A breath alcohol test stick

Abstract

The utility model discloses a kind of exhaled gas rapid alcohol detection rod, it is related to alcohol detection rod technical field.The utility model includes handle and quantitative detection mechanism, the top of handle is fixedly connected with display, the top of display is fixedly connected with detection end, the detection end includes equipment pipe, the bottom of equipment pipe is fixedly connected with display.The utility model passes through quantitative detection mechanism, using first electromagnet and second electromagnet cooperation air bag control gas suction amount, make air bag pass through single-way suction quantitative gas after air pipe and be transported to alcohol content measuring sensor by exhaust pipe, avoid alcohol content measuring sensor and cause the reaction medium excessive consumption due to continuous excessive airflow contact, to reduce sensitivity drop and detection drift phenomenon, simultaneously by airflow pipeline directional discharge detection gas, reduce the loss of alcohol content measuring sensor to invalid airflow, prolong its service life, improve detection efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of alcohol test sticks, and in particular relates to a rapid exhaled breath alcohol test stick. Background Technology

[0002] The breathalyzer rapid alcohol test stick is a portable law enforcement device that uses a battery-powered electrochemical sensor to detect the alcohol concentration in a person's breath, quickly determining whether there is drunk driving or illegal drinking. It features rapid response, ease of operation, and intuitive results, and is widely used in traffic enforcement, workplace safety inspections, and other fields.

[0003] Existing rapid breath alcohol test strips consist of an air pump connected to an electrochemical sensor via a silicone tube. During operation, the air pump continuously draws in external gas to form a stable airflow that passes through the sensor surface. Due to the large volume of gas drawn in by the pump, the continuous contact between the airflow and the sensor leads to excessive consumption of the reaction medium, causing problems such as decreased sensor sensitivity, drift in detection results, and shortened lifespan. At the same time, when excess gas passes through, unreacted gas molecules form ineffective airflow, further reducing detection efficiency and increasing sensor wear.

[0004] To address these issues, we provide a rapid breath alcohol test kit. Utility Model Content

[0005] The purpose of this invention is to provide a rapid breath alcohol test strip. Through a quantitative detection mechanism, it solves the problems in the prior art where the large amount of inhaled gas and continuous contact between the airflow and the sensor lead to excessive consumption of the reaction medium, resulting in decreased sensor sensitivity, drift in detection results, and shortened service life.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a rapid exhaled breath alcohol test stick, comprising a handle and a quantitative detection mechanism. A display is fixedly connected to the top of the handle, and a detection end is fixedly connected to the top of the display. The detection end includes a device tube, the bottom of which is fixedly connected to the display. A mounting bracket is fixedly connected to the rear side of the inner cavity of the device tube. An air intake detection mechanism is fixedly connected to the top between the two sides of the inner cavity of the device tube. The quantitative detection mechanism includes a first electromagnet, both sides of which are fixedly connected to the mounting bracket. A second electromagnet is disposed on the top of the first electromagnet, and an airbag is fixedly connected to the top of the second electromagnet. An inhalation mechanism is connected to the left side of the top of the airbag, and an exhaust pipe is connected to the top of the airbag. The end of the exhaust pipe away from the airbag passes through the mounting bracket and is connected to an alcohol content measuring sensor. An airflow pipe is connected to the top of the alcohol content measuring sensor, and the right end of the airflow pipe extends to the outside of the device tube.

[0008] The present invention is further configured such that the air intake detection mechanism includes a flared mouthpiece, both sides of which are fixedly connected to the equipment tube. The bottom of the flared mouthpiece is connected to a delivery tube, and a pressure sensor is fixedly connected to the right end of the delivery tube. Exhaust holes are provided at the top and bottom of the right end of the delivery tube. The flared mouthpiece facilitates the exhaled air entering the delivery tube, and the delivery tube can deliver the air to the pressure sensor. The pressure sensor detects the amount of exhaled air, and then the air is discharged through the exhaust holes into the equipment tube, so that the airbag can deliver it to the alcohol content measuring sensor.

[0009] The present invention is further configured such that the inhalation mechanism includes an inhalation tube, the bottom of which extends through the inner cavity of the air bag, and a one-way valve is installed on the surface of the inhalation tube. The inhalation tube and the one-way valve can cooperate with the air bag to draw in the exhaled air inside the device tube, so that it can be delivered to the inside of the alcohol content measuring sensor.

[0010] The present invention is further configured such that sliders are fixedly connected to both sides of the inner cavity of the mounting bracket, and sliding grooves are provided on both sides of the second electromagnet to cooperate with the sliders. The sliders and sliding grooves can limit the second electromagnet so that it can move up and down smoothly and prevent it from sliding during the movement.

[0011] The present invention is further configured such that a fixing ring is fixedly connected to the top of the surface of the device tube, and a warning light cover is fixedly connected to the surface of the device tube. The fixing ring can increase the strength of the device tube, and the warning light cover can flash after the alcohol content measuring sensor detects that the alcohol content exceeds the standard, so as to remind the user.

[0012] The present invention is further configured such that an exhaust pipe is connected to the top of the left side of the equipment tube, and a mesh plate is fixedly connected between the top and bottom of the inner cavity of the exhaust pipe. The exhaust pipe can discharge the gas inside the equipment tube, and the mesh plate can prevent impurities from entering the equipment tube.

[0013] The present invention is further configured such that a filter screen is fixedly connected between the two sides of the inner cavity of the horn-shaped blowpipe, and the right side of the pressure sensor is fixedly connected to the mounting bracket. The filter screen can prevent dust from entering the horn-shaped blowpipe, and the pressure sensor fixedly installed with the mounting bracket can increase the detection accuracy.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model utilizes a quantitative detection mechanism, employing a first and second electromagnet in conjunction with an airbag to control the amount of gas inhaled. The airbag draws in a fixed amount of gas unidirectionally through the suction tube and then delivers it to the alcohol content measuring sensor through the exhaust tube. This avoids excessive consumption of the reaction medium caused by continuous excessive airflow contact with the alcohol content measuring sensor, thereby reducing sensitivity loss and detection drift. Simultaneously, the gas after detection is directionally discharged through the airflow pipe, reducing the wear and tear on the alcohol content measuring sensor caused by ineffective airflow, extending its service life, and improving detection efficiency.

[0016] 2. This utility model uses an air intake detection mechanism. After filtering impurities by setting a filter screen inside the blowpipe at the horn, the gas enters the pressure sensor through the delivery pipe to detect pressure data. Combined with the exhaust port to balance the air pressure, the quantitative detection mechanism dynamically adjusts the expansion and contraction of the airbag according to the pressure, accurately controlling the amount of gas inhaled. This ensures that the alcohol content measuring sensor only contacts the effective amount of gas, avoiding excessive gas scouring that leads to medium loss and improving detection reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 A three-dimensional image of a rapid breath alcohol test kit;

[0019] Figure 2 A cross-sectional view of the device tube in a rapid breath alcohol test stick;

[0020] Figure 3 A cross-sectional view of the air intake detection mechanism in a rapid exhaled breath alcohol test stick;

[0021] Figure 4 A partial schematic diagram of the quantitative detection mechanism in a rapid breath alcohol test kit;

[0022] Figure 5A rapid breath alcohol test kit Figure 3 A magnified view of part A in the image.

[0023] In the attached diagram: 1. Handle; 2. Display; 3. Detection end; 4. Equipment tube; 5. Mounting bracket; 6. Air intake detection mechanism; 7. Quantitative detection mechanism; 71. First electromagnet; 72. Second electromagnet; 73. Airbag; 74. Inhalation mechanism; 75. Exhaust pipe; 76. Alcohol content measuring sensor; 77. Airflow duct; 61. Nozzle blowpipe; 62. Delivery pipe; 63. Pressure sensor; 64. Exhaust port; 741. Inhalation pipe; 742. One-way valve; 8. Fixing ring; 9. Warning light cover; 10. Air outlet pipe; 11. Mesh plate; 12. Filter screen. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model is a rapid exhaled breath alcohol test stick, including a handle 1 and a quantitative detection mechanism 7. A display 2 is fixedly connected to the top of the handle 1, and a detection end 3 is fixedly connected to the top of the display 2. The detection end 3 includes a device tube 4, the bottom of which is fixedly connected to the display 2. A mounting bracket 5 is fixedly connected to the rear side of the inner cavity of the device tube 4, and an air intake detection mechanism 6 is fixedly connected to the top between the two sides of the inner cavity of the device tube 4. The quantitative detection mechanism 7 includes a first electromagnet 71, both sides of which are fixedly connected to the mounting bracket 5. A second electromagnet 72 is provided on the top of the first electromagnet 71, and an airbag 73 is fixedly connected to the top of the second electromagnet 72. An inhalation mechanism 74 is connected to the left side of the top of the airbag 73, and an exhaust pipe 75 is connected to the top of the airbag 73. The end of the exhaust pipe 75 away from the airbag 73 passes through the mounting bracket 5 and is connected to an alcohol content measuring sensor 76. An airflow pipe 77 is connected to the top of the alcohol content measuring sensor 76, and the right end of the airflow pipe 77 passes through to the outside of the device tube 4.

[0027] Specifically: Display 2 is used to display the alcohol concentration data of exhaled breath; handle 1 is for the user to hold display 2 and detection end 3; detection end 3 is used to detect the alcohol concentration of exhaled breath; mounting bracket 5 is for the installation and fixation of quantitative detection mechanism 7; air intake detection mechanism 6 can detect the amount of gas inside the inhalation device tube 4, so that quantitative detection mechanism 7 can adjust the amount of inhaled gas according to pressure data; first electromagnet 71 and second electromagnet 72 are used to adjust the air intake of airbag 73 by controlling the amount of electricity; exhaust pipe 75 is used to deliver the gas inhaled by airbag 73 to alcohol content measuring sensor 76, through which alcohol content measuring sensor 76 detects the alcohol concentration of inhaled breath; airflow pipe 77 is used to discharge the detected gas from device tube 4.

[0028] Example 2

[0029] Please see Figure 1-5 Based on Embodiment 1, the air intake detection mechanism 6 includes a flared mouthpiece 61, both sides of which are fixedly connected to the equipment pipe 4. A delivery pipe 62 is connected to the bottom of the flared mouthpiece 61, and a pressure sensor 63 is fixedly connected to the right end of the delivery pipe 62. Exhaust holes 64 are provided at the top and bottom of the right end of the delivery pipe 62. The air intake mechanism 74 includes an intake pipe 741, the bottom of which extends into the inner cavity of the airbag 73. A one-way valve 742 is installed on the surface of the intake pipe 741. Slider blocks are fixedly connected to both sides of the inner cavity of the mounting bracket 5. Slide grooves that cooperate with the sliders are opened on both sides of the second electromagnet 72. A fixing ring 8 is fixedly connected to the top of the surface of the equipment tube 4. A warning light cover 9 is fixedly connected to the surface of the equipment tube 4. An air outlet pipe 10 is connected to the top of the left side of the equipment tube 4. A mesh plate 11 is fixedly connected between the top and bottom of the inner cavity of the air outlet pipe 10. A filter screen 12 is fixedly connected between the two sides of the inner cavity of the horn mouth blowpipe 61. The right side of the pressure sensor 63 is fixedly connected to the mounting bracket 5.

[0030] Specifically: the suction tube 741 and the one-way valve 742 work with the airbag 73 to draw in the breathed air inside the device tube 4, allowing it to be delivered to the alcohol content measuring sensor 76; the slider and the slide groove limit the second electromagnet 72, enabling it to move smoothly up and down and preventing it from slipping during movement; the fixing ring 8 increases the strength of the device tube 4; the warning light cover 9 flashes after the alcohol content measuring sensor 76 detects that the alcohol content exceeds the limit, to remind the user; the exhaust tube 10 expels the gas inside the device tube 4; the mesh plate 11 prevents impurities from entering the device tube 4; the filter 12 provides dust protection for the blowpipe 61; and the pressure sensor 63, which is fixed to the mounting bracket 5, increases the detection accuracy.

[0031] The working principle of this invention is as follows: The person to be tested exhales into the device tube 4 through the blowpipe 61. The exhaled gas is filtered by the filter screen 12 and then enters the delivery tube 62. The pressure sensor 63 detects the gas pressure and discharges the gas through the exhaust port 64. The quantitative detection mechanism 7 adjusts the magnetic strength of the first electromagnet 71 and the second electromagnet 72 according to the pressure data, causing the second electromagnet 72 to move the airbag 73 to contract or expand along the slide groove. The airbag 73 draws in a quantitative amount of gas unidirectionally through the suction pipe 741 and the one-way valve 742. Subsequently, the airbag 73 is pressurized and delivers the gas through the exhaust pipe 75 to the alcohol content measuring sensor 76. After the alcohol content measuring sensor 76 detects the alcohol concentration, the gas is discharged through the airflow pipe 77. At the same time, the gas outlet pipe 10 and the mesh plate 11 discharge excess gas from the equipment pipe 4. During the detection process, the warning light cover 9 flashes to indicate when the alcohol level exceeds the limit. The final detection result is displayed on the display 2. This avoids excessive consumption of the reaction medium due to continuous excessive airflow contact between the alcohol content measuring sensor 76 and the sensor, thereby reducing sensitivity loss and detection drift. At the same time, the gas is directionally discharged through the airflow pipe 77, reducing the wear and tear of the alcohol content measuring sensor 76 by ineffective airflow, extending its service life and improving detection efficiency.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A rapid breath alcohol test stick, comprising a handle (1) and a quantitative detection mechanism (7), characterized in that: A display (2) is fixedly connected to the top of the handle (1), and a detection end (3) is fixedly connected to the top of the display (2). The detection end (3) includes a device tube (4), the bottom of which is fixedly connected to the display (2), a mounting bracket (5) is fixedly connected to the rear side of the inner cavity of the device tube (4), and an air intake detection mechanism (6) is fixedly connected to the top between the two sides of the inner cavity of the device tube (4). The quantitative detection mechanism (7) includes a first electromagnet (71), both sides of which are fixedly connected to the mounting frame (5). A second electromagnet (72) is provided on the top of the first electromagnet (71). An airbag (73) is fixedly connected to the top of the second electromagnet (72). An air intake mechanism (74) is connected to the left side of the top of the airbag (73). An exhaust pipe (75) is connected to the top of the airbag (73). The end of the exhaust pipe (75) away from the airbag (73) passes through the mounting frame (5) and is connected to an alcohol content measuring sensor (76). An airflow pipe (77) is connected to the top of the alcohol content measuring sensor (76). The right end of the airflow pipe (77) passes through to the outside of the equipment pipe (4).

2. The exhaled breath rapid alcohol test strip according to claim 1, characterized in that: The air intake detection mechanism (6) includes a horn-shaped blowpipe (61), both sides of which are fixedly connected to the equipment pipe (4). The bottom of the horn-shaped blowpipe (61) is connected to a conveying pipe (62). A pressure sensor (63) is fixedly connected to the right end of the conveying pipe (62). Exhaust holes (64) are opened at the top and bottom of the right end of the conveying pipe (62).

3. The exhaled breath rapid alcohol test strip according to claim 1, characterized in that: The air intake mechanism (74) includes an air intake tube (741), the bottom of which extends into the inner cavity of the airbag (73), and a one-way valve (742) is installed on the surface of the air intake tube (741).

4. The exhaled breath rapid alcohol test strip according to claim 1, characterized in that: Both sides of the inner cavity of the mounting bracket (5) are fixedly connected to sliders, and both sides of the second electromagnet (72) are provided with sliding grooves that cooperate with the sliders.

5. The exhaled breath rapid alcohol test strip according to claim 1, characterized in that: A fixing ring (8) is fixedly connected to the top of the surface of the equipment tube (4), and a warning light cover (9) is fixedly connected to the surface of the equipment tube (4).

6. The exhaled breath rapid alcohol test strip according to claim 1, characterized in that: The top left side of the equipment tube (4) is connected to an air outlet pipe (10), and a perforated plate (11) is fixedly connected between the top and bottom of the inner cavity of the air outlet pipe (10).

7. The exhaled breath rapid alcohol test strip according to claim 2, characterized in that: A filter screen (12) is fixedly connected between the two sides of the inner cavity of the blowpipe (61), and the right side of the pressure sensor (63) is fixedly connected to the mounting bracket (5).

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