Engine exhaust smoke measurement mobile device

Abstract

The application provides an engine emission smoke measurement mobile device, and relates to the technical field of engine exhaust detection, comprising a lifting assembly and a mounting assembly. The lifting assembly comprises a chassis, four telescopic rods and a transfer piece. The telescopic rods are arranged at four corners of the chassis. The transfer piece is arranged on the chassis. The chassis is hollow. The inner cavities of the telescopic rods are communicated with the chassis through the transfer piece. The mounting assembly comprises a support plate, a clamping piece and an exhaust detector body. The support plate is fixedly connected with the telescopic ends of the telescopic rods. The clamping piece is arranged on the support plate. The application uses compressed air to balance the weight of the exhaust detector body, so that the height can be easily adjusted. One transfer piece is used to control all the telescopic rods, so that one person can use the device conveniently. The low compression ratio of hydraulic oil is used to realize stable height locking.

Description

Technical Field

[0001] This application relates to the field of engine exhaust gas detection technology, and more specifically, to a mobile device for measuring engine exhaust smoke opacity. Background Technology

[0002] Existing mobile diesel engine emission smoke measurement devices lack a support structure, requiring external support during use, which is inconvenient. Furthermore, without a support structure, the exhaust emission detection device cannot be height-adjusted to accommodate different vehicle models, causing further inconvenience. Therefore, to solve this technical problem, an adjustable portable mobile diesel engine emission smoke measurement device is provided.

[0003] In response, Chinese patent application number CN202123181005.3 discloses an adjustable portable diesel engine emission smoke measurement mobile device. This solution mainly involves adjusting the support leg to a suitable height, rotating the connecting plate to drive the threaded rod to rotate, rotating the threaded rod to connect with the threaded groove, fixing the position of the support leg, and then adjusting the placement plate to a suitable height.

[0004] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems:

[0005] 1. When adjusting the height, the threaded rod is unscrewed out of the thread groove, and the entire device will lose its support. Another person is needed to support the detection device, move it to the appropriate height, and then screw the threaded rod back into the thread groove to fix it. The operation is inconvenient and laborious.

[0006] 2. Each support leg is equipped with a threaded rod, meaning that adjusting the height once requires adjusting all four threaded rods simultaneously, which requires at least two people to make the adjustment, making it very troublesome. Summary of the Invention

[0007] To overcome the shortcomings of the existing solutions, this application provides a mobile device for measuring engine emission smoke opacity, which can solve the problem of laborious and cumbersome height adjustment of the exhaust gas detection device in the above solutions.

[0008] The technical solution adopted by the embodiments of this application to solve its technical problem is: a mobile device for measuring engine emission smoke opacity, including a lifting component and a mounting component.

[0009] The lifting assembly includes a chassis, telescopic rods, and a transfer component. Four telescopic rods are provided, each located at one of the four corners of the chassis. The transfer component is mounted on the chassis, which is hollow. The inner cavities of all the telescopic rods communicate with the chassis through the transfer component. The mounting assembly includes a support plate, a clamping component, and an exhaust gas detector body. The support plate is fixedly connected to the telescopic ends of all the telescopic rods. The clamping component is mounted on the support plate, and the exhaust gas detector body is placed on the support plate and clamped and fixed by the clamping component.

[0010] In one specific implementation, the telescopic rod includes an inner tube, a piston A, and a support rod. The inner tube is fixedly connected to the chassis, the piston A is slidably connected to the inner tube, and the two ends of the support rod are fixedly connected to the piston A and the support plate, respectively.

[0011] In one specific implementation, the telescopic rod further includes an outer tube, which is fixedly connected to the support rod and is movably sleeved on the inner tube.

[0012] In one specific implementation, the transfer component includes a valve and a connecting pipe. The valve is fixedly connected to the chassis, and each inner pipe is connected to one end of the valve through a corresponding connecting pipe.

[0013] In one specific implementation, the transfer component further includes a cylinder and a piston B, the piston B being slidably connected to the inner wall of the cylinder, the cylinder being fixedly connected to the inner wall of the chassis, the other end of the valve being connected to one end of the cylinder, and the other end of the cylinder being connected to the chassis.

[0014] In one specific implementation, the chassis inner wall is uniformly distributed with fixed supports.

[0015] In one specific implementation, self-locking casters are provided at each of the four corners of the chassis.

[0016] In one specific implementation, the chassis is also provided with a valve core.

[0017] In one specific implementation, the clamping member includes a fixing plate, a push plate, and a screw. There are two fixing plates, both of which are fixedly connected to the support plate. The screw is threaded through and screwed into one of the push plates, and the screw is fixedly connected to the push plate. The push plate is slidably connected to the support plate.

[0018] The advantages of the embodiments of this application are:

[0019] 1. Because compressed air is used to counterweight the exhaust gas detector, its height can be easily adjusted for easy use.

[0020] 2. Because a single transfer unit is used to control all telescopic rods, it is convenient for single-person use and utilizes the low compression ratio of hydraulic oil to achieve stable height locking. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of the mobile device for measuring engine emission smoke opacity provided in the embodiments of this application;

[0022] Figure 2 A schematic diagram of the telescopic rod structure provided for an embodiment of this application;

[0023] Figure 3 Provided for the implementation of this application Figure 1 A magnified view of the structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram illustrating the connection relationship between the clamping member and the support plate provided in the embodiments of this application.

[0025] Explanation of key figure labels:

[0026] 100-Lifting assembly; 110-Chassis; 120-Telescopic rod; 121-Inner tube; 122-Piston A; 123-Support rod; 124-Outer tube; 130-Transfer component; 131-Valve; 132-Connecting pipe; 133-Cylinder body; 134-Piston B; 140-Support strut; 150-Valve core; 200-Mounting assembly; 210-Support plate; 220-Clamping component; 221-Fixing plate; 222-Push plate; 223-Screw; 230-Exhaust gas detector body. Detailed Implementation

[0027] The technical solution in this application embodiment aims to solve the problem of laborious and cumbersome height adjustment of the exhaust gas detection device in the above-mentioned solutions. The overall approach is as follows:

[0028] Please see Figure 1 A mobile device for measuring engine emission smoke opacity includes a lifting assembly 100 and a mounting assembly 200.

[0029] The lifting assembly 100 uses compressed air to counterweight the exhaust gas detector body 230, which can easily adjust the height. All telescopic rods 120 are controlled by a transfer unit 130, making it convenient for single-person use. Stable height locking is achieved by using the low compression ratio of hydraulic oil.

[0030] Please see Figures 1-4The lifting assembly 100 includes a chassis 110, telescopic rods 120, and a transfer component 130. Four telescopic rods 120 are provided, and all telescopic rods 120 are respectively located at the four corners of the chassis 110. The transfer component 130 is located on the chassis 110, which is hollow. The inner cavities of all telescopic rods 120 are connected to the chassis 110 through the transfer component 130. The mounting assembly 200 includes a support plate 210, a clamping component 220, and an exhaust gas detector body 230. The support plate 210 is fixedly connected to the telescopic ends of all telescopic rods 120. The clamping component 220 is located on the support plate 210, and the exhaust gas detector body 230 is placed on the support plate 210 and clamped and fixed by the clamping component 220. Here, the exhaust gas detector body 230 is first mounted on the support plate 210 via the clamping member 220. In this embodiment, the telescopic rod 120 is filled with hydraulic oil and the chassis 110 is filled with compressed air. The transfer member 130 is used to isolate the hydraulic oil and compressed air and maintain the pressure transmission between the two. The compressed air transmits thrust to the hydraulic oil, pushing the telescopic rod 120 to extend and counterweight with the mounting component 200. This allows for easy raising and lowering of the exhaust gas detector body 230 to adjust the height. After the height adjustment is complete, the transfer member 130 cuts off the pressure transmission between the hydraulic oil and compressed air. Since the compression ratio of the hydraulic oil is small, the telescopic rod 120 can maintain a stable extension length, thereby locking the height and providing stable support. It should be noted that the chassis 110 increases the overall air volume. When the telescopic rod 120 extends or retracts, the change in the overall air volume is not significant, so the pressure change of the compressed air on the hydraulic oil is also not significant. Thus, the counterweight force is almost equal throughout the entire extension stroke of the telescopic rod 120, effectively improving the feel and convenience of the extension adjustment.

[0031] Please see Figure 1 and 2 The telescopic rod 120 includes an inner tube 121, a piston A122, and a support rod 123. The inner tube 121 is fixedly connected to the chassis 110, the piston A122 is slidably connected to the inner tube 121, and the two ends of the support rod 123 are fixedly connected to the piston A122 and the support plate 210, respectively. Here, the inner tube 121 is filled with hydraulic oil, which pushes the piston A122 and lifts the support plate 210 and the structure above it through the support rod 123, acting as a counterweight and making the telescopic stroke more convenient. After the height is adjusted, the transfer component 130 cuts off the pressure transmission between the hydraulic oil and the compressed air. Because the compression ratio of the hydraulic oil is small, the telescopic rod 120 can maintain a stable telescopic length, thereby locking the height and providing stable support.

[0032] Please see Figure 1 and 2The telescopic rod 120 also includes an outer tube 124, which is fixedly connected to the support rod 123 and is movably fitted onto the inner tube 121. Here, the outer tube 124 is used to improve the structural strength of the telescopic rod 120, thereby improving the stability of the support for the mounting assembly 200.

[0033] Please see Figure 1 and 3 The transfer unit 130 includes a valve 131 and a connecting pipe 132. The valve 131 is fixedly connected to the chassis 110, and each inner pipe 121 is connected to one end of the valve 131 through a corresponding connecting pipe 132. Here, all inner pipes 121 are connected to one end of the valve 131 through the connecting pipe 132. In this way, one valve 131 can control all telescopic rods 120, which is convenient for operation. When the valve 131 is closed, the pressure transmission between hydraulic oil and compressed air is cut off, achieving a high-level locking effect.

[0034] Please see Figure 1 and 3 The transfer unit 130 also includes a cylinder 133 and a piston B134. The piston B134 is slidably connected to the inner wall of the cylinder 133, and the cylinder 133 is fixedly connected to the inner wall of the chassis 110. The other end of the valve 131 is connected to one end of the cylinder 133, and the other end of the cylinder 133 is connected to the chassis 110. Here, the piston B134 has hydraulic oil and compressed air on its two sides, which isolates the hydraulic oil and compressed air and maintains pressure transmission.

[0035] Please see Figure 1 The chassis 110 has evenly distributed and fixed support columns 140 on its inner wall. Here, the chassis 110 is filled with compressed air, and the support columns 140 are used to improve the structural strength of the chassis 110 and prevent deformation.

[0036] Please see Figure 1 The chassis 110 is equipped with self-locking casters at all four corners. These casters allow for easy movement and locking.

[0037] Please see Figure 1 The chassis 110 is also equipped with a valve core 150. Here, the compressed air pressure inside the chassis 110 is adjusted by the valve core 150 to adjust the counterweight force.

[0038] Please see Figure 1 and 4The clamping component 220 includes a fixing plate 221, a push plate 222, and a screw 223. Two fixing plates 221 are provided, both of which are fixedly connected to the support plate 210. The screw 223 is threaded through and screwed into one of the push plates 222, thus fixing the screw 223 to the push plate 222. The push plate 222 is slidably connected to the support plate 210. Here, the exhaust gas detector body 230 is placed between the push plate 222 and the fixing plate 221. Rotating the screw 223 pushes the push plate 222 to clamp the exhaust gas detector body 230, completing the fixation. In this embodiment, the push plate 222 is slidably connected to the support plate 210 via a dovetail joint, improving the stability of the push plate 222 itself.

[0039] In use: The exhaust gas detector body 230 is placed between the push plate 222 and the fixing plate 221. The screw 223 is rotated to push the push plate 222 to clamp the exhaust gas detector body 230, thus completing the fixation. In this embodiment, the telescopic rod 120 is filled with hydraulic oil, while the chassis 110 is filled with compressed air. The piston B134 is used to isolate the hydraulic oil and the compressed air and maintain the pressure transmission between the two. The compressed air transmits thrust to the hydraulic oil through the piston B134, pushing the piston A122 to move, causing the telescopic rod 120 to extend and be used to counterweight the mounting assembly 200. This allows for easy raising and lowering of the exhaust gas detector. The instrument body 230 is adjusted in height. After the height adjustment is completed, valve 131 is closed to cut off the pressure transmission between hydraulic oil and compressed air. Since the compression ratio of hydraulic oil is small, the extension length of telescopic rod 120 can be kept stable. Thus, the height is locked and stable support is provided. It should be noted that the chassis 110 has the effect of increasing the overall air volume. When telescopic rod 120 extends or retracts, the change in the overall air volume is not significant, so the pressure change of compressed air on hydraulic oil is also not significant. In this way, the counterweight force is almost equal throughout the extension stroke of telescopic rod 120, which effectively improves the feel and convenience of extension adjustment.

[0040] In summary, this application utilizes compressed air to counterweight the exhaust gas detector body 230, which allows for easy height adjustment. All telescopic rods 120 are controlled via a transfer unit 130, making it convenient for single-person use. Stable height locking is achieved by utilizing the low compression ratio of hydraulic oil.

[0041] It should be noted that the specific models and specifications of valve 131, valve core 150, screw 223 and exhaust gas detector body 230 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0042] The power supply and principle of the exhaust gas detector body 230 are clear to those skilled in the art and will not be described in detail here.

[0043] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A mobile device for measuring engine emission smoke opacity, characterized in that, include The lifting assembly includes a chassis, telescopic rods, and a transfer component. There are four telescopic rods, all of which are located at the four corners of the chassis. The transfer component is located on the chassis, which is hollow. The inner cavities of all the telescopic rods are connected to the chassis through the transfer component. The mounting assembly includes a support plate, a clamping component, and an exhaust gas detector body. The support plate is fixedly connected to the telescopic ends of all the telescopic rods. The clamping component is disposed on the support plate. The exhaust gas detector body is placed on the support plate and clamped and fixed by the clamping component. The telescopic rod includes an inner tube, a piston A, and a support rod. The inner tube is fixedly connected to the chassis, the piston A is slidably connected to the inner tube, and the two ends of the support rod are fixedly connected to the piston A and the support plate, respectively. The transfer component includes a valve and a connecting pipe. The valve is fixedly connected to the chassis. Each inner pipe is connected to one end of the valve through a corresponding connecting pipe. The transfer component also includes a cylinder and a piston B. The piston B is slidably connected to the inner wall of the cylinder. The cylinder is fixedly connected to the inner wall of the chassis. The other end of the valve is connected to one end of the cylinder, and the other end of the cylinder is connected to the chassis. The telescopic rod is filled with hydraulic oil, while the chassis is filled with compressed air. The intermediate component is used to isolate the hydraulic oil and compressed air while maintaining pressure transmission between them. The compressed air transmits thrust to the hydraulic oil, pushing the telescopic rod to extend. This extension is used to counterweight the mounting components, allowing for easy raising and lowering of the exhaust gas detector body and adjustment of the height. Once the height is adjusted, the transfer unit cuts off the pressure transmission between the hydraulic oil and the compressed air. Because the hydraulic oil has a low compression ratio, the telescopic rod's extension length remains stable, thus locking the height and providing stable support. The chassis increases the overall air volume. When the telescopic rod extends or retracts, the change in the overall air volume is not significant, so the pressure change of the compressed air on the hydraulic oil is also not significant. Thus, the counterweight force is almost constant throughout the entire extension and retraction stroke of the telescopic rod.

2. The mobile device for measuring engine emission smoke opacity as described in claim 1, characterized in that, The telescopic rod also includes an outer tube, which is fixedly connected to the support rod and is movably sleeved on the inner tube.

3. The mobile device for measuring engine emission smoke opacity as described in claim 1, characterized in that, The chassis has evenly distributed and fixed support pillars on its inner wall.

4. The mobile device for measuring engine emission smoke opacity as described in claim 3, characterized in that, The chassis is equipped with self-locking casters at all four corners.

5. The mobile device for measuring engine emission smoke opacity as described in claim 4, characterized in that, The chassis is also equipped with valve cores.

6. The mobile device for measuring engine emission smoke opacity as described in claim 5, characterized in that, The clamping component includes a fixing plate, a push plate, and a screw. There are two fixing plates, both of which are fixedly connected to the support plate. The screw is threaded through and screwed into one of the fixing plates. The screw is fixedly connected to the push plate, and the push plate is slidably connected to the support plate.

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