Tail gas pipe hard connection structure for RDE test
The exhaust pipe rigid connection structure designed with stainless steel pipes and corrugated pipes solves the problems of rubber pipe contamination and metal pipe welding damage, and achieves efficient and accurate connection in RDE tests of different vehicle models, improving test efficiency and the reliability of results.
Patent Information
- Application Number
- CN202520373964.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-03-05
AI Technical Summary
In existing automotive RDE testing, rubber hose connections cause exhaust gas pollution, affecting test results, while metal hose welding connections damage the original condition of the vehicle and are inconvenient to connect, affecting test efficiency.
The exhaust pipe features a rigid connection structure made of stainless steel pipe and stainless steel corrugated pipe. It achieves sealing through connection units and tin foil tape, adapting to exhaust pipes of different vehicle models. Clamps are used for fastening to improve sealing.
It achieves a connection that does not affect test results and efficiency in RDE tests of different vehicle models, improves the flexibility and sealing of the connection, is applicable to a variety of vehicle models, and ensures the accuracy of test results.
Smart Images
Figure CN223579244U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of automobile RDE test, concretely, the utility model relates to a tail gas pipe hard connection structure for RDE test. BACKGROUND
[0002] The automobile RDE (Real Driving Emission) test is actual driving pollutant emission test, is mainly used for monitoring the emission level of vehicle in actual driving process, and the implementation of the automobile RDE test puts forward higher requirements to the automobile production enterprise, promotes the automobile production enterprise to pay more attention to the optimization and improvement of engine technology and tail gas treatment technology in the vehicle research and development, production process, to ensure that the emission of vehicle in actual driving meets the environmental protection standard. In the automobile RDE test, the rubber pipe is usually used to connect the automobile exhaust pipe and the test device, but the use of rubber pipe can cause secondary pollution to the tail gas composition, affect the test result, or the chuck and the automobile exhaust pipe are connected through the metal pipe welding, but the vehicle needs to be modified, the original state of the vehicle is damaged, the connection is not convenient, and the test efficiency is affected.
[0003] To solve the above problems, the patent document with publication number 207513674U discloses a connecting pipe for automobile tail gas purification equipment, which comprises a first connecting pipe, a first outer pipe, a first inner pipe, a first boss, a first sealing ring, a first fastening bolt, a first stop block, a second connecting end, a second outer pipe, a second inner pipe, a second boss, a second sealing ring, a second fastening bolt, a second stop block, a clamp, an adjusting nut, an adjusting bolt and the like. It is connected with the corrugated pipe through the first outer pipe in the first connecting pipe, the second outer pipe in the second connecting end is connected with the exhaust pipe, the first inner pipe and the second inner pipe are matched and fixed by using the clamp, the first outer pipe and the first inner pipe are fixed by using the first fastening bolt, and the second outer pipe and the second inner pipe are fixed by using the second fastening bolt, but the above problems cannot be solved.
[0004] Therefore, in order to improve or solve at least one of the above problems, a tail gas pipe hard connection structure for RDE test is provided, which is convenient to connect, can avoid affecting the test result and test efficiency, and can be applied to different vehicle models. Utility model content
[0005] The utility model is carried out in order to solve the above problems, aims at providing a tail gas pipe hard connection structure for RDE test, which is convenient to connect, can avoid affecting the test result and test efficiency, and can be applied to different vehicle models, in order to realize the above purpose, the technical scheme that the utility model adopts is:
[0006] The utility model provides a tail gas pipe hard connection structure for RDE test, has such characteristics, including connecting pipe body, the end of connecting pipe body is equipped with the connecting unit.
[0007] In the tail gas pipe hard connection structure for RDE test provided by the utility model, the connecting unit comprises a first connecting end, and a connecting notch is arranged on the first connecting end.
[0008] In the tail gas pipe hard connection structure for RDE test provided by the utility model, the connecting notches are uniformly arranged on the first connecting end.
[0009] In the tail gas pipe hard connection structure for RDE test provided by the utility model, the connecting notches are linear.
[0010] In the tail gas pipe hard connection structure for RDE test provided by the utility model, a tin paper adhesive tape is arranged on the connecting pipe body and is wound on the first connecting end.
[0011] In the tail gas pipe hard connection structure for RDE test provided by the utility model, the connecting unit further comprises a second connecting end, and a connecting flange is arranged on the second connecting end.
[0012] In the tail gas pipe hard connection structure for RDE test provided by the utility model, a corrugated pipe is arranged on the connecting pipe body.
[0013] In the tail gas pipe hard connection structure for RDE test provided by the utility model, the first connecting end and the second connecting end are stainless steel pipes, and the corrugated pipe is a stainless steel corrugated pipe.
[0014] The tail gas pipe hard connection structure for RDE test provided by the utility model comprises a connecting pipe body, an end portion of the connecting pipe body is provided with a connecting unit, the connecting unit can conveniently connect an automobile exhaust pipe and a test device, can be adjusted according to different automobile models and automobile exhaust pipes, is suitable for RDE test of automobiles of different models, and is favorable for improving test efficiency and avoiding affecting test results.
[0015] Therefore, the tail gas pipe hard connection structure for RDE test provided by the utility model is convenient to connect, can avoid affecting test results and test efficiency, and can be suitable for RDE test of automobiles of different models. BRIEF DESCRIPTION OF DRAWINGS
[0016] The present specification comprises the following drawings, and the shown contents are respectively as follows:
[0017] Figure 1 is a structural schematic view of the tail gas pipe hard connection structure for RDE test in the embodiment of the utility model.
[0018] The figure is marked as: connecting pipe body-10, connecting unit-20, first connecting end-21, connecting notch-211, second connecting end-22, connecting flange-221, corrugated pipe-30. DETAILED DESCRIPTION
[0019] The specific embodiments of the present application will be further described in detail below with reference to the drawings, and the purpose is to help the technical personnel in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present application, and to help its implementation.
[0020] Figure 1 It is the structure schematic view of the exhaust pipe hard connection structure for RDE test in the embodiment of the utility model.
[0021] As Figure 1 shown, the exhaust pipe hard connection structure for RDE test provided by the utility model comprises a connecting pipe body 10, the end of the connecting pipe body 10 is provided with a connecting unit 20, the connecting unit 20 can conveniently connect the connecting pipe body 10 with the automobile exhaust pipe and the test device, and can also be adjusted according to different automobile models and automobile exhaust pipes, is suitable for automobile RDE test of different models, is beneficial to improve test efficiency, avoids affecting test results, so that the exhaust pipe hard connection structure for RDE test provided by the utility model is convenient to connect, can avoid affecting test results and test efficiency, and can be suitable for RDE test of different models.
[0022] The connecting unit 20 comprises a first connecting end 21, the first connecting end 21 is connected with the automobile exhaust pipe, the first connecting end 21 is provided with a connecting notch 211, the connecting notches 211 are uniformly arranged on the first connecting end 21, the connecting notches 211 are linear, can make the first connecting end 21 open in a divergent manner, so as to adapt to different automobile models and automobile exhaust pipes, can improve the applicable range, and is beneficial to improve the connection efficiency and test efficiency.
[0023] The connecting pipe body 10 is provided with a tin paper adhesive tape, the tin paper adhesive tape is wound on the first connecting end 21, after the first connecting end 21 is connected with the automobile exhaust pipe, the tin paper adhesive tape is wound on the first connecting end 21, the connecting notches 211 are shielded and sealed, air leakage is prevented, and the influence on test results is avoided. Meanwhile, the tin paper adhesive tape is further fastened by using a hoop, the sealing property is further improved, and the influence of the connecting notches 211 on test results is further reduced.
[0024] The connecting unit 20 further comprises a second connecting end 22, the second connecting end 22 is provided with a connecting flange 221, the second connecting end 22 is connected with the test device, the connecting flange 221 is annular, is arranged at the end of the second connecting end 22, and is convenient for being connected with the test device.
[0025] The corrugated pipe 30 is arranged on the connecting pipe body 10, one end of the corrugated pipe 30 is connected with the first connecting end 21, the other end of the corrugated pipe 30 is connected with the second connecting end 21, the corrugated pipe 30 can be conveniently turned, and the flexibility of the connecting pipe body 10 is improved.
[0026] The first connecting end 21 and the second connecting end 22 are stainless steel pipes, and the corrugated pipe 30 is a stainless steel corrugated pipe, so that the influence on the exhaust component and the test result can be avoided, and the accuracy of the test result is improved.
[0027] Effects of the embodiment
[0028] The exhaust pipe hard connection structure for RDE test provided by the utility model is convenient to connect, can avoid the influence on the test result and the test efficiency, and can be suitable for RDE test of different vehicle models.
[0029] The utility model is described exemplarily above in combination with the drawings. Obviously, the utility model is not limited by the above mode in the specific implementation. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model, or the above concept and technical scheme of the utility model is directly applied to other occasions without improvement, all falls within the protection scope of the utility model.
Claims
1. A hard connection structure for exhaust pipe of RDE test, characterized in that, It includes a connecting pipe body (10), and the end of the connecting pipe body (10) is provided with a connecting unit (20).
2. A tailpipe hard connection structure for RDE testing according to claim 1, characterized in that, The connection unit (20) includes a first connection end (21), and the first connection end (21) is provided with a connection notch (211).
3. A tailpipe hard connection structure for RDE testing according to claim 2, characterized in that, The connection notches (211) are evenly distributed on the first connection end (21).
4. The exhaust pipe rigid connection structure for RDE testing according to claim 3, characterized in that, The connection gap (211) is linear.
5. The exhaust pipe rigid connection structure for RDE testing according to claim 2, characterized in that, The connecting tube body (10) is provided with tin foil tape, which is wrapped around the first connecting end (21).
6. The exhaust pipe rigid connection structure for RDE testing according to claim 5, characterized in that, The connecting unit (20) further includes a second connecting end (22), on which a connecting flange (221) is provided.
7. The exhaust pipe rigid connection structure for RDE testing according to claim 6, characterized in that, The connecting pipe body (10) is provided with a corrugated pipe (30).
8. The exhaust pipe rigid connection structure for RDE testing according to claim 7, characterized in that, The first connecting end (21) and the second connecting end (22) are stainless steel pipes, and the corrugated pipe (30) is a stainless steel corrugated pipe.