CN-224231385-U - Motor vehicle waste gas collection structure

CN224231385UCN 224231385 UCN224231385 UCN 224231385UCN-224231385-U

Abstract

The utility model relates to the technical field of waste gas collection and discloses a motor vehicle waste gas collection structure, which comprises a collection bottle, wherein a top cover is connected to the top of the collection bottle in a threaded manner, a first air inlet pipe and a first air outlet pipe are arranged at the top of the top cover, a connecting assembly is arranged between the first air inlet pipe and the first air outlet pipe, the connecting assembly comprises a connecting plate, the inside of the connecting plate is fixedly connected to the outer walls of the first air inlet pipe and the first air outlet pipe, a connecting pipe is fixedly connected to the bottom of the connecting plate, and a connecting ring is fixedly connected to the outer wall of the connecting pipe. According to the utility model, the air inlet plug is inserted into the exhaust pipe of the motor vehicle, the fan sucks exhaust gas into the collecting bottle through the air inlet pipe at one end of the air inlet plug, and the exhaust gas is suspended at the top of the collecting bottle due to higher temperature, so that one end of the air outlet pipe is connected with the extension pipe, air can be discharged as much as possible, the effect of conveniently collecting the exhaust gas by the connecting pipe is achieved, the problem that a collected sample is polluted easily is solved, and the practicability of exhaust gas collection is improved.

Inventors

WANG QIANQIAN
Yue Huanjuan
YANG QINGRONG
LIU JIANPENG
ZHANG CHAOYUE
LIU RUOTONG
Cheng Yalun
CHEN YAPING
CHEN JUNRU
ZHANG XIANWEI

Assignees

河南泊月生态环境科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250530

Claims (8)

1. The motor vehicle waste gas collecting structure comprises a collecting bottle (1) and is characterized in that the top of the collecting bottle (1) is connected with a top cover (2) in a threaded mode, an air inlet pipe I (3) and an air outlet pipe (5) are arranged at the top of the top cover (2), and a connecting component is arranged between the air inlet pipe I (3) and the air outlet pipe (5); The connecting assembly comprises a connecting plate (10), the inside fixed connection of connecting plate (10) is at intake pipe one (3) and outlet duct (5) outer wall, connecting plate (10) bottom fixedly connected with connecting pipe (12), connecting pipe (12) outer wall fixedly connected with go-between (14), top cap (2) inside fixedly connected with intake pipe two (9), top cap (2) inside fixedly connected with extension pipe (8), connecting pipe (12) sliding connection is inside top cap (2), draw-in groove (13) have been seted up to top cap (2) inside, go-between (14) and draw-in groove (13) are gomphosis mutually, connecting pipe (12) outer wall is provided with seal assembly, intake pipe one (3) one end fixedly connected with air inlet plug (4), outlet duct (5) one end is provided with cartridge filter (6), inside fixedly connected with fan (7) of cartridge filter (6).
2. The exhaust gas collecting structure of a motor vehicle according to claim 1, wherein the sealing assembly comprises a sealing ring (15), the inner wall of the sealing ring (15) is fixedly connected to the outer wall of the connecting pipe (12), and the outer wall of the sealing ring (15) is attached to the inner wall of the top cover (2).
3. The motor vehicle exhaust gas collecting structure according to claim 1, wherein the top of the filter cartridge (6) is in threaded connection with a sealing cover (16), and the inside of the sealing cover (16) is fixedly connected with one end of the air outlet pipe (5).
4. The motor vehicle exhaust gas collecting structure according to claim 1, wherein a spacer ring (20) is fixedly connected to the inside of the filter cartridge (6), a fixing ring (21) is arranged in the filter cartridge (6), a filter screen (22) is fixedly connected to the bottom of the fixing ring (21), and a limit groove (23) is formed in the fixing ring (21).
5. A motor vehicle exhaust gas collecting structure according to claim 3, wherein the first telescopic rod (17) is fixedly connected to the inside of the sealing cover (16), the second telescopic rod (18) is slidingly connected to the inside of the first telescopic rod (17), and a second spring (19) is sleeved inside the first telescopic rod (17).
6. The exhaust gas collecting structure for a motor vehicle according to claim 5, wherein one end of the second spring (19) is fixedly connected to the inside of the first telescopic rod (17), and the other end of the second spring (19) is fixedly connected to the top of the second telescopic rod (18).
7. The motor vehicle exhaust gas collecting structure according to claim 1, wherein a limiting plate (24) is slidably connected inside the filter cartridge (6), a limiting column (25) is fixedly connected to one side of the limiting plate (24), and the limiting column (25) is embedded with the limiting groove (23).
8. The motor vehicle exhaust gas collecting structure according to claim 1, wherein a first spring (11) is arranged in the filter cartridge (6), one end of the first spring (11) is fixedly connected to the other side of the limiting plate (24), and the other end of the first spring (11) is fixedly connected to the inside of the filter cartridge (6).

Description

Motor vehicle waste gas collection structure Technical Field The utility model relates to the technical field of waste gas collection, in particular to a motor vehicle waste gas collection structure. Background The tail gas of the motor vehicle is taken as one of important sources of atmospheric pollutants, and the collection and monitoring work of the tail gas has important significance for environmental management and emission evaluation. In order to effectively collect the tail gas samples emitted by the motor vehicle, researchers and detection institutions usually need to use special waste gas collection structures to ensure the accuracy and representativeness of collected data and provide reliable basis for subsequent component analysis, pollution evaluation and policy formulation. Therefore, research and development of the motor vehicle exhaust gas collecting device with reasonable structure, high collecting efficiency and low pollution risk becomes an important research direction in the technical field of environment monitoring equipment. The existing motor vehicle waste gas collection structure mainly comprises a connecting component, an air inlet pipe, a sampling container, an exhaust pipeline and other components. In practical application, the method of inserting the air inlet end into the outlet of the exhaust pipe of the motor vehicle is generally adopted, the tail gas is guided to enter the sampling bottle or the collecting chamber through an external air pump or a fan, and then the tail gas is treated through means of condensation, filtration or sealed preservation. The structures rely on mechanical connection and negative pressure suction to complete the collection flow, emphasize the sampling speed and the universality of the device, and have certain basic practicability. However, the existing exhaust gas collecting structure still has a plurality of defects in the actual use process. For example, because the exhaust gas has high temperature characteristics and exists in the upper region of the collection container, under the condition of unsmooth exhaust or unreasonable structural design, gas retention or backflow is easy to form, so that part of the exhaust gas cannot be smoothly led out and is polluted by the substitute gas, and the purity and representativeness of the collected sample are further affected. The structural defect directly influences the accuracy of subsequent monitoring analysis, and the practicality and detection reliability of the acquisition equipment are reduced. Therefore, it is desirable to provide an improved structure that can effectively avoid exhaust pollution and improve the efficiency of exhaust gas collection. Disclosure of utility model In order to make up for the defects, the utility model provides an automobile exhaust gas collection structure, which aims to improve the problems that the traditional exhaust gas collection structure is easy to cause the collection sample to be polluted. In order to achieve the aim, the utility model adopts the following technical scheme that the motor vehicle waste gas collecting structure comprises a collecting bottle, wherein the top of the collecting bottle is in threaded connection with a top cover, the top of the top cover is provided with a first air inlet pipe and a first air outlet pipe, and a connecting component is arranged between the first air inlet pipe and the first air outlet pipe; the connecting assembly comprises a connecting plate, the inside fixed connection of connecting plate is at intake pipe one and outlet duct outer wall, connecting plate bottom fixedly connected with connecting pipe, connecting pipe outer wall fixedly connected with go-between, the inside fixedly connected with intake pipe two of top cap, the inside fixedly connected with extension pipe of top cap, connecting pipe sliding connection is inside the top cap, the draw-in groove has been seted up to the top cap inside, the go-between gomphosis mutually with the draw-in groove, the connecting pipe outer wall is provided with seal assembly, intake pipe one end fixedly connected with inlet plug, outlet duct one end is provided with the cartridge filter, the inside fixedly connected with fan of cartridge filter. As a further description of the above technical solution: The sealing assembly comprises a sealing ring, the inner wall of the sealing ring is fixedly connected with the outer wall of the connecting pipe, and the outer wall of the sealing ring is attached to the inner wall of the top cover. As a further description of the above technical solution: the top of the filter cartridge is in threaded connection with a sealing cover, and the inside of the sealing cover is fixedly connected with one end of an air outlet pipe. As a further description of the above technical solution: The filter cartridge is characterized in that a spacer ring is fixedly connected inside the filter cartridge, a fixed ring is arranged inside the filter cartridge,