Roof side beam, swing arm assembly and vehicle

Abstract

The roof side edge beam is used for supporting a top cover of the vehicle and comprises a beam main body, the beam main body defines a buffer cavity, in the width direction of the vehicle, the beam main body is provided with a swing arm via hole with an opening facing the outside of the vehicle, and the swing arm via hole is used for avoiding a vehicle door swing arm; swing arm connecting points are arranged on the surface of the buffering cavity, and air curtain connecting points are arranged on the surface, facing the interior of the automobile, of the beam body. According to the car roof side beam, the swing arm connecting point is arranged in the buffering cavity of the beam body, the air curtain is connected to the surface, facing the interior of the car, of the beam body, interference between the side air curtain and the car door swing arm can be prevented, and the side air curtain and the car door swing arm can work reliably; meanwhile, the vehicle door swing arm utilizes part of the space of the beam main body, the space occupied by the vehicle door swing arm and the beam main body is reduced, and the overall structure of the vehicle is compact.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engineering, and in particular to a roof side beam, a swing arm assembly and a vehicle. Background Art

[0002] Among vehicles, there is a type of vehicle that uses a swing arm to push the door open and close. It is generally used in large vehicles (such as buses and passenger vehicles). In this type of vehicle, the position opposite to the door is a passenger passage, and there is no need to install safety devices such as air curtains. However, when this swing arm structure is applied to small family cars (such as sedans, SUVs, and MPVs), the door will be set opposite to the seat in the car. In order to ensure the safety of passengers, the reasonable space setting between the roof side beam, the swing arm and the air curtain is an urgent problem to be solved. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a roof side beam that can prevent the side air curtain from interfering with the door swing arm, so that the side air curtain and the door swing arm can work reliably, reduce the space occupied by the door swing arm and the beam body as a whole, and make the overall structure of the vehicle more compact.

[0004] The present invention also provides a swing arm assembly having the roof side beam.

[0005] The present invention also provides a vehicle having the swing arm assembly.

[0006] The roof side beam according to the first aspect of the present invention is used to support the roof of the vehicle, including: a beam body, the beam body defines a buffer cavity, in the width direction of the vehicle, the beam body has a swing arm through hole opening toward the outside of the vehicle, the swing arm through hole is used to avoid the door swing arm, a swing arm connection point is provided on the surface of the buffer cavity, and an air curtain connection point is provided on the surface of the beam body facing the inside of the vehicle.

[0007] According to the roof side beam of the present invention, by setting the swing arm connection point in the buffer cavity of the beam body and connecting the air curtain to the surface of the beam body facing the interior of the vehicle, it is possible to prevent the side air curtain from interfering with the door swing arm, so that the side air curtain and the door swing arm can work reliably, and at the same time, the door swing arm can utilize a part of the space of the beam body, reducing the space occupied by the door swing arm and the beam body as a whole, so that the overall structure of the vehicle is more compact.

[0008] According to some embodiments of the present invention, the air curtain connection point is arranged on the surface of the beam body away from the top cover in the height direction of the vehicle; and / or the swing arm connection point is arranged on the surface of the buffer cavity close to the top cover in the height direction of the vehicle.

[0009] According to some embodiments of the present invention, the beam body includes: an inner plate and an outer plate, the outer plate is arranged on the side of the inner plate away from the vehicle cabin, the inner plate and the outer plate jointly define the buffer cavity, the air curtain connection point is provided on the inner plate, and the swing arm connection point is provided on the outer plate.

[0010] In some embodiments of the present invention, the thickness of the outer plate is greater than the thickness of the inner plate.

[0011] In some embodiments of the present invention, the inner panel includes a first plate and a second plate. In the width direction of the vehicle, the first plate is opposite to the swing arm through hole, the second plate is connected to the side of the first plate away from the top cover and extends toward the outside of the vehicle, and the air curtain connection point is provided on the second plate.

[0012] In some embodiments of the present invention, a wiring hole is formed on the first plate, and in the height direction of the vehicle, the wiring hole is spaced apart from a surface of the buffer cavity away from the top cover.

[0013] In some embodiments of the present invention, the outer plate includes a third plate and a fourth plate. In the width direction of the vehicle, a swing arm through hole is opened on the third plate, and the fourth plate is connected to the side of the third plate close to the top cover; a swing arm drive connection point is provided on the surface of the fourth plate facing the buffer cavity, and / or a wiring limiter is provided on the surface of the fourth plate facing the buffer cavity.

[0014] According to some embodiments of the present invention, the roof side beam further includes: a reinforcing beam, which is disposed in the buffer cavity and connected to the beam body, and the swing arm connection point is disposed on the reinforcing beam.

[0015] The swing arm assembly according to the second embodiment of the present invention comprises: a roof side beam according to the first embodiment of the present invention; a door swing arm, which is passed through the buffer cavity and connected to the swing arm connection point, and the door swing arm is used to drive the door to open and close.

[0016] According to the swing arm assembly of the present invention, the above-mentioned roof side beam can prevent the side air curtain from interfering with the door swing arm, so that the side air curtain and the door swing arm can work reliably, reduce the space occupied by the swing arm assembly, make the swing arm assembly more compact, and make the overall structure of the vehicle more compact.

[0017] According to some embodiments of the present invention, the roof side beam further includes: a swing arm driving component, wherein the swing arm driving component is disposed in the buffer cavity and connected to the beam body.

[0018] A vehicle according to an embodiment of a third aspect of the present invention comprises: a swing arm assembly according to an embodiment of the second aspect of the present invention; and a roof supported on the side rails of the roof.

[0019] According to the vehicle of the present invention, the side air curtain and the door swing arm can work reliably through the above-mentioned swing arm assembly, making the overall structure of the vehicle more compact.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a schematic diagram of a swing arm assembly according to some embodiments of the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of another perspective of the swing arm assembly;

[0024] Figure 3 yes Figure 1 A schematic diagram of a partial structure of a swing arm assembly;

[0025] Figure 4 yes Figure 1 A schematic diagram of another part of the structure of the swing arm assembly;

[0026] Figure 5 yes Figure 4 A schematic diagram of another portion of the structure of the swing arm assembly from another perspective.

[0027] Reference numerals:

[0028] 100. Swing arm assembly;

[0029] 10. Roof side beams;

[0030] 1. Beam body; 11. Buffer cavity; 12. Swing arm through hole; 13. Wiring hole; 14. Inner plate; 141. First plate; 142. Second plate; 15. Outer plate; 151. Third plate; 152. Fourth plate;

[0031] 2. Strengthen the beam;

[0032] 31. Door swing arm; 32. Swing arm drive component; 33. Drive pipeline; 34. Wiring limiter;

[0033] 41. Side air curtain; 42. Air curtain limiter. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] The following will describe a roof side rail 10 according to an embodiment of the present invention with reference to the accompanying drawings.

[0036] Reference Figure 1-Figure 5 According to the roof side beam 10 of the first embodiment of the present invention, the roof side beam 10 is used to support the roof of the vehicle. The vehicle may also include at least two body pillars, and the plurality of body pillars are arranged at intervals along the length direction of the vehicle. The roof side beam 10 is connected between two adjacent body pillars. For example, one of the at least two body pillars may be an A-pillar, and the rest of the at least two body pillars may be a B-pillar, a C-pillar or a D-pillar.

[0037] The roof side beam 10 includes: a beam body 1, the beam body 1 defines a buffer cavity 11, in the width direction of the vehicle, the beam body 1 has a swing arm through hole 12 opening toward the outside of the vehicle, the swing arm through hole 12 is used to avoid the door swing arm 31, and a swing arm connection point is provided on the surface of the buffer cavity 11. For example, one end of the door swing arm 31 can be rotatably connected to the swing arm connection point, and the other end of the door swing arm 31 is connected to the door. An air curtain connection point is provided on the surface of the beam body 1 facing the inside of the vehicle. For example, the side air curtain 41 can be connected to the air curtain connection point through an air curtain stopper 42; specifically, the air curtain stopper 42 can be a clamp, a buckle or a fastener.

[0038] When the door needs to be opened, the door swing arm 31 can be driven to rotate toward the position open with the beam body 1, driving the door to move in the direction away from the vehicle body, and at the same time, driving the door to move toward the rear side of the vehicle to open the entrance and exit of the cabin. When the door swing arm 31 is opened to the maximum position, the door is opened. When the door needs to be closed, the door can be pushed forward, or the door swing arm 31 can be driven to rotate toward the position close to the beam body 1, driving the door to move toward the vehicle body, closing the entrance and exit of the cabin, thereby closing the door. By setting the door swing arm 31 to drive the door to open and close, the entrance and exit of the cabin can be opened larger, making it easier for users to enter the cabin through the entrance and exit of the cabin.

[0039] By setting the swing arm connection point in the buffer cavity 11 of the beam body 1, when the door swing arm 31 is connected to the swing arm connection point, the door swing arm 31 can utilize a part of the space of the beam body 1, reducing the space occupied by the door swing arm 31 and the beam body 1 as a whole, making the overall structure of the vehicle more compact.

[0040] By setting the air curtain connection point on the surface of the beam body 1 facing the interior of the vehicle, when the side air curtain 41 is connected to the air curtain connection point, the side air curtain 41 and the door swing arm 31 can be separated by the beam body 1, preventing the side air curtain 41 from interfering with the door swing arm 31, so that the side air curtain 41 can be reliably deployed, effectively ensuring the user's riding safety and improving the safety performance of the vehicle; at the same time, the door swing arm 31 can be reliably swung to ensure that the door can be reliably opened and closed, thereby improving the reliability of the vehicle.

[0041] Reference Figure 2 According to some embodiments of the present invention, the air curtain connection point is set on the surface of the beam body 1 away from the roof in the height direction of the vehicle; that is, the air curtain connection point is set on the surface of the beam body 1 facing the vehicle floor. When the side air curtain 41 is connected to the air curtain connection point, the side air curtain 41 can be located below the beam body 1, so that the beam body 1 can play a certain limiting role on the upward deployment trend of the side air curtain 41, so that the side air curtain 41 can reliably deploy downward, and the side air curtain 41 can reliably deploy to a preset position, thereby effectively ensuring the safety of the user, and the overall structure is simple.

[0042] Reference Figure 5 According to some embodiments of the present invention, the swing arm connection point is disposed on the surface of the buffer chamber 11 close to the top cover in the height direction of the vehicle. This can prevent water from entering the cabin when the seal at the swing arm connection point fails, thereby improving the sealing performance of the vehicle. Moreover, this can prevent the fasteners used to connect the door swing arm 31 and the beam body 1 from passing through the beam body 1 and interfering with the deployment of the side air curtain 41, effectively reducing the probability of the side air curtain 41 being scratched during the deployment process, so that the side air curtain 41 can be reliably deployed downward, and the side air curtain 41 can be reliably deployed to a preset position, thereby effectively ensuring the riding safety of the user.

[0043] Reference Figure 1-Figure 5 According to some embodiments of the present invention, the beam body 1 includes: an inner plate 14 and an outer plate 15, the outer plate 15 is arranged on the side of the inner plate 14 away from the vehicle cabin, the inner plate 14 and the outer plate 15 jointly define a buffer cavity 11, an air curtain connection point is arranged on the inner plate 14, and a swing arm connection point is arranged on the outer plate 15. In this way, the door swing arm 31 can be independently connected to the outer plate 15, and the side air curtain 41 can be independently connected to the inner plate 14. After that, the inner plate 14 and the outer plate 15 are connected together, which is convenient for realizing the connection of the side door swing arm, so that the number of components to be independently connected each time is less, and the assembly process of each independent connection is relatively simple, which effectively reduces the assembly difficulty caused by connecting multiple parts to the beam body 1, and improves the production speed of the vehicle.

[0044] Moreover, the swing arm connection point and the air curtain connection point are respectively arranged on the outer panel 15 and the inner panel 14, so that the inner panel 14 and the outer panel 15 can be set to different thicknesses according to different requirements of the connection strength. For example, the thickness of the outer panel 15 is greater than the thickness of the inner panel 14, or the thickness of the outer panel 15 is set to be less than the thickness of the inner panel 14, or the thickness of the outer panel 15 is set to be equal to the thickness of the inner panel 14, so as to realize the different settings of the inner and outer thicknesses of the beam body 1, so that the beam body 1 can reduce the weight of the beam body 1 as much as possible while ensuring that the structural strength is met.

[0045] Reference Figure 1-Figure 5 In some embodiments of the present invention, the inner plate 14 includes a first plate 141 and a second plate 142. In the width direction of the vehicle, the first plate 141 is opposite to the swing arm through hole 12, and the second plate 142 is connected to the side of the first plate 141 away from the top cover, and the second plate 142 extends toward the outside of the vehicle, and an air curtain connection point is provided on the second plate 142. That is, the air curtain connection point is set on the surface of the beam body 1 facing the vehicle floor, so that the side air curtain 41 can be located below the beam body 1, so that the beam body 1 can play a certain role in limiting the upward unfolding trend of the side air curtain 41, so that the side air curtain 41 can reliably unfold downward, and the side air curtain 41 can reliably unfold to a preset position, thereby effectively ensuring the riding safety of users, and the overall structure is simple.

[0046] Reference Figure 1-Figure 5 In some embodiments of the present invention, the outer plate 15 includes a third plate 151 and a fourth plate 152. In the width direction of the vehicle, the third plate 151 is provided with a swing arm through hole 12, and the fourth plate 152 is connected to the side of the third plate 151 close to the top cover; the fourth plate 152 is provided with a swing arm drive member connection point on the surface facing the buffer cavity 11, for example, the swing arm drive member 32 can be connected to the swing arm drive member connection point. Specifically, the swing arm drive member 32 can be a motor, a cylinder or a hydraulic cylinder.

[0047] When the swing arm driving member 32 is connected to the swing arm driving member connection point, the swing arm driving member 32 is located in the buffer cavity 11, so that the space in the beam body 1 can be effectively utilized, making the overall structure of the swing arm assembly 100 more compact. In addition, the swing arm driving member connection point is set on the fourth plate 152, so that the sealing failure at the swing arm driving member connection point can prevent water from entering the vehicle cabin, thereby improving the sealing performance of the vehicle.

[0048] Moreover, this can prevent the fasteners used to connect the swing arm driving member 32 and the beam body 1 from passing through the beam body 1 and interfering with the deployment of the side air curtain 41, effectively reducing the probability of the side air curtain 41 being scratched during the deployment process, so that the side air curtain 41 can be reliably deployed downward, and the side air curtain 41 can be reliably deployed to a preset position, thereby effectively ensuring the user's riding safety.

[0049] Reference Figure 5 In some embodiments of the present invention, a wiring stopper 34 is provided on the surface of the fourth plate 152 facing the buffer chamber 11. For example, the wiring stopper 34 may be a clamp, a buckle or a fastener. The wiring stopper 34 may be used to limit the arrangement of the drive pipeline 33 of the swing arm driver, so that the drive pipeline 33 is more neat, so that the drive pipeline 33 is closer to the fourth plate 152, and the drive pipeline 33 is prevented from interfering with the door swing arm 31, thereby improving the reliability of the swing arm assembly 100.

[0050] Moreover, this can prevent the wiring limiter 34 from passing through the beam body 1 and interfering with the deployment of the side air curtain 41, effectively reducing the probability of the side air curtain 41 being scratched during the deployment process, so that the side air curtain 41 can be reliably deployed downward, and the side air curtain 41 can be reliably deployed to the preset position, thereby effectively ensuring the user's riding safety.

[0051] Reference Figure 2 and Figure 3 In some embodiments of the present invention, a wiring hole 13 is provided on the first plate 141. In the height direction of the vehicle, the wiring hole 13 is spaced from the surface of the buffer chamber 11 away from the top cover. For example, in the height direction of the vehicle, the lowest point of the wiring hole 13 is not lower than the highest point of the swing arm through hole 12; for example, the driving pipeline 33 of the swing arm driver 32 can be passed through the wiring hole 13. Specifically, when the swing arm driver 32 is a motor, the driving pipeline 33 can be a wiring harness for supplying power to the swing arm driver 32; when the swing arm driver 32 is a cylinder, the driving pipeline 33 can be an air pipe for supplying air to the swing arm driver 32; when the swing arm driver 32 is a hydraulic cylinder, the driving pipeline 33 can be a hydraulic pipe for supplying liquid to the swing arm driver 32. When rainwater drips from the swing arm through hole 12 into the buffer chamber 11, it can prevent rainwater from flowing into the cabin from the wiring hole 13, thereby ensuring the sealing effect of the cabin.

[0052] Reference Figure 5 According to some embodiments of the present invention, the roof side beam 10 further includes: a reinforcing beam 2, which is disposed in the buffer cavity 11 and connected to the beam body 1, and the swing arm connection point is disposed on the reinforcing beam 2. For example, the reinforcing beam 2 can be connected to the fourth plate 152. For example, the reinforcing beam 2 can be a bent plate member, and together with the beam body 1, defines a reinforcing cavity.

[0053] This can improve the structural strength at the swing arm connection point, ensure that the roof side beam 10 has sufficient structural strength to connect to the door swing arm 31, and improve the reliability of the vehicle; moreover, this can avoid setting the thickness of the beam body 1 to be larger, so that the thickness of the beam body 1 can be set to be thinner, thereby reducing the weight of the beam body 1, reducing the weight of the roof side beam 10, and reducing the overall weight of the vehicle.

[0054] Reference Figure 1-Figure 5 The swing arm assembly 100 according to the second embodiment of the present invention comprises: the roof side beam 10 and the door swing arm 31 according to the first embodiment of the present invention, the door swing arm 31 is inserted into the buffer cavity 11, and the door swing arm 31 is connected to the swing arm connection point, and the door swing arm 31 is used to drive the door to open and close. For example, the swing arm assembly 100 may also include a swing arm driving member 32 and a driving pipeline 33, the swing arm driving member 32 is arranged in the buffer cavity 11, and the driving pipeline 33 is inserted into the buffer cavity 11 and the vehicle cabin through the wire hole on the beam body 1.

[0055] According to the swing arm assembly 100 of the present invention, the above-mentioned roof side beam 10 can prevent the side air curtain 41 from interfering with the door swing arm 31, so that the side air curtain 41 and the door swing arm 31 can work reliably, reducing the space occupied by the swing arm assembly 100, making the swing arm assembly 100 more compact, and making the overall structure of the vehicle more compact.

[0056] Reference Figure 2 and Figure 5 According to some embodiments of the present invention, the roof side beam 10 further includes: a swing arm driver 32, the swing arm driver 32 is arranged in the buffer cavity 11, and the swing arm driver 32 is connected to the beam body 1. For example, the swing arm driver 32 can be a motor, a cylinder or a hydraulic cylinder. When the swing arm driver 32 is a motor, the drive pipeline 33 can be a wire harness for supplying power to the swing arm driver 32; when the swing arm driver 32 is a cylinder, the drive pipeline 33 can be an air pipe for supplying air to the swing arm driver 32; when the swing arm driver 32 is a hydraulic cylinder, the drive pipeline 33 can be a hydraulic pipe for supplying liquid to the swing arm driver 32. By arranging the swing arm driver 32 in the buffer cavity 11, the space in the beam body 1 can be effectively utilized, so that the overall structure of the swing arm assembly 100 is relatively compact.

[0057] The vehicle according to the third aspect of the present invention comprises: the swing arm assembly 100 according to the second aspect of the present invention and a roof, the roof being supported on the roof side beam 10. For example, the vehicle may be a car. For example, the roof may include a roof sunroof.

[0058] According to the vehicle of the present invention, through the above-mentioned swing arm assembly 100, the overall structure of the swing arm assembly 100 is relatively reliable and compact, making the overall structure of the vehicle relatively reliable and compact, and can reduce the encroachment of the swing arm assembly 100 on the internal space of the cabin in the width direction of the vehicle, so that the space on the top of the cabin is set larger, meeting the user's demand for the use of a large cabin space.

[0059] Moreover, this allows a larger area of ​​the roof exposed in the cabin. When a skylight is provided on the roof, the area of ​​the skylight can be set larger, meeting the user's needs for a large amount of light entering and the user's needs for a wide field of view through the skylight.

[0060] In the description of the present invention, it is to be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0063] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A roof side beam for supporting a roof of a vehicle, characterized in that: include: A beam body defines a buffer cavity. In the width direction of the vehicle, the beam body has a swing arm through hole opening toward the outside of the vehicle, the swing arm through hole is used to avoid the door swing arm, a swing arm connection point is provided on the surface of the buffer cavity, and an air curtain connection point is provided on the surface of the beam body facing the inside of the vehicle.

2. The roof side rail according to claim 1, characterized in that: The air curtain connection point is arranged on the surface of the beam body facing away from the roof in the height direction of the vehicle; And / or, the swing arm connection point is arranged on the surface of the buffer cavity close to the top cover in the height direction of the vehicle.

3. The roof side rail according to claim 1, characterized in that: The beam body includes: an inner plate and an outer plate. In the width direction of the vehicle, the outer plate is arranged on the side of the inner plate away from the cabin. The inner plate and the outer plate jointly define the buffer cavity. The air curtain connection point is provided on the inner plate, and the swing arm connection point is provided on the outer plate.

4. The roof side rail according to claim 3, characterized in that: The inner plate includes a first plate and a second plate. In the width direction of the vehicle, the first plate is opposite to the swing arm through hole, the second plate is connected to the side of the first plate away from the top cover and extends toward the outside of the vehicle, and the air curtain connection point is provided on the second plate.

5. The roof side rail according to claim 4, characterized in that: A wiring hole is formed on the first plate, and in the height direction of the vehicle, the wiring hole is spaced apart from a surface of the buffer cavity away from the top cover.

6. The roof side rail according to any one of claims 3 to 5, characterized in that: The outer plate includes a third plate and a fourth plate. In the width direction of the vehicle, a swing arm through hole is opened on the third plate, and the fourth plate is connected to a side of the third plate close to the top cover; A swing arm driving component connection point is provided on the surface of the fourth plate facing the buffer cavity, and / or a wiring limiter is provided on the surface of the fourth plate facing the buffer cavity.

7. The roof side rail according to claim 1, characterized in that: Also includes: A reinforcing beam is arranged in the buffer cavity and connected to the beam body, and the swing arm connection point is arranged on the reinforcing beam.

8. A swing arm assembly, characterized in that: include: The roof side rail according to any one of claims 1 to 7; A door swing arm is inserted into the buffer cavity and connected to the swing arm connection point, and the door swing arm is used to drive the door to open and close.

9. The swing arm assembly according to claim 8, characterized in that: Also includes: A swing arm driving component is arranged in the buffer cavity and connected to the beam body.

10. A vehicle, characterized in that: include: The swing arm assembly according to claim 8 or 9; A top cover is supported on the side beams of the roof.

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