High-decibel acousto-optic alarm

Abstract

The utility model relates to the technical field of fire-fighting equipment, in particular to a high-decibel audible and visual alarm, which comprises an alarm base and a piezoelectric buzzing sheet, and the piezoelectric buzzing sheet is mounted on the alarm base. The alarm base is provided with a resonator which is acoustically coupled with the piezoelectric buzzer and is used for enhancing the amplitude of sound waves; the periphery of the resonator is provided with a sound amplification cylinder which extends axially and is used for carrying out directional propagation on enhanced sound waves. The problem that the alarm decibel is affected is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field more specifically, relate to a high decibel sound and light alarm. BACKGROUND

[0002] At present, sound and light alarm, especially fire sound and light alarm, is used to produce sound alarm and flash alarm at the accident scene, and can be especially applicable to the places with low visibility or smoke generation at the accident scene, such as public places, industrial production areas, traffic arteries and the like. Through emitting strong sound and flash signals, the sound and light alarm can quickly attract people's attention and remind people to take countermeasures.

[0003] The related technology can refer to the Chinese patent with the announcement number CN201920584586.9, which discloses a sound and light alarm, which comprises a base and a shell, a circuit board and a buzzer are arranged in the shell, and a damping assembly for avoiding the buzzer from falling off due to vibration is arranged in the shell.

[0004] In the related technology, the sound and light alarm usually only spreads through the alarm sound of the buzzer. In actual industrial application, due to the different installation environments and the influence of external sound, the alarm decibel of the alarm is also affected to a certain extent, which cannot meet the actual demand, and therefore an alarm with improved sound decibel is needed. UTILITY MODEL CONTENT

[0005] The utility model discloses a high decibel sound and light alarm to solve the problem that the alarm decibel is affected, and aims at the above-mentioned defects of the prior art.

[0006] The utility model discloses the technical scheme adopted to solve its technical problems is:

[0007] A high decibel sound and light alarm, comprising an alarm base and a piezoelectric buzzer, the piezoelectric buzzer is installed on the alarm base, a resonator is arranged on the alarm base and acoustically coupled with the piezoelectric buzzer, and the resonator is used to enhance the amplitude of sound waves.

[0008] The outer periphery of the resonator is provided with an axially extending sound amplifying cylinder, and the sound amplifying cylinder is used to directionally propagate the enhanced sound waves.

[0009] Through the above technical scheme, in the process of alarm, the piezoelectric buzzer is the sound source, and the sound of the piezoelectric buzzer can be amplified under the action of the resonator, the sound amplifying cylinder can amplify and propagate the sound twice, at the same time, the increase of the sound amplifying cylinder can make the alarm sound propagation range wider and the propagation distance farther, so as to improve the alarm sound pressure level.

[0010] Preferably, the resonator is connected with a ring-shaped light-transmitting cover, the inner side of the light-transmitting cover forms a recessed area, the outer side of the light-transmitting cover is covered with a hemispherical light-diffusing cover, and the resonator, the middle gap of the light-transmitting cover, the recessed area of the light-transmitting cover and the light-diffusing cover jointly define a closed acousto-optic resonance cavity.

[0011] By adopting the technical scheme, the acousto-optic resonance cavity can further amplify the alarm sound generated by the piezoelectric buzzer on the basis of the resonator, the light-transmitting cover and the light-diffusing cover can not only effectively transmit light but also protect the internal structure of the siren, reduce the influence of dust or collision on the internal structure of the siren, and prolong the service life of the siren as a whole.

[0012] Preferably, the axial center area of the light-diffusing cover is recessed inward to form an acoustic wave reflection surface corresponding to the recessed area of the light-transmitting cover.

[0013] By adopting the technical scheme, the recess of the light-transmitting cover can change the shape of the acousto-optic resonance cavity, so that the acousto-optic resonance cavity forms a recessed cavity, thereby being capable of strengthening the resonance effect and the propagation effect to some extent and effectively expanding the light-emitting surface.

[0014] Preferably, the cross section of the sound amplification cylinder gradually expands from the base end close to the alarm base to the distal end, and the sound amplification cylinder is coaxially arranged with the light-diffusing cover.

[0015] By adopting the technical scheme, the sound amplification cylinder arranged in a horn shape can not only expand the propagation range of the alarm sound but also strengthen the resonance effect to some extent.

[0016] Preferably, an upper shell is arranged above the alarm base, the sound amplification cylinder and the upper shell are formed as a single component, and the upper shell is used to carry other functional modules.

[0017] By adopting the technical scheme, the integrity of the siren is increased to some extent, the assembly steps are simplified, the adaptability of the siren is stronger, and the siren is convenient for later maintenance.

[0018] Preferably, a waterproof sound-transmitting film is arranged at the joint of the resonator and the light-transmitting cover, and the waterproof sound-transmitting film covers the open end of the resonator.

[0019] By adopting the technical scheme, the waterproof sound-transmitting film can further protect the internal structure of the siren on the basis of the light-diffusing cover, effectively transmit sound, and reduce the decibel loss during the alarm.

[0020] Preferably, a ring-shaped lamp panel is embedded in the inner periphery of the light-transmitting cover, and the light-emitting surface of the lamp panel faces the light-diffusing cover.

[0021] By adopting the technical scheme, the light-transmitting cover can not only provide a sealed installation environment for the lamp panel and protect multiple lamp panels, but also amplify and guide the alarm sound.

[0022] Preferably, the upper shell is connected with the alarm base through circumferentially distributed interlocking components, the interlocking components include intermittent protrusions arranged on the upper shell and matched clamping parts arranged on the alarm base, and the protrusions form L-shaped guide grooves to accommodate the clamping parts.

[0023] By adopting the technical scheme, the connection structure is directly added on the upper shell and the body of the alarm base, the number of parts is reduced, the integrity of the alarm is enhanced, and the later maintenance is facilitated; meanwhile, during the connection of the outer shell and the alarm base, the clamping parts are only needed to be aligned with the guide grooves, and then the alarm base is screwed and rotated, so that the outer shell is installed on the alarm base, and the operation is simple and fast.

[0024] Preferably, the inner wall of the upper shell is provided with a sealed installation part, the side wall of the light-transmitting cover is provided with an arc-shaped positioning buckle matched with the installation part, and the installation part and the positioning buckle are sealed and coupled through an elastic sealing ring.

[0025] By adopting the technical scheme, during the installation of the light-transmitting cover, the positioning buckle is only needed to be aligned with the installation part, and the light-transmitting cover is pressed down, so that the positioning buckle is clamped in the installation part, the operation is simple, there is no extra part, and the integrity is high; and the elastic sealing ring can play a sealing role between the light-transmitting cover and the upper shell, further strengthens the connection relationship between the light-transmitting cover and the upper shell, and also reduces the dust entering the light-transmitting cover and the inside of the acousto-optic resonance cavity.

[0026] The beneficial effects of the utility model lie in:

[0027] 1. The piezoelectric buzzer is the sound source during the alarm, the sound of the piezoelectric buzzer can be amplified under the action of the resonator by setting the resonator and the sound amplifying cylinder, the sound amplifying cylinder can amplify and spread the sound twice, meanwhile, the sound amplifying cylinder can make the alarm sound spread wider and farther, and improve the alarm sound pressure level.

[0028] 2. The acousto-optic resonance cavity is formed among the upper shell, the light-transmitting cover and the light diffusing cover, the alarm generated by the piezoelectric buzzer can be further amplified on the basis of the resonator, the light-transmitting cover and the light diffusing cover can not only transmit light effectively, but also protect the internal structure of the alarm, and reduce the influence of dust or collision on the inside of the alarm.

[0029] 3、The application increases the integrity of the alarm to a certain extent by setting the sound amplification cylinder as a horn shape and combining with the upper shell, reduces the components of the alarm, makes the installation steps more convenient and fast, can be applied to more different use environments, and is convenient for product maintenance in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the premise of the drawings:

[0031] Figure 1 is a structure schematic diagram of the high-decibel sound-light alarm of the embodiment of the present application.

[0032] Figure 2 is a structure schematic diagram of the upper shell of the embodiment of the present application.

[0033] Figure 3 is an explosion structure schematic diagram of the high-decibel sound-light alarm of the embodiment of the present application.

[0034] Figure 4 is a structure schematic diagram of the clamping part of the embodiment of the present application.

[0035] Explanation of reference numerals: 1, alarm base; 11, clamping part; 12, anti-disassembly screw; 2, piezoelectric buzzer sheet; 3, upper shell; 31, waterproof sound-permeable film; 32, protrusion; 33, guide groove; 34, mounting part; 41, resonator; 42, sound amplification cylinder; 421, reinforcing rib plate; 43, light-transmitting cover; 431, positioning buckle; 44, light diffusion cover; 45, lamp plate; 46, elastic sealing ring; 47, sound-light resonance cavity. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described below clearly and completely. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0037] The embodiment of the present application discloses a high-decibel sound-light alarm, referring to Figure 1 and Figure 2A high-decibel sound-light alarm includes an alarm base 1, a piezoelectric buzzer 2, an upper shell 3, a resonator 41, an amplifying tube 42, a light-transmitting cover 43, and a light-diffusing cover 44; the piezoelectric buzzer 2 is installed on the alarm base 1. The alarm base 1 can protect the internal components of the alarm and the user-introduced wire, and is also a mounting part of the alarm and the building; the piezoelectric buzzer 2 is the sound source of the alarm; the upper shell 3 can bear the resonator 41 and the amplifying tube 42 and is detachably connected with the alarm base 1.

[0038] The resonator 41 is used to strengthen the amplitude of the sound wave generated by the piezoelectric buzzer 2, and the amplifying tube 42 is used to amplify the sound enhanced by the resonator 41.

[0039] During the alarm process, the piezoelectric buzzer 2 vibrates to alarm, and the sound of the piezoelectric buzzer can be amplified under the action of the resonator 41. The amplifying tube 42 can further amplify and propagate the sound, and the amplifying tube 42 can make the alarm sound propagate more widely and farther, so as to increase the sound pressure level of the alarm sound.

[0040] The amplifying tube 42 is trumpet-shaped, the cross section of the amplifying tube 42 gradually expands from the base end close to the alarm base 1 to the distal end, and the amplifying tube 42 is coaxially arranged with the light-diffusing cover 44, and the amplifying tube 42 is integrally formed with the upper shell 3. The outer wall of the amplifying tube 42 and the outer wall of the upper cover are uniformly provided with reinforcing rib plates 421 along the circumferential surface.

[0041] The reinforcing rib plates 421 can effectively increase the strength of the amplifying tube 42, reduce the damage caused by collision, prolong the service life of the alarm, and make the alarm applicable to a wider range.

[0042] The inner side of the light-transmitting cover 43 is connected with the resonator 41, and the outer side is connected with the upper shell 3. The light-transmitting cover 43 is an annular shell, the inner side of the light-transmitting cover 43 forms a recessed area, the light-diffusing cover 44 is a hemispherical shell and covers the outside of the light-transmitting cover 43, the light-transmitting cover 43, the light-diffusing cover 44 and the resonator 41 are coaxially arranged, and the resonator 41, the central gap of the light-transmitting cover 43, the recessed area of the light-transmitting cover 43 and the light-diffusing cover 44 jointly define a closed sound-light resonance cavity 47.

[0043] The sound-light resonance cavity 47 can further amplify the alarm generated by the piezoelectric buzzer 2 on the basis of the resonator 41. The light-transmitting cover 43 and the light-diffusing cover 44 can not only effectively transmit light, but also protect the internal structure of the alarm, reduce the influence of dust or collision on the internal structure of the alarm.

[0044] The upper shell 3 is detachably mounted on the alarm base 1, the light-transmitting cover 43 is connected with the upper shell 3, and the light diffusion cover 44 is arranged on the light-transmitting cover 43. The axial center area of the light diffusion cover 44 is inwardly recessed to form a sound wave reflection surface corresponding to the recessed area of the light-transmitting cover 43.

[0045] The recess of the light diffusion cover 44 can change the shape of the acousto-optic resonant cavity 47, so that the acousto-optic resonant cavity 47 forms a recessed cavity, thereby being capable of strengthening the resonance effect and the propagation effect to a certain extent; and the recessed arrangement of the light diffusion cover 44 can also more effectively receive and scatter the light emitted by the light source, thereby expanding the light-emitting surface.

[0046] The inner periphery of the light-transmitting cover 43 is embedded with the annular lamp panel 45, and the light-emitting surface of the lamp panel 45 faces the light diffusion cover 44. The light-transmitting cover 43 not only provides a sealed mounting environment for the lamp panel 45, but also protects the multiple lamp panels 45, and can also amplify and guide the alarm sound.

[0047] The combination part of the resonator 41 and the light-transmitting cover 43 is provided with a waterproof sound-transmitting film 31 covering the open end of the resonator 41. The waterproof sound-transmitting film 31 not only can further protect the inside of the alarm on the basis of the light diffusion cover 44, but also can effectively transmit sound and reduce the decibel loss during the alarm.

[0048] Referring to Figure 3 and Figure 4 , the upper shell 3 and the alarm base 1 are connected through the circumferentially distributed interlocking assemblies, the interlocking assemblies include the intermittent protrusions 32 arranged on the upper shell 3 and the matching clamping parts 11 arranged on the alarm base 1, and the L-shaped guide grooves 33 are formed between the protrusions 32 to accommodate the clamping parts 11.

[0049] The connecting structure is directly added on the body of the upper shell 3 and the alarm base 1, the number of parts is reduced, the integrity of the alarm is enhanced, and the later maintenance is facilitated; meanwhile, during the process of connecting the shell and the alarm base 1, only the clamping parts 11 need to be aligned with the guide grooves 33, then the alarm base 1 is twisted and rotated, and the shell can be mounted on the alarm base 1, so that the operation is simple and fast.

[0050] The inner wall of the upper shell 3 is provided with a sealing mounting part 34, the side wall of the light-transmitting cover 43 is provided with an arc-shaped positioning buckle 431 matched with the mounting part 34, and the mounting part 34 and the positioning buckle 431 are sealingly coupled through the elastic sealing ring 46. As an optional embodiment, the light-transmitting cover 43 and the light diffusion cover 44 also adopt the above connection mode.

[0051] In the process of installing the light-transmitting cover 43, only need to align the positioning buckle 431 with the mounting portion 34, press down the light-transmitting cover 43, so that the positioning buckle 431 is clamped in the mounting portion 34, the operation is simple, and there is no extra part, and the integrity is strong; and the elastic sealing ring 46 can play a sealing role between the light-transmitting cover 43 and the upper shell 3, further strengthen the connection relationship between the light-transmitting cover 43 and the upper shell 3, can also reduce the dust into the light-transmitting cover 43 and the inside of the sound-light resonance cavity 47.

[0052] The alarm base 1 is further provided with an anti-disassembly screw 12, which can increase the stability of the alarm as a whole to a certain extent, prevent non-maintenance personnel from disassembling the product privately, and protect the alarm as a whole. The alarm base is further provided with a sound-light alarm control unit for controlling the alarm state.

[0053] The implementation principle of the high-decibel sound-light alarm of the embodiment of the application is as follows: when the alarm is alarming, the piezoelectric buzzer 2 vibrates to generate an alarm, the resonator 41 can increase the alarm decibel on the basis of the piezoelectric buzzer 2, the sound-light resonance cavity 47 can further increase the vibration alarm of the piezoelectric buzzer 2, the horn 42 can not only expand the propagation range of the alarm sound, but also can strengthen the resonance effect to a certain extent, and can also protect the alarm as a whole.

[0054] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A high-decibel sound-light alarm, comprising an alarm base (1) and a piezoelectric buzzer sheet (2) mounted on the alarm base (1); characterized in that, The alarm base (1) is provided with a resonator (41) acoustically coupled with the piezoelectric buzzer (2), which is used to enhance the amplitude of sound waves; The resonator (41) is provided with an axially extending sound amplification cylinder (42), which is used to direct the propagation of the enhanced sound waves.

2. A high decibel sounder according to claim 1, wherein, The resonator (41) is connected with an annular light-transmitting cover (43), the inner side of the light-transmitting cover (43) forms a recessed area, the outer side of the light-transmitting cover (43) is covered with a hemispherical light diffusion cover (44), the resonator (41), the central gap of the light-transmitting cover (43), the recessed area of the light-transmitting cover (43) and the light diffusion cover (44) jointly define a closed acousto-optic resonance cavity (47).

3. A high decibel sounder according to claim 2, wherein, The axial center area of the light diffusion cover (44) is recessed inwardly to form a sound wave reflecting surface corresponding to the recessed area of the light-transmitting cover (43).

4. A high decibel sounder according to claim 2, wherein, The cross section of the sound amplification cylinder (42) gradually expands from the base end close to the alarm base (1) to the distal end, and is coaxially arranged with the light diffusion cover (44).

5. A high decibel sounder according to claim 2, wherein, An upper shell (3) is arranged above the alarm base (1), the sound amplification cylinder (42) and the upper shell (3) are formed as a single component, and the upper shell (3) is used to carry other functional modules.

6. A high decibel sounder according to claim 2, wherein, The combination part of the resonator (41) and the light-transmitting cover (43) is provided with a waterproof sound-transmitting film (31), which covers the open end of the resonator (41).

7. A high decibel sounder according to claim 2, wherein, The inner periphery of the light-transmitting cover (43) is embedded with an annular lamp panel (45), and the light-emitting surface of the lamp panel (45) faces the light diffusion cover (44).

8. A high decibel photoacoustic alarm as claimed in claim 5 wherein, The upper shell (3) and the alarm base (1) are connected through circumferentially distributed interlocking assemblies, the interlocking assemblies include intermittent protrusions (32) arranged on the upper shell (3) and matching clamping parts (11) arranged on the alarm base (1), L-shaped guide grooves (33) are formed between the protrusions (32) to accommodate the clamping parts (11).

9. A high decibel photoacoustic siren as claimed in claim 5 wherein, The inner wall of the upper shell (3) is provided with a sealing mounting part (34), the side wall of the light-transmitting cover (43) is provided with an arc-shaped positioning buckle (431) matched with the mounting part (34), and the mounting part (34) and the positioning buckle (431) are sealingly coupled through an elastic sealing ring (46).

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