Vehicle-mounted tail gas emission real-time monitoring device

Abstract

The utility model belongs to the field of automobile exhaust detection, and particularly relates to a vehicle-mounted exhaust emission real-time monitoring device which comprises an exhaust pipe, a butt joint pipe, a first connecting ring, a sealing gasket, a first fixing bolt, a second connecting ring and the like. The exhaust pipe is a tail gas pipe of an automobile and serves as an installation carrier of the detection device, a butt joint pipe is installed at an exhaust port of the exhaust pipe in a butt joint mode, two first connecting rings are symmetrically arranged at a pipe opening of the butt joint end of the exhaust pipe, the first connecting rings are semicircular, and bolt through openings are formed in the upper side and the lower side of each first connecting ring. The sealing gasket is arranged between the exhaust pipe and the butt joint pipe, the sealing piece is arranged on the butt joint face of the first connecting ring and the second connecting ring, two defensive lines are formed, the sealing performance and the fastening performance of the connecting portion are greatly improved, the sensor module is directly communicated with the butt joint pipe through a pipeline, and the sealing performance of the butt joint pipe is greatly improved. It is ensured that the collected tail gas sample is undiluted or polluted real exhaust gas, and therefore the accuracy of the monitoring result is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automobile exhaust emission detection, and in particular relates to an on-board exhaust emission real-time monitoring device. Background Technology

[0002] Pollutants emitted by motor vehicles, such as carbon monoxide (CO), nitrogen oxides (NOx), and particulate matter (PM), not only affect air quality but also pose a serious threat to human health.

[0003] Traditional exhaust emission testing methods mostly rely on static testing stations, requiring vehicles to be tested at designated locations periodically. However, this method cannot reflect the vehicle's emissions under actual driving conditions, nor can it promptly detect and address excessive emissions. It may not accurately reflect the vehicle's true emissions during daily driving, thus missing the opportunity to promptly detect and resolve potential emission problems. Therefore, we propose an on-board exhaust emission real-time monitoring device to solve the above problems. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, a vehicle-mounted exhaust emission real-time monitoring device is provided.

[0005] The technical solution of this utility model is: a vehicle-mounted exhaust emission real-time monitoring device, comprising an exhaust pipe, a connecting pipe, a first connecting ring, a sealing gasket, a first fixing bolt, a second connecting ring, a second fixing bolt, and a sensor module. The exhaust pipe is the exhaust pipe of a car and serves as the mounting carrier for this detection device. A connecting pipe is installed at the exhaust port of the exhaust pipe. Two first connecting rings are symmetrically arranged at the connecting end of the exhaust pipe. The first connecting ring is semi-circular and has bolt openings on both the upper and lower sides. The first connecting ring is fixed by tightening the first fixing bolt through the bolt openings. A sealing sleeve is fitted on the outer wall of the connecting end of the exhaust pipe. A sealing gasket is provided, located between the first connecting ring and the exhaust pipe. The sealing gasket is used to improve the tightness and sealing between the first connecting ring and the exhaust pipe. A second connecting ring is welded to the docking end of the connecting pipe. The outer rings of the first and second connecting rings are respectively provided with through holes for matching the second fixing bolt. The exhaust pipe and the connecting pipe are docked and fixed by the second fixing bolts on the first and second connecting rings, respectively. A sensor module is provided on the connecting pipe, and the sensor module is connected to the connecting pipe through a pipe. The sensor module is used to monitor and collect the exhaust gas composition passing through the connecting pipe in real time.

[0006] Furthermore, a groove is provided on the mating surface between the first connecting ring and the second connecting ring, and a sealing sheet is provided in the groove of the first connecting ring and the second connecting ring. The sealing sheet is an annular sheet with a vent in the middle. The sealing sheet is used to improve the sealing performance of the mating of the first connecting ring and the second connecting ring.

[0007] Furthermore, both the sealing gasket and the sealing sheet are made of high-temperature and corrosion-resistant materials. Both the sealing gasket and the sealing sheet have a certain compression recovery capability. The sealing gasket and the sealing sheet can be appropriately compressed to fill the gap, and at the same time, they can quickly return to their original shape after the external force is removed, ensuring a continuous and effective sealing effect.

[0008] Furthermore, it also includes an exhaust mesh plate. An exhaust mesh plate for discharging exhaust gas is installed at the air outlet of the connecting pipe. The exhaust mesh plate is used to block the air outlet of the connecting pipe to prevent foreign objects from entering the connecting pipe.

[0009] Furthermore, it also includes a protective mesh frame and a mounting bracket. The mounting bracket is installed on the outer wall of the connecting pipe, and the protective mesh frame is provided on the mounting bracket. The mounting bracket is supported at the bottom of the sensor module, and the protective mesh frame is located on the periphery of the sensor module. The protective mesh frame is used to protect the sensor module.

[0010] Furthermore, the mounting bracket is detachably installed on the outer wall of the connecting pipe by bolts. The side of the protective mesh frame near the exhaust pipe is an opening, through which the sensor module can be easily installed and removed, improving the flexibility of the sensor module and facilitating the maintenance of the sensor module and the protective mesh frame.

[0011] This utility model has the following advantages:

[0012] 1. This utility model uses a sealing gasket between the exhaust pipe and the connecting pipe, and sets a sealing sheet on the mating surface of the connecting ring one and the connecting ring two, forming two lines of defense, which greatly improves the sealing and tightness of the connection. Furthermore, by using a sensor module directly connected to the connecting pipe through a pipeline, it ensures that the collected exhaust gas sample is the real exhaust gas that is not diluted or contaminated, thereby improving the accuracy of the monitoring results.

[0013] 2. This utility model adopts a detachable mounting bracket and protective mesh frame, which not only facilitates the installation and disassembly of the sensor module, but also simplifies subsequent maintenance work. In particular, the sensor module can be easily installed and removed from the opening of the protective mesh frame, improving operational flexibility.

[0014] 3. The protective mesh frame equipped with this utility model not only provides physical protection for the sensor module to prevent external impact or foreign objects from entering, but also has a good ventilation and heat dissipation effect, which helps to extend the service life of the equipment. The exhaust mesh plate installed at the air outlet of the connecting pipe can prevent foreign objects from entering the interior of the connecting pipe, keep the system clean, and reduce the possibility of failure. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the exhaust pipe, connecting ring 1, and sealing sheet of this utility model.

[0017] Figure 3 This is a schematic diagram of the exhaust pipe, connecting ring 1, sealing gasket and fixing bolt 1 of this utility model.

[0018] Figure 4 This is a schematic diagram of the connecting ring 2, sensor module, exhaust mesh plate and protective mesh frame of this utility model.

[0019] Wherein: 1-exhaust pipe, 101-connecting pipe, 2-connecting ring one, 3-sealing gasket, 4-fixing bolt one, 5-sealing sheet, 6-connecting ring two, 7-fixing bolt two, 8-sensor module, 9-exhaust mesh plate, 10-protective mesh frame, 11-mounting bracket. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0021] A vehicle-mounted real-time exhaust emission monitoring device, such as Figures 1-4 As shown, the device includes an exhaust pipe 1, a connecting pipe 101, a connecting ring 101, a sealing gasket 3, a fixing bolt 101, a connecting ring 201, a fixing bolt 201, and a sensor module 8. The exhaust pipe 1 is the exhaust pipe of a car and serves as the mounting carrier for this detection device. The connecting pipe 101 is installed at the exhaust port of the exhaust pipe 1. Two connecting rings 101 are symmetrically arranged at the connecting end of the exhaust pipe 1. The connecting rings 101 are semi-circular and have bolt openings on both the upper and lower sides. The connecting rings 101 are fixed by tightening the fixing bolts 101 through the bolt openings. A sealing gasket 3 is provided on the outer wall of the connecting end of the exhaust pipe 1. The sealing gasket 3 is located on the connecting ring. Between the connecting ring 1 and the exhaust pipe 1, the sealing gasket 3 is used to improve the tightness and sealing between the connecting ring 1 and the exhaust pipe 1. The connecting ring 2 6 is welded to the pipe opening at the docking end of the connecting pipe 101. The outer rings of the connecting ring 1 and the connecting ring 2 6 are respectively provided with through holes for matching fixing bolts 2 7. The exhaust pipe 1 and the connecting pipe 101 are docked and fixed through the fixing bolts 2 7 on the connecting ring 1 and the connecting ring 2 6, respectively. A sensor module 8 is provided on the connecting pipe 101. The sensor module 8 is connected to the connecting pipe 101 through a pipe. The sensor module 8 is used to monitor and collect the exhaust gas components passing through the connecting pipe 101 in real time.

[0022] like Figure 2 and Figure 3 As shown, a groove is provided on the mating surface between connecting ring 2 and connecting ring 6. A sealing sheet 5 is provided in the groove of connecting ring 2 and connecting ring 6. The sealing sheet 5 is an annular sheet with a vent in the middle. The sealing sheet 5 is used to improve the sealing performance of the mating of connecting ring 2 and connecting ring 6.

[0023] like Figures 1-3 As shown, both the sealing gasket 3 and the sealing sheet 5 are made of high-temperature and corrosion-resistant materials. Both the sealing gasket 3 and the sealing sheet 5 have a certain compression recovery capability. The sealing gasket 3 and the sealing sheet 5 can be appropriately compressed to fill the gap, and at the same time, they can quickly return to their original shape after the external force is removed, ensuring a continuous and effective sealing effect.

[0024] like Figure 4 As shown, it also includes an exhaust mesh plate 9. An exhaust mesh plate 9 for discharging exhaust gas is installed at the air outlet of the connecting pipe 101. The exhaust mesh plate 9 is used to block the air outlet of the connecting pipe 101 to prevent foreign objects from entering the connecting pipe 101.

[0025] like Figure 1 and Figure 4 As shown, it also includes a protective mesh frame 10 and a mounting bracket 11. The mounting bracket 11 is installed on the outer wall of the connecting pipe 101, and the protective mesh frame 10 is provided on the mounting bracket 11. The mounting bracket 11 is supported at the bottom of the sensor module 8, and the protective mesh frame 10 is set on the periphery of the sensor module 8. The protective mesh frame 10 is used to protect the sensor module 8. The mounting bracket 11 is detachably installed on the outer wall of the connecting pipe 101 by bolts. The side of the protective mesh frame 10 near the exhaust pipe 1 is an opening, and the sensor module 8 can be easily installed and removed from the protective mesh frame 10 through this opening, which improves the flexibility of the sensor module 8 and facilitates the maintenance of the sensor module 8 and the protective mesh frame 10.

[0026] When using this monitoring device, it is connected to the original exhaust pipe 1 of the car through a specially designed connecting pipe 101. The connection between the connecting pipe 101 and the exhaust pipe 1 is achieved by assembling two semi-circular connecting rings 1-2 and then mating them with connecting ring 2-6. The two connecting rings 1-2 are symmetrically arranged at the mating end of the exhaust pipe 1 and tightened with fixing bolts 1-4 to ensure a tight connection. To enhance sealing and tightness, a sealing gasket 3 is also provided between the exhaust pipe 1 and the connecting rings 1-2. It not only improves the sealing effect of the connection but also accommodates minor deformations caused by thermal expansion and contraction. When the connecting rings 1-2 and 2-6 are aligned, the sealing performance of the mating surfaces of the two components is improved by the sealing plate 5. The sensor module 8 is the core component of the entire system, which can monitor and collect data in real time after the connection. The exhaust gas composition emitted from pipe 101 and the data acquired by sensor module 8 can be transmitted in real time to the on-board computer or external monitoring platform, providing timely and accurate emission information for drivers or regulatory agencies. To protect sensor module 8 from external environmental influences, a mounting bracket 11 with a protective mesh frame 10 is installed on the outer wall of pipe 101. The protective mesh frame 10 surrounds sensor module 8, providing physical protection without affecting its normal operation. In addition, mounting bracket 11 adopts a bolt-removable design, allowing sensor module 8 to be easily installed and removed from one side of protective mesh frame 10, greatly improving maintenance convenience and flexibility. Finally, an exhaust mesh plate 9 is installed at the exhaust port of pipe 101, which effectively prevents foreign objects from entering the interior of pipe 101, ensuring the long-term stable operation of the device.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A real-time monitoring device for vehicle exhaust emission, comprising an exhaust pipe (1) which is the exhaust pipe of a vehicle and serves as the mounting carrier of the device, characterized in that, It also includes the docking pipe (101), the connecting ring one (2), the sealing gasket (3), the fixed bolt one (4), the connecting ring two (6), the fixed bolt two (7) and the sensor module (8), the exhaust pipe (1) is docked and installed at the exhaust port of the docking pipe (101), the exhaust pipe (1) is symmetrically provided with two connecting ring one (2) at the docking end pipe orifice, the connecting ring one (2) is semicircular and the upper and lower sides are provided with bolt through holes, the connecting ring one (2) is fixed by tightening the fixed bolt one (4) at the bolt through hole, the exhaust pipe (1) is sealingly provided with a sealing gasket (3) on the outer wall of the docking end pipe, the sealing gasket (3) is located between the connecting ring one (2) and the exhaust pipe (1), the connecting ring two (6) is welded at the docking end pipe orifice of the docking pipe (101), the connecting ring one (2) and the connecting ring two (6) are provided with through holes corresponding to the fixed bolt two (7) on the docking outer ring, the exhaust pipe (1) and the docking pipe (101) are respectively connected and fixed by the fixed bolt two (7) on the connecting ring one (2) and the connecting ring two (6), the docking pipe (101) is provided with a sensor module (8), the sensor module (8) is connected to the docking pipe (101) through a pipeline, and the sensor module (8) is used for real-time monitoring and collecting exhaust components through the docking pipe (101).

2. The real-time monitoring device for vehicle exhaust emission according to claim 1, characterized in that, The connecting ring one (2) and the connecting ring two (6) are provided with grooves on the docking surface, and the connecting ring one (2) and the connecting ring two (6) are provided with sealing pieces (5) in the grooves, the sealing pieces (5) are annular pieces and have air vents in the middle.

3. The real-time monitoring device for vehicle exhaust emission according to claim 2, characterized in that, The sealing gasket (3) and the sealing piece (5) are made of high-temperature-resistant and corrosion-resistant materials, and the sealing gasket (3) and the sealing piece (5) have certain compression recovery capacity.

4. The real-time monitoring device for vehicle exhaust emission according to claim 3, characterized in that, It also includes an exhaust screen (9), and the docking pipe (101) is provided with an exhaust screen (9) for discharging exhaust gas.

5. The real-time monitoring device for vehicle exhaust emission according to claim 4, characterized in that, It also includes a protective screen frame (10) and a mounting bracket (11), the mounting bracket (11) is installed on the outer wall of the docking pipe (101), the protective screen frame (10) is provided on the mounting bracket (11), the mounting bracket (11) is supported on the bottom of the sensor module (8), and the protective screen frame (10) is provided on the periphery of the sensor module (8).

6. The real-time monitoring device for vehicle exhaust emission according to claim 5, characterized in that, The mounting bracket (11) is detachably mounted on the outer wall of the docking pipe (101) by bolts, one side of the protective screen frame (10) close to the exhaust pipe (1) is a through hole, and the sensor module (8) can be conveniently disassembled and assembled from the through hole of the protective screen frame (10).

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