A voice-changing multifunctional alarm

Abstract

The present invention discloses a sound-changing multifunctional alarm, which relates to the technical field of alarms. The present invention comprises an outer ring wheel, an alarm is installed on the inner side of the outer ring wheel, an outer spoiler is provided in an annular shape inside the outer ring wheel, an inner ring wheel is rotatably installed inside the outer ring wheel, an inner spoiler is provided inside the inner ring wheel, and a fan is rotatably installed inside the outer ring wheel. In the present invention, air is taken into the inner and outer ring wheels by the rotation of the fan, and discharged through the inner and outer spoiler blocks. The airflow is broken up by the inner and outer spoiler blocks and converted into audible sound at the correct frequency. At the same time, the airflow is blocked by the inner and outer spoiler blocks, resulting in a larger pressure difference between the inner and outer ring wheels, thereby making the sound louder, thereby achieving the effect of alarming. When used in conjunction with the alarm, different alarm sounds can be generated, and the alarm can be applied to different environments.

Description

Technical Field

[0001] The present invention relates to the technical field of alarms, and in particular to a voice-changing multifunctional alarm. Background Art

[0002] An alarm is an electronic product that uses sound, light, air pressure, etc. to remind or warn us that we should take certain actions in order to prevent or prevent the consequences of an event. Alarms are often used in system failures, security precautions, transportation, medical rescue, emergency rescue, sensor detection and other fields, and are inseparable from social production. Among them, sound and light alarms are more common. Sound and light alarms mainly detect smoke and alarm.

[0003] The existing sound and light alarms have a single function and only have simple detection and alarm functions. When the indoor air flow rate is slow and the gas is easily deposited, the alarm is difficult to sound in time, and the detection safety is poor. At the same time, the existing sound and light alarms use sound effect chips to amplify through transistors and transformers to drive the speakers to emit sounds, which are mainly electronic sounds. The alarm sound is single and easily interfered by electromagnetic waves. It is not suitable for environments with strong magnetic fields. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of single alarm function, poor alarm detection effect, single alarm sound and unsuitability for environments with strong magnetic fields. The present invention provides a voice-changing multifunctional alarm.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A multifunctional alarm device with a sound changer comprises an outer ringing wheel, a bracket fixedly connected to the inner side of the outer ringing wheel, an alarm mounted on the outer side of the bracket, an outer spoiler block annularly arranged inside the outer ringing wheel, an inner ringing wheel rotatably mounted inside the outer ringing wheel, an inner spoiler block arranged inside the inner ringing wheel, a fan rotatably mounted inside the outer ringing wheel, and the fan driven by a motor;

[0007] The utility model also includes an air outlet opened on the back of the inner ringing wheel, and an inner plate for sealing the air outlet is installed in a rotating manner inside the inner ringing wheel.

[0008] Furthermore, a driving motor is installed on the back of the outer ringing wheel, and the output end of the driving motor is connected to the fan through a driving shaft. A key slot is provided on the outer side of the driving shaft, and a transmission cavity is provided on the inside of the inner plate. A transmission wheel is provided inside the transmission cavity and is sleeved on the outer side of the driving shaft. The transmission wheel can drive the inner plate to rotate. A sliding hole is provided inside the transmission wheel, and a key is slidably connected to the inside of the sliding hole. The key can be engaged in the key slot. A second electromagnet is provided on the inner wall of the sliding hole, and a tension spring is provided between the second electromagnet and the key. The second electromagnet is controlled by an alarm. When the alarm sounds, the second electromagnet is powered off.

[0009] Furthermore, a first slot is provided in a ring shape on the back of the inner ringing wheel, a slide is provided on the inner wall of the outer ringing wheel, a block is slidably connected inside the slide and can be engaged in the first slot, a first electromagnet is provided inside the slide, the first electromagnet controls the internal current through an external control system, a retaining spring is provided between the first electromagnet and the block, a transmission pawl is hinged on the inner wall of the transmission cavity, a torsion spring is provided at the hinge of the transmission pawl, and the transmission pawl can be engaged in the gear teeth on the outside of the transmission wheel.

[0010] Furthermore, four groups of slides are provided, and the four groups of slides are arranged in a ring shape on the inner wall of the outer ringing wheel.

[0011] Furthermore, a second card slot is provided inside the first card slot, and a shift bar capable of being plugged into the second card slot is provided at one end of the card block away from the slide.

[0012] Furthermore, the transmission fingers are provided in four groups and are arranged in a ring shape on the inner wall of the transmission cavity.

[0013] Furthermore, a storage cavity connected to the air outlet is opened inside the inner ringing wheel, and the inner plate is rotatably installed in the storage cavity. A baffle is provided inside the storage cavity, and the baffle is located on the other side of the rotation direction of the inner plate.

[0014] Furthermore, a mounting frame is provided on the outer side of the outer ringing wheel, and a mounting hole is provided in a ring shape on the outer side of the mounting frame.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention accelerates the flow of indoor gas by rotating the fan to inhale air, thereby improving indoor ventilation. At the same time, the leaked or generated smoke can easily pass through the smoke alarm, which is not only highly functional but also has accurate alarm detection results.

[0017] 2. The present invention allows air to enter the inner and outer ringing wheels through the rotation of the fan, and discharges it through the inner and outer spoiler blocks. The airflow is broken up by the inner and outer spoiler blocks and converted into audible sound at the correct frequency. At the same time, the airflow is blocked by the inner and outer spoiler blocks, resulting in a larger pressure difference between the inner and outer ringing wheels, which can make the sound louder, thereby achieving the effect of alarming. When used in conjunction with an alarm, different alarm sounds can be generated and can be applied to different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the interior of the outer ringing wheel of the present invention;

[0020] Figure 3 This invention Figure 2 A magnified schematic diagram of part A;

[0021] Figure 4 It is a schematic diagram of the card block of the present invention;

[0022] Figure 5 This is a schematic diagram of the positive axis side of the inner ringing wheel of the present invention;

[0023] Figure 6 This is a schematic diagram of the rear axle side of the inner ringing wheel of the present invention;

[0024] Figure 7 Schematic diagram of the air outlet of the present invention;

[0025] Figure 8 It is a schematic cross-sectional view of the receiving cavity of the present invention;

[0026] Figure 9 This invention Figure 8 A magnified schematic diagram of part B;

[0027] Figure 10 It is a schematic cross-sectional view of the transmission wheel of the present invention.

[0028] Figure numerals: 1. outer ringing wheel; 2. mounting frame; 3. outer spoiler; 4. bracket; 5. alarm; 6. inner ringing wheel; 7. inner spoiler; 8. fan; 9. first slot; 10. second slot; 11. slide; 12. block; 13. shift bar; 14. first electromagnet; 15. retaining spring; 16. air outlet; 17. storage chamber; 18. baffle; 19. inner plate; 20. drive shaft; 21. keyway; 22. transmission wheel; 23. transmission pawl; 24. key; 25. second electromagnet; 26. tension spring. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] like Figures 1-10 As shown, a sound-changing multifunctional alarm includes an outer ringing wheel 1, a bracket 4 is fixedly connected to the inner side of the outer ringing wheel 1, an alarm 5 is installed on the outer side of the bracket 4, an outer spoiler block 3 is annularly arranged inside the outer ringing wheel 1, an inner ringing wheel 6 is rotatably installed inside the outer ringing wheel 1, an inner spoiler block 7 is arranged inside the inner ringing wheel 6, and a fan 8 is rotatably installed inside the outer ringing wheel 1, and the fan 8 is driven by a motor;

[0031] The inner ringing wheel 6 further includes an air outlet 16 provided on the back side thereof, and an inner plate 19 for sealing the air outlet 16 is rotatably mounted inside the inner ringing wheel 6 .

[0032] The external ringing wheel 1 is installed at the ventilation position. When the device is in normal use, the motor is energized, and the motor drives the fan 8 to rotate. The fan 8 inhales air and discharges the air through the air outlet 16, which can improve the indoor ventilation effect and has strong functionality. At the same time, it can make the leaked gas or smoke pass through the alarm 5 quickly, thereby improving the response speed of the alarm 5.

[0033] When a fire or toxic gas leak occurs, the alarm 5 sounds an alarm. At this time, the inner plate 19 rotates, the inner plate 19 blocks the air outlet 16, and the fan 8 rotates to inhale air. When only the fan 8 rotates, the airflow enters the inner ringing wheel 6 and is discharged through the inner spoiler 7. The airflow is broken up by the inner spoiler 7 and converted into audible sound at the correct frequency. At the same time, the airflow is blocked by the inner spoiler 7, causing the pressure difference inside the inner ringing wheel 6 to increase, thereby making the sound louder, so as to achieve the effect of alarming. When used in conjunction with the alarm 5, different alarm sounds can be produced.

[0034] When the fan 8 and the inner ringing wheel 6 rotate at the same time, the airflow enters the outer ringing wheel 1 and is discharged through the outer spoiler block 3. The airflow is broken up by the outer spoiler block 3 and converted into audible sound at the correct frequency. At the same time, the airflow is blocked by the outer spoiler block 3, causing the internal pressure difference of the outer ringing wheel 1 to become larger, thereby making the sound louder to achieve the alarm effect. With the cooperation of the outer ringing wheel 1 and the inner ringing wheel 6, different alarm sounds can be generated, so that the device can be applied to different environments and the alarm effect is good.

[0035] like Figure 9 、 Figure 10As shown, in some embodiments, a driving motor is installed on the back of the outer ringing wheel 1, and the output end of the driving motor is connected to the fan 8 through the driving shaft 20. A key slot 21 is provided on the outside of the driving shaft 20, and a transmission cavity is provided inside the inner plate 19. A transmission wheel 22 is provided inside the transmission cavity and is sleeved on the outside of the driving shaft 20. The transmission wheel 22 can drive the inner plate 19 to rotate. A sliding hole is provided inside the transmission wheel 22, and a key 24 is slidably connected to the inside of the sliding hole. The key 24 can be snapped into the key slot 21. A second electromagnet 25 is provided on the inner wall of the sliding hole, and a tension spring 26 is provided between the second electromagnet 25 and the key 24. The second electromagnet 25 is controlled by the alarm 5. When the alarm 5 sounds, the second electromagnet 25 is powered off.

[0036] When the device is operating normally, the drive motor drives the fan 8 to rotate via the drive shaft 20;

[0037] When the alarm 5 sounds, the second electromagnet 25 is powered off. At this time, the tension spring 26 pushes the key 24 to press on the drive shaft 20. When the key slot 21 on the drive shaft 20 rotates to the position of the key 24, the tension spring 26 drives the key 24 to be engaged in the key slot 21. At this time, the drive shaft 20 drives the transmission wheel 22 to rotate through the key 24, and the transmission wheel 22 drives the inner plate 19 to rotate. The inner plate 19 blocks the air outlet 16. Only one set of driving mechanism is needed to drive the fan 8 and the inner plate 19 to rotate at the same time, and the structure is compact.

[0038] like Figure 4 、 Figure 9 As shown, in some embodiments, a first slot 9 is provided in an annular manner on the back of the inner ringing wheel 6, a slide 11 is provided on the inner wall of the outer ringing wheel 1, and a block 12 that can be engaged in the first slot 9 is slidably connected inside the slide 11. A first electromagnet 14 is provided inside the slide 11, and the first electromagnet 14 controls the internal current through an external control system. A retaining spring 15 is provided between the first electromagnet 14 and the retaining block 12, and a transmission claw 23 is hinged on the inner wall of the transmission cavity. A torsion spring is provided at the hinge of the transmission claw 23, and the transmission claw 23 can be engaged in the gear teeth on the outside of the transmission wheel 22.

[0039] When the inner ringing wheel 6 is not required to rotate, the external control system is pre-connected to the device and the current passing through the first electromagnet 14 is controlled to be minimum. At this time, the clamping block 12 is completely engaged in the first clamping groove 9 under the action of the retaining spring 15, and the clamping block 12 restricts the rotation of the inner ringing wheel 6. When the inner plate 19 closes the air outlet 16, the inner plate 19 rotates relative to the transmission wheel 22 under the restriction of the inner ringing wheel 6, and the transmission wheel 22 drives the transmission finger 23 to swing, and the transmission is stable.

[0040] When the inner ringing wheel 6 needs to rotate, the external control system is pre-connected with the device, and the first electromagnet 14 is controlled to pass the maximum current. The first electromagnet 14 drives the clamping block 12 completely away from the first clamping slot 9 through magnetic force. At this time, when the inner plate 19 closes the air outlet 16, the inner plate 19 drives the inner ringing wheel 6 to rotate, and the transmission is stable.

[0041] At the same time, through this design, the inner ringing wheel 6, the driving fan 8 and the inner plate 19 can be driven by the same group, and the structure is compact.

[0042] like Figure 2 As shown, in some embodiments, four groups of slides 11 are provided, and the four groups of slides 11 are arranged in a ring on the inner wall of the outer ringing wheel 1. Through the arrangement of the four groups of slides 11, the blocks 12 inside the four groups of slides 11 can simultaneously limit the rotation of the inner ringing wheel 6, and the control is more stable.

[0043] like Figure 4 As shown, in some embodiments, a second slot 10 is provided inside the first slot 9 , and a shift bar 13 that can be inserted into the second slot 10 is provided at one end of the block 12 away from the slide 11 .

[0044] When the current passing through the first electromagnet 14 is the maximum, the first electromagnet 14 drives the clamping block 12 completely away from the first clamping slot 9 through magnetic force, and at the same time the clamping block 12 drives the shifting bar 13 completely away from the first clamping slot 9. At this time, only the outer ringing wheel 1 makes a sound;

[0045] When a moderate current passes through the first electromagnet 14, the first electromagnet 14 drives the block 12 completely away from the first slot 9 through magnetic force. At the same time, the block 12 drives the pick 13 to be located in the first slot 9. When the inner ringing wheel 6 rotates relative to the outer ringing wheel 1, the pick 13 vibrates through the first slot 9 to produce sound, further increasing the types of alarm sounds of the device.

[0046] like Figure 9 As shown, in some embodiments, four groups of transmission fingers 23 are provided and arranged in a ring shape on the inner wall of the transmission cavity, so that the transmission is more stable.

[0047] like Figure 8 As shown, in some embodiments, a storage chamber 17 connected to the air outlet 16 is opened inside the inner ringing wheel 6, and an inner plate 19 is rotatably installed in the storage chamber 17. A baffle 18 is provided inside the storage chamber 17, and the baffle 18 is located on the other side of the rotation direction of the inner plate 19.

[0048] By setting up the storage cavity 17, the inner plate 19 can be stored in the storage cavity 17, which not only makes the structure compact but also has a better sealing effect. At the same time, when the inner plate 19 seals the air outlet 16, the inner plate 19 can drive the inner ringing wheel 6 to rotate under the restriction of the baffle 18, and the transmission is stable.

[0049] like Figure 1As shown, in some embodiments, a mounting bracket 2 is provided on the outside of the outer ringing wheel 1, and a mounting hole is opened in a ring shape on the outside of the mounting bracket 2, which makes installation more convenient. When the air outlet 16 is blocked, the air can still be discharged through the mounting bracket 2 without affecting the air circulation.

[0050] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sound-changing multifunctional alarm, comprising an external ringing wheel (1), characterized in that: The inner side of the outer ringing wheel (1) is fixedly connected to a bracket (4), the outer side of the bracket (4) is installed with an alarm (5), the inner ringing wheel (1) is provided with an outer spoiler block (3) in an annular shape, the inner ringing wheel (1) is provided with an inner ringing wheel (6), the inner ringing wheel (6) is provided with an inner spoiler block (7), the inner ringing wheel (1) is provided with a fan (8), and the fan (8) is driven by a motor; the outer ringing wheel (1) also includes an air outlet (16) provided on the back side of the inner ringing wheel (6), and the inner ringing wheel (6) is provided with an inner plate (19) for sealing the air outlet (16); the outer ringing wheel ( 1) is provided with a driving motor on the back side, the output end of the driving motor is connected to the fan (8) through a driving shaft (20), a key slot (21) is provided on the outside of the driving shaft (20), a transmission cavity is provided inside the inner plate (19), a transmission wheel (22) is provided inside the transmission cavity and is sleeved on the outside of the driving shaft (20), the transmission wheel (22) can drive the inner plate (19) to rotate, a sliding hole is provided inside the transmission wheel (22), a key (24) is slidably connected inside the sliding hole, the key (24) can be clamped in the key slot (21), and a second electromagnet (2) is provided on the inner wall of the sliding hole. 5), a tension spring (26) is provided between the second electromagnet (25) and the card key (24), and the second electromagnet (25) is controlled by the alarm (5). When the alarm (5) sounds, the second electromagnet (25) is powered off; a first card slot (9) is provided in an annular manner on the back of the inner ringing wheel (6), and a slide (11) is provided on the inner wall of the outer ringing wheel (1), and a card block (12) capable of being carded in the first card slot (9) is provided inside the slide (11), and a first electromagnet (14) is provided inside the slide (11), and the first electromagnet (14) controls the internal The current size is determined by the following steps: a retaining spring (15) is provided between the first electromagnet (14) and the clamping block (12); a transmission pawl (23) is hingedly connected to the inner wall of the transmission cavity; a torsion spring is provided at the hinge of the transmission pawl (23); the transmission pawl (23) can be clamped in the gear teeth on the outer side of the transmission wheel (22); four groups of slides (11) are provided, and the four groups of slides (11) are annularly arranged on the inner wall of the outer ringing wheel (1); a second slot (10) is provided inside the first clamping slot (9); and a strip (13) capable of being inserted into the second slot (10) is provided at one end of the clamping block (12) away from the slide (11).

2. A voice-changing multifunctional alarm according to claim 1, characterized in that: The transmission fingers (23) are provided in four groups and are arranged in an annular shape on the inner wall of the transmission cavity.

3. A voice-changing multifunctional alarm according to any one of claims 1-2, characterized in that: The inner ringing wheel (6) is provided with a receiving chamber (17) in communication with the air outlet (16), the inner plate (19) is rotatably mounted in the receiving chamber (17), and a baffle (18) is provided inside the receiving chamber (17), and the baffle (18) is located on the other side of the rotation direction of the inner plate (19).

4. A voice-changing multifunctional alarm according to any one of claims 1-2, characterized in that: A mounting frame (2) is provided on the outer side of the outer ringing wheel (1), and a mounting hole is provided in a ring shape on the outer side of the mounting frame (2).

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