Alcohol detector calibrating device

Abstract

The invention relates to the technical field of alcohol content meters, and discloses an alcohol content meter calibrating device which comprises an alcohol content meter body, the alcohol content meter body comprises a plurality of blowing hoses arranged in the alcohol content meter body, and a mounting groove is formed in the alcohol content meter body. The driving shaft, the worm and the like drive the chain wheel, the chain and the air blowing hose to move, and meanwhile, under the action of the missing gear, the rack, the reset spring and the like, the situation that the detection result is affected due to air leakage between the air blowing hose and the air guide pipe when the air blowing hose is used is avoided; an operator can easily replace the blowing hose when using the alcohol detector body, sterilization and disinfection of the blowing hose are completed, operation is simple, the user can conduct multiple detections in a short time, the risk of cross infection does not need to be worried about, and the effect of improving the detection efficiency and the use experience is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of alcohol detectors, and in particular to a calibration device for an alcohol detector. Background Art

[0002] Alcohol detectors are mainly used to detect the alcohol concentration in an individual's breath and are widely used in road traffic management, public safety, medical testing and other fields. By measuring the alcohol content in the breath, the alcohol detector can accurately determine whether a person is driving under the influence or has been drinking. In traffic law enforcement, the alcohol detector provides the police with a simple, fast, and non-invasive means of detecting alcohol content, and is an important tool for ensuring traffic safety.

[0003] When using an alcohol tester in practice, there is a problem that cannot be ignored, that is, the risk of cross infection. Alcohol testers need to be used by multiple people, especially in public places and law enforcement inspections. Frequent use increases the risk of bacterial or viral transmission. In order to prevent this cross infection, it is usually necessary to replace the disposable mouthpiece for each test subject. The disposable mouthpiece must be replaced after each use to ensure the safety and hygiene of each test.

[0004] However, this practice of frequently replacing disposable mouthpieces also leads to reduced detection efficiency. During each detection process, it takes extra time to replace the mouthpiece. Especially in high-flow inspection occasions with a large number of people, frequent mouthpiece replacement will slow down the overall detection speed and extend the waiting time for each individual. This inefficient operation not only increases the manual burden, but also affects the overall workflow, especially in emergency situations or large-scale law enforcement operations, which may cause inspection delays and affect work efficiency. Summary of the invention

[0005] The present application proposes an alcohol detector calibration device, which has the advantages of simple operation, allowing users to perform multiple tests in a short period of time without worrying about the risk of cross infection, thereby improving the detection efficiency. It is used to solve the problem of increased manual burden and reduced detection efficiency due to the need to frequently replace the mouthpiece when using an alcohol detector.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: an alcohol detector calibration device, comprising an alcohol detector body, the alcohol detector body comprising a plurality of air blowing hoses arranged inside the alcohol detector body, a mounting groove is provided inside the alcohol detector body, a mounting box with a top opening is fixedly mounted on the inner side wall of the mounting groove, and a replacement component for replacing the air blowing hose is fixedly mounted on the inner side wall of the mounting box;

[0007] The replacement assembly includes a guide plate fixedly mounted on the inner side wall of the installation box, two columns are symmetrically rotatably mounted on the outer side of the guide plate, a sprocket is fixedly mounted on one end of the column away from the guide plate, a chain is commonly sleeved on the outer sides of the two sprockets, a plurality of connecting columns are rotatably mounted on the chain, a mounting plate is fixedly mounted on one end of the connecting column away from the guide plate, one end of the mounting plate away from the connecting column is fixedly connected to the bottom end of the blowing hose, and a telescopic slot connected to the mounting slot is provided on the top of the alcohol detector body;

[0008] A driving assembly for driving the sprocket to rotate is fixedly mounted on the side wall of the installation box, and a sealing assembly for ensuring a sealing effect is also provided between the replacement assembly and the driving assembly.

[0009] Furthermore, a connecting plate is fixedly installed on one end of the connecting column away from the blowing hose, and two guide columns are symmetrically fixedly installed on one end of the connecting plate away from the connecting column. Two first slides are symmetrically opened at the left and right ends of the guide plate, and two pairs of second slides that are compatible with the guide columns are symmetrically opened at the upper and lower ends of the guide plate, and both ends of each second slide are connected to the corresponding first slide.

[0010] Furthermore, the driving assembly includes a rotating shaft rotatably mounted on the side wall of the mounting box, an end of the rotating shaft away from the side wall of the mounting box is fixedly connected to one of the sprockets, a worm wheel is fixedly mounted on the outer side of the end of the rotating shaft away from the sprocket, a driving shaft is rotatably mounted on the alcohol detector body and the side wall of the mounting box, a worm gear meshing with the worm gear is fixedly mounted on the outer side of the end of the driving shaft close to the rotating shaft, and a rotating handle is fixedly mounted on the outer side of the end of the driving shaft away from the worm gear.

[0011] Furthermore, the sealing assembly includes an L-shaped air guide tube fixedly installed on the side wall of the mounting box, an arc tube fixedly installed on the top of the air guide tube, and the arc tube is placed directly below the telescopic slot, the end of the air guide tube close to the arc tube is made of elastic material, a fixing ring is fixedly installed on the outer side of one end of the air guide tube close to the chain, a rack is fixedly installed on the outer side of one end of the fixing ring close to the rotating shaft, a fixing plate is fixedly installed on the inner side wall of the mounting box, the fixing plate is fixedly connected to the air guide tube at one end away from the mounting box, a return spring is fixedly installed between the bottom wall of the fixing ring and the top wall of the fixing plate, and the return spring is sleeved on the outer side of the air guide tube.

[0012] Furthermore, a main gear is fixedly installed on the outer side of one end of the rotating shaft close to the column, a support shaft is fixedly installed on the side wall of the installation box, and the support shaft is placed directly below the rotating shaft, a slave gear meshing with the main gear is fixedly installed on the outer side of the support shaft, and a missing gear meshing with or separated from the rack is fixedly installed on the outer side of the support shaft.

[0013] Furthermore, a liquid adding tube is fixedly connected to the outside of the installation box, and the top of the liquid adding tube passes through the top wall of the alcohol detector body, and a liquid outlet tube is fixedly connected to the outside of the bottom end of the installation box, and the end of the liquid outlet tube away from the installation box passes through the side wall of the alcohol detector body, and the ends of the liquid adding tube and the liquid outlet tube away from the installation box are rotatably installed with sealing covers.

[0014] The beneficial effects of the present invention are as follows:

[0015] The present application provides an alcohol detector calibration device, which drives a sprocket and a chain to rotate through a driving shaft and a worm gear, and the chain drives the air blowing hose to move through a connecting column and a mounting plate. The air blowing hose can move inside the mounting box under the action of a guide column, a first slideway and a second slideway. At the same time, under the action of a gear, a rack and a reset spring, the air blowing hose will not be used to affect the test result due to air leakage between the air blowing hose and the air guide tube. The operator can easily replace the air blowing hose when using the alcohol detector body and complete the sterilization and disinfection of the air blowing hose. The operation is simple, so that the user can perform multiple tests in a short time without worrying about the risk of cross infection, thereby achieving the effect of improving the detection efficiency and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the main cross-sectional structure of the installation box of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the replacement component of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the connecting column, the blowing hose and the guide column of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the driving assembly and the sealing assembly of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the air guide tube, rack and return spring of the present invention.

[0024] In the figure: 1. Alcohol detector body; 2. Mounting slot; 3. Mounting box; 4. Replacement assembly; 41. Guide plate; 42. Column; 421. Sprocket; 43. Chain; 44. Connecting column; 45. Mounting plate; 46. Air blowing hose; 461. Telescopic slot; 47. Connecting plate; 48. Guide column; 49. First slideway; 491. Second slideway; 5. Driving assembly; 51. Rotating shaft; 52. Worm gear; 53. Driving shaft; 54. Worm; 55. Rotating handle; 6. Sealing assembly; 61. Air guide tube; 611. Arc tube; 62. Main gear; 63. Support shaft; 64. Slave gear; 65. Missing gear; 66. Fixed ring; 67. Rack; 68. Fixed plate; 69. Reset spring; 7. Liquid adding tube; 8. Liquid outlet tube; 9. Sealing cover. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1

[0027] See also Figures 1 to 7 A calibration device for an alcohol detector comprises an alcohol detector body 1, the alcohol detector body 1 comprises a plurality of air blowing hoses 46 arranged inside the alcohol detector body 1, a mounting groove 2 is provided inside the alcohol detector body 1, a mounting box 3 with a top opening is fixedly mounted on the inner side wall of the mounting groove 2, a liquid adding pipe 7 is fixedly connected to the outer side of the mounting box 3, and the top of the liquid adding pipe 7 passes through the top wall of the alcohol detector body 1, a liquid outlet pipe 8 is fixedly connected to the outer side of the bottom end of the mounting box 3, and the end of the liquid outlet pipe 8 away from the mounting box 3 passes through the side wall of the alcohol detector body 1, and the ends of the liquid adding pipe 7 and the liquid outlet pipe 8 away from the mounting box 3 are both rotatably mounted with a sealing Cover 9. When using the alcohol detector body 1, disinfectant is added into the installation box 3 through the liquid adding tube 7, and the disinfectant is used to disinfect the blowing hose 46 after use. After the test, the disinfectant in the installation box 3 can be poured out through the liquid outlet tube 8. The disinfectant adopts 3% hydrogen peroxide solution, which can destroy the cell wall of bacteria by releasing oxygen, thereby effectively killing bacteria, viruses and other microorganisms on the surface of the blowing hose 46, avoiding cross infection between different tested persons, and because 3% hydrogen peroxide solution can be used as oral disinfection in medicine, it can avoid the solution remaining on the surface of the blowing hose 46 after disinfection to cause harm to the tested person.

[0028] A replacement assembly 4 for replacing an air blowing hose 46 is fixedly mounted on the inner side wall of the mounting box 3. The replacement assembly 4 includes a guide plate 41 fixedly mounted on the inner side wall of the mounting box 3. Two columns 42 are symmetrically rotatably mounted on the outer side of the guide plate 41. A sprocket 421 is fixedly mounted on one end of the column 42 away from the guide plate 41. A chain 43 is commonly sheathed on the outer sides of the two sprockets 421. By driving one of the sprockets 421 to rotate, the other sprocket 421 can be driven to rotate through the chain 43. A plurality of connecting columns 44 are rotatably mounted on the chain 43. A mounting plate 45 is fixedly mounted on one end of the connecting column 44 away from the guide plate 41. One end of the mounting plate 45 away from the connecting column 44 is connected to the air blowing hose 46. The bottom end is fixedly connected, and a telescopic groove 461 connected to the mounting groove 2 is opened on the top of the alcohol detector body 1. When the chain 43 rotates, it drives the connecting column 44, the blowing hose 46 and the guide column 48 to rotate, and then the multiple blowing hoses 46 are rotated to the telescopic groove 461 in sequence, so that the top end of the blowing hose 46 is placed outside the alcohol detector body 1, and then the person being tested is allowed to blow through the blowing hose 46 for testing. After the blowing test, the chain 43 continues to rotate so that the used blowing hose 46 is moved to the inside of the mounting box 3, and is disinfected by a disinfectant before waiting for the next use, thereby realizing the recycling of multiple blowing hoses 46 while ensuring the sterilization effect.

[0029] A connecting plate 47 is fixedly installed at one end of the connecting column 44 away from the air blowing hose 46, and two guide columns 48 are symmetrically fixedly installed at one end of the connecting plate 47 away from the connecting column 44. Two first slideways 49 are symmetrically opened at the left and right ends of the guide plate 41, and two pairs of second slideways 491 adapted to the guide columns 48 are symmetrically opened at the upper and lower ends of the guide plate 41, and both ends of each second slideway 491 are connected to the corresponding first slideway 49. When the chain 43 drives the connecting column 44, the air blowing hose 46 and the guide column 48 to rotate, the guide column 48 also slides in the corresponding first slideway 49, and because the connecting column 44 is rotatably connected to the chain 43, the connecting column 44 will not affect In order to affect the normal operation of the chain 43, when the chain 43 drives the guide column 48 to slide from the first slide 49 to the junction of the first slide 49 and the second slide 491, the two guide columns 48 also slide from the first slide 49 into the corresponding second slide 491, so that the air blowing hose 46 will not change position with the rotation of the chain 43, so that the air blowing hose 46 always maintains a vertical state, thereby preventing the air blowing hose 46 from contacting the side wall of the installation box 3 due to position change inside the installation box 3, preventing the air blowing hose 46 from being worn, and also avoiding the air blowing hose 46 from being stuck due to friction when contacting the inner wall of the installation box 3, thereby ensuring the normal operation of the air blowing hose 46.

[0030] Embodiment 2

[0031] See also Figure 3 and Figure 6 On the basis of the first embodiment, a driving assembly 5 for driving the sprocket 421 to rotate is fixedly installed on the side wall of the installation box 3, and the driving assembly 5 includes a rotating shaft 51 rotatably installed on the side wall of the installation box 3, and one end of the rotating shaft 51 away from the side wall of the installation box 3 is fixedly connected to one of the sprockets 421, and a worm gear 52 is fixedly installed on the outer side of the end of the rotating shaft 51 away from the sprocket 421. A driving shaft 53 is rotatably installed on the side wall of the alcohol detector body 1 and the installation box 3, and the driving shaft 53 is close to the rotating shaft 5 A worm 54 meshing with the worm wheel 52 is fixedly installed on the outer side of one end of the drive shaft 53, and a rotating handle 55 is fixedly installed on the outer side of the end away from the worm 54. When the air blowing hose 46 needs to be replaced, the rotating handle 55 is rotated, and the rotating handle 55 drives the worm 54 to rotate through the drive shaft 53. The worm 54 then drives the rotating shaft 51 to rotate through the meshing with the worm wheel 52. When the rotating shaft 51 rotates, it drives the sprocket 421 to rotate, and then drives the chain 43 to rotate. The rotation of the chain 43 drives the air blowing hose 46 to be replaced.

[0032] Embodiment 3

[0033] See also Figure 3 , Figure 6 and Figure 7On the basis of the first embodiment, a sealing component 6 for ensuring the sealing effect is also provided between the replacement component 4 and the driving component 5. The sealing component 6 includes an L-shaped air guide tube 61 fixedly installed on the side wall of the installation box 3. The top of the air guide tube 61 is fixedly installed with an arc tube 611, and the arc tube 611 is placed directly below the telescopic groove 461. When one of the air blowing hoses 46 is placed at the telescopic groove 461, the bottom end of the air blowing hose 46 is placed inside the top of the air guide tube 61, thereby ensuring the sealing effect of the connection between the air blowing hose 46 and the air guide tube 61 when the person being tested blows air, preventing air leakage from affecting the test result. The end is made of elastic material, a main gear 62 is fixedly installed on the outer side of one end of the rotating shaft 51 close to the column 42, a support shaft 63 is fixedly installed on the side wall of the installation box 3, and the support shaft 63 is placed directly below the rotating shaft 51, and a slave gear 64 meshing with the main gear 62 is fixedly installed on the outer side of the support shaft 63. When the rotating shaft 51 rotates under the action of the driving shaft 53 and the worm 54, the rotating shaft 51 drives the main gear 62 to rotate, and the main gear 62 then drives the slave gear 64 and the support shaft 63 to rotate through meshing transmission, and a missing gear 65 is fixedly installed on the outer side of the support shaft 63, and a fixing ring 66 is fixedly installed on the outer side of the air guide tube 61 close to the chain 43. The fixing ring 66 is close to the rotating shaft A rack 67 is fixedly installed on the outer side of one end of the shaft 51, which is engaged or separated with the missing gear 65. A fixing plate 68 is fixedly installed on the inner side wall of the installation box 3. The end of the fixing plate 68 away from the installation box 3 is fixedly connected to the air guide tube 61. A return spring 69 is fixedly installed between the bottom wall of the fixing ring 66 and the top wall of the fixing plate 68, and the return spring 69 is sleeved on the outer side of the air guide tube 61. When the support shaft 63 rotates, the gear rack 67 is driven to move downward through the meshing transmission between the missing gear 65 and the rack 67. The rack 67 then drives the arc tube 611 to move downward through the fixing ring 66. The return spring 69 is compressed, so that the corresponding blowing hose 46 and the air guide tube 61 Separation, and as the chain 43 continues to rotate, the adjacent blowing hose 46 moves to the telescopic groove 461, at which time the rack 67 is separated from the missing gear 65, and under the action of the elastic force of the reset spring 69, the fixed ring 66 and the rack 67 move upward and reset, so that the arc tube 611 surrounds the bottom end of the blowing hose 46, and the arc-shaped arc tube 61 can better surround the bottom end of the blowing hose 46, avoiding air leakage at the connection between the blowing hose 46 and the air guide tube 61, ensuring the sealing effect of the connection between the blowing hose 46 and the air guide tube 61, and improving the accuracy of the detection, thereby ensuring that the results of each alcohol test are reliable and accurate.

[0034] Working principle:

[0035] When using the alcohol detector body 1, disinfectant is added to the lower half of the installation box 3 through the liquid adding tube 7, and the top of the blowing hose 46 placed at the telescopic groove 461 is placed outside the alcohol detector body 1, so that the person being tested can perform a blowing test through the blowing hose 46. After the blowing test, the driving shaft 53 and the worm 54 are rotated by rotating the handle 55, and the worm 54 drives the rotating shaft 51 to rotate through the engagement with the worm gear 52. When the rotating shaft 51 rotates, it drives the sprocket 421 and the chain 43 to rotate. The rotation of the chain 43 moves the blowing hose 46 to the inside of the installation box 3, and the adjacent unused blowing hose 46 is moved to the telescopic groove 461 for the next person being tested to use, thereby achieving the purpose of replacing the blowing hose 46, and the used blowing hose 46 is gradually replaced with the movement of the chain 43. It is moved to the lower part of the installation box 3 and disinfected by the disinfectant. After disinfection, as the chain 43 rotates, the air blowing hose 46 is first separated from the disinfectant. In the process of gradually moving to the telescopic groove 461, the disinfectant remaining on its surface will drip downward due to gravity to reduce the residue. After the test is completed, the disinfectant in the installation box 3 can be poured out through the liquid outlet pipe 8, and the sprocket 421 and the chain 43 are driven to rotate by the drive shaft 53 and the worm 54, so that the operator can easily replace the air blowing hose 46 when using the alcohol detector body 1, and complete the sterilization and disinfection of the air blowing hose 46. Not only is the operation simple, it allows the user to perform multiple tests in a short time without worrying about the risk of cross infection, thereby improving the test efficiency and effectively reducing the waste of the air blowing hose 46, thereby saving costs and reducing the environmental burden;

[0036] When one of the air blowing hoses 46 is placed in the telescopic groove 461, the bottom end of the air blowing hose 46 is placed inside the top end of the air guide tube 61, thereby ensuring the sealing effect of the connection between the air blowing hose 46 and the air guide tube 61 when the person being tested blows air, preventing air leakage from affecting the test result. When the support shaft 63 rotates under the action of the drive shaft 53, the worm 54 and the main gear 62, the support shaft 63 drives the rack 67 to move downward through the meshing transmission between the missing gear 65 and the rack 67, and the rack 67 drives the arc tube 611 to move downward through the fixing ring 66, and the reset spring 69 is compressed, so that the corresponding air blowing hose 46 is separated from the air guide tube 61, and as the chain 43 continues to rotate, the adjacent air blowing hose 46 moves to the telescopic groove 461. At this time, the rack 67 Separated from the missing gear 65, under the action of the elastic force of the reset spring 69, the fixing ring 66 and the rack 67 move upward and reset, so that the arc tube 611 surrounds the bottom end of the blowing hose 46, avoiding air leakage at the connection between the blowing hose 46 and the air duct 61. Under the action of the missing gear 65, the rack 67 and the reset spring 69, the blowing hose 46 will not be used when the detection result is affected by the leakage between the blowing hose 46 and the air duct 61, which not only ensures the sealing effect of the connection between the blowing hose 46 and the air duct 61, but also improves the accuracy of the detection, thereby ensuring that the result of each alcohol test is reliable and accurate, and will not affect the normal operation of the blowing hose 46, further improving the detection efficiency and user experience.

[0037] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An alcohol detector calibration device, characterized in that: The alcohol detector comprises an alcohol detector body (1), the alcohol detector body (1) comprising a plurality of air blowing hoses (46) arranged inside the alcohol detector body (1), a mounting groove (2) is provided inside the alcohol detector body (1), a mounting box (3) with a top opening is fixedly mounted on the inner side wall of the mounting groove (2), and a replacement component (4) for replacing the air blowing hoses (46) is fixedly mounted on the inner side wall of the mounting box (3); The replacement assembly (4) comprises a guide plate (41) fixedly mounted on the inner side wall of the installation box (3), two columns (42) are symmetrically rotatably mounted on the outer side of the guide plate (41), a sprocket (421) is fixedly mounted on one end of the column (42) away from the guide plate (41), a chain (43) is commonly sleeved on the outer sides of the two sprockets (421), a plurality of connecting columns (44) are rotatably mounted on the chain (43), a mounting plate (45) is fixedly mounted on one end of the connecting column (44) away from the guide plate (41), one end of the mounting plate (45) away from the connecting column (44) is fixedly connected to the bottom end of the blowing hose (46), and a telescopic groove (461) connected to the mounting groove (2) is opened on the top of the alcohol detector body (1); A driving assembly (5) for driving the sprocket (421) to rotate is fixedly mounted on the side wall of the installation box (3), and a sealing assembly (6) for ensuring a sealing effect is also provided between the replacement assembly (4) and the driving assembly (5).

2. An alcohol detector calibration device according to claim 1, characterized in that: A connecting plate (47) is fixedly installed at one end of the connecting column (44) away from the blowing hose (46), and two guide columns (48) are symmetrically fixedly installed at one end of the connecting plate (47) away from the connecting column (44). Two first slideways (49) are symmetrically provided at the left and right ends of the guide plate (41), and two pairs of second slideways (491) adapted to the guide columns (48) are symmetrically provided at the upper and lower ends of the guide plate (41), and both ends of each second slideway (491) are connected to the corresponding first slideway (49).

3. The alcohol detector calibration device according to claim 1, characterized in that: The driving assembly (5) comprises a rotating shaft (51) rotatably mounted on the side wall of the installation box (3); one end of the rotating shaft (51) away from the side wall of the installation box (3) is fixedly connected to one of the sprockets (421); a worm wheel (52) is fixedly mounted on the outer side of the end of the rotating shaft (51) away from the sprocket (421); a driving shaft (53) is rotatably mounted on the alcohol detector body (1) and the side wall of the installation box (3); a worm (54) meshing with the worm wheel (52) is fixedly mounted on the outer side of one end of the driving shaft (53) close to the rotating shaft (51); and a rotating handle (55) is fixedly mounted on the outer side of one end of the driving shaft (53) away from the worm wheel (54).

4. The alcohol detector calibration device according to claim 1, characterized in that: The sealing assembly (6) comprises an L-shaped air guide tube (61) fixedly mounted on the side wall of the installation box (3); an arc tube (611) is fixedly mounted on the top of the air guide tube (61), and the arc tube (611) is placed directly below the telescopic slot (461); one end of the air guide tube (61) close to the arc tube (611) is made of elastic material; a fixing ring (66) is fixedly mounted on the outer side of one end of the air guide tube (61) close to the chain (43); A rack (67) is fixedly mounted on the outer side of one end of the ring (66) close to the rotating shaft (51); a fixing plate (68) is fixedly mounted on the inner side wall of the installation box (3); an end of the fixing plate (68) away from the installation box (3) is fixedly connected to the air guide tube (61); a return spring (69) is fixedly mounted between the bottom wall of the fixing ring (66) and the top wall of the fixing plate (68), and the return spring (69) is sleeved on the outer side of the air guide tube (61).

5. The alcohol detector calibration device according to claim 4, characterized in that: A main gear (62) is fixedly mounted on the outer side of one end of the rotating shaft (51) close to the column (42); a support shaft (63) is fixedly mounted on the side wall of the installation box (3), and the support shaft (63) is placed directly below the rotating shaft (51); a slave gear (64) meshing with the main gear (62) is fixedly mounted on the outer side of the support shaft (63); and a missing gear (65) meshing with or disengaging from the rack (67) is fixedly mounted on the outer side of the support shaft (63).

6. The alcohol detector calibration device according to claim 1, characterized in that: The outside of the installation box (3) is fixedly connected to a liquid adding pipe (7), and the top end of the liquid adding pipe (7) passes through the top wall of the alcohol detector body (1); the outside of the bottom end of the installation box (3) is fixedly connected to a liquid outlet pipe (8), and the end of the liquid outlet pipe (8) away from the installation box (3) passes through the side wall of the alcohol detector body (1); the ends of the liquid adding pipe (7) and the liquid outlet pipe (8) away from the installation box (3) are both rotatably mounted with sealing covers (9).

Images