Automobile exhaust emission detection device
By designing a combined structure of a fixed frame, a rotating ring, and a rubber ball, the problem of the single interface of existing exhaust emission detection devices on unconventional exhaust pipes is solved, achieving a stable connection and efficient detection, and ensuring the stability and accuracy of the detection.
Patent Information
- Application Number
- CN202520025922.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing exhaust emission testing devices have a single interface structure when dealing with unconventional exhaust pipes, making the devices unusable and affecting the stability and accuracy of the tests.
A device comprising a detector and a probe was designed. Through a combination structure of a fixed frame, a rotating ring, a clamping plate, and a rubber ball, a stable connection to different exhaust pipes is achieved. A filter screen is also provided to block particulate matter and ensure detection accuracy.
It achieves a stable connection for exhaust pipes of different diameters, improves the stability of testing and the reliability of data, and extends the service life of the equipment through convenient disassembly and cleaning.
Smart Images
Figure CN223841862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile exhaust emission detection technology, and in particular to an automobile exhaust emission detection device. Background Technology
[0002] As a vital means of transportation in modern society, automobiles facilitate human travel and logistics, but their exhaust emissions also contribute to environmental pollution. Automobile exhaust often contains pollutants such as carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC), and particulate matter. These components contribute to air pollution, harm human health, and exacerbate the greenhouse effect. Therefore, to reduce the environmental impact of automobile exhaust, various countries have successively established stringent emission standards, requiring regular testing of vehicle exhaust emissions. Exhaust emission testing devices are crucial equipment for performing these tests, accurately monitoring the pollutant content in vehicle emissions to ensure compliance with environmental standards and promote sustainable development.
[0003] Currently, most widely used exhaust emission testing devices on the market employ technologies such as gas sensors, optical analyzers, or portable measuring instruments. These devices detect pollutant concentrations by collecting and analyzing the composition of vehicle exhaust. These devices generally possess data acquisition, real-time analysis, and result display capabilities, meeting most testing needs and suitable for scenarios such as automobile manufacturing plants, repair shops, and environmental testing stations. Furthermore, these devices often support standardized interfaces, facilitating integration with emission control systems for comprehensive vehicle management and optimization. However, due to their overly simplistic interface structures, these devices cannot be used when testing vehicles with unconventional exhaust pipes. Therefore, this paper proposes a new vehicle exhaust emission testing device to address these issues. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an automotive exhaust emission testing device, which aims to improve the problem that the interface structure of the existing technology is too simple, and the device cannot be used when testing some cars with unconventional exhaust pipes.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A vehicle exhaust emission testing device includes a detector and a probe. The probe is connected to the detector via a wire. A fixing frame is provided on the side of the probe away from the detector. A connecting plate is fixedly connected to the side wall of the fixing frame. A fixing mechanism is provided inside the fixing frame. A disassembly mechanism is provided between the connecting plate and the probe on one side.
[0007] The fixing mechanism includes a rotating ring rotatably connected inside a fixing frame. An arc-shaped groove is formed through the interior of the rotating ring. A guide rod is fixedly connected inside the fixing frame and slidably connected inside the arc-shaped groove. A rotating frame is rotatably connected inside the rotating ring, and a clamping plate is slidably connected inside the rotating frame. The clamping plate is rotatably connected to the side wall of the guide rod. An anti-slip groove is formed inside the rotating ring. A bracket is fixedly connected to the side wall of the fixing frame. A rotating plate is rotatably connected between the brackets. A spring is fixedly connected between the fixing frame and the rotating plate. A locking plate is fixedly connected to the bottom of the side wall of the rotating plate.
[0008] As a further description of the above technical solution:
[0009] The disassembly mechanism includes a splicing ring one and a splicing ring two. The splicing ring one is fixedly connected to one side wall of the connecting plate, and the splicing ring two is fixedly connected to the probe side wall away from the detector.
[0010] As a further description of the above technical solution:
[0011] Both the first and second side walls of the splicing ring are fixedly connected with retaining rings, and both the first and second side walls of the splicing ring are fixedly connected with retaining claws.
[0012] As a further description of the above technical solution:
[0013] The claws and clasps are staggered;
[0014] As a further description of the above technical solution:
[0015] The second splicing ring has a groove inside, and a filter screen is provided inside the second splicing ring;
[0016] As a further description of the above technical solution:
[0017] The filter screen sidewall is slidably connected inside the groove;
[0018] As a further description of the above technical solution:
[0019] The clamp is equipped with a rubber ball to prevent the clamp from directly contacting the exhaust pipe.
[0020] As a further description of the above technical solution:
[0021] The locking plate engages with the anti-slip groove to lock the position of the rotating ring.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, when using the equipment to monitor vehicle exhaust emissions, the rubber ball is pressed tightly against the exhaust pipe by rotating the rotating ring, fixing the equipment position. The rotating ring is then locked by a spring and a clamping plate to ensure a stable connection. This method allows the equipment to be used with exhaust pipes of varying diameters while ensuring a stable connection between the equipment and the exhaust pipe during monitoring, thus improving data reliability and equipment stability.
[0024] 2. In this utility model, a filter screen needs to be passed through the exhaust gas contact probe. The filter screen effectively blocks particulate matter, ensuring detection accuracy. After detection, the probe separation splicing ring is rotated to remove the filter screen and clean the blocked particles, achieving the effect of convenient maintenance and cleaning, and facilitating the subsequent use of the equipment. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of an automobile exhaust emission detection device proposed in this utility model.
[0026] Figure 2 This is a schematic diagram of the structure of the fixing frame of the automobile exhaust emission detection device proposed in this utility model;
[0027] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0028] Figure 4 This utility model presents a schematic diagram of the fixing mechanism of an automobile exhaust emission detection device.
[0029] Legend:
[0030] 1. Detector; 2. Probe; 3. Wire; 4. Fixing frame; 5. Rotating ring; 6. Arc groove; 7. Guide rod; 8. Rotating frame; 9. Clamping plate; 10. Rubber ball; 11. Anti-slip groove; 12. Bracket; 13. Rotating plate; 14. Spring; 15. Clamping plate; 16. Connecting plate; 17. Splicing ring one; 18. Splicing ring two; 19. Clamping ring; 20. Clamping claw; 21. Filter screen; 22. Groove. 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 Figures 1-3This utility model provides an embodiment of an automobile exhaust emission detection device, comprising a detector 1 and a probe 2. The probe 2 is connected to the detector 1 via a wire 3. A fixing frame 4 is provided on the side of the probe 2 away from the detector 1. A connecting plate 16 is fixedly connected to the side wall of the fixing frame 4. A fixing mechanism is provided inside the fixing frame 4. A disassembly mechanism is provided between the connecting plate 16 and the probe 2 on one side. The fixing mechanism includes a rotating ring 5, which is rotatably connected inside the fixing frame 4. An arc-shaped groove 6 is formed through the rotating ring 5. A guide rod 7 is fixedly connected inside the fixing frame 4 and is slidably connected to the probe 2. Inside the arc groove 6, a rotating frame 8 is rotatably connected to the inside of the rotating ring 5, and a clamping plate 9 is slidably connected inside the rotating frame 8. The clamping plate 9 is rotatably connected to the side wall of the guide rod 7. An anti-slip groove 11 is opened inside the rotating ring 5. A bracket 12 is fixedly connected to the side wall of the fixed frame 4. A rotating plate 13 is rotatably connected between the brackets 12. A spring 14 is fixedly connected between the fixed frame 4 and the rotating plate 13. A locking plate 15 is fixedly connected to the bottom of the side wall of the rotating plate 13. A rubber ball 10 is set inside the clamping plate 9 to prevent the clamping plate 9 from directly contacting the exhaust pipe. The locking plate 15 engages with the anti-slip groove 11 to lock the position of the rotating ring 5.
[0033] When using this device to test vehicle exhaust emissions, the fixing frame 4 is first placed around the outside of the vehicle exhaust pipe. This step ensures that the device can be stably installed around the exhaust pipe. Next, the rotating ring 5 is rotated to move the rotating frame 8. At the same time, due to the restriction of the clamping plate 9, the movement of the rotating frame 8 will guide the clamping plate 9 to deflect to a certain extent, so that the clamping plate 9 gradually approaches and presses against the vehicle exhaust pipe. During this process, when the clamping plate 9 is completely pressed against the exhaust pipe, the rubber ball 10 can press against the outer wall of the exhaust pipe, which not only plays a role in shock absorption and sealing, but also further consolidates the stability of the fixing frame 4, ensuring that the position of the device does not shift during the monitoring process. Meanwhile, during the rotation of the rotating ring 5, the rotating plate 13 is repeatedly pushed up. When the rotating ring 5 stops rotating, the spring 14, due to the loss of pressure, quickly resets the rotating plate 13, making it lock inside the anti-slip groove 11, and finally locks the position of the rotating ring 5. The above methods not only ensure the stability and durability of the equipment installation, but also avoid displacement problems caused by vibration or external forces, effectively improving the firmness of the connection between the equipment and the exhaust pipe and the accuracy of the monitoring data, thus providing a more reliable guarantee for the monitoring of vehicle exhaust emissions.
[0034] Reference Figure 4The disassembly mechanism includes a first splicing ring 17 and a second splicing ring 18. The first splicing ring 17 is fixedly connected to the side wall of the connecting plate 16 on one side, and the second splicing ring 18 is fixedly connected to the side wall of the probe 2 away from the detector 1. Both the first splicing ring 17 and the second splicing ring 18 are fixedly connected to the side walls with retaining rings 19. Both the first splicing ring 17 and the second splicing ring 18 are fixedly connected to the side walls with claws 20. The claws 20 and retaining rings 19 are staggered. The second splicing ring 18 has a groove 22 inside, and a filter screen 21 is provided inside the second splicing ring 18. The side wall of the filter screen 21 is slidably connected inside the groove 22.
[0035] During the exhaust gas detection process, the exhaust gas first contacts the probe 2 through the fixed frame 4. The probe 2 has a built-in sensor, and the detection results are transmitted to the detector 1 via the wire 3. The detector 1 can display the monitoring data of the exhaust gas in real time. The above method is an existing technology and will not be elaborated further here. Before the exhaust gas contacts the probe 2, it must pass through the filter screen 21. The filter screen 21 is made of high-efficiency particulate filter material, which can effectively block particulate matter entrained in the exhaust gas and avoid particulate contamination affecting the detection accuracy of the probe 2. After the detection is completed, by twisting the probe 2, the splicing ring 2 18 can be rotated, thereby causing the retaining ring 19 and retaining claw 20 on the splicing ring 2 18 to disengage from the corresponding retaining ring 19 and retaining claw 20 on the splicing ring 1 17, realizing the rapid separation of the probe 2 from the fixed frame 4. This flexible connection structure ensures the efficiency and convenience of operation. Subsequently, the operator can easily remove the filter screen 21 from the inside of the splicing ring 2 18 to clean the particulate matter accumulated during the filtration process. The cleaning process is simple and does not damage the equipment structure, which greatly extends the service life of filter 21 and ensures the smooth progress of subsequent testing.
[0036] Working principle: When using this device to detect the exhaust gas emitted by a car, firstly, the fixing frame 4 is placed on the outside of the car's exhaust pipe. Then, the rotating ring 5 is rotated. When the rotating ring 5 rotates, it will drive the rotating frame 8 to move. As the rotating frame 8 moves with the rotating ring 5, it will deflect under the restriction of the clamping plate 9, and drive the clamping plate 9 to deflect, so that the clamping plate 9 gradually approaches the car's exhaust pipe. Finally, the rubber ball 10 is pressed tightly against the car's exhaust pipe, thereby fixing the fixing frame 4 to the exhaust pipe. When the rotating ring 5 rotates, it will repeatedly push the rotating plate 13 upward. When the rotating ring 5 stops rotating, the spring 14 loses pressure and drives the rotating plate 13 to reset, thereby locking the clamping plate 15 inside the anti-slip groove 11, thus locking the position of the rotating ring 5 and ensuring the stability of the connection between the device and the exhaust pipe during monitoring.
[0037] The vehicle exhaust gas will contact the probe 2 through the fixed frame 4. The probe 2 will transfer the monitoring results to the detector 1 through the wire 3. The detection result can be obtained by checking the value displayed on the detector 1. Before contacting the probe 2, the exhaust gas will pass through the filter screen 21. The filter screen 21 will block the particles carried in the exhaust gas to prevent them from affecting the detection structure. After the detection work is completed, the probe 2 is twisted to drive the splicing ring 18 to rotate, so that the retaining ring 19 and retaining claw 20 on the splicing ring 18 are separated from the retaining ring 19 and retaining claw 20 on the splicing ring 17 and are in contact and engaged state, thereby completing the separation of the probe 2 from the fixed frame 4. At this time, the filter screen 21 is removed from the inside of the splicing ring 18 to clean the blocked particles, which is convenient for subsequent use of the equipment.
[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 vehicle exhaust emission detection device, comprising a detector (1) and a probe (2), characterized in that: The probe (2) is connected to the detector (1) via a wire (3). A fixed frame (4) is provided on the side of the probe (2) away from the detector (1). A connecting plate (16) is fixedly connected to the side wall of the fixed frame (4). A fixing mechanism is provided inside the fixed frame (4). A disassembly mechanism is provided between the connecting plate (16) and the probe (2) on one side. The fixing mechanism includes a rotating ring (5), which is rotatably connected inside the fixing frame (4). An arc-shaped groove (6) is provided through the rotating ring (5). A guide rod (7) is fixedly connected inside the fixing frame (4). The guide rod (7) is slidably connected inside the arc-shaped groove (6). A rotating frame (8) is rotatably connected inside the rotating ring (5). A clamping plate (9) is slidably connected inside the rotating frame (8). The clamping plate (9) is rotatably connected to the side wall of the guide rod (7). An anti-slip groove (11) is provided inside the rotating ring (5). A bracket (12) is fixedly connected to the side wall of the fixing frame (4). A rotating plate (13) is rotatably connected between the brackets (12). A spring (14) is fixedly connected between the fixing frame (4) and the rotating plate (13). A clamping plate (15) is fixedly connected to the bottom of the side wall of the rotating plate (13).
2. The vehicle exhaust emission detection device according to claim 1, characterized in that: The disassembly mechanism includes a first splicing ring (17) and a second splicing ring (18). The first splicing ring (17) is fixedly connected to the side wall of the connecting plate (16) on one side, and the second splicing ring (18) is fixedly connected to the side wall of the probe (2) away from the detector (1).
3. The vehicle exhaust emission detection device according to claim 2, characterized in that: Both splicing ring one (17) and splicing ring two (18) are fixedly connected to the side walls with retaining rings (19), and both splicing ring one (17) and splicing ring two (18) are fixedly connected to retaining claws (20).
4. The vehicle exhaust emission detection device according to claim 3, characterized in that: The claws (20) and the rings (19) are staggered.
5. The vehicle exhaust emission detection device according to claim 3, characterized in that: The splicing ring 2 (18) has a groove (22) inside and a filter screen (21) inside.
6. The vehicle exhaust emission detection device according to claim 5, characterized in that: The sidewall of the filter (21) is slidably connected inside the groove (22).
7. The vehicle exhaust emission detection device according to claim 1, characterized in that: The clamp (9) is provided with a rubber ball (10) inside to prevent the clamp (9) from directly contacting the exhaust pipe.
8. The vehicle exhaust emission detection device according to claim 1, characterized in that: The card plate (15) engages with the anti-slip groove (11) to lock the position of the rotating ring (5).