CN219532641U

CN219532641U - Tail gas sampling device for automobile tail gas detection

Info

Publication number: CN219532641U
Application number: CN202320257496.5U
Authority: CN
Inventors: 胡俊敏; 陈松; 王皆佳; 姚文俊; 陈建豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-08-15
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses a tail gas sampling device for automobile tail gas detection, which belongs to the technical field of automobile tail gas detection and comprises a movable plate and a sleeving mechanism, wherein the upper end face of the movable plate is fixedly connected with a sampling outer cover, one face of the sampling outer cover is clamped with a display screen, one face of the sampling outer cover, which is far away from the display screen, is clamped with a conveying pipe, the sleeving mechanism is arranged at one end of the conveying pipe, which is far away from the sampling outer cover, the sleeving mechanism comprises a sleeving pipe and a plugging ring, one end of the sleeving pipe is in threaded connection with the conveying pipe, the plugging ring is sleeved on the outer edge face of the sleeving pipe, one face of the sleeving pipe, which is far away from the conveying pipe, is provided with a sleeving port, the inside of the sampling outer cover is provided with a sampling inner box, the upper end face of the sampling outer cover is fixedly connected with a secondary filter cover, and the middle part of the upper end face of the secondary filter cover is provided with an output hole.

Description

Tail gas sampling device for automobile tail gas detection

Technical Field

The utility model belongs to the technical field of automobile exhaust detection, and particularly relates to an exhaust sampling device for automobile exhaust detection.

Background

Automobile exhaust detection, also known as motor vehicle exhaust detection, refers to the analysis and measurement of the components and concentration of exhaust gas emitted when a motor vehicle is idling or in a working condition on site or on an operation test stand.

Since a large amount of harmful exhaust gas discharged during the running of a motor vehicle is a main flowing pollution source of ambient air, the exhaust gas detection is an important component of the ambient air pollution monitoring. The items detected are mainly carbon monoxide, nitrogen oxides, hydrocarbons, photochemical oxidants and smoke.

When traditional automobile exhaust detects, the exhaust is easy to leak, and the defect is overcome by improved automobile exhaust detection.

Disclosure of Invention

The utility model aims to provide an exhaust sampling device for detecting automobile exhaust, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the tail gas sampling device comprises a movable plate and a sleeving mechanism, wherein the upper end face of the movable plate is fixedly connected with a sampling outer cover, one face of the sampling outer cover is clamped with a display screen, one face of the sampling outer cover, far away from the display screen, is clamped with a conveying pipe, and the sleeving mechanism is arranged at one end, far away from the sampling outer cover, of the conveying pipe;

the inside of above-mentioned sample dustcoat is equipped with the sample inner box, and above-mentioned sample inner box and the up end fixed connection of movable plate, the up end fixedly connected with second grade filter mantle of above-mentioned sample dustcoat, the inside of above-mentioned sample inner box and second grade filter mantle communicates with each other, and the up end middle part of above-mentioned second grade filter mantle is equipped with the output hole.

Preferably, the sleeving mechanism comprises a sleeving pipe and a plugging ring, one end of the sleeving pipe is in threaded connection with the conveying pipe, the plugging ring is sleeved on the outer edge surface of the sleeving pipe, and a sleeving port is arranged on the surface, far away from the conveying pipe, of the sleeving pipe.

Preferably, a gap is formed on one side of the plugging ring, the gap of the plugging ring is penetrated through by a fastening shaft, the fastening shaft is in threaded connection with the gap of the plugging ring, and the fastening shaft is sleeved with the fastening ring on one side of the gap of the plugging ring.

Preferably, a delivery pump is arranged at one end of the delivery pipe extending into the sampling housing, and the delivery pump is communicated with the inside of the sampling inner box through a connecting pipe.

Preferably, a sampling device is arranged in the sampling inner box, a gas analyzer is arranged on one side, far away from the conveying pump, of the sampling inner box, and one surface of the gas analyzer is connected with the display screen in a clamping mode.

Preferably, the upper end face of the sampling inner box is provided with a first filtering device, the upper end face of the first filtering device is provided with an output pipe, the output pipe penetrates through the sampling outer cover to extend into the secondary filtering cover, a discharge chamber is arranged in the secondary filtering cover, and the discharge chamber is communicated with the output pipe.

This tail gas sampling device that automobile exhaust detected and used's technological effect and advantage: because the sleeving mechanism is arranged, the exhaust pipe of the automobile or other motor vehicle is sleeved through the sleeving port, after the sleeving is finished, the tail gas is conveyed through the sleeving port, when the sleeving port is sleeved with the connected exhaust pipe of the automobile or other motor vehicle, the plugging ring is tightened by rotating the fastening shaft and the fastening ring, and the sleeving port is further compressed, so that the sleeving port is firmly sleeved with the exhaust pipe of the automobile or other motor vehicle, and the leakage probability of the tail gas is reduced;

by setting up the first filtering device and the second filtering device, the tail gas entering the inner sampling box through the sleeve port and the conveying pump enters the first filtering device along the inner sampling box under the output of the output pipe after being detected by the sampling device, is filtered at one stage in the first filtering device, is led into the inner part of the discharge chamber through the output pipe, is discharged through the output hole under the extraction of the extraction fan after being filtered at two stages by the second filtering device, and further reduces the detection environmental pollution of tail gas discharge.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the present utility model;

fig. 3 is a cross-sectional view of the embodiment of fig. 1 taken along A-A of the present utility model.

In the figure: 1. a moving plate; 2. a sampling outer cover; 3. a display screen; 4. a delivery tube; 5. a sleeving mechanism; 501. a ferrule; 6. a sleeve interface; 7. a plugging ring; 8. a fastening shaft; 9. a fastening ring; 10. a secondary filter housing; 11. pushing hands; 12. a transfer pump; 13. sampling an inner box; 14. a gas analyzer; 15. a sampling device; 16. a first filtering device; 17. an output pipe; 18. a discharge chamber; 19. a second filtering device; 20. extracting a fan; 21. and an output hole.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, an exhaust sampling device for detecting automobile exhaust includes a moving plate 1 and a sleeving mechanism 5, wherein an upper end face of the moving plate 1 is fixedly connected with a sampling outer cover 2, one face of the sampling outer cover 2 is clamped with a display screen 3, one face of the sampling outer cover 2, which is far away from the display screen 3, is clamped with a conveying pipe 4, the sleeving mechanism 5 is arranged at one end of the conveying pipe 4, which is far away from the sampling outer cover 2, the sleeving mechanism 5 includes a sleeving pipe 501 and a plugging ring 7, one end of the sleeving pipe 501 is in threaded connection with the conveying pipe 4, the plugging ring 7 is sleeved on the outer edge face of the sleeving pipe 501, one face of the sleeving pipe 501, which is far away from the conveying pipe 4, is provided with a sleeving port 6, one side of the plugging ring 7 is provided with a gap, the gap of the plugging ring 7 is penetrated through a fastening shaft 8, the fastening shaft 8 is in threaded connection with the gap of the plugging ring 7, one side of the gap of the plugging ring 8 is sleeved with a fastening ring 9, after the sealing pipe of an automobile or other automobile is sleeved with the plugging port 6, the exterior of the plugging port 6 is tightened by rotating the fastening shaft 8 and the fastening ring 9, so that the plugging ring 7 is further sleeved with the plugging ring 6 is tightly and compressed and sleeved with the automobile exhaust pipe 6 or the automobile exhaust pipe 6 is tightly or tightly sleeved with the plugging port 6;

the inside of the sampling outer cover 2 is provided with a sampling inner box 13, the sampling inner box 13 is fixedly connected with the upper end face of the movable plate 1, one end of the conveying pipe 4 extending into the sampling outer cover 2 is provided with a conveying pump 12, the conveying pump 12 is communicated with the inside of the sampling inner box 13 through a connecting pipe, and after tail gas is input into the conveying pipe 4 through a sleeve joint 6, the tail gas of the conveying pipe 4 is pumped into the inside of the sampling inner box 13 through the conveying pump 12;

the upper end face of the sampling outer cover 2 is fixedly connected with a secondary filter cover 10, a sampling inner box 13 is communicated with the interior of the secondary filter cover 10, a sampling device 15 is arranged in the sampling inner box 13, a gas analyzer 14 is arranged on one side, far away from the conveying pump 12, of the sampling inner box 13, one face of the gas analyzer 14 is connected with the display screen 3 in a clamping mode, tail gas circulating in the sampling inner box 13 is subjected to component detection through the sampling device 15, and components detected by the sampling device 15 are analyzed through the gas analyzer 14 and then are subjected to component concentration display through the display screen 3;

the up end of sampling inner box 13 is equipped with first filter equipment 16, the up end of first filter equipment 16 is equipped with output tube 17, output tube 17 passes the inside that sampling housing 2 extended into second filter housing 10, the inside of second filter housing 10 is equipped with discharge chamber 18, discharge chamber 18 communicates with each other with output tube 17, one side of discharge chamber 18 is equipped with second filter equipment 19, the middle part of discharge chamber 18 is equipped with extraction fan 20, extraction fan 20 communicates with each other with output hole 21, the up end middle part of second filter housing 10 is equipped with output hole 21, the inside tail gas of sampling inner box 13 after finishing the detection through sampling device 15, because the drive of extraction fan 20 of discharge chamber 18, the inside tail gas of sampling inner box 13 carries out first level filtration through the inside of extraction fan 20 guide entering first filter equipment 16, then the inside of discharge chamber 18 is led into through output tube 17 again, through the second filter equipment 19 behind the second filtration through the extraction of extraction fan 20 down through output hole 21 discharge, thereby make the collection of tail gas can reach cyclic reciprocating effect, detection efficiency has been improved, the continuous emission of pollution that causes simultaneously reduces.

When the tail gas sampling device for detecting automobile tail gas is used, the tail gas sampling device is sleeved on an exhaust pipe of an automobile or other motor vehicles through the sleeve joint opening 6, after the sleeve joint is completed, the plugging ring 7 is tightened by rotating the fastening shaft 8 and the fastening ring 9, and the sleeve joint opening 6 is further compressed, so that the sleeve joint opening 6 is firmly sleeved with the exhaust pipe of the automobile or other motor vehicles;

after the tail gas is input into the conveying pipe 4 through the sleeve port 6, the tail gas of the conveying pipe 4 is pumped into the sampling inner box 13 through the conveying pump 12, the tail gas circulated in the sampling inner box 13 is subjected to component detection through the sampling device 15, and the components detected by the sampling device 15 are analyzed through the gas analyzer 14 and then are subjected to component concentration display through the display screen 3;

the tail gas in the sampling inner box 13 enters the first filtering device 16 for first-stage filtering through the guide of the extraction fan 20, is then guided into the discharge chamber 18 through the output pipe 17, is discharged through the output hole 21 under the extraction of the extraction fan 20 after being subjected to second-stage filtering through the second filtering device 19, and reduces the detection environmental pollution caused by the continuous discharge of the tail gas.

The foregoing is only a preferred embodiment of the utility model, but the scope of the utility model is not limited thereto, and any person skilled in the art who is in the field of the utility model can apply equivalent substitution or modification to the technical solution and the inventive concept according to the utility model within the scope of the utility model.

Claims

1. The utility model provides a tail gas sampling device that automobile exhaust detected and used, includes movable plate (1) and cup joints mechanism (5), its characterized in that: the upper end face of the movable plate (1) is fixedly connected with a sampling outer cover (2), one face of the sampling outer cover (2) is clamped with a display screen (3), one face, far away from the display screen (3), of the sampling outer cover (2) is clamped with a conveying pipe (4), and the sleeving mechanism (5) is arranged at one end, far away from the sampling outer cover (2), of the conveying pipe (4);

the inside of sample dustcoat (2) is equipped with sample inner box (13), the up end fixed connection of sample inner box (13) and movable plate (1), the up end fixedly connected with second grade filter mantle (10) of sample dustcoat (2), the inside of sample inner box (13) and second grade filter mantle (10) communicates with each other, the up end middle part of second grade filter mantle (10) is equipped with output hole (21).

2. The exhaust sampling device for detecting automobile exhaust according to claim 1, wherein: the sleeving mechanism (5) comprises a sleeving pipe (501) and a plugging ring (7), one end of the sleeving pipe (501) is in threaded connection with the conveying pipe (4), the plugging ring (7) is sleeved on the outer edge surface of the sleeving pipe (501), and a sleeving port (6) is arranged on one surface, far away from the conveying pipe (4), of the sleeving pipe (501).

3. The exhaust sampling device for detecting automobile exhaust according to claim 2, wherein: one side of the plugging ring (7) is provided with a notch, the notch of the plugging ring (7) is penetrated through by a fastening shaft (8), the fastening shaft (8) is in threaded connection with the notch of the plugging ring (7), and one side of the fastening shaft (8) penetrating through the notch of the plugging ring (7) is sleeved with a fastening ring (9).

4. The exhaust sampling device for detecting automobile exhaust according to claim 1, wherein: one end of the conveying pipe (4) extending into the sampling outer cover (2) is provided with a conveying pump (12), and the conveying pump (12) is communicated with the inside of the sampling inner box (13) through a connecting pipe.

5. The exhaust sampling device for detecting automobile exhaust according to claim 4, wherein: the inside of sampling inner box (13) is equipped with sampling device (15), one side that delivery pump (12) was kept away from to sampling inner box (13) is equipped with gas analysis appearance (14), the one side and the display screen (3) block of gas analysis appearance (14) are connected.

6. The exhaust sampling device for detecting automobile exhaust according to claim 5, wherein: the upper end face of the sampling inner box (13) is provided with a first filtering device (16), the upper end face of the first filtering device (16) is provided with an output pipe (17), the output pipe (17) penetrates through the sampling outer cover (2) to extend into the secondary filtering cover (10), a discharge chamber (18) is arranged in the secondary filtering cover (10), and the discharge chamber (18) is communicated with the output pipe (17).