CN113706798B - Alarm device - Google Patents
Alarm device Download PDFInfo
- Publication number
- CN113706798B CN113706798B CN202110854160.2A CN202110854160A CN113706798B CN 113706798 B CN113706798 B CN 113706798B CN 202110854160 A CN202110854160 A CN 202110854160A CN 113706798 B CN113706798 B CN 113706798B
- Authority
- CN
- China
- Prior art keywords
- plate
- fixed
- limiting
- alarm
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004146 energy storage Methods 0.000 claims abstract description 8
- 238000007790 scraping Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 241000238631 Hexapoda Species 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/03—Covers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Catching Or Destruction (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses an alarm, which comprises a body, an impeller, a support frame, a sound amplifying cavity and a motor, wherein the impeller is embedded in the body, the sound amplifying cavity is circumferentially arranged on the side wall of the body in cooperation with the impeller, the support frame consists of a fixed plate and three vertical rods and is fixedly connected with the bottom of the body, and a rotating shaft of the motor upwards penetrates through a central shaft of the body and is connected with the impeller shaft; the dustproof mechanism is matched with the sound amplifying cavity and is arranged at the top of the body; the energy storage mechanism is arranged in the middle of the body; the dustproof mechanism comprises a fixed shaft and is arranged on a rotating shaft of the impeller; the dustproof plate is slidably arranged on the fixed shaft; the bottom of the dust-proof plate is covered outside the sound amplifying cavity; the limiting component is arranged at the top end of the fixed shaft in a matched manner with the dust-proof plate; and the upward moving component is matched with the dust-proof plate to be arranged at the top of the body.
Description
Technical Field
The invention belongs to the technical field of alarms, and particularly relates to an alarm.
Background
At present, the structure of the electric alarm for emergency is generally simpler, the working principle of the electric alarm adopts a motor to drive the sounding wheel to run at high speed, and the sounding wheel continuously sucks air, compresses air and extrudes air to generate sounding.
However, the sound amplifying cavity of the existing alarm is extremely easy to be influenced by dust, rain, snow and flying insects to generate the phenomenon of clamping stagnation or poor sound amplifying effect; and in case of special conditions, such as mountain torrent disasters, earthquakes and other special environments, after the power supply is blocked, the motor cannot work normally, so that the alarm is disabled.
Disclosure of Invention
The invention provides an alarm for overcoming the defects of the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the alarm comprises a body, an impeller, a support frame, a sound amplifying cavity and a motor, wherein the impeller is embedded in the body, the sound amplifying cavity is matched with the impeller and is circumferentially arranged on the side wall of the body, the support frame consists of a fixed plate and three vertical rods and is fixedly connected with the bottom of the body, and a rotating shaft of the motor upwards penetrates through a central shaft of the body and is connected with the impeller shaft;
the dustproof mechanism is matched with the sound amplifying cavity and is arranged at the top of the body;
the energy storage mechanism is arranged in the middle of the body;
the dust-proof mechanism comprises
The fixed shaft is arranged on the rotating shaft of the impeller;
the dustproof plate is slidably arranged on the fixed shaft; the bottom of the dust-proof plate is covered outside the sound amplifying cavity;
the limiting component is arranged at the top end of the fixed shaft in a matched manner with the dust-proof plate;
the upward moving assembly is arranged at the top of the body in cooperation with the dust-proof plate;
when the alarm does not work, the dustproof plate can seal and protect the sound amplifying cavity of the alarm, so that dust accumulation, flying insects, birds and the like are prevented from entering, and the phenomenon of clamping stagnation or poor sound amplifying effect is generated; the limiting component enables the dust-proof plate to slide up and down relative to the fixed shaft; the sound amplifying cavity can be completely leaked outside through the upward moving component, and an alarm can be sent out through the cooperation between the impeller and the body; through energy storage mechanism, can utilize the electric energy power supply machine operation that stores before when special environment power is blocked.
Further, the up-shifting assembly comprises
The sliding cylinder is positioned in the middle of the dust-proof plate, the top of the sliding cylinder is slidably arranged on the fixed shaft between the first limiting plate and the second limiting plate, and the inner surface of the sliding cylinder is provided with a spiral strip;
the limiting cylinder is arranged at the top of the sliding cylinder, and the top of the limiting cylinder is contacted with the first limiting plate;
the fixed cylinder is positioned on the top surface of the body, and the outer surface of the fixed cylinder is provided with a spiral groove matched with the spiral strip;
the return spring is positioned between the first limiting plate and the sliding cylinder;
when the alarm works, the motor rotates to drive the dust-proof plate to rotate, so that the spiral strip is in spiral fit with the spiral groove, the dust-proof plate moves upwards until the dust-proof plate rotates to the uppermost end, and the sound amplifying cavity is completely leaked outside.
Further, the limiting assembly comprises
The first limiting plate is arranged at the top of the fixed shaft;
the second limiting plate is arranged in the middle of the fixed shaft;
the limiting block is positioned on the side wall of the fixed shaft;
the limiting chute is positioned at the top end of the sliding cylinder and is a sliding chute of the limiting block;
the dustproof plate slides up and down relative to the fixed shaft by the cooperation of the limiting block and the limiting chute;
further, the top surface of the dust-proof plate is conical; the cone shape can reduce the accumulation of sundries, and the sundries adhered on the cone surface can be thrown away more easily when the motor drives the dust-proof plate to rotate.
Further, the height of the spiral strip matched with the spiral groove is larger than the peripheral height of the sound amplifying cavity on the body.
Further, the top of the fixed cylinder is an inclined plane, and a sliding groove is formed between the spiral groove and the top of the fixed cylinder; when the motor stops working, the bottom end of the spiral strip slides to the bottom end of the inclined surface at the top end of the fixed cylinder through the extrusion of the return spring, then the spiral strip is scratched into the spiral groove through the sliding groove to return, and the sound amplification is closed again.
Further, the energy storage mechanism comprises
The supporting plate is fixed in the middle of the supporting frame;
the storage battery is arranged on the supporting plate;
the photovoltaic panel bracket is fixed on the body below the supporting plate;
the photovoltaic panel is embedded in the photovoltaic panel bracket;
the cleaning component is arranged at the bottom of the supporting plate in cooperation with the photovoltaic panel;
the driving assembly is arranged below the supporting plate in a matched manner and is used for driving the cleaning assembly to rotate;
the photovoltaic panel converts light energy into electric energy to be stored in the storage battery, the storage battery can be used for operating by a power supply, the motor is also connected with an external power supply, and when the power supply is blocked due to special environment, the electric energy in the storage battery can be used for operating by the power supply to remind people.
Further, the cleaning assembly comprises
The rotating block is rotatably arranged on the photovoltaic panel bracket;
the first scraping strip is fixedly connected with one end of the rotating block, is positioned in the middle of the photovoltaic panel and is attached to the photovoltaic panel;
the two second scraping strips are respectively perpendicular to the first scraping strips and are clung to the photovoltaic panel bracket.
Further, the driving assembly comprises
The fixed column is positioned at the bottom of the supporting plate;
the swivel is rotatably arranged on the fixed column;
the torsion spring is positioned between the fixed column and the swivel;
the two fan blades are respectively positioned between the two vertical rods of the support frame and fixedly connected with the swivel, and flanges are uniformly distributed on two sides of the fan blades;
the pulling component is arranged on the swivel in a matching way with the swivel block;
through the fan blade of blowing, the fan blade passes through the swivel and rotates on the fixed column, and the rotation interval is between two montants, and the angle that rotation interval and the axis of fixed column formed is greater than 90.
Further, the pulling member includes
The pull rod is fixed on the swivel;
the connecting block is fixedly connected with the other end of the rotating block;
the sliding column sliding chute is positioned in the connecting block;
the sliding column is slidably arranged in the sliding column chute, and the end part of the sliding column is rotationally connected with the pull rod;
the sliding column spring is positioned between the sliding column and the sliding column sliding chute;
the pivoted swivel can drive the pull rod and rotate to drive the traveller tip and remove, because the traveller slides in the traveller spout, and the tail end and the commentaries on classics piece fixed connection of connecting block, the displacement of the upper end of traveller is greater than the displacement of lower extreme, alright drive the connecting block and rotate, changeing the piece and rotate and drive first strip and the second strip of scraping, strike off the dust impurity of deposit on the photovoltaic board.
The flanging can make wind concentrated and not dispersed to blow the fan blade more easily.
In summary, when the alarm does not work, the dust-proof plate can seal and protect the sound amplifying cavity of the alarm, so that dust accumulation, flying insects, birds and the like are prevented from entering, and the phenomenon of clamping stagnation or poor sound amplifying effect is generated; the photovoltaic panel converts light energy into electric energy to be stored in the storage battery, the storage battery can be used for operating by a power supply, the motor is also connected with an external power supply, and when the power supply is blocked due to special environment, the electric energy in the storage battery can be used for operating by the power supply.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Fig. 3 is an enlarged view at B of fig. 2.
Fig. 4 is an enlarged view at C of fig. 2.
Fig. 5 is a schematic structural view of the fixing cylinder 28.
Detailed Description
As shown in fig. 1 to 5, an alarm comprises a body 1, an impeller 10, a supporting frame 11, a motor 12, a dustproof mechanism and an energy storage mechanism; the impeller 10 can rotate in the body 1, and the bottom is connected with the motor 12; the support frame 11 comprises a fixed plate and three vertical rods at the top, wherein the three vertical rods are uniformly and circumferentially arranged on the fixed plate, and the top of each vertical rod is fixedly connected with the bottom of the body 1.
Specifically, the dustproof mechanism comprises a fixed shaft 2, a dustproof plate 23, a limiting assembly and an upward moving assembly; the upward moving component comprises a sliding cylinder 24, a spiral strip 25, a limiting cylinder 26, a fixed cylinder 28, a spiral groove 29 and a return spring 200; the limiting assembly comprises a first limiting plate 20, a second limiting plate 21, a limiting block 22 and a limiting chute 27; the fixed shaft 2 is fixedly connected with the rotating shaft of the impeller 10; the first limiting plate 20 is arranged at the top of the fixed shaft 2, and the second limiting plate 21 is arranged at the middle part of the fixed shaft 2; the limiting block 22 is positioned on the side wall of the fixed shaft 2 between the first limiting plate 20 and the second limiting plate 21, and the dustproof plate 23 is slidably arranged on the fixed shaft 2; the top surface of the dust-proof plate 23 is conical, the middle part of the conical shape is provided with a sliding cylinder 24, the top of the sliding cylinder 24 can be slidably arranged on the fixed shaft 2 between the first limiting plate 20 and the second limiting plate 21 through a fixed shaft chute and a limiting chute 27 at the top, and the inner surface of the sliding cylinder 24 is provided with a spiral strip 25; the limiting cylinder 26 is arranged at the top of the sliding cylinder 24, and the top of the limiting cylinder 26 is contacted with the first limiting plate 20; the return spring 200 is positioned between the first limiting plate 20 and the slide 24; the fixed cylinder 28 is positioned on the top surface of the body 1, the top is an inclined surface, a sliding groove 281 is formed between the spiral groove 29 and the top of the fixed cylinder 28, the spiral groove 29 which is in spiral fit with the spiral strip 25 is formed on the outer surface of the fixed cylinder 28, and the height of the spiral strip 25 which is matched with the spiral groove 29 is larger than the peripheral height of the sound amplifying cavity on the body 1.
Specifically, the energy storage mechanism comprises a supporting plate 3, a storage battery 4, a photovoltaic panel bracket 5, a photovoltaic panel 50, a cleaning assembly and a driving assembly; the supporting plate 3 is fixed in the middle of the supporting frame 11, and the storage battery 4 is arranged on the supporting plate 3; the photovoltaic panel bracket 5 is fixed on the body 1 below the supporting plate 3, the photovoltaic panel 50 is embedded in the photovoltaic panel bracket 5, and the cleaning component comprises a rotating block 6, a first scraping strip 60 and a second scraping strip 61; the rotating block 6 is rotatably arranged on the photovoltaic panel bracket 5, and the upper end of the photovoltaic panel 50, one end of the first scraping strip 60 is fixedly connected with one end of the rotating block 6 and positioned in the middle of the photovoltaic panel 50 to be attached to the photovoltaic panel 50, and the two second scraping strips 61 are respectively perpendicular to the first scraping strip 60 and are attached to the photovoltaic panel bracket 5; the driving assembly comprises a fixed column 30, a swivel 7, a torsion spring 70, fan blades 71 and a pulling component; the swivel 7 is rotatably arranged on the fixed column 30; the torsion spring 70 is positioned between the fixed column 30 and the swivel 7, one end of the torsion spring is fixedly connected with the fixed column 30, and the other end of the torsion spring is fixedly connected with the swivel 7; the two sides of the fan blades 71 are uniformly provided with flanges 76, the two fan blades 71 are 120 degrees and are respectively positioned in the middle positions of the two vertical rods of the support frame 11 and fixedly connected with the swivel 7; the pulling member comprises a pull rod 77, a connecting block 72, a slide column chute 73, a slide column 74 and a slide column spring 75; the pull rod 77 is fixed on the swivel 7 and forms 120 degrees with the two fan blades 71; the connecting block 72 is vertically and fixedly connected with the other end of the rotating block 6; the slide column chute 73 is located inside the connection block 72; the slide column 74 is slidably arranged in the slide column chute 73, and the end part is rotatably connected with the pull rod 77; a spool spring 75 is located between spool 74 and spool chute 73.
Working principle: the motor 12 drives the dust-proof plate 23 to rotate, so that the spiral strip 25 is in spiral fit with the spiral groove 29, the dust-proof plate 23 moves upwards until the dust-proof plate rotates to the uppermost end, and the sound amplifying cavity is completely leaked outside, so that an alarm can be sounded through the fit between the impeller 10 and the body 1; when the motor 12 stops working, the bottom end of the spiral strip 25 is slid to the bottom end of the inclined surface at the top end of the fixed cylinder 28 by the extrusion of the return spring 200, and then the spiral strip is drawn into the spiral groove 29 by the sliding groove 281 for homing, and the sound amplifying cavity is closed again.
The photovoltaic panel 50 converts light energy into electric energy to be stored in the storage battery 4, the storage battery 4 can be used for operating the motor 12, the motor 12 is also connected with an external power supply, when the power supply is blocked due to special environment, the electric energy in the storage battery 4 can be used for operating the motor 12, the fan blades 71 are blown by wind, the fan blades 71 rotate on the fixed column 30 through the rotating ring 7, the rotating ring 7 can drive the pull rod 77 to rotate, so that the end part of the sliding column 74 is driven to move, the sliding column 74 slides in the sliding column sliding groove 73, the tail end of the connecting block 72 is fixedly connected with the rotating block 6, the displacement of the upper end of the sliding column 74 is larger than the displacement of the lower end, the connecting block 72 can be driven to rotate, the rotating block 7 drives the first scraping bar 60 and the second scraping bar 61 to scrape dust impurities deposited on the photovoltaic panel 5.
Claims (9)
1. An alarm is characterized by comprising a body (1), an impeller (10), a support frame (11), a sound amplifying cavity (13) and a motor (12), wherein the impeller (10) is embedded in the body (1), the sound amplifying cavity (13) is circumferentially arranged on the side wall of the body (1) in cooperation with the impeller (10), the support frame (11) consists of a fixed plate and three vertical rods and is fixedly connected with the bottom of the body (1), and a rotating shaft of the motor (12) upwards penetrates through a central shaft of the body (1) and is connected with the impeller (10) through a shaft; the dustproof mechanism is matched with the sound amplifying cavity (13) and is arranged at the top of the body (1); the energy storage mechanism is arranged in the middle of the body (1); the dustproof mechanism comprises a fixed shaft (2) which is arranged on a rotating shaft of the impeller (10); a dust-proof plate (23) slidably mounted on the fixed shaft (2); the bottom of the dustproof plate (23) is covered outside the sound amplifying cavity (13); the limiting component is matched with the dust-proof plate (23) and is arranged at the top end of the fixed shaft (2); the upward moving component is matched with the dust-proof plate (23) and arranged at the top of the body (1),
the upward moving assembly comprises a sliding cylinder (24) which is positioned in the middle of a dust-proof plate (23), the top of the sliding cylinder is slidably arranged on a fixed shaft (2) between a first limiting plate (20) and a second limiting plate (21), and the inner surface of the sliding cylinder is provided with a spiral strip (25); the limiting cylinder (26) is arranged at the top of the sliding cylinder (24), and the top of the limiting cylinder (26) is contacted with the first limiting plate (20); the fixed cylinder (28) is positioned on the top surface of the body (1), and the outer surface of the fixed cylinder is provided with a spiral groove (29) matched with the spiral strip (25); and the return spring (200) is positioned between the first limiting plate (20) and the sliding cylinder (24).
2. An alarm as claimed in claim 1, wherein: the limiting assembly comprises a first limiting plate (20) which is arranged at the top of the fixed shaft (2); the second limiting plate (21) is arranged in the middle of the fixed shaft (2); the limiting block (22) is positioned on the side wall of the fixed shaft (2), the limiting chute (27) is positioned at the top end of the sliding cylinder (24) and is used for limiting the sliding chute of the limiting block (22).
3. An alarm as claimed in claim 1, wherein: the top surface of the dust-proof plate (23) is conical.
4. An alarm as claimed in claim 1, wherein: the height of the spiral strip (25) matched with the spiral groove (29) is larger than the peripheral height of the sound amplifying cavity on the body (1).
5. An alarm as claimed in claim 1, wherein: the top of the fixed cylinder (28) is an inclined plane, and a sliding groove (281) is formed between the spiral groove (29) and the top of the fixed cylinder (28).
6. An alarm as claimed in claim 1, wherein: the energy storage mechanism comprises a supporting plate (3) fixed at the middle position of a supporting frame (11), a storage battery (4) arranged on the supporting plate (3), a photovoltaic plate bracket (5) fixed on the supporting frame (11) below the supporting plate (3), a photovoltaic plate (50) embedded in the photovoltaic plate bracket (5), a cleaning assembly matched with the photovoltaic plate (5) and arranged at the bottom of the supporting plate (3), a driving assembly matched with the cleaning assembly and arranged below the supporting plate (3) and used for driving the cleaning assembly to rotate.
7. An alarm as defined in claim 6, wherein: the cleaning assembly comprises a rotating block (6) rotatably arranged on a photovoltaic panel bracket (5), a first scraping strip (60) fixedly connected with one end of the rotating block (6) and positioned in the middle of the photovoltaic panel (50) and attached to the photovoltaic panel (50), and two second scraping strips (61) respectively perpendicular to the first scraping strip (60) and attached to the photovoltaic panel bracket (5).
8. An alarm as defined in claim 6, wherein: the driving assembly comprises a fixed column (30), a swivel (7) and a driving mechanism, wherein the fixed column (30) is positioned at the bottom of the supporting plate (3); a torsion spring (70) positioned between the fixed column (30) and the swivel (7); the two fan blades (71) are respectively positioned between the two vertical rods of the supporting frame (11) and fixedly connected with the swivel (7), and flanges (76) are uniformly distributed on two sides of the fan blades (71); the pulling part is matched with the rotating block (6) and is arranged on the rotating ring (7).
9. An alarm as claimed in claim 8, wherein: the pulling part comprises a pull rod (77) which is fixed on the swivel (7); the connecting block (72) is fixedly connected with the other end of the rotating block (6); a slide column sliding groove (73) is positioned in the connecting block (72); the sliding column (74) is slidably arranged in the sliding column sliding groove (73), and the end part of the sliding column is rotationally connected with the pull rod (77); and a spool spring (75) positioned between the spool (74) and the spool chute (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110854160.2A CN113706798B (en) | 2021-07-28 | 2021-07-28 | Alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110854160.2A CN113706798B (en) | 2021-07-28 | 2021-07-28 | Alarm device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113706798A CN113706798A (en) | 2021-11-26 |
| CN113706798B true CN113706798B (en) | 2023-10-31 |
Family
ID=78650639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110854160.2A Active CN113706798B (en) | 2021-07-28 | 2021-07-28 | Alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113706798B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191316032A (en) * | 1912-07-12 | 1914-04-09 | Ets Bleriot L Sa | Improvements in or relating to Syrens and like Sound Producing Apparatus. |
| GB488530A (en) * | 1937-12-16 | 1938-07-08 | Helin Hagener Elek Zitaets Ind | Improvements in sirens |
| GB8717312D0 (en) * | 1987-07-22 | 1987-08-26 | Jerlin R R | Sound generating system |
| JP2006276455A (en) * | 2005-03-29 | 2006-10-12 | Hankoku Electric Co Ltd | Motor siren |
| CN202563882U (en) * | 2012-05-12 | 2012-11-28 | 初春晓 | Motor-type air-defense alarm having dust cover |
| CN203706660U (en) * | 2014-01-14 | 2014-07-09 | 台州市莱恩克警报器有限公司 | Alarm |
| CN104021630A (en) * | 2013-02-28 | 2014-09-03 | 西门子公司 | Alarm detector |
| CN205792431U (en) * | 2016-05-31 | 2016-12-07 | 重庆中节能三峰能源有限公司 | Photovoltaic panel cleaner unit |
| CN210381293U (en) * | 2019-09-19 | 2020-04-21 | 浙江声宝车业部件有限公司 | Dustproof air horn |
| CN213301959U (en) * | 2020-10-10 | 2021-05-28 | 万昌华盛(天津)科技有限公司 | Building site raise dust monitor of being convenient for equipment maintenance for environmental monitoring |
-
2021
- 2021-07-28 CN CN202110854160.2A patent/CN113706798B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191316032A (en) * | 1912-07-12 | 1914-04-09 | Ets Bleriot L Sa | Improvements in or relating to Syrens and like Sound Producing Apparatus. |
| GB488530A (en) * | 1937-12-16 | 1938-07-08 | Helin Hagener Elek Zitaets Ind | Improvements in sirens |
| GB8717312D0 (en) * | 1987-07-22 | 1987-08-26 | Jerlin R R | Sound generating system |
| JP2006276455A (en) * | 2005-03-29 | 2006-10-12 | Hankoku Electric Co Ltd | Motor siren |
| CN202563882U (en) * | 2012-05-12 | 2012-11-28 | 初春晓 | Motor-type air-defense alarm having dust cover |
| CN104021630A (en) * | 2013-02-28 | 2014-09-03 | 西门子公司 | Alarm detector |
| CN203706660U (en) * | 2014-01-14 | 2014-07-09 | 台州市莱恩克警报器有限公司 | Alarm |
| CN205792431U (en) * | 2016-05-31 | 2016-12-07 | 重庆中节能三峰能源有限公司 | Photovoltaic panel cleaner unit |
| CN210381293U (en) * | 2019-09-19 | 2020-04-21 | 浙江声宝车业部件有限公司 | Dustproof air horn |
| CN213301959U (en) * | 2020-10-10 | 2021-05-28 | 万昌华盛(天津)科技有限公司 | Building site raise dust monitor of being convenient for equipment maintenance for environmental monitoring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113706798A (en) | 2021-11-26 |
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