Outdoor alarm
By combining conical and annular protective covers, the problem of waterproofing, insect prevention, and bird protection for outdoor electric sirens is solved, achieving a balance between all-around protection and sound transmission.
Patent Information
- Application Number
- CN202423250651.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing protective devices for outdoor electric sirens cannot effectively prevent water, insects, and birds at the same time, and the protective netting also affects the propagation of sound waves.
The device employs a combination of conical and annular conical protective covers. The conical cover protects the upper sound transmission hole, while the annular conical cover protects the lower sound transmission hole. The device is sealed to the alarm body via a connecting ring, which increases axial sealing and installation stability.
It provides all-around protection for the alarm, preventing rainwater from entering while maintaining sound wave propagation and enhancing its insect and bird prevention capabilities.
Smart Images
Figure CN223665060U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of alarm device relates to an outdoor siren. BACKGROUND
[0002] The siren is a device for preventing or preventing the consequences caused by an event in the form of sound, light, air pressure, etc. to remind or warn. Generally divided into mechanical siren and electric siren, the working principle of electric siren is: the motor drives the bell to run at high speed, and the bell continuously inhales air, compresses air and extrudes air to produce ringing sound.
[0003] The electric siren can be placed on the ground, roof, tower or telegraph pole, and the sound waves can be spread to all directions through the circumferential sound hole. When the electric siren is set outdoors, the protective device capable of preventing water, insects and birds becomes a basic requirement. Some electric sirens set protective nets outside the sound hole to prevent insects and birds, but such protective devices cannot prevent water, and the protective net will affect the propagation of sound waves. UTILITY MODEL CONTENT
[0004] The utility model provides an outdoor siren in view of the deficiency of prior art, and the protective structure has better protective effect.
[0005] To solve the above technical problems, the purpose of the utility model is realized by the following technical scheme:
[0006] An outdoor siren, comprising a siren body, a protective device is arranged on the siren body, the protective device comprises a conical protective cover covered on the top of the siren body and a ring conical protective cover covered in the middle of the siren body, an upper shell above the ring conical protective cover is provided with one or more groups of circumferentially distributed upper sound holes, a lower shell below the ring conical protective cover is provided with one or more groups of circumferentially distributed lower sound holes, the conical protective cover forms the protective structure of the upper sound hole, the ring conical protective cover forms the protective structure of the lower sound hole, and the upper end of the ring conical protective cover is provided with a connecting ring, and the connecting ring is sealed and tightly connected with the siren body.
[0007] In the above-mentioned outdoor siren, the taper angle of the conical protective cover is 30-45°, and the ratio of the radial dimension of the bottom of the conical protective cover to the radial dimension of the upper shell is 1.2:1-2.0:1; the taper angle of the ring conical protective cover is 30-45°, and the ratio of the radial dimension of the bottom of the ring conical protective cover to the radial dimension of the lower shell is 1.2:1-2.0:1.
[0008] In the outdoor siren, preferably, the conical protective cover has a smaller conical surface angle than the ring conical protective cover, and the bottom of the conical protective cover has a smaller radial dimension than the bottom of the ring conical protective cover.
[0009] In the outdoor siren, preferably, the upper shell has a smaller axial dimension than the lower shell, and the upper sound hole has a smaller group number than the lower sound hole, that is, the range to be protected by the conical protective cover and the sound hole are smaller than the ring conical protective cover.
[0010] In the outdoor siren, preferably, the bottom of the conical protective cover is not higher than the bottom of the upper sound hole, and the bottom of the ring conical protective cover is not higher than the bottom of the uppermost lower sound hole.
[0011] In the outdoor siren, the top of the upper shell is provided with a conical chamfer, the conical chamfer has the same conical surface angle as the conical protective cover, the conical protective cover is fastened and connected with the conical chamfer through a fastener, and the fastener is perpendicular to the fixing surface.
[0012] In the outdoor siren, the radial dimension of the upper shell is smaller than the radial dimension of the lower shell, the top of the lower shell forms a ring-shaped radial mounting plane, and the connecting ring comprises an axial ring part connected with the outer wall of the lower shell and a radial ring part connected with the radial mounting plane.
[0013] In the outdoor siren, a ring-shaped sealing gasket is arranged between the radial ring part and the radial mounting plane, and the sealing gasket is sealingly connected with the outer wall of the upper shell, the radial mounting plane and the connecting ring.
[0014] In the outdoor siren, the radial ring part and the radial mounting plane are fastened and connected through an axial fastener, and the axial ring part and the lower shell are fastened and connected through a radial fastener.
[0015] Compared with the prior art, the outdoor siren has the following beneficial effects:
[0016] 1. The outdoor siren improves the protection device of the siren, and the combination of the conical protective cover and the ring conical protective cover can comprehensively protect the siren, and is especially suitable for large outdoor sirens and sirens with multiple sound holes.
[0017] 2. The utility model discloses a radial installation plane is established on the shell of siren, and is matched with the connecting ring of specific structure, and the axial sealability of ring cone-shaped protective cover is increased greatly, prevents water from flowing into along the axial gap of ring cone-shaped protective cover and shell, simultaneously, the structure can also increase the installation stability of ring cone-shaped protective cover. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the structural schematic diagram of the utility model;
[0019] Figure 2 It is Figure 1 A enlarged view of place of
[0020] Fig. 1, conical protective cover;2, ring cone-shaped protective cover;3, upper shell;4, upper sound hole;5, lower shell;6, lower sound hole;7, connecting ring;8, conical chamfer;9, radial installation plane;10, axial ring part;11, radial ring part;12, sealing pad. DETAILED DESCRIPTION
[0021] The utility model will be further described in conjunction with the specific embodiment of the drawings, referring to Figures 1-2 :
[0022] An outdoor siren, including siren body, be provided with protective device on siren body, protective device include the conical protective cover 1 of cover in siren body top and the ring cone-shaped protective cover 2 of cover in siren body middle part, the upper shell 3 of ring cone-shaped protective cover 2 top is provided with one group or more groups of circumferentially distributed upper sound hole 4, the lower shell 5 below ring cone-shaped protective cover 2 is provided with one group or more groups of circumferentially distributed lower sound hole 6, the conical protective cover 1 forms the protective structure of upper sound hole 4, and ring cone-shaped protective cover 2 forms the protective structure of lower sound hole 6, and the upper end of ring cone-shaped protective cover 2 is provided with connecting ring 7, and connecting ring 7 is sealed and fastening connection with siren body.
[0023] By comparing the Figure 1 , for the condition that a plurality of sound holes are provided for large siren, the shielding effect of the conical protective cover 1 on the upper sound holes 4 realizes the protection of the upper half sound holes, and the shielding effect of the ring cone-shaped protective cover 2 on the lower sound holes 6 realizes the protection of the lower half sound holes, thereby realizing the overall protection of the siren, avoiding rainwater from entering or splashing into the sound holes, and also simultaneously protecting flying birds or insects. The connecting ring 7 of the present embodiment is also sealed and connected to the siren body, preventing water from flowing into the axial gap between the ring cone-shaped protective cover 2 and the shell.
[0024] In order to obtain a good protection effect, the conical surface of the conical protection cover 1 has an angle of 30-45°, and the ratio of the radial dimension of the bottom of the conical protection cover 1 to the radial dimension of the upper shell 3 is 1.2:1-2.0:1; the conical surface of the ring conical protection cover 2 has an angle of 30-45°, and the ratio of the radial dimension of the bottom of the ring conical protection cover 2 to the radial dimension of the lower shell 5 is 1.2:1-2.0:1.
[0025] Preferably, the conical surface of the conical protection cover 1 has a smaller angle than the conical surface of the ring conical protection cover 2, and the radial dimension of the bottom of the conical protection cover 1 is smaller than the radial dimension of the bottom of the ring conical protection cover 2. Through the above structure, the conical protection cover 1 and the ring conical protection cover 2 can play a synergistic protection role. The conical surface of the ring conical protection cover 2 can receive the raindrops falling from the edge of the conical protection cover 1 to prevent the raindrops from splashing into the lower sound hole 6. At the same time, the ring conical protection cover 2 with a larger angle can quickly drain the rainwater, avoiding the influence of the large size on the drainage.
[0026] Since the rainwater is more likely to enter the upper sound hole 4 of the siren, and the birds and insects are more likely to affect the upper sound hole 4 of the siren, the upper sound hole 4 needs to be protected more importantly. Specifically, the axial dimension of the upper shell 3 is smaller than the axial dimension of the lower shell 5, and the number of the upper sound hole 4 is smaller than the number of the lower sound hole 6, that is, the range to be protected by the conical protection cover 1 and the sound hole are smaller than the ring conical protection cover 2. In the embodiment, only one group of the upper sound hole 4 is provided, and three groups of the lower sound hole 6 are provided.
[0027] Preferably, the plane where the bottom of the conical protection cover 1 is located is not higher than the bottom of the upper sound hole 4; and the plane where the bottom of the ring conical protection cover 2 is located is not higher than the bottom of the uppermost lower sound hole 6.
[0028] In the embodiment, the fixing mode of the conical protection cover 1 is that the top of the upper shell 3 is provided with a conical chamfer 8, the conical surface angle of the conical chamfer 8 is the same as the conical surface angle of the conical protection cover 1, and the conical protection cover 1 is fastened and connected with the conical chamfer 8 through a fastener. The fastener is perpendicular to the fixing surface.
[0029] In the embodiment, the fixing mode of the ring conical protection cover 2 is that the radial dimension of the upper shell 3 is smaller than the radial dimension of the lower shell 5, the top of the lower shell 5 forms a ring-shaped radial mounting plane 9, and the connecting ring 7 includes an axial ring part 10 connected with the outer wall of the lower shell 5 and a radial ring part 11 connected with the radial mounting plane 9.
[0030] Further, a ring-shaped sealing gasket 12 is arranged between the radial ring part 11 and the radial mounting plane 9, and the sealing gasket 12 is simultaneously sealed and connected with the outer wall of the upper shell 3, the radial mounting plane 9 and the connecting ring 7.
[0031] Further, the radial ring part 11 is fastened to the radial mounting plane 9 by axial fasteners, and the axial ring part 10 is fastened to the lower shell 5 by radial fasteners.
[0032] The above assembly structure can further improve the axial sealing between the ring cone-shaped protective cover 2 and the shell, and meanwhile, the stability of the installation of the ring cone-shaped protective cover 2 is improved by the limiting structure of the radial ring part 11 and the radial mounting plane 9.
[0033] During installation, the sealing gasket 12 is first sleeved into the radial mounting plane 9 from the upper end of the alarm body, then the ring cone-shaped protective cover 2 is sleeved into the contact with the sealing gasket 12 from the upper end of the alarm body, then the ring cone-shaped protective cover 2 is fixed by fasteners, and finally, the cone-shaped protective cover 1 is arranged on the top of the alarm body, and the cone-shaped protective cover 1 is fixed by fasteners.
[0034] The above embodiments are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.
Claims
1. An outdoor siren comprising a siren body on which a protection device is provided, characterized in that, The protection device comprises a conical protection cover (1) covering the top of the siren body and a ring conical protection cover (2) covering the middle of the siren body, an upper shell (3) above the ring conical protection cover (2) is provided with one or more groups of circumferentially distributed upper sound holes (4), a lower shell (5) below the ring conical protection cover (2) is provided with one or more groups of circumferentially distributed lower sound holes (6), the conical protection cover (1) forms a protection structure of the upper sound holes (4), the ring conical protection cover (2) forms a protection structure of the lower sound holes (6), and the upper end of the ring conical protection cover (2) is provided with a connecting ring (7) which is sealingly and tightly connected with the siren body.
2. An outdoor siren according to claim 1, characterized in that The taper angle of the conical protection cover (1) is 30-45°, and the ratio of the radial dimension of the bottom of the conical protection cover (1) to the radial dimension of the upper shell (3) is 1.2:1-2.0:1; the taper angle of the ring conical protection cover (2) is 30-45°, and the ratio of the radial dimension of the bottom of the ring conical protection cover (2) to the radial dimension of the lower shell (5) is 1.2:1-2.0:
1.
3. An outdoor siren according to claim 2, wherein The taper angle of the conical protection cover (1) is smaller than that of the ring conical protection cover (2), and the radial dimension of the bottom of the conical protection cover (1) is smaller than that of the ring conical protection cover (2).
4. The outdoor siren of claim 1, wherein, The axial dimension of the upper shell (3) is smaller than that of the lower shell (5), and the number of groups of the upper sound holes (4) is smaller than that of the lower sound holes (6).
5. The outdoor siren of claim 1, wherein, The top of the upper shell (3) is provided with a conical chamfer (8) with the same taper angle as that of the conical protection cover (1), and the conical protection cover (1) is tightly connected with the conical chamfer (8) through fasteners.
6. An outdoor siren according to claim 1, wherein The radial dimension of the upper shell (3) is smaller than that of the lower shell (5), the top of the lower shell (5) forms an annular radial mounting plane (9), and the connecting ring (7) comprises an axial ring part (10) connected with the outer wall of the lower shell (5) and a radial ring part (11) connected with the radial mounting plane (9).
7. An outdoor siren according to claim 6, wherein An annular sealing gasket (12) is arranged between the radial ring part (11) and the radial mounting plane (9), and the sealing gasket (12) is sealingly connected with the outer wall of the upper shell (3), the radial mounting plane (9) and the connecting ring (7).
8. An outdoor siren according to claim 7, wherein The radial ring part (11) and the radial mounting plane (9) are tightly connected through axial fasteners, and the axial ring part (10) and the lower shell (5) are tightly connected through radial fasteners.