A tail gas detection device for motorcycle processing

Abstract

This utility model relates to an exhaust gas testing device for motorcycle manufacturing, comprising an exhaust gas detector, a sealing and fitting mechanism for connecting the exhaust gas detector to a motorcycle exhaust pipe, and a catalytic converter connected to the exhaust gas detector. The sealing and fitting mechanism includes an air supply pipe fixedly connected to the exhaust gas detector, a thicker pipe fixedly disposed at the other end of the air supply pipe, an elastic sealing sleeve fixedly disposed on the thicker pipe, a locking sleeve fitted over the elastic sealing sleeve, and an axial locking assembly disposed on the thicker pipe. Using this exhaust gas testing device, stepless adjustment and fitting of exhaust pipes of different specifications can be achieved through the use of a conical elastic sealing sleeve in conjunction with an axially movable locking sleeve.

Description

Technical Field

[0001] This utility model relates to the technical field of motorcycle exhaust gas testing equipment, specifically to an exhaust gas testing device used in motorcycle manufacturing. Background Technology

[0002] In the field of motorcycle exhaust emission testing, accurate exhaust emission data is crucial for assessing motorcycle environmental performance and controlling air pollution. Currently, motorcycle exhaust emission testing equipment typically uses fixed-specification connecting parts or sealing devices when connecting to motorcycle exhaust pipes. When faced with motorcycles of different displacements and exhaust pipe diameters, these fixed-specification parts are often difficult to adapt, requiring frequent replacement of different-specification connecting parts, which is cumbersome and inefficient. Even some equipment employs adjustable sealing structures, which suffer from poor sealing performance, allowing outside air to easily enter the exhaust emission testing channel, leading to distorted test data that fails to accurately reflect the motorcycle's exhaust emissions. This paper proposes an exhaust emission testing device for motorcycle manufacturing to address these issues. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] To address the technical problems mentioned in the background section above, some embodiments of this application provide an exhaust gas detection device for motorcycle manufacturing, including an exhaust gas detector, a sealing adapter mechanism for connecting the exhaust gas detector to the motorcycle exhaust pipe, and a catalytic converter mechanism connected to the exhaust gas detector. The sealing adapter mechanism includes an air supply pipe fixedly connected to the exhaust gas detector, a thick pipe fixedly disposed at the other end of the air supply pipe, an elastic sealing sleeve fixedly disposed on the thick pipe, a locking sleeve sleeved outside the elastic sealing sleeve, and an axial locking assembly disposed on the thick pipe.

[0005] Specifically, the elastic sealing sleeve is in the shape of a conical cylinder; the smaller end of the elastic sealing sleeve is fixedly connected to the thicker pipe.

[0006] Specifically, the inner wall of the locking sleeve is provided with an inner conical surface.

[0007] Specifically, the taper of the inner conical surface is consistent with the taper of the elastic sealing sleeve.

[0008] Specifically, the axial locking assembly includes an external thread on the outer wall of the thick pipe and an internal thread on the inner wall of the locking sleeve that mates with the external thread.

[0009] Specifically, the large-diameter end of the elastic sealing sleeve is provided with a lip.

[0010] Specifically, the catalytic mechanism includes a catalytic chamber connected to the exhaust gas detector, an exhaust pipe fixed on the catalytic chamber, a return pipe with its two ends connected to the exhaust pipe and the gas transmission pipe respectively, a first valve located at the connection between the exhaust pipe and the return pipe, and a second valve located at the connection between the gas transmission pipe and the return pipe.

[0011] The beneficial effects of this utility model are: (1) By using a conical cylindrical elastic sealing sleeve in conjunction with an axially movable locking sleeve, stepless adjustment and adaptation of exhaust pipes of different specifications of motorcycles can be achieved. Whether it is a small-displacement thin pipe or a large-displacement thick pipe, simply rotate the locking sleeve and use its engagement with the external and internal threads of the thick pipe to make the locking sleeve move axially. The inner conical surface radially compresses the elastic sealing sleeve, which can make it fit tightly against the outer wall of the exhaust pipe. There is no need to replace parts, which greatly improves the convenience and efficiency of the testing operation.

[0012] (2) The radial uniform extrusion force generated by the axial locking assembly driving the locking sleeve can fully deform the elastic sealing sleeve and completely fill the gap between it and the outer wall of the motorcycle exhaust pipe, forming an airtight annular sealing strip. This effectively prevents outside air from entering the detection channel, avoids deviations in detection data caused by air mixing, ensures the authenticity and accuracy of monitoring data, and provides a reliable basis for motorcycle exhaust emission assessment. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0014] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0015] In the attached diagram: Figure 1 This is a structural diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 for Figure 2 AA-line sectional view; Figure 4 This is an exploded view of the present invention. Detailed Implementation

[0016] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0017] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0018] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0019] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0020] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Reference Figures 1-4 As shown, the exhaust gas testing device for motorcycle processing according to this utility model includes an exhaust gas detector 1, a sealing adapter mechanism 2 for connecting the exhaust gas detector 1 to the motorcycle exhaust pipe, and a catalytic mechanism 3 connected to the exhaust gas detector 1. The sealing adapter mechanism 2 includes an air supply pipe 21 fixedly connected to the exhaust gas detector 1, a thick pipe 22 fixedly disposed at the other end of the air supply pipe 21, an elastic sealing sleeve 23 fixedly disposed on the thick pipe 22, a locking sleeve 24 sleeved outside the elastic sealing sleeve 23, and an axial locking assembly 25 disposed on the thick pipe 22.

[0022] Specifically, the elastic sealing sleeve 23 is in the shape of a conical cylinder; the smaller end of the elastic sealing sleeve 23 is fixedly connected to the thicker pipe 22.

[0023] Specifically, the inner wall of the locking sleeve 24 is provided with an inner conical surface 241.

[0024] Specifically, the taper of the inner conical surface 241 is consistent with the taper of the elastic sealing sleeve 23.

[0025] Specifically, the axial locking assembly includes an external thread 251 on the outer wall of the thick tube 22 and an internal thread 252 on the inner wall of the locking sleeve 24 that mates with the external thread 251.

[0026] When testing motorcycle exhaust, the elastic sealing sleeve 23 is fitted onto the motorcycle exhaust pipe, and then the locking sleeve 24 is rotated so that it gradually approaches the large-diameter end of the elastic sealing sleeve 23. The inner conical surface 241 of the locking sleeve 24 radially compresses the elastic sealing sleeve 23, forcing the large-diameter end of the elastic sealing sleeve 23 to radially contract and deform, thereby tightly fitting against the outer wall of the motorcycle exhaust pipe to form a seal. Using this exhaust gas detection equipment, the conical shape of the elastic sealing sleeve 23, in conjunction with the axially movable locking sleeve 24, allows for stepless adjustment. Whether it's a small-displacement, thin pipe or a large-displacement, thick pipe, the locking sleeve 24 ensures a tight fit of the elastic sealing sleeve 23 without requiring component replacement. The axial movement of the locking sleeve 24 is facilitated by the engagement of the external thread 251 and the internal thread 252, making it convenient and quick to use. The radially uniform compressive force generated by the axial locking assembly driving the locking sleeve 24 causes the elastic sealing sleeve 23 to deform, completely adjusting to the gap between it and the outer wall of the motorcycle exhaust pipe, forming a well-sealed annular seal that effectively prevents outside air from entering, ensuring the authenticity and accuracy of the monitoring data. Another function of the elastic sealing sleeve 23 is to prevent exhaust gas leakage, improve the working environment for testing personnel, and protect the health and safety of staff. Specifically, the large-diameter end of the elastic sealing sleeve 23 is provided with a lip 231.

[0027] The design of the lip 231 further improves the sealing performance of the elastic sealing sleeve 23.

[0028] Specifically, the catalytic mechanism 3 includes a catalytic box 31 connected to the exhaust gas detector 1, an exhaust pipe 32 fixed on the catalytic box 31, a return pipe 33 with its two ends connected to the exhaust pipe 32 and the gas transmission pipe 21 respectively, a first valve 34 located at the connection between the exhaust pipe 32 and the return pipe 33, and a second valve 35 located at the connection between the gas transmission pipe 21 and the return pipe 33.

[0029] The exhaust gas that has been tested cannot be directly emitted. After being catalyzed by the catalytic converter 31, the first valve 34 and the second valve 35 are turned to connect the return pipe 33 with the emission pipe 32 and the gas supply pipe 21. The catalyzed exhaust gas then enters the exhaust gas detector 1 again through the return pipe 33. After the test is qualified and meets the environmental protection requirements, it is discharged through the emission pipe 32.

[0030] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A tail gas detection device for motorcycle processing, comprising a tail gas detector (1), a sealing fitting mechanism (2) for connecting the tail gas detector (1) and the exhaust pipe of the motorcycle, and a catalytic mechanism (3) in communication with the tail gas detector (1), characterized in that: The sealing adapter mechanism (2) includes a gas supply pipe (21) fixedly connected to the exhaust gas detector (1), a thick pipe (22) fixedly disposed at the other end of the gas supply pipe (21), an elastic sealing sleeve (23) fixedly disposed on the thick pipe (22), a locking sleeve (24) sleeved outside the elastic sealing sleeve (23), and an axial locking assembly (25) disposed on the thick pipe (22).

2. An exhaust gas detection device for motorcycle processing according to claim 1, characterized in that: The elastic sealing sleeve (23) is in the shape of a conical cylinder; the smaller end of the elastic sealing sleeve (23) is fixedly connected to the thicker pipe (22).

3. An exhaust gas detection device for motorcycle processing according to claim 2, characterized in that: The inner wall of the locking sleeve (24) is provided with an inner conical surface (241).

4. An exhaust gas detection device for motorcycle processing according to claim 3, characterized in that: The taper of the inner conical surface (241) is consistent with the taper of the elastic sealing sleeve (23).

5. An exhaust gas detection device for motorcycle processing as claimed in claim 4, wherein: The axial locking assembly includes an external thread (251) on the outer wall of the thick tube (22) and an internal thread (252) on the inner wall of the locking sleeve (24) that mates with the external thread (251).

6. An exhaust detection device for motorcycle machining according to claim 1, characterized in that: The large-diameter end of the elastic sealing sleeve (23) is provided with a lip (231).

7. An exhaust detection device for motorcycle machining according to claim 1, characterized in that: The catalytic mechanism (3) includes a catalytic box (31) connected to the exhaust gas detector (1), an exhaust pipe (32) fixed on the catalytic box (31), a return pipe (33) with its two ends connected to the exhaust pipe (32) and the gas transmission pipe (21) respectively, a first valve (34) located at the connection between the exhaust pipe (32) and the return pipe (33), and a second valve (35) located at the connection between the gas transmission pipe (21) and the return pipe (33).

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