A connection assembly, a rail assembly, and a vehicle

Abstract

The application relates to a connecting assembly, a longitudinal beam assembly and a vehicle. The connecting assembly comprises a bracket and a mounting sleeve. The bracket is used for connecting with a longitudinal beam of the vehicle. The mounting sleeve is used for connecting with a subframe of the vehicle. An outer peripheral wall surface of the mounting sleeve has a first flat surface which is abutted against the bracket. When the mounting sleeve rotates in the circumferential direction, the connection between the mounting sleeve and the bracket limits the rotation of the mounting sleeve. Meanwhile, the mounting sleeve is abutted against the bracket through the first flat surface, a limiting matching structure in the circumferential direction of the mounting sleeve is formed, and the rotation of the mounting sleeve is limited. Therefore, the fixing strength of the mounting sleeve in the circumferential direction is enhanced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a connecting component, a longitudinal beam assembly, and a vehicle. Background Technology

[0002] In the vehicle's frame, the subframe is connected to the longitudinal beams via connecting assemblies. Specifically, the connecting assemblies include connecting brackets and mounting sleeves. The mounting sleeves have internal threads, and the subframe is connected to the mounting sleeves via bolts or other connectors. The mounting sleeves are generally cylindrical and are connected to the longitudinal beams via brackets.

[0003] Vibration during vehicle operation causes the existing mounting sleeve to rotate in its circumferential direction, which in turn reduces the stability of the longitudinal beam assembly. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a connecting component, a longitudinal beam assembly, and a vehicle, enhancing the fixing strength of the mounting sleeve in its circumferential direction, thereby improving the stability of the longitudinal beam assembly.

[0005] On one hand, this application provides a connection assembly including a bracket and a mounting sleeve. The bracket is used to connect to the longitudinal beam of a vehicle. The mounting sleeve is used to connect to the subframe of the vehicle, and the outer peripheral wall of the mounting sleeve has a first flat surface that abuts against the bracket.

[0006] In one embodiment of this application, the outer peripheral wall surface of the mounting sleeve also has a second flat surface, which is located on the side adjacent to the first flat surface in the circumferential direction of the mounting sleeve. The second flat surface intersects with the first flat surface and abuts against the bracket.

[0007] In one embodiment of this application, the support includes a first sub-support and a second sub-support, the first sub-support abutting against a first flat surface and the second sub-support abutting against a second flat surface.

[0008] In one embodiment of this application, the first sub-support has a reinforcing rib, and the first flat surface abuts against the reinforcing rib.

[0009] In one embodiment of this application, the first sub-support includes a first substrate, and a reinforcing rib protrudes from the first substrate. The reinforcing rib has an end face on the side away from the first substrate in the protruding direction, and the end face abuts against the first flat surface.

[0010] In one embodiment of this application, the longitudinal beam includes a side plate, an upper plate, and a lower plate that together form a hollow structure. A first sub-support is used to connect to the upper plate and the lower plate respectively, and a second sub-support is used to connect to the side plate, the upper plate, and the lower plate respectively.

[0011] In one embodiment of this application, the second sub-support is provided with a first flange and a second flange, the first flange being used to connect with the upper plate, and the second flange being used to be clamped between the side plate and the lower plate.

[0012] In one embodiment of this application, the connecting assembly further includes a reinforcing member, the mounting sleeve has an axial direction, the reinforcing member is disposed axially between the longitudinal beam and the mounting sleeve, with the axial direction as the projection direction, the projection of the mounting sleeve is located within the projection of the reinforcing member.

[0013] On the other hand, embodiments of this application also provide a longitudinal beam assembly, which includes the aforementioned connecting components.

[0014] On the other hand, this application also provides a vehicle, which includes a body and the aforementioned longitudinal beam assembly.

[0015] The technical solution described in this application has the following advantages over the prior art:

[0016] In this application, the mounting sleeve is connected to the bracket, and the outer peripheral wall of the mounting sleeve has a first flat surface. The mounting sleeve abuts against the bracket through the first flat surface, and a limiting fit structure is formed between the mounting sleeve and the bracket in the circumferential direction. When the mounting sleeve rotates in its circumferential direction, the connection between the mounting sleeve and the bracket restricts the rotation of the mounting sleeve. At the same time, the limiting fit structure formed between the bracket and the mounting sleeve restricts the rotation of the mounting sleeve. Therefore, this application adds a limiting fit structure in the circumferential direction of the mounting sleeve, thereby enhancing the fixing strength of the mounting sleeve in its circumferential direction and improving the stability of the longitudinal beam assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional exploded view of a longitudinal beam assembly according to an embodiment of this application;

[0019] Figure 2 yes Figure 1 A magnified view of partial view A in the middle;

[0020] Figure 3 yes Figure 1 The top view of the longitudinal beam assembly in its service state is shown only partially, and only the lower plate of the longitudinal beam is shown.

[0021] Figure 4 yes Figure 1 Sectional view of E1-E1, Figure 4The longitudinal beam assembly is in the assembly stage;

[0022] Figure 5 yes Figure 1 A three-dimensional structural schematic diagram of the sleeve installed in the longitudinal beam assembly shown;

[0023] Figure 6 yes Figure 1 The diagram shows a 3D exploded view of the longitudinal beam assembly from another perspective, showing only a portion, with further breakdown of the support structure.

[0024] Figure 7 yes Figure 1 The diagram shows a three-dimensional cross-sectional view of the longitudinal beam assembly, with only the lower plate visible in the longitudinal beam.

[0025] Figure 8 yes Figure 1 A three-dimensional structural schematic diagram of the first sub-support in the longitudinal beam assembly shown;

[0026] Figure 9 yes Figure 8 The front view of the first sub-bracket shown;

[0027] Figure 10 yes Figure 8 Side view of the first sub-bracket shown;

[0028] Figure 11 yes Figure 1 A three-dimensional structural schematic diagram of the second sub-support in the longitudinal beam assembly shown.

[0029] Explanation of reference numerals in the accompanying drawings: 1-Longitudinal beam assembly; 10-Longitudinal beam; 110-Lower plate; 111-First through hole; 120-Upper plate; 130-Side plate; 150-Cavity; 20-First sub-support; 211-First base plate; 212-Reinforcing rib; 213-End face; 30-Mounting sleeve; 310-Main body; 311-First flat surface; 312-Second flat surface; 313-Third flat surface; 314-Fourth flat surface; 320-Internal threaded hole; 330-End; 40-Second sub-support; 411-Second base plate; 412-First flange; 413-Second flange; 50-Reinforcing member; 511-Second through hole; 60-Support; X-Longitudinal; Y-Transverse; Z-Vertical; D1-Circumferential; D2-Axial. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, and the positive direction of the X-axis in the attached drawings is the rearward direction; the left-right direction refers to the lateral direction of the vehicle, and the positive direction of the Y-axis in the attached drawings is the lateral direction pointing inward to the inside of the vehicle; the up-down direction refers to the vertical direction of the vehicle, and the positive direction of the Z-axis in the attached drawings is the upward direction.

[0032] In a vehicle's frame, the subframe is connected to the longitudinal beams via a connecting assembly. The connecting assembly includes a bracket and a mounting sleeve. The mounting sleeve has internal threads, and the subframe is connected to the mounting sleeve via bolts or other connectors. The mounting sleeve is fixed to the longitudinal beams by the bracket. In the prior art, the mounting sleeve is generally cylindrical, fitting against the bracket through its outer peripheral wall, and welded together at the joint between the mounting sleeve and the bracket. With vibrations during vehicle operation, the mounting sleeve tends to rotate circumferentially. Currently, rotation of the mounting sleeve relative to the bracket can only be restricted at the welded joint; the circumferential fixing strength of the mounting sleeve needs to be strengthened to improve the stability of the subframe and longitudinal beam assembly.

[0033] Please see Figures 1 to 3 . Figure 1 This is a three-dimensional exploded view of the longitudinal beam assembly 1 according to an embodiment of this application. Figure 2 yes Figure 1 Enlarged view of partial view A in the middle. Figure 3 yes Figure 1 The top view of the longitudinal beam assembly 1 in its service state is shown only partially, and only the lower plate 110 is shown in the longitudinal beam 10.

[0034] This application provides a connecting assembly for connecting a subframe (not shown) to a longitudinal beam 10.

[0035] The connecting assembly includes a bracket 60 and a mounting sleeve 30. The bracket 60 is used to connect to the longitudinal beam 10 of the vehicle. The mounting sleeve 30 is used to connect to the subframe of the vehicle, and the outer peripheral wall of the mounting sleeve 30 has a first flat surface 311, which abuts against the bracket 60.

[0036] Please refer to the following: Figure 4 . Figure 4 yes Figure 1 Sectional view of E1-E1, showing longitudinal beam assembly 1 in the assembled state.

[0037] The longitudinal beam 10 generally extends longitudinally along the X direction and has a hollow structure with a cavity 150. The connecting assembly is housed inside the longitudinal beam 10. In the illustrated embodiment, the mounting sleeve 30 has an internally threaded hole 320, the axis of which is parallel to the vertical Z direction. The axis of the mounting sleeve 30 is also the axis of the internally threaded hole 320. The longitudinal beam 10 is provided with a first through hole 111. The first through hole 111 and the internally threaded hole 320 are positioned opposite each other in the vertical Z direction. When assembling the subframe, one end of a bolt (not shown) that is compatible with the internally threaded hole 320 passes through the first through hole 111, extends into the longitudinal beam 10, and engages with the mounting sleeve 30 through the internally threaded hole 320, thereby locking the subframe to the longitudinal beam 10.

[0038] The mounting sleeve 30 has radial, axial, and circumferential directions (D2 and D1). The radial direction of the mounting sleeve 30 is the same as the radial direction of the internal threaded hole 320, the axial direction of the mounting sleeve 30 is the same as the axial direction of the internal threaded hole 320, and the circumferential direction of the mounting sleeve 30 is the same as the circumferential direction of the internal threaded hole 320. The circumferential direction D1 of the mounting sleeve 30 can also be understood as the direction around the axis L of the mounting sleeve 30.

[0039] A flat surface is a smooth, two-dimensional surface without any curves or undulations. A cylindrical surface is a curved surface formed by rotating a straight line around another straight line parallel to it. Although a cylindrical surface may appear somewhat "flat" in some directions, such as along the generatrix of the cylinder, it is curved overall and strictly speaking, and does not meet the definition of a flat surface, i.e., it does not have any curves or curvature. Therefore, a cylindrical surface is not a flat surface.

[0040] This application embodiment has multiple flat surfaces, therefore, they are distinguished by "first" and "second".

[0041] The first flat surface 311 is located radially outward of the mounting sleeve 30. In the illustrated embodiment, the first flat surface 311 is parallel to the axis L of the mounting sleeve 30. In other embodiments, the first flat surface 311 may also be inclined relative to the axis L of the mounting sleeve 30.

[0042] The first flat surface 311 intersects the circumferential direction D1 of the mounting sleeve 30; therefore, the bracket 60 can prevent the mounting sleeve 30 from moving in the circumferential direction D1. Alternatively, if the contact surface between the mounting sleeve 30 and the bracket 60 does not intersect (is parallel to) the circumferential direction D1 of the mounting sleeve 30, then the bracket 60 cannot prevent the mounting sleeve 30 from moving in the circumferential direction D1. The surfaces that do not intersect the circumferential direction D1 of the mounting sleeve 30 include cylindrical surfaces surrounding the axis L of the mounting sleeve 30 and planes perpendicular to the axis L of the mounting sleeve 30.

[0043] The contact structure between the first flat surface 311 and the bracket 60 is equivalent to setting a physical obstacle on the circumferential direction D1 of the mounting sleeve 30, preventing the mounting sleeve 30 from rotating around its axis L. Because for the mounting sleeve 30 to rotate in the circumferential direction D1, it must push against the bracket 60 on the circumferential direction D1 via the first flat surface 311. Since the bracket 60 is fixed to the longitudinal beam 10, the bracket 60 constrains the mounting sleeve 30 in the circumferential direction D1. This constraint hinders the rotation of the mounting sleeve 30, thereby limiting its position in the circumferential direction D1.

[0044] In this application, the mounting sleeve 30 is connected to the bracket 60. The outer peripheral wall of the mounting sleeve 30 has a first flat surface 311. The mounting sleeve 30 abuts against the bracket 60 through the first flat surface 311. A limiting fit structure is formed between the mounting sleeve 30 and the bracket 60 in the circumferential direction D1. When the mounting sleeve 30 rotates in its circumferential direction D1, the connection between the mounting sleeve 30 and the bracket 60 restricts the rotation of the mounting sleeve 30. Simultaneously, the bracket 60 blocks the mounting sleeve 30 in the circumferential direction D1, further restricting its rotation. Compared to the prior art, the connection assembly adds a limiting structure in the circumferential direction D1, thereby enhancing the fixing strength of the mounting sleeve 30 in that direction.

[0045] Please continue reading. Figure 3 In some embodiments, the outer peripheral wall of the mounting sleeve 30 further has a second flat surface 312, which is located on the side adjacent to the first flat surface 311 on the circumferential direction D1 of the mounting sleeve 30. The second flat surface 312 intersects with the first flat surface 311 and abuts against the bracket 60.

[0046] Specifically, the first flat surface 311 is located on one side of the mounting sleeve 30 in the transverse Y direction of the vehicle, and the second flat surface 312 is located on one side of the mounting sleeve 30 in the longitudinal X direction of the vehicle.

[0047] On the one hand, by setting the second flat surface 312, the limiting mating surface between the mounting sleeve 30 and the bracket 60 can be further increased, thereby improving the limiting mating effect; on the other hand, the first flat surface 311 and the second flat surface 312 can also serve as the assembly reference surface of the mounting sleeve 30, so that the mounting sleeve 30 can be accurately placed at the predetermined position on the longitudinal beam 10.

[0048] In an assembly scenario, the bracket 60 is first fixedly connected to the longitudinal beam 10, and then the first flat surface 311 and the second flat surface 312 of the mounting sleeve 30 are respectively abutted against the bracket 60. The positional accuracy of the mounting sleeve 30 in the circumferential direction D1, as well as the positional accuracy in the plane (horizontal plane) perpendicular to its axis, can be guaranteed.

[0049] Please continue reading. Figure 3In some embodiments, the outer peripheral wall of the mounting sleeve 30 further has a third flat surface 313 and a fourth flat surface 314. The first flat surface 311 and the third flat surface 313 are located on opposite sides of the mounting sleeve 30. The second flat surface 312 and the fourth flat surface 314 are located on opposite sides of the mounting sleeve 30. The first flat surface 311 is connected to the second flat surface 312 and the fourth flat surface 314 respectively, and the connection is rounded. The third flat surface 313 is connected to the second flat surface 312 and the fourth flat surface 314 respectively, and the connection is rounded. Taking a plane perpendicular to the axis of the mounting sleeve 30 as the cutting plane, the outer contour of the cross-section of the mounting sleeve 30 is generally square.

[0050] With this configuration, there is no need to specifically distinguish between the first flat surface 311 and the second flat surface 312 during the assembly process, which can improve assembly efficiency.

[0051] Please see Figure 5 . Figure 5 yes Figure 1 The diagram shows a three-dimensional structural schematic of the sleeve 30 installed in the longitudinal beam assembly 1.

[0052] In some embodiments, the mounting sleeve 30 includes a main body 310 and an end portion 330. The main body 310 is generally cubic in shape. A first flat surface 311, a second flat surface 312, a third flat surface 313, and a fourth flat surface 314 are respectively provided on the main body 310. An internal threaded hole 320 is formed in the main body 310. The end portion 330 is located at one end of the main body 310 and extends radially outward along the main body 310. The end portion 330 is circumferentially disposed around the main body 310.

[0053] The specific structure of the sleeve 30 in the illustrated embodiment is only an example, and other reasonable structures can also be used in other embodiments.

[0054] Please see Figure 6 and Figure 7 . Figure 6 yes Figure 1 The following is a three-dimensional exploded view of the longitudinal beam assembly 1 from another perspective, showing only a portion, and further decomposing the bracket 60. Figure 7 yes Figure 1 The three-dimensional cross-sectional view of the longitudinal beam assembly 1 is shown, with only the lower plate 110 shown in the longitudinal beam 10.

[0055] In some embodiments, the bracket 60 includes a first sub-bracket 20 and a second sub-bracket 40, the first sub-bracket 20 abutting against a first flat surface 311 and the second sub-bracket 40 abutting against a second flat surface 312.

[0056] The first sub-support 20 and the second sub-support 40 are physically independent of each other. The first sub-support 20 is connected to both the longitudinal beam 10 and the mounting sleeve 30. The second sub-support 40 is connected to both the longitudinal beam 10 and the mounting sleeve 30.

[0057] If the bracket 60 adopts a one-piece structure, its dimensional and positional tolerance requirements are relatively high. In this application, the bracket 60 adopts a split structure, which is more convenient for manufacturing and assembly.

[0058] Please see Figures 7 to 10 . Figure 8 , Figure 9 and Figure 10 These are a three-dimensional structural schematic diagram, a front view, and a side view of the first sub-support 20.

[0059] In some embodiments, the first sub-support 20 has a reinforcing rib 212, and the first flat surface 311 abuts against the reinforcing rib 212.

[0060] Specifically, the first sub-support 20 includes a first substrate 211 and a reinforcing rib 212.

[0061] The first substrate 211 is bent to match the shape of the inner wall surface of the longitudinal beam 10, thereby fitting against the inner wall surface of the longitudinal beam 10 and connecting with the longitudinal beam 10. This arrangement increases the contact area, thereby improving the connection strength.

[0062] A reinforcing rib 212 protrudes from the first substrate 211. The reinforcing rib 212 has an end face 213 on the side facing away from the first substrate 211 in the protrusion direction, and the end face 213 abuts against the first flat surface 311. In the illustrated embodiment, the reinforcing rib 212 protrudes outward from the first substrate 211 in the transverse Y direction.

[0063] In some embodiments, the mounting sleeve 30 and the reinforcing rib 212 are welded together at the joint. In one manufacturing scenario, the first sub-support 20 is integrally formed by a stamping process.

[0064] On the one hand, the structural strength of the first sub-support 20 can be enhanced by setting the reinforcing rib 212. On the other hand, the protrusion height of the reinforcing rib 212 can be adjusted relatively easily by the stamping process, thereby making it easier to adjust the position of the mounting sleeve 30.

[0065] Please see Figure 4 In some embodiments, the longitudinal beam 10 includes a side plate 130, an upper plate 120, and a lower plate 110 that together form a hollow structure. A first sub-support 20 is used to connect to the upper plate 120 and the lower plate 110 respectively, and a second sub-support 40 is used to connect to the side plate 130, the upper plate 120, and the lower plate 110 respectively.

[0066] Specifically, the upper plate 120 and the lower plate 110 are joined vertically in the Z direction to form a groove-shaped structure, and the groove opening is open outward in the Y direction. The side plate 130 is joined to the upper plate 120 and the lower plate 110 in the Y direction to cover the groove opening, so that the side plate 130, the upper plate 120 and the lower plate 110 together form a hollow structure.

[0067] The first sub-support 20 (first base plate 211) is attached to and connected to the inner wall surfaces of the upper plate 120 and the lower plate 110, respectively. On the one hand, the first sub-support 20 can increase the overall structural strength of the longitudinal beam 10; on the other hand, the first sub-support 20 can improve the connection strength between the upper plate 120 and the lower plate 110.

[0068] Please refer to the following: Figure 11 . Figure 11 yes Figure 1 A three-dimensional structural schematic diagram of the second sub-support 40 in the longitudinal beam assembly 1 shown.

[0069] In some embodiments, the second sub-support 40 is provided with a first flange 412 and a second flange 413. The first flange 412 is used to connect with the upper plate 120, and the second flange 413 is used to be sandwiched between the side plate 130 and the lower plate 110.

[0070] Specifically, the second sub-support 40 includes a second substrate 411, a first flange 412, and a second flange 413. The second substrate 411 abuts against the second flat surface 312 and is connected to the mounting sleeve 30. In some embodiments, the mounting sleeve 30 and the second substrate 411 are welded together at the joint. The first flange 412 is connected to the top edge of the second substrate 411 in the vertical Z direction and is angled to the second substrate 411. The first flange 412 is abutted against the inner wall surface of the upper plate 120 and is connected to the upper plate 120. The second flange 413 is connected to the outer edge of the second substrate 411 in the horizontal Y direction and is angled to the second substrate 411. The bottom end of the second flange 413 in the vertical Z direction is sandwiched between the side plate 130 and the lower plate 110 in the horizontal Y direction. The second flange 413 is connected to the side plate 130 and the lower plate 110 respectively, for example, by welding.

[0071] In some embodiments, the first flange 412 and the second flange 413 are integrated, thereby improving the structural strength of the second sub-support 40 in the vertical Z direction.

[0072] In a manufacturing scenario, the second sub-support 40 is integrally formed by a stamping process.

[0073] In this embodiment, the structure of the second sub-support 40 and the connection method between the second sub-support 40 and the longitudinal beam 10 have the following advantages: on the one hand, the second sub-support 40 can strengthen the overall structural strength of the longitudinal beam 10 and improve the connection strength of the side plate 130, the upper plate 120 and the lower plate 110; on the other hand, it can improve the connection strength between the second sub-support 40 and the longitudinal beam 10, thereby improving the fixing strength of the mounting sleeve 30.

[0074] Please see Figure 2 and Figure 4 .

[0075] In some embodiments, the connecting assembly further includes a reinforcing member 50. The mounting sleeve 30 has an axial direction D2, and the reinforcing member 50 is disposed on the axial direction D2 between the longitudinal beam 10 and the mounting sleeve 30, with the axial direction D2 as the projection direction, and the projection of the mounting sleeve 30 is located within the projection of the reinforcing member 50.

[0076] In the illustrated embodiment, the axial direction D2 is parallel to the vertical direction Z.

[0077] The reinforcing member 50 has a second through hole 511. The second through hole 511 is aligned with the internal threaded hole 320. One end of a bolt adapted to the internal threaded hole 320 passes through the second through hole 511 and engages with the internal thread. The mounting sleeve 30 is connected to the reinforcing member 50, and the reinforcing member 50 is connected to the longitudinal beam 10.

[0078] In the radial direction of the mounting sleeve 30, the size of the reinforcing member 50 is larger than that of the mounting sleeve 30, which can enhance the connection strength between the mounting sleeve 30 and the longitudinal beam 10.

[0079] Please see Figure 1 and Figure 4 This application also provides a longitudinal beam assembly 1, which includes a longitudinal beam 10 and the aforementioned connecting components. The longitudinal beam 10 can be a front longitudinal beam or a rear longitudinal beam of a vehicle. When the longitudinal beam 10 is a front longitudinal beam, the longitudinal beam assembly 1 is a front longitudinal beam assembly. When the longitudinal beam 10 is a rear longitudinal beam, the longitudinal beam assembly 1 is a rear longitudinal beam assembly.

[0080] The longitudinal beam assembly 1 has all the technical features of the connecting component, and therefore also has all the technical effects of the connecting component, which will not be elaborated here.

[0081] On the other hand, this application also provides a vehicle, which includes a body and the aforementioned longitudinal beam assembly.

[0082] Note that the above description is merely a preferred embodiment and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of this application, the scope of which is determined by the scope of the appended claims.

Claims

1. A connection assembly, characterized in that include: A bracket (60) is used to connect to the longitudinal beam (10) of the vehicle; Mounting sleeve (30) for connecting the subframe of the vehicle, the outer peripheral wall of the mounting sleeve (30) having a first flat surface (311) that abuts against the bracket (60).

2. The connection assembly of claim 1, wherein, The outer peripheral wall of the mounting sleeve (30) also has a second flat surface (312), which is located on the side adjacent to the first flat surface (311) in the circumferential direction (D1) of the mounting sleeve (30). The second flat surface (312) intersects with the first flat surface (311) and abuts against the bracket (60).

3. The connection assembly of claim 2, wherein, The bracket (60) includes a first sub-bracket (20) and a second sub-bracket (40), the first sub-bracket (20) abutting against the first flat surface (311), and the second sub-bracket (40) abutting against the second flat surface (312).

4. The connection assembly of claim 3, wherein, The first sub-support (20) has a reinforcing rib (212), and the first flat surface (311) abuts against the reinforcing rib (212).

5. The connecting component according to claim 4, characterized in that, The first sub-support (20) includes a first substrate (211), and the reinforcing rib (212) protrudes from the first substrate (211). The reinforcing rib (212) has an end face (231) on the side away from the first substrate (211) in the protruding direction, and the end face (213) abuts against the first flat surface (311).

6. The connecting component according to claim 3, characterized in that, The longitudinal beam (10) includes a side plate (130), an upper plate (120), and a lower plate (110) that together form a hollow structure. The first sub-support (20) is used to connect to the upper plate (120) and the lower plate (110) respectively, and the second sub-support (40) is used to connect to the side plate (130), the upper plate (120), and the lower plate (110) respectively.

7. The connecting component according to claim 6, characterized in that, The second sub-support (40) is provided with a first flange (412) and a second flange (413). The first flange (412) is used to connect with the upper plate (120), and the second flange (413) is used to be sandwiched between the side plate (130) and the lower plate (110).

8. The connection component according to claim 1, characterized in that, The connecting assembly further includes a reinforcing member (50), the mounting sleeve (30) has an axial direction (D2), the reinforcing member (50) is disposed on the axial direction (D2) between the longitudinal beam (10) and the mounting sleeve (30), with the axial direction (D2) as the projection direction, the projection of the mounting sleeve (30) is located within the projection of the reinforcing member (50).

9. A longitudinal beam assembly, characterized in that, include: The connecting component according to any one of claims 1-8.

10. A vehicle, characterized in that, include: The vehicle body and the longitudinal beam assembly as described in claim 9.

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