Alcohol sensor

Abstract

The utility model relates to the technical field of sensors, and provides an alcohol sensor which comprises a shell; the two first ventilation grooves are formed in the opposite side surfaces of the shell, a limiting groove is formed in the surface of one side of the shell, and a push block is movably embedded in the limiting groove; and the mounting plate is fixedly mounted on the inner wall of the shell. According to the utility model, when a detector pushes a push block in a limiting groove, a connecting rod and a rack on the surface are driven to move, and the rack is engaged with a gear, so that a rotating shaft is driven to rotate, a fan on the surface is driven to rotate, and residual gas in a sensor shell is volatilized; and through cooperation of a first ventilation groove and a second ventilation groove in the surface, when a detector loosens the hand, the connecting block is rapidly reset, next operation is facilitated, gas possibly containing alcohol inside is discharged after detection, secondary detection is facilitated, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to an alcohol sensor. Background Art

[0002] Alcohol sensors are generally used to detect whether a person has consumed alcohol and the degree of alcohol consumed. They can be used as a detection tool for traffic police to detect how much alcohol a driver has consumed when enforcing the law, so as to effectively reduce the occurrence of major traffic accidents; they can also be used in other occasions to detect the alcohol content in the exhaled breath of the human body to avoid casualties and major property losses, such as some high-risk areas where companies prohibit drunk drivers from working.

[0003] However, in the prior art, such as in Chinese Patent No. CN202222193505.7, in particular, a new alcohol sensor comprises: a sensor bottom shell and a sensor upper cover connected in sequence, a reaction chamber is provided in the sensor bottom shell, a first support portion is provided in the reaction chamber, an alcohol diaphragm with a catalyst is installed on the first support portion, two electrodes are penetrated through the side wall of the sensor bottom shell, a first annularly arranged first liquid reservoir is provided on the first support portion, and the first liquid reservoir is used to store the acidic electrolyte overflowing from the alcohol diaphragm. By providing the sensor bottom shell with a first support portion located in the reaction chamber, an alcohol diaphragm with a catalyst is installed on the first support portion, and a first annularly arranged first liquid reservoir is provided on the first support portion, the first liquid reservoir plays a storage role, thereby providing a new alcohol sensor that can store the acidic electrolyte overflowing from the alcohol diaphragm to prevent acid overflow.

[0004] However, the prior art has the following disadvantages when in use: some of the existing alcohol testing equipment currently collects the breath gas of the test person into the alcohol sensor for analysis when in use, and when the gas containing alcohol comes into contact with the air, it is easy to volatilize, so it is necessary to directly test the gas exhaled by the test person, and at the same time, some testing equipment is prone to residual alcohol-containing gas after the initial test, which can easily lead to inaccurate data when performing multiple measurements. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that some of the existing alcohol testing equipment, when in use, basically collects the breath gas of the test person and puts it into the alcohol sensor for analysis, and when the gas containing alcohol comes into contact with the air, it is easy to cause volatilization, so it is necessary to make the gas exhaled by the test person to be directly tested, and at the same time, some testing equipment is easy to have residual gas containing alcohol inside after the initial test, which easily leads to inaccurate data when multiple measurements are performed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an alcohol sensor comprises: a housing; two ventilation slots, both of which are arranged on opposite side surfaces of the housing; a limiting slot is arranged on one side surface of the housing, and a push block is movably embedded in the limiting slot; and further comprises:

[0007] A mounting plate is fixedly mounted on the inner wall of the housing, a sensor housing is fixedly mounted on a surface of the mounting plate close to the limiting groove, a filter plate is fixedly mounted on a surface of the sensor housing close to the limiting groove, and a sealing tube is fixedly mounted on an outer surface of the sensor housing;

[0008] The detection control board is fixedly mounted on the inner wall of the sensor housing. A sensing diaphragm is arranged on one side surface of the sensor housing close to the limiting groove. A connecting pin is fixedly mounted on one side surface of the detection control board.

[0009] Preferably, a reaction display is fixedly mounted on a surface of a side of the connecting pin away from the detection control board, and a rotating shaft is movably embedded on a surface of a side of the mounting plate away from the sensor housing.

[0010] Preferably, a gear is fixedly mounted on the outer surface of one end of the rotating shaft close to the mounting plate, and a fan is fixedly mounted on the outer surface of one end of the rotating shaft away from the mounting plate.

[0011] Preferably, one side surface of the reaction display is fixedly mounted on the inner wall of the shell, a second ventilation groove is provided on the side surface of the shell away from the reaction display, and a slide groove is provided on the outer surface of the opposite side of the sensor housing.

[0012] Preferably, stoppers are movably embedded inside the two slide grooves, and a connecting block is fixedly mounted on a surface of the push block on one side away from the limiting groove.

[0013] Preferably, a plurality of springs are fixedly mounted on one side surface of the connection block, and one side surfaces of the plurality of springs are fixedly mounted on the inner wall of the outer shell.

[0014] Preferably, a connecting rod is fixedly mounted on a surface of one side of the connecting block away from the spring, and the opposite part of the surface of one side of the connecting rod is fixedly mounted on the surface of the stopper.

[0015] Preferably, a rack is fixedly mounted on a surface of one side of the connection block away from the spring, and an outer surface of the rack is meshed with the fan.

[0016] Compared with the prior art, the advantages and positive effects of the utility model are:

[0017] 1. A mounting plate is installed inside the shell, and a sensor housing is fixedly installed on the surface of the mounting plate. A detection control board is installed on the surface of the sensor housing, which is connected to the surface of the shell through the detection control board. When the user aligns the detection control board with the detection personnel, the gas exhaled by the detected person enters the interior of the sensor housing through the detection control board, and passes through the filter plate on the surface of the sensor housing to prevent foreign matter from being spit out when exhaling. When the exhaled gas contacts the sensor diaphragm, when the gas contains alcohol, it is connected to the surface of the detection control board through the resistance wire on the surface of the sensor diaphragm. When the user connects the power system of the overall device, the detection control board is started to work, and the data detected by the detection control board is transmitted to the inner wall of the reaction display through the connecting pins, so as to be reflected to the detection personnel for viewing. The operation is simple, and it is convenient for rapid detection and improves the detection efficiency.

[0018] 2. At the same time, a rotating shaft is movably embedded on the surface of one side of the mounting plate, and gears and fans are fixedly installed at different positions on the surface of the rotating shaft. A limiting groove is opened on the surface of the outer shell. When the inspector pushes the push block inside the limiting groove, the connecting block on one side of the push block is driven to move. When the connecting block moves, the connecting rod and the rack on the surface are driven to move. The rack is meshed with the gear, thereby driving the rotating shaft to rotate, thereby driving the fan on the surface to rotate. At the same time, the connecting rod drives the stopper on the surface to move inside the slide slot, thereby opening the slide slot, so that the residual gas inside the sensor housing is volatilized and discharged through the ventilation slot 1 and the ventilation slot 2 on the surface. At the same time, the two ends of the spring are respectively connected to the surface of the outer shell and the connecting block. When the inspector lets go, the connecting block is quickly reset, which is convenient for the next operation. After the detection, the gas that may be very alcoholic inside is discharged, which is convenient for detection again and improves the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the top view of the alcohol sensor is provided for the utility model;

[0020] Figure 2 A schematic diagram of the longitudinal cross-sectional structure of an alcohol sensor is provided for the utility model;

[0021] Figure 3 A schematic diagram of a transverse cross-sectional structure of an alcohol sensor is provided for the utility model;

[0022] Figure 4 The utility model provides a partial internal structure schematic diagram of an alcohol sensor.

[0023] Legend:

[0024] 1. Shell; 101. Ventilation slot 1; 102. Ventilation slot 2; 103. Limiting slot; 104. Push block; 105. Connecting block; 106. Spring; 107. Connecting rod; 108. Rack; 2. Mounting plate; 201. Rotating shaft; 202. Gear; 203. Fan; 204. Sensor housing; 205. Slide; 206. Block; 207. Filter plate; 208. Sensor diaphragm; 209. Detection control board; 210. Connecting pin; 211. Reaction display; 212. Sealing tube. Implementation

[0025] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0027] Embodiment 1, as Figure 1-4 As shown, the utility model provides an alcohol sensor, comprising: a shell 1; two ventilation slots 101, both of which are arranged on opposite side surfaces of the shell 1, a limiting slot 103 is arranged on one side surface of the shell 1, and a push block 104 is movably embedded inside the limiting slot 103; it also includes: a mounting plate 2, which is fixedly mounted on the inner wall of the shell 1, a sensor housing 204 is fixedly mounted on one side surface of the mounting plate 2 close to the limiting slot 103, a filter plate 207 is fixedly mounted on the surface of the sensor housing 204 close to the limiting slot 103, and a sealing tube 212 is fixedly mounted on the outer surface of the sensor housing 204; a detection control board 209, which is fixedly mounted on the inner wall of the sensor housing 204, a sensing diaphragm 208 is arranged on one side surface of the sensor housing 204 close to the limiting slot 103, and a connecting pin 210 is fixedly mounted on one side surface of the detection control board 209.

[0028] In this embodiment, a mounting plate 2 is installed inside the shell 1, and a sensor housing 204 is fixedly installed on the surface of the mounting plate 2. A detection control board 209 is installed on the surface of the sensor housing 204. The detection control board 209 is connected to the surface of the shell 1. When the user aligns the detection control board 209 with the detection person, the gas exhaled by the detected person enters the interior of the sensor housing 204 through the detection control board 209, and passes through the filter plate 207 on the surface of the sensor housing 204 to prevent foreign matter from being spit out when exhaling. When the exhaled gas contacts the sensor diaphragm 208, when the gas contains alcohol, it is connected to the surface of the detection control board 209 through the resistance wire on the surface of the sensor diaphragm 208. When the user connects the power system of the overall device, the detection control board 209 is started to work, and the data detected by the detection control board 209 is transmitted to the inner wall of the reaction display 211 through the connecting pin 210, so as to be reflected to the detection personnel for viewing. While the operation is simple, it is convenient for rapid detection and improves the detection efficiency.

[0029] In Example 2, a reaction display 211 is fixedly installed on the surface of the connecting pin 210 away from the detection control board 209, a rotating shaft 201 is movably embedded on the surface of the mounting plate 2 away from the sensor housing 204, a gear 202 is fixedly installed on the outer surface of the rotating shaft 201 close to one end of the mounting plate 2, a fan 203 is fixedly installed on the outer surface of the end of the rotating shaft 201 away from the mounting plate 2, one side of the reaction display 211 is fixedly installed on the inner wall of the housing 1, a ventilation groove 2102 is provided on the surface of the housing 1 away from the reaction display 211, and a slide groove 205 is provided on the outer surface of the opposite side of the sensor housing 204 A stopper 206 is movably embedded inside the two slide grooves 205, a connecting block 105 is fixedly installed on the side surface of the push block 104 away from the limiting groove 103, a plurality of springs 106 are fixedly installed on the side surface of the connecting block 105, and one side surface of the plurality of springs 106 are fixedly installed on the inner wall of the shell 1, a connecting rod 107 is fixedly installed on the side surface of the connecting block 105 away from the spring 106, and the opposite part of one side surface of the connecting rod 107 is fixedly installed on the surface of the stopper 206, a rack 108 is fixedly installed on the side surface of the connecting block 105 away from the spring 106, and the outer surface of the rack 108 is meshed with the fan 203.

[0030] In this embodiment, a rotating shaft 201 is movably embedded in the surface of one side of the mounting plate 2, and gears 202 and fans 203 are fixedly installed at different positions on the surface of the rotating shaft 201. A limiting groove 103 is provided on the surface of the housing 1. When the inspector pushes the push block 104 inside the limiting groove 103, the connecting block 105 on the surface of one side of the push block 104 is driven to move. When the connecting block 105 moves, the connecting rod 107 and the rack 108 on the surface are driven to move. The rack 108 is meshed with the gear 202, thereby driving the rotating shaft 201 to rotate, thereby driving the fan 2 on the surface. 03 rotates, and at the same time, the connecting rod 107 drives the surface stopper 206 to move inside the slide groove 205, thereby opening the slide groove 205, so that the residual gas inside the sensor housing 204 is volatilized and discharged through the ventilation groove 1 101 and the ventilation groove 2 102 on the surface. At the same time, the two ends of the spring 106 are respectively connected to the surface of the shell 1 and the connecting block 105. When the inspector lets go, the connecting block 105 is quickly reset, which is convenient for the next operation. After the detection, the gas that may be very alcoholic inside is discharged, which is convenient for re-detection and improves the accuracy of the detection.

[0031] Working principle: a mounting plate 2 is installed inside the housing 1, and a sensor housing 204 is fixedly installed on the surface of the mounting plate 2. A detection control board 209 is installed on the surface of the sensor housing 204, and the detection control board 209 is connected to the surface of the housing 1. When the user aligns the detection control board 209 with the detection person, the gas exhaled by the detected person enters the interior of the sensor housing 204 through the detection control board 209, and passes through the filter plate 207 on the surface of the sensor housing 204 to prevent foreign matter from being spit out when exhaling. When the exhaled gas contacts the sensor diaphragm 208, when the gas contains alcohol, it is connected to the surface of the detection control board 209 through the resistance wire on the surface of the sensor diaphragm 208. When the user connects the power system of the overall device, the detection control board 209 is started to work, and the data detected by the detection control board 209 is transmitted to the inner wall of the reaction display 211 through the connecting pin 210, so as to be reflected to the detection personnel for viewing. While the operation is simple, it is convenient for rapid detection and improves the detection efficiency. At the same time, a rotating shaft 201 is movably embedded on the surface of one side of the mounting plate 2, and Gears 202 and fans 203 are fixedly installed at different positions on the surface of the rotating shaft 201. A limit slot 103 is provided on the surface of the housing 1. When the inspector pushes the push block 104 inside the limit slot 103, the connecting block 105 on one side of the push block 104 is driven to move. When the connecting block 105 moves, the connecting rod 107 and the rack 108 on the surface are driven to move. The rack 108 is meshed with the gear 202, thereby driving the rotating shaft 201 to rotate, thereby driving the fan 203 on the surface to rotate, and at the same time, the connecting rod 107 drives the fan 203 to rotate. The stopper 206 on the moving surface moves inside the slide groove 205, thereby opening the slide groove 205, allowing the residual gas inside the sensor housing 204 to volatilize and be discharged through the ventilation groove 101 and the ventilation groove 2 102 on the surface. At the same time, the two ends of the spring 106 are respectively connected to the surface of the shell 1 and the connecting block 105. When the inspector lets go, the connecting block 105 is quickly reset to facilitate the next operation. After the inspection, the gas that may contain a lot of alcohol inside is discharged to facilitate re-inspection, thereby improving the accuracy of the inspection.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. Alcohol sensor, including: A housing (1); two ventilation slots (101) are provided on opposite side surfaces of the housing (1); a limiting slot (103) is provided on one side surface of the housing (1); a push block (104) is movably embedded in the limiting slot (103); and the housing further comprises: A mounting plate (2) is fixedly mounted on the inner wall of the housing (1); a sensor housing (204) is fixedly mounted on a surface of the mounting plate (2) close to the limiting groove (103); a filter plate (207) is fixedly mounted on a surface of the sensor housing (204) close to the limiting groove (103); and a sealing tube (212) is fixedly mounted on an outer surface of the sensor housing (204); A detection control board (209) is fixedly mounted on the inner wall of the sensor housing (204); a sensing diaphragm (208) is provided on a surface of one side of the sensor housing (204) close to the limit groove (103); and a connecting pin (210) is fixedly mounted on a surface of one side of the detection control board (209).

2. The alcohol sensor according to claim 1, characterized in that: A reaction display (211) is fixedly mounted on a surface of the connection pin (210) on one side away from the detection control board (209), and a rotating shaft (201) is movably embedded on a surface of the installation board (2) on one side away from the sensor housing (204).

3. The alcohol sensor according to claim 2, characterized in that: A gear (202) is fixedly mounted on the outer surface of one end of the rotating shaft (201) close to the mounting plate (2), and a fan (203) is fixedly mounted on the outer surface of one end of the rotating shaft (201) away from the mounting plate (2).

4. The alcohol sensor according to claim 3, characterized in that: One side surface of the reaction display (211) is fixedly mounted on the inner wall of the housing (1), a second ventilation groove (102) is provided on the side surface of the housing (1) away from the reaction display (211), and a slide groove (205) is provided on the outer surface of the opposite side of the sensor housing (204).

5. The alcohol sensor according to claim 4, characterized in that: A stopper (206) is movably embedded in the interior of the two slide grooves (205), and a connecting block (105) is fixedly mounted on a surface of a side of the push block (104) away from the limiting groove (103).

6. The alcohol sensor according to claim 5, characterized in that: A plurality of springs (106) are fixedly mounted on one side surface of the connection block (105), and one side surfaces of the plurality of springs (106) are all fixedly mounted on the inner wall of the housing (1).

7. The alcohol sensor according to claim 6, characterized in that: A connecting rod (107) is fixedly mounted on a surface of one side of the connecting block (105) away from the spring (106), and the opposite portion of the surface of one side of the connecting rod (107) is fixedly mounted on the surface of the stopper (206).

8. The alcohol sensor according to claim 7, characterized in that: A rack (108) is fixedly mounted on a surface of one side of the connection block (105) away from the spring (106), and an outer surface of the rack (108) is meshed with the fan (203).

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