Emergency alarm device for scenic spot

Abstract

The utility model provides a scenic spot emergency alarm device. The scenic spot emergency alarm device comprises a stand column and a mounting box arranged at the top of the stand column. According to the scenic spot emergency alarm device, a driving shaft is rotated, meanwhile, a turbofan and a fixing sleeve can be driven to rotate in the axial direction of a rotating shaft through chain wheel and chain transmission and two-stage gear transmission, and then a boss is clamped into the inner side of a clamping groove under the elastic acting force of a spring; the fixing sleeve can drive the inner cover to rotate by 1 / 16 circle around the axial direction of the outer cover in the process of rotating by one circle, so that the first air outlet holes and the second air outlet holes can be continuously and alternately changed according to the matching of eight holes and four holes by adopting the transmission mode; at the moment, air on the inner side of the outer cover can be compressed through high-speed rotation of the turbofan and is exhausted through the air outlet holes, then treble and bass are formed under the alternate change of the number of the exhaust hole positions, the device can manually give an alarm for reminding, extra electric wires do not need to be erected, and the installation and maintenance cost of the device is low.

Description

Technical Field

[0001] This utility model relates to the field of emergency alarm technology for scenic areas, and specifically discloses an emergency alarm device for scenic areas. Background Technology

[0002] Install one-button emergency call alarm devices at various important locations within the scenic area (entrances and exits, wading areas, pavilions, steep slopes) to enable emergency calls in case of emergencies. Existing emergency alarm devices require power to function and cannot provide alarms when the power is off. In addition, emergency alarm devices require the installation of power lines at corresponding locations within the scenic area, resulting in high installation and maintenance costs. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a scenic area emergency alarm device, including a column, a mounting box set on the top of the column, and a protective plate fixedly installed on one side of the mounting box. An outer cover is fixedly installed on the side of the mounting box away from the protective plate. A drive shaft is rotatably connected inside the column, and a drive mechanism is fixedly installed on the outer side of the drive shaft. An air inlet groove is opened inside the mounting box, and a first support and a second support are fixedly installed on the inner side of the mounting box. A rotating shaft located inside the outer cover is rotatably connected inside the mounting box. A first transmission shaft is rotatably connected inside the first support, and a first large gear is fixedly fitted on the outer side of one end of the first transmission shaft. The support is internally rotatably connected to a second drive shaft. A first small gear that meshes with the outer edge of a first large gear is fixedly fitted on the outside of the second drive shaft. A second large gear is fixedly fitted on the outer side of one end of the second drive shaft that extends beyond the first small gear. A second small gear that meshes with the outer edge of the second large gear is fixedly fitted on the outer side of one end of the shaft that extends into the mounting box. A turbofan located inside the outer cover is fixedly fitted on the outer side of one end of the shaft that extends beyond the mounting box. A fixing sleeve is fixedly fitted on the outer side of one end of the shaft that extends beyond the turbofan. A limiting ring located outside the fixing sleeve is fixedly installed inside the outer cover by bolts. An inner cover located on one side of the limiting ring is rotatably connected to the inner side of the outer cover.

[0004] The outer cover has twelve first air vents inside, and the inner cover has eight annularly spaced second air vents inside. The fixing sleeve has a push block located inside the limiting ring. One side of the push block has a boss, and the outer side of the push block has symmetrically distributed fixing blocks. One side of the fixing block has a fixing rod that is movably fitted inside the fixing sleeve. The outer side of the fixing rod has a spring located between the fixing sleeve and the fixing block. The inner side of the limiting ring has a clearance groove, and the inner cover has sixteen baffles located outside the limiting ring and distributed in annularly at equal intervals.

[0005] Preferably, the eight first air outlets in the first air outlet are distributed in a one-to-one correspondence with the second air outlets, and the four first air outlets are distributed in a staggered vertical arrangement with the second air outlets.

[0006] Preferably, the drive mechanism includes a first sprocket fixedly mounted on the outside of the drive shaft and located on the inside of the column, a handle fixedly mounted on the outside of the drive shaft and located on the outside of the column, and a second sprocket fixedly mounted on the outside of one end of the first drive shaft. The handle is connected to the second sprocket via a chain mounted on the first sprocket.

[0007] Preferably, a limit rod is fixedly installed on the inner side of the end of the push block that extends outside the fixed sleeve.

[0008] Preferably, the inner side of the baffle is provided with a slot that matches the boss.

[0009] The advantages of this utility model are as follows:

[0010] 1. The emergency alarm device for this scenic area, by rotating the drive shaft, drives the turbine fan and the fixed sleeve to rotate around the axis of the shaft through sprocket, chain drive, and two-stage gear drive. Under the elastic force of the spring, the boss is engaged in the inner side of the slot. During one rotation of the fixed sleeve, the inner cover rotates 1 / 16 turn around the axis of the outer cover. This transmission method allows the first and second air outlets to continuously alternate between eight holes and four holes. At this time, the high-speed rotation of the turbine fan compresses the air inside the outer cover and discharges it through the air outlets. The alternating number of exhaust holes creates high and low frequencies. This device can be manually alarmed without the need for additional wiring, and its installation and maintenance costs are low.

[0011] 2. The emergency alarm device in this scenic area, through the coordinated use of the first large gear, the first small gear, the second large gear, and the second small gear, enables the shaft to be accelerated in two stages when manually rotated by personnel. This allows the turbofan to rotate at high speed while ensuring that the turbofan can effectively compress the air inside the outer casing. Attached Figure Description

[0012] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a partial sectional view of the front of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model;

[0015] Figure 3This is a partial schematic diagram of the structure of this utility model;

[0016] Figure 4 for Figure 3 A partial sectional view of the side section;

[0017] Figure 5 This is a partial side view diagram of Figure 3;

[0018] Figure 6 This is a schematic diagram of the eight-hole exhaust configuration of the present invention.

[0019] Figure 7 This is a schematic diagram of the four-hole exhaust state of the structure of this utility model;

[0020] Figure 8 This is a schematic diagram of the right side of the mounting box of this utility model;

[0021] Figure 9 This is a schematic diagram of the outer cover of this utility model;

[0022] Figure 10 This is a schematic diagram of the inner cover of this utility model;

[0023] Figure 11 This is a schematic diagram of the limiting ring of this utility model.

[0024] In the diagram: 1. Column; 2. Mounting box; 3. Protective plate; 4. Outer cover; 5. Drive shaft; 6. Drive mechanism; 61. First sprocket; 62. Handle; 63. Second sprocket; 7. Air inlet slot; 8. First support; 9. Second support; 10. Rotating shaft; 11. First transmission shaft; 12. First large gear; 13. Second transmission shaft; 14. First small gear; 15. Second large gear; 16. Second small gear; 17. Turbine fan; 18. Fixing sleeve; 19. Bolt; 20. Limiting ring; 21. Inner cover; 22. First air outlet; 23. Second air outlet; 24. Push block; 25. Boss; 26. Fixing block; 27. Fixing rod; 28. Spring; 29. ​​Alternating groove; 30. Baffle; 31. Limiting rod; 32. Slot. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0026] The accompanying drawings in this utility model embodiment: different types of cross-sectional lines in the drawings are not labeled according to national standards, nor do they specify the material requirements of the components. They are used to distinguish the cross-sectional views of the components in the drawings.

[0027] Please see Figure 1-11 An emergency alarm device for scenic areas includes a column 1, a mounting box 2 located on top of the column 1, and a protective plate 3 fixedly mounted on one side of the mounting box 2. An outer cover 4 is fixedly mounted on the side of the mounting box 2 away from the protective plate 3. A drive shaft 5 is rotatably connected inside the column 1, and a drive mechanism 6 is fixedly mounted on the outer side of the drive shaft 5. An air inlet groove 7 is provided inside the mounting box 2. Through the air inlet groove 7, a turbofan 17 can compress the air inside the outer cover 4 during rotation, creating a pressure difference that allows outside air to enter the interior of the outer cover 4 through the air inlet groove 7. A first support 8 and a second support 9 are fixedly mounted inside the mounting box 2. A rotating shaft 10 located inside the outer cover 4 is rotatably connected inside the mounting box 2. A first transmission shaft 11 is rotatably connected inside the first support 8, and a first large gear 12 is fixedly fitted on the outer side of one end of the first transmission shaft 11. A second transmission shaft 13 is rotatably connected inside the second support 9, and an outer edge of the first large gear 12 is fixedly fitted on the outer side of the second transmission shaft 13. The first small gear 14 meshes with the second drive shaft 13, and the outer side of the first small gear 14 is fixedly fitted with the second large gear 15. The outer side of the shaft 10 extending to the inner side of the mounting box 2 is fixedly fitted with the second small gear 16 that meshes with the outer edge of the second large gear 15. Through the cooperation of the first drive shaft 11, the first large gear 12, the second drive shaft 13, the first small gear 14, the second large gear 15 and the second small gear 16, two speed-increasing gears can be added between the second sprocket 63 and the shaft 10 for acceleration, so that the driving force generated by the first sprocket 61 can drive the turbofan 17 to rotate at high speed. The outer side of the shaft 10 extending to the outer side of the mounting box 2 is fixedly fitted with the turbofan 17 located inside the outer cover 4. The outer side of the shaft 10 extending to the outer side of the turbofan 17 is fixedly fitted with the fixing sleeve 18. The inner side of the outer cover 4 is rotatably connected to the inner cover 21 located on one side of the fixing sleeve 18 by bolts 19.

[0028] The outer cover 4 has twelve first vent holes 22 inside, and the inner cover 21 has eight annular equidistant second vent holes 23 inside. A push block 24 located inside the limiting ring 20 is fitted inside the fixing sleeve 18. A boss 25 is provided on one side of the push block 24, and symmetrically distributed fixing blocks 26 are provided on the outer side of the push block 24. A fixing rod 27 movably fitted inside the fixing sleeve 18 is provided on one side of the fixing block 26. A spring 28 located between the fixing sleeve 18 and the fixing block 26 is fitted on the outer side of the fixing rod 27. A clearance groove 29 is provided inside the limiting ring 20, through which... The boss 25 can be positioned so that the inner cover 21 can be rotated by the baffle 30 when the boss 25 is inside the relief groove 29. When the boss 25 is outside the relief groove 29, the push block 24 will rotate freely during rotation and will not drive the outer cover 4 to rotate. This ensures that the rotating shaft 10 rotates one revolution and drives the outer cover 4 to rotate 1 / 16 revolution. This ensures that the number of exhaust holes that cooperate with the first air outlet 22 and the second air outlet 23 alternates between eight holes and four holes. The inner cover 21 is provided with sixteen baffles 30 located outside the limiting ring 20 and distributed in a ring at equal intervals.

[0029] Among them, the eight first air outlets 22 are distributed in a one-to-one correspondence with the second air outlets 23, and the four first air outlets 22 are distributed in a staggered vertical distribution with the second air outlets 23.

[0030] The drive mechanism 6 includes a first sprocket 61 fixedly mounted on the outside of the drive shaft 5 and located on the inside of the column 1, a handle 62 fixedly mounted on the outside of the drive shaft 5 and located on the outside of the column 1, and a second sprocket 63 fixedly mounted on the outside of one end of the first transmission shaft 11. The handle 62 is connected to the second sprocket 63 through a chain mounted on the first sprocket 61. The handle 62 can rotate the first sprocket 61 and drive the second sprocket 63, thereby providing driving force for the rotation of the turbofan 17. It can realize alarm reminder by manual operation.

[0031] Among them, the inner side of the push block 24 extending out of the fixed sleeve 18 is fixedly fitted with a limiting rod 31. The limiting rod 31 can limit the push block 24 to prevent the fixed rod 27 from being driven out of the fixed sleeve 18 under the elastic force of the spring 28, so as to facilitate the disassembly and assembly of the outer cover 4.

[0032] The inner side of the baffle 30 is provided with a slot 32 that matches the boss 25. The slot 32 can be used to avoid the boss 25, so that when the boss 25 is moved to the inner side of the avoidance slot 29, the inner cover 21 can be rotated by the rotation of the push block 24.

[0033] When the device is in use, the drive shaft 5 is rotated by the handle 62, which in turn drives the first drive shaft 11 to rotate via the transmission of sprockets and chains. During rotation, the first drive shaft 11 drives the rotating shaft 10 to rotate via a two-stage gear transmission, simultaneously driving the turbine fan 17 and the fixed sleeve 18 to rotate synchronously. The rotation of the turbine fan 17 compresses the air inside the outer cover 4, and the compressed air is discharged through the first air outlet 22 and the second air outlet 23. During rotation, the fixed sleeve 18 drives the push block 24 to rotate synchronously. At this time, the elastic force of the spring 28 pushes the boss 25 into the inner side of the clearance groove 29. When the boss 25 contacts the baffle 30, it drives the inner cover 21 to rotate. After the inner side of the clearance groove 29 moves out, the boss 25 releases its restriction on the baffle 30, so that the push block 24 will not push the inner cover 21 to rotate. At this time, the rotating shaft 10 is in an idle state. After the rotating shaft 10 rotates one revolution, the boss 25 moves to the inner side of the clearance groove 29 again. That is, the rotating shaft 10 rotates one revolution and drives the inner cover 21 to rotate one unit (1 / 16 revolution). At this time, the number of exhaust holes on the outer cover 4 and the inner cover 21, namely the first exhaust hole 22 and the second exhaust hole 23, alternates between eight holes and four holes, so that the compressed air discharged from the exhaust hole can form high and low frequencies. The alarm reminder is given by the change of high and low frequencies. The contents not described in detail in this description belong to the prior art known to those skilled in the art.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A scenic spot emergency alarm device, comprising a stand (1), a mounting box (2) arranged at the top of the stand (1), and a protective plate (3) fixedly arranged on one side of the mounting box (2), characterized in that: The mounting box (2) is fixedly installed with an outer cover (4) away from one side of the guard plate (3), the inside of the stand column (1) is rotationally connected with a driving shaft (5), the outer side of the driving shaft (5) is fixedly installed with a driving mechanism (6), the inside of the mounting box (2) is provided with an air inlet groove (7), and the inside of the mounting box (2) is fixedly installed with a first support (8) and a second support (9), the inside of the mounting box (2) is rotationally connected with a rotating shaft (10) located on the inside of the outer cover (4), the inside of the first support (8) is rotationally connected with a first transmission shaft (11), the outer side of one end of the first transmission shaft (11) is fixedly sleeved with a first large gear (12), the inside of the second support (9) is rotationally connected with a second transmission shaft (13), the outside of the second transmission shaft (13) is fixedly sleeved with a first small gear (14) engaged with the outer edge of the first large gear (12), and the outer side of one end of the second transmission shaft (13) extending out of the first small gear (14) is fixedly sleeved with a second large gear (15), the outer side of one end of the rotating shaft (10) extending to the inside of the mounting box (2) is fixedly sleeved with a second small gear (16) engaged with the outer edge of the second large gear (15), and the outer side of one end of the rotating shaft (10) extending out of the mounting box (2) is fixedly sleeved with a vortex fan (17) located on the inside of the outer cover (4), the outer side of one end of the rotating shaft (10) extending out of the vortex fan (17) is fixedly sleeved with a fixed sleeve (18), the inside of the outer cover (4) is fixedly installed with a limiting ring (20) located on the outside of the fixed sleeve (18) through bolts (19), and the inside of the outer cover (4) is rotationally connected with an inner cover (21) located on one side of the limiting ring (20); The inside of the outer cover (4) is provided with twelve first air outlets (22), the inside of the inner cover (21) is provided with eight annular equidistant second air outlets (23), the inside of the fixed sleeve (18) is sleeved with a push block (24) located on the inside of the limiting ring (20), one side of the push block (24) is provided with a boss (25), and the outer side of the push block (24) is provided with symmetrically distributed fixing blocks (26), one side of the fixing block (26) is provided with a fixing rod (27) movably sleeved in the inside of the fixed sleeve (18), the outer side of the fixing rod (27) is sleeved with a spring (28) located between the fixed sleeve (18) and the fixing block (26), and the inside of the limiting ring (20) is provided with an avoiding groove (29), and the inside of the inner cover (21) is provided with sixteen baffles (30) located on the outside of the limiting ring (20) and annularly and equidistantly distributed.

2. The scenic spot emergency alarm device according to claim 1, characterized in that: Eight of the first air outlets (22) in the first air outlets (22) and the second air outlets (23) are correspondingly distributed, and four first air outlets (22) and the second air outlets (23) are vertically distributed in a staggered manner.

3. The emergency alarm device for scenic spots according to claim 1, characterized in that: The driving mechanism (6) comprises a first sprocket (61) fixedly sleeved outside the driving shaft (5) and located inside the stand (1), a handle (62) fixedly sleeved outside the driving shaft (5) and located outside the stand (1), and a second sprocket (63) fixedly sleeved outside one end of the first transmission shaft (11), and the handle (62) is in transmission connection between the first sprocket (61) and the second sprocket (63) through a chain sleeved on the first sprocket (61).

4. The emergency alarm device for scenic spots according to claim 1, characterized in that: The end of the push block (24) extending outside the fixed sleeve (18) is fixedly sleeved with a limiting rod (31) inside.

5. The emergency alarm device for scenic spots according to claim 1, characterized in that: The inner side of the baffle (30) is provided with a clamping groove (32) matched with the boss (25).

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