Flange component

Abstract

The invention provides a flange component and a vehicle, the flange component is suitable for being mounted to a bearing structure with a mounting hole, and the vehicle comprises the flange component. The flange member includes a base plate and a mating portion. The mating portion extends from the base plate and is adapted to fit in the mounting hole. The mating portion includes a plurality of retention ribs, each of the plurality of retention ribs having a retention edge adapted to face an inner edge of the mounting hole. The plurality of retaining ribs comprise at least two first retaining ribs and at least two second retaining ribs, and the matching part is suitable for being in interference fit with the mounting hole at the at least two first retaining ribs and is suitable for being in clearance fit with the mounting hole at the at least two second retaining ribs. At least a portion of each of the at least two first retention ribs including the retention edge is configured to taper in a direction toward an inner edge of the mounting hole. The flange component can be stably pre-retained on the bearing structure through the first retaining rib and the second retaining rib, so that the assembly efficiency can be improved, and automatic assembly can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, and more particularly to a flange member with a pre-holding structure for a vehicle. BACKGROUND

[0002] At present, flange members are required in many positions in vehicles, such as flange members with through holes to allow pipes to pass through or flange members in the form of cover plates. The flange members are usually connected with other structures of the vehicle through threaded fasteners such as bolts, studs, etc. In the assembly of vehicles, in order to facilitate automated production and / or improve assembly efficiency, it is desirable that the flange member can be pre-held on the vehicle structure to be connected first, and then fixed through the threaded fasteners.

[0003] Figures 1A-2B Some flange members with pre-holding structures in the prior art are shown. Referring to Figure 1A and Figure 1B , Figure 1A and Figure 1B The flange member 10 can be pre-held on the vehicle structure 13 through two positioning pins 12 thereon. However, the positioning pins 12 cannot limit the movement of the flange member 10 away from the vehicle structure 13 in the axial direction of the positioning pins 12, which is not conducive to the case where, for example, the mounting surface 14 on the vehicle structure 13 for mounting the flange member 10 extends in the vertical direction in the actual installation environment, which can cause the flange member 10 to fall off; in addition, the positioning pins 12 cannot be applied to the scenario where the wall thickness of the vehicle structure is thin, and if the wall thickness is thin, the depth of the positioning pins 12 inserted into the vehicle structure 13 is limited and it is difficult to stably hold the flange member 10. Referring to Figure 2A and Figure 2B , Figure 2A and Figure 2B The flange member 20 in can be held on the vehicle structure 23 through the combination of three positioning pins 21 and one positioning hook 22. However, the positioning hook 22 also cannot be applied to the scenario where the wall thickness of the vehicle structure is thin, and if the wall thickness is thin, the spacing between the hook portion and the root portion of the positioning hook 22 will be small, causing the positioning hook 22 to be difficult to manufacture, especially difficult to manufacture by injection molding; moreover, the combination use of multiple positioning pins 21 and the positioning hook 22 can cause over-constraint, in other words, can cause assembly difficulties due to manufacturing errors. SUMMARY

[0004] The purpose of the present application is to solve the above-mentioned problems in the prior art, and to propose an improved flange member with a pre-holding structure.

[0005] To this end, the first aspect of the present application provides a flange member adapted to be mounted to a load bearing structure having a mounting hole, the flange member comprising a base plate and a fitting portion extending from the base plate and adapted to be fitted in the mounting hole; wherein the fitting portion comprises a plurality of retaining ribs, each of the plurality of retaining ribs having a retaining edge adapted to face an inner edge of the mounting hole; wherein the plurality of retaining ribs comprises at least two first retaining ribs and at least two second retaining ribs, the fitting portion being adapted to be interference fit with the mounting hole at the at least two first retaining ribs, and the fitting portion being adapted to be clearance fit with the mounting hole at the at least two second retaining ribs; wherein at least a portion of each of the at least two first retaining ribs comprising the retaining edge is configured to taper in a direction towards the inner edge of the mounting hole.

[0006] For the above flange member, during the process of fitting the fitting portion in the mounting hole, the portion of the fitting portion comprising the second retaining ribs that is capable of clearance fit with the mounting hole can be relatively easily inserted into the mounting hole and can play a certain guiding role; at the same time, the tapered configuration of the first retaining ribs of the fitting portion makes the retaining edge of the first retaining ribs be able to adaptively deform to a certain extent during the fitting process, so that the portion of the fitting portion comprising the first retaining ribs can be inserted into the mounting hole, reducing the fitting force required for fitting the fitting portion in the mounting hole. After the fitting portion is fitted in the mounting hole, the interference fit of the portion of the fitting portion comprising the first retaining ribs with the mounting hole helps the fitting portion to be stably retained in the mounting hole. On this basis, in combination with the clearance fit of the portion of the fitting portion comprising the second retaining ribs with the mounting hole, the rotation or deflection of the fitting portion relative to the mounting hole can be further prevented, especially for the case that the mounting hole is a non-circular hole. In this way, through the first retaining ribs and the second retaining ribs, the flange member can be stably pre-retained on the load bearing structure to be further fixed on the load bearing structure by, for example, threaded fasteners subsequently, which is conducive to improving the assembly efficiency and realizing automatic assembly.

[0007] According to the above technical concept, the present application can further comprise any one or more of the following optional forms.

[0008] In some optional forms, the plurality of retaining ribs extend parallel to an axial direction of the mounting hole.

[0009] In some optional forms, the fitting portion comprises a first tubular portion and a second tubular portion extending perpendicularly to the base plate and penetrating through the base plate, the at least two first retaining ribs are arranged at an outer periphery of the first tubular portion and extend parallel to an axial direction of the first tubular portion, and the at least two second retaining ribs are arranged at an outer periphery of the second tubular portion and extend parallel to an axial direction of the second tubular portion.

[0010] In some alternative forms, the plurality of retaining ribs extend from the substrate perpendicular to the substrate.

[0011] In some alternative forms, the plurality of retaining ribs includes two first retaining ribs arranged symmetrically and two second retaining ribs arranged symmetrically.

[0012] In some alternative forms, the inner edge of the mounting hole includes a first edge segment and a second edge segment that are parallel to each other, wherein the two first retaining ribs are adapted to face the first edge segment and the second edge segment, respectively, and the two second retaining ribs are adapted to face the first edge segment and the second edge segment, respectively.

[0013] In some alternative forms, the first distance between the retaining edges of the two first retaining ribs has a first actual size D1, and the second distance between the retaining edges of the two second retaining ribs has a second actual size D2, wherein the third distance between the first edge segment and the second edge segment of the mounting hole has a basic size d and a maximum limiting size d. max and minimum limiting size d min ;in,

[0014] d max ≤D1 <d max +0.5(d max -d);

[0015] d min -0.5(dd min ) <D2≤d min .

[0016] In some alternative forms, at least a portion of the first retaining rib has a generally triangular cross-section.

[0017] In some alternative forms, at least a portion of the first retaining rib has a corner including the retaining edge, the angle of which is in the range of 2° to 45°.

[0018] In some alternative forms, at least a portion of the retaining edge of each of the plurality of retaining ribs tapers toward the inner edge of the mounting hole.

[0019] A second aspect of the invention provides a vehicle comprising a flange member according to a first aspect of the invention and a load-bearing structure having mounting holes, the flange member being mounted to the load-bearing structure.

[0020] The flange member and the vehicle including the flange member according to the invention enable the flange member to be securely pre-held on the load-bearing structure by means of a first retaining rib and a second retaining rib, so that the flange member can be further secured to the load-bearing structure subsequently, for example by means of threaded fasteners, which is beneficial to improving assembly efficiency and realizing automated assembly. Attached Figure Description

[0021] Other features and advantages of the invention will be better understood through the following detailed description of optional embodiments in conjunction with the accompanying drawings, in which the same reference numerals identify the same or similar parts, wherein:

[0022] Figure 1A A schematic diagram of a flange component with a pre-retaining structure in the prior art is shown;

[0023] Figure 1B It shows Figure 1A A cross-sectional schematic diagram showing the flange component being pre-attached to the vehicle structure.

[0024] Figure 2A A schematic diagram of another flange component with a pre-retaining structure in the prior art is shown;

[0025] Figure 2B It shows Figure 2A A cross-sectional schematic diagram showing the flange component being pre-attached to the vehicle structure.

[0026] Figure 3A and Figure 3B Schematic diagrams of a flange member with a pre-holding structure according to an exemplary embodiment of the present invention are shown from different angles.

[0027] Figure 4 It shows Figure 3A A bottom view of the flange component;

[0028] Figure 5 It shows a load-bearing capacity. Figure 3A A partial schematic diagram of the load-bearing structure of the flange component;

[0029] Figure 6A A schematic diagram of a flange member having a pre-retaining structure according to another exemplary embodiment of the present invention is shown;

[0030] Figure 6B and Figure 6C They are shown respectively Figure 6A Cross-sectional views of the flange components pre-held on the load-bearing structure, cut along different planes; and

[0031] Figures 7A-7D Cross-sectional views of retaining ribs of flange members with pre-retaining structures according to further exemplary embodiments of the present invention are shown. DETAILED DESCRIPTION

[0032] The implementation and use of the embodiments will now be discussed in detail with reference to the figures. It should be appreciated that the specific embodiments discussed are merely illustrative of specific ways to implement and use the application and do not limit the scope of the application. In describing the various components, positional descriptions such as upper, lower, top, bottom, etc. are relative and not absolute. These positional descriptions are appropriate when the various components are arranged as shown in the figures, but change when the position of the various components in the figures is changed.

[0033] In the present application, the axial direction of a tubular or ring-shaped component refers to the direction of the central axis of the component, the circumferential direction of the tubular or ring-shaped component refers to the direction along the circumference of the component, and the radial direction of the tubular or ring-shaped component refers to the direction passing through the central axis of the component and perpendicular to the axial direction of the component.

[0034] The terms "first", "second", and the like, are used only to describe the purpose and are not to be interpreted as indicating or implying relative importance or a specific number of the technical features indicated. In the present application, unless explicitly specified otherwise, the terms "mounting", "connecting", "connecting", "fixing", and the like, should be interpreted broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] Figures 3A-6C A flange member 100 having a pre-holding structure and a bearing structure 200 for bearing the flange member 100 according to an exemplary embodiment of the present application are shown. The flange member 100 can include a plurality of first fastening holes 102, the bearing structure 200 can include a plurality of second fastening holes 202, and the plurality of first fastening holes 102 and the plurality of second fastening holes 202 can be passed through by threaded fasteners such as bolts, studs, screws, etc., so that the flange member 100 can be fixed on the bearing structure 200 by threaded connection.

[0036] Reference Figures 3A-5The flange member 100 is adapted to be mounted to the load bearing structure 200. The flange member 100 can be made of plastic, and optionally, the flange member 100 can be injection molded. The flange member 100 includes a base plate 104 and a fitting portion 106. The fitting portion 106 extends from the base plate 104, and the fitting portion 106 is adapted to fit in the mounting hole 204 of the load bearing structure 200. The fitting portion 106 includes a plurality of retention ribs 108A, 108B (hereinafter can also be collectively referred to as retention ribs 108), each of the plurality of retention ribs 108A, 108B has a retention edge 110A, 110B (hereinafter can also be collectively referred to as retention edge 110) adapted to face the inner edge 206 of the mounting hole 204. The plurality of retention ribs 108 includes at least two first retention ribs 108A and at least two second retention ribs 108B. The fitting portion 106 is interference fit with the mounting hole 204 at the at least two first retention ribs 108A, and the fitting portion 106 is clearance fit with the mounting hole 204 at the at least two second retention ribs 108B. At least a portion of each of the at least two first retention ribs 108A including the retention edge 110A tapers in a direction towards the inner edge 206 of the mounting hole 204.

[0037] During the process of fitting the fitting portion 106 in the mounting hole 204, the portion of the fitting portion 106 including the second retention ribs 108B that is clearance fit with the mounting hole 204 can be relatively easily inserted into the mounting hole 204, and can play a certain guiding role; at the same time, the tapered structure of the first retention ribs 108A of the fitting portion 106 makes the retention edge 110A of the first retention ribs 108A adaptively deformable during the fitting process, so that the portion of the fitting portion 106 including the first retention ribs 108A can be inserted into the mounting hole 204, reducing the fitting force required for fitting the fitting portion 106 in the mounting hole 204.

[0038] After the fitting portion 106 is fitted in the mounting hole 204, the interference fit of the portion of the fitting portion 106 including the first retention ribs 108A with the mounting hole 204 helps the fitting portion 106 to be stably retained in the mounting hole 204. On this basis, in combination with the clearance fit of the portion of the fitting portion 106 including the second retention ribs 108B with the mounting hole 204, the rotation or deflection of the fitting portion 106 relative to the mounting hole 204 can be further prevented, especially for the case that the mounting hole 204 is a non-circular hole.

[0039] In this way, by the first retaining ribs 108A and the second retaining ribs 108B, the flange member 100 can be stably pre-held on the load bearing structure 200 such that the first fastening holes 102 of the flange member 100 and the second fastening holes 202 of the load bearing structure 200 are kept substantially aligned for subsequent further fixation of the flange member 100 on the load bearing structure 200, for example, by threaded fasteners, without the need for manual adjustment of the relative positions of the first fastening holes 102 of the flange member 100 and the second fastening holes 202 of the load bearing structure 200 when the threaded fasteners are tightened, which is conducive to improving the assembly efficiency and achieving automated assembly.

[0040] With continued reference to Figures 3A-5 In the illustrated embodiment, the load bearing structure 200 can be a battery pack housing of a vehicle. The mounting holes 204 of the battery pack housing 200 can allow the cooling system of the battery pack, for example, the water inlet pipe and the water outlet pipe, to be in fluid communication with the fluid system outside the vehicle battery pack. In the illustrated embodiment, the mounting holes 204 of the battery pack housing 200 have a substantially oblong shape, and the inner edges 206 of the mounting holes 204 have a first edge section 208 and a second edge section 210 which are parallel to each other, and a third edge section 212 and a fourth edge section 214 which are located between the first edge section 208 and the second edge section 210, wherein the first edge section 208 and the second edge section 210 have a substantially straight shape, and the third edge section 212 and the fourth edge section 214 have a substantially circular arc shape. It can be appreciated that in other embodiments, the mounting holes can also have any other suitable shape, such as a circular shape, a square shape, a rectangular shape, an elliptical shape, etc.

[0041] In the illustrated embodiment, the mating portion 106 of the flange member 100 includes a first tubular portion 112 and a second tubular portion 114 which extend perpendicularly to the base plate 104 and penetrate through the base plate 104. Both ends of each of the first tubular portion 112 and the second tubular portion 114 can be connected with fluid pipes by conventional connection joints, in particular quick connection joints, so as to achieve fluid communication between the cooling system inside the battery pack and the fluid system outside the vehicle battery pack. Optionally, the first tubular portion 112 can allow liquid in the cooling system of the battery pack to flow out, and the second tubular portion 114 can allow fluid in the fluid system outside the vehicle battery pack to flow into the cooling system of the battery pack.

[0042] The at least two first retaining ribs 108A are arranged on the outer periphery of the first tubular portion 112 and extend parallel to the axial direction of the first tubular portion 112, i.e., perpendicularly to the base plate 104 or parallel to the axial direction of the mounting hole 204. The at least two second retaining ribs 108B are arranged on the outer periphery of the second tubular portion 114 and extend parallel to the axial direction of the second tubular portion 114, i.e., perpendicularly to the base plate 104 or parallel to the axial direction of the mounting hole 204.

[0043] In the illustrated embodiment, the first holding ribs 108A and the second holding ribs 108B each have a strip shape. At least a portion of the first holding ribs 108A including the holding edges 110A is configured to taper in a radially outward direction. At least a portion of the second holding ribs 108B including the holding edges 110B is configured to taper in a radially outward direction.

[0044] In the illustrated embodiment, two first holding ribs 108A are provided at the outer periphery of the first tubular portion 112, and the two first holding ribs 108A are provided opposite to each other and symmetrically with respect to the axis of the first tubular portion 112. The fitting portion 106 is interference-fitted with the mounting hole 204 at the two first holding ribs 108A, and the holding edges 110A of the two first holding ribs 108A face the first edge section 208 and the second edge section 210, respectively. Two second holding ribs 108B are provided at the outer periphery of the second tubular portion 114, and the two second holding ribs 108B are provided opposite to each other and symmetrically with respect to the axis of the second tubular portion 114. The fitting portion 106 is clearance-fitted with the mounting hole 204 at the two second holding ribs 108B, and the holding edges 110B of the two second holding ribs 108B face the first edge section 208 and the second edge section 210, respectively. A first distance between the holding edges 110A of the two first holding ribs 108A has a first actual size D1, and a second distance between the holding edges 110B of the two second holding ribs 108B has a second actual size D2. Since the mounting hole 204 has a manufacturing tolerance, an actual size of a third distance between the first edge section 208 and the second edge section 210 of the mounting hole 204 can fluctuate within a certain range. Based on the manufacturing tolerance of the mounting hole 204, the third distance has a basic size d, a maximum limit size d max and a minimum limit size d min (maximum limit size d max and minimum limit size d min allowed by the manufacturing tolerance), wherein:

[0045] d max ≤ D1 < d max + 0.5(d max -d);

[0046] d min - 0.5(d-d min )< D2 ≤ d min .

[0047] Thus, even if the size of the mounting hole 204 fluctuates within its tolerance range, the range of D1 can ensure that the two first holding ribs 108A are always interference-fitted with the mounting hole 204, and the range of D2 can ensure that the two second holding ribs 108B are always clearance-fitted with the mounting hole 204. In other words, the fitting portion 106 can be reliably interference-fitted with the mounting hole 204 at the two first holding ribs 108A, and the fitting portion 106 can be reliably clearance-fitted with the mounting hole 204 at the two second holding ribs 108B. maxIn the case where the two first retaining ribs 108A have a tapered structure, a certain deformation (in particular, an elastic deformation) can be adaptively occurred at the retaining edge 110A to allow the fitting portion 106 to be inserted into the mounting hole 204. Even if the size of the mounting hole 204 floats within its tolerance range, the range of D2 can guarantee that the two second retaining ribs 108B are always in a clearance fit with the mounting hole 204, and in the case where D2 is less than d min In the case where the two second retaining ribs 108B have a clearance size between the first edge section 208 and the second edge section 210 within an acceptable range, the fitting portion 106 will not be greatly deflected / rotated within the mounting hole 204, in other words, the first fastening hole 102 of the flange member 100 will not be misaligned with the second fastening hole 202 of the battery pack housing 200 to hinder the insertion of the threaded fastener.

[0048] In the case where the two first retaining ribs 108A have a tapered structure, a certain deformation (in particular, an elastic deformation) can be adaptively occurred at the retaining edge 110A to allow the fitting portion 106 to be inserted into the mounting hole 204. Even if the size of the mounting hole 204 floats within its tolerance range, the range of D2 can guarantee that the two second retaining ribs 108B are always in a clearance fit with the mounting hole 204, and in the case where D2 is less than d Figure 4 In the illustrated embodiment, each of the plurality of retaining ribs 108 (i.e., the two first retaining ribs 108A and the two second retaining ribs 108B) has at least a portion including the retaining edge 110 tapered in a direction toward the inner edge 206 of the mounting hole 204 to guarantee that, in the process of fitting the fitting portion 106 into the mounting hole 204, the fitting portion 106 can be easily inserted into the mounting hole 204 by adaptively deforming at the retaining edge 110 in the case where the retaining rib 108 has mechanical interference with the mounting hole 204. In the illustrated embodiment, each of the plurality of retaining ribs 108 has a substantially triangular cross section and has a corner 111 including the retaining edge 110. Optionally, the angle of the corner 111 is within a range of 5° to 45°.

[0049] It can be understood that the shape of the first retaining rib and the second retaining rib is not limited thereto and can have any other suitable cross-sectional shape. For example, as shown in Figures 7A-7C , a portion of the retaining rib 108 including the retaining edge 110 can have a substantially triangular cross section, and a root portion (e.g., a portion close to the first tubular portion 112 or the second tubular portion 114) of the retaining rib 108 can have a cross section of other shapes; for another example, as shown in Figure 7D , the retaining rib 108 can also have a substantially trapezoidal cross section.

[0050] It can be understood that, due to the clearance fit of the second retaining rib 108B with the mounting hole 204, the second retaining rib 108B itself can be relatively easily inserted into the mounting hole 204 in the process of fitting the fitting portion 106 into the mounting hole 204. Thus, in other embodiments, the second retaining rib can also not have a tapered structure like the first retaining rib.

[0051] Referring to Figure 3A and Figure 3BEach of the plurality of retaining ribs 108 of the flange member 100 may include a guide surface 116 to guide the mating portion 106 into the mounting hole 204. The guide surface 116 may be beveled and inclined relative to the extension direction of the retaining rib 108. The flange member 100 may also include a sealing ring 118 disposed on the base plate 104 around a first tubular portion 112 and a second tubular portion 114 to achieve a sealing fixation or sealing connection between the flange member 100 and the battery pack housing 200. In the illustrated embodiment, the sealing ring 118 also has a generally elongated oval shape.

[0052] Understandable, Figures 3A-4 The construction of the flange member 100 shown is merely illustrative and not limiting. In other embodiments, such as... Figures 6A-6C As shown, the flange member 100 may not have a first tubular portion and a second tubular portion. More specifically, Figures 6A-6C The flange member 100 may include a base plate 104 and a mating portion 106. The mating portion 106 includes only a plurality of retaining ribs 108 extending substantially perpendicularly to the base plate 104. The plurality of retaining ribs 108 includes two symmetrically arranged first retaining ribs 108A and two symmetrically arranged second retaining ribs 108B. The mating portion 106 is interference-fitted with the mounting hole 204 at the two first retaining ribs 108A and clearance-fitted with the mounting hole 204 at the two second retaining ribs 108B, so as to pre-hold the flange member 100 on the support structure 200 when the mating portion 106 is fitted into the mounting hole 204.

[0053] It is understood that although the flange member 100 includes two first retaining ribs 108A and two second retaining ribs 108B in the illustrated embodiment, the flange member may also include other suitable numbers of first retaining ribs and second retaining ribs in other embodiments not shown. In particular, for Figures 6A-6C The retaining rib extends directly from the substrate. The number of the first and second retaining ribs can be flexible. Depending on the size and shape of the mounting hole, the number of each of the first and second retaining ribs can be three, four, five, six, or other suitable numbers.

[0054] It should also be understood that the various components and features described herein may be made of a variety of materials, including but not limited to polymers, rubber, metals, and other suitable materials or combinations thereof known to those skilled in the art. Figures 3A-7D The embodiments shown only illustrate the shape, size, and arrangement of various optional components of the flange member and vehicle according to the invention; however, they are merely illustrative and not limiting. Other shapes, sizes, and arrangements may be adopted without departing from the spirit and scope of the invention.

[0055] The technical contents and technical features of the present application have been disclosed above, however, it can be understood that under the creative thought of the present application, the person skilled in the art can easily make modifications, variations and equivalents of these embodiments according to the disclosed content. For example, the features shown or described as part of one embodiment can be used with another embodiment to produce yet another embodiment. The present disclosure is intended to cover these modifications, variations and equivalents. The description of the above embodiments is exemplary rather than limiting, and the protection scope of the present application is determined by the claims.

Claims

1. A flange member, the flange member (100) being adapted to be mounted to a load bearing structure (200) having a mounting hole (204), characterized in that, The flange member (100) comprises: a base plate (104); and a mating portion (106) extending from the base plate (104) and adapted to fit in the mounting hole (204); wherein the mating portion (106) comprises a plurality of retaining ribs (108), each of the plurality of retaining ribs (108) having a retaining edge (110) adapted to face an inner edge (206) of the mounting hole (204); wherein the plurality of retaining ribs (108) comprises at least two first retaining ribs (108A) and at least two second retaining ribs (108B), the mating portion (106) being adapted to be interference fit with the mounting hole (204) at the at least two first retaining ribs (108A), and the mating portion (106) being adapted to be clearance fit with the mounting hole (204) at the at least two second retaining ribs (108B); wherein at least a portion of each of the at least two first retaining ribs (108A) comprising the retaining edge is tapered in a direction towards the inner edge (206) of the mounting hole (204).

2. The flange member of claim 1, wherein The plurality of retaining ribs (108) extends parallel to an axial direction of the mounting hole (204).

3. The flange member of claim 1, wherein The mating portion (106) comprises a first tubular portion (112) and a second tubular portion (114) extending perpendicular to the base plate (104) and through the base plate (104), the at least two first retaining ribs (108A) are disposed at an outer periphery of the first tubular portion (112) and extend parallel to an axial direction of the first tubular portion (112), and the at least two second retaining ribs (108B) are disposed at an outer periphery of the second tubular portion (114) and extend parallel to an axial direction of the second tubular portion (114).

4. The flange member of claim 1, wherein The plurality of retaining ribs (108) extends perpendicular to the base plate (104) from the base plate (104).

5. The flange member according to any one of claims 1 to 4, characterized in that, The plurality of retaining ribs (108) comprises two first retaining ribs (108A) disposed symmetrically and two second retaining ribs (108B) disposed symmetrically.

6. The flange member of claim 5, wherein The two first retaining ribs (108A) are adapted to face a first edge section (208) and a second edge section (210) of the inner edge (206) of the mounting hole (204) parallel to each other respectively, and the two second retaining ribs (108B) are adapted to face the first edge section (208) and the second edge section (210) respectively.

7. The flange member of claim 6, wherein A first distance between the holding edges of the two first holding ribs (108A) has a first actual size D1, a second distance between the holding edges of the two second holding ribs (108B) has a second actual size D2, wherein a third distance between the first edge section (208) and the second edge section (210) of the mounting hole (204) has a basic size d, a maximum limit size d max and a minimum limit size d min ; wherein, d max ≤D1<d max +0.5(d max -d) d min -0.5(d-d min )<D2≤d min .

8. The flange member according to any one of claims 1 to 4, characterized in that The at least a portion of the first retaining rib (108A) has a substantially triangular cross section.

9. The flange member of claim 8, wherein The at least a portion of the first retaining rib (108A) has a corner portion (111) comprising the retaining edge (110), an angle of the corner portion (111) being in a range of 5° to 45°.

10. The flange member according to any one of claims 1 to 4, characterized in that At least a portion of each of the plurality of retaining ribs (108) comprising the retaining edge (110) is tapered in a direction towards the inner edge (206) of the mounting hole (204).

11. A vehicle characterized by comprising: The vehicle comprises a flange member (100) according to any one of claims 1 to 10 and a load bearing structure (200) having a mounting hole (204), wherein the mating portion (106) of the flange member (100) fits in the mounting hole (204).

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