A rapid detection device for exhaust emission of a motor vehicle

Abstract

The utility model relates to motor vehicle exhaust detection technical field discloses a motor vehicle exhaust emission rapid detection device, including support disc, the front side fixed connection of support disc has support column no.

Description

Technical Field

[0001] This utility model relates to the field of motor vehicle exhaust emission detection technology, and in particular to a rapid motor vehicle exhaust emission detection device. Background Technology

[0002] A rapid detection device for motor vehicle exhaust emissions is a portable or stationary device that uses sensors, spectral analysis, and other technologies to quickly collect data on the concentrations of pollutants such as carbon monoxide, hydrocarbons, nitrogen oxides, and particulate matter in motor vehicle exhaust, and compares this data with emission standards to determine whether exhaust emissions meet the standards. The reason for this detection is that motor vehicle exhaust contains a large number of harmful substances. Detection can force motor vehicles to maintain reasonable emission levels, encourage automakers to optimize engine technology, promote the application of clean energy, and control pollutant emissions at the source. This is of crucial significance for improving air quality and achieving low-carbon and environmentally friendly goals.

[0003] A rapid detection device for motor vehicle exhaust emissions typically consists of a sampling and analysis unit, a data processing module, and auxiliary components. The sampling unit is responsible for extracting exhaust gas from the motor vehicle's exhaust pipe. The analysis unit is the core component, containing various sensors or analytical instruments, as well as a light scattering device for measuring particulate matter concentration, which can quantitatively analyze the pollutant components in the exhaust gas. The data processing module can receive the signals output by the detection unit and convert them into specific pollutant concentration data. The auxiliary components include a power supply, a display screen, and a communication interface.

[0004] In existing technologies, when a motor vehicle is running, the exhaust pipe will vibrate due to various reasons such as unstable engine operation, airflow pulsation, aging and damage, muffler failure, loose connection parts or resonance. These vibrations are transmitted to the testing device, making it difficult for the testing device to be stably maintained in the testing position. The continuous and irregular vibration of the exhaust pipe can easily cause the testing device to detach from the exhaust pipe or be displaced, thus making it impossible to continuously and accurately collect exhaust gas samples. This seriously affects the reliability and integrity of the test results and reduces the efficiency of the testing work, causing great inconvenience to the motor vehicle exhaust emission testing work. Therefore, a rapid testing device for motor vehicle exhaust emissions is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rapid detection device for motor vehicle exhaust emissions, which aims to improve the problem in the prior art where the vibration of the exhaust pipe makes it difficult for the detection device to be stably maintained in the detection position, thus leading to deviations in the detection data.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rapid detection device for motor vehicle exhaust emissions includes a support plate. A support column is fixedly connected to the front side of the support plate. A motor is slidably connected to the inner wall of the support column. A gear is fixedly connected to the drive end of the motor. A rack is fixedly connected to the inner wall of the support column. A limit block is rotatably connected to the rear side of the gear. A connecting rod is fixedly connected to the top of the limit block. A sliding ring is fixedly connected to the top of the connecting rod. Multiple connecting seats are fixedly connected to the outer wall of the sliding ring. A connecting arm is rotatably connected to the outer wall of the connecting arm. A connecting seat is rotatably connected to the right side of the connecting arm. A fixing baffle is fixedly connected to the outer wall of the connecting seat. Multiple connecting seats are fixedly connected to the outer wall of the support plate. A limit rod is fixedly connected to the inner wall of the support column. A shock-absorbing component for centering and damping the detection device is provided on the front side of the support column.

[0008] As a further description of the above technical solution:

[0009] The shock absorption assembly includes a second support column, the right side of which is fixedly connected to the left side of the first support column. A slide rail is fixedly connected to the inner wall of the second support column, and a sliding block is slidably connected to the outer wall of the slide rail. Two fixed plates are fixedly connected to the outer wall of the sliding block. A rotating seat is fixedly connected to the top of the fixed plate. A rotating arm is rotatably connected to the outer wall of the rotating seat, and a rotating arm is rotatably connected to the top of the rotating arm.

[0010] As a further description of the above technical solution:

[0011] The outer side of the gear is meshed with the outer side of the rack, and the inner wall of the sliding ring is slidably connected to the outer wall of the support column.

[0012] As a further description of the above technical solution:

[0013] The right side of the fixed baffle is rotatably connected to the outer wall of the connecting seat three, and the inner wall of the limiting block is slidably connected to the outer wall of the limiting rod.

[0014] As a further description of the above technical solution:

[0015] The top end of the second rotating arm is rotatably connected to the second rotating seat, and the top end of the second rotating seat is fixedly connected to the support block.

[0016] As a further description of the above technical solution:

[0017] The outer walls of both support blocks are fixedly connected to the inner wall of the second support column, and a damper is fixedly connected to the bottom end of each support block.

[0018] As a further description of the above technical solution:

[0019] The bottom end of the damper is fixedly connected to the top end of the fixed plate, and a spring is sleeved on the outside of the damper;

[0020] As a further description of the above technical solution:

[0021] The top end of the spring is fixedly connected to the bottom end of the support block, and the bottom end of the spring is fixedly connected to the top end of the fixing plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the sliding ring moves along the outer wall of the support column through the meshing transmission of the gear and rack driven by the motor. Through the linkage mechanism formed by the connecting arm and the fixed baffle, the exhaust pipe is adaptively internally supported and clamped. This structure can automatically adjust the clamping force according to the diameter of the exhaust pipe. Through the stable fulcrum formed by the fixed baffle and the connecting seat, the detection device is firmly fixed in the exhaust pipe. This effectively improves the problem of the device falling off due to exhaust pipe vibration in the prior art, ensures the stability of the sampling position during the detection process, avoids the deviation of detection data caused by device displacement, and improves the reliability of the detection results.

[0024] 2. In this utility model, a linkage damping mechanism composed of a slide rail, a rotating arm, a damper, and a spring is used. When the detection device is displaced by vibration, the rotating arm buffers the vibration energy through angle changes. The spring and damper work together to absorb the vibration impact through elastic deformation and provide restoring force, so that the sliding block slides along the slide rail and drives the device to automatically reset. This structure can offset the vertical vibration displacement of the exhaust pipe in real time, ensuring that the detection device always maintains the centered detection position, effectively reducing the impact of vibration on detection accuracy, improving the problem of detection interruption caused by vibration in the prior art, and improving the efficiency and stability of detection work. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a rapid detection device for motor vehicle exhaust emissions proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a support column of a rapid detection device for motor vehicle exhaust emissions proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the support column two of the rapid detection device for motor vehicle exhaust emissions proposed in this utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Support plate; 2. Support column one; 3. Motor; 4. Gear; 5. Rack; 6. Limiting block; 7. Connecting rod; 8. Sliding ring; 9. Connecting seat one; 10. Connecting arm; 11. Connecting seat two; 12. Fixed baffle; 13. Connecting seat three; 14. Limiting rod; 15. Support column two; 16. Slide rail; 17. Sliding block; 18. Fixed plate; 19. Rotating seat one; 20. Rotating arm one; 21. Rotating arm two; 22. Rotating seat two; 23. Support block; 24. Damper; 25. Spring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a rapid vehicle exhaust emission testing device, comprising a support plate 1, a support column 2 fixedly connected to the front side of the support plate 1, the support column 2 serving as the basic support structure of the device and providing support for the internal support assembly. The internal support structure prevents the testing device from accidentally detaching from the exhaust pipe. A motor 3 is slidably connected to the inner wall of the support column 2, and the motor 3 can slide back and forth on the inner wall of the support column 2 to facilitate position adjustment according to testing requirements. A gear 4 is fixedly connected to the drive end of the motor 3, and the motor 3 drives the gear 4 to rotate, which serves as a subsequent fixing baffle. 12 provides power during internal support operation. A rack 5 is fixedly connected to the inner wall of the support column 2. The gear 4 meshes with the rack 5. The rotation of the motor 3 is converted into linear motion through the transmission of the gear 4 and rack 5. A limit block 6 is rotatably connected to the rear side of the gear 4. The limit block 6 will not rotate with the gear 4. At the same time, the limit block 6 will prevent the gear 4 from slipping during the movement, providing the movement stability of the gear 4. A connecting rod 7 is fixedly connected to the top of the limit block 6. The connecting rod 7 connects the limit block 6 to the sliding ring 8, transmitting the reciprocating motion of the gear 4 to the sliding ring 8.

[0033] A sliding ring 8 is fixedly connected to the top of the connecting rod 7. The sliding ring 8 can slide along the outer wall of the support column 2, causing multiple connecting seats 9 connected to its outer wall to move together. Multiple connecting seats 9 are fixedly connected to the outer wall of the sliding ring 8. The connecting seats 9 are used to install the connecting arm 10 and provide a fulcrum for rotation. The connecting arm 10 is rotatably connected to the outer wall of the connecting seat 9. The connecting arm 10 can rotate around the connecting seat 9. The angle of the fixed baffle 12 can be adjusted through the linkage mechanism. A connecting seat 2 11 is rotatably connected to the right side of the connecting arm 10. The connecting seat 2 11 is fixed on the fixed baffle 12 and forms a rotatable connection with the connecting arm 10, realizing the angle change of the fixed baffle 12 and finally realizing the internal support structure. The fixed baffle 12 is fixedly connected to the outer wall of the connecting seat 2 11. The fixed baffle 12 is used to fix the detection device and the exhaust pipe to ensure the stability of the detection position. Multiple connecting seats 3 13 are fixedly connected to the outer wall of the support plate 1. The connecting seats 3 13 provide a fulcrum for rotation at the other end of the fixed baffle 12, forming a stable internal support structure. The inner wall of the support column 2 is fixedly connected to... Limiting rod 14 passes through limiting block 6, restricting the movement trajectory of limiting block 6 and ensuring that gear 4 moves in a straight line. A damping component is provided on the front side of support column 2 to centrally dampen the detection device. The damping component reduces the impact of exhaust pipe vibration on the detection device, ensuring detection accuracy. The outer surface of gear 4 is meshed with the outer surface of rack 5. Through the meshing transmission of gear 4 and rack 5, the conversion of motor 3 rotation to linear motion is realized, driving sliding ring 8 to reciprocate left and right. The inner surface of sliding ring 8... The wall is slidably connected to the outer wall of the support column 12. The sliding ring 8 slides along the outer wall of the support column 12 to ensure the smooth movement of the connecting arm 10 and the fixed baffle 12. The right side of the fixed baffle 12 is rotatably connected to the outer wall of the connecting seat 33. The fixed baffle 12 can rotate around the connecting seat 33 to cooperate with the connecting arm 10 to achieve internal support for the exhaust pipe. The inner wall of the limiting block 6 is slidably connected to the outer wall of the limiting rod 14. The limiting rod 14 restricts the movement direction of the limiting block 6, so that the gear 4 can only slide along the direction of the limiting rod 14 to ensure stable transmission.

[0034] Reference Figure 3 and Figure 4The damping assembly includes a second support column 15, whose right side is fixedly connected to the left side of a first support column 2, providing a supporting foundation for the damping structure, forming an integral structure, and enhancing stability. A slide rail 16 is fixedly connected to the inner wall of the second support column 15, providing a sliding track for a sliding block 17, allowing it to move longitudinally within the second support column 15. A sliding block 17 is slidably connected to the outer wall of the slide rail 16, driving two fixed plates 18 to move together to accommodate damping displacement. Two fixed plates 18 are fixedly connected to the outer wall of the sliding block 17, and these fixed plates 18 are used to mount a rotating seat. Rotating seat 19 provides a connection base for rotating arm 20. The top of fixed plate 18 is fixedly connected to rotating seat 19, which provides a fulcrum for rotating arm 20, allowing it to rotate around rotating seat 19. Rotating arm 20 is rotatably connected to the outer wall of rotating seat 19. Rotating arm 20 is connected to fixed plate 18 through rotating seat 19 and can rotate during vibration to absorb some vibration energy. Rotating arm 21 is rotatably connected to the top of rotating arm 20. Rotating arm 20 and rotating arm 21 are rotatably connected to form a linkage mechanism, which buffers vibration through angle changes.

[0035] Rotating arm 21 is rotatably connected to a rotating seat 22, which is fixed to a support block 23, providing a fulcrum for rotation and ensuring stable operation of the linkage mechanism. The top of rotating seat 22 is fixedly connected to a support block 23, which is fixed to the inner wall of support column 15, providing mounting support points for damper 24 and spring 25. The outer walls of both support blocks 23 are fixedly connected to the inner wall of support column 15, ensuring the reliability of the damping structure. The bottom of support block 23 is fixedly connected to a damper 24, which connects to the support block 23 and the fixed plate 18. The damper dissipates vibration energy and reduces vibration transmission through damping. The bottom end of the damper 24 is fixedly connected to the top end of the fixed plate 18. The two ends of the damper 24 are respectively connected to the support block 23 and the fixed plate 18. When vibration occurs, it generates damping force to suppress vibration. A spring 25 is sleeved on the outside of the damper 24. The spring 25 is sleeved on the outside of the damper 24 and works in conjunction with the damper 24 to provide elastic restoring force and assist in shock absorption. The top end of the spring 25 is fixedly connected to the bottom end of the support block 23. The bottom end of the spring 25 is connected to the fixed plate 18. When vibration occurs, it undergoes elastic deformation to absorb and release energy. The bottom end of the spring 25 is fixedly connected to the top end of the fixed plate 18. The two ends of the spring 25 are respectively fixed to the support block 23 and the fixed plate 18. Through elastic deformation, it buffers vibration and keeps the detection device in a centered position.

[0036] Working principle: When motor 3 rotates clockwise, the gear 4 at its drive end meshes with the rack 5 on the inner wall of support column 2, driving gear 4 to move to the right along rack 5. The limiting block 6 on the rear side of gear 4 is constrained by the limiting rod 14 and slides to the right synchronously with gear 4. Through the connecting rod 7, it pushes the sliding ring 8 to move to the right on the outer wall of support column 2. The connecting seat 9 on the outer wall of the sliding ring 8 drives the connecting arm 10 to rotate counterclockwise around its rotation fulcrum. The other end of the connecting arm 10, through the connecting seat 2 11, causes the fixed baffle 12 to tilt clockwise around the connecting seat 3 13, thereby clamping the exhaust pipe outward and realizing the internal support operation. Conversely, if motor 3 rotates counterclockwise, gear 4 moves to the left, driving the limiting block 6, connecting rod 7 and sliding ring 8 to reset to the left. The connecting arm 10 rotates clockwise, and the fixed baffle 12 tilts counterclockwise to release the exhaust pipe. Finally, it can be removed and internally supported according to the detection requirements. The internal support structure can prevent the detection device from accidentally detaching from the exhaust pipe.

[0037] When the detection device is vibrated and shifts upward, the sliding block 17 slides upward along the slide rail 16 on the inner wall of the second support column 15, causing the fixed plate 18 and the rotating seat 19 to move upward. This causes the rotating arm 20 to tilt counterclockwise around the rotating seat 19, while the rotating arm 21 tilts clockwise around the rotating seat 22. The rotating arm 20 and the rotating arm 21 work together to achieve shock absorption and support. At this time, the spring 25 at the bottom of the support block 23 is compressed, the damper 24 consumes the vibration energy, and the elastic potential energy accumulated by the spring 25 is released downward, pushing the fixed plate 18 and the sliding block 17 to slide down, thus resetting the detection device. Conversely, if the detection device shifts downward, the sliding block 17 slides down along the slide rail 16, the rotating arm 20 tilts clockwise, and the rotating arm 21 tilts counterclockwise. The spring 25 is stretched and releases its elastic force upward. Combined with the buffering effect of the damper 24, the detection device returns to its original position. Through the linkage between the spring 25 and the damper 24, the vibration displacement is continuously offset, ensuring the stability of the detection position.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 rapid detection device for motor vehicle exhaust emissions, comprising a support plate (1), characterized in that: A support column (2) is fixedly connected to the front side of the support plate (1). A motor (3) is slidably connected to the inner wall of the support column (2). A gear (4) is fixedly connected to the drive end of the motor (3). A rack (5) is fixedly connected to the inner wall of the support column (2). A limit block (6) is rotatably connected to the rear side of the gear (4). A connecting rod (7) is fixedly connected to the top of the limit block (6). A sliding ring (8) is fixedly connected to the top of the connecting rod (7). The outer wall of the sliding ring (8) is fixedly connected to... There are multiple connecting seats 1 (9), the outer wall of the connecting seat 1 (9) is rotatably connected to a connecting arm (10), the right side of the connecting arm (10) is rotatably connected to a connecting seat 2 (11), the outer wall of the connecting seat 2 (11) is fixedly connected to a fixed baffle (12), the outer wall of the support plate (1) is fixedly connected to multiple connecting seats 3 (13), the inner wall of the support column 1 (2) is fixedly connected to a limit rod (14), and the front side of the support column 1 (2) is provided with a shock-absorbing component for centering and damping the detection device.

2. The rapid detection device for motor vehicle exhaust emissions according to claim 1, characterized in that: The shock absorption assembly includes a second support column (15), the right side of which is fixedly connected to the left side of the first support column (2). The inner wall of the second support column (15) is fixedly connected to a slide rail (16), the outer wall of which is slidably connected to a sliding block (17). The outer wall of the sliding block (17) is fixedly connected to two fixing plates (18), the top of which is fixedly connected to a rotating seat (19), the outer wall of which is rotatably connected to a rotating arm (20), and the top of which is rotatably connected to a rotating arm (21).

3. The rapid detection device for motor vehicle exhaust emissions according to claim 1, characterized in that: The outer side of the gear (4) is meshed with the outer side of the rack (5), and the inner wall of the sliding ring (8) is slidably connected to the outer wall of the support column (2).

4. The rapid detection device for motor vehicle exhaust emissions according to claim 1, characterized in that: The right side of the fixed baffle (12) is rotatably connected to the outer wall of the connecting seat three (13), and the inner wall of the limiting block (6) is slidably connected to the outer wall of the limiting rod (14).

5. The rapid detection device for motor vehicle exhaust emissions according to claim 2, characterized in that: The top end of the rotating arm two (21) is rotatably connected to the rotating seat two (22), and the top end of the rotating seat two (22) is fixedly connected to the support block (23).

6. The rapid detection device for motor vehicle exhaust emissions according to claim 5, characterized in that: The outer walls of the two support blocks (23) are fixedly connected to the inner wall of the second support column (15), and a damper (24) is fixedly connected to the bottom end of the support block (23).

7. The rapid detection device for motor vehicle exhaust emissions according to claim 6, characterized in that: The bottom end of the damper (24) is fixedly connected to the top end of the fixed plate (18), and a spring (25) is sleeved on the outside of the damper (24).

8. The rapid detection device for motor vehicle exhaust emissions according to claim 7, characterized in that: The top end of the spring (25) is fixedly connected to the bottom end of the support block (23), and the bottom end of the spring (25) is fixedly connected to the top end of the fixing plate (18).

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