Flange connection assembly and vehicle

Abstract

The utility model provides a flange connecting assembly and a vehicle. The flange connecting assembly comprises a clamp assembly and two flanges, and the clamp assembly comprises a clamp body and an annular positioning piece; the clamp body is provided with a first connecting end and a second connecting end which are distributed in the circumferential direction of the clamp body in a spaced mode, and the first connecting end and the second connecting end can be connected together through a threaded fastener. The annular positioning piece comprises an annular positioning body and positioning parts, the annular positioning body is connected to the inner side of the hoop body, and the positioning parts are arranged on the two opposite sides of the annular positioning body in the axial direction of the annular positioning piece; in the axial direction of the annular positioning piece, the positioning part located on one side of the annular positioning body is connected with one of the two flanges in a matched mode, and the positioning part located on the other side of the annular positioning body is connected with the other one of the two flanges in a matched mode so that the relative position between the two flanges can be limited. The vehicle is high in assembly efficiency and low in assembly cost.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a flange connection assembly and a vehicle using the flange connection assembly. Background Art

[0002] In vehicles, catalysts can reduce the emission of harmful substances in exhaust gas, and superchargers increase the output power of the engine by increasing the density of air entering the engine. Catalysts are usually connected to superchargers.

[0003] In the related art, the flange of the catalyst is connected to the flange of the supercharger. During the connection process, one person is required to lift the catalyst to align the catalyst flange with the supercharger flange, and another person pre-tightens the clamp bolts. Then, the positioning support bracket at the rear of the catalyst is installed in place and the clamp bolts are tightened.

[0004] However, the above-mentioned method of assembling the catalyst and the supercharger is not only complicated in operation steps, resulting in low assembly efficiency, but also requires a lot of manpower, thereby increasing assembly costs. Utility Model Content

[0005] The embodiments of the present application provide a flange connection assembly and a vehicle, which can simplify the assembly steps between the catalyst and the supercharger and save manpower. On the one hand, it can improve the assembly efficiency between the catalyst and the supercharger, and on the other hand, it can reduce the assembly cost between the catalyst and the supercharger.

[0006] The present application provides a flange connection assembly, including a clamp assembly and two flanges, the clamp assembly including a clamp body and an annular positioning member; the clamp body has a first connecting end and a second connecting end spaced apart along the circumference of the clamp body, and the first connecting end and the second connecting end can be connected together by a threaded fastener; the annular positioning member includes an annular positioning body and a positioning portion, the annular positioning body is connected to the inner side of the clamp body, and the positioning portion is arranged on opposite sides of the annular positioning body along the axial direction of the annular positioning member; wherein, in the axial direction of the annular positioning member, the positioning portion located on one side of the annular positioning body is matched and connected with one of the two flanges, and the positioning portion located on the other side of the annular positioning body is matched and connected with the other of the two flanges to limit the relative position between the two flanges.

[0007] As an optional embodiment, the flange includes a connecting portion and a hoop portion connected together along the axial direction of the flange, the outer diameter of the connecting portion is smaller than the outer diameter of the hoop portion, and the annular positioning body is hooped on the outside of the hoop portion; the outer peripheral surface of the connecting portion is the first outer peripheral surface, and the outer peripheral surface of the hoop portion is the second outer peripheral surface, and the first outer peripheral surface and the second outer peripheral surface are connected together through an annular end surface; wherein, a positioning groove is provided on the annular end surface to cooperate with the positioning portion.

[0008] As an optional embodiment, in the axial direction of the flange, the outer edge of the annular end face is closer to the annular positioning body than the inner edge of the annular end face; the flange has a first central axis extending along the axial direction of the flange, and the positioning portion includes a first positioning segment and a second positioning segment connected together along the radial direction of the flange, and the first positioning segment is connected to the annular positioning body; in the direction from the second outer peripheral surface to the first outer peripheral surface, the first positioning segment extends toward the first central axis along the extension direction of the annular end face; the second positioning segment extends along the axial direction of the flange toward the direction away from the bottom of the positioning groove.

[0009] As an optional embodiment, the first positioning section includes a first clamping section and a second clamping section connected together along the radial direction of the flange; the first clamping section is connected to the annular positioning body, and in the direction from the second outer peripheral surface to the first outer peripheral surface, the first clamping section extends toward the slot opening of the positioning groove; the second clamping section is connected to the second positioning section, and in the direction from the second outer peripheral surface to the first outer peripheral surface, the second clamping section extends toward the bottom of the positioning groove; wherein, a protrusion is formed at the connection between the first clamping section and the second clamping section, the protrusion protrudes toward the slot opening of the positioning groove, and a clamping protrusion that is clamped and connected with the protrusion is formed on the bottom of the positioning groove.

[0010] As an optional embodiment, the annular positioning body has a first end and a second end arranged at intervals along the circumference of the annular positioning member; the first end and the second end are staggered to form an inner overlapping section and an outer overlapping section that are overlapped at the connection between the first end and the second end, and the inner overlapping section is located on the inner side of the outer overlapping section; wherein, the inner overlapping section is provided with a connecting protrusion protruding toward the outside, and the outer overlapping section is provided with a through hole for the connecting protrusion to extend into, and the connecting protrusion is slidably engaged with the through hole; the through hole has a first side wall and a second side wall arranged at intervals along the circumference of the annular positioning body, and the connecting protrusion is abutted against the first side wall or the second side wall.

[0011] As an optional embodiment, the clamp body includes two oppositely arranged arc-shaped monomers, one end of the two arc-shaped monomers is connected together by a connecting piece, and the other ends of the two arc-shaped monomers form a first connecting end and a second connecting end respectively; wherein, the annular positioning body is connected to the connecting piece.

[0012] As an optional embodiment, multiple positioning parts are provided on both sides of the annular positioning body in the axial direction, and one positioning part corresponds to one positioning groove; wherein, the multiple positioning parts located on one side of the annular positioning body and the multiple positioning parts located on the other side of the annular positioning body are provided in a one-to-one correspondence.

[0013] As an optional embodiment, the connecting plate has a second central axis extending along the axial direction of the clamp body; the annular positioning body has a third central axis extending along the axial direction of the annular positioning member, and the second central axis and the third central axis are both located on a central axis plane; the positioning parts located on both sides of the central axis plane are arranged symmetrically about the central axis plane.

[0014] As an optional embodiment, the flange has a first central axis extending along the axial direction of the flange; the first central axis coincides with the third central axis.

[0015] On the other hand, the present application provides a vehicle comprising a catalyst, a supercharger and the above-mentioned flange connection assembly; wherein one of the two flanges is a catalyst flange, and the other of the two flanges is a supercharger flange.

[0016] In the flange connection assembly and vehicle provided by the present application, an annular locating piece is provided on the inner side of the clamp body, and a locating portion that cooperates with the flange is provided on the annular locating piece. Therefore, when connecting two flanges, the clamp assembly is first connected to one flange through the matching connection between one flange and the locating portion, and then the clamp assembly is connected to the other flange through the matching connection between the other flange and the locating portion. Finally, the first connecting end and the second connecting end are connected together through threaded fasteners to complete the connection assembly between the two flanges. Such assembly steps only need to be completed by one person.

[0017] Thus, compared with the method of connecting two flanges together in the related art, the use of the clamp assembly provided in this embodiment can improve the assembly efficiency between the two flanges, reduce labor costs, and thus reduce the assembly cost between the two flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A diagram showing a first usage state of the flange connection assembly provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of a clamp assembly in a flange connection assembly provided in an embodiment of the present application;

[0020] Figure 3 A diagram illustrating a second usage state of the flange connection assembly provided in an embodiment of the present application;

[0021] Figure 4 for Figure 1 A structural diagram of the local structure;

[0022] Figure 5 for Figure 4 Exploded diagram;

[0023] Figure 6 for Figure 1A schematic diagram of the three-dimensional structure of the annular positioning member;

[0024] Figure 7 for Figure 6 A magnified schematic diagram of the local structure at point A in the middle;

[0025] Figure 8 for Figure 6 Schematic diagram of the three-dimensional structure from another perspective;

[0026] Figure 9 for Figure 8 A magnified schematic diagram of the local structure at point B in the middle;

[0027] Figure 10 for Figure 3 Schematic diagram of the local structure;

[0028] Figure 11 for Figure 10 A magnified schematic diagram of the local structure at point C in the middle;

[0029] Figure 12 for Figure 3 A schematic diagram of the three-dimensional structure of the annular positioning member;

[0030] Figure 13 for Figure 12 A magnified schematic diagram of the local structure at D in the middle;

[0031] Figure 14 for Figure 1 Schematic diagram of the three-dimensional structure from another perspective.

[0032] Description of reference numerals:

[0033] 1. Clamp body; 2. Ring locating piece; 3. Threaded fastener;

[0034] 10. Clamp assembly; 11. First connecting end; 12. Second connecting end; 13. Arc-shaped unit; 14. Connecting piece; 21. Annular positioning body; 22. Positioning portion; 20. Flange; 11. First central axis; 12. Second central axis; 13. Third central axis;

[0035] 131, extension section; 211, first end section; 212, second end section; 213, inner overlapping section; 214, outer overlapping section; 215, connecting protrusion; 221, first positioning section; 222, second positioning section; 201, connecting section; 202, hoop section; 203, annular end face; 100, flange connection assembly;

[0036] 2141, through hole; 2142, first side wall; 2143, second side wall; 2211, first clamping section; 2212, second clamping section; 2213, protrusion; 2011, first outer peripheral surface; 2021, second outer peripheral surface; 2031, positioning groove; 2032, clamping protrusion. DETAILED DESCRIPTION

[0037] The following will clearly and thoroughly describe the technical solutions in this application in conjunction with the accompanying drawings. In the description of the embodiments of this application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more than two.

[0038] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0039] In the related art, the flange of the catalyst is connected to the flange of the supercharger. During the connection process, since the catalyst flange and the supercharger flange are both smooth surfaces and have no positioning structure, during the assembly process of the catalyst and the supercharger, one person is required to lift the catalyst to align the catalyst flange with the supercharger flange, and another person pre-tightens the clamp bolts. Moreover, since the catalyst can rotate along the flange axis, the bolts cannot be tightened after pre-tightening the clamp bolts. The positioning support bracket at the rear of the catalyst needs to be installed in place before returning to tighten the clamp bolts.

[0040] However, the above-mentioned method of assembling the catalyst and the supercharger is not only complicated in operation steps, resulting in low assembly efficiency, but also requires a lot of manpower, thereby increasing assembly costs.

[0041] Thus, embodiments of the present application provide a flange connection assembly and a vehicle. By providing a positioning portion on the clamp assembly that cooperates with the catalyst flange and the supercharger flange, the two flanges can be positioned before the bolts of the clamp assembly are tightened, thereby enabling the catalyst and supercharger to be positioned. After positioning is completed, the bolts of the clamp assembly can be tightened, and the catalyst and supercharger can be assembled together. This improves the assembly efficiency between the catalyst and supercharger and reduces the assembly cost between the catalyst and supercharger.

[0042] Please combine Figures 1 to 3 , Figure 1This is a diagram of the first usage state of the flange connection assembly provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the three-dimensional structure of the clamp assembly in the flange connection assembly provided in an embodiment of the present application. Figure 3 A second usage state diagram of the flange connection assembly provided in an embodiment of the present application. As shown in the figure, this embodiment provides a flange connection assembly 100, including a clamp assembly 10 and two flanges 20. The clamp assembly 10 includes a clamp body 1 and an annular locating member 2. The clamp body 1 has a first connecting end 11 and a second connecting end 12 spaced apart along the circumference of the clamp body 1, and the first connecting end 11 and the second connecting end 12 can be connected together by a threaded fastener 3. The annular locating member 2 includes an annular locating body 21 and a locating portion 22. The annular locating body 21 is connected to the inner side of the clamp body 1, and the locating portions 22 are provided on opposite sides of the annular locating body 21 along the axial direction of the annular locating member 2. In the axial direction of the annular locating member 2, the locating portion 22 located on one side of the annular locating body 21 cooperates with one of the two flanges 20, and the locating portion 22 located on the other side of the annular locating body 21 cooperates with the other of the two flanges 20 to limit the relative position between the two flanges 20.

[0043] In the flange connection assembly 100 provided in this embodiment, an annular locating member 2 is provided on the inner side of the clamp body 1, and a locating portion 22 that cooperates with the flange 20 is provided on the annular locating member 2. Therefore, when connecting two flanges 20 through the clamp assembly 10, the clamp assembly 10 is first connected to one flange 20 through the cooperation between one flange 20 and the locating portion 22. Then, the clamp assembly 10 is connected to the other flange 20 through the cooperation between the other flange 20 and the locating portion 22. Finally, the first connecting end 11 and the second connecting end 12 are connected together through the threaded fastener 3 to complete the connection and assembly between the two flanges 20. Such assembly steps only require one person to complete. Thus, compared with the method of connecting two flanges in the related art, the use of the clamp assembly 10 in this embodiment can improve the assembly efficiency between the two flanges 20, reduce labor costs, and thus reduce the assembly cost between the two flanges 20.

[0044] It should be noted that the above-mentioned threaded fastener 3 can be a bolt.

[0045] It can be understood that before the two flanges 20 are connected, the clamp assembly 10 should be in an expanded state with room for inward contraction. After the two flanges 20 are connected, the clamp assembly 10 should be in a contracted state. Therefore, in order to facilitate the operation of the clamp assembly 10 during the connection of the two flanges 20 so that it can contract inward as much as possible, in some embodiments, the clamp body 1 includes two relatively arranged arc-shaped monomers 13, one end of the two arc-shaped monomers 13 is connected together by a connecting piece 14, and the other ends of the two arc-shaped monomers 13 respectively form a first connecting end 11 and a second connecting end 12; wherein, the annular positioning body 21 is connected to the connecting piece 14.

[0046] Thus, by providing two arc-shaped monomers 13, the overall deformation of the clamp assembly 10 is made larger, such as Figure 2 As shown, during the process of connecting the two flanges 20, the two arc-shaped monomers 13 can be brought closer to each other through operation; Figure 3 As shown, during the disassembly of the two flanges 20 , the two arc-shaped monomers 13 can be moved away from each other through operation, thereby improving the operational convenience of the clamp assembly 10 .

[0047] It should be noted that in the specific implementation of this embodiment, the connection between the arcuate monomer 13 and the connecting piece 14 is welding, and the connection between the annular positioning body 21 and the arcuate monomer 13 can also be welding, specifically spot welding. The connection between the arcuate monomer 13 and the connecting piece 14 and the connection between the annular positioning body 21 and the arcuate monomer 13 are not specifically limited.

[0048] The first connecting end 11 or the second connecting end 12 formed at the end of the arc-shaped monomer 13 is an extension section 131 formed on the arc-shaped monomer 13 and extending radially along the clamp body 1. Both extension sections 131 are provided with connecting holes (not shown in the figure) for the threaded fastener 3 to pass through.

[0049] Please combine Figure 4 and Figure 5 , Figure 4 for Figure 1 A schematic diagram of the local structure of Figure 5 for Figure 4Exploded diagram. As shown in the figure, in some specific embodiments, the flange 20 includes a connecting portion 201 and a hoop portion 202 connected together along the axial direction of the flange 20. The outer diameter of the connecting portion 201 is smaller than the outer diameter of the hoop portion 202, and the annular positioning body 21 is hooped outside the hoop portion 202. The outer peripheral surface of the connecting portion 201 is a first outer peripheral surface 2011, and the outer peripheral surface of the hoop portion 202 is a second outer peripheral surface 2021. The first outer peripheral surface 2011 and the second outer peripheral surface 2021 are connected together by an annular end surface 203. The annular end surface 203 is provided with a positioning groove 2031 that cooperates with the positioning portion 22. In this way, the cooperation between the positioning portion 22 and the positioning groove 2031 can prevent the flange 20 from rotating.

[0050] It should be noted that, in the specific implementation of this embodiment, the notch of the positioning groove 2031 faces the side away from the annular positioning body 21 .

[0051] More specifically, in the axial direction of the flange 20, the outer edge of the annular end face 203 is closer to the annular positioning body 21 than the inner edge of the annular end face 203; the flange 20 has a first central axis l1 extending along the axial direction of the flange 20, and the positioning portion 22 includes a first positioning segment 221 and a second positioning segment 222 connected together along the radial direction of the flange 20, and the first positioning segment 221 is connected to the annular positioning body 21; in the direction from the second outer peripheral surface 2021 to the first outer peripheral surface 2011, the first positioning segment 221 extends along the extension direction of the annular end face 203 toward the first central axis l1; the second positioning segment 222 extends along the axial direction of the flange 20 toward the direction away from the bottom of the positioning groove 2031.

[0052] In order to improve the connection reliability between the positioning portion 22 and the positioning groove 2031 and enhance the positioning effect of the flange 20, in some optional embodiments, the first positioning section 221 includes a first clamping section 2211 and a second clamping section 2212 connected together along the radial direction of the flange 20; the first clamping section 2211 is connected to the annular positioning body 21, and extends toward the notch of the positioning groove 2031 in the direction from the second outer peripheral surface 2021 to the first outer peripheral surface 2011; The second clamping section 2212 is connected to the second positioning section 222, and in the direction from the second outer peripheral surface 2021 to the first outer peripheral surface 2011, the second clamping section 2212 extends toward the bottom of the positioning groove 2031; wherein, a protrusion 2213 is formed at the connection between the first clamping section 2211 and the second clamping section 2212, and the protrusion 2213 protrudes toward the slot mouth of the positioning groove 2031, and a clamping protrusion 2032 is formed on the bottom of the positioning groove 2031 to be clamped and connected with the protrusion 2213.

[0053] In this way, through the cooperation between the protrusion 2213 and the clamping protrusion 2032, not only the positioning effect of the flange 20 can be improved, but also the tightening effect of the clamp assembly 10 can be improved, thereby improving the connection reliability between the two flanges 20.

[0054] As for the inner annular locating member 2, if the inner diameter of the annular locating member 2 can also change to a certain extent during the connection process of the flanges 20, that is, after the flanges 20 are connected together, the annular locating member 2 can shrink to a certain extent, then the connection reliability between the two flanges 20 can be further improved. Therefore, in order to ensure that the inner diameter of the annular locating member 2 can change to a certain extent when the clamp assembly 10 is in the two states.

[0055] Please combine Figures 6 to 9 , Figure 6 for Figure 1 Schematic diagram of the three-dimensional structure of the annular positioning member, Figure 7 for Figure 6 A schematic diagram of the enlarged local structure at point A. Figure 8 for Figure 6 Schematic diagram of the three-dimensional structure from another perspective, Figure 9 for Figure 8 A schematic enlarged view of the partial structure at point B in the middle. In some optional embodiments, the annular positioning body 21 has a first end 211 and a second end 212 spaced apart along the circumference of the annular positioning member 2; the first end 211 and the second end 212 are staggered to form an inner overlapping section 213 and an outer overlapping section 214 overlapping at the connection between the first end 211 and the second end 212, with the inner overlapping section 213 located inside the outer overlapping section 214; wherein the inner overlapping section 213 is provided with a connecting protrusion 215 protruding outward, and the outer overlapping section 214 is provided with a through hole 2141 for the connecting protrusion 215 to extend into, and the connecting protrusion 215 slidably engages with the through hole 2141; the through hole 2141 has a first side wall 2142 and a second side wall 2143 spaced apart along the circumference of the annular positioning body 21, and the connecting protrusion 215 abuts against the first side wall 2142 or the second side wall 2143.

[0056] It should be noted that the connecting protrusion 215 can be formed by stamping on the inner overlapping section 213. Here, the specific forming method of the connecting protrusion 215 is not limited.

[0057] like Figures 6 to 9 As shown, when the clamp assembly 10 clamps the two flanges 20 and connects the two flanges 20 together, the connecting protrusion 215 abuts against the first side wall 2142. At this time, the inner diameter of the annular positioning body 21 is relatively small.

[0058] Furthermore, please combine Figures 10 to 13 , Figure 10for Figure 3 Schematic diagram of the local structure, Figure 11 for Figure 10 A magnified schematic diagram of the local structure at point C in the middle. Figure 12 for Figure 3 Schematic diagram of the three-dimensional structure of the annular positioning member, Figure 13 for Figure 12 An enlarged schematic diagram of the partial structure at point D in the middle. As shown in the figure, when the clamp assembly 10 is not tightened against the two flanges 20, that is, when the two flanges 20 are not connected together, the connecting protrusion 215 abuts against the second side wall 2143. At this time, compared to the state when the two flanges 20 are connected together, the annular positioning member 2 has expanded outward to a certain extent, resulting in a larger inner diameter of the annular positioning body 21.

[0059] It should be noted that, in the illustration of this embodiment, the first end portion 211 is the end portion of the outer overlapping section 214 , and the second end portion 212 is the end portion of the inner overlapping section 213 .

[0060] In order to improve the positioning effect of the annular positioning member 2 between the two flanges 20, in some embodiments, multiple positioning portions 22 are provided on both sides of the opposite axial directions of the annular positioning body 21, and one positioning portion 22 corresponds to one positioning groove 2031; wherein, the multiple positioning portions 22 located on one side of the annular positioning body 21 and the multiple positioning portions 22 located on the other side of the annular positioning body 21 are provided one-to-one in correspondence.

[0061] like Figure 6 and Figure 12 As shown, in the specific implementation of this embodiment, the number of positioning portions 22 located on the same side of the annular positioning body 21 in the circumferential direction of the annular positioning member 2 is six. It should be noted that in other embodiments, the number of positioning portions 22 located on the same side of the annular positioning body 21 may also be other numbers. Here, there is no specific limitation on the number of positioning portions 22.

[0062] It is understandable that if the overall structure of the clamp assembly 10 is more symmetrical, the stability of the overall structure of the clamp assembly 10 can be improved. Figure 5 and Figure 14 , Figure 14 for Figure 1 Schematic diagram of the three-dimensional structure from another perspective.

[0063] As shown in the figure, in this embodiment, the connecting piece 14 has a second central axis 12 extending axially along the clamp body 1; the annular positioning body 21 has a third central axis 13 extending axially along the annular positioning member 2. The second central axis 12 and the third central axis 13 both lie on a central axial plane. The positioning portions 22 on either side of the central axial plane are symmetrically arranged about the central axial plane. This enhances the structural symmetry of the annular positioning member 2, and consequently, the structural symmetry of the clamp assembly 10.

[0064] Of course, if the annular locating member 2 is coaxially arranged with the flange 20, the clamping effect of the clamp assembly 10 provided in this embodiment can be further enhanced, and the positioning effect of the annular locating member 2 on the flange 20 can be improved. Therefore, in some optional embodiments, the first central axis l1 and the third central axis l3 coincide with each other. In this way, the structural stability and performance of the clamp assembly 10 can be further improved.

[0065] This embodiment further provides a vehicle, comprising a catalyst, a supercharger, and the flange connection assembly 100 in the above embodiment; wherein one of the two flanges 20 is a catalyst flange, and the other is a supercharger flange.

[0066] It should be noted that the flange connection assembly 100 has been described in detail in the above embodiment and will not be described in detail herein. Of course, the vehicle provided in this embodiment may also include other modules or components that enable the vehicle to operate normally, and no limitation is made here.

[0067] Specifically, when assembling the catalyst and supercharger in the vehicle provided by this embodiment, the clamp body 1 is first expanded, that is, the first connecting end 11 and the second connecting end 12 are separated, and the two arc-shaped monomers 13 are separated from each other. Then, the positioning portion 22 located on one side of the annular positioning body 21 is aligned with the notch of the supercharger flange, and the clamp assembly 10 is pushed in the axial direction of the supercharger flange. The positioning portion 22 is locked inside the notch of the supercharger flange.

[0068] Afterwards, align the notch of the catalyst flange with the positioning portion 22 located on the other side of the annular positioning body 21, and push the catalyst flange along the axial direction of the catalyst flange. Since the positioning portion 22 has only one end connected to the annular positioning body 21 and the other end is a free end, the positioning portion 22 has a certain deformation amount. During the pushing process, the positioning portion 22 opens, and after pushing, the positioning portion 22 retracts, so that the supercharger flange and the catalyst flange are both tightly embraced by the positioning portion 22. At this time, the catalyst is fixed by the clamp assembly 10, and the first connecting end 11 and the second connecting end 12 can be connected together by the threaded fastener 3 without human support.

[0069] Therefore, the vehicle provided in this embodiment, by adopting the flange connection assembly 100 in the above-mentioned embodiment, can not only improve the assembly efficiency of the vehicle, but also reduce the assembly cost of the vehicle.

[0070] The above content is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A flange connection assembly, characterized in that: include: The clamp assembly includes a clamp body and an annular positioning member; The clamp body has a first connecting end and a second connecting end spaced apart along the circumference of the clamp body, and the first connecting end and the second connecting end can be connected together by a threaded fastener; the annular positioning member includes an annular positioning body and a positioning portion, the annular positioning body is connected to the inner side of the clamp body, and the positioning portion is provided on opposite sides of the annular positioning body along the axial direction of the annular positioning member; and Two flanges; In which, in the axial direction of the annular positioning member, the positioning portion located on one side of the annular positioning body is cooperated and connected with one of the two flanges, and the positioning portion located on the other side of the annular positioning body is cooperated and connected with the other of the two flanges to limit the relative position between the two flanges.

2. The flange connection assembly according to claim 1, characterized in that: The flange comprises a connecting portion and a hoop portion connected together along the axial direction of the flange, the outer diameter of the connecting portion is smaller than the outer diameter of the hoop portion, and the annular positioning body is hooped on the outer side of the hoop portion; The outer peripheral surface of the connecting portion is a first outer peripheral surface, the outer peripheral surface of the hoop portion is a second outer peripheral surface, and the first outer peripheral surface and the second outer peripheral surface are connected together through an annular end surface; Wherein, a positioning groove cooperating with the positioning portion is provided on the annular end surface.

3. The flange connection assembly according to claim 2, characterized in that: In the axial direction of the flange, the outer edge of the annular end surface is closer to the annular positioning body than the inner edge of the annular end surface; The flange has a first central axis extending along the axial direction of the flange, the positioning portion includes a first positioning segment and a second positioning segment connected together along the radial direction of the flange, and the first positioning segment is connected to the annular positioning body; In the direction from the second outer circumferential surface to the first outer circumferential surface, the first positioning section extends toward the first central axis along the extension direction of the annular end surface; The second positioning section extends along the axial direction of the flange in a direction away from the bottom of the positioning groove.

4. The flange connection assembly according to claim 3, characterized in that: The first positioning section includes a first clamping section and a second clamping section connected together along the radial direction of the flange; The first clamping section is connected to the annular positioning body, and in the direction from the second outer peripheral surface to the first outer peripheral surface, the first clamping section extends toward the notch of the positioning groove; The second clamping section is connected to the second positioning section, and in the direction from the second outer peripheral surface to the first outer peripheral surface, the second clamping section extends toward the bottom of the positioning groove; A protrusion is formed at the connection between the first clamping section and the second clamping section. The protrusion protrudes toward the slot opening of the positioning slot. A clamping protrusion engaged with the protrusion is formed on the bottom of the positioning slot.

5. The flange connection assembly according to any one of claims 1 to 4, characterized in that: The annular positioning body has a first end and a second end that are spaced apart along the circumference of the annular positioning member; The first end portion and the second end portion are staggered to form an inner overlapping section and an outer overlapping section that are overlapped at the connection between the first end portion and the second end portion, and the inner overlapping section is located inside the outer overlapping section; The inner overlapping section is provided with a connecting protrusion protruding outward, and the outer overlapping section is provided with a through hole for the connecting protrusion to extend into, and the connecting protrusion is slidably engaged with the through hole; The through hole has a first side wall and a second side wall that are spaced apart along the circumference of the annular positioning body, and the connecting protrusion is abutted against the first side wall or the second side wall.

6. The flange connection assembly according to any one of claims 2 to 4, characterized in that: The clamp body includes two arc-shaped monomers arranged opposite to each other, one end of the two arc-shaped monomers is connected together by a connecting piece, and the other ends of the two arc-shaped monomers form the first connecting end and the second connecting end respectively; Wherein, the annular positioning body is connected to the connecting piece.

7. The flange connection assembly according to claim 6, characterized in that: A plurality of positioning portions are provided on opposite axial sides of the annular positioning body, and one positioning portion corresponds to one positioning groove; Wherein, the plurality of positioning portions located on one side of the annular positioning body and the plurality of positioning portions located on the other side of the annular positioning body are arranged in a one-to-one correspondence.

8. The flange connection assembly according to claim 7, characterized in that: The connecting piece has a second central axis extending along the axial direction of the clamp body; The annular positioning body has a third central axis extending along the axial direction of the annular positioning member, and the second central axis and the third central axis are both located on a central axis plane; The positioning parts located on both sides of the central axis plane are symmetrically arranged with respect to the central axis plane.

9. The flange connection assembly according to claim 8, characterized in that: The flange has a first central axis extending along the axial direction of the flange; The first central axis coincides with the third central axis.

10. A vehicle, characterized in that: A device comprising a catalyst, a supercharger and a flange connection assembly according to any one of claims 1 to 9; One of the two flanges is a catalyst flange, and the other of the two flanges is a supercharger flange.

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