CN215178957U

CN215178957U - Motor vehicle tail gas on-site sampling detection device

Info

Publication number: CN215178957U
Application number: CN202121218039.2U
Authority: CN
Inventors: 曾峻鹏; 伍思凯; 李顺泉; 陈林梅; 陈占阳
Original assignee: Guangdong Jianyan Environmental Monitoring Co ltd
Current assignee: Guangdong Jianyan Environmental Monitoring Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-14
Anticipated expiration: 2031-06-02

Abstract

The utility model provides an on-spot sampling detection device of motor vehicle exhaust, includes detection case, detection sensor group, sampling device and separation device, separation device including the baffle that can remove in the through-hole, the baffle one end of keeping away from the through-hole be equipped with the baffle, baffle and detection case between be equipped with spring two. The utility model has the advantages that: the utility model discloses be equipped with two sampling device, applicable double exhaust pipe's motor vehicle detects tail gas and only needs once, and spring one can drive the connecting rod and stretch out and draw back in the recess simultaneously, adjusts the height of blast pipe collar to be applicable to the motor vehicle of chassis difference in height, labour saving and time saving is favorable to work efficiency's improvement.

Description

Motor vehicle tail gas on-site sampling detection device

Technical Field

The utility model relates to a tail gas detection technical field, in particular to on-spot sampling detection device of motor vehicle tail gas.

Background

In recent years, the motor vehicle industry in China is rapidly developed, the motor vehicles bring great convenience to people's life, but the problem of air pollution is caused at the same time, annual inspection and tail gas detection are required to be carried out on the motor vehicles according to regulations, daily detection of tail gas of the motor vehicles is always a problem which is required to be solved by detection departments, detection personnel are required to carry relevant equipment to carry out detection in the detection process, the motor vehicles correspond to different motor vehicles, one or two exhaust pipes of the motor vehicles are provided, the two exhaust pipes are required to be tested twice, the chassis heights of the motor vehicles are different, tail gas collection is troublesome, time and labor are wasted, and the improvement of the working efficiency is not facilitated.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a motor vehicle exhaust on-spot sampling detection device.

In order to achieve the above object, the utility model adopts the following technical scheme:

a field sampling detection device for motor vehicle tail gas comprises a detection box, wherein a tail gas detection cavity is arranged in the detection box, an exhaust port is formed in one side of the detection box and communicated with the tail gas detection cavity, a detection sensor group is arranged in the tail gas detection cavity, a sampling device is oppositely arranged on one side of the detection box, which is far away from the exhaust port, the sampling device comprises a hose connected with the tail gas detection cavity, an exhaust pipe mounting ring is arranged on one side of the hose, which is far away from the tail gas detection cavity, a connecting rod is arranged below the exhaust pipe mounting ring, a supporting rod is arranged on the outer side of the connecting rod, a groove is formed in one end, which is close to the connecting rod, of the supporting rod, a first spring is arranged in the groove, the connecting rod is connected with the bottom of the groove, a supporting plate is arranged at one end, which is far away from the groove, a through hole is formed above one side, which is close to the hose, of the tail gas detection cavity, the through-hole in be equipped with separation device, separation device including can be at the through-hole removal baffle, the baffle keep away from the one end of through-hole and be equipped with the baffle, baffle and detection case between be equipped with spring two.

Further, the exhaust port be close to one side in tail gas detection chamber and be equipped with honeycomb ceramic filter, honeycomb ceramic filter can filter tail gas and discharge from the exhaust port.

Further, the detection sensor group comprises a carbon monoxide sensor, a carbon dioxide sensor, a semiconductor ammonia gas sensor, an PM. sensor and an oxygen sensor.

Furthermore, the supporting plate is provided with a rolling wheel at one end far away from the supporting rod, and the rolling wheel can drive the sampling device to move, so that the sampling device is easier and simpler to install.

Further, the baffle on be equipped with the pinhole, detection case upper end be equipped with the round pin ring that the cooperation pinhole used, the round pin ring in be equipped with the locating pin, when testing the blast pipe of a motor vehicle, the pinhole on locating pin cooperation round pin ring and the baffle is used, can let the baffle plug up a hose.

The utility model has the advantages that: the utility model discloses be equipped with two sampling device, applicable double exhaust pipe's motor vehicle detects tail gas and only needs once, and spring one can drive the connecting rod and stretch out and draw back in the recess simultaneously, adjusts the height of blast pipe collar to be applicable to the motor vehicle of chassis difference in height, labour saving and time saving is favorable to work efficiency's improvement.

Drawings

Fig. 1 is a front view of the device for on-site sampling and detecting of motor vehicle exhaust.

Fig. 2 is a sectional view of the detection box of the field sampling and detecting device for the tail gas of the motor vehicle.

Fig. 3 is a top view of the detection box of the field sampling and detecting device for motor vehicle exhaust.

Fig. 4 is a right side view of the blocking device of the field sampling and detecting device for the tail gas of the motor vehicle of the present invention.

Fig. 5 is an internal schematic view of the supporting rod of the field sampling and detecting device for motor vehicle exhaust of the present invention.

As shown in the figure: 1. the detection case, 1.1, the gas vent, 1.2, honeycomb ceramic filter, 2, tail gas detection chamber, 2.1, the through-hole, 3, detect sensor group, 4, sampling device, 4.1, the hose, 4.2, the blast pipe collar, 4.3, the connecting rod, 4.4, the bracing piece, 4.41, the recess, 4.5, spring one, 4.6, the backup pad, 5, the separation device, 5.1, the baffle, 5.2, the baffle, 5.3, spring two, 6, the pin ring.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

In order to make the content of the present invention more clearly understood, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the present invention.

With reference to the attached drawings 1-5, a field sampling and detecting device for motor vehicle exhaust comprises a detection box 1, a tail gas detection cavity 2 is arranged inside the detection box 1, an exhaust port 1.1 and an exhaust port 1.1 are arranged on one side of the detection box 1 and communicated with the tail gas detection cavity 2, a detection sensor group 3 is arranged in the tail gas detection cavity 2, a sampling device 4 is arranged on one side of the detection box 1 far away from the exhaust port 1.1, the sampling device 4 comprises a hose 4.1 connected with the tail gas detection cavity 2, an exhaust pipe mounting ring 4.2 is arranged on one side of the hose 4.1 far away from the tail gas detection cavity 2, a connecting rod 4.3 is arranged below the exhaust pipe mounting ring 4.2, a supporting rod 4.4 is arranged on the outer side of the connecting rod 4.3, a groove 4.41 is arranged at one end of the supporting rod 4.4 close to the connecting rod 4.3, a spring 4.5 is arranged in the groove 4.41 and is connected with the bottoms of the connecting rod 4.3 and the groove 4.41, bracing piece 4.4 one end of keeping away from recess 4.41 be equipped with backup pad 4.6, one side top that tail gas detection chamber 2 is close to hose 4.1 be equipped with through-hole 2.1, through-hole 2.1 in be equipped with separation device 5, separation device 5 including can be at through-hole 2.1 internal removal baffle 5.1, baffle 5.1 one end of keeping away from through-hole 2.1 be equipped with baffle 5.2, baffle 5.2 and detection case 1 between be equipped with spring two 5.3.

One side of the exhaust port 1.1 close to the exhaust gas detection cavity 2 is provided with a honeycomb ceramic filter sheet 1.2, when the exhaust gas of the motor vehicle is transmitted to the exhaust gas detection cavity 2 through a hose, the exhaust gas is purified through the honeycomb ceramic filter sheet 1.2 and is discharged from the exhaust port 1.1.

Detect sensor group 3 include carbon monoxide sensor, carbon dioxide sensor, semiconductor ammonia gas sensor, PM2.5 sensor and oxygen sensor, the utility model discloses a when concrete implementation: when the tail gas of the motor vehicle is transmitted into the tail gas detection cavity 2 through the hose, the carbon monoxide sensor, the carbon dioxide sensor, the semiconductor ammonia gas sensor, the PM2.5 sensor and the oxygen sensor can detect the content of the tail gas in real time.

Backup pad 4.6 one end of keeping away from bracing piece 4.4 be equipped with the wheel that rolls relatively, the sampling device 4 that the wheel that rolls can take removes, the utility model discloses an when concrete implementation: the exhaust pipe mounting ring 4.2 and the connecting rod 4.3 are of inclined structures, exhaust pipes of motor vehicles are inclined downwards, and the exhaust pipe mounting ring 4.2 can be directly clamped on the outer side of the exhaust pipes.

Baffle 5.1 on be equipped with the pinhole, 1 upper end of detection case be equipped with the round pin ring 6 that the cooperation pinhole used, round pin ring 6 in be equipped with the locating pin, when the blast pipe of motor vehicle only one, in order to prevent that exhaust emission from discharging from another sampling device 4, can press baffle 5.2, the compression of spring two 5.3, baffle 5.1 removes in through-hole 2.1, plugs up hose 4.1, the locating pin passes pinhole and round pin ring 6 and fixes.

The utility model discloses a theory of operation: the blocking device is used according to the number of the exhaust pipes of the motor vehicle, when only one exhaust pipe of the motor vehicle is used, in order to prevent exhaust emission from being discharged from the other sampling device, the baffle plate can be pressed, the spring II is compressed, the baffle plate moves in the through hole to block the hose, the positioning pin penetrates through the pin hole and the pin ring to be fixed, the other sampling device is pushed to move to the exhaust pipe through the rolling wheel, the connecting rod can be driven to stretch in the groove through the external force compression spring I to adjust the height of the exhaust pipe mounting ring, the blocking device is suitable for the motor vehicles with different chassis heights, the exhaust pipe mounting ring can be directly clamped on the outer side of the exhaust pipe, then the motor vehicle is started, exhaust is discharged through the hose, and when the exhaust detection cavity is used, the carbon monoxide sensor, the carbon dioxide sensor, the semiconductor ammonia gas sensor, the PM2.5 sensor and the oxygen sensor can detect the content of the exhaust in real time, and finally, the exhaust gas is purified by the honeycomb ceramic filter plate and discharged from an exhaust port, if the exhaust pipe is a double exhaust pipe, the positioning pin and the spring II are taken down to stretch, the baffle plate and the partition plate are driven to be away from the through hole, and the exhaust pipe mounting ring of the sampling device is clamped on the outer side of the exhaust pipe to detect the exhaust gas of the motor vehicle.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The field sampling and detecting device for the tail gas of the motor vehicle comprises a detecting box (1) and is characterized in that a tail gas detecting cavity (2) is arranged inside the detecting box (1), one side of the detecting box (1) is provided with a gas exhaust port (1.1) and the gas exhaust port (1.1) is communicated with the tail gas detecting cavity (2), a detecting sensor group (3) is arranged in the tail gas detecting cavity (2), one side of the detecting box (1) far away from the gas exhaust port (1.1) is relatively provided with a sampling device (4), the sampling device (4) comprises a hose (4.1) connected with the tail gas detecting cavity (2), one side of the hose (4.1) far away from the tail gas detecting cavity (2) is provided with a gas exhaust pipe mounting ring (4.2), a connecting rod (4.3) is arranged below the gas exhaust pipe mounting ring (4.2), and a support rod (4.4) is arranged outside the connecting rod (4.3), bracing piece (4.4) one end that is close to connecting rod (4.3) be equipped with recess (4.41), recess (4.41) in be equipped with spring (4.5), spring (4.5) connect the bottom of connecting rod (4.3) and recess (4.41), bracing piece (4.4) one end of keeping away from recess (4.41) be equipped with backup pad (4.6), tail gas detect one side top that chamber (2) are close to hose (4.1) be equipped with through-hole (2.1), through-hole (2.1) in be equipped with separation device (5), separation device (5) including baffle (5.1) that can remove in through-hole (2.1), baffle (5.1) keep away from the one end of through-hole (2.1) and be equipped with baffle (5.2), baffle (5.2) and detection case (1) between be equipped with spring two (5.3).

2. The on-site sampling and detecting device for the motor vehicle exhaust according to claim 1, characterized in that: and a honeycomb ceramic filter (1.2) is arranged on one side of the exhaust port (1.1) close to the tail gas detection cavity (2).

3. The on-site sampling and detecting device for the motor vehicle exhaust according to claim 1, characterized in that: the detection sensor group (3) comprises a carbon monoxide sensor, a carbon dioxide sensor, a semiconductor ammonia gas sensor, a PM2.5 sensor and an oxygen sensor.

4. The on-site sampling and detecting device for the motor vehicle exhaust according to claim 1, characterized in that: and rolling wheels are oppositely arranged at one end of the support plate (4.6) far away from the support rod (4.4).

5. The on-site sampling and detecting device for the motor vehicle exhaust according to claim 1, characterized in that: the baffle (5.1) on be equipped with the pinhole, detection case (1) upper end be equipped with pin ring (6) that the cooperation pinhole used, pin ring (6) in be equipped with the locating pin.