Air-conditioning safety helmet and using method thereof

Abstract

The invention discloses an air-conditioning safety helmet and a using method thereof, and belongs to the technical field of safety helmets. An adjusting cavity is formed between an inner shell and an outer shell of the air-conditioning safety helmet, a semiconductor chilling plate is arranged in the adjusting cavity, vent holes facilitating heat dissipation of the semiconductor chilling plate are formed in the outer shell, and vent holes are formed in the inner shell; a cleaning mechanism for cleaning the mask is arranged on the shell and comprises an outer cleaning mechanism for cleaning the outer surface of the mask and an inner cleaning mechanism for cleaning the inner surface of the mask; the inner cleaning mechanism is arranged at the air outlet, close to the mask, of the adjusting cavity. A ventilation hole is formed in a mounting plate of the inner cleaning mechanism, an air supply structure is arranged on the side, away from the air outlet, of the mounting plate, and an air guide structure for guiding airflow is arranged in the ventilation hole. By the adoption of the air-conditioning safety helmet and the using method thereof, the problem that fog, rain and snow on a mask cannot be effectively treated through an existing air-conditioning helmet, and riding safety is affected can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of safety helmets, and particularly to an air - conditioned safety helmet and its usage method. Background Art

[0002] With the improvement of people's living standards and the increase in outdoor activities, the functional requirements for helmets are becoming increasingly diverse. Traditional helmets are mainly used to protect the safety of the head. For example, in scenarios such as motorcycle riding, cycling, construction work, and fire fighting operations, they can resist external impacts and reduce the risk of head injuries. However, in hot or cold environments, traditional helmets have obvious limitations. In a high - temperature environment, heat accumulates inside the helmet and the ventilation is poor, resulting in a stuffy and sweaty head. In summer, the internal temperature can reach over 40°C, which not only brings great discomfort to riders but also may cause health problems such as heat stroke, affecting riding safety. In a cold environment, ordinary helmets have insufficient heat - preservation performance and cannot effectively block the invasion of cold air, leading to rapid heat dissipation from the head, causing cold discomfort and affecting physical functions.

[0003] To solve the above problems, some air - conditioned helmets with temperature - regulation functions have gradually emerged on the market. In the prior art, some air - conditioned helmets adopt the method of forced ventilation and heat dissipation by fans. However, this method can only promote air flow, and when the ambient temperature is relatively high, the cooling effect is limited and it cannot fundamentally reduce the internal temperature of the helmet.

[0004] The existing patent CN202123389867.5 discloses a cooling helmet integrated with a TEC semiconductor refrigeration chip, including a helmet body. A heat - exchange component is provided on the top side of the helmet body, and a cooling component is provided on the front side of the helmet body. The headrest can prevent the user's head from directly contacting the heat - exchange component and the cooling component, causing hair damage. The micro - exhaust fan can absorb and discharge the heat in the cap hub cavity, and can discharge the heat from the user's forehead position, and can more comprehensively dissipate heat and cool the user's head. Heat is released through the hot end of the TEC heat exchanger body, and the discharged heat is discharged through the heat - dissipation vent, so that the helmet can obtain a high refrigeration coefficient. And by switching the direction of the current, the cooler can be changed from the refrigeration state to the heating working state, and the interior of the helmet body can be heated. It has a fast action speed, a long service life, and is easy to control. Although the above - mentioned patent can achieve the refrigeration and heating of the helmet, in the cold winter, fog is likely to form inside the mask of the helmet; in rainy and snowy weather, rain and snow are likely to adhere to the outside of the mask, affecting the rider's line of sight and the safety of riding. Summary of the Invention

[0005] The purpose of the present invention is to provide an air - conditioned safety helmet and its usage method to solve the problem that the existing air - conditioned helmets cannot effectively handle the fog and rain and snow on the mask, affecting riding safety.

[0006] To achieve the above object, the present invention provides an air-conditioning safety helmet, which includes a housing. An inner housing is arranged inside the housing. An adjustment cavity is arranged between the inner housing and the housing. A semiconductor refrigeration sheet is arranged in the adjustment cavity. Ventilation holes are arranged on the housing to facilitate the heat dissipation of the semiconductor refrigeration sheet. Ventilation holes are arranged on the inner housing to facilitate the gas in the adjustment cavity to enter the interior of the inner housing. A cleaning mechanism for cleaning the face mask is arranged on the housing. The cleaning mechanism includes an outer cleaning mechanism for cleaning the outer surface of the face mask and an inner cleaning mechanism for cleaning the inner surface of the face mask. The inner cleaning mechanism is arranged at the air outlet of the adjustment cavity close to the face mask. The inner cleaning mechanism includes a mounting plate, which is fixed between the inner housing and the housing. Ventilation holes for gas to pass through are arranged on the mounting plate. A air supply structure for sending gas into the air outlet is arranged on the side of the mounting plate away from the air outlet. A wind guiding structure for guiding the air flow is arranged inside the ventilation holes.

[0007] Preferably, the air supply structure includes a fixing plate, which is fixed between the inner housing and the housing. A plurality of mounting holes are arranged on the fixing plate. Fans are arranged at the mounting holes. The fans send the gas in the adjustment cavity through the ventilation holes into the air outlet and blow it onto the inner surface of the face mask.

[0008] Preferably, the wind guiding structure includes a plurality of wind guiding units arranged in a linear array in the ventilation holes. Each wind guiding unit includes a wind guiding plate. One end of the wind guiding plate is fixed on a mounting shaft, and the mounting shaft is rotatably connected to the mounting plate. A power structure for driving the wind guiding plate of the wind guiding unit in the middle of the wind guiding structure to swing is arranged inside the adjustment cavity. Adjacent wind guiding units are connected through a transmission structure.

[0009] Preferably, the power structure includes a motor, which is fixedly arranged in the adjustment cavity. A first rotating shaft is fixedly arranged on the output shaft of the motor. A rotating plate is fixedly arranged at one end of the first rotating shaft. A limiting hole for a limiting rod to pass through is arranged at the end of the rotating plate away from the first rotating shaft. The limiting rod is slidably connected to the rotating plate. A sleeve is arranged on the limiting rod, and the sleeve is slidably sleeved on a sliding rod. Both ends of the sliding rod are fixedly connected to the mounting shaft through connecting rods.

[0010] Preferably, the transmission structure includes an arc-shaped rack. An arc-shaped mounting groove for mounting the rack is arranged on the mounting plate. The mounting groove is concentric with the circle formed by the mounting shaft. The rack is slidably connected to the mounting groove. A transmission gear meshing with the rack is arranged on the mounting shaft.

[0011] Preferably, the outer cleaning mechanism includes a scraping plate, which is arranged outside the housing. A cavity for accommodating the face mask is arranged between the scraping plate and the housing. A cleaning brush in contact with the outer surface of the face mask is arranged at the bottom end of the scraping plate. A protective shell is arranged on the outer surface of the housing. The top end of the scraping plate is rotatably connected to the protective shell through a pin shaft. A swinging structure for driving the scraping plate to swing is arranged on the protective shell.

[0012] Preferably, the swing structure includes a turntable disposed on the third rotating shaft. The third rotating shaft is rotatably connected to the protective housing. A fixing pin is provided on the turntable. A long strip-shaped transmission hole is provided at the top of the scraper. The fixing pin is located within the transmission hole and is slidably connected to the transmission hole. The first rotating shaft and the third rotating shaft are connected by a transmission component.

[0013] Preferably, the transmission component includes a second rotating shaft located within the protective housing and rotatably connected to the protective housing. One end of the second rotating shaft is provided with a second synchronous pulley. The second synchronous pulley and the first synchronous pulley provided on the first rotating shaft are connected by a synchronous belt. A through hole for the synchronous belt to pass through is provided on the outer housing. The other end of the second rotating shaft is provided with a first bevel gear. The first bevel gear meshes with a second bevel gear provided on the third rotating shaft.

[0014] Preferably, a controller and a storage battery are provided on the outer housing. A charging interface for charging the storage battery is provided on the outer housing. A control panel is provided on the outer housing. A temperature sensor for monitoring the temperature inside the inner housing is provided on the inner housing. The storage battery, the temperature sensor, the control panel, the motor, and the fan are all connected to the controller.

[0015] The usage method of the above air-conditioning safety helmet includes the following steps: S1. When a cyclist wears the helmet and rides, when the temperature sensor detects that the temperature inside the inner housing exceeds the set value, the semiconductor refrigeration chip starts to work. The semiconductor cools or heats the gas in the control cavity. The gas enters the inside of the inner housing through the ventilation holes provided on the inner housing for temperature adjustment. S2. When encountering rainy, snowy weather or when the inner surface of the face mask gets fogged up, the motor and the fan are started by pressing a button on the control panel. The motor drives the rotating plate to rotate through the first rotating shaft. The rotating plate drives the sleeve to rotate synchronously through the limiting rod. The sleeve drives the sliding rod to rotate. The sliding rod drives the mounting shaft to rotate reciprocally through the connecting rod. The mounting shaft drives the air deflector to swing. The fan sends the air flow in the adjustment cavity into the mounting plate, and the air deflector evenly sends the air flow onto the inner surface of the face mask to defog the face mask. S3. The first synchronous pulley on the first rotating shaft drives the second rotating shaft through the synchronous belt and the second synchronous pulley. The second rotating shaft drives the third rotating shaft through the first bevel gear and the second bevel gear. The third rotating shaft drives the turntable to rotate. The turntable drives the scraper to swing reciprocally through the transmission hole and the pin shaft. The scraper cleans the rain and snow on the outer surface of the face mask through the cleaning brush.

[0016] The advantages and positive effects of the air-conditioning safety helmet and its usage method according to the present invention are: 1. The present invention is provided with a cleaning mechanism on the outer shell for cleaning the face mask. The cleaning mechanism includes an outer cleaning mechanism for cleaning the outer surface of the face mask and an inner cleaning mechanism for cleaning the inner surface of the face mask. The inner cleaning mechanism is used to send the gas in the adjustment cavity into the inner surface of the face mask to remove fog on the face mask. The outer cleaning mechanism is used to clean the rain and snow on the face mask, ensuring the rider's line of sight and improving the safety of riding.

[0017] 2. The inner cleaning mechanism of the present invention is provided with a wind guiding plate, which drives a plurality of wind guiding plates to swing synchronously through a power structure and a transmission structure, and evenly sends the air flow in the adjustment cavity into the inner surface of the face mask, improving the fog removal effect.

[0018] 3. The scraper of the outer cleaning mechanism of the present invention is driven to swing through a swinging structure. The swinging structure is connected to the power structure through a transmission component, enabling the outer cleaning mechanism and the inner cleaning mechanism to work synchronously, facilitating the synchronous control of the outer cleaning mechanism and the inner cleaning mechanism, improving the convenience of operation, and also improving the cleaning effect of the face mask.

[0019] The technical solution of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 is a cross-sectional structural schematic diagram of an embodiment of the present invention; Figure 3 is a structural schematic diagram of a fixing plate of an embodiment of the present invention; Figure 4 is a front structural schematic diagram of the cleaning mechanism of an embodiment of the present invention; Figure 5 is a back structural schematic diagram of the cleaning mechanism of an embodiment of the present invention; Figure 6 is a structural schematic diagram of the power structure of an embodiment of the present invention.

[0021] Reference Signs 1. Outer shell; 2. Face mask; 3. Scraper; 4. Protective shell; 5. Ventilation holes; 6. Inner shell; 7. Semiconductor refrigeration sheet; 8. Fan; 9. Fixing plate; 10. Mounting holes; 11. Mounting plate; 12. Ventilation holes; 13. Wind guiding plate; 14. Mounting shaft; 15. Connecting rod; 16. Slide bar; 17. Sleeve; 18. Rotating plate; 19. Limiting rod; 20. First rotating shaft; 21. Motor; 22. Rack; 23. Transmission gear; 24. Synchronous belt; 25. First synchronous pulley; 26. Second synchronous pulley; 27. First bevel gear; 28. Second rotating shaft; 29. Second bevel gear; 30. Turntable; 31. Transmission hole; 32. Pin shaft; 33. Cleaning brush; 34. Third rotating shaft. Detailed Embodiments

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. In case of inconsistency, the meaning described in this specification or the meaning obtained according to the content recorded in this specification shall prevail. In addition, the terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0024] The following will describe in detail the embodiments of the present invention with reference to the drawings.

[0025] As Figure 1 、 Figure 2 shown. An air-conditioning safety helmet includes a housing 1. An inner housing 6 is provided inside the housing 1. An adjustment cavity is provided between the inner housing 6 and the housing 1, and the adjustment cavity is a relatively closed space. The temperature of the gas in the adjustment cavity is adjusted to achieve the purpose of heating or cooling the helmet. Ventilation holes are evenly provided on the inner housing 6 to facilitate the gas in the adjustment cavity to enter the inside of the inner housing 6, so as to cool or heat the rider. A thermoelectric cooler 7 is provided in the adjustment cavity, and the thermoelectric cooler 7 is used to adjust the temperature of the gas in the adjustment cavity. Ventilation holes 5 are provided on the housing 1 to facilitate the heat dissipation of the thermoelectric cooler 7.

[0026] A cleaning mechanism for cleaning the face shield 2 is provided on the housing 1. The cleaning mechanism includes an outer cleaning mechanism for cleaning the outer surface of the face shield 2 and an inner cleaning mechanism for cleaning the inner surface of the face shield 2. The inner cleaning mechanism is provided at the air outlet of the adjustment cavity close to the face shield 2, and the inner cleaning mechanism is used to send the gas in the adjustment cavity into the inner surface of the face shield 2 to defog the face shield 2.

[0027] As Figure 4 、 Figure 5As shown in the figure. The internal cleaning mechanism includes a mounting plate 11, which is fixed between the inner shell 6 and the outer shell 1. The mounting plate 11 is provided with ventilation holes 12 for gas to pass through. On the side of the mounting plate 11 away from the air outlet, there is a air supply structure for sending gas into the air outlet. Inside the ventilation holes 12, there is a wind guiding structure for guiding the air flow.

[0028] As Figure 3 shown in the figure. The air supply structure includes a fixing plate 9, which is fixed between the inner shell 6 and the outer shell 1. The fixing plate 9 is provided with a number of mounting holes 10, and at the mounting holes 10, there are fans 8. The fans 8 send the gas in the adjustment cavity through the ventilation holes 12 into the air outlet and blow it towards the inner surface of the mask 2.

[0029] The wind guiding structure includes a number of wind guiding units arranged in a linear array in the ventilation holes 12. Each wind guiding unit includes a wind guiding plate 13, which is located in the ventilation holes 12. One end of the wind guiding plate 13 is fixed on a mounting shaft 14, and the mounting shaft 14 is rotatably connected to the mounting plate 11 through a bearing.

[0030] As Figure 6 shown in the figure. Inside the adjustment cavity, there is a power structure for driving the wind guiding plate 13 of the wind guiding unit in the middle of the wind guiding structure to swing. The power structure includes a motor 21, which is fixedly arranged in the adjustment cavity. On the output shaft of the motor 21, there is a first rotating shaft 20 fixedly arranged. At one end of the first rotating shaft 20, there is a rotating plate 18 fixedly arranged. At the end of the rotating plate 18 away from the first rotating shaft 20, there is a limiting hole for the limiting rod 19 to pass through, and the limiting rod 19 is slidably connected to the rotating plate 18. On the limiting rod 19, there is a sleeve 17, and the sleeve 17 is slidably sleeved on the sliding rod 16. Both ends of the sliding rod 16 are fixedly connected to the mounting shaft 14 through connecting rods 15.

[0031] Adjacent wind guiding units are connected through a transmission structure. The transmission structure includes an arc-shaped rack 22. On the mounting plate 11, there is an arc-shaped mounting groove for mounting the rack 22, and the mounting groove is concentric with the circle formed by the mounting shaft 14. The rack 22 is slidably connected to the mounting groove. On the mounting shaft 14, there is a transmission gear 23 meshing with the rack 22. The mounting shaft 14 in the middle of the mounting plate 11 drives the rack 22 to slide in the mounting groove through the transmission gear 23, and the rack 22 drives other mounting shafts 14 to rotate synchronously through the transmission gear 23, realizing the synchronous swing of the wind guiding plates 13, guiding the air flow, and improving the defogging effect on the inner surface of the mask 2.

[0032] The external cleaning mechanism includes a scraper 3, which is arranged outside the housing 1. A cavity for accommodating the face mask 2 is arranged between the scraper 3 and the housing 1 to avoid affecting the opening and closing of the face mask 2. A cleaning brush 33 that contacts the outer surface of the face mask is fixedly arranged at the bottom end of the scraper 3, and the outer surface of the face mask 2 is cleaned by the cleaning brush 33. A protective shell 4 is fixedly arranged on the outer surface of the housing 1, and the top end of the scraper 3 is rotatably connected to the protective shell 4 through a pin shaft 32.

[0033] A swinging structure for driving the scraper 3 to swing is arranged on the protective shell 4. The swinging structure includes a turntable 30, which is fixedly arranged on the third rotating shaft 34. The third rotating shaft 34 is rotatably connected to the protective shell 4 through a bearing. A fixing pin is arranged on the turntable 30, a long strip-shaped transmission hole 31 is arranged at the top end of the scraper 3, and the fixing pin is located in the transmission hole 31 and is slidably connected to the transmission hole 31.

[0034] The first rotating shaft 20 and the third rotating shaft 34 are connected through a transmission component. The transmission component includes a second rotating shaft 28, which is located inside the protective shell 4 and is rotatably connected to the protective shell 4 through a bearing seat. A second synchronous pulley 26 is fixedly arranged at one end of the second rotating shaft 28, and the second synchronous pulley 26 is connected to a first synchronous pulley 25 fixedly arranged on the first rotating shaft 20 through a synchronous belt 24. A through hole for the synchronous belt 24 to pass through is arranged on the housing 1. A first bevel gear 27 is fixedly arranged at the other end of the second rotating shaft 28, and the first bevel gear 27 meshes with a second bevel gear 29 fixedly arranged on the third rotating shaft 34.

[0035] A controller and a storage battery are arranged on the housing 1, and a charging interface for charging the storage battery is arranged on the housing 1. A control panel is arranged on the housing 1, a temperature sensor for monitoring the temperature inside the inner shell 6 is arranged on the inner shell 6, and the storage battery, the temperature sensor, the control panel, the motor 21, and the fan 8 are connected to the controller according to needs by using existing technologies. A photovoltaic panel can also be arranged on the outer surface of the housing 1 to realize the self-power generation of the helmet.

[0036] The using method of the above air-conditioning safety helmet includes the following steps: S1. When a rider wears the helmet and rides, when the temperature sensor detects that the temperature inside the inner shell 6 exceeds the set value, the semiconductor refrigeration sheet 7 starts to work, the semiconductor cools or heats the gas in the control cavity, and the gas enters the inside of the inner shell 6 through the ventilation holes arranged on the inner shell 6 to adjust the temperature of the rider. By changing the direction of the current, the conversion between refrigeration and heating of the semiconductor refrigeration sheet 7 can be realized, which is convenient to use.

[0037] S2. When encountering rainy, snowy weather or when the inner surface of the face mask 2 gets fogged up, start the motor 21 and the fan 8 through the button on the control panel. The motor 21 drives the rotating plate 18 to rotate through the first rotating shaft 20. The rotating plate 18 drives the sleeve 17 to rotate synchronously through the limiting rod 19. The sleeve 17 drives the sliding rod 16 to rotate. The sliding rod 16 drives the mounting shaft 14 to rotate reciprocally through the connecting rod 15. The mounting shaft 14 drives the air deflector 13 to swing. The fan 8 sends the air flow in the adjustment cavity into the mounting plate 11, and the air deflector 13 evenly sends the air flow onto the inner surface of the face mask 2 to defog the face mask 2.

[0038] S3. The first synchronous pulley 25 on the first rotating shaft 20 drives the second rotating shaft 28 to rotate through the synchronous belt 24 and the second synchronous pulley 26. The second rotating shaft 28 drives the third rotating shaft 34 to rotate through the first bevel gear 27 and the second bevel gear 29. The third rotating shaft 34 drives the turntable 30 to rotate. The turntable 30 drives the scraper 3 to swing reciprocally through the transmission hole 31 and the pin shaft 32. The scraper 3 uses the cleaning brush 33 to clean the rain and snow on the outer surface of the face mask 2.

[0039] Therefore, by adopting the air-conditioning safety helmet and its using method described in the present invention, the problem that the existing air-conditioning helmets cannot effectively handle the fog, rain and snow on the face mask and affect the riding safety can be solved.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements do not make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An air conditioner safety helmet, comprising a housing, an inner housing is arranged inside the housing, an adjustment cavity is arranged between the inner housing and the housing, a semiconductor refrigerating sheet is arranged in the adjustment cavity, and air vents facilitating heat dissipation of the semiconductor refrigerating sheet are arranged on the housing, and is characterized in that: The inner shell is provided with ventilation holes facilitating the entry of gas in the cavity into the interior of the inner shell. The outer shell is provided with a cleaning mechanism for cleaning the face mask. The cleaning mechanism includes an outer cleaning mechanism for cleaning the outer surface of the face mask and an inner cleaning mechanism for cleaning the inner surface of the face mask. The inner cleaning mechanism is arranged at the air outlet of the adjustment cavity close to the face mask. The inner cleaning mechanism includes a mounting plate fixed between the inner shell and the outer shell. The mounting plate is provided with ventilation holes for gas to pass through. On the side of the mounting plate away from the air outlet, there is a air supply structure for sending gas into the air outlet. Inside the ventilation holes, there is a wind guiding structure for guiding the airflow.

2. The air-conditioning safety helmet according to claim 1, wherein: The air supply structure includes a fixing plate fixed between the inner shell and the outer shell. The fixing plate is provided with a number of mounting holes, and at the mounting holes, there are fans. The fans send the gas in the adjustment cavity through the ventilation holes into the air outlet and blow it towards the inner surface of the face mask.

3. The air-conditioning safety helmet according to claim 2, characterized in that: The wind guiding structure includes a number of wind guiding units linearly arrayed in the ventilation holes. Each wind guiding unit includes a wind guiding plate. One end of the wind guiding plate is fixed on a mounting shaft, and the mounting shaft is rotatably connected to the mounting plate. Inside the adjustment cavity, there is a power structure for driving the wind guiding plate of the wind guiding unit in the middle of the wind guiding structure to swing. Adjacent wind guiding units are connected through a transmission structure.

4. The air-conditioning safety helmet according to claim 3, wherein: The power structure includes a motor fixedly arranged in the adjustment cavity. A first rotating shaft is fixedly arranged on the output shaft of the motor. One end of the first rotating shaft is fixedly provided with a rotating plate. At the end of the rotating plate away from the first rotating shaft, there is a limiting hole for a limiting rod to pass through. The limiting rod is slidably connected to the rotating plate. A sleeve is arranged on the limiting rod, and the sleeve is slidably sleeved on a sliding rod. Both ends of the sliding rod are fixedly connected to the mounting shaft through connecting rods.

5. The air-conditioning safety helmet according to claim 4, characterized in that: The transmission structure includes an arc-shaped rack. The mounting plate is provided with an arc-shaped mounting groove for mounting the rack. The mounting groove is concentric with the circle formed by the mounting shaft. The rack is slidably connected to the mounting groove. A transmission gear meshing with the rack is arranged on the mounting shaft.

6. The air-conditioning safety helmet according to claim 5, wherein: The outer cleaning mechanism includes a scraping plate arranged outside the outer shell. There is a cavity for accommodating the face mask between the scraping plate and the outer shell. At the bottom end of the scraping plate, there is a cleaning brush in contact with the outer surface of the face mask. A protective shell is arranged on the outer surface of the outer shell. The top end of the scraping plate is rotatably connected to the protective shell through a pin shaft. The protective shell is provided with a swinging structure for driving the scraping plate to swing.

7. The air-conditioning safety helmet according to claim 6, characterized in that: The swinging structure includes a turntable arranged on a third rotating shaft. The third rotating shaft is rotatably connected to the protective shell. A fixing pin is arranged on the turntable. The top end of the scraping plate is provided with an elongated transmission hole. The fixing pin is located in the transmission hole and is slidably connected to the transmission hole. A transmission component is connected between the first rotating shaft and the third rotating shaft.

8. The air-conditioning safety helmet according to claim 7, wherein: The transmission component includes a second rotating shaft located inside the protective shell and rotatably connected to the protective shell. One end of the second rotating shaft is provided with a second synchronous pulley. The second synchronous pulley is connected to a first synchronous pulley arranged on the first rotating shaft through a synchronous belt. The outer shell is provided with a through hole for the synchronous belt to pass through. The other end of the second rotating shaft is provided with a first bevel gear, and the first bevel gear meshes with a second bevel gear arranged on the third rotating shaft.

9. The air conditioner safety helmet according to claim 8, wherein: A controller and a storage battery are arranged on the outer shell. A charging interface for charging the storage battery is arranged on the outer shell. A control panel is arranged on the outer shell. A temperature sensor for monitoring the temperature inside the inner shell is arranged on the inner shell. The storage battery, the temperature sensor, the control panel, the motor and the fan are all connected to the controller.

10. A method for using an air conditioner safety helmet as described in claim 9, characterized in that, It includes the following steps: S1. The rider wears the helmet and rides. When the temperature sensor detects that the temperature inside the inner shell exceeds the set value, the semiconductor refrigeration sheet starts to work. The semiconductor cools or heats the gas in the control cavity. The gas enters the inside of the inner shell through the ventilation holes arranged on the inner shell for temperature adjustment. S2. When encountering rainy, snowy weather or when the inner surface of the face mask gets fogged up, the motor and the fan are started through the buttons on the control panel. The motor drives the rotating plate to rotate through the first rotating shaft. The rotating plate drives the sleeve to rotate synchronously through the limiting rod. The sleeve drives the sliding rod to rotate. The sliding rod drives the mounting shaft to rotate reciprocally through the connecting rod. The mounting shaft drives the air deflector to swing. The fan sends the air flow in the adjustment cavity into the mounting plate. The air deflector evenly sends the air flow onto the inner surface of the face mask to defog the face mask. S3. The first synchronous wheel on the first rotating shaft drives the second rotating shaft to rotate through the synchronous belt and the second synchronous wheel. The second rotating shaft drives the third rotating shaft to rotate through the first bevel gear and the second bevel gear. The third rotating shaft drives the turntable to rotate. The turntable drives the scraper to swing reciprocally through the transmission hole and the pin shaft. The scraper cleans the rain and snow on the outer surface of the face mask through the cleaning brush.

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