Alcohol detector probe with UV disinfection

Abstract

The present invention relates to an alcohol detector probe with ultraviolet disinfection. The alcohol detector probe includes an alcohol detection probe body, and the alcohol detection probe body includes a shell, and an air inlet is provided at the front end of the shell facing the blowing direction, and at least one exhalation sampling port and an exhalation pressure detection port are provided in the air inlet; the inner surface of the air inlet facing the blowing direction is provided with at least one ultraviolet light source, and the irradiation angle of the ultraviolet light source can cover the entire air inlet, and the ultraviolet light source is an ultraviolet light source with a sterilization effect; when the alcohol detection probe body completes a blow measurement, the ultraviolet light source automatically lights up and irradiates for a certain period of time to kill viruses and bacteria on the air inlet. The alcohol detector probe with ultraviolet disinfection of the present invention can be automatically disinfected after each measurement using a fast and automatic disinfection method to prevent the spread of the epidemic and facilitate measurement; and it can also prevent damage to the person being tested during disinfection.

Description

Technical Field

[0001] The invention relates to alcohol detection equipment, in particular to an alcohol detector probe with ultraviolet disinfection. Background Art

[0002] Drinking alcohol can lead to a decrease in attention and judgment. For workers in some dangerous or important positions, going to work after drinking may pose a safety hazard. Therefore, these personnel are required to take an alcohol test using a pre-job alcohol tester before going to work every day. If they are found to be working after drinking, they will be subject to internal punishment.

[0003] The equipment used for pre-employment alcohol testing is called a pre-employment alcohol tester. There are three common types: wall-mounted, desktop, and stand-up. Regardless of the type, a pre-employment alcohol tester generally consists of an alcohol detection probe and a main unit. The alcohol detection probe measures exhaled breath pressure and alcohol content, while the main unit displays, stores, or transmits the test results. The alcohol detection probe can be built into the main unit or located independently outside the main unit.

[0004] When using a pre-job alcohol tester, the person being tested needs to blow into the air inlet of the alcohol detection probe to start the measurement process. Therefore, the front end of the alcohol detection probe will be stained with saliva and other body fluid components exhaled by the person being tested. At present, how to prevent the spread of the epidemic during the alcohol detection process is also a problem that must be considered by pre-job alcohol testers. Chinese patent application number 201922330100.1 discloses an exhaled breath alcohol content tester with a disinfection and sterilization device. Its alcohol testing unit is located in a storage box. At the same time, there is also a disinfection and sterilization unit in the storage box that uses ultraviolet (UV) light for disinfection. When the breath test is performed, the storage box is manually opened, and the alcohol detection unit exposes the breath port for breath testing. When the breath test is completed, the storage box is manually closed, and the disinfection and sterilization unit is started to disinfect with UV light. The storage box needs to be closed during disinfection, and the storage box needs to be opened again when in use. Since many people will be measured in a short period of time when on the job, frequent opening and closing of the storage box is not very convenient and is also easy to damage the storage box. In addition, in actual use, the pre-job alcohol tester needs to perform each measurement quickly, and it is impossible to put it away and stop working for disinfection after each measurement as in the aforementioned patent.

[0005] In addition, the breath collection structure of the alcohol detection probe will also affect the blowing process. Chinese patent application number 201630462881.9 discloses a wall-mounted exhaled breath alcohol content detector. Its alcohol detection probe is located inside the main unit and collects the exhaled gas through a trumpet mouthpiece. The pressure detection port (or airflow detection port) and the breath alcohol sampling port are generally hidden deep inside the main unit. It is necessary to blow hard and for a long time until a sufficient amount of gas is blown out to start the pressure detection and breath alcohol sampling. Therefore, this design requires the person being tested to get close to the alcohol detector and blow hard and for a long time to start the measurement, which is inconvenient to use. Moreover, the trumpet mouthpiece and the exhalation channel connected to it have no air outlet. When blowing, the gas will rebound after hitting the trumpet mouthpiece, affecting the user experience.

[0006] Furthermore, whether the alcohol detection probe is easy to blow into is also a key factor in user experience. Increasing the sensitivity of the exhaled pressure detection by adjusting the detection circuit or the corresponding software algorithm can increase the ease of blowing. However, if the blowing sensitivity is too high, the surrounding wind may cause misjudgment and automatic blowing, affecting user experience. Therefore, the blowing sensitivity is difficult to set.

[0007] Therefore, it is necessary to design an alcohol detector probe with ultraviolet disinfection, which can automatically disinfect after each measurement using a fast and automatic disinfection method to prevent the spread of the epidemic and facilitate measurement; at the same time, it can achieve the effect of being convenient for blowing and not easy to misjudge the blowing. Summary of the Invention

[0008] Therefore, the object of the present invention is to provide an alcohol detector probe with ultraviolet disinfection, which can be automatically disinfected after each measurement using a rapid and automatic disinfection method to prevent the spread of the epidemic and facilitate measurement.

[0009] To achieve the above-mentioned objectives, the present invention provides an alcohol detector probe with ultraviolet disinfection, which includes an alcohol detector probe body; the alcohol detector body includes a shell, a blow pipe is provided at the front end of the shell facing the blowing direction, an air inlet is provided at the front end of the air pipe, and at least one exhalation sampling port and an exhalation pressure detection port are provided in the air inlet; at least one ultraviolet light source is provided on the inner surface of the air inlet facing the blowing direction, the irradiation angle of the ultraviolet light source can cover the entire air inlet, and the ultraviolet light source is a ultraviolet light source with a bactericidal effect; when the alcohol detection probe body completes a blow measurement, the ultraviolet light source automatically lights up and irradiates for a certain period of time to kill viruses and bacteria on the air inlet.

[0010] The exhaled breath sampling port is connected to the alcohol sensor and the air pump in sequence, and the exhaled breath pressure detection port is connected to the pressure sensor.

[0011] The air inlet is a concave structure, and an exhalation sampling port and an exhalation pressure detection port are located on the concave structure of the air inlet to facilitate the detection of exhalation pressure and sampling of exhaled gas.

[0012] Wherein, an air outlet pipe is provided at the lower end of the air blowing pipe for discharging the gas blown into the air blowing pipe through the air inlet.

[0013] Wherein, the ultraviolet light source is an ultraviolet light emitting diode device.

[0014] Wherein, ultraviolet light sources are provided on both sides of the inner surface of the air inlet of the alcohol detection head body facing the blowing direction, and the light-emitting surfaces of the ultraviolet light sources are respectively directed to the opposite sides.

[0015] Wherein, the irradiation time of the ultraviolet light source is set to 15 seconds to 90 seconds.

[0016] Among them, the alcohol detection head body is also provided with a distance sensor, which is used to detect whether there is a person approaching within a preset distance in front of the alcohol detection head body. When there is no person approaching within the preset distance, the ultraviolet light source automatically lights up and irradiates for a certain period of time to kill viruses and bacteria on the air inlet.

[0017] Among them, the alcohol detection head body is also provided with a distance sensor, which is used to detect whether there is a person approaching within a preset distance in front of the alcohol detection head body. When there is no person approaching within the preset distance, the pressure sensor does not perform pressure detection, and breath sampling cannot be started at this time; when there is a person approaching within the preset distance, the pressure sensor allows pressure detection, and if there is a blow, breath sampling can be started at this time.

[0018] Wherein, the distance sensor is an ultrasonic sensor or an infrared distance sensor.

[0019] Wherein, a transparent lens is provided in front of the distance sensor to prevent foreign matter from affecting the distance sensor.

[0020] Wherein, the lens is fixed to the distance sensor by transparent double-sided tape.

[0021] Wherein, the preset distance is 30 centimeters.

[0022] It also includes a flexible connecting tube; both ends of the flexible connecting tube are provided with easily detachable connecting structures for connecting to the alcohol detection head body and the host of the alcohol detector respectively; a wire is provided in the flexible connecting tube, one end of the wire is connected to the circuit of the alcohol detection head body, and the other end is connected to the circuit of the host.

[0023] To achieve the above-mentioned purpose, the present invention also provides an alcohol detector, which includes an alcohol detector probe with ultraviolet disinfection as described above.

[0024] In summary, the alcohol detector probe with ultraviolet disinfection of the present invention can be automatically disinfected after each measurement using a rapid and automatic disinfection method to prevent the spread of the epidemic and facilitate measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The technical solutions and other beneficial effects of the present invention will be made apparent by describing in detail the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0026] In the accompanying drawings,

[0027] Figure 1 This is a schematic diagram of an explosion of a preferred embodiment of the alcohol detection probe with ultraviolet disinfection of the present invention;

[0028] Figure 2A This is a schematic diagram of the assembly of a preferred embodiment of the alcohol detection probe with ultraviolet disinfection of the present invention;

[0029] Figure 2B for Figure 2A AA direction cross-sectional view;

[0030] Figure 2C This is a schematic diagram of the internal structure of a preferred embodiment of the alcohol detection probe with ultraviolet disinfection of the present invention after removing the upper shell;

[0031] Figure 3A A bottom view of the air blow tube of a preferred embodiment of the alcohol detection probe with ultraviolet disinfection of the present invention;

[0032] Figure 3B is a cross-sectional schematic diagram of 3A;

[0033] Figure 4A A top view of the air blowpipe of a preferred embodiment of the alcohol detection probe with ultraviolet disinfection of the present invention;

[0034] Figure 4B for Figure 4A CC direction cross-sectional view;

[0035] Figure 4C for Figure 4A DD direction cross-sectional view. DETAILED DESCRIPTION

[0036] See also Figure 1 、 Figure 2A 、 Figure 2B and Figure 2C , Figure 1 This is a schematic diagram of an explosion of a preferred embodiment of the alcohol detection probe with ultraviolet disinfection of the present invention. Figure 2A This is a schematic diagram of the assembly of a preferred embodiment of the alcohol detection probe with ultraviolet disinfection of the present invention. Figure 2B for Figure 2A FIG2 is a cross-sectional view taken along the AA direction, and FIG2C is a schematic diagram of the internal structure of the preferred embodiment with the upper shell removed. The above drawings mainly include the alcohol detection probe body 10, the flexible connecting tube 20, and the connection base 31 of the alcohol detector main unit connected in sequence. In other words, the alcohol detector corresponding to this preferred embodiment of the alcohol detection probe consists of the alcohol detection probe body 10, the flexible connecting tube 20, and the main unit.

[0037] Combine Figures 4A to 4C , Figure 4A 4B is a cross-sectional view taken along the CC direction of FIG. 4A , and 4C is a top view of the blowing tube of the preferred embodiment. Figure 4A DD direction cross-sectional view. In this preferred embodiment, the alcohol detection probe body 10 mainly includes a shell composed of an upper shell 17 and a lower shell 18. An air blowing pipe 16A is provided at the front end of the shell of the alcohol detection probe body 10. The air blowing pipe 16A is provided with an air inlet 16 facing the blowing direction. The air inlet 16 generally adopts a concave structure. The air inlet 16 is provided with at least one exhaled breath sampling port 11 and an exhaled breath pressure detection port 12. The air blowing pipe 16A can be a structure integrally formed with the shell, or it can be a separate component. In this embodiment, the air blowing pipe 16A is a separate component, which is clamped in the corresponding grooves of the upper shell 17 and the lower shell 18 by a circle of bones on the air blowing pipe 16A, and is fixed in the shell by the upper shell 17 and the lower shell 18. Figure 4A From the front of the air inlet 16, the exhaled air sampling port 11 is located in the upper right corner of the air inlet 16. Figure 4B As can be seen, the breath sampling port 11 extends backward and is connected to an alcohol sensor 13 and an air pump 14 in sequence through a flexible pipe (not shown in the figure), for sampling the breath of the person being tested and detecting the alcohol content therein; Figure 4A When viewed from the front of the air inlet 16, the exhalation pressure detection port 12 is located just above the air inlet 16. Figure 4CIt can be seen that the exhaled pressure detection port 12 extends backward and is connected to a pressure sensor 15 through a hose (not shown in the figure), which is used to detect the blowing process and start the air pump 14 to complete the sampling work. The upper shell 17 and the lower shell 18 can be fixed together by self-tapping screws, the main circuit board 52 can be fixed to the lower shell 18 by self-tapping screws, and the alcohol sensor 13 can also be fixed to the lower shell 18 by self-tapping screws. The air pump 14 can be fixed to the main circuit board 52 by screws. When in use, the person being tested blows air into the air inlet 16 of the alcohol detection head body 10, and the pressure sensor 15 detects the change in exhaled pressure and then starts the air pump 14 to pump air. The sampled gas undergoes a chemical reaction when passing through the alcohol sensor 13, and the generated electrical signal is analyzed by the analysis circuit in the alcohol detection head body 10 to obtain the measurement result, and the measurement result is transmitted to the host 30 through the wire. The host 30 will display, store or transmit the measurement result. It should be noted that, Figure 1 Figure 2A Figure 2B and Figure 2C The pipes connecting the alcohol sensor 13, air pump 14, pressure sensor 15, breath sampling port 11 and breath pressure detection port 12 are not shown in the figure; nor are the controllers and circuits such as the microcontroller that controls the operation of the air pump 14 or the pressure detection or alcohol content detection. Of course, the controller and circuit can also be located in the host computer, and those skilled in the art can design the corresponding circuit. Figure 4B As can be seen, the lower end of the air blowing tube 16A also has an outlet pipe 59. The upper end of the outlet pipe 59 is connected to the air inlet 16, and the lower end has an outlet 58 that is connected to the atmosphere. The outlet pipe 59 is used to discharge the gas blown into the air blowing tube 16A through the air inlet 16 during the blowing process. Of course, the design can also be designed without the outlet pipe 59. In this case, the gas blown into the air inlet 16 will return after encountering the wall of the air blowing tube 16A, but exhaled breath sampling and pressure testing can still be performed. The design of the outlet pipe 59 prevents the blown air from returning or returns very little, providing a good user experience. The concave surface of the air inlet 16 facilitates the collection of blown air. Compared with the Chinese patent application number 201630462881.9 described in the background art, the exhaled air sampling port 11 and the exhaled air pressure detection port 12 are respectively arranged at the upper right and directly above the concave surface of the air inlet 16, rather than at a further rearward position of the air blowing tube 16A (such as on the wall of the air outlet pipe 59). This facilitates the early detection of changes in the air blowing pressure during the blowing process and the early extraction of the blown air for analysis. In this way, under the same blowing conditions, the blowing force and volume can be reduced, speeding up the detection process. At the same time, the provision of the air outlet pipe 59 can guide the gas to flow out of the exhaust port of the air outlet 58, which is also conducive to the smooth blowing process and easy sampling of the blown air.

[0038] In this preferred embodiment, ultraviolet light sources 50 are provided on both sides of the inner surface of the air inlet 16 of the alcohol detection head body 10, facing the direction of the airflow. The light-emitting surfaces of the ultraviolet light sources 50 are respectively directed toward opposite sides, and the illumination angle can cover the entire air inlet 16. The ultraviolet light sources 50 are embedded in the ultraviolet light source fixing hole between the upper shell 17 and the lower shell 18. The rear end of the ultraviolet light source 50 is connected to the circuit on the main circuit board (control board) 52 via the ultraviolet light source circuit board 51. For waterproofing purposes, the outlet of the ultraviolet light source circuit board 51 at the rear end of the ultraviolet light source 50 can be sealed with a sealant. The ultraviolet light source 50 can be any common ultraviolet light source with a sterilizing effect. In this preferred embodiment, it can be a deep ultraviolet ultraviolet light-emitting diode (UV LED) device with a wavelength of approximately 275nm. In use, when a puff measurement is completed, the ultraviolet light source 50 is illuminated, and after a certain period of illumination, it can kill viruses and bacteria on the air inlet 16.

[0039] See also Figure 1 、 Figure 2A 、 Figure 2B and Figure 2C In this embodiment, to prevent ultraviolet (UV) light from damaging the eyes of the person being tested, the breathalyzer head body 10 is also equipped with a distance sensor 55 that detects the presence of a person in front of the breathalyzer head body 10. In this preferred embodiment, the distance sensor 55 is located on the abdomen of the breathalyzer head body 10, with the detection direction facing forward and downward. The distance sensor 55 can be an ultrasonic sensor, an infrared distance sensor, or another type of distance sensor, as long as it can detect the presence of a person within a certain distance (generally 1 meter) in front of the breathalyzer head. After each breathalyzer test is completed, if there is a person in front of the breathalyzer head, the distance sensor 55 can detect the distance of the person in front of the breathalyzer head. If the distance is within a certain range, the ultraviolet light source 50 will not operate. If the distance exceeds the certain range, the ultraviolet light source 50 will be illuminated and activated. The operating time of the ultraviolet light source 50 can be set by the program, for example, from 15 to 90 seconds, and can generally be set to about 1 minute. The damage of ultraviolet light to the human eye is related to power and distance, and decreases exponentially with distance. Generally, when the human eye is more than 30 cm away from the low-power ultraviolet light source 50, the damage is very small. Therefore, the distance threshold when the ultraviolet light source 50 performs disinfection work can be set to 30 cm. Of course, the setting can also be changed as needed.

[0040] In this preferred embodiment, a transparent lens 54 is provided in front of the distance sensor 55 to protect it from foreign objects. The lens 54 can be fixed to the front of the distance sensor 55 using double-sided tape or other means. The distance sensor 55 can be fixed to the distance sensor circuit board by welding. The distance sensor circuit board can be inserted into the slot on the distance sensor bracket 53. The distance sensor bracket 53 can be fixed to the lower housing 18 by screws. The distance sensor circuit board can be electrically connected to the main circuit board 52 via a flexible printed circuit board (FPCB).

[0041] In order to prevent the wind in the environment from blowing into the exhalation pressure detection port 12 in the air inlet 16, causing the pressure sensor to mistakenly judge that someone is blowing and mistakenly start the exhalation sampling measurement process, a distance sensor 55 can be used to detect whether someone is blowing. When the distance sensor 55 detects that there is no one within a certain distance around, such as 30cm, the pressure sensor is not allowed to detect, and thus the exhalation sampling will not be started. When the distance sensor 55 detects that there is someone around, the pressure sensor is allowed to detect. At this time, if someone blows, the exhalation sampling can be started to complete an alcohol measurement process. In this way, when there is no one, even if there is wind blowing towards the air inlet 16 in the environment, the pressure detection cannot be started, thereby avoiding misdetection. In this way, the effect of being convenient for blowing and not easy to misjudge blowing can be achieved.

[0042] See also Figure 3A and Figure 3B , Figure 3A This is a bottom view of the air blow tube in a preferred embodiment of the alcohol detection probe with ultraviolet disinfection of the present invention. Figure 3B for Figure 3A Schematic cross-sectional view. The ultraviolet light source 50 can be attached to the ultraviolet light source circuit board 51 to form a component. The ultraviolet light source circuit board 51 can be a flexible circuit board. The component formed by the ultraviolet light source 50 and the ultraviolet light source circuit board 51 can be inserted into the preset groove of the air inlet 16 and fixed by sealant. The air inlet 16 is further provided with an alcohol sampling tube 56 to connect the breath sampling port and the alcohol sensor. The air inlet 16 is further provided with a pressure detection tube 57 to connect the breath pressure detection port and the pressure sensor. An air outlet 58 is further provided below the air inlet 16 to discharge excess detection gas.

[0043] The alcohol detection probe with ultraviolet disinfection of the present invention can be installed and fixed to the host of any alcohol detector or other equipment (such as an attendance machine) to match the application of various occasions.

[0044] Further, see Figure 1 、 Figure 2A 、 Figure 2B and Figure 2CIn this preferred embodiment, the alcohol detection probe body 10 is connected to the main unit of the alcohol detector via a flexible connecting tube 20. The flexible connecting tube 20 can be a serpentine tube, with one end connected to the alcohol detection probe body 10 and the other end connected to the main unit of the alcohol detector. A person skilled in the art can choose a convenient way to connect the two ends of the serpentine tube to the alcohol detection probe body 10 and the main unit, respectively. For example, the two ends of the serpentine tube can be connected to the alcohol detection probe body 10 and the main unit respectively using a threaded connection or a plug-in connection, or the two ends of the serpentine tube can be connected to the alcohol detection probe body 10 and the main unit respectively using a threaded connection and a plug-in connection. The serpentine tube can be a hollow structure made of metal, with a certain rigidity to support the front end of the alcohol detection probe body 10 and the ability to bend to change the tube shape. The serpentine tube can adopt a support tube structure similar to that of a lamp or microphone. A wire 21 is provided in the serpentine tube, such as a USB cable, which can upload the test results to the main unit and provide power from the main unit to the alcohol detection probe body 10. One end of the wire 21 is used to connect to the circuit of the alcohol detection probe body 10, and the other end is used to connect to the circuit of the main unit.

[0045] One end of the serpentine is secured to the alcohol detector body 10 via a screw 40 and a nut 41. The nut 41 fits into a corresponding slot in the lower housing 18. The serpentine is screwed onto the nut 41 via a threaded connection. The sidewall of the nut 41 also features a corresponding hole for the screw 40, allowing the screw 40 to be screwed into the hole in the nut 41 to secure the serpentine and prevent it from loosening. A wire 21 is threaded through the other end of the serpentine and connected to the circuit board inside the alcohol detector body 10. A pre-set wire clip 19 inside the housing secures the wire 21 to prevent it from falling out.

[0046] The other end of the serpentine tube is connected to the main unit, and its end has a connector 22, which is covered with a locking nut 23. The connector 22 of the serpentine tube can be fixed to the connection base 31 of the main unit by screwing. The connection base 31 of the main unit is provided with a connection hole at the connection point with the connector 22 of the serpentine tube, and a locking screw 32 is provided therein, which cooperates with the locking nut 23 on the serpentine tube. After the wire 21 in the serpentine tube passes through the connection hole on the connection base 31 of the main unit, the locking nut 23 is put on the locking screw 32 of the main unit, and the locking nut 23 is tightened to fix the serpentine tube to the connection base 31 of the main unit. The end of the wire 21 that has passed through the connection hole has a plug, which can be inserted into the corresponding socket of the main unit to complete the circuit connection. The disassembly process is the opposite of the process described above and will not be described here.

[0047] The flexible connection structure can be bent freely to adjust the height of the air outlet, making it easy for people of different heights to use. The flexible connection structure is easily disassembled to connect the two ends to the alcohol detection head body and the host, making maintenance very convenient.

[0048] The alcohol detector probe with ultraviolet disinfection of the present invention can be embedded in the main body of the alcohol detector, and no serpentine tube support is required. On the other hand, the alcohol detector probe with ultraviolet disinfection of the present invention can also be installed outside the main body, and can be supported by a serpentine tube or other structures. In other words, serpentine tube support is not necessary.

[0049] The alcohol detection probe with ultraviolet disinfection of the present invention can be installed and fixed on any host and can be used in various occasions, not limited to pre-job alcohol detectors or portable alcohol detectors and other forms of alcohol detectors.

[0050] In summary, the alcohol detection probe with ultraviolet disinfection of the present invention can be automatically disinfected after each measurement using a rapid and automatic disinfection method to prevent the spread of the epidemic and facilitate measurement; and can prevent damage to the person being tested during disinfection.

[0051] As described above, for ordinary technicians in this field, various other corresponding changes and modifications can be made based on the technical solutions and technical concepts of the present invention, and all these changes and modifications should fall within the scope of protection of the claims attached to the present invention.

Claims

1. An alcohol detector probe with ultraviolet disinfection, characterized in that: The alcohol detector comprises a probe body; the alcohol detector body comprises a shell, a blowpipe is provided at the front end of the shell facing the blowing direction, an air inlet is provided at the front end of the blowpipe, the air inlet is a concave structure, at least one exhaled breath sampling port and an exhaled breath pressure detection port are provided in the air inlet, the exhaled breath sampling port and the exhaled breath pressure detection port are located on the concave structure of the air inlet, so as to facilitate the detection of exhaled breath pressure and sampling of exhaled gas; the exhaled breath sampling port is connected to an alcohol sensor and an air pump in sequence, and the exhaled breath pressure detection port is connected to a pressure sensor; at least one ultraviolet light source is provided on the inner surface of the air inlet facing the blowing direction, the irradiation angle of the ultraviolet light source can cover the entire air inlet, and the ultraviolet light source is a sterilizing ultraviolet light source; The alcohol detection head body is also provided with a distance sensor, which is used to detect whether there is a person approaching within a preset distance in front of the alcohol detection head body; When the alcohol detection probe body completes a blow measurement and no one is approaching within a preset distance, the ultraviolet light source automatically lights up and irradiates for a certain period of time to kill viruses and bacteria on the air inlet; When there is no person approaching within the preset distance, the pressure sensor does not perform pressure detection, and breath sampling cannot be started at this time; when there is a person approaching within the preset distance, the pressure sensor allows pressure detection, and breath sampling can be started if there is a breath.

2. The alcohol detector probe with ultraviolet disinfection as claimed in claim 1, characterized in that: An air outlet pipe is provided at the lower end of the air blowing pipe for discharging the gas blown into the air blowing pipe through the air inlet.

3. The alcohol detector probe with ultraviolet disinfection as claimed in claim 1, characterized in that: The ultraviolet light source is an ultraviolet light emitting diode device.

4. The alcohol detector probe with ultraviolet disinfection as claimed in claim 1, characterized in that: Ultraviolet light sources are provided on both sides of the inner surface of the air inlet of the alcohol detection head body facing the blowing direction, and the light-emitting surfaces of the ultraviolet light sources are respectively directed to the opposite sides.

5. The alcohol detector probe with ultraviolet disinfection as claimed in claim 1, characterized in that: The irradiation time of the ultraviolet light source is set to 15 seconds to 90 seconds.

6. The alcohol detector probe with ultraviolet disinfection as claimed in claim 1, characterized in that: The distance sensor is an ultrasonic sensor or an infrared distance sensor.

7. The alcohol detector probe with ultraviolet disinfection as claimed in claim 1, characterized in that: The preset distance is 30 centimeters.

8. The alcohol detector probe with ultraviolet disinfection as claimed in claim 1, characterized in that: It also includes a flexible connecting tube; both ends of the flexible connecting tube are provided with easily detachable connecting structures for connecting to the alcohol detection head body and the host of the alcohol detector respectively; a wire is provided in the flexible connecting tube, one end of the wire is connected to the circuit of the alcohol detection head body, and the other end is connected to the circuit of the host.

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