Door limit components, door systems and automobiles

Abstract

This utility model provides a door limiting assembly, a door system, and an automobile. The door limiting assembly includes: a T-shaped load-bearing member and a limiting portion, the limiting portion having a limiting hole whose width varies along its length to form a wide portion and a narrow portion; and the T-shaped load-bearing member matching the width of the limiting hole, the T-shaped load-bearing member slidingly engaging with the limiting hole along its length to restrict or release the door, and when the door in the restricted state is subjected to a force applied inward, the T-shaped load-bearing member tends to move toward the narrow portion of the limiting hole.

Description

Technical Field

[0001] This utility model generally relates to the field of vehicle safety technology, and more specifically, to door limiting components, door systems and automobiles. Background Technology

[0002] In the automotive industry, collision safety performance during vehicle operation is a core element in protecting the life and health of drivers and passengers. According to road traffic accident statistics, side-impact collisions account for approximately 20%-30% of all traffic accidents, exhibiting high frequency and severe consequences. Due to the inherent limitations of the vehicle's side structure, compared to the energy-absorbing buffer zones at the front and rear, the side structure has limited protective space and relatively insufficient energy absorption capacity during a collision. This results in occupants facing greater impact forces in side-impact collisions, significantly increasing the risk of injury.

[0003] In existing technologies, door lock hooks, as key components connecting the door to the vehicle body, play a crucial role in maintaining the door securely closed. However, in side-impact collisions, door lock hooks are susceptible to deformation, breakage, or disengagement due to the immense lateral impact force, leading to accidental door opening. Accidental door opening not only removes the protective barrier of the door for occupants but can also cause them to be ejected from the vehicle, exacerbating injuries. Therefore, effectively addressing the potential reliability and stability risks of door lock hooks during side-impact collisions and preventing accidental door opening has become a critical issue urgently needing resolution in the field of automotive passive safety. Utility Model Content

[0004] In view of the above, this utility model provides a door limiting component, a door system, and an automobile. Utilizing this door limiting component, door system, and automobile, when the door is locked, the sliding cooperation between the T-shaped load-bearing member and the limiting hole provided on the limiting part maintains a constant connection between the door and the vehicle body. This allows for the stable distribution of the impact borne by the door lock hook during multi-angle side collisions, reducing door intrusion and protecting occupant safety.

[0005] According to one aspect of the present invention, a door limiting assembly is provided, comprising: a T-shaped load-bearing member and a limiting portion, wherein the limiting portion is provided with a limiting hole, the width of the limiting hole varying along the length direction to form a wide portion and a narrow portion of the limiting hole; and the T-shaped load-bearing member matching the width of the limiting hole, the T-shaped load-bearing member slidingly engaging along the length direction of the limiting hole to limit or release the door, and when the door in the limited state is subjected to a force applied inward, the T-shaped load-bearing member tends to move toward the narrow portion of the limiting hole.

[0006] In some implementations, the wide portion and the narrow portion are located at opposite ends of the limiting hole; or the narrow portion is located at one end of the limiting hole, and the wide portion is located in the middle region of the limiting hole.

[0007] In some implementations, the T-shaped load-bearing component is a bolt.

[0008] In some implementations, the T-shaped load-bearing member is installed on the vehicle door frame, and the limiting part includes a partial reinforcing plate whose shape matches the inner panel of the door, and the partial reinforcing plate is connected to the inner panel of the door.

[0009] In some implementations, the material of the partial reinforcing plate is the same as that of the inner door panel, and the partial reinforcing plate is welded to the inner door panel.

[0010] In some implementations, the T-shaped load-bearing component is a bolt, which is connected to the vehicle body door frame by welding nuts.

[0011] In some implementations, the T-shaped load-bearing member is installed at at least one of the following locations: a position on the B-pillar reinforcement plate that is compatible with the door lock hook; the lower part of the door; and the door anti-collision beam area.

[0012] In some implementations, the T-shaped load-bearing member is installed in the door anti-collision beam area, the T-shaped load-bearing member passes through the inner door panel, and the head of the T-shaped load-bearing member faces inward, and the limiting hole is located in the vehicle body.

[0013] According to another aspect of the present invention, a door system with a door limiting component is provided, comprising: a body door frame; a door movably connected to the body door frame; and the door limiting component as described above, wherein the limiting hole is provided in one of the body door frame and the door, and the T-shaped load-bearing member is installed in the other of the body door frame and the door.

[0014] According to another aspect of the present invention, a car with a door limiting assembly is provided, characterized in that it includes: the door system as described above. Attached Figure Description

[0015] A further understanding of the nature and advantages of this specification can be achieved by referring to the following figures. In the figures, similar components or features may have the same reference numerals.

[0016] Figure 1 A schematic diagram illustrating an example application scenario of a door limiting assembly, a door system, and a vehicle according to embodiments of this specification is shown.

[0017] Figure 2A and Figure 2B A schematic diagram of an example of a door limiting assembly according to an embodiment of this specification is shown.

[0018] Figure 3 A schematic diagram showing an example of a limiting portion in a door limiting assembly according to an embodiment of this specification is provided.

[0019] Figure 4A , Figure 4B , Figure 4C A schematic diagram illustrating an example of the positional relationship between the limiting hole and the T-shaped load-bearing member in a door limiting assembly according to an embodiment of this specification is shown.

[0020] Figure 5A and Figure 5B A schematic diagram showing yet another example of the position of the T-shaped load-bearing member in the door limiting assembly according to an embodiment of this specification.

[0021] Figure 6A and Figure 6B A schematic diagram showing another example of the positional relationship between the limiting hole and the T-shaped load-bearing member in the door limiting assembly according to an embodiment of this specification is provided. Detailed Implementation

[0022] The subject matter described herein will be discussed below with reference to exemplary embodiments. It should be understood that these embodiments are discussed merely to enable those skilled in the art to better understand and implement the subject matter described herein, and are not intended to limit the scope, applicability, or examples set forth in the claims. The function and arrangement of the elements discussed may be changed without departing from the scope of the embodiments described herein. Various processes or components may be omitted, substituted, or added as needed in the various examples. Furthermore, features described in some examples may be combined in other examples.

[0023] As used herein, the term "comprising" and its variations are open terms meaning "including but not limited to". The term "based on" means "at least partially based on". The terms "one embodiment" and "an embodiment" mean "at least one embodiment". The term "another embodiment" means "at least one other embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other definitions, whether explicit or implicit, may be included below. Unless explicitly indicated by the context, the definition of a term shall remain consistent throughout the specification.

[0024] This specification provides embodiments of a door limiting assembly, a door system, and an automobile. Utilizing this door limiting assembly, door system, and automobile, when the door is locked, the sliding engagement between the T-shaped load-bearing member and the limiting hole on the limiting part maintains a constant connection between the door and the vehicle body. This allows for the stable distribution of the impact borne by the door lock hook during multi-angle side collisions, reducing door intrusion and protecting occupant safety.

[0025] The door limiting assembly, door system, and automobile according to embodiments of this specification will now be described in detail with reference to the accompanying drawings.

[0026] Figure 1 A schematic diagram illustrating an example of an application scenario 100 of a door limiting assembly, a door system, and a vehicle according to embodiments of this specification is shown.

[0027] like Figure 1 As shown, the door limiting assembly of this embodiment can be applied to the door system of an automobile to restrict the movement of the door along the width direction of the vehicle. In this embodiment, the door system can separate the interior space and the exterior space of the vehicle. The door latch 110 can be provided on the latch reinforcement plate 120. The door limiting assembly may include a limiting portion 130 with a limiting hole 131 and a T-shaped load-bearing member 140. In some examples, the T-shaped load-bearing member 140 may be mounted on the B-pillar 150, such as on the B-pillar reinforcement plate. In these examples, the limiting portion 130 may be provided on the door accordingly. When the locking hook 110 is in the locked state, if an external impact such as a side collision occurs (e.g., impact force F1), the door will cause the limiting hole 131 to move inward into the vehicle. This allows the limiting component to maintain the locked state through the cooperation between the limiting hole 131 and the T-shaped load-bearing member 140. It can also share the impact from the collision with the door locking hook 110 (e.g., share the impact forces F11 and F12). Therefore, it can effectively restrict the door from moving inward into the vehicle, thereby greatly reducing the occupant safety risk caused by the door locking hook breaking.

[0028] It should be understood that the embodiments in this specification are not limited to the exemplary scenarios described above, but can also be applied to any variation of these exemplary scenarios and any other applicable scenarios.

[0029] Figure 2A and Figure 2B A schematic diagram of an example of a door limiting assembly 200 according to an embodiment of this specification is shown.

[0030] like Figure 2AAs shown, the door limiting assembly 200 may include a limiting portion 130 and a T-shaped support member 140. A limiting hole 131 may be provided on the limiting portion 130. The width of the limiting hole 131 varies along its length to form a wide portion 131-W and a narrow portion 131-N. For example, the limiting hole 131 may be a fish-mouth hole. The T-shaped support member 140 may match the width of the limiting hole 131 provided on the limiting portion 130. The T-shaped support member 140 may slide along the length of the limiting hole to restrict or release the door. In some examples, the T-shaped support member 140 may include a head 141 and a column 142 connected to the head 141. The size of the head 141 can be matched with the width of the limiting hole 131. For example, when the column 142 passes through the limiting hole 131, the size of the head 141 is such that it can pass freely through the limiting hole 131 at the wide part 131-W and get stuck at the narrow part 131-N, unable to exit from the limiting hole 131. In some examples, the T-shaped load-bearing member 140 can slide along the length of the limiting hole 131. For example, at the wide portion 131-W of the limiting hole 131, the head 141, along with a part of the column 142, can pass through the limiting hole 131 from bottom to top. When it continues to slide to the narrow portion 131-N of the limiting hole 131, the head 141 can no longer pass through the limiting hole 131 from top to bottom. At this time, the column 142 passes through the limiting hole 131, forming a restricted state. When the head 141, along with a part of the column 142, slides in the opposite direction to the wide portion 131-W of the limiting hole 131, the head 141 can pass through the limiting hole 131 from top to bottom again, forming a released state.

[0031] Based on the cooperation relationship described above, such as Figure 2B As shown, when the T-shaped load-bearing member 140 is provided in one of the vehicle body door frame and the door, the limiting part 130 is installed in the other of the vehicle body door frame and the door, and the condition is met that when the door in the restricted state is subjected to a force applied inward, the T-shaped load-bearing member 140 tends to move toward the narrow part 131-N of the limiting hole 131, thereby enabling the door to be restricted or unrestricted.

[0032] In some examples, the wide portion 131-W and the narrow portion 131-N of the limiting hole 131 can be located at opposite ends of the limiting hole 131. In some examples, the limiting portion 130 can be an existing structure of the vehicle, meaning it can be shared with existing vehicle structures; for example, the limiting hole 131 can be provided on the B-pillar reinforcement plate. In some examples, the limiting portion 130 can be a separate structure, such as a local reinforcement plate. The local reinforcement plate 130 can be planar or non-planar, for example, it can have a certain curvature. In some examples, such as... Figure 2AAs shown in the limiting part 130 in the form of a partial reinforcing plate, the limiting part 130 can be bent at a certain angle at the wide part 131-W near the limiting hole 131, so as to better cooperate with the head 141 of the T-shaped load-bearing member 140 to smoothly slide into and / or slide out of the limiting hole 131 from the wide part 131-W.

[0033] In some examples, the T-shaped load-bearing member 140 can be a bolt. The T-shaped load-bearing member 140 may also include a nut 143. In some examples, the bolt can be a steel bolt. In some examples, the bolt's strength grade can be 10.9 or 12.9. In these examples, using standard bolts as T-shaped load-bearing members offers better versatility, greater replaceability, and lower cost while meeting strength requirements. It also allows for flexible arrangement based on the structure of the door and body.

[0034] It should be understood that Figure 2A and Figure 2B The various components shown are exemplary, and embodiments of this disclosure will also cover any modifications to the door limiting assembly.

[0035] Figure 3 A schematic diagram 300 shows yet another example of a limiting portion in a door limiting assembly according to an embodiment of this specification.

[0036] like Figure 3 As shown, the narrow portion 131-N can be located at one end of the limiting hole 131 of the limiting portion 130, and the wide portion 131-W can be located in the middle region of the limiting hole 131. That is, the overall distribution of the width of the limiting hole 131 along the length direction can present a "narrow-wide-X" shape. Here, "X" can represent a width similar to the wide portion 131-W, similar to the narrow portion 131-N, or between the wide portion 131-W and the narrow portion 131-N. In some examples, the limiting hole 131 can be symmetrical or asymmetrical along the length direction. In these examples, the curvature of the limiting portion 130 in the form of a local reinforcing plate is specially designed so that the head 141 of the T-shaped load-bearing member 140 can smoothly slide into and / or out of the limiting hole 131 from the wide portion 131-W.

[0037] Figure 4A , Figure 4B , Figure 4C A schematic diagram illustrating an example of the positional relationship between the limiting hole and the T-shaped load-bearing member in a door limiting assembly according to an embodiment of this specification is shown.

[0038] Figure 4A An exemplary front view of the vehicle's door frame, viewed from the side, is shown. Figure 4AAs shown, the T-shaped load-bearing member 140 can be installed on the door frame of the vehicle body. In some examples, the T-shaped load-bearing member 140 can be installed on the B-pillar reinforcement plate. The B-pillar reinforcement plate is typically located within the door frame of the outer B-pillar panel of the B-pillar 150. In some examples, the T-shaped load-bearing member 140 can be installed at a height above the door anti-collision beam 160, below the locking hook 110, and at a predetermined distance from the locking hook 110, so as to better share the potential side impact force with the locking hook 110 and the door anti-collision beam 160.

[0039] Figure 4B and Figure 4C An exemplary schematic diagram is shown, viewed from above the driver's seat inside the vehicle, showing the door. Figure 4B As shown, the T-shaped load-bearing member 140 can be installed in the B-pillar 150 area. In some examples, the T-shaped load-bearing member 140 can be strongly connected to the vehicle body by welding nuts 143 to the B-pillar 150 or the B-pillar reinforcement plate. The limiting part 130 can be a partial reinforcement plate with a shape matching the inner door panel 170 and can be connected to the inner door panel 170. In some examples, the limiting part 130 can be connected to the fitting part 171 between the inner door panel 170 and the vehicle body door frame. In some examples, the x-axis can be used to represent the vehicle length direction, with front to back as the positive direction; the y-axis can be used to represent the vehicle width direction, with the direction from the driver's side to the passenger side as the positive direction; the z-axis can be used to represent the vehicle height direction, with the direction from bottom to top as the positive direction. In some examples, the plane where the fitting part 171 is located can be the yOz plane of the inner door panel 170 or a plane formed by rotating the yOz plane along the y-axis and / or z-axis by a certain angle.

[0040] like Figure 4B and Figure 4C As shown, in this embodiment, the shape of the limiting part 130 can be the same as or similar to the shape of the part installed on the inner door panel 170, so that the limiting part 130 can be fitted to the inner door panel. In this embodiment, the wide portion 131-W of the limiting hole 131 of the limiting part 130 faces inward, and the narrow portion 131-N of the limiting hole 131 of the limiting part 130 faces outward. Thus, with the T-shaped load-bearing member 140 fixedly connected to the vehicle body, when the door is opened to closed, the head 141 of the T-shaped load-bearing member 140 can smoothly slide from the wide portion 131-W into the limiting hole 131 and gradually move towards the narrow portion 131-N; when the door is closed, the head 141 of the T-shaped load-bearing member 140 can be fixed in the narrow portion 131-N area, that is, the door is in a restricted state. In this case, if the door is subjected to a force applied inward (e.g., a side collision), the T-shaped load-bearing member 140 tends to move toward the narrow portion 131-N of the limiting hole 131, that is, it can always maintain the state of limiting the door, thereby sharing the external force (such as the impact from a collision) with the locking hook.

[0041] In some examples, the material of the limiting part 130 can be the same as that of the inner door panel 170, such as steel or aluminum; and it can be welded to the aforementioned fitting part 171. In some examples, the T-shaped load-bearing member 140 can be connected to the vehicle body by welding a nut 143. In some examples, the T-shaped load-bearing member 140 can be a bolt.

[0042] It is understandable that when the car door is opened from closed, the head 141 of the T-shaped load-bearing member 140 can gradually move from the narrow part 131-N to the wide part 131-W and smoothly slide out of the limiting hole 131 from the wide part 131-W, that is, release the restricted state of the car door.

[0043] pass Figures 4A-4C The positional relationship between the limiting hole and the T-shaped load-bearing member in the door limiting assembly provided in the embodiment can make the door limiting assembly as concealed as possible while ensuring strength. This does not hinder the overall aesthetics of the vehicle layout and can also prevent users from being scratched or injured when getting in and out of the vehicle.

[0044] Figure 5A and Figure 5B A schematic diagram showing yet another example of the position of the T-shaped load-bearing member in the door limiting assembly according to an embodiment of this specification.

[0045] Figure 5A An exemplary front view of the driver's side door, seen from inside the vehicle, is shown. Figure 5A As shown, the T-shaped load-bearing member 140 can be installed at the lower end of the door. In some examples, the lower end of the door may be the area where the door overlaps with the sill. In some examples, a mounting plate 180 can be added at the installation location of the T-shaped load-bearing member 140 to ensure the strength of the installation area of ​​the T-shaped load-bearing member 140. In some examples, when the T-shaped load-bearing member 140 is installed at the lower end of the door, there may be more than one, for example, two T-shaped load-bearing members 140 can be installed at certain intervals.

[0046] Figure 5B An exemplary cross-sectional view of the driver's side door, viewed from the front of the vehicle, is shown. Figure 5B As shown, the T-shaped load-bearing member 140 can be installed at the lower end of the door. In some examples, the T-shaped load-bearing member 140 can be strongly connected to the door via a nut 143 welded into the door. In some examples, the nut 143 can be strongly connected to the door via a reinforcing plate mounted on the door. The post 142 of the T-shaped load-bearing member 140 connected to the nut 143 passes through the inner door panel 170, such that the head 141 of the T-shaped load-bearing member 140 faces inward to engage with a limiting hole 131 provided in the body (e.g., door sill 190). Figure 5B(Not shown in the image) Sliding fit to achieve the functions described above. In some examples, the sill 191 can be made of aluminum profile.

[0047] It should be understood that the limiting hole 131 ( Figure 5B (Not shown in the image) The position of the T-shaped support member 140 on the vehicle body can match the position of the T-shaped support member 140, and when the door in the restricted state is subjected to a force applied inward, the T-shaped support member 140 tends to move towards the narrow portion 131-N of the limiting hole 131. In some examples, the width of the limiting hole 131 can be distributed in a "larger at the top and smaller at the bottom" form. When the door in the locked state is impacted by a side collision of the vehicle, the lower part of the door tends to move downward, thereby causing the head 141 of the T-shaped support member 140 to move towards the narrow portion of the limiting hole, ensuring the door is locked.

[0048] Figure 6A and Figure 6B A schematic diagram showing another example of the positional relationship between the limiting hole and the T-shaped load-bearing member in the door limiting assembly according to an embodiment of this specification is provided.

[0049] Figure 6A An exemplary front view of the vehicle's door frame, viewed from the side, is shown. Figure 6A As shown, the T-shaped load-bearing member 140 can be installed in the area of ​​the door anti-collision beam 160. In some examples, the T-shaped load-bearing member 140 can be shared with the connecting bolts of the door anti-collision beam 160.

[0050] Figure 6B An exemplary schematic diagram is shown, viewed from above the driver's seat inside the vehicle, showing the door. Figure 6B As shown, the T-shaped load-bearing member 140 can pass through the door anti-collision beam 160 and the inner door panel 170, forming an overlapping area with the B-pillar 150. At this time, the head 141 of the T-shaped load-bearing member 140 faces inwards to slide and engage with the limiting hole 131 provided on the vehicle body, achieving the function described above. In some examples, the T-shaped load-bearing member 140 can establish a strong connection with the door via a nut 143 connected to the door anti-collision beam 160.

[0051] It should be understood that the position of the limiting hole 131 on the vehicle body can match the position of the T-shaped load-bearing member 140, and satisfies the condition that when the door in the restricted state is subjected to a force applied inward, the T-shaped load-bearing member 140 tends to move towards the narrow portion 131-N of the limiting hole 131. Figure 6B (Not shown in the image) Move.

[0052] use Figures 1-6BThe disclosed door limiting component, when the door is locked, maintains a constant connection between the door and the vehicle body through the sliding engagement between the T-shaped load-bearing member and the limiting hole on the limiting part. This allows for stable distribution of the impact borne by the door lock hook during multi-angle side collisions, reducing door intrusion and protecting occupant safety. Furthermore, the door limiting component using this solution can use a smaller T-shaped load-bearing member, and its installation position can be flexibly selected from multiple locations based on the structural design of the door and vehicle body, resulting in low cost and easy installation.

[0053] According to one embodiment, a door system with a door limiting component is provided, including: a vehicle body door frame; a door movably connected to the vehicle body door frame; and as described above. Figures 1-6B The embodiment describes a door limiting assembly. The limiting hole can be provided in one of the body door frame and the door, and the T-shaped load-bearing member can be installed in the other of the body door frame and the door. The specific fit between the limiting hole and the T-shaped load-bearing member can be referred to as described above. Figures 1-6B The relevant descriptions of the embodiments will not be repeated here.

[0054] According to one embodiment, an automobile with a door limiting assembly is provided, including: a door system as described above.

[0055] It is understood that the above specific description of the door limiting component usually takes one door as an example. Those skilled in the art will understand that the door limiting component can be installed on other doors of the vehicle with reference to the foregoing description.

[0056] The foregoing describes specific embodiments of this specification. Other embodiments are within the scope of the appended claims. Not all units in the above system block diagrams are necessary; some units may be omitted as needed. The device structures described in the above embodiments can be physical or logical structures; that is, some units may be implemented by the same physical entity, or some units may be implemented by multiple physical entities, or they may be jointly implemented by certain components in multiple independent devices.

[0057] The term "exemplary" as used throughout this specification means "serving as an example, instance, or illustration" and does not imply that it is "preferred" or "advantageous" over other embodiments. Detailed descriptions are included for the purpose of providing an understanding of the described techniques. However, these techniques may be practiced without these detailed descriptions. In some instances, well-known structures and apparatuses are shown in block diagram form to avoid obscuring the concepts of the described embodiments.

[0058] The optional embodiments of the present specification have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present specification are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present specification, various simple modifications can be made to the technical solutions of the embodiments of the present specification, and these simple modifications all fall within the protection scope of the embodiments of the present specification.

[0059] The foregoing description of this specification is provided to enable any person skilled in the art to implement or use the content of this specification. Various modifications to the content of this specification will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of protection of this specification. Therefore, this specification is not limited to the examples and designs described herein, but is consistent with the widest scope of the principles and novel features disclosed herein.

Claims

1. A door limiting component, characterized in that, include: T-shaped load-bearing components and limiting parts The limiting portion is provided with a limiting hole, the width of which varies along the length direction to form a wide portion and a narrow portion of the limiting hole; and The width of the T-shaped load-bearing member matches that of the limiting hole. The T-shaped load-bearing member slides along the length of the limiting hole to restrict or release the door. When the door in the restricted state is subjected to a force applied inward, the T-shaped load-bearing member tends to move toward the narrow part of the limiting hole.

2. The door check assembly of claim 1, wherein The wide portion and the narrow portion are located at opposite ends of the limiting hole; or The narrow portion is located at one end of the limiting hole, and the wide portion is located in the middle region of the limiting hole.

3. The door check assembly of claim 1, wherein The T-shaped load-bearing component is a bolt.

4. The door limiting assembly as described in claim 1, characterized in that, The T-shaped load-bearing member is installed on the vehicle door frame, and the limiting part includes a partial reinforcing plate whose shape matches the inner panel of the door, and the partial reinforcing plate is connected to the inner panel of the door.

5. The door check assembly of claim 4, wherein The material of the partial reinforcing plate is the same as that of the inner door panel, and the partial reinforcing plate is welded to the inner door panel.

6. The door check assembly of claim 4, wherein The T-shaped load-bearing component is a bolt, which is connected to the vehicle body door frame by welding nuts.

7. The door check assembly of claim 1, wherein The T-shaped load-bearing member is installed at least one of the following locations: The position on the B-pillar reinforcement panel that matches the door lock hook; The lower part of the car door area; and The area around the door's anti-collision beam.

8. The door check assembly of claim 7, wherein, The T-shaped load-bearing member is installed in the door anti-collision beam area. The T-shaped load-bearing member passes through the inner door panel and the head of the T-shaped load-bearing member faces inward. The limiting hole is located in the vehicle body.

9. A door system having a door check assembly, characterized by include: Vehicle body door frame; The door is movably connected to the vehicle body door frame; as well as The door limiting assembly as described in any one of claims 1 to 8, wherein the limiting hole is provided in one of the vehicle body door frame and the vehicle door, and the T-shaped load-bearing member is installed in the other of the vehicle body door frame and the vehicle door.

10. An automobile having a door check assembly, characterized by comprising: include: The door system as described in claim 9.

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