Recyclable alcohol tester

Abstract

The invention discloses a recyclable alcohol tester, and relates to the field of alcohol detection, the recyclable alcohol tester comprises: a tube body, the front end of the tube body is provided with a collection port; the plate body is arranged at the collection port at the front end of the tube body, and a sensor for alcohol detection is arranged on the plate body; the overturning assemblies are arranged on the two sides of the plate body, and the overturning assemblies are used for overturning the plate body; the cleaning assembly comprises a small nitrogen cylinder, the small nitrogen cylinder is arranged at the tail of the pipe body, and a button used for opening or closing the small nitrogen cylinder is arranged on the pipe body; a breather pipe is arranged on the first connecting plate, a connecting pipe is arranged on the inner wall of the pipe body, a second connecting plate is rotationally connected to the inner wall of the pipe body, and a through hole is formed in the second connecting plate; and the switching assembly is used for rotating the position of the second connecting plate so as to switch the gas flowing path, so that the sensor on the plate body is cleaned, or the gas is guided into the collecting assembly to be collected.

Description

Technical Field

[0001] The present invention relates to the technical field of alcohol detection, and specifically to a recyclable alcohol tester. Background Art

[0002] Existing semiconductor sensor alcohol testers mainly use the gas-sensing characteristics of semiconductor materials for detection. When the exhaled gas of the person being tested contains alcohol vapor, these vapors react with the oxide on the surface of the sensor, causing a change in the resistance of the sensor. By measuring this resistance change, the alcohol concentration in the exhaled breath can be inferred. Due to its simple detection method and fast response speed, it is widely used in fields such as traffic law enforcement and enterprise safety management.

[0003] However, in actual use, alcohol testers often need to detect a large number of subjects frequently. For example, traffic police may need to continuously detect hundreds of people during road inspections. High-frequency use may cause alcohol, saliva, or food residues to remain on the surface of the sensor, affecting the accuracy and reliability of the detection. In addition, most existing alcohol detectors cannot retain the detection samples, which is not conducive to subsequent review and legal evidence collection, affecting the fairness of law enforcement. To improve the service life of the detector, a method of manually cleaning the sensor is usually adopted, but this method is cumbersome to operate, the cleaning effect is difficult to guarantee, and it is not applicable to high-intensity detection scenarios.

[0004] To solve the above problems, the existing improvement solutions mainly include two methods. One method is to perform a blood test on the person being tested after detecting the alcohol content to obtain more accurate alcohol concentration data. However, blood tests require professional equipment and personnel support, and the detection cycle is relatively long, which is not suitable for large-scale screening. The other method is to manually wipe the surface of the sensor, but it is difficult to wipe it clean due to the irregular shape of the sensor surface.

[0005] Therefore, we propose a recyclable alcohol tester. Summary of the Invention

[0006] The purpose of the present invention is to provide a recyclable alcohol tester to solve the problems raised in the above background art. To achieve the above purpose, the present invention provides the following technical solution: A recyclable alcohol tester, comprising:

[0007] A tube body, with a collection port opened at the front end of the tube body;

[0008] A plate body, which is arranged at the collection port at the front end of the tube body, and a sensor for alcohol detection is arranged on the plate body;

[0009] A flipping assembly, which is arranged on both sides of the plate body and is used to flip the plate body;

[0010] Cleaning assembly, the cleaning assembly comprising:

[0011] A small nitrogen cylinder, the small nitrogen cylinder being arranged at the tail of the pipe body, and a button for opening or closing the small nitrogen cylinder being arranged on the pipe body;

[0012] A first connecting plate, a ventilation pipe being arranged on the first connecting plate, a connecting pipe being arranged on the inner wall of the pipe body, a second connecting plate being rotatably connected to the inner wall of the pipe body, a through hole being formed in the second connecting plate, and the through hole being communicated with the air outlet of the small nitrogen cylinder through a hose;

[0013] A collection assembly, the collection assembly being arranged on the pipe body, and the collection assembly being used for collecting the gas exhaled by the tester;

[0014] A switching assembly, the switching assembly being used for rotating the position of the second connecting plate to switch the gas flow path, so as to clean the sensor on the plate body or guide the gas into the collection assembly for collection.

[0015] Preferably, the flipping assembly comprises:

[0016] A housing, the plate body being rotatably connected to the housing, the housing being slidably connected to the pipe body, connecting shafts being fixedly connected to both ends of the plate body, gears being fixedly connected to both ends of the connecting shafts, sliding grooves being arranged on both inner walls of the pipe body, and teeth being arranged in an array in the sliding grooves of the pipe body;

[0017] A partition plate, the partition plate being arranged in the housing, the partition plate being used for cooperating with the plate body to divide the housing into upper and lower cavities, a driving rod being fixedly connected to one end of the partition plate, and the driving rod being capable of moving back and forth along the extending direction of the pipe body.

[0018] Preferably, a handle is arranged on the pipe body, a driving groove is formed in the pipe body, the driving groove is divided into two parts, a vertical groove and an arc groove, and the handle is connected to the driving rod through a straight rod.

[0019] Preferably, a circular pipe is fixedly connected to one side of the housing where the connecting shaft is located, a spiral spring is arranged in the circular pipe, one end of the spiral spring is fixedly connected to the inner wall of the circular pipe, and the other end is fixedly connected to the outer wall of the connecting shaft;

[0020] A limiting block, the limiting block being fixedly connected to the inner wall of the housing, and the limiting block being used for limiting the rotation angle of the plate body.

[0021] Preferably, the collection assembly comprises:

[0022] A storage piece, wherein the storage piece is fixedly connected to the inner wall of the tube body, the storage piece is used to place a collection tube for collecting respiratory gas, the front and rear ends of the collection tube are both provided with openings, one end of the storage piece is provided with an air inlet for connecting with a ventilation tube, the other end of the storage piece is provided with an airway, the airway is divided into three sections, namely an air outlet section, a contraction section and an air inlet section, the storage piece is also provided with a connecting section, the connecting section is used to connect the collection tube with the contraction section.

[0023] Preferably, the switching component comprises:

[0024] A cylinder, wherein the cylinder is sleeved outside the driving rod, the cylinder is fixedly connected to the first connecting plate and the second connecting plate, the driving rod comprises a fixed rod and a rotating rod, the fixed rod is rotatably connected to the rotating rod, and both ends of the straight rod are fixedly connected to the handle and the rotating rod respectively;

[0025] A connecting ear is fixedly connected to the outer wall of the rotating rod. A movable groove for sliding the connecting ear is provided on the cylinder. A spring is arranged in the movable groove of the cylinder. One end of the spring is fixedly connected to the cylinder and the other end is fixedly connected to the connecting ear.

[0026] Preferably, the ventilation pipe is obliquely arranged on the connecting plate 1.

[0027] Preferably, the collecting tube is filled with silica gel and activated carbon.

[0028] The present invention has at least the following beneficial effects:

[0029] 1. Through this cleaning method, the residues on the surface of the alcohol sensor, such as residual alcohol, saliva and food crumbs, can be effectively removed, thereby maintaining the sensitivity and detection accuracy of the sensor. At the same time, because nitrogen is an inert gas, its low temperature and oxygen-free characteristics can quickly take away moisture and impurities in the gas path, avoid the influence of water vapor on the sensor, and make the detection data more accurate and reliable. In addition, when the device detects that the alcohol concentration of the subject exceeds the standard, the user can adjust the angle of connecting plate 2 by switching the component to change the airflow path. At this time, the gas exhaled by the subject will be guided to the collection component for sample retention for further analysis or verification. This structural design not only improves the convenience of the equipment, but also enhances the stability and traceability of the test results;

[0030] 2. The upper chamber can work with the cleaning component to release nitrogen from a small nitrogen bottle and blow it directly onto the surface of the board through the vent pipe to remove residues on the alcohol sensor, such as alcohol droplets, saliva or food particles, to ensure the sensitivity and detection accuracy of the sensor. At the same time, due to the inert and low-humidity characteristics of nitrogen, it can quickly take away the water vapor in the gas channel, thereby optimizing the detection environment and improving the accuracy and stability of the test results;

[0031] 3. The user can conveniently control the handle to achieve multi-functional operations of the device. When the user pushes the handle along the vertical groove part in the drive groove, the handle will transmit power through the straight rod, driving the drive rod to move linearly, and then causing the housing to slide synchronously along the direction of the pipe body. During this process, the movement of the housing will drive the plate body to perform corresponding displacement and flipping, and finally achieve the precise docking of the plate body and the partition plate, enabling the device to enter the cleaning or gas collection mode. Description of the Drawings

[0032] Figure 1 Schematic diagram of the overall structure of the present invention;

[0033] Figure 2 Schematic diagram of the detection state structure of the present invention;

[0034] Figure 3 Schematic diagram of the cleaning state structure of the present invention;

[0035] Figure 4 Schematic diagram of the collection state structure of the present invention;

[0036] Figure 5 Schematic diagram of the flipping component structure of the present invention;

[0037] Figure 6 Schematic diagram of the hose structure of the present invention;

[0038] Figure 7 Schematic diagram of the air duct structure of the present invention;

[0039] Figure 8 Schematic diagram of the pipe body structure of the present invention;

[0040] Figure 9 Schematic diagram of the handle structure of the present invention;

[0041] Figure 10 Schematic diagram of the partition plate structure of the present invention.

[0042] In the figure: 10, pipe body; 11, plate body; 20, flipping component; 30, cleaning component; 31, small nitrogen cylinder; 32, connecting plate one; 33, ventilation pipe; 34, connecting pipe; 35, connecting plate two; 36, hose; 40, collection component; 41, storage part; 42, collection pipe; 43, air duct; 50, switching component; 21, housing; 22, connecting shaft; 23, gear; 24, chute; 25, teeth; 26, partition plate; 27, drive rod; 271, handle; 272, drive groove; 273, straight rod; 221, circular pipe; 222, spiral spring; 223, limiting block; 431, air outlet section; 432, contraction section; 433, air inlet section; 434, connecting section; 51, cylinder; 52, connecting ear; 53, moving groove; 54, spring. Detailed Embodiment

[0043] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] To better understand a reusable alcohol tester provided in the embodiments of the present application, first, a brief introduction to the existing alcohol detector is given below. The existing semiconductor sensor alcohol tester is provided with a semiconductor alcohol detection sensor at the front end, which uses the gas-sensitive characteristics to detect the alcohol concentration in exhaled breath. It has fast detection and simple operation, and is widely used in law enforcement and safety management. However, frequent detection may cause alcohol, saliva or food residues to remain on the sensor surface, affecting the detection accuracy. At the same time, most devices cannot retain the detection samples, which is not conducive to rechecking and obtaining evidence. Existing improvement solutions include blood tests to improve accuracy, but they are complex in operation and long in cycle, and are not suitable for large-scale screening; or manually wiping the sensor, but it is difficult to clean thoroughly, affecting the detection reliability in high-frequency use scenarios;

[0045] The following is a brief overview of the solution of the present application. In the initial state, the plate body 11 is vertically fixed at the front end of the tube body 10, and the tester can blow air to detect the alcohol content. To ensure the accuracy of the sensor, the user can flip the plate body 11 to the horizontal and open the nitrogen cylinder 31 to release high-pressure nitrogen, which is sprayed through the pipeline to clean the surface of the plate body, effectively removing alcohol residues, saliva and impurities, and improving the detection accuracy. The low-temperature and oxygen-free characteristics of nitrogen can also prevent the influence of water vapor. When the detection exceeds the standard, the connecting plate two 35 can be adjusted to guide the air flow to the collection component 40 for sample retention, enhancing the reliability and traceability of the detection.

[0046] Embodiment 1: Please refer to Figures 1-10 , the present invention provides a technical solution: a reusable alcohol tester, comprising:

[0047] A tube body 10, with a collection port opened at the front end of the tube body 10;

[0048] A plate body 11, which is arranged at the collection port at the front end of the tube body 10, and a sensor for alcohol detection is arranged on the plate body 11;

[0049] A flipping assembly 20, which is arranged on both sides of the plate body 11, and the flipping assembly 20 is used to flip the plate body 11;

[0050] A cleaning assembly 30, the cleaning assembly 30 comprising:

[0051] A small nitrogen bottle 31, which is arranged at the rear of the tube body 10, and a button for opening or closing the small nitrogen bottle 31 is arranged on the tube body 10;

[0052] A connecting plate 1 32, on which a vent pipe 33 is disposed, a connecting pipe 34 is disposed on the inner wall of the tube body 10, a connecting plate 2 35 is rotatably connected to the inner wall of the tube body 10, a through hole is opened on the connecting plate 2 35, and the through hole is connected to the gas outlet of the small nitrogen bottle 31 through a hose 36;

[0053] A collecting component 40, which is disposed on the tube body 10 and is used to collect the exhaled gas of the test subject;

[0054] A switching assembly 50, which is used to rotate the connection plate 2 35 to switch the gas flow path, thereby cleaning the sensor on the plate body 11, or guiding the gas into the collection assembly 40 for collection;

[0055] It should be noted that, in the initial state, the plate body 11 is fixed vertically at the front end of the tube body 10, so that the entire device is in a closed state. The tester only needs to blow at the front end of the tube body 10 to perform an alcohol test to determine whether there is alcohol in his body. After the device has been used many times, in order to ensure the accuracy and cleanliness of the sensor, the user can rotate the plate body 11 to a horizontal state through the flip assembly 20, so that it is in an open position at the front end of the tube body 10. At this time, the user can press the button to open the small nitrogen bottle 31. The high-pressure nitrogen stored in the nitrogen bottle 31 will pass through the hose 36, and in turn pass through the through hole on the connecting plate 2 35, the connecting pipe 34 and the vent pipe 33 on the connecting plate 1 32, and finally directly spray onto the surface of the plate body 11;

[0056] Through this cleaning method, the residues on the surface of the alcohol sensor, such as alcohol residue, saliva and food crumbs, can be effectively removed, thereby maintaining the sensitivity and detection accuracy of the sensor. At the same time, since nitrogen is an inert gas, its low temperature and oxygen-free characteristics can quickly take away moisture and impurities in the gas path, avoid the influence of water vapor on the sensor, and make the detection data more accurate and reliable. In addition, when the device detects that the alcohol concentration of the subject exceeds the standard, the user can adjust the angle of the connecting plate 2 35 through the switching component 50 to change the airflow path. At this time, the gas exhaled by the subject will be guided to the collection component 40 for sample retention for further analysis or verification. This structural design not only improves the convenience of the equipment, but also enhances the stability and traceability of the test results.

[0057] Further as Figure 2 , Figure 4 and Figure 5As shown, it is worth to explain in detail that the flip assembly 20 includes:

[0058] The housing 21, the plate 11 is rotatably connected to the housing 21, both ends of the housing 21 are open ends, the housing 21 is slidably connected to the tube 10, the two ends of the plate 11 are fixedly connected to the connecting shaft 22, the two ends of the connecting shaft 22 are fixedly connected to the gear 23, the inner walls of both sides of the tube 10 are provided with sliding grooves 24, and the tube 10 is located in the sliding grooves 24 and is provided with teeth 25 in an array;

[0059] A partition plate 26 is disposed in the housing 21 and is used to cooperate with the plate body 11 to partition the housing 21 into two upper and lower cavities. A driving rod 27 is fixedly connected to one end of the partition plate 26 and the driving rod 27 can move forward and backward along the extension direction of the tube body 10.

[0060] It should be noted that when the user pushes the driving rod 27, the driving rod 27 will drive the housing 21 to move smoothly along the direction of the slide groove 24 of the tube body 10. During the movement of the housing 21, the gears 23 fixed at both ends of the plate body 11 also move accordingly, and gradually mesh with the teeth 25 in the slide groove 24 in the tube body 10, thereby causing the plate body 11 to rotate. As the housing 21 continues to move forward, the plate body 11 will gradually flip over until it completely overlaps with the partition plate 26. At this time, the internal space of the housing 21 is effectively divided into two independent upper and lower chambers.

[0061] In this state, the upper chamber can cooperate with the cleaning component 30 to release nitrogen from the small nitrogen bottle 31 and blow directly to the surface of the plate body 11 through the vent pipe 33 to remove residues on the alcohol sensor, such as alcohol droplets, saliva or food particles, to ensure the sensitivity and detection accuracy of the sensor. At the same time, due to the inert and low-humidity characteristics of nitrogen, it can quickly take away the water vapor in the gas channel, thereby optimizing the detection environment and improving the accuracy and stability of the test results.

[0062] At the same time, the lower chamber can cooperate with the collection component 40 and the switching component 50. When alcohol is detected in the body of the subject, the switching component 50 can change the gas flow path and guide the exhaled gas of the subject into the collection component 40 for sample preservation. This design not only ensures the high automation and convenience of the detection process, but also improves the reusability of the equipment and the traceability of the detection results.

[0063] Further as Figure 9 As shown, it is worth to explain in detail that the tube body 10 is provided with a handle 271, which is arranged at the end of the tube body 10, and the tube body 10 is provided with a driving groove 272, which is divided into a vertical groove and an arc groove. The handle 271 is connected to the driving rod 27 through a straight rod 273;

[0064] It should be noted that the user can conveniently control the handle 271 to realize the multifunctional operation of the device. When the user pushes the handle 271 along the vertical groove portion in the driving groove 272, the handle 271 will transmit power through the straight rod 273, driving the driving rod 27 to move linearly, thereby causing the shell 21 to slide synchronously along the direction of the tube body 10. In this process, the movement of the shell 21 will drive the plate body 11 to move and flip accordingly, and finally achieve the precise docking of the plate body 11 and the dividing plate 26, so that the device enters the cleaning or gas collection mode;

[0065] In addition, the drive groove 272 also includes an arc-shaped groove for switching the airflow path. When the user rotates the handle 271 to make it move along the arc-shaped groove, the straight rod 273 will change its angle accordingly, and cooperate with the drive rod 27 and the switching component 50 to adjust the angle of the connecting plate 2 35, thereby switching the gas flow path. In this state, the airflow can be directed to different functional areas: when the device is in cleaning mode, nitrogen will flow directly to the surface of the plate 11 to remove residual substances on the alcohol sensor; when the device enters the gas collection mode, the gas exhaled by the subject will be effectively introduced into the collection component 40 for sample storage;

[0066] This user-friendly design makes the entire operation process more intuitive and easy to control, and equipment switching and cleaning can be completed without complicated operations.

[0067] Further as Figure 5 As shown, it is worth to explain in detail that the housing 21 is fixedly connected with a round tube 221 at one side of the connecting shaft 22, and a vortex spring 222 is arranged in the round tube 221, and one end of the vortex spring 222 is fixedly connected to the inner wall of the round tube 221 and the other end is fixedly connected to the outer wall of the connecting shaft 22;

[0068] A limit block 223, the limit block 223 is fixedly connected to the inner wall of the housing 21, and the limit block 223 is used to limit the rotation angle of the plate body 11;

[0069] It should be noted that when the plate body 11 needs to be reset, the shell 21 moves along the tube body 10. After the gears 23 and the teeth 25 on the connecting shafts 22 at both ends of the plate body 11 are separated, the elastic potential energy of the spiral spring 222 in the circular tube 221 is converted into kinetic energy, so that the plate body 11 abuts against the limit block 223, thereby closing the front end of the tube body 10.

[0070] Further as Figure 4 and Figure 10 As shown, it is worth to explain in detail that the collecting component 40 includes:

[0071] Storage member 41, the storage member 41 is fixedly connected to the inner wall of the tube body 10, and the storage member 41 is used to place a collection tube 42 for collecting respiratory gas. Both the front and rear ends of the collection tube 42 are provided with openings. One end of the storage member 41 is provided with an air inlet for communicating with the ventilation tube 33, and the other end of the storage member 41 is provided with an air passage 43. The air passage 43 is divided into three sections, namely an air outlet section 431, a contraction section 432, and an air inlet section 433. The storage member 41 is also provided with a connection section 434, and the connection section 434 is used to connect the collection tube 42 to the contraction section 432;

[0072] It should be noted that when it is necessary to retain the respiratory gas of the subject to be measured, the user first needs to rotate the plate body 11 to the horizontal state through the flipping assembly 20 and fix it to the front end of the tube body 10, thereby opening the air flow channel. Subsequently, the angle of the second connecting plate 35 is adjusted through the switching assembly 50, so that the through hole on the second connecting plate 35 is accurately docked with the air inlet section 433 of the air passage 43 to ensure the smooth connection of the air flow path.

[0073] On this basis, the user can press the button to control the release of nitrogen. The nitrogen in the small nitrogen cylinder 31 enters the air passage 43 through the air inlet section 433, and then is ejected at high speed through the contraction section 432 and discharged from the air outlet section 431. Since the air flow will experience a sudden reduction in cross-sectional area when passing through the contraction section 432, according to the Venturi effect, a negative pressure effect will be formed in this area, causing the internal air pressure of the connection section 434 connected to it to decrease, and further generating a negative pressure inside the collection tube 42.

[0074] When the subject blows air towards the front end of the tube body 10, since a negative pressure has been formed inside the collection tube 42, the gas will be quickly sucked into the collection tube 42 and stored, thereby realizing the effective collection of the respiratory sample. This design not only ensures the full collection of gas, but also uses the negative pressure generated by the nitrogen flow to make the collection process more stable and efficient. In addition, the device can quickly retain the sample after detection, facilitating subsequent further analysis.

[0075] Furthermore, as Figure 4 shown, it is specifically noted that the switching assembly 50 includes:

[0076] A cylinder 51, the cylinder 51 is sleeved outside the driving rod 27, the cylinder 51 is fixedly connected to the first connecting plate 32 and the second connecting plate 35. The driving rod 27 includes a fixed rod 271 and a rotating rod 272, the fixed rod 271 is rotatably connected to the rotating rod 272, and both ends of the straight rod 273 are fixedly connected to the handle 271 and the rotating rod 272 respectively;

[0077] The connecting ear 52 is fixedly connected to the outer wall of the rotating rod 272. An activity groove 53 for the sliding of the connecting ear 52 is provided on the cylinder 51. A spring 54 is arranged in the cylinder 51 within the activity groove 53. One end of the spring 54 is fixedly connected to the cylinder 51 and the other end is fixedly connected to the connecting ear 52;

[0078] It should be noted that when the user operates the handle 271 to move along the vertical groove direction on the driving groove 272, the handle 271 transmits the driving force through the straight rod 273, causing the rotating rod 272 to move synchronously inside the pipe body 10. Along with the displacement of the rotating rod 272, the fixed rod 271 also moves accordingly, thereby driving the flipping assembly 20 to rotate the plate body 11. When the plate body 11 is flipped to the designated position, the device enters the corresponding working mode, such as the normal detection mode or the cleaning mode;

[0079] When it is necessary to collect the gas exhaled by the person to be measured, the user can further operate the handle 271 to rotate it along the arc groove in the driving groove 272. At this time, during the rotation of the rotating rod 272, it is linked with the connecting ear 52, and then drives the cylinder 51 sleeved outside the driving rod 27 to rotate synchronously. Since the cylinder 51 is fixedly connected to the connecting plate one 32 and the connecting plate two 35, the rotation of the cylinder 51 will directly drive the connecting plate one 32 and the connecting plate two 35 to make corresponding angular adjustments, so that their through holes are docked with different air flow paths, thereby completing the switching of the air flow paths. For example, when the through hole of the connecting plate two 35 is docked with the collection assembly 40, the gas exhaled by the person to be measured can smoothly enter the collection tube 42 for storage, and when the through hole is docked with the cleaning assembly 30, it can guide the nitrogen gas flow to the surface of the alcohol sensor to complete the cleaning operation;

[0080] In addition, through the ingenious application of the spring 54 in the switching assembly 50, the stability and automatic reset ability of the system are improved. When the handle 271 rotates along the arc groove to an appropriate position, the spring 54 in the cylinder 51 will generate elastic deformation due to the force and store a certain amount of elastic potential energy. Once the user completes the required function and operates the handle 271 again to rotate it back to the vertical groove part of the driving groove 272, the spring 54 will release the stored elastic potential energy and push the rotating rod 272 back to the initial position quickly.

[0081] Furthermore, as Figure 2 shown, it is specifically noted that the ventilation pipe 33 is obliquely arranged on the connecting plate one 32. By obliquely arranging the ventilation pipe 33 on the connecting plate one 32, the nitrogen gas can be blown obliquely onto the surface of the plate body 11, better cleaning the sensor thereon.

[0082] Furthermore, as Figure 10As shown, it is worth specifically noting that the collection tube 42 is filled with silica gel and activated carbon. The interior of the collection tube 42 is filled with silica gel and activated carbon to optimize the gas collection effect and ensure the quality of the stored gas. The silica gel material has excellent moisture absorption performance, which can effectively remove the moisture in the exhaled breath of the subject, prevent water vapor from condensing in the collection tube 42, thereby maintaining the stability of the gas sample and avoiding detection errors caused by humidity changes. At the same time, activated carbon has excellent adsorption capacity, which can capture impurities and odors in the gas, ensure that the collected gas sample is pure and pollution-free, and contribute to the accuracy of subsequent detection and analysis;

[0083] During actual use, when the subject blows air into the front end of the tube body 10 and the air flow enters the collection tube 42 through the contraction section 432, the silica gel will first absorb the moisture in the air flow, reducing the impact of humidity on the detection result, while the activated carbon further adsorbs possible impurities and volatile organic compounds to ensure the integrity and storability of the gas sample. In addition, this filling structure can also effectively reduce the disturbance during the air flow, making the gas evenly distributed in the collection tube 42 and further improving the accuracy of sampling.

[0084] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0085] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and all belong to the scope of protection of the present invention.

Claims

1. A reusable breath alcohol tester, characterized in that, Comprising: A tube body (10), with a collection port opened at the front end of the tube body (10); A plate body (11), the plate body (11) is arranged at the collection port at the front end of the tube body (10), and a sensor for alcohol detection is arranged on the plate body (11); A flipping assembly (20), the flipping assembly (20) is arranged on both sides of the plate body (11), and the flipping assembly (20) is used to flip the plate body (11); A cleaning assembly (30), the cleaning assembly (30) includes: A small nitrogen cylinder (31), the small nitrogen cylinder (31) is arranged at the tail of the tube body (10), and a button for opening or closing the small nitrogen cylinder (31) is arranged on the tube body (10); A first connecting plate (32), a ventilation pipe (33) is arranged on the first connecting plate (32), a connecting pipe (34) is arranged on the inner wall of the tube body (10), a second connecting plate (35) is rotatably connected to the inner wall of the tube body (10), a through hole is opened on the second connecting plate (35), and the through hole is communicated with the air outlet of the small nitrogen cylinder (31) through a hose (36); A collection assembly (40), the collection assembly (40) is arranged on the tube body (10), and the collection assembly (40) is used to collect the gas exhaled by the tester; A switching assembly (50), the switching assembly (50) is used to rotate the position of the second connecting plate (35) to switch the gas flow path, so as to clean the sensor on the plate body (11) or guide the gas into the collection assembly (40) for collection.

2. The alcohol tester that can be recycled according to claim 1, wherein: The flipping assembly (20) includes: A housing (21), the plate body (11) is rotatably connected to the housing (21), the housing (21) is slidably connected to the tube body (10), both ends of the plate body (11) are fixedly connected with connecting shafts (22), gears (23) are fixedly connected to both ends of the connecting shafts (22), sliding grooves (24) are arranged on both inner walls of the tube body (10), and teeth (25) are arranged in an array in the sliding grooves (24) of the tube body (10); A partition plate (26), the partition plate (26) is arranged in the housing (21), and the partition plate (26) is used to cooperate with the plate body (11) to divide the housing (21) into upper and lower cavities, one end of the partition plate (26) is fixedly connected with a driving rod (27), and the driving rod (27) can move back and forth along the extending direction of the tube body (10).

3. The alcohol tester for cyclic use according to claim 2, characterized in that: A handle (271) is arranged on the tube body (10), a driving groove (272) is opened on the tube body (10), the driving groove (272) is divided into a vertical groove and an arc groove, and the handle (271) is connected with the driving rod (27) through a straight rod (273).

4. The alcohol tester for cyclic use according to claim 2, wherein: A circular tube (221) is fixedly connected to one side of the housing (21) where the connecting shaft (22) is located, a spiral spring (222) is arranged in the circular tube (221), one end of the spiral spring (222) is fixedly connected to the inner wall of the circular tube (221) and the other end is fixedly connected to the outer wall of the connecting shaft (22); A limiting block (223), the limiting block (223) is fixedly connected to the inner wall of the housing (21), and the limiting block (223) is used to limit the rotation angle of the plate body (11).

5. The alcohol tester capable of recycling according to claim 3, characterized in that: The collection assembly (40) includes: A storage member (41), the storage member (41) is fixedly connected to the inner wall of the pipe body (10), a collection tube (42) for collecting respiratory gas is placed in the storage member (41), openings are provided at both the front and rear ends of the collection tube (42), an air inlet for communicating with the ventilation pipe (33) is provided at one end of the storage member (41), an air passage (43) is provided at the other end of the storage member (41), the air passage (43) is divided into three sections, namely an air outlet section (431), a contraction section (432) and an air inlet section (433) in sequence, and a connection section (434) is also provided on the storage member (41), and the connection section (434) is used to communicate the collection tube (42) with the contraction section (432).

6. The alcohol tester for recycling according to claim 5, wherein: The switching assembly (50) includes: A cylinder (51), the cylinder (51) is sleeved outside the driving rod (27), the cylinder (51) is fixedly connected to the first connecting plate (32) and the second connecting plate (35), the driving rod (27) includes a fixed rod (271) and a rotating rod (272), the fixed rod (271) is rotatably connected to the rotating rod (272), and both ends of the straight rod (273) are fixedly connected to the handle (271) and the rotating rod (272) respectively; A connecting ear (52), the connecting ear (52) is fixedly connected to the outer wall of the rotating rod (272), a movable groove (53) for the sliding of the connecting ear (52) is provided on the cylinder (51), a spring (54) is arranged in the cylinder (51) at the position of the movable groove (53), one end of the spring (54) is fixedly connected to the cylinder (51) and the other end is fixedly connected to the connecting ear (52).

7. The alcohol tester capable of recycling according to claim 6, wherein: The ventilation pipe (33) is obliquely arranged on the first connecting plate (32).

8. A reusable breath alcohol tester according to claim 7, characterized in that: The collection tube (42) is filled with silica gel and activated carbon.

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