Transmission type smokemeter for motor vehicle exhaust

Abstract

The utility model discloses a transmission type smoke meter for motor vehicle exhaust detection relates to motor vehicle detection technical field, including bottom plate and smoke meter body, the one side fixed mounting of bottom plate top has universal adjusting soft arm, one end fixed mounting of universal adjusting soft arm has L type connecting plate, the top fixed mounting of L type connecting plate has fixed frame, the utility model's beneficial effects are: through the setting of universal adjusting soft arm can according to different motor vehicle exhaust pipe height height of fixed frame and probe is adjusted at will, through the characteristic of universal adjusting soft arm can adjust the position of probe more convenient and fast through the setting of pull rod, mutual card board and spring, can when detecting through the mutual card board of pulling down pull rod and make down, subsequently will probe insert exhaust pipe inside again loosen pull rod, can make spring rebound to mutual card board with probe fixed in exhaust pipe inside, avoid the situation of blowing out when detecting probe appears.

Description

Technical Field

[0001] This utility model relates to the field of motor vehicle testing technology, specifically to a transmission smoke meter for motor vehicle exhaust gas testing. Background Technology

[0002] A smoke meter is an instrument used to measure the smoke content in automobile exhaust. Transmission smoke meters work on the principle of light attenuation. A beam of light is blocked by particles in the exhaust gas. The intensity of the beam is inversely proportional to its length. The degree of light absorption by the exhaust gas is used to determine the degree of pollution of the exhaust gas to the environment. Currently, transmission smoke meters detect exhaust gas by inserting a probe into the automobile exhaust pipe for sampling.

[0003] According to the transmission smoke meter for motor vehicle inspection with application number 202120640091.0, the automatic lifting and lowering of the support plate is achieved through the cooperation of servo motor, pulley and belt, so that the position of the smoke meter can be adjusted in time without the need to repeatedly build the pad, thus improving the detection efficiency of the smoke meter.

[0004] However, although the aforementioned transmission smoke meter for motor vehicle testing can adjust the height of the smoke meter to match the height of the vehicle's exhaust pipe by rotating the belt and pulley driven by the servo motor, it cannot quickly and accurately adjust the smoke meter to the height that matches the exhaust pipe. Furthermore, it can only adjust the height of the smoke meter. If there is a deviation between the position of the smoke meter and the vehicle's exhaust pipe during use, it is still necessary to adjust the position of the support base and the exhaust pipe using rollers, thus still resulting in inconvenience in adjustment. Therefore, we propose a transmission smoke meter for motor vehicle exhaust gas testing. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a transmission smoke meter for detecting motor vehicle exhaust emissions, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a transmission smoke meter for detecting motor vehicle exhaust emissions, comprising a base plate and a smoke meter body. A universal adjusting arm is fixedly installed on one side of the top of the base plate. An L-shaped connecting plate is fixedly installed at one end of the universal adjusting arm. A fixing frame is fixedly installed on the top of the L-shaped connecting plate. A fixing groove is provided inside the fixing frame. A locking bolt is threaded inside the top of the fixing frame. A pull rod is slidably installed inside the bottom of the L-shaped connecting plate. A locking plate is fixedly installed at one end of the pull rod. A spring is installed on the outside of the pull rod.

[0007] Furthermore, a mounting bracket is fixedly installed on the top of the base plate, and a positioning groove is provided on the top of the mounting bracket. The smoke meter body cooperates with the positioning groove. A fixing bracket is fixedly installed on one side of the top of the mounting bracket. A screw is installed on the internal thread of the top of the fixing bracket. A fixing plate is rotatably installed on one end of the screw. The fixing plate cooperates with the smoke meter body. A throttle handle is fixedly installed on the other end of the screw.

[0008] Furthermore, a flexible tube is connected to one side of the smoke meter body, and a probe is inserted into one end of the flexible tube. The probe is engaged with the fixing groove, and the locking bolt is engaged with the probe.

[0009] Furthermore, two first limiting rods are fixedly installed at the bottom of the interlocking plates, and the first limiting rods are slidably connected to the L-shaped connecting plate.

[0010] Furthermore, two second limiting rods are fixedly installed on the top of the fixing plate, and the second limiting rods are slidably connected to the fixing frame.

[0011] Furthermore, the bottom of the base plate is provided with casters, and one side of the top of the base plate is provided with a push-pull handle.

[0012] This utility model provides a transmission smoke meter for detecting motor vehicle exhaust emissions, which has the following beneficial effects: This transmission smoke meter for motor vehicle exhaust emission testing features a universal adjustable arm that allows for easy adjustment of the mounting frame and probe height to accommodate different exhaust pipe heights. The adjustable arm also facilitates convenient and quick probe positioning. The system incorporates a pull rod, interlocking plates, and springs. During testing, pulling down the pull rod lowers the interlocking plates, inserts the probe into the exhaust pipe, and releasing the pull rod causes the spring to return, securing the probe inside the exhaust pipe and preventing it from being blown out during testing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention.

[0014] In the diagram: 1. Base plate; 2. Smoke meter body; 3. Universal adjustable flexible arm; 4. L-shaped connecting plate; 5. Fixing frame; 6. Fixing groove; 7. Locking bolt; 8. Pull rod; 9. Interlocking plate; 10. Spring; 11. Flexible hose; 12. Probe; 13. First limit rod; 14. Mounting bracket; 15. Positioning groove; 16. Fixing bracket; 17. Screw; 18. Fixing plate; 19. Rotary handle; 20. Second limit rod; 21. Push-pull handle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Please see Figures 1 to 3 This utility model provides a technical solution: a transmission smoke meter for detecting motor vehicle exhaust emissions, including a base plate 1 and a smoke meter body 2. A universal adjusting arm 3 is fixedly installed on one side of the top of the base plate 1. An L-shaped connecting plate 4 is fixedly installed at one end of the universal adjusting arm 3. A fixing frame 5 is fixedly installed on the top of the L-shaped connecting plate 4. A fixing groove 6 is opened inside the fixing frame 5. A locking bolt 7 is installed on the internal thread of the top of the fixing frame 5. A pull rod 8 is slidably installed inside the bottom of the L-shaped connecting plate 4. A mutual locking plate 9 is fixedly installed at one end of the pull rod 8. A spring 10 is installed on the outside of the pull rod 8. By passing the probe 12 through the inside of the fixing groove 6 and rotating the locking bolt 7, the probe 12 is pressed and fixed in the fixing groove 6 through the thread, thus completing the fixation of the probe 12. This facilitates the installation and removal of the probe 12. The spring force of the spring 10 pushes the mutual locking plate 9 upward, allowing the probe 12 to be inserted into the exhaust pipe and the mutual locking plate 9 to press against the lower end of the exhaust pipe, thereby fixing the probe 12 inside the exhaust pipe.

[0017] A mounting bracket 14 is fixedly installed on the top of the base plate 1. A positioning groove 15 is provided on the top of the mounting bracket 14. The smoke meter body 2 cooperates with the positioning groove 15. A fixing bracket 16 is fixedly installed on one side of the top of the mounting bracket 14. A screw 17 is installed on the internal thread of the top of the fixing bracket 16. A fixing plate 18 is rotatably installed on one end of the screw 17. The fixing plate 18 cooperates with the smoke meter body 2. A throttle 19 is fixedly installed on the other end of the screw 17. The positioning groove 15 facilitates the positioning of the smoke meter body 2 on the mounting bracket 14. When fixing the smoke meter body 2, the screw 17 is rotated by the throttle 19 so that it moves with the fixing bracket 16 through the thread, which drives the fixing plate 18 to move downward. The fixing plate 18 can then press and fix the smoke meter body 2 in the positioning groove 15, which facilitates the installation and removal of the smoke meter body 2.

[0018] A flexible tube 11 is connected to one side of the smoke meter body 2. A probe 12 is inserted into one end of the flexible tube 11. The probe 12 is engaged with the fixing groove 6, and the locking bolt 7 is engaged with the probe 12. The flexible tube 11 can be inserted into one side of the smoke meter body 2, and the probe 12 is inserted into the other end of the flexible tube 11. Thus, the exhaust gas of the motor vehicle to be tested is introduced into the smoke meter body 2 through the flexible tube 11 for testing.

[0019] Two first limiting rods 13 are fixedly installed at the bottom of the mutual locking plate 9. The first limiting rods 13 are slidably connected to the L-shaped connecting plate 4. By setting the first limiting rods 13, when the pulling rod 8 moves the mutual locking plate 9 downward, the first limiting rods 13 can guide and limit the mutual locking plate 9 to ensure that the angle of the mutual locking plate 9 will not change.

[0020] Two second limiting rods 20 are fixedly installed on the top of the fixed plate 18. The second limiting rods 20 are slidably connected to the fixed frame 16. When the fixed plate 18 is moved up and down by the screw 17, the second limiting rods 20 are slidably connected to the fixed frame 16 to guide the fixed plate 18 and prevent the fixed plate 18 from rotating together with the screw 17, which would cause the position of the fixed plate 18 to change and affect the fixation of the smoke meter body 2.

[0021] The bottom of the base plate 1 is equipped with casters, and a push-pull handle 21 is provided on one side of the top of the base plate 1. The casters and push-pull handle 21 facilitate the movement of the base plate 1 and the smoke meter body 2 to the rear of the vehicle to be tested for exhaust gas detection.

[0022] In summary, when using this transmission-type smoke meter for motor vehicle exhaust emission testing, first place the smoke meter body 2 inside the positioning groove 15. Then, rotate the screw 17 by the throttle 19 to connect it with the fixing bracket 16 via threads, causing the fixing plate 18 to move downwards. The fixing plate 18 then presses and fixes the smoke meter body 2 in the positioning groove 15. Next, connect the hose 11 to the inlet end of the smoke meter body 2, and insert the probe 12 into one end of the hose 11. Then, pass the probe 12 through the inside of the fixing groove 6, and finally rotate the locking bolt 7 to connect it via threads. The probe 12 is pressed and fixed in the fixing groove 6 by one end of the locking bolt 7, thus completing the fixation of the probe 12. Then, the base plate 1 and the smoke meter body 2 are moved to the rear of the vehicle to be tested by the moving wheels and the push-pull handle 21. Then, the position and height of the universal adjustment soft arm 3 are adjusted according to the height of the vehicle exhaust pipe. The mutual locking plate 9 is moved down by pulling down the pull rod 8. Then, the probe 12 is inserted into the exhaust pipe. After releasing the pull rod 8, the spring 10 will rebound, and the mutual locking plate 9 will fix the probe 12 in the exhaust pipe, thus allowing the vehicle exhaust gas to be detected.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A transmission smoke meter for detecting motor vehicle exhaust emissions, comprising a base plate (1) and a smoke meter body (2), characterized in that: A universal adjusting flexible arm (3) is fixedly installed on one side of the top of the base plate (1). An L-shaped connecting plate (4) is fixedly installed at one end of the universal adjusting flexible arm (3). A fixed frame (5) is fixedly installed on the top of the L-shaped connecting plate (4). A fixed groove (6) is opened inside the fixed frame (5). A locking bolt (7) is installed on the internal thread of the top of the fixed frame (5). A pull rod (8) is slidably installed inside the bottom of the L-shaped connecting plate (4). A mutual locking plate (9) is fixedly installed at one end of the pull rod (8). A spring (10) is installed on the outside of the pull rod (8).

2. The transmission smoke meter for detecting motor vehicle exhaust emissions according to claim 1, characterized in that: A mounting bracket (14) is fixedly installed on the top of the base plate (1). A positioning groove (15) is provided on the top of the mounting bracket (14). The smoke meter body (2) cooperates with the positioning groove (15). A fixing bracket (16) is fixedly installed on one side of the top of the mounting bracket (14). A screw (17) is installed on the internal thread of the top of the fixing bracket (16). A fixing plate (18) is rotatably installed on one end of the screw (17). The fixing plate (18) cooperates with the smoke meter body (2). A throttle (19) is fixedly installed on the other end of the screw (17).

3. The transmission smoke meter for detecting motor vehicle exhaust emissions according to claim 1, characterized in that: A flexible tube (11) is connected to one side of the smoke meter body (2), and a probe (12) is inserted into one end of the flexible tube (11). The probe (12) is engaged with the fixing groove (6), and the locking bolt (7) is engaged with the probe (12).

4. The transmission smoke meter for detecting motor vehicle exhaust emissions according to claim 1, characterized in that: Two first limiting rods (13) are fixedly installed at the bottom of the mutual locking plate (9), and the first limiting rods (13) are slidably connected to the L-shaped connecting plate (4).

5. The transmission smoke meter for detecting motor vehicle exhaust emissions according to claim 2, characterized in that: Two second limiting rods (20) are fixedly installed on the top of the fixed plate (18), and the second limiting rods (20) are slidably connected to the fixed frame (16).

6. The transmission smoke meter for detecting motor vehicle exhaust emissions according to claim 1, characterized in that: The bottom of the base plate (1) is provided with a movable wheel, and a push-pull handle (21) is provided on one side of the top of the base plate (1).

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