CN201607445U - Alcohol Tester - Google Patents

Abstract

The utility model provides an alcohol tester, including the tester main part, be equipped with in the tester main part and can detect the one or more inductor of pressure or air current of blowing to whether the detection user is blowing. An inner tube may be included in the tester body for inserting and holding a replaceable mouthpiece therein. The sensor may be a pressure sensor or an electromagnetic sensor. The alcohol tester also comprises an alcohol sensor and an air pump, wherein the inlet of the alcohol sensor is connected with the inner pipe, the outlet of the alcohol sensor is connected with the air pump, and the air pump is used for sucking or discharging sampled gas into or out of the alcohol sensor so as to detect the alcohol content. The alcohol sensor can also be connected with a pressure sensor for detecting whether the inlet of the alcohol sensor is blocked. The utility model discloses can prevent the deception action, also can satisfy the sanitary requirement simultaneously to can detect whether the alcohol sensor in the tester blocks up, prevent false retrieval or false retrieval.

Description

Alcohol Tester

technical field

The utility model relates to the technical field of alcohol testing, in particular to a high-quality alcohol tester suitable for police use and meeting public health requirements that can detect alcohol content in fluids.

Background technique

The police breathalyzer is a kind of alcohol tester provided to the public to detect the alcohol content in the airflow blown by the user. On the one hand, alcohol testers must meet public health requirements, and the mouthpieces used are all disposable and must be replaced frequently. On the other hand, police breathalyzers need to be able to prevent cheating, otherwise they will detect false results. Existing technology cannot really effectively prevent deception.

Utility model content

The utility model overcomes the deficiencies of the prior art and provides a new type of alcohol tester which can prevent fraudulent behavior, and can also meet the hygienic requirements, and can detect whether the alcohol sensor in the tester is blocked to prevent false detection or wrong detection.

The utility model provides an alcohol tester, which includes a main body of the tester, wherein one or more sensors capable of detecting air blowing pressure or air flow are installed in the main body of the tester to detect whether a user is blowing air.

The body of the tester may include an inner tube into which is inserted and holds a replaceable mouthpiece which can be ejected automatically or manually ejected from the inner tube.

According to a preferred solution, the sensor is a pressure sensor connected to the inner tube to detect the blowing pressure.

According to another preferred solution, the sensor is an electromagnetic sensor. Preferably, the electromagnetic sensor adopts a Hall sensor, and the blown fluid drives the magnet in the inner tube to move, and the Hall sensor detects the displacement of the magnet to detect the blowing pressure, and the magnet is reset by the elastic element.

According to the optimized design of the utility model, the alcohol tester also includes an alcohol sensor and an air pump, the inlet of the alcohol sensor is connected to the inner pipe, the outlet of the alcohol sensor is connected to the air pump, and the air pump is used to inhale or discharge the sampled gas from the alcohol sensor to perform alcohol Content detection. Wherein, the alcohol sensor can also be connected with a pressure sensor for detecting whether the inlet of the alcohol sensor is blocked.

Optionally, the main body of the tester includes two detachable parts, one of which is provided with a display screen, and the other part is provided with a control assembly. Each part of the main body of the tester can be detachably connected through structural methods including buckles or guide rails. The control components can be video players, calculators, digital cameras or printers controlled by the MCU.

The mouthpiece of the utility model can automatically eject, which is a fast, convenient and hygienic innovative function. In addition, the utility model adds a group of airflow detection components to detect the blowing air flow or pressure, so as to detect the airflow blown into the inner tube, which can prevent the user from cheating when inhaling; the utility model can also add another A set of airflow detection components detects the flow into the alcohol sensor, so as to detect whether there is a fraudulent behavior that blocks the entrance of the alcohol sensor and affects the alcohol concentration.

Description of drawings

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with examples. The advantages and implementation methods of the utility model will be more obvious. Without limitation in any sense, the drawings are schematic only and not strictly to scale. In the attached picture:

Fig. 1 is a schematic diagram of an exemplary external structure of the utility model;

Fig. 2 is a schematic structural view of the separation of the upper and lower parts of the utility model;

Fig. 3 is a schematic diagram of the upper part of the utility model;

Fig. 4 is a schematic diagram of the principle of using a pressure sensor to detect air blowing and using a pressure sensor to detect whether the entrance of the alcohol sensor is blocked;

5 is a schematic diagram of the principle of using a Hall sensor to detect air blowing;

Figures 6a, 6b and 6c are schematic diagrams of the ejection process of the reaction blow nozzle from the inner tube.

Detailed ways

As shown in Figures 1, 2, and 3, an exemplary alcohol tester includes a tester main body 10, and one or more inductors (such as Hall sensor 25 or pressure sensor 25 or pressure sensor 25) capable of detecting blowing pressure or airflow are housed in the tester main body. Sensor 19) to detect whether the user is blowing.

The tester main body 10 includes two detachable parts 11 , 12 , wherein the upper part 11 is provided with a display screen, and the lower part 12 is provided with a control assembly. The upper part 11 and the lower part 12 can be detachably connected through structural methods including buckles or guide rails. The control components can be video players, calculators, digital cameras or printers controlled by the MCU. For example, the upper part 11 of the tester is a multifunctional display platform (such as a display), which can be a clock, and the lower part 12 can be connected with a wireless module to become a wireless printer.

The tester main body 10 includes an inner tube 13 for inserting and holding a replaceable mouthpiece 14 therein. The mouthpiece 14 can be automatically ejected from the inner tube 13 or pushed out manually. An exemplary mouthpiece 14 is ejected from the inner tube 13 The pop-up schematic diagrams are shown in Figures 6a, 6b, and 6c. The mouthpiece 14 is inserted into the inner tube 13. When the push button 15 moves forward, the mouthpiece 14 is slowly removed from the inner tube 13. Because the mouthpiece 14 and the inner tube 13 are tightly fitted, there is a certain frictional resistance; when the mouthpiece 14 breaks away from the inner tube 13 in an instant, the resistance between the mouthpiece 14 and the inner tube 13 is suddenly released and ejected at a high speed. In addition, a ferrule such as silicone can be added to the interface between the mouthpiece 14 and the inner pipe 13 to enhance the connection resistance between the mouthpiece 14 and the inner pipe 13 . The automatic ejection of the mouthpiece is a fast, convenient and hygienic innovative function.

As shown in FIG. 4, according to one embodiment, the sensor employs a pressure sensor 19, which is connected to the inner tube 13 to detect the insufflation pressure. When a normal exhalation test is performed, the pressure sensor 19 will detect a positive pressure; when a wrong inhalation test is performed, the pressure sensor 19 will detect a negative pressure, so that the wrong inhalation test phenomenon can be avoided.

Alcohol tester also comprises alcohol sensor 16 and air pump 17, and the inlet of alcohol sensor 16 is connected with inner pipe 13, and the outlet of alcohol sensor 16 connects air pump 17 (for example by flexible pipe), and air pump 17 is used for sampling the gas suction or discharge alcohol Sensor 16 to detect alcohol content. Wherein, the alcohol sensor 16 can also be connected with a pressure sensor 18 for detecting whether the inlet of the alcohol sensor 16 is blocked, and the pressure sensor 18 is connected to the alcohol sensor 16 through a hose, for example. If blockage alcohol sensor 18 inlets, when air pump 17 pumps air, the output of pressure sensor 18 is different with normal situation. When the inlet of the alcohol sensor 16 is blocked, the pressure sensor 18 will detect negative pressure. In this way, the situation that the inlet of the alcohol sensor 18 is blocked can be avoided.

As shown in Figure 5, according to another embodiment, the inductor adopts an electromagnetic sensor, such as a Hall sensor 25, the magnet 26 in the inner tube 24 is driven by the blown fluid to move, and the displacement of the magnet 26 is detected by the Hall sensor 25 In order to detect the blowing pressure, the magnet 26 is reset by an elastic element such as a spring 27 . When blowing air, the air pressure drives the magnet 26 to slide horizontally, and the Hall sensor 25 senses the magnetic field (position) of the magnet 26 to output a high or low voltage.

In this embodiment that adopts the Hall sensor 25 to detect blowing, it can also have an alcohol sensor 16, an air pump 17, and a pressure sensor 18 as in the embodiment shown in accompanying drawing 4, and the difference is only the assembly of the Hall sensor 25 Instead of the pressure sensor 19 in FIG. 4 . Similarly, the inlet of the alcohol sensor 16 can be connected to the inner tube 23, and the outlet of the alcohol sensor 16 is connected to the air pump 17 (for example, through a hose), and the air pump 17 is used to inhale or discharge the sampled gas from the alcohol sensor 16 to detect the alcohol content. . Wherein, the alcohol sensor 16 can also be connected with a pressure sensor 18 for detecting whether the inlet of the alcohol sensor 16 is blocked, and the pressure sensor 18 is connected to the alcohol sensor 16 through a hose, for example. Likewise, if the alcohol sensor 18 inlet is blocked, when the air pump 17 sucks air, the output of the pressure sensor 18 is different from normal conditions. When the inlet of the alcohol sensor 16 is blocked, the pressure sensor 18 will detect negative pressure. In this way, the situation that the inlet of the alcohol sensor 18 is blocked can be avoided.

The utility model adds a group of airflow detection components to detect the flow rate or pressure of blowing air, so as to detect the airflow blown into the inner tube, so as to prevent cheating behavior caused by inhalation of the user. The utility model also adds a group of airflow detection components to detect the flow entering the alcohol sensor, so as to detect whether there is a fraudulent behavior that blocks the entrance of the alcohol sensor and affects the alcohol concentration.

Because it is used by the police, the alcohol sensor of the alcohol tester needs to have a self-test function. It is required to provide real-time alcohol sensor output waveform and to clearly observe the performance of the alcohol sensor, so as to avoid the use of invalid alcohol sensors. The alcohol tester of the utility model includes a display screen, which can realize color display. It can also include a data transmission function, which can exchange data with an external terminal through wireless data communication technologies (such as GSM, WCDMA, GPRS, CDMA 3G, WiFi, Bluetooth, etc.), and can be combined with the existing police communication.

The main body of the tester can also include a self-test function for its own alcohol sensor, which can analyze the performance of its own alcohol sensor in real time. Its output can be data or displayed graphically on the associated display. When the alcohol gas is inhaled and exhausted by the gas pump, the output voltage or current of the alcohol sensor will change. Blow alcohol gas (about 0.05% BAC) through the mouthpiece for about 6 seconds, and observe the sensitivity and real-time waveform of the alcohol sensor. If the output voltage or current is unchanged or the change is very small, it means that the sensitivity of the alcohol sensor has been lost. In addition, when the tester is self-testing, blow in air, if the real-time waveform is not a straight line, it means that the sensitivity of the sensor has been lost, and a new sensor needs to be replaced.

In addition, the utility model can further include various improvements, for example, the vehicle information can be queried by inputting the license plate number;

The preferred embodiment of the utility model has been described above with reference to the accompanying drawings. Those skilled in the art can realize the utility model in various variants without departing from the essence and spirit of the utility model. The above are only preferred and feasible embodiments of the present utility model, and are not intended to limit the scope of rights of the present utility model. All equivalent changes made by using the description and drawings of the utility model are included in the scope of rights of the utility model. Inside.

Claims (10)

1. whether an alcohol tester comprises the tester main body, it is characterized in that, one or more inductors that can detect blow gas pressure or air-flow are housed in the described tester main body, blowing to detect the user.

2. alcohol tester as claimed in claim 1 is characterized in that, comprises interior pipe in the described tester main body, is used for inserting therein and keeping removable blow gun, and described removable blow gun can eject automatically from interior pipe or manually release.

3. alcohol tester as claimed in claim 2 is characterized in that, described inductor is a pressure transducer, and it is connected to described interior pipe and goes up to detect blow gas pressure.

4. alcohol tester as claimed in claim 2 is characterized in that, described inductor is an electromagnetic sensor.

5. alcohol tester as claimed in claim 4, it is characterized in that, described electromagnetic sensor adopts Hall element, move by the magnet in the described interior pipe of the fluid drives that is blown into, thereby and detect blow gas pressure by the displacement that described Hall element detects described magnet, described magnet is resetted by flexible member.

6. as each described alcohol tester among the claim 2-5, it is characterized in that, also comprise alcohol sensor and air pump, the inlet of described alcohol sensor is connected with described interior pipe, the outlet of described alcohol sensor connects described air pump, described air pump is used for the gas of sampling is sucked or discharge alcohol sensor, detects to carry out alcohol content.

7. alcohol tester as claimed in claim 6 is characterized in that, also is connected with the pressure transducer whether inlet that is used to detect described alcohol sensor stops up on the described alcohol sensor.

8. alcohol tester as claimed in claim 1, it is characterized in that, described tester main body comprises removable two parts, wherein a part is provided with display screen, another part is provided with Control Component, described Control Component is selected from video player, counter, digital camera or the printer by MCU control, and the each several part of described tester main body carries out dismantled and assembled connection by the frame mode that comprises buckle or guide rail.

9. alcohol tester as claimed in claim 1, it is characterized in that, described tester has the alcohol sensor self-checking function, and can provide real-time alcohol sensor output waveform to observe the performance of alcohol sensor on display screen, avoids using the alcohol sensor of inefficacy.

10. alcohol tester as claimed in claim 1 is characterized in that described tester also comprises data-transformation facility, can carry out exchanges data with wireless data communication mode and exterior terminal machine.

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