Alcohol detector with replaceable blowing port and detection method

By designing an alcohol detector with interchangeable breathalyzer nozzles and employing a fixing mechanism and a conveying mechanism, the automatic replacement and collection of breathalyzer nozzles are achieved. This solves the problems of increased workload and low law enforcement efficiency caused by manual operation in existing technologies, and improves the work efficiency of traffic police.

CN121856534APending Publication Date: 2026-04-14SHENZHEN TENGANDA TRANSPORTATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN TENGANDA TRANSPORTATION TECH CO LTD
Filing Date
2024-01-25
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The current breathalyzer requires manual operation when changing the breathalyzer nozzle, which increases the workload of traffic police and reduces law enforcement efficiency, thus affecting the prevention of traffic accidents.

Method used

An alcohol detector with replaceable breath nozzles was designed. It adopts a fixing mechanism and a conveying mechanism to realize the automatic replacement and collection of breath nozzles. The breath nozzles are automatically conveyed and collected by the cooperation of clamping plates and springs, combined with a screw and slider structure driven by an electric motor.

Benefits of technology

It enables rapid replacement and collection of air nozzles, reduces manual operation time, improves work efficiency, and ensures the efficient enforcement of traffic police duties.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an alcohol detector with a replaceable air blowing port, and belongs to the technical field of alcohol detectors, the alcohol detector comprises an alcohol detector body, the upper end of the alcohol detector body is provided with an orifice, the air blowing port is arranged in the orifice, and the front side and the rear side of the air blowing port are both provided with fixing mechanisms; the fixing mechanism comprises a clamping plate connected to the surface side of the air blowing opening in an abutting mode, a movable column is arranged on the outer side of the clamping plate, the movable column is sleeved with a spring, one end of the spring is connected to the clamping plate, and the other end of the spring is connected with a fixing arc plate. When the pull handle is released, the clamping plate clamps the outer cylinder of the blowing port under the elastic action of the spring, fixation is firm and reliable, and mounting and dismounting are convenient and fast.
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Description

Technical Field

[0001] This invention belongs to the technical field of alcohol testing devices, specifically relating to an alcohol testing device with a replaceable breath nozzle. Background Technology

[0002] As an effective detection device for determining the level of alcohol intake, alcohol detectors can help traffic police effectively detect whether drivers have consumed excessive alcohol. During the detection process, alcohol detectors need to collect oral gas through a breathalyzer. In order to avoid cross-infection and prevent the spread of viruses, the breathalyzer needs to be replaced in a timely manner. At present, alcohol detectors still need to be picked up and replaced manually, which increases the workload of traffic police and wastes a lot of time, affecting the efficiency of traffic police enforcement and having a significant impact on the prevention of traffic accidents. Summary of the Invention

[0003] The present invention provides an alcohol detector with a replaceable breath nozzle to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an alcohol detector with a replaceable air nozzle, comprising an alcohol detector body, an opening at the upper end of the alcohol detector body, an air nozzle inside the opening, and fixing mechanisms on both the front and rear sides of the air nozzle.

[0005] The fixing mechanism includes a clamping plate abutting against the surface of the air inlet. A movable column is provided on the outside of the clamping plate. A spring is sleeved on the outside of the movable column. One end of the spring is connected to the clamping plate, and the other end is connected to a fixed arc plate. A limit frame is provided at the lower end of the fixed arc plate. The two sets of limit frames form a conveying slot. The limit frame is fixed to the upper end of the alcohol detector body. A handle is provided at the end of the movable column that extends outward through the fixed arc plate.

[0006] Furthermore, a placement cylinder is provided on one side of the alcohol detector body, and air inlets are stacked on the placement cylinder in sequence. A sealing paper is provided on the upper surface of the air inlets. A stop block is provided at the upper end of the placement cylinder, and a contact sensor is provided at the lower end of the stop block. A conveying mechanism is provided at the bottom of the placement cylinder. A limit ring plate is provided outside the air inlets. A sliding rod is movably connected to the outside of the placement cylinder. A U-shaped plate is provided at one end of the sliding rod near the alcohol detector body, and a pull block is provided at the other end.

[0007] Furthermore, the conveying mechanism includes a housing fixed to one side of the placement cylinder, a screw rotatably connected inside the housing, a movable block movably connected outside the screw, a support plate provided on the movable block, the support plate being located below the lowest air inlet, a slider provided on one side of the movable block, a fixed rod slidably connected inside the slider, and the fixed rod being fixed inside the housing.

[0008] Furthermore, a motor output end is provided at one end of the screw extending out of the housing, and the motor is fixed to the bottom of the housing.

[0009] Furthermore, a frame is provided on the outside of the motor, and the frame is fixed to the lower end of the housing.

[0010] Furthermore, a collection tube is provided on the side of the alcohol detector body corresponding to the placement tube.

[0011] Furthermore, the bottom of the collection tube is provided with an opening.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The fixing mechanism of this invention allows the outer cylinder of the air outlet to be inserted into the opening by pulling the handle, and the clamping plate to clamp the outer cylinder of the air outlet under the elastic force of the spring when the handle is released, so that it is firmly and reliably fixed and the installation and disassembly are convenient and quick.

[0014] 2. This invention places the air inlet in a placement cylinder and then automatically transports it through a conveying mechanism, which saves workers time and effort, improves work efficiency, and allows the discarded air inlet to be moved directly into the collection cylinder after testing for easy collection and processing, making it convenient and practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an alcohol detector with a replaceable breath nozzle according to the present invention.

[0016] Figure 2 This is a schematic diagram of the conveying mechanism of the present invention.

[0017] Figure 3 This is a schematic diagram of the fixing mechanism of the present invention.

[0018] Figure 4 This is a schematic diagram of the limiting frame of the present invention.

[0019] Figure 5 This is a schematic diagram of the U-shaped plate of the present invention.

[0020] In the diagram: 1. Alcohol detector body; 2. Inlet; 3. Collection tube; 4. Fixing mechanism; 41. Fixing arc plate; 42. Movable column; 43. Clamping plate; 44. Spring; 45. Pull handle; 5. Air inlet; 6. Limiting ring plate; 7. Stop block; 8. U-shaped plate; 9. Sliding rod; 10. Pull-out block; 11. Conveying mechanism; 111. Screw; 112. Fixing rod; 113. Support plate; 114. Movable block; 115. Slider; 116. Housing; 117. Frame; 118. Motor; 12. Contact sensor; 13. Limiting frame; 14. Placement tube. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-5 The present invention provides the following technical solutions:

[0023] Example 1

[0024] An alcohol detector with a replaceable mouthpiece includes an alcohol detector body 1. The upper end of the alcohol detector body 1 is provided with an opening, and a mouthpiece 5 is provided inside the opening. Fixing mechanisms 4 are provided on both the front and rear sides of the mouthpiece 5.

[0025] The fixing mechanism 4 includes a clamping plate 43 that abuts against the surface of the air outlet 5. A movable column 42 is provided on the outside of the clamping plate 43. A spring 44 is sleeved on the outside of the movable column 42. One end of the spring 44 is connected to the clamping plate 43. The clamping plate 43 is an arc plate to facilitate clamping the outer cylinder of the air outlet 5. The other end is connected to a fixed arc plate 41. A limit frame 13 is provided at the lower end of the fixed arc plate 41. The two sets of limit frames 13 form a conveying groove. The limit frame 13 is fixed to the upper end of the alcohol detector body 1. A handle 45 is provided at the end of the movable column 42 that extends outward through the fixed arc plate 41.

[0026] Specifically, pull the handle 45, insert the outer cylinder of the air inlet 5 into the hole, release the handle 45, and under the elastic force of the spring 44, the clamping plate 43 clamps the outer cylinder of the air inlet 5, which is firmly and reliably fixed, and the installation and disassembly are convenient and quick.

[0027] Example 2

[0028] As an alternative, an alcohol detector with replaceable breathalyzer has a placement cylinder 14 on one side of the main body 1, with a placement opening on the outside of the placement cylinder 14. Breathing ports 5 are stacked on top of the placement cylinder 14, and a sealing paper is provided on the upper surface of the breathing port 5. A stop block 7 is provided at the upper end of the placement cylinder 14, and a contact sensor 12 is provided at the lower end of the stop block 7. A conveying mechanism 11 is provided at the bottom of the placement cylinder 14. A limit ring plate 6 is provided on the outside of the breathing port 5. A sliding rod 9 is movably connected to the outside of the placement cylinder 14. A U-shaped plate 8 is provided at one end of the sliding rod 9 near the main body 1 of the alcohol detector, and a pull block 10 is provided at the other end.

[0029] In this embodiment, for automatic and stable conveying, the conveying mechanism 11 includes a housing 116 fixed to one side of the placement cylinder 14. A screw 111 is rotatably connected inside the housing 116, and a movable block 114 is movably connected to the outside of the screw 111. A support plate 113 is provided on the movable block 114, and the support plate 113 is located at the lower end of the air inlet 5 at the bottom layer. A slider 115 is provided on one side of the movable block 114, and a fixing rod 112 is slidably connected inside the slider 115. The fixing rod 112 is fixed inside the housing 116.

[0030] In this embodiment, the end of the screw 111 that extends out of the housing 116 is provided with the output end of the motor 118. The motor 118 is fixed at the bottom of the housing 116. In order to ensure the stable operation of the motor 118, a frame 117 is provided outside the motor 118. The frame 117 is fixed at the lower end of the housing 116. The motor 118 is a forward and reverse reversible motor.

[0031] In this embodiment, in order to facilitate the collection of the discarded breath nozzles 5, a collection cylinder 3 is provided on the side of the alcohol detector body 1 corresponding to the placement cylinder 14. A passage 2 is provided at the bottom of the collection cylinder 3. When the collected discarded breath nozzles 5 cannot be poured down, they can be unblocked from below the passage 2.

[0032] Specifically, the air inlet 5 is first placed in the placement cylinder 14. The motor 118 drives the screw 111 to rotate, thereby moving the movable block 114. The movable block 114 moves upward under the limitation of the fixed rod 112 and the slider 115, thus moving the air inlet 5 upward until the uppermost air inlet 5 touches the contact sensor 12, causing the motor 118 to stop moving. This pushes the pull block 10, which moves the sliding rod 9, thereby moving the U-shaped plate 8. The U-shaped plate 8 is inserted into the outer side of the outer cylinder of the air inlet 5, causing the air inlet 5 to move. Through the two sets of limiting frames 13 forming a conveying slot and the limiting ring plate 6, the air inlet 5 reaches the inside of the fixed arc plate 41 and is then fixed. By storing the air inlet 5 and then automatically conveying it, the time and effort of the staff to pick it up are saved, and the work efficiency is improved. After the test is completed, the discarded air inlet 5 is directly moved into the collection cylinder 3 for easy collection and processing, which is convenient and practical.

[0033] The solution in this embodiment can be selectively combined with solutions in other embodiments.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A breathalyzer with a replaceable nozzle, comprising a breathalyzer body (1), characterized in that: The upper end of the alcohol detector body (1) is provided with an opening, and an air inlet (5) is provided inside the opening. Fixing mechanisms (4) are provided on both the front and rear sides of the air inlet (5). The fixing mechanism (4) includes a clamping plate (43) abutting against the surface of the air inlet (5). A movable column (42) is provided on the outside of the clamping plate (43). A spring (44) is sleeved on the outside of the movable column (42). One end of the spring (44) is connected to the clamping plate (43), and the other end is connected to a fixed arc plate (41). A limit frame (13) is provided at the lower end of the fixed arc plate (41). The two sets of limit frames (13) form a conveying slot. The limit frame (13) is fixed on the upper end of the alcohol detector body (1). A handle (45) is provided at the end of the movable column (42) that extends outward through the fixed arc plate (41).

2. The alcohol detector with a replaceable breath nozzle according to claim 1, characterized in that: A placement cylinder (14) is provided on one side of the alcohol detector body (1). Air inlets (5) are stacked on the placement cylinder (14). Sealing paper is provided on the upper surface of the air inlets (5). A stop block (7) is provided at the upper end of the placement cylinder (14). A contact sensor (12) is provided at the lower end of the stop block (7). A conveying mechanism (11) is provided at the bottom of the placement cylinder (14). A limiting ring plate (6) is provided outside the air inlets (5). A sliding rod (9) is movably connected to the outside of the placement cylinder (14). A U-shaped plate (8) is provided at one end of the sliding rod (9) near the alcohol detector body (1), and a pull block (10) is provided at the other end.

3. The alcohol detector with a replaceable breath nozzle according to claim 1, characterized in that: The conveying mechanism (11) includes a housing (116) fixed to one side of the placement cylinder (14). A screw (111) is rotatably connected inside the housing (116). A movable block (114) is movably connected to the outside of the screw (111). A support plate (113) is provided on the movable block (114). The support plate (113) is located at the lower end of the air inlet (5) at the bottom layer. A slider (115) is provided on one side of the movable block (114). A fixed rod (112) is slidably connected inside the slider (115). The fixed rod (112) is fixed inside the housing (116).

4. The alcohol detector with a replaceable breath nozzle according to claim 3, characterized in that: The screw (111) has an output end of a motor (118) at one end extending out of the housing (116), and the motor (118) is fixed to the bottom of the housing (116).

5. The alcohol detector with a replaceable breath nozzle according to claim 4, characterized in that: The motor (118) is provided with a frame (117) on its exterior, and the frame (117) is fixed to the lower end of the housing (116).

6. The alcohol detector with a replaceable breath nozzle according to claim 1, characterized in that: A collection tube (3) is provided on the side of the alcohol detector body (1) corresponding to the placement tube (14).

7. The alcohol detector with a replaceable breath nozzle according to claim 1, characterized in that: The bottom of the collecting cylinder (3) is provided with an opening (2).

8. A method for detecting alcohol using a replaceable breathalyzer according to any one of claims 1-7, characterized in that: First, the air inlet 5 is placed into the placement cylinder 14. The motor 118 drives the screw 111 to rotate, thereby moving the movable block 114. Under the limitation of the fixed rod 112 and the slider 115, the movable block 114 moves upward, causing the air inlet 5 to move upward until the uppermost air inlet 5 touches the contact sensor 12, causing the motor 118 to stop moving. This pushes the pull block 10, which moves the sliding rod 9, thereby moving the U-shaped plate 8. The U-shaped plate 8 is inserted into the outer side of the outer cylinder of the air inlet 5. This causes the air inlet 5 to move, forming a conveying trough through two sets of limiting frames 13, and under the limiting action of the limiting ring plate 6, the air inlet 5 reaches the inside of the fixed arc plate 41 and is then fixed. When fixing, pull the handle 45, insert the outer cylinder of the air inlet 5 into the hole, release the handle 45, and under the elastic force of the spring 44, the clamping plate 43 clamps the outer cylinder of the air inlet 5. The air inlet 5 is stored and then automatically conveyed. After the detection is completed, the waste air inlet 5 is directly moved into the collection cylinder 3.