Earthquake early warning audible and visual alarm with explosion-proof lighting structure

Abstract

The invention belongs to the technical field of earthquake early warning, and discloses an earthquake early warning audible and visual alarm with an anti-explosion lighting structure, which comprises a shell and an energy storage assembly mounted at the upper end, a lighting lamp is mounted at the front end of the shell, warning lamps are connected to two sides of the shell, a transmission shaft is arranged in the middle of the shell, and a swing rod is connected to the rear end of the transmission shaft. A ratchet wheel assembly is connected between the swing rod and the transmission shaft, an alarm whistle is connected to the front end of the shell, a fixing plate is connected to the inner wall of the shell, a wind wheel is arranged in the fixing plate, and a gear transmission assembly is arranged between the wind wheel and the transmission shaft. The earthquake early warning audible and visual alarm with the anti-explosion lighting structure responds to earthquake longitudinal waves and earthquake transverse waves at the same time, swing rod detection and pendulum bob detection structures are designed to swing and drive the transmission shaft to rotate to give an alarm when earthquake waves arrive, a dual trigger mechanism is achieved, early warning accuracy is improved, and the earthquake early warning effect is improved. And after an earthquake occurs, sound-light alarm is simultaneously generated, so that a multi-dimensional warning signal is formed.

Description

Technical Field

[0001] The present invention relates to the technical field of earthquake early warning, and particularly to an acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure. Background Art

[0002] An earthquake is a crustal vibration phenomenon caused by the sudden release of internal energy of the earth. Its essence is the product of the movement of the earth's plates. At the same time, it may also be induced by factors such as volcanic activities and human engineering. Most earthquakes are caused by tectonic movements, and earthquakes of a larger magnitude have greater destructive power. In order to reduce casualties during an earthquake, an earthquake early warning alarm can be installed to give an acoustic-optic alarm when an earthquake occurs to remind people to escape from the dangerous area.

[0003] However, when the existing acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure is in use, there are still certain problems:

[0004] The existing snap-on earthquake-sensing acoustic-optic alarm such as the one with Chinese Patent Application No. CN201720615745.8 includes a bottom plate. On both sides of the surface of the bottom plate, there are first bosses. On the surface of the first bosses, there are card slots. A card plate is snap-fitted in the card slots. At the top of the card plate, there is a second boss. On the side of the second boss, there is a mounting plate. On the side of the mounting plate, there is an acoustic-optic alarm structure;

[0005] Most of the existing earthquake alarms use sensors to detect earthquakes, but the sensors are relatively less reliable, require complex program control, and most sensors use vibration detection to judge earthquakes, which are prone to false alarms due to external factors.

[0006] In view of the above problems, an innovative design is carried out on the basis of the original acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure. Summary of the Invention

[0007] The purpose of the present invention is to provide an acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure to solve the problems in the above-mentioned background art that the existing earthquake alarms use sensors for detection and complex program control, with relatively low reliability and prone to false alarms due to external factors.

[0008] To achieve the above purpose, the present invention provides the following technical solution: An acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure includes a housing and an energy storage component installed at the upper end. A lighting lamp is installed at the front end of the housing, and alarm lamps are connected to both sides of the housing:

[0009] A transmission shaft is arranged in the middle of the housing, and a swing rod is connected to the rear end of the transmission shaft. A ratchet assembly is connected between the swing rod and the transmission shaft;

[0010] An alarm whistle is connected to the front end of the housing. A fixing plate is connected to the inner wall of the housing. A wind wheel is arranged inside the fixing plate. A gear transmission assembly is arranged between the wind wheel and the transmission shaft. When an earthquake occurs, the wind wheel is driven to rotate to generate an air flow to make the alarm whistle emit a sound.

[0011] A positioning sleeve is arranged at the front end of the transmission shaft. A touch switch is arranged inside the positioning sleeve. A transmission assembly is arranged inside the positioning sleeve for squeezing the touch switch after the transmission shaft rotates to realize the power supply control of the lighting and the alarm lamp.

[0012] Preferably, a protective cover is arranged outside the lighting lamp, and the protective cover is a wire mesh cover.

[0013] Adopting the above technical solution, the lighting lamp can be protected through the design of the protective cover to avoid damage caused by impact.

[0014] Preferably, movable grooves are opened on both sides of the housing. The outer end of the swing rod penetrates through the movable groove, and a counterweight is connected to the end of the swing rod.

[0015] Adopting the above technical solution, through the design of the swing rod and the counterweight, it can swing up and down when the longitudinal wave arrives at the initial stage of the earthquake.

[0016] Preferably, the transmission shaft is rotatably connected to the swing rod, and the transmission shaft and the swing rod are connected by a ratchet assembly to form a one-way transmission structure. Two groups of swing rods and ratchet assemblies are arranged, and the swing rods are distributed on the left and right sides of the housing. The two groups of swing rods are arranged in a front-back staggered manner, and the two groups of ratchet assemblies are designed with the same direction.

[0017] Adopting the above technical solution, through the design of the ratchet assembly, the two groups of swing rods can drive the transmission shaft to rotate continuously in one direction when swinging up and down continuously.

[0018] Preferably, a diversion groove is opened on the inner wall of the fixing plate. The wind wheel is rotatably connected to the inner wall of the diversion groove. The shape of the inner wall of the diversion groove is adapted to the wind wheel. A conduit is connected to the upper end of the diversion groove, and the end of the conduit is conductively connected to the alarm whistle. The left end of the fixing plate extends outside the housing, and the left side of the diversion groove is conductively connected to the outside of the housing.

[0019] Adopting the above technical solution, the wind wheel is driven to rotate through the transmission shaft and the gear structure, and the generated air flow flows to the alarm whistle to give an alarm reminder.

[0020] Preferably, the middle shaft of the wind wheel extends outside the fixing plate, and a second gear is connected to the rear end of the middle shaft of the wind wheel. A first gear is connected to the front end of the transmission shaft, and the first gear meshes with the second gear.

[0021] Adopting the above technical solution, through the cooperation of the first gear and the second gear, the power transmission between the transmission shaft and the wind wheel is realized.

[0022] Preferably, a screw rod is threadedly connected to the rear end of the positioning sleeve, and a transmission rod is fixed to the rear end of the screw rod. The transmission rod is designed with a square structure, and the rear end of the transmission rod penetrates through the inside of the transmission shaft to form a sliding structure. A compression spring is sleeved outside the screw rod, and the front and rear ends of the compression spring are respectively connected to the screw rod and the inner wall of the positioning sleeve.

[0023] With the above technical solution, when the screw rod, the transmission rod and the transmission shaft cooperate to rotate, the screw rod can be driven to move back and forth. After the screw rod is separated from the connection of the positioning sleeve, the compression spring pushes it to press the touch switch, controlling the power conduction of the alarm lamp and the lighting lamp.

[0024] Preferably, a positioning frame is fixed to the lower end of the housing, and a pendulum passes through the middle of the positioning frame. An active ball is fixed to the upper end of the pendulum. Two limiting rings are arranged in the middle of the positioning frame, and the limiting rings are symmetrically distributed on the upper and lower sides of the active ball. The limiting rings are in contact with the outer wall of the active ball, and a graphite layer is provided on the outer wall of the limiting ring.

[0025] With the above technical solution, the active ball and the pendulum are supported by the positioning frame and the limiting rings. The resistance between the limiting rings and the active ball is small, and the pendulum can be driven to swing when the horizontal seismic wave arrives.

[0026] Preferably, a support block is fixed inside the housing. An activity groove is opened inside the support block. A transmission frame is arranged inside the activity groove. The transmission frame is designed as a hollow rectangle, and transmission racks are connected to the inner walls on the left and right sides of the transmission frame. A half gear is arranged inside the transmission frame. The transmission shaft penetrates through the middle of the moving frame and is fixed to the half gear. The half gear and the transmission rack form a meshing structure.

[0027] With the above technical solution, through the cooperation between the transmission rack connected to the inner wall of the transmission frame and the half gear, the half gear and the transmission shaft can be driven to rotate unidirectionally when the transmission frame moves up and down.

[0028] Preferably, the transmission frame is slidably connected to the inner wall of the activity groove. A return spring is fixed to the top end of the activity groove, and the lower end of the return spring is fixed to the transmission frame. A steel wire rope is connected to the lower end of the transmission frame. A limiting disk is fixed to the lower end of the housing. A guiding ring is connected to the middle of the limiting disk, and the lower end of the steel wire rope penetrates through the guiding ring and is fixed to the upper end of the pendulum.

[0029] With the above technical solution, the swinging of the pendulum can drive the steel wire rope to move synchronously. The guiding ring can limit the upper end of the steel wire rope to move in the vertical direction, thereby providing power for the downward movement of the transmission frame. When the pendulum swings back, the return spring can be used to pull the transmission frame to reset upward.

[0030] Compared with the prior art, the beneficial effect of the present invention is: the acoustic and optical alarm for earthquake early warning with an explosion-proof lighting structure.

[0031] 1. It can respond to both the longitudinal wave and the transverse wave of an earthquake simultaneously. By designing the pendulum rod detection and pendulum bob detection structures, both can swing when the seismic wave arrives and drive the transmission shaft to rotate to trigger an alarm, realizing a dual-trigger mechanism, improving the early warning accuracy, and simultaneously giving out audible and visual alarms after an earthquake occurs, forming a multi-dimensional warning signal.

[0032] 2. By designing an emergency lighting structure, it supports continuous operation after a power failure, meets the lighting needs in emergency scenarios, designs a wire mesh cover to protect the lighting lamp, which has both explosion-proof and impact-resistant properties, provides emergency lighting in a dark environment to assist in escape, and the overall device uses physical structure detection, is not prone to false alarms, and is not prone to failures, with higher reliability. Brief Description of the Drawings

[0033] Figure 1 Schematic diagram of the overall structure of the present invention;

[0034] Figure 2 Schematic diagram of the structure of the present invention from another perspective;

[0035] Figure 3 Schematic diagram of the housing and pendulum rod structure of the present invention;

[0036] Figure 4 Schematic diagram of the transmission shaft and ratchet assembly of the present invention;

[0037] Figure 5 Schematic diagram of the positioning frame and movable ball structure of the present invention;

[0038] Figure 6 Schematic diagram of the transmission shaft and pendulum rod structure of the present invention;

[0039] Figure 7 Schematic diagram of the movable ball and pendulum bob structure of the present invention;

[0040] Figure 8 Schematic diagram of the transmission shaft and semi-gear structure of the present invention;

[0041] Figure 9 Schematic diagram of the driving gear and driven gear structure of the present invention;

[0042] Figure 10 Schematic diagram of the fixed plate and impeller structure of the present invention;

[0043] Figure 11 Schematic diagram of the screw and positioning sleeve structure of the present invention.

[0044] In the figure: 1. Housing; 2. Energy storage component; 3. Lighting lamp; 4. Alarm lamp; 5. Transmission shaft; 6. Swing rod; 7. Ratchet assembly; 8. Alarm whistle; 9. Duct; 10. Fixed plate; 11. Wind wheel; 12. First gear; 13. Second gear; 14. Positioning sleeve; 15. Touch switch; 16. Screw; 17. Touch spring; 18. Transmission rod; 19. Positioning frame; 20. Movable ball; 21. Pendulum; 22. Steel wire rope; 23. Support block; 24. Transmission frame; 25. Half gear; 26. Return spring; 27. Limit disc; 28. Protective cover. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] Please refer to Figures 1-11 , the present invention provides a technical solution: an acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure, including a housing 1 and an energy storage component 2 installed at the upper end. A lighting lamp 3 is installed at the front end of the housing 1, and alarm lamps 4 are connected to both sides of the housing 1. A protective cover 28 is arranged outside the lighting lamp 3, and the protective cover 28 is a wire mesh cover; after the device is installed, it is connected to a 220V power supply to ensure that the energy storage component 2 has sufficient power. The energy storage component 2 can select a 12V battery or a 18650 battery pack. The alarm lamp 4 is composed of a red and blue lamp group, and the red and blue lamp beads are staggered. The built-in lamp control module can realize the alternate flashing of the red and blue lamp beads; a positioning sleeve 14 is arranged at the front end of the transmission shaft 5, and a touch switch 15 is arranged inside the positioning sleeve 14; the energy storage component 2 is respectively connected to the alarm lamp 4 and the lighting lamp 3 by wires and is controlled by the touch switch 15. When the touch switch 15 is pressed, the energy storage component 2 supplies power to the alarm lamp 4 and the lighting lamp 3 to achieve lighting and earthquake alarm.

[0047] A transmission shaft 5 is arranged in the middle of the housing 1, and a swing rod 6 is connected to the rear end of the transmission shaft 5. A ratchet assembly 7 is connected between the swing rod 6 and the transmission shaft 5. Activity slots are formed on both sides of the housing 1. The outer end of the swing rod 6 penetrates through the activity slots. Rubber cushion blocks are arranged at the upper and lower ends of the activity slots to achieve a shock absorption effect and prevent strong impacts from occurring when the swing rod 6 swings up and down. A counterweight block is connected to the end of the swing rod 6. When an earthquake occurs, the building is first affected by the longitudinal wave and will vibrate in the vertical direction, which can drive the swing rod 6 to rotate around the transmission shaft 5 as the axis. The design of the counterweight block can increase the inertial force generated by the rotation of the swing rod 6. The transmission shaft 5 is rotatably connected to the swing rod 6, and the transmission shaft 5 and the swing rod 6 are connected by the ratchet assembly 7 to form a one-way transmission structure. Two sets of swing rods 6 and ratchet assemblies 7 are provided, and the swing rods 6 are distributed on the left and right sides of the housing 1. The two sets of swing rods 6 are arranged in a front-back dislocation manner, and the two sets of ratchet assemblies 7 are designed with the same direction. By using the combination of the two sets of ratchet assemblies 7, uninterrupted rotational transmission of the transmission shaft 5 can be achieved when the swing rod 6 swings continuously. The rotation directions of the upward swing of a single set of swing rods 6 and the downward swing of the other set of swing rods 6 are the same. Therefore, two sets of ratchet assemblies 7 with the same direction are set, and the transmission shaft 5 can be driven to rotate when the two sets of swing rods 6 swing up and down, so as to give a continuous alarm.

[0048] An alarm whistle 8 is connected to the front end of the housing 1. The rear end of the alarm whistle 8 is embedded inside the housing 1. When there is air flow inside, it can emit a sound to achieve an alarm. A fixing plate 10 is connected to the inner wall of the housing 1. An air wheel 11 is arranged inside the fixing plate 10. A gear transmission assembly is arranged between the air wheel 11 and the transmission shaft 5. When an earthquake occurs, it drives the air wheel 11 to rotate to generate air flow to make the alarm whistle 8 emit a sound. The central axis of the air wheel 11 extends outside the fixing plate 10, and a second gear 13 is connected to the rear end of the central axis of the air wheel 11. A first gear 12 is connected to the front end of the transmission shaft 5, and the first gear 12 meshes with the second gear 13. When the swing rod 6 drives the transmission shaft 5 to rotate, it drives the first gear 12 to rotate synchronously. The first gear 12 drives the second gear 13 to rotate, providing rotational power for the air wheel 11. A flow guiding groove is formed on the inner wall of the fixing plate 10. The air wheel 11 is rotatably connected to the inner wall of the flow guiding groove. The shape of the inner wall of the flow guiding groove is adapted to the air wheel 11. A conduit 9 is connected to the upper end of the flow guiding groove, and the end of the conduit 9 is communicated with the alarm whistle 8. The left end of the fixing plate 10 extends outside the housing 1, and the left side of the flow guiding groove is communicated with the outside of the housing 1. The air wheel 11 and the second gear 13 are connected and can rotate synchronously. The air wheel 11 rotates to suck the external air flow into the flow guiding groove and flows to the alarm whistle 8 through the conduit 9, making the alarm whistle 8 emit a sound. A filter screen is arranged at the place where the flow guiding groove is communicated with the outside of the housing 1 to prevent mosquitoes, dust, etc. from entering the inside of the flow guiding groove and keep the flow guiding groove unobstructed.

[0049] A transmission component is arranged inside the positioning sleeve 14 and is used to control the power supply of the lighting and the warning lamp 4 by squeezing and pressing the touch switch 15 after the transmission shaft 5 rotates; a screw rod 16 is threadedly connected to the rear end of the positioning sleeve 14, and a transmission rod 18 is fixed to the rear end of the screw rod 16. The transmission rod 18 is designed with a square structure. The design of the square transmission rod 18 enables rotational transmission between the transmission rod 18 and the transmission shaft 5 during the forward and backward movement. The rear end of the transmission rod 18 penetrates through the inside of the transmission shaft 5 to form a sliding structure. A touch spring 17 is sleeved outside the screw rod 16, and the front and rear ends of the touch spring 17 are respectively connected to the screw rod 16 and the inner wall of the positioning sleeve 14; the rear end of the transmission shaft 5 penetrates through the fixing plate 10 and is connected to the transmission rod 18, and the transmission shaft 5 is rotatably connected to the fixing plate 10, and a sealing structure is arranged at the connection. After an earthquake occurs, the swing rod 6 drives the transmission shaft 5 to rotate. The rotation of the transmission shaft 5 drives the transmission rod 18 and the screw rod 16 to rotate synchronously. While the screw rod 16 rotates, it moves forward, and after rotating a certain angle, the screw rod 16 disengages from the threaded connection with the positioning sleeve 14. At this time, the touch spring 17 pushes the screw rod 16 forward to press the touch switch 15, so that the energy storage component 2 supplies power to the warning lamp 4 and the lighting lamp 3. Because if the destructive force is strong after an earthquake, it will cause a power outage inside the building, and the dark environment is not conducive to escape. The lighting lamp 3 can provide a certain amount of lighting to help quickly escape from the inside of the building.

[0050] A positioning frame 19 is fixed to the lower end of the housing 1, and a pendulum bob 21 passes through the middle of the positioning frame 19. An active ball 20 is fixed to the upper end of the pendulum bob 21. Two sets of limiting rings are arranged in the middle of the positioning frame 19, and the limiting rings are symmetrically distributed on the upper and lower sides of the active ball 20. The limiting rings are in contact with the outer wall of the active ball 20, and a graphite layer is provided on the outer wall of the limiting ring. The cooperation between the positioning frame 19 and the limiting rings can limit the up and down positions of the active ball 20, so that the active ball 20 can only rotate at a certain angle. To avoid affecting the accuracy of earthquake detection, the design of the graphite layer is used to lubricate between the active ball 20 and the limiting rings, reduce the swinging resistance of the pendulum bob 21, and avoid affecting the accuracy of earthquake detection. A supporting block 23 is fixed inside the housing 1. An activity groove is formed inside the supporting block 23. A transmission frame 24 is arranged inside the activity groove. The transmission frame 24 is designed as a hollow rectangle, and transmission racks are connected to the inner walls on the left and right sides of the transmission frame 24. A half gear 25 is arranged inside the transmission frame 24. A transmission shaft 5 passes through the middle of the transmission frame 24 and is fixed to the half gear 25. The half gear 25 and the transmission rack form an engaging structure. The transmission frame 24 is slidably connected to the inner wall of the activity groove, and a return spring 26 is fixed to the top of the activity groove. The lower end of the return spring 26 is fixed to the transmission frame 24. A steel wire rope 22 is connected to the lower end of the transmission frame 24. The diameter of the steel wire rope 22 is 3 - 5 mm. A limiting disc 27 is fixed to the lower end of the housing 1. A guiding ring is connected to the middle of the limiting disc 27. The inner diameter of the guiding ring is 6 - 8 mm. The inner wall of the guiding ring is designed with a smooth chamfer, and the lower end of the steel wire rope 22 passes through the guiding ring and is fixed to the upper end of the pendulum bob 21. When the earthquake shear wave arrives, the seismic wave will drive the pendulum bob 21 to swing. When the pendulum bob 21 swings, it tilts and pulls the upper connected steel wire rope 22 to move. The steel wire rope 22 is restricted by the limiting disc 27 and the guiding ring in the middle thereof, and moves in the vertical direction at the upper end and pulls the transmission frame 24 to move downward, and the cooperation between the transmission rack and the half gear 25 is used to further provide power for the rotation of the transmission shaft 5.

[0051] When the transmission frame 24 moves downward, the transmission rack on one inner wall drives the half gear 25 to rotate, and the half gear 25 is used to drive the transmission shaft 5 to rotate synchronously, which is consistent with the rotation direction of the transmission shaft 5 driven by the swing rod 6. When one side transmission rack disengages from the half gear 25 when the transmission frame 24 moves downward, the other side transmission rack cooperates with the half gear 25 to ensure that the other side transmission rack can drive the half gear 25 to rotate again when the transmission frame 24 returns upward, and the half gear 25 is switched to cooperate with another set of transmission racks again after the return to realize the continuous rotational power transmission of the transmission shaft 5. When the earthquake shear wave arrives, the pendulum bob 21 will swing back and forth. When swinging back to the middle, the return spring 26 provides power for the transmission frame 24 to return upward. The pendulum bob 21 is driven by the earthquake shear wave, and the swing rod 6 is driven by the primary longitudinal wave of the earthquake. Because the arrival times of the longitudinal wave and the shear wave are different, they will not interfere with each other.

[0052] Embodiment 2. The difference between this embodiment and Embodiment 1 is that different transmission control structures are adopted for the power supply conduction of the lighting lamp 3 and the alarm lamp 4. The screw rod 16 is replaced with a square transmission pressure rod, and the transmission pressure rod is slidably connected to the positioning sleeve 14. The rear end of the positioning sleeve 14 is embedded in the transmission shaft 5 and is threadedly connected thereto. After an earthquake occurs, the transmission shaft 5 rotates, driving the transmission pressure rod to move forward. When the front end of the transmission pressure rod touches the touch switch 15, the threaded connection between the transmission pressure rod and the transmission shaft 5 is disengaged. This embodiment has a relatively simple structure compared to Embodiment 1, but has high requirements for thread accuracy, and there is still mutual friction after the threaded connection between the transmission pressure rod and the transmission shaft 5 is disengaged, which has a certain impact on the smooth rotation of the transmission shaft 5.

[0053] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An acoustic-optical alarm for earthquake early warning with an explosion-proof lighting structure, comprising a housing (1) and an energy storage component (2) installed at the upper end. A lighting lamp (3) is installed at the front end of the housing (1), and alarm lamps (4) are connected to both sides of the housing (1). It is characterized in that: A transmission shaft (5) is arranged in the middle of the housing (1), and a swing rod (6) is connected to the rear end of the transmission shaft (5). A ratchet assembly (7) is connected between the swing rod (6) and the transmission shaft (5); An alarm whistle (8) is connected to the front end of the housing (1). A fixed plate (10) is connected to the inner wall of the housing (1). A wind wheel (11) is arranged inside the fixed plate (10). A gear transmission assembly is arranged between the wind wheel (11) and the transmission shaft (5). When an earthquake occurs, the wind wheel (11) is driven to rotate to generate air flow to make the alarm whistle (8) emit sound; A positioning sleeve (14) is arranged at the front end of the transmission shaft (5). A touch switch (15) is arranged inside the positioning sleeve (14). A transmission assembly is arranged inside the positioning sleeve (14) for squeezing the touch switch (15) after the transmission shaft (5) rotates to realize the power supply control of the lighting lamp and the alarm lamp (4).

2. The acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure according to claim 1, wherein: A protective cover (28) is arranged outside the lighting lamp (3), and the protective cover (28) is a wire mesh cover.

3. The acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure according to claim 1, characterized in that: Activity grooves are opened on both sides of the housing (1). The outer end of the swing rod (6) penetrates through the activity grooves, and a counterweight block is connected to the end of the swing rod (6).

4. The acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure according to claim 3, characterized in that: The transmission shaft (5) is rotatably connected to the swing rod (6), and the transmission shaft (5) and the swing rod (6) are connected by a ratchet assembly (7) to form a one-way transmission structure. Two groups of the swing rod (6) and the ratchet assembly (7) are arranged, and the swing rod (6) is distributed on the left and right sides of the housing (1). The two groups of swing rods (6) are arranged in a front-back staggered manner, and the two groups of the ratchet assemblies (7) are designed with the same direction.

5. The acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure according to claim 1, characterized in that: Flow guide grooves are opened on the inner wall of the fixed plate (10). The wind wheel (11) is rotatably connected to the inner wall of the flow guide groove. The shape of the inner wall of the flow guide groove is adapted to the wind wheel (11). A conduit (9) is connected to the upper end of the flow guide groove, and the end of the conduit (9) is conductively connected to the alarm whistle (8). The left end of the fixed plate (10) extends outside the housing (1), and the left side of the flow guide groove is conductively connected to the outside of the housing (1).

6. The acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure according to claim 5, characterized in that: The middle shaft of the wind wheel (11) extends outside the fixed plate (10), and a second gear (13) is connected to the rear end of the middle shaft of the wind wheel (11). A first gear (12) is connected to the front end of the transmission shaft (5), and the first gear (12) meshes with the second gear (13).

7. An acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure according to claim 1, characterized in that: A screw rod (16) is threadedly connected to the rear end of the positioning sleeve (14), and a transmission rod (18) is fixed to the rear end of the screw rod (16). The transmission rod (18) is designed with a square structure, and the rear end of the transmission rod (18) penetrates through the inside of the transmission shaft (5) to form a sliding structure. A touch pressure spring (17) is sleeved outside the screw rod (16), and the front and rear ends of the touch pressure spring (17) are respectively connected to the screw rod (16) and the inner wall of the positioning sleeve (14).

8. An audible and visual alarm for earthquake early warning with an explosion-proof lighting structure according to claim 1, characterized in that: A positioning frame (19) is fixed to the lower end of the housing (1), and a pendulum (21) passes through the middle of the positioning frame (19). An active ball (20) is fixed to the upper end of the pendulum (21). Two groups of limiting rings are arranged in the middle of the positioning frame (19), and the limiting rings are symmetrically distributed on the upper and lower sides of the active ball (20). The limiting rings are in contact with the outer wall of the active ball (20), and a graphite layer is provided on the outer wall of the limiting ring.

9. An acoustic-optic alarm for earthquake early warning with an explosion-proof lighting structure according to claim 8, characterized in that: A support block (23) is fixed inside the housing (1). An activity groove is formed inside the support block (23), and a transmission frame (24) is arranged inside the activity groove. The transmission frame (24) is designed in a hollow rectangle, and transmission racks are connected to the inner walls on the left and right sides of the transmission frame (24). A half gear (25) is arranged inside the transmission frame (24). A transmission shaft (5) passes through the middle of the transmission frame (24) and is fixed to the half gear (25). The half gear (25) and the transmission racks form an engaging structure.

10. An acoustic-optical alarm for earthquake early warning with an explosion-proof lighting structure according to claim 9, characterized in that: The transmission frame (24) is slidably connected to the inner wall of the activity groove. A return spring (26) is fixed to the top of the activity groove, and the lower end of the return spring (26) is fixed to the transmission frame (24). A steel wire rope (22) is connected to the lower end of the transmission frame (24). A limiting disc (27) is fixed to the lower end of the housing (1). A guiding ring is connected to the middle of the limiting disc (27), and the lower end of the steel wire rope (22) passes through the guiding ring and is fixed to the upper end of the pendulum (21).

Images