A kind of anti-cracking type door inner plate handrail skeleton reinforcing structure and vehicle door assembly

Abstract

The utility model relates to a kind of anti-cracking type door inner plate handrail skeleton reinforcement structure and vehicle door assembly, wherein, anti-cracking type door inner plate handrail skeleton reinforcement structure includes handrail skeleton, and reinforcing rib and multiple through holes are provided in handrail skeleton side, multiple welding positioning columns are equipped on handrail skeleton, welding positioning column is distributed in the periphery of handrail skeleton, for being welded with door inner plate and fixed. Handrail skeleton is connected with door inner sheet metal by at least two fixed points, and fixed point uses screw connection, and screw installation direction is towards vehicle, and the position of fixed point is located in the stress concentration area of handrail skeleton. Vehicle door assembly includes door inner plate and door inner sheet metal, further include the anti-cracking type door inner plate handrail skeleton reinforcement structure of the utility model. The utility model uses grid type reinforcing rib in the periphery of handrail skeleton, and increase two screws and vehicle body connection, effectively improve the overall stiffness and load capacity of handrail skeleton, so as to be able to collapse in time to protect the rib safety of in-vehicle occupant when side collision.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a crack-resistant door inner panel armrest frame reinforcement structure and door assembly. Background Technology

[0002] Currently, most car models lack a reinforced frame for the inner door panel armrest. The armrest support and the inner door panel frame are integrally molded. Even with crumple zones, this design often results in minimal or no crumple in the armrest frame during a side impact, leading to poor rib protection for occupants. Furthermore, because it's integrally molded, the armrest cover is usually screwed on the back with the screw tips facing the occupants, posing a risk of injury during a collision.

[0003] Existing designs occasionally include an inner door panel armrest frame, but its structural design is not reasonable and it is not connected to the door sheet metal, making it prone to breakage in a collision. This makes it difficult to effectively improve the overall rigidity and load-bearing capacity of the armrest frame. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the technical problem of poor protection for occupants when the inner door panel armrest breaks during a collision in the prior art, this utility model provides a crack-resistant inner door panel armrest frame reinforcement structure and door assembly. The perimeter adopts a grid-type reinforcing rib and two additional screws are added to connect with the vehicle body, which effectively improves the overall rigidity and load-bearing capacity of the armrest frame, so that it can collapse in time during a side collision to protect the rib safety of the occupants.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a crack-resistant door inner panel handrail frame reinforcement structure, including a handrail frame. The handrail frame has reinforcing ribs and multiple through holes on its sides. The reinforcing ribs are used to improve the basic support rigidity of the handrail frame in the Y direction, and the through holes are used to release stress generated by collision loads. The handrail frame has multiple welded positioning posts distributed around its perimeter for welding and fixing to the door inner panel. The handrail frame is the area supporting the elbow and the hand for opening and closing, and therefore has certain load-bearing requirements. Designing grid-type reinforcing ribs on the sides and even around the perimeter of the handrail frame can increase structural rigidity. The through hole design can release collision load stress. The handrail frame is connected to the door inner sheet metal through at least two fixing points. These fixing points are connected by screws, with the screws installed facing outwards. The fixing points are located in the stress concentration area of ​​the handrail frame to enhance the overall structural rigidity and load-bearing capacity.

[0006] Preferably, the armrest frame is provided with reinforcing ribs around its perimeter to improve the basic support rigidity of the armrest frame in the Y direction.

[0007] Preferably, the reinforcing rib is a mesh-type reinforcing rib, which can increase the structural rigidity, and the through hole is located at the intersection of the mesh of the mesh-type reinforcing rib.

[0008] Preferably, the welding positioning posts are evenly distributed around the perimeter of the handrail frame to ensure uniform and stable fixing.

[0009] Preferably, the number of welding positioning posts is 10, and the welding positioning posts are evenly arranged to ensure a firm weld.

[0010] Preferably, the dimensions of the welding positioning post are: radius R = 3.25 mm and height = 15 mm.

[0011] Preferably, the handrail frame includes a sequentially connected inclined section and a transverse section. The handrail frame is connected to the sheet metal inside the door through two fixing points, which are located at the middle of the inclined section and the middle of the transverse section, respectively.

[0012] Preferably, a screw seat is provided at the fixing point, and the handrail frame is connected to the sheet metal inside the door at the fixing point by screws.

[0013] Preferably, the screw holder is a plastic screw holder.

[0014] A car door assembly includes an inner door panel and inner door sheet metal, and also includes the crack-resistant inner door panel armrest frame reinforcement structure described in this utility model. The armrest frame is welded and fixed to the inner door panel by welding positioning posts, and the armrest frame is fixed to the inner door sheet metal by screws at the fixing points.

[0015] Compared with the prior art, this utility model provides a crack-resistant door inner panel handrail frame reinforcement structure and a door assembly, which has the following beneficial effects:

[0016] 1. The handrail frame is reinforced with a grid pattern around its perimeter, giving the handrail frame good basic support rigidity in the Y direction;

[0017] 2. The armrest frame has more connection and fixing points with the vehicle body, which effectively increases the installation strength and load-bearing capacity of the armrest frame, making the door panel less likely to break in a side collision and more robust; the screw tips face outwards, so that the ribs of the occupants can be protected to the maximum extent in a side collision, reducing the degree of injury in the event of an accident.

[0018] 3. The armrest frame is not only suitable for the left armrest, but can also be symmetrically developed for the right armrest, and can be used for both front and rear doors. It has good versatility and adaptability, and meets the armrest layout requirements of different car models.

[0019] 4. The armrest frame structure is designed primarily to protect the chest of the occupants inside the vehicle. In the event of a side collision, it can effectively reduce the impact force on the occupants and reduce the degree of injury during an accident.

[0020] 5. The mesh-type reinforcing ribs and through holes work together to achieve controllable crumple during side impacts, thus protecting the occupant's chest and ribs. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the handrail frame in the anti-crack door inner panel handrail frame reinforcement structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the handrail frame from another perspective in the anti-crack door inner panel handrail frame reinforcement structure of this utility model.

[0024] Figure 3 This is a top view schematic diagram of the handrail frame in the anti-crack door inner panel handrail frame reinforcement structure of this utility model.

[0025] Figure 4 This is a schematic diagram of a crack-resistant door inner panel handrail frame reinforcement structure according to this utility model.

[0026] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0027] Figure 6 This is a structural schematic diagram of a car door assembly according to the present invention.

[0028] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle.

[0029] Figure 8 This is a schematic diagram of the end face structure of the screw mating point of a car door assembly according to this utility model.

[0030] In the diagram: 1. Handrail frame; 1-1. Inclined section; 1-2. Horizontal section; 2. Reinforcing rib; 3. Through hole; 4. Welded positioning post; 5. Inner door panel; 6. Inner door sheet metal; 7. Screw; 8. Screw seat; 9. Window lifting panel; 10. Middle trim panel. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0032] Example 1

[0033] like Figure 1-5 As shown, this utility model discloses a crack-resistant door inner panel handrail frame reinforcement structure, including a handrail frame 1. The handrail frame 1 has reinforcing ribs 2 and multiple through holes 3 on its sides. The reinforcing ribs 2 are used to improve the basic support rigidity of the handrail frame 1 in the Y direction. Figure 3 The middle arrow indicates the Y direction. The through-hole 3 is used to release stress generated by collision loads. Multiple welded positioning posts 4 are provided on the armrest frame 1, distributed around its perimeter, for welding and fixing to the inner door panel 5. The armrest frame 1 is the area supporting the elbow and for hand operation, requiring a certain load-bearing capacity. Mesh-type reinforcing ribs 2 are designed on the sides and even around the perimeter of the armrest frame 1 to increase structural rigidity. The through-hole 3 is designed to release collision load stress. The armrest frame 1 is connected to the inner door sheet metal 6 through at least two fixing points. These fixing points are connected with screws 7, with the screws 7 facing outwards. The fixing points are located in the stress concentration area of ​​the armrest frame 1 to enhance the overall structural rigidity and load-bearing capacity. The armrest frame 1 includes sequentially connected inclined sections 1-1 and transverse sections 1-2. The armrest frame 1 is connected to the inner door sheet metal 6 through two fixing points, located at the middle of the inclined section 1-1 and the middle of the transverse section 1-2, respectively. Under the massive impact of a side collision, the door panel may bend and break, posing a significant threat to the head and chest of occupants. Even minor impacts to the neck and spine during a collision can cause serious injury; therefore, protection for occupants in road traffic accidents should prioritize the head, chest, and ribs. This invention adds two fixing points, making the inner door panel less prone to breakage in side collisions and more robust. Additionally, the pointed ends of screws 7 face outwards to prevent deformation of the inner door panel during a collision from causing screws to pierce occupants, thus reducing the risk of an accident.

[0034] Specifically, the armrest frame 1 is provided with reinforcing ribs 2 around its perimeter, and the reinforcing ribs 2 are grid-type reinforcing ribs, with through holes 3 located at the grid intersections of the grid-type reinforcing ribs.

[0035] Specifically, the welding positioning posts 4 are evenly distributed around the handrail frame 1.

[0036] Specifically, there are 10 welding positioning posts 4. The dimensions of the welding positioning posts 4 are: radius R of 3.25mm and height of 15mm. The welding positioning posts 4 are evenly distributed to ensure a firm weld. The optimized welding position can ensure that the covering materials such as door panel trim and leather are firmly inserted into the welding positioning posts 4, and significantly improves the overall rigidity and load-bearing capacity of the handrail structure.

[0037] Specifically, a plastic screw seat 8 is provided at the fixing point, and the handrail frame 1 is connected to the inner sheet metal 6 of the door at the fixing point by screws 7.

[0038] Example 2

[0039] like Figure 6-8 As shown, a car door assembly includes an inner door panel 5, an inner door sheet metal 6, and a crack-resistant inner door panel armrest frame reinforcement structure as described in Embodiment 1. The inner door sheet metal 6 is a sheet metal part of the car body, the inner door panel 5 is mounted on the inner door sheet metal 6, and the inner door sheet metal 6 is welded to the outer door panel.

[0040] The handrail frame 1 is welded and fixed to the inner door panel 5 via welding positioning posts 4. The handrail frame 1 is also fixed to the inner door sheet metal 6 at two fixing points using screws 7. Figure 4-5 As shown, there are 10 welding positioning posts 4, which are evenly distributed to ensure a firm weld. The optimized welding positions ensure that the door panel trim, leather, and other covering materials are securely inserted into the welding positioning posts 4, and significantly improve the overall rigidity and load-bearing capacity of the handrail structure. The two fixing points are located at the middle of the inclined section 1-1 and the middle of the transverse section 1-2, respectively.

[0041] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A crack-resistant door inner panel handrail frame reinforcement structure, characterized in that: The system includes a handrail frame (1), which has reinforcing ribs (2) and multiple through holes (3) on its side. The through holes (3) are used to release the stress generated by the collision load. The handrail frame (1) is provided with multiple welded positioning posts (4), which are distributed around the handrail frame (1) and are used to weld and fix it to the inner door panel (5). The handrail frame (1) is connected to the inner door sheet metal (6) through at least two fixing points. The fixing points are connected by screws (7), and the screws (7) are installed facing outwards. The fixing points are located in the stress concentration area of ​​the handrail frame (1).

2. The anti-crack door inner panel handrail frame reinforcement structure as described in claim 1, characterized in that: The armrest frame (1) is provided with reinforcing ribs (2) around its perimeter.

3. The crack-resistant door inner panel handrail frame reinforcement structure as described in claim 1, characterized in that: The reinforcing rib (2) is a mesh-type reinforcing rib, and the through hole (3) is located at the intersection of the mesh of the mesh-type reinforcing rib.

4. The anti-crack door inner panel handrail frame reinforcement structure as described in claim 1, characterized in that: The welding positioning posts (4) are evenly distributed around the armrest frame (1).

5. The anti-crack door inner panel handrail frame reinforcement structure as described in claim 1, characterized in that: The number of welding positioning posts (4) is 10.

6. The crack-resistant door inner panel handrail frame reinforcement structure as described in claim 5, characterized in that: The dimensions of the welding positioning post (4) are: radius R = 3.25 mm and height = 15 mm.

7. The anti-crack door inner panel handrail frame reinforcement structure as described in claim 1, characterized in that: The handrail frame (1) includes an inclined section (1-1) and a transverse section (1-2) connected in sequence. The handrail frame (1) is connected to the inner sheet metal (6) of the door through two fixing points. The two fixing points are located in the middle of the inclined section (1-1) and the middle of the transverse section (1-2), respectively.

8. The anti-crack door inner panel handrail frame reinforcement structure as described in claim 1, characterized in that: A screw seat (8) is provided at the fixing point, and the handrail frame (1) is connected to the inner sheet metal (6) of the door by screws (7) at the fixing point.

9. The crack-resistant door inner panel handrail frame reinforcement structure as described in claim 8, characterized in that: The screw seat (8) is a plastic screw seat.

10. A door assembly, comprising an inner door panel (5) and an inner door sheet metal (6), characterized in that: It also includes a crack-resistant door inner panel handrail frame reinforcement structure as described in any one of claims 1-9, wherein the handrail frame (1) is welded and fixed to the door inner panel (5) by welding positioning posts (4), and the handrail frame (1) is fixed to the door inner sheet metal (6) by screws (7) at the fixing point.

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