High-precision blood and gas alcohol detection module
By designing a nozzle and a sponge pad to separate the mouthpiece area, and combining the collision of a baffle ball to determine the blowing force, this high-precision blood and gas alcohol detection module solves the problem of traditional alcohol detector mouthpieces easily spreading bacteria and viruses, improves detection efficiency and equipment lifespan, and ensures the effectiveness and comfort of gas sample collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN FOSEN ELECTRONICS TECH CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional alcohol detectors use a single mouthpiece, which lacks effective isolation, making it easy for bacteria and viruses from the driver's mouth to remain and spread on the mouthpiece surface.
A high-precision blood and gas alcohol detection module was designed. It uses a horn-shaped mouthpiece and a sponge pad to separate the mouthpiece area. The blowing force is judged by the sound of the baffle and the collision of the ball. It uses a silicone connector and an alcohol sensor for detection. It is equipped with an electromagnet and a buzzer for calibration and alarm.
This system allows for independent nozzle areas for each driver, reducing moisture damage to the equipment, improving detection efficiency, extending equipment lifespan, ensuring the effectiveness of gas sample collection, providing a comfortable blowing experience, and offering timely reminders.
Smart Images

Figure CN224286885U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of traffic safety management, specifically relating to a high-precision blood and gas alcohol detection module. Background Technology
[0002] Driving under the influence of alcohol is a major cause of traffic accidents. Alcohol inhibits the nervous system, reducing a driver's reaction time, judgment, and operational abilities. Statistics show that the likelihood of an accident while driving under the influence is several times, even dozens of times, higher than under normal conditions, seriously threatening public safety and property. Therefore, accurate and rapid detection of a driver's blood alcohol content is crucial for preventing and combating drunk driving.
[0003] However, traditional alcohol detectors usually use a single mouthpiece for different drivers, lacking effective isolation measures. Drivers directly contact the mouthpiece, and bacteria, viruses and other microorganisms in their mouths can easily remain and spread on the mouthpiece surface. Utility Model Content
[0004] The purpose of this invention is to provide a high-precision blood and gas alcohol detection module to solve the problem mentioned in the background art that traditional alcohol detectors use a single mouthpiece without effective isolation, and the driver can directly contact it, which can easily lead to the spread of oral bacteria and viruses remaining in the mouthpiece.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision blood and gas alcohol detection module, including a motherboard and an alcohol sensor mounted on the upper part of the motherboard;
[0006] The alcohol sensor has an air passage body on its left side for the driver to blow into.
[0007] A silicone connector is provided between the gas circuit body and the alcohol sensor.
[0008] The front side of the air passage body is provided with a horn nozzle, and the inside of the horn nozzle is provided with multiple sponge pads.
[0009] Preferably, the circular inner wall of the horn mouth is provided with a fixing frame, and two breathable meshes a are provided on one side of the fixing frame.
[0010] Preferably, a fixing head is fixedly connected to the outer wall of the right end of the horn nozzle for screw connection and fixation with the air passage body, and the inner circular wall of the fixing head is provided with two baffles.
[0011] Preferably, both baffles are provided with a breathable mesh b inside to allow gas to pass through, and a small ball is provided between the two baffles so that it will collide with the baffles and make a sound during the blowing process.
[0012] Preferably, the two breathable meshes a and the sponge pad are placed in a cross-shaped arrangement, and the edge of the flared nozzle is rounded.
[0013] Preferably, the upper end of the motherboard is provided with a bracket, and an electromagnet is provided inside the bracket.
[0014] Preferably, an air bladder is provided on the left side of the electromagnet, and an air tube is provided between the alcohol sensor and the bracket.
[0015] Preferably, a buzzer is provided on the upper outer wall of the motherboard, a line interface is provided on the right side of the buzzer, and an airflow sensor is provided on the upper end of the motherboard.
[0016] Compared with the prior art, this utility model provides a high-precision blood and gas alcohol detection module, which has the following beneficial effects:
[0017] 1. By installing a horn mouthpiece and a sponge pad, when multiple drivers are tested for alcohol separately, the horn mouthpiece can separate the mouthpieces on the main body of the air circuit, so that the mouthpiece area used by each driver is relatively independent and does not enter the driver's mouth, but only fits the facial area around the driver's mouth. At the same time, the internal sponge pad can absorb moisture during the blowing process, which can effectively reduce the damage of moisture to the testing equipment, extend the service life of the equipment, and reduce the maintenance and replacement costs of the equipment.
[0018] 2. By installing baffles and a small ball, when the driver blows air, the sound of the small ball colliding between the two baffles can be used to determine whether the driver is blowing air correctly. This allows for detection from the initial stage of the blowing process. If the blowing force is too weak, the small ball will not make a noticeable collision, and the testing personnel can promptly remind the driver to adjust the blowing method to avoid wasting time on ineffective blowing. This ensures that gas samples for testing can be effectively collected from the initial stage of the blowing process, improving the overall efficiency of the testing process. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of a high-precision blood and gas alcohol detection module according to the present invention.
[0020] Figure 2 This is a front view structural diagram of a high-precision blood and gas alcohol detection module according to the present invention.
[0021] Figure 3 This is a partial structural schematic diagram of the side cross-section of the flared mouth area of this utility model.
[0022] Figure 4 This is a partial structural schematic diagram of the side cross-section of the fixed head area of this utility model.
[0023] In the diagram: 1. Airbag; 2. Electromagnet; 3. Bracket; 4. Main board; 5. Air tube; 6. Buzzer; 7. Airflow sensor; 8. Air circuit body; 9. Silicone connector; 10. Alcohol sensor; 11. Nozzle; 12. Circuit interface; 13. Breathable mesh a; 14. Fixing bracket; 15. Sponge pad; 16. Fixing head; 17. Baffle; 18. Breathable mesh b; 19. Small ball. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] This utility model provides, for example Figure 1-4 The high-precision blood and gas alcohol detection module shown includes a motherboard 4 and an alcohol sensor 10 mounted on the upper part of the motherboard 4.
[0026] An air passage body 8 is provided on the left side of the alcohol sensor 10 for the driver to blow into.
[0027] A silicone connector 9 is provided between the air circuit body 8 and the alcohol sensor 10. The main board 4 serves as the control and data processing center of the entire module, playing a key role in coordinating the work of various components and processing and analyzing data. The air circuit body 8 is the direct area of the driver's breath. When the driver blows into the air circuit body 8, the exhaled gas carries its own alcohol component into the air circuit body 8. The silicone connector 9 ensures that all gas entering the air circuit body 8 can reach the alcohol sensor 10 for detection smoothly. When the gas containing alcohol component transmitted through the air circuit body 8 and the silicone connector 9 arrives, the sensitive element inside the alcohol sensor 10 will undergo a specific chemical reaction or physical action with the alcohol.
[0028] A horn 11 is provided on the front side of the air circuit body 8. Multiple sponge pads 15 are provided inside the horn 11. When the driver blows air, the horn 11 can reduce the occurrence of contact with the air circuit body 8. The sponge pads 15 are located inside the horn 11. During the driver's blowing process, the water vapor in the exhaled air will be absorbed by the sponge pads 15. This can not only effectively reduce the damage of water vapor to subsequent detection equipment and extend the service life of the equipment, but also prevent water vapor from affecting the accuracy of the detection results.
[0029] like Figure 3 As shown, a fixing frame 14 is provided on the circular inner wall of the horn mouth 11, and two breathable nets a13 are provided on one side of the fixing frame 14.
[0030] The fixing frame 14 restricts the position of the breathable net a13 and the sponge pad 15, and the cross-placed breathable net a13 and sponge pad 15 do not obstruct the flow of gas when absorbing water vapor.
[0031] like Figure 4 As shown, a fixing head 16 is fixedly connected to the outer wall of the right end of the nozzle 11, so as to be screwed and fixed to the air passage body 8. Two baffles 17 are provided on the circular inner wall of the fixing head 16. A breathable mesh b18 is provided inside the two baffles 17 to allow gas to pass through. A small ball 19 is provided between the two baffles 17 so that it will collide with the baffles 17 to make a sound during the blowing process.
[0032] When the driver blows air, the airflow pushes the small ball 19 to collide between the two baffles 17, making a sound, which can be used to determine whether the driver is blowing air normally.
[0033] like Figure 3 As shown, the two breathable nets a13 and the sponge pad 15 are placed in a cross-shaped arrangement, and the edge of the flared mouth 11 is rounded.
[0034] The nozzle 11 has a rounded edge, which better fits the facial area around the driver's mouth and provides a comfortable blowing experience.
[0035] like Figure 1 As shown, a bracket 3 is provided at the upper end of the main board 4, an electromagnet 2 is provided inside the bracket 3, an airbag 1 is provided on the left side of the electromagnet 2, an air tube 5 is provided between the alcohol sensor 10 and the bracket 3, a buzzer 6 is provided on the upper outer wall of the main board 4, a line interface 12 is provided on the right side of the buzzer 6, and an airflow sensor 7 is provided at the upper end of the main board 4.
[0036] The detection module is connected to an external data transmission device via line interface 12. Electromagnet 2 works on the principle of electromagnetic induction. When the main board 4 provides current to electromagnet 2, electromagnet 2 generates a magnetic field. When electromagnet 2 generates a magnetic field, it may attract the airbag 1 or drive the relevant mechanical structure to squeeze the airbag 1 through the magnetic field. After the airbag 1 is squeezed, it will expel the internal gas through the air tube 5. This process can be used to calibrate or clean the alcohol sensor 10. The air tube 5 serves as a gas transmission channel to deliver the gas expelled by the airbag 1 to the alcohol sensor 10. Buzzer 6 is an electronic component that can convert electrical signals into sound signals. When the main board 4 detects a specific event, such as the alcohol content exceeding a preset threshold or a malfunction of the detection equipment, it will send an electrical signal to buzzer 6. Buzzer 6 will emit different types of sound alarms according to the frequency and intensity of the received electrical signal to attract the attention of people around.
[0037] The materials used in this embodiment are as follows: The motherboard 4 serves as the control and data processing center of the entire module, playing a key role in coordinating the work of various components and processing and analyzing data. The air passage body 8 is the direct area of action of the driver's breath. When the driver blows into the air passage body 8, the exhaled gas carries its own alcohol component into the air passage body 8. The silicone connector 9 ensures that all gas entering the air passage body 8 can smoothly reach the alcohol sensor 10 for detection. When the gas containing alcohol component transmitted through the air passage body 8 and the silicone connector 9 arrives, the sensitive element inside the alcohol sensor 10 will undergo a specific chemical reaction or physical action with the alcohol. When the driver blows, the mouthpiece 11 can reduce the occurrence of contact with the air passage body 8. The sponge pad 15 is placed inside the mouthpiece 11. During the driver's breath-blowing process, the moisture in the exhaled gas will be absorbed by the sponge pad 15. This can not only effectively reduce the damage of moisture to subsequent detection equipment and extend the service life of the equipment, but also prevent moisture from affecting the accuracy of the detection results.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-precision blood and gas alcohol detection module, comprising a motherboard (4) and an alcohol sensor (10) mounted on the upper end of the motherboard (4). The alcohol sensor (10) has an air passage body (8) on its left side for the driver to blow into it. A silicone connector (9) is provided between the gas circuit body (8) and the alcohol sensor (10). characterized in that The front side of the air passage body (8) is provided with a horn mouth (11), and the inside of the horn mouth (11) is provided with multiple sponge pads (15).
2. The high-precision blood and gas alcohol detection module according to claim 1, characterized in that: The inner circular wall of the horn mouth (11) is provided with a fixing frame (14), and two breathable nets a (13) are provided on one side of the fixing frame (14).
3. The high-precision blood and gas alcohol detection module according to claim 1, characterized in that: A fixing head (16) is fixedly connected to the outer wall of the right end of the horn mouth (11) to be screwed and fixed to the air passage body (8). The circular inner wall of the fixing head (16) is provided with two baffles (17).
4. The high-precision blood and gas alcohol detection module according to claim 3, characterized in that: Both baffles (17) are provided with a breathable mesh b (18) for gas to pass through, and a small ball (19) is provided between the two baffles (17) to make a sound when the air is blown out.
5. A high-precision blood and gas alcohol detection module according to claim 2, characterized in that: The two breathable nets a (13) and the sponge pad (15) are placed in a cross-shaped manner, and the edge of the horn mouth (11) is arc-shaped.
6. The high-precision blood and gas alcohol detection module according to claim 1, characterized in that: The upper end of the motherboard (4) is provided with a bracket (3), and an electromagnet (2) is provided inside the bracket (3).
7. A high-precision blood and gas alcohol detection module according to claim 6, characterized in that: An airbag (1) is provided on the left side of the electromagnet (2), and an air tube (5) is provided between the alcohol sensor (10) and the bracket (3).
8. The high-precision blood and gas alcohol detection module according to claim 1, characterized in that: A buzzer (6) is provided on the upper outer wall of the motherboard (4), a line interface (12) is provided on the right side of the buzzer (6), and an airflow sensor (7) is provided on the upper end of the motherboard (4).