Assembly type automobile air outlet pipe
By designing a prefabricated vehicle air outlet pipe with a multi-tube section combination and adopting a rotary connection method, the problem that the existing EGR air outlet pipe cannot be adapted to multiple models is solved, and the multi-adaptation of the air outlet pipe and the efficient utilization of resources are achieved.
Patent Information
- Application Number
- CN202421350941.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The existing EGR air outlet pipe is fixedly assembled, and cannot be adapted to many car models, resulting in low adaptability and waste of resources.
Design a prefabricated vehicle air outlet pipe, including a main body of the air outlet pipe and two connecting flanges. The main body of the air outlet pipe is composed of multiple pipe sections, and is closely connected and rotated through the first connecting part and the second connecting part to realize multiple adaptation. sex.
It realizes the multi-adaptation of the EGR air outlet pipe, can adapt to multiple models, avoiding the problems of specialized configuration of one car and waste of resources.
Smart Images
Figure CN222501862U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of air outlet pipes, and in particular to an assembled automobile air outlet pipe. Background Art
[0002] When the automobile engine is working, the EGR device can guide a proper amount of exhaust gas in the exhaust pipe to the intake pipe, and enter the cylinder together with the fresh mixed gas for combustion, and use the dilution effect of the recirculated exhaust gas on the fresh mixed gas and the suppression effect on the combustion speed to reduce the maximum combustion temperature, so as to achieve the purpose of reducing the amount of NOX generated.
[0003] The existing EGR outlet pipe has the following main problems when in use:
[0004] (1) The normal EGR outlet pipe is a fixed assembly.
[0005] (2) When assembling traditional EGR outlet pipes, one type of EGR outlet pipe is matched with one type of vehicle, and it is not possible to adapt one type of EGR outlet pipe to multiple types of vehicles.
[0006] Therefore, it is necessary to transform the existing automobile exhaust pipe now. Utility Model Content
[0007] The purpose of the present application is to provide an automobile exhaust pipe that can solve at least one defect in the above-mentioned background technology.
[0008] In order to achieve at least one of the above-mentioned purposes, the technical solution adopted in the present application is: an assembled automobile exhaust pipe, comprising an exhaust pipe main body and two connecting flanges; the connecting flanges are arranged at both ends of the exhaust pipe main body for fixed installation; the exhaust pipe main body comprises at least two pipe sections, the ends of the two pipe sections are tightly connected by respectively arranged first connecting parts and second connecting parts, and the two interconnected pipe sections are suitable for circumferential rotation through the first connecting part and the second connecting part.
[0009] Preferably, there are two pipe sections, and the two pipe sections are respectively a straight pipe and a curved pipe.
[0010] Preferably, there are two pipe sections, and both of the two pipe sections are curved pipes.
[0011] Preferably, there are three pipe sections, including two curved pipes and one straight pipe; the curved pipes are respectively connected to both ends of the straight pipe.
[0012] Preferably, the bent pipe includes an arc-shaped bent pipe and an S-shaped bent pipe.
[0013] Preferably, the air outlet pipe body further includes at least one bellows, and the bellows is arranged between adjacent pipe sections.
[0014] Preferably, the first connecting part includes a connecting tube and a protruding piece arranged on the outer wall of the connecting tube; the second connecting part includes a connecting cavity and a sliding groove arranged on the inner wall of the connecting cavity, and the sliding groove includes an axial section and a circumferential section; when the pipe sections are connected, the first connecting part is suitable for being inserted into the connecting cavity through the connecting tube and rotating, and then the protruding piece is suitable for sliding successively along the axial section and the circumferential section of the sliding groove.
[0015] Preferably, the number of the protrusions and the slide grooves is two corresponding ones, and the two protrusions and the slide grooves are respectively arranged at an interval of 180° along the circumferential direction of the connecting pipe and the connecting cavity.
[0016] Preferably, rubber pads are provided between adjacent pipe sections, and when adjacent pipe sections are connected, the rubber pads are in a compressed state, so that a tight connection is formed between the adjacent pipe sections.
[0017] Preferably, the end surfaces of the connection between adjacent pipe sections respectively present a protrusion and a recessed portion with corresponding shapes; and the rubber pad is arranged between the protrusion and the recessed portion.
[0018] Compared with the prior art, the beneficial effects of this application are:
[0019] Compared with the existing assembled automobile exhaust pipe, the present application is provided with a first connection part and a second connection part. The exhaust pipe can be rotated by the first connection part and the second connection part to adjust the assembly direction, so that the exhaust pipe of the present application can adapt to multiple vehicle models, and is no longer limited to one exhaust pipe that can only adapt to one vehicle model. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.
[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model when two pipe sections are combined.
[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of another combination of two pipe sections of the utility model.
[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model when two pipe sections are combined and connected to the corrugated pipe.
[0025] Figure 6 For this utility model Figure 5 A local enlarged schematic diagram of point A in the middle.
[0026] Figure 7 For this utility model Figure 5 Schematic diagram of the local method at B in the figure.
[0027] Figure 8 For this utility model Figure 5 Schematic diagram of the local method at C in the figure.
[0028] Fig. 9 It is a schematic diagram of the cross-sectional structure of the utility model when three pipe sections are combined.
[0029] Fig.10 This is a schematic diagram of the cross-sectional structure of the utility model when three pipe sections are combined and connected to the corrugated pipe
[0030] In the figure: the outlet pipe body 1, the arc-shaped bend pipe 10, the straight pipe 11, the S-shaped bend pipe 12, the bellows 13, the connecting flange 14, the first connecting part 2, the connecting pipe 20, the protruding piece 21, the second connecting part 3, the connecting cavity 30, the slide groove 31, the axial section 310, the circumferential section 311, the rubber pad 4, the protruding part 5, and the inner recessed part 6. DETAILED DESCRIPTION
[0031] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0032] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.
[0033] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.
[0034] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.
[0035] One of the preferred embodiments of the present application is as follows: Figures 1 to 9 As shown, an assembled automobile exhaust pipe comprises an exhaust pipe body 1 and two connecting flanges 14. The connecting flanges 14 are arranged at both ends of the exhaust pipe body 1 for fixed installation. The exhaust pipe body 1 comprises at least two pipe sections, the ends of the two pipe sections are tightly connected by respectively arranged first connecting parts 2 and second connecting parts 3, and the two interconnected pipe sections can be rotated in a circumferential direction through the first connecting parts 2 and the second connecting parts 3.
[0036] It should be known that the traditional automobile EGR outlet pipe is a fixed connection, and one model is equipped with one EGR outlet pipe. It is not possible to adapt one EGR outlet pipe to multiple models. This results in low adaptability of the EGR outlet pipe and causes waste of resources to a certain extent.
[0037] Therefore, in the present embodiment, by improving the assembly combination and connection method of the exhaust pipe main body 1, a first connection part 2 and a second connection part 3 are provided in the connection method, and a plurality of pipe sections of different shapes can be assembled in the assembly combination, so that the EGR exhaust pipe can be adapted to a variety of vehicle models, avoiding problems such as special matching for one vehicle and waste of resources.
[0038] It can be understood that in this embodiment, the air outlet pipe body 1 is a combination of multiple pipe sections, and the adjacent pipe sections are connected through the first connecting portion 2 and the second connecting portion 3, so as to achieve the multi-adaptability of the air outlet pipe body 1. There are many solutions for achieving the multi-adaptability of the air outlet pipe body 1, and the specific structures of different solutions are also different. For the convenience of understanding, two embodiments are used for explanation below.
[0039] Embodiment 1:
[0040] like Figures 2 to 8 As shown, the air outlet pipe body 1 includes two pipe sections. Adjacent pipe sections are tightly connected via a first connecting portion 2 and a second connecting portion 3 disposed at opposite ends of the connecting surface, and can be rotated in a circumferential direction via the first connecting portion 2 and the second connecting portion 3.
[0041] It is understandable that in this embodiment, there are multiple specific combinations of the two pipe sections included in the outlet pipe body 1. The two pipe sections may be a straight pipe 11 and a curved pipe, or both pipe sections may be curved pipes, wherein the curved pipes include an arc curved pipe 10 and an S-shaped curved pipe 12. The following is explained using three specific examples, but the specific combination of the two pipe sections is not limited to these three examples.
[0042] Example 1: Figure 2 As shown, the two pipe sections are respectively a straight pipe 11 and a bent pipe, and the bent pipe is an arc-shaped bent pipe 10.
[0043] Specifically, the air outlet pipe body 1 includes two pipe sections, which are a straight pipe 11 and a curved pipe. The curved pipe is an arc-shaped curved pipe 10. The straight pipe 11 and the arc-shaped curved pipe 10 are tightly connected through the first connecting part 2 and the second connecting part 3, and the straight pipe 11 and the arc-shaped curved pipe 10 can also rotate in a circular direction through the first connecting part 2 and the second connecting part 3.
[0044] Example 2: Figure 3 As shown, the two pipe sections are respectively a straight pipe 11 and a bent pipe, and the bent pipe is an S-shaped bent pipe 12.
[0045] Specifically, the air outlet pipe body 1 includes two pipe sections, which are a straight pipe 11 and a bent pipe. The bent pipe is an S-shaped bent pipe 12. The straight pipe 11 and the S-shaped bent pipe 12 are tightly connected through the first connecting part 2 and the second connecting part 3, and the straight pipe 11 and the S-shaped bent pipe 12 can also rotate in a circular direction through the first connecting part 2 and the second connecting part 3.
[0046] Example 3: Figure 4 As shown, both pipe sections are bent pipes, and the bent pipes include an arc-shaped bent pipe 10 and an S-shaped bent pipe 12 .
[0047] Specifically, the air outlet pipe body 1 includes two pipe sections, both of which are bent pipes. The bent pipes include an arc-shaped bent pipe 10 and an S-shaped bent pipe 12. The arc-shaped bent pipe 10 and the S-shaped bent pipe 12 are tightly connected through the first connecting part 2 and the second connecting part 3, and the arc-shaped bent pipe 10 and the S-shaped bent pipe 12 can also rotate in a circular direction through the first connecting part 2 and the second connecting part 3.
[0048] It can be understood that the above three examples can all meet the requirements of this application, and those skilled in the art can make their own selections according to actual needs.
[0049] In this embodiment, the two pipe sections included in the outlet pipe body 1 may have errors during manufacturing, so that the two pipe sections may not be connected when used. Therefore, the outlet pipe body 1 also includes a bellows 13, which is arranged between two adjacent pipe sections and can compensate for the errors that occur during manufacturing by deformation, so that the two pipe sections that have errors during manufacturing can still be used.
[0050] It is understandable that there may be many specific combinations of the bellows 13 and the two pipe sections, including but not limited to the following three.
[0051] Method 1: The corrugated tube 13 is connected between a straight tube 11 and an arc-shaped curved tube 10 .
[0052] Mode 2: The corrugated tube 13 is connected between a straight tube 11 and an S-shaped bent tube 12 .
[0053] Method 3: If Figure 5 As shown, the bellows 13 is connected between the arc-shaped bend pipe 10 and the S-shaped bend pipe 12. The arc-shaped bend pipe 10 and the S-shaped bend pipe 12 are tightly connected to the two ends of the bellows 13 through the first connecting portion 2 and the second connecting portion 3 arranged at the ends of the corresponding connecting surfaces, and the arc-shaped bend pipe 10, the bellows 13 and the S-shaped bend pipe 12 can also rotate in the circumferential direction through the first connecting portion 2 and the second connecting portion 3.
[0054] It should be known that the above three combinations of the bellows 13 can all meet the requirements of this application, and those skilled in the art can make their own choices. In this embodiment, the above three combinations are preferably used.
[0055] In this embodiment, Figure 8 As shown, rubber pads 4 are arranged between adjacent pipe sections. When the adjacent pipe sections are connected, the rubber pads 4 are in a compressed state so that a sealed connection is formed between the adjacent pipe sections.
[0056] It can be understood that when adjacent pipe sections are connected, the protrusion 21 moves axially along the axial section 310 of the slide groove 31, thereby driving the adjacent pipe sections to squeeze each other at one end of the connection. Because the rubber pad 4 is arranged between the adjacent pipe sections, the rubber pad 4 is subjected to the squeezing force between the adjacent pipe sections and is in a compressed state, so that a sealed connection is formed between the adjacent pipe sections.
[0057] In this embodiment, Figure 6 , 7 As shown, the end faces of the connection between adjacent pipe sections respectively present a protruding portion 5 and a concave portion 6 of corresponding shapes, and the rubber pad 4 is arranged between the protruding portion 5 and the concave portion 6.
[0058] It can be understood that the end faces of the connection between adjacent pipe sections are respectively provided with protrusions 5 and recesses 6 of corresponding shapes, and the rubber pad 4 is arranged between the protrusion 5 and the recess 6. The protrusion 5 and the recess 6 of corresponding shapes can increase the connection area between the adjacent pipe sections, make the rubber pad 4 more closely connected to the end faces of the adjacent pipe sections, and make the connection between the adjacent pipe sections more closely connected, so as to improve the overall sealing of the trachea main body 1.
[0059] In this embodiment, Figures 6 to 8As shown, the first connection part 2 includes a connection tube 20 and a protrusion 21 disposed on the outer wall of the connection tube 20. The second connection part 3 includes a connection cavity 30 and a slide groove 31 disposed on the inner wall of the connection cavity 30, and the slide groove 31 includes an axial section 310 and a circumferential section 311. When the two ends of the arc-shaped curved tube 10, the S-shaped curved tube 12 and the straight tube 11 are connected, the first connection part 2 can be inserted into the connection cavity 30 through the connection tube 20 and rotated, and then the protrusion 21 can slide along the axial section 310 and the circumferential section 311 of the slide groove 31 in sequence.
[0060] It can be understood that, in this embodiment, there are multiple ways to configure the first connection portion 2 and the second connection portion 3, including but not limited to the following two.
[0061] Mode 1: The first connecting portion 2 and the second connecting portion 3 are respectively arranged at two ends of the same pipe section.
[0062] Method 2: The first connecting portion 2 or the second connecting portion 3 is provided at both ends of the same pipe section.
[0063] It should be known that both of the above two configurations can meet the requirements of this application, and those skilled in the art can make their own choices. In this embodiment, the above configuration one is preferably adopted.
[0064] In this embodiment, Figures 2 to 5 As shown, by making the protruding member 21 correspond to the axial section 310 of the chute 31, the protruding member 21 is driven to move axially along the axial section 210 of the chute 21, so that the connecting pipe 20 is inserted into the connecting cavity 30. When the protruding member 21 moves to the end of the axial section 310 of the chute 31, the first connecting part 2 is rotated to drive the protruding member 21 to move circumferentially along the circumferential section 311 of the chute 31, thereby completing the connection of adjacent pipe sections.
[0065] It can be understood that the number of the protrusions 21 and the slide grooves 31 is two corresponding ones, and the two protrusions 21 and the slide grooves 31 are respectively arranged at an interval of 180° along the circumferential direction of the connecting pipe 20 and the connecting cavity 30 .
[0066] Embodiment 2:
[0067] Compared with the first embodiment, the second embodiment is different in that: Fig. 9 , 10 As shown, the air outlet pipe body 1 includes three pipe sections, namely two curved pipes and a straight pipe 11. Adjacent pipe sections are tightly connected by the first connecting portion 2 and the second connecting portion 3 arranged at the ends of the opposite connecting surfaces, and can be rotated in the circumferential direction by the first connecting portion 2 and the second connecting portion 3. The connection method between adjacent pipe sections in the second embodiment can refer to the connection structure of the first embodiment described above.
[0068] It can be understood that, in this embodiment, there are many specific combinations of the three pipe sections included in the air outlet pipe body 1, including but not limited to the following.
[0069] Combination 1: Both of the two curved pipes are arc-shaped curved pipes 10 , and the two arc-shaped curved pipes 10 are connected to a straight pipe 11 .
[0070] Combination 2: Both of the two bent pipes are S-shaped bent pipes 12 , and the two S-shaped bent pipes 12 are connected to a straight pipe 11 .
[0071] Combination 3: Fig. 9 As shown, the two curved pipes are respectively an arc curved pipe 10 and an S-shaped curved pipe 11, and an arc curved pipe 10 and an S-shaped curved pipe 12 are connected to a straight pipe 11. The arc curved pipe 10 and the S-shaped curved pipe 12 are tightly connected to the straight pipe 11 at both ends through the first connecting portion 2 and the second connecting portion 3 provided at the ends of the opposite connecting surfaces, and the arc curved pipe 10 and the S-shaped curved pipe 12 and the straight pipe 11 can also rotate in the circumferential direction through the first connecting portion 2 and the second connecting portion 3.
[0072] It should be known that the above three combinations can all meet the requirements of this application, and those skilled in the art can make their own selections. In this embodiment, the above three combinations are preferably used.
[0073] In this embodiment, the three pipe sections included in the outlet pipe body 1 may have errors during processing and manufacturing, so that the three pipe sections may not be connected when used. Therefore, the outlet pipe body 1 also includes a bellows 13, which is arranged between two adjacent pipe sections and can compensate for the errors that occur during processing and manufacturing of the pipe sections through deformation, so that the two pipe sections that have errors during processing and manufacturing can still be used.
[0074] It is understandable that there may be many specific combinations of the bellows 13 and the three pipe sections, including but not limited to the following three.
[0075] Mode 1: The corrugated pipe 13 is connected to a straight pipe 11 and two arc-shaped curved pipes 10 .
[0076] Mode 2: The corrugated pipe 13 is connected to a straight pipe 11 and two S-shaped bent pipes 12 .
[0077] Method 3: If Fig.10As shown, the bellows 13 is connected with an arc-shaped bend pipe 10, an S-shaped bend pipe 12 and a straight pipe 11. The arc-shaped bend pipe 10, the S-shaped bend pipe 12 and the straight pipe 11 are tightly connected with the two ends of the bellows 13 through the first connecting part 2 and the second connecting part 3 arranged at the ends of the opposite connecting surfaces, and the arc-shaped bend pipe 10, the straight pipe 11, the S-shaped bend pipe 12 and the bellows 13 can also rotate in the circumferential direction through the first connecting part 2 and the second connecting part 3.
[0078] It should be known that the above three combinations of the bellows 13 can all meet the requirements of this application, and those skilled in the art can make their own choices. In this embodiment, the above three combinations are preferably used.
[0079] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.
Claims
1. An assembled automobile exhaust pipe, characterized in that: include: An air outlet pipe main body and two connecting flanges; the connecting flanges are arranged at both ends of the air outlet pipe main body for fixed installation; the air outlet pipe main body includes at least two pipe sections, the ends of the two pipe sections are tightly connected by respectively arranged first connecting parts and second connecting parts, and the two interconnected pipe sections are suitable for circumferential rotation through the first connecting part and the second connecting part.
2. The assembled automobile exhaust pipe according to claim 1, characterized in that: There are two pipe sections, and the two pipe sections are respectively a straight pipe and a curved pipe.
3. The assembled automobile exhaust pipe according to claim 1, characterized in that: There are two pipe sections, and both of the pipe sections are bent pipes.
4. The assembled automobile exhaust pipe according to claim 1, characterized in that: There are three pipe sections, including two bent pipes and one straight pipe; the bent pipes are respectively connected to the two ends of the straight pipe.
5. An assembled automobile exhaust pipe as claimed in claim 2, 3 or 4, characterized in that: The bent pipe includes an arc-shaped bent pipe and an S-shaped bent pipe.
6. The assembled automobile exhaust pipe according to claim 1, characterized in that: The air outlet pipe body further comprises at least one bellows, and the bellows is arranged between adjacent pipe sections.
7. The assembled automobile exhaust pipe according to claim 1, characterized in that: The first connecting part includes a connecting tube and a protruding piece arranged on the outer wall of the connecting tube; the second connecting part includes a connecting cavity and a sliding groove arranged on the inner wall of the connecting cavity, and the sliding groove includes an axial section and a circumferential section; when the pipe sections are connected, the first connecting part is suitable for being inserted into the connecting cavity through the connecting tube and rotating, and then the protruding piece is suitable for sliding successively along the axial section and the circumferential section of the sliding groove.
8. The assembled automobile exhaust pipe according to claim 7, characterized in that: The number of the protrusions and the number of the slide grooves are two, and the two protrusions and the slide grooves are respectively arranged at intervals of 180° along the circumferential direction of the connecting pipe and the connecting cavity.
9. The assembled automobile exhaust pipe according to claim 1, characterized in that: Rubber pads are arranged between adjacent pipe sections. When adjacent pipe sections are connected, the rubber pads are in a compressed state so that a tight connection is formed between the adjacent pipe sections.
10. The assembled automobile exhaust pipe according to claim 9, characterized in that: The end surfaces of the connection places of the adjacent pipe sections respectively present protrusions and recesses with corresponding shapes; the rubber pad is arranged between the protrusions and the recesses.