Lighter with alcohol testing function

Abstract

A lighter with an alcohol testing function comprises a shell, an end cover, an ignition unit and an alcohol testing unit. A containing cavity and an air cavity are formed in the shell, and an air blowing hole communicating the inside and outside of the air cavity is formed in the tail end of the shell. The end cover is arranged at the tail end of the shell to cover or open the blowing hole; the ignition unit is installed in the containing cavity, and the ignition end of the ignition unit extends and penetrates through the shell to the outside. The alcohol testing unit is mounted in the accommodating cavity, and the detection end of the alcohol testing unit extends into the air cavity; under the normal condition, the end cover covers the air blowing hole, and a user can normally use the ignition unit; when an alcohol test is carried out, the end cover is moved to open the air blowing hole, air is blown into the air cavity through the air blowing hole, the gas concentration in the air cavity is detected by the detection end, and the alcohol intake degree of a user can be judged; after the test is finished, the end cover covers the air blowing hole again; therefore, due to the design of the end cover, long-term exposure of the tail end of the shell can be avoided, the blow hole can be prevented from being contaminated by dirt, the use experience is improved, dust can be prevented from entering the air cavity to be attached to the detection end, and the detection precision is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of lighters, and in particular relates to a lighter with an alcohol testing function. Background Technology

[0002] With the development of technology, conventional lighters are difficult to meet people's daily needs due to their limited functionality; therefore, a utility model patent with application number 2016204994148 proposes a lighter with an alcohol testing function. The lighter's shell is equipped with an ignition unit and an alcohol testing unit, thus possessing functions such as ignition and alcohol testing, making it more versatile.

[0003] However, in actual use, it was found that because the air vent is exposed for a long time, it is easy to get contaminated with bacteria and other dirt, which affects the user experience. At the same time, dust from the outside can easily enter the alcohol test channel through the air vent and adhere to the alcohol sensor, affecting the detection accuracy. Utility Model Content

[0004] Technical problems to be solved

[0005] This invention provides a lighter with an alcohol testing function, which can solve the problems mentioned in the background art.

[0006] Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A lighter with an alcohol testing function includes a housing, an end cap, an ignition unit, and an alcohol testing unit. The housing has a receiving cavity and an air cavity inside, and a blow hole connecting the air cavity and the outside is provided at the tail end of the housing. The end cap is disposed at the tail end of the housing to cover or open the blow hole. The ignition unit is installed in the receiving cavity, and its ignition end extends through the housing to the outside. The alcohol testing unit is installed in the receiving cavity, and its detection end extends into the air cavity.

[0009] Preferably, the tail end of the housing is also provided with an exhaust port that connects to the air chamber, and the gas in the air chamber can be discharged to the outside through the exhaust port. The end cap can simultaneously close or open the air blowing port and the exhaust port.

[0010] Preferably, the air inlet and the exhaust outlet are located on the same plane at the tail end of the housing, and the exhaust outlet is offset from and away from the air inlet.

[0011] Preferably, a conduit is provided on the inner wall of the air chamber, one end of the conduit is connected to the air blowing hole, and the other end of the conduit is connected to the air chamber and extends to the detection end of the alcohol testing unit.

[0012] Preferably, one side of the end cap is hinged to the tail end of the housing, the other side of the end cap is provided with a buckle, and the tail end of the housing is also provided with a latch. When the end cap is flipped to close the air blowing hole and the air vent, the buckle engages with the latch.

[0013] Preferably, the end cap is provided with a sealing strip, and when the buckle is engaged with the bayonet, the end cap adheres to the tail end surface of the housing through the sealing strip.

[0014] Preferably, the tail end of the housing is provided with a protruding air nozzle, the air nozzle is hollow and connected to the air chamber; the blowing hole is provided on the bottom surface of the air nozzle, the exhaust hole is provided on the side of the air nozzle, and both the blowing hole and the exhaust hole are connected to the outside and the inside of the air nozzle, and the end cap can enclose or expose the air nozzle.

[0015] Preferably, the end cap has a cavity inside, and the tail end of the housing has a protrusion around the air nozzle. When the air nozzle is fitted into the cavity, the protrusion and the cavity are interference-fitted to fix the end cap to the tail end of the housing.

[0016] Preferably, it further includes a sterilization unit installed inside the air chamber to eliminate bacteria inside the air chamber.

[0017] Preferably, the ignition unit includes a first circuit board, a heating wire, and an ignition button. The heating wire is mounted at the first end of the housing and serves as the ignition end. The ignition button is movably mounted on the housing. The first circuit board is mounted in the receiving cavity and electrically connected to the heating wire and the ignition button. The alcohol testing unit includes a second circuit board, an alcohol sensor, and a switch button. The alcohol sensor is mounted in the gas chamber and serves as the detection end. The switch button is movably mounted on the housing. The second circuit board is mounted in the receiving cavity and electrically connected to the alcohol sensor and the switch button. The sterilization unit includes an ultraviolet lamp, which is electrically connected to the second circuit board.

[0018] Preferably, the first end of the housing is also hinged with a cover for covering the heating wire portion.

[0019] Preferably, it further includes a power supply unit and a display unit; the power supply unit includes a battery and a charging port, the battery is installed in the receiving cavity and electrically connected to the first circuit board and the second circuit board, and the charging port is installed on the housing and electrically connected to the first circuit board or the second circuit board; the display unit includes a display panel, the display panel is installed on the housing and electrically connected to the second circuit board to display the data results of the alcohol test.

[0020] Preferably, the display unit further includes an indicator light, which is mounted on the housing and electrically connected to the second circuit board to display the remaining power of the battery and the on / off status of the alcohol sensor and the ultraviolet lamp.

[0021] (III) Beneficial Effects

[0022] This utility model provides a lighter with an alcohol testing function. By installing an ignition unit and an alcohol testing unit on the shell, the lighter has both fire-starting and alcohol testing functions, thus enriching its uses. The end cap is designed to open and close the bottom of the shell, so that the tail end of the shell is always covered. This not only prevents the blowing hole from getting dirty and keeps it clean, improving the user experience, but also prevents dust from entering the air chamber and adhering to the detection end, ensuring the accuracy of alcohol testing. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 A schematic diagram of the overall structure of the first embodiment of this utility model is shown. Figure 1 ;

[0025] Figure 2 It shows Figure 1 AA section view;

[0026] Figure 3 It shows Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 A schematic diagram of the overall structure of the first embodiment of this utility model is shown. Figure 2 ;

[0028] Figure 5 It shows Figure 4 Enlarged view of point B in the middle;

[0029] Figure 6 It shows Figure 4 A bottom view;

[0030] Figure 7 It shows Figure 6 BB section view;

[0031] Figure 8 It shows Figure 7 Enlarged view of point C in the middle;

[0032] Figure 9 It shows Figure 4 A schematic diagram of the decomposition process;

[0033] Figure 10 It shows Figure 9 Enlarged view of point D in the middle;

[0034] Figure 11 A schematic diagram of the overall structure of the second embodiment of this utility model is shown. Figure 1 ;

[0035] Figure 12 A schematic diagram of the overall structure of the second embodiment of this utility model is shown. Figure 2 ;

[0036] Figure 13 A schematic diagram of the overall structure of the second embodiment of this utility model is shown. Figure 3 ;

[0037] Figure 14 A bottom view of a portion of the structure of the second embodiment of this utility model is shown;

[0038] Figure 15 It shows Figure 14 CC section view;

[0039] Figure 16 It shows Figure 12 A schematic diagram of its breakdown.

[0040] In the diagram: 1. Housing, 11. Receiving cavity, 12. Air chamber, 121. Air blowing hole, 122. Exhaust hole, 123. Conduit, 13. Air nozzle, 14. Protrusion, 15. Housing cover, 1k. Bayonet, 2. End cover, 20. Sleeve cavity, 2k. Buckle, 2m. Sealing strip, 3. Ignition unit, 30. Ignition end, 31. First circuit board, 32. Heating wire, 33. Ignition button, 4. Alcohol testing unit, 40. Detection end, 41. Second circuit board, 42. Alcohol sensor, 43. Switch button, 5. Sterilization unit, 51. Ultraviolet lamp, 6. Power supply unit, 61. Battery, 62. Charging port, 7. Display unit, 71. Display panel, 72. Indicator light. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application.

[0042] See attached Figure 1 -Attached Figure 10A lighter with an alcohol testing function includes a housing 1, an end cap 2, an ignition unit 3, and an alcohol testing unit 4. The housing 1 has a receiving cavity 11 and an air cavity 12 inside, and a blowing hole 121 connecting the air cavity 12 and the outside is provided at the tail end of the housing 1. The end cap 2 is provided at the tail end of the housing 1 to cover or open the blowing hole 121. The ignition unit 3 is installed in the receiving cavity 11, and its ignition end 30 extends through the housing 1 to the outside. The alcohol testing unit 4 is installed in the receiving cavity 11, and its detection end 40 extends into the air cavity 12.

[0043] Specifically, under normal circumstances, the end cap 2 closes the air inlet 121, and the user can use the ignition unit 3 to start a fire normally. When an alcohol test is required, the end cap 2 is moved to open the air inlet 121, and air is blown into the air chamber 12 through the air inlet 121. The detection end 40 located in the alcohol test unit 4 will detect the gas concentration in the air chamber 12 to determine the degree of alcohol ingested by the user and prevent the user from driving under the influence of alcohol. After the alcohol test is completed, the user can first wipe the tail end of the housing 1, and then close the end cap 2 again to close the air inlet 121.

[0044] In summary, by installing an ignition unit 3 and an alcohol testing unit 4 on the housing 1, this utility model enables the lighter to have both fire-starting and alcohol testing functions, thus enriching its applications. By designing an end cap 2 for opening and closing the bottom of the housing 1, the tail end of the housing 1 is always covered, which not only prevents the air hole 121 from getting dirty and keeps it clean, improving the user experience, but also prevents dust from entering the air chamber 12 and adhering to the detection end 40, ensuring the accuracy of alcohol detection.

[0045] See attached Figure 1 -Attached Figure 10 In the prior art, the housing 1 is usually designed with only a single air inlet 121 to correspond to the alcohol testing unit 4. Although the alcohol testing function can be used normally, it has been found in actual use that when the breathed gas fills the air chamber 12, new gas cannot enter, resulting in the detection end 40 only being able to contact a small amount of exhaled gas and making it difficult to perform a comprehensive test, resulting in relatively low detection accuracy. To solve this problem, in this utility model, the tail end of the housing 1 is also provided with an exhaust port 122 that connects to the air chamber 12. The gas in the air chamber 12 can be discharged to the outside through the exhaust port 122. The end cap 2 can simultaneously close or open the air inlet 121 and the exhaust port 122.

[0046] Specifically, when the user exhales air into the air chamber 12 through the exhalation port 121, it first contacts the detection end 40 of the alcohol testing unit 4, and then is discharged to the outside through the exhaust port 122. Since the air chamber 12 has a gas channel to the outside, the user can continuously exhale into the air chamber 12, so that the detection end 40 can come into contact with a relatively large amount of gas, thereby enabling more comprehensive detection and improving detection accuracy.

[0047] The design of the end cap 2, which can simultaneously close or open the air blowing hole 121 and the exhaust hole 122, can prevent the air blowing hole 121 and the exhaust hole 122 from being exposed for a long time and getting dirty, and prevent external dust from entering the air chamber 12.

[0048] See attached Figure 1 -Attached Figure 10 The blowing hole 121 and the exhaust hole 122 are located on the same plane at the tail end of the housing 1, and the exhaust hole 122 is offset and far away from the blowing hole 121. This design can prevent the user's exhaled air from entering the air chamber 12 from both the blowing hole 121 and the exhaust hole 122 at the same time, thus avoiding convection interference. This allows the exhaled air to enter the air chamber 12 normally and be expelled normally, ensuring normal air flow.

[0049] See attached Figure 1 -Attached Figure 10 A conduit 123 is provided on the inner wall of the air chamber 12. One end of the conduit 123 is connected to the air blowing hole 121, and the other end of the conduit 123 is connected to the air chamber 12 and extends to the detection end 40 of the alcohol testing unit 4. This design can accurately guide the gas exhaled by the user to the detection end 40 of the alcohol testing unit 4, so that the gas has sufficient contact time with the detection end 40, preventing the gas from being discharged to the outside from the exhaust hole 122 without contacting the detection end 40 after entering the air chamber 12, thereby further improving the detection accuracy.

[0050] See attached Figure 1 -Attached Figure 10 There are various ways to fix the end cap 2 and the housing 1. This utility model does not limit this. For ease of understanding, in this embodiment, the end cap 2 is hinged to the tail end of the housing 1 on one side, and a buckle 2k is provided on the other side of the end cap 2. The tail end of the housing 1 is also provided with a bayonet 1k. When the end cap 2 is flipped to close the blowing hole 121 and the exhaust hole 122, the buckle 2k engages with the bayonet 1k.

[0051] Specifically, when the end cap 2 closes the air inlet 121 and the exhaust outlet 122, the buckle 2k engages with the latch 1k to fix the end cap 2 onto the housing 1; when an alcohol test is required, forcefully pry the end cap 2 to disengage the buckle 2k from the latch 1k, and then flip the end cap 2 to open the air inlet 121 and the exhaust outlet 122.

[0052] See attached Figure 1 -Attached Figure 6 The end cap 2 is provided with a sealing strip 2m. When the buckle 2k engages with the slot 1k, the end cap 2 fits against the tail end surface of the housing 1 through the sealing strip 2m. This design can increase the sealing between the housing 1 and the end cap 2, and improve the dustproof and waterproof capabilities.

[0053] See attached Figure 11 -Attached Figure 16Considering that the shell 1 may become covered with dirt and bacteria if it is exposed for a long time, and that the user's lips may come into contact with the shell 1 when conducting an alcohol test, which is very unhygienic; in order to solve this problem, the tail end of the shell 1 is provided with a protruding air nozzle 13. The air nozzle 13 is hollow inside and connected to the air chamber 12. The blowing hole 121 is provided on the bottom surface of the air nozzle 13, and the exhaust hole 122 is provided on the side of the air nozzle 13. Both the blowing hole 121 and the exhaust hole 122 are connected to the outside and the inside of the air nozzle 13. The end cap 2 can enclose or expose the air nozzle 13.

[0054] Specifically, under normal circumstances, the end cap 2 surrounds the air nozzle 13, as well as the air blowing hole 121 and the exhaust hole 122 on the air nozzle 13. When in use, the end cap 2 is removed to expose the air nozzle 13. The user can place their lips against the bottom of the air nozzle 13 and then blow gas into the air chamber 12 through the air blowing hole 121. After the gas enters the air chamber 12, it will contact the detection end 40 and move within the air chamber 12. At the same time, in order to maintain the balance of internal and external air pressure, the gas in the air chamber 12 will flow back along the air nozzle 13 until it is discharged to the outside through the exhaust hole 122, ensuring that the user can continuously supply air to the detection end 40 through the air nozzle 13.

[0055] Users can wipe the air nozzle 13 with a tissue or cloth before and after use, and then use or close the end cap 2 to further ensure hygiene.

[0056] See attached Figure 11 -Attached Figure 16 The protruding air nozzle 13 occupies a certain space, making it difficult to continue connecting the end cap 2 and the housing 1 using the aforementioned hinge method. Therefore, in this utility model, the end cap 2 is provided with a sleeve cavity 20, and the tail end of the housing 1 is provided with a protrusion 14 around the air nozzle 13. The protrusion 14 can be interference-fitted with the sleeve cavity 20.

[0057] Specifically, under normal circumstances, the air nozzle 13 is fitted into the cavity 20, and the protrusion 14 abuts against the inner wall of the cavity 20 and is interference-fitted with the cavity 20 to fix the end cap 2 to the tail end of the housing 1. When it is necessary to remove the end cap 2, the end cap 2 is moved upward forcefully so that the inner wall of the cavity 20 is disengaged from the protrusion 14. The protrusion 14 can both restrict the end cap 2 and seal the cavity 20.

[0058] It should be noted that, in addition to the above-mentioned installation methods, magnetic attraction and adhesive bonding can also be used to connect the end cap 2 and the housing 1. Since there are various related installation methods, this utility model does not limit them.

[0059] See attached Figure 11 -Attached Figure 16When conducting an alcohol test, the exhaled air contains saliva, which can easily breed bacteria after entering the air chamber 12. To solve this problem, this invention also includes a sterilization unit 5, which is installed in the air chamber 12 to eliminate bacteria in the air chamber 12.

[0060] Specifically, under normal circumstances, the sterilization unit 5 is in the off state. After the alcohol test is completed, the user can activate the sterilization unit 5 to sterilize and disinfect the air chamber 12 so as to keep the air chamber 12 clean.

[0061] See attached Figure 1 -Attached Figure 16 Ignition units 3 come in various types, such as gas ignition type and electric ignition type, and all of these types are existing technologies. Therefore, the specific structure of the ignition unit 3 is not limited in this utility model. For ease of understanding, this case takes an electric ignition structure as an example: Specifically, the ignition unit 3 includes a first circuit board 31, a heating wire part 32 and an ignition button 33. The heating wire part 32 is installed at the first end of the housing 1 and serves as the ignition end 30. The ignition button 33 is movably installed on the housing 1. The first circuit board 31 is installed in the receiving cavity 11 and electrically connects the heating wire part 32 and the ignition button 33.

[0062] When in use, pressing the ignition button 33 will cause the first circuit board 31 to receive the ignition signal and power the heating wire 32, which will then heat up to ignite the object. When the user releases the ignition button 33, the first circuit board 31 will receive the ignition signal and control the heating wire 32 to de-energize, so that the heating wire 32 returns to its initial state.

[0063] See attached Figure 1 -Attached Figure 16 The alcohol testing unit 4 can be of various types, such as electrochemical, semiconductor, and infrared, and all of these types are existing technologies. Therefore, this utility model does not limit the specific type of the alcohol testing unit 4. For ease of understanding, this case takes the semiconductor type as an example: Specifically, the alcohol testing unit 4 includes a second circuit board 41, an alcohol sensor 42, and a switch button 43. The alcohol sensor 42 is installed in the gas chamber 12 and serves as the detection end 40. The switch button 43 is movably installed on the housing 1. The second circuit board 41 is installed in the receiving cavity 11 and electrically connected to the alcohol sensor 42 and the switch button 43.

[0064] In use, press the switch button 43. After receiving the power-on signal, the second circuit board 41 powers on the alcohol sensor 42. The alcohol sensor 42 will detect changes in the concentration of alcohol gas. When the concentration of alcohol gas increases, the resistance of the alcohol sensor 42 will change, thus affecting the output signal of the circuit. The alcohol concentration is determined by measuring the change in this output signal to complete the test. After the test is completed, press the switch button 43 again. After receiving the power-off signal, the second circuit board 41 will control the alcohol sensor 42 to turn off.

[0065] See attached Figure 1 -Attached Figure 16 The sterilization unit 5 can be of various types, such as high-temperature sterilization type, ionizing radiation sterilization type, microwave sterilization type, etc., and all of these types belong to the prior art. Therefore, the present invention does not limit the specific type of sterilization unit 5. For ease of understanding, this case takes ionizing radiation sterilization type as an example: Specifically, sterilization unit 5 includes ultraviolet lamp 51, which is electrically connected to the second circuit board 41.

[0066] In use, the ultraviolet lamp 51 is powered on via the second circuit board 41. The ultraviolet lamp 51 radiates short-wave ultraviolet light with a wavelength of 253.7nm into the air chamber 12. This wavelength of ultraviolet light has the strongest bactericidal ability and can destroy the DNA or RNA of microorganisms, causing them to lose their ability to reproduce, thereby achieving the purpose of disinfection. After disinfection is completed, the ultraviolet lamp 51 is powered off after receiving the shutdown signal via the second circuit board 41.

[0067] It should be noted that in this utility model, a corresponding control program can be preset for the second circuit board 41 so that the start and stop of the alcohol sensor 42 and the ultraviolet lamp 51 can be directly controlled by the switch button 43. The control program can be set as follows: when the user presses the switch button 43 for the first time, the alcohol sensor 42 is started; when the user presses the switch button 43 for the second time, the alcohol sensor 42 is turned off; when the user presses the switch button 43 for the third time, the ultraviolet lamp 51 is started; when the user presses the switch button 43 for the fourth time, the ultraviolet lamp 51 is turned off; when the user presses the switch button 43 for the fifth time, the alcohol sensor 42 is restarted, and so on, with each cycle consisting of four times. Alternatively, a control button (not shown in the figure) electrically connected to the second circuit board 41 can be installed separately on the housing 1 to control the start and stop of the ultraviolet lamp 51.

[0068] Whether the UV lamp 51 is started or stopped using a switch button 43 or a control button, both are conventional technical means in the field of electronics. Therefore, this utility model does not impose any restrictions on this method, nor does it elaborate on the specific circuit structure and principle.

[0069] See attached Figure 1 -Attached Figure 16The housing 1 is also hinged to a cover 15 for covering the heating wire part 32. The design of the cover 15 can increase the aesthetics and cover the heating wire part 32 when not in use, so as to prevent the heating wire part 32 from being exposed and corroded for a long time.

[0070] See attached Figure 1 -Attached Figure 16 The present invention also includes a power supply unit 6 and a display unit 7; the power supply unit 6 includes a battery 61 and a charging port 62, the battery 61 is installed in the housing 11 and electrically connected to the first circuit board 31 and the second circuit board 41, the charging port 62 is installed on the housing 1 and electrically connected to the first circuit board 31 or the second circuit board 41; the display unit 7 includes a display panel 71, the display panel 71 is installed on the housing 1 and electrically connected to the second circuit board 41.

[0071] Specifically, during use, the battery 61 supplies power to the heating wire 32, the alcohol sensor 42, the ultraviolet lamp 51, and the display panel 71 through the first circuit board 31 and / or the second circuit board 41, respectively. When the battery 61 is low on power, it can be charged by connecting an external power source through the charging port 62. The display panel 71 is designed to display the data results of the alcohol test for the user to view intuitively.

[0072] It should be noted that, considering that the alcohol testing unit 4 and the sterilization unit 5 are not frequently used, and the built-in battery 61 would increase the volume of the housing 1, if the ignition unit 3 is a gas ignition type, in order to save manufacturing costs and reduce the overall volume of the housing 1, a power interface for electrically connecting the second circuit board 41 (not shown in the figure) can be directly set on the housing 1. When alcohol testing or disinfection is required, the power interface can be plugged into an external power source such as a power bank or socket to supply power to the alcohol sensor 42 and the sterilization lamp separately. The power supply method used varies depending on the situation, and this utility model does not impose any restrictions on it.

[0073] See attached Figure 1 -Attached Figure 16 The display unit 7 also includes an indicator light 72, which is mounted on the housing 1 and electrically connected to the second circuit board 41 to display the remaining power of the battery 61 and the on / off status of the alcohol sensor 42 and the ultraviolet lamp 51. Therefore, the design of the indicator light 72 makes it convenient for users to control the charging time and prevents users from forgetting to turn off the alcohol sensor 42 and the ultraviolet lamp 51.

[0074] It should also be noted that, although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application.

Claims

1. A lighter with an alcohol testing function, characterized in that, include: The housing (1) has an internal cavity (11) and an air cavity (12), and the tail end of the housing (1) has an air blowing hole (121) that connects the air cavity (12) to the outside. End cap (2), the end cap (2) is disposed at the tail end of the housing (1) to cover or open the air hole (121). Ignition unit (3), the ignition unit (3) is installed in the receiving cavity (11), and its ignition end (30) extends through the housing (1) to the outside; An alcohol testing unit (4) is installed in the receiving cavity (11) and its detection end (40) extends into the air cavity (12).

2. A lighter with an alcohol testing function according to claim 1, characterized in that, The housing (1) is also provided with an exhaust port (122) at the tail end, which connects to the air chamber (12). The gas in the air chamber (12) can be discharged to the outside through the exhaust port (122). The end cap (2) can simultaneously cover or open the blowing port (121) and the exhaust port (122).

3. A lighter with an alcohol testing function according to claim 2, characterized in that, The air blowing hole (121) and the air vent (122) are located on the same plane at the tail end of the housing (1), and the air vent (122) is offset from and away from the air blowing hole (121).

4. A lighter with an alcohol testing function according to claim 3, characterized in that, The inner wall of the air chamber (12) is provided with a conduit (123), one end of the conduit (123) is connected to the air inlet (121), and the other end of the conduit (123) is connected to the air chamber (12) and extends to the detection end (40) of the alcohol testing unit (4).

5. A lighter with an alcohol testing function according to claim 3, characterized in that, The end cap (2) is hinged to the tail end of the housing (1) on one side, and a buckle (2k) is provided on the other side of the end cap (2). The tail end of the housing (1) is also provided with a bayonet (1k). When the end cap (2) is flipped to close the air blowing hole (121) and the exhaust hole (122), the buckle (2k) engages with the bayonet (1k).

6. A lighter with an alcohol testing function according to claim 2, characterized in that, The housing (1) has a protruding nozzle (13) at its tail end. The nozzle (13) is hollow inside and connected to the air chamber (12). The blowing hole (121) is located on the bottom surface of the nozzle (13), and the exhaust hole (122) is located on the side of the nozzle (13). Both the blowing hole (121) and the exhaust hole (122) are connected to the outside and the inside of the nozzle (13). The end cap (2) can enclose or expose the nozzle (13).

7. A lighter with an alcohol testing function according to claim 6, characterized in that, The end cap (2) has a cavity (20) inside. The tail end of the housing (1) is provided with a protrusion (14) around the air nozzle (13). When the cavity (20) is fitted with the air nozzle (13), the protrusion (14) is press-fitted with the cavity (20) to fix the end cap (2) at the tail end of the housing (1).

8. A lighter with an alcohol testing function according to claim 1, characterized in that, It also includes a sterilization unit (5) installed in the air chamber (12) to eliminate bacteria in the air chamber (12).

9. A lighter with an alcohol testing function according to claim 8, characterized in that, The ignition unit (3) includes a first circuit board (31), a heating wire (32), and an ignition button (33). The heating wire (32) is installed at the head end of the housing (1) and serves as the ignition end (30). The ignition button (33) is movably installed on the housing (1). The first circuit board (31) is installed in the receiving cavity (11) and electrically connected to the heating wire (32) and the ignition button (33). The alcohol testing unit (4) includes a second circuit board (41), an alcohol sensor (42), and a switch button (43). The alcohol sensor (42) is installed in the gas chamber (12) and serves as the detection end (40). The switch button (43) is movably installed on the housing (1). The second circuit board (41) is installed in the receiving cavity (11) and electrically connected to the alcohol sensor (42) and the switch button (43). The sterilization unit (5) includes an ultraviolet lamp (51), which is electrically connected to the second circuit board (41).

10. A lighter with an alcohol testing function according to claim 9, characterized in that, It also includes a power supply unit (6) and a display unit (7); the power supply unit (6) includes a battery (61) and a charging port (62), the battery (61) is installed in the housing (11) and electrically connected to the first circuit board (31) and the second circuit board (41), the charging port (62) is installed on the housing (1) and electrically connected to the first circuit board (31) or the second circuit board (41); the display unit (7) includes a display panel (71), the display panel (71) is installed on the housing (1) and electrically connected to the second circuit board (41) to display the data results of the alcohol test.

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