecting hole and a screw mounting hole for the mounting plate in a penetrating manner.

The mounting seat surrounds the mounting plate along the edge of the bottom surface of the mounting seat to form a wrapping edge.

The invention has the beneficial effects that: compared with the prior art, the buzzer fire alarm is small in size and simple in structure, the buzzer is located in the buckling bin which is sealed at the periphery and only provided with one sound outlet hole, the alarm sound transmitted from the sound outlet hole is expanded and dispersed along the periphery of the buzzer alarm from the vertical holes at the periphery of the sound amplifying cover under the action of multiple reflections of the response platform convexly arranged on the bottom surface of the sound amplifying cover, and the buzzer fire alarm is good in sound amplifying effect and wider in transmission range compared with a buzzer alarm without the response platform.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic, broken away view of the present invention;

fig. 2 is a schematic cross-sectional structure of the present invention.

In the figure, 1, a circuit board, 2, a buzzer, 3, a mounting seat, 4, a buckling cover, 5, a buckling bin, 6, a sound outlet hole, 7, a vertical hole, 8, a sound amplification cover, 9, an echo table, 10, a bin cover, 11, a buckle, 12, a clamping groove, 13, a buckling ring, 14, a male buckle I, 15, a female buckle I, 16, a mounting plate, 17, a male buckle II, 18, a female buckle II, 19, an electric wire connecting hole, 20, a screw mounting hole and 21 wrapping edges are arranged.

Detailed Description

As shown in fig. 1 to 2, the buzzer fire alarm includes a housing, a circuit board 1 located in the housing, and a buzzer 2 electrically connected to the circuit board 1, wherein the housing includes a mounting seat 3 and a fastening cover 4, the top of the mounting seat 3 is open, the circuit board 1 is mounted and connected in the open, the fastening cover 4 is fastened and connected to the open of the mounting seat 3, a fastening bin 5 is convexly arranged at the center of the bottom surface of the fastening cover 4, the buzzer 2 is fastened and connected in the fastening bin 5, and a sound outlet hole 6 penetrating through the cover body is arranged at a position of the fastening cover 4 corresponding to the buzzer 2; the top surface of the buckling cover 4 is also connected with a sound amplifying cover 8 with a plurality of vertical holes 7 hollowed out on the periphery, and the bottom surface of the sound amplifying cover is convexly provided with an echo platform 9 corresponding to the position of the sound transmitting hole. Compared with the prior art, the buzzer fire alarm has the advantages that the size is small, the structure is simple, the buzzer 2 is arranged in the buckling bin 5 with the periphery sealed and only one sound outlet hole 6, the alarm sound transmitted from the sound outlet hole 6 is expanded and dispersed along the periphery of the buzzer alarm from the vertical holes 7 on the periphery of the sound amplifying cover 8 under the action of multiple reflections of the response platform convexly arranged on the bottom surface of the sound amplifying cover 8, and the buzzer alarm is relatively free of the sound echo platform 9, so that the sound amplifying effect is good, and the transmission range is wider.

In order to make the echo platform 9 of the sound amplifying cover 8 have a better echo effect, the echo platform 9 is a hollow round platform with an open bottom, circular arcs between the inner wall surface and the outer wall surface of the hollow round platform and the bottom surface of the sound amplifying cover 8 are transited into circular arc surfaces, and the circular arc surfaces make the sound transmitted from the sound outlet hole 6 better reflected and diffused out from the vertical holes 7 around the sound amplifying cover 8.

In advancing the spiral-lock storehouse 5 with bee calling organ 2 spiral-lock when for the convenience of equipment, spiral-lock storehouse 5 bottom is uncovered, and uncovered department still is equipped with uncovered internal face interference fit's cang gai 10, cang gai 10 spiral-lock dress is in uncovered department and with the inseparable lock joint of bee calling organ 2 in spiral-lock storehouse 5, can not only guarantee cang gai 10's joint strength with spiral-lock storehouse 5 uncovered interference fit's cang gai 10, can also guarantee that the alarm sound that bee calling organ 2 sent can not reveal away from the junction between cangai 10 and the uncovered inner wall.

For the mode that adopts the screw to connect the equipment, through the public address lid 8 and the mode of spiral-lock dress lid 4 of the inseparable lock joint of a plurality of assorted buckles 11 and catching groove, only need during the assembly with public address lid 8 and spiral-lock dress lid 4 through 11 catching grooves butt joint fastenings of buckle alright with inseparable lock joint between them together, simplified production procedure, reduced the assemble duration, improved assembly efficiency, still practiced thrift accessory purchase cost.

In order to connect and fix the opening of the buckling cover 4 and the mounting seat 3, the buckling cover 4 is convexly provided with a buckling ring 13 along the inner wall surface of the opening of the mounting seat 3, the buckling ring 13 and the inner wall surface of the opening of the mounting seat 3 are respectively provided with a male buckle I14 and a female buckle I15 which are matched with each other, the buckling ring 13 and the inner wall surface of the opening of the mounting seat 3 are locked and buckled through the male buckle I14 and the female buckle I15 which are matched with each other, and the buckling cover 4 and the mounting seat 3 which are tightly buckled through a plurality of matched male buckles I14 and female buckles I15 are assembled, so that the buckling ring 13 and the opening of the buckling cover 4 and the buckling mounting seat 3 can be tightly buckled together only by butting and buckling the male buckle I14 and the female buckle I15 during assembly, the production procedure is simplified, the assembly time of screw locking is reduced, the assembly efficiency is improved, and the purchase cost of accessories is also.

In order to make the installation of buzzer siren more convenient, mount pad 3 bottom surface department still is equipped with the mounting panel 16 with casing fixed connection to installation face, mounting panel 16 with 3 bottom surfaces of mount pad are equipped with pin thread II17 and box II18 of mutually supporting respectively, and mount pad 3 bottom surface and mounting panel 16 are fixed through the pin thread II17 and the lock joint of box II18 of mutually supporting.

In order to pre-mount the mounting plate 16 on the mounting surface and to lead out the electric wire to the buzzer alarm, the mounting plate 16 is provided with an electric wire connection hole 19 and a screw mounting hole 20 for the mounting plate 16.

In order to prevent dust floating in the air from entering the buzzer siren from the joint of the mounting plate 16 and the mounting seat 3 after the buzzer siren is installed, the mounting seat 3 is surrounded by the mounting plate 16 along the edge of the bottom surface to form a covered edge 21.

Claims

1. Buzzing fire alarm, including the casing, be located circuit board (1) in the casing and buzzer (2) of being connected with circuit board (1) electricity, its characterized in that: the shell comprises a mounting seat (3) and a buckling cover (4), the top of the mounting seat (3) is open, the circuit board (1) is installed and connected in the open, the buckling cover (4) is buckled and connected at the open of the mounting seat (3), a buckling bin (5) is convexly arranged at the center of the bottom surface of the buckling cover (4), the buzzer (2) is buckled and connected in the buckling bin (5), and a sound outlet hole (6) penetrating through the cover body is formed in the buckling cover (4) corresponding to the buzzer (2); the top surface of the buckling cover (4) is also connected with a sound amplifying cover (8) with a plurality of vertical holes (7) hollowed out on the periphery, and the bottom surface of the sound amplifying cover is convexly provided with an echo platform (9) corresponding to the position of the sound transmitting hole.

2. A buzzer-type fire alarm as claimed in claim 1, wherein: the echo table (9) is a hollow round table with an open bottom, and circular arcs between the inner wall surface and the outer wall surface of the hollow round table and the bottom surface of the sound amplifying cover (8) are transited into circular arc surfaces.

3. A buzzer-type fire alarm as claimed in claim 1, wherein: the bottom of the buckling bin (5) is open, the opening is further provided with a bin cover (10) in interference fit with the inner wall surface of the opening, and the bin cover (10) is buckled in the opening and tightly buckles the buzzer (2) in the buckling bin (5).

4. A buzzer-type fire alarm as claimed in claim 1, wherein: the loudspeaker cover (8) and the top surface of the buckling cover (4) are respectively provided with a plurality of matched buckles (11) and buckling grooves, and the loudspeaker cover (8) and the top surface of the buckling cover (4) are tightly buckled through the buckles (11) and the buckling grooves.

5. A buzzer-type fire alarm as claimed in claim 1, wherein: the buckling cover (4) is convexly provided with a buckling ring (13) along the inner wall surface of the opening of the mounting seat (3), the buckling ring (13) and the inner wall surface of the opening of the mounting seat (3) are respectively provided with a male buckle I (14) and a female buckle I (15) which are matched with each other, and the buckling ring (13) and the inner wall surface of the opening of the mounting seat (3) are locked and buckled through the male buckle I (14) and the female buckle I (15) which are matched with each other.

6. A buzzer-type fire alarm as claimed in claim 1, wherein: the mounting base (3) bottom surface department still is equipped with mounting panel (16) with casing fixed connection to installation face, mounting panel (16) with mounting base (3) bottom surface is equipped with pin thread II (17) and box II (18) of mutually supporting respectively, and mounting base (3) bottom surface and mounting panel (16) are fixed through pin thread II (17) and box II (18) lock joint of mutually supporting.

7. The buzzer fire alarm of claim 6, wherein: the mounting plate (16) is provided with a wire connecting hole (19) and a screw mounting hole (20) for the mounting plate (16) in a penetrating manner.

8. A buzzer-type fire alarm as claimed in claim 6 or 7, wherein: the mounting seat (3) surrounds the mounting plate (16) along the edge of the bottom surface of the mounting seat to form a covered edge (21).