Lower protective plate of automobile door

By designing a guard plate structure including elastic plate, connecting rod, buffer structure and support structure, the problem of door deformation caused by dry impact on the vehicle door guard plate is solved, and the effect of improving the strength of the door structure and opening and closing safety is achieved.

CN222859373UActive Publication Date: 2025-05-13JIANGSU RUNDALI COMPOSITE MATERIAL CO LTD
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Patent Information

Application Number
CN202422008378.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2025-05-13
Estimated Expiration
2034-08-19

AI Technical Summary

Technical Problem

When the underside guardrail of the existing car door is subjected to strong dry impact, it can easily lead to the door deformation and affect the safety of door opening and closing.

Method used

A guard plate structure including an elastic plate, a connecting rod, a buffer structure and a support structure is designed. Through the elasticity of the elastic plate and the absorption effect of the buffer structure, the impact force is offset and the pressure is transmitted to the support structure to avoid deformation of the door.

Benefits of technology

Effectively prevent doors from being deformed due to extrusion, improve the structural strength and opening and closing safety of doors, while reducing damage rate and extending service life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN222859373U_ABST
    Figure CN222859373U_ABST
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Abstract

The utility model provides an automobile door lower guard board which is characterized in that the automobile door lower guard board comprises an automobile door, a guard board structure is arranged on the surface of the automobile door, the guard board structure comprises an elastic board, a connecting rod, a buffering structure and a supporting structure, the elastic board is fixedly connected to the front face of the automobile door, the elastic board is elastic, and the connecting rod is connected with the buffering structure. The connecting rod is fixedly connected to the side, away from the automobile door, of the elastic plate, the side, away from the elastic plate, of the connecting rod penetrates through the automobile door and extends to the back face of the automobile door, the supporting structure is arranged on the back face of the automobile door, and the buffering structure is installed on the surface of the elastic plate. And meanwhile, the auxiliary buffering structure counteracts impact force, the protection plate structure can transmit pressure to move the pressure into the supporting structure, the effect of supporting the automobile door can be achieved, the automobile door is prevented from being extruded and deformed, and meanwhile the structural strength of the automobile door can be improved.
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Description

Technical Field

[0001] The utility model relates to a lower guard plate for an automobile door, belonging to the technical field of door accessories. Background Art

[0002] The door lower guard plate, also known as the side skirt or side surround skirt, is an important part of the vehicle body structure. The door lower guard plate is a plastic guard plate installed on both sides of the vehicle body to protect the bottom of the vehicle from external impact and scratches. It is usually made of plastic, which is light and has a certain toughness and durability.

[0003] For example, the China Patent Network Publication Authorization Announcement No. (CN 201784712 U) has the following patent name: A connection device between a vehicle threshold plate and a lower guard plate, comprising an inner plate and an outer plate, wherein an L-shaped hook is provided near the lower end of the outer plate, the long side of the L-shaped hook is connected to the outer plate, an inner plate is installed on the left side of the outer plate and the inner side of the hook, and a gap is provided between the lower side of the inner plate and the L-shaped hook. The utility model has the advantages of simple structure, easy manufacturing, beautiful appearance, convenient assembly and maintenance, low damage rate, and long service life.

[0004] However, during use, the above-mentioned lower guard plate mainly provides anti-collision protection through the performance of the material. When the lower guard plate is subjected to a strong dry impact, the vehicle door located on the inner side of the lower guard plate will be deformed, affecting the safety of opening and closing the vehicle door.

[0005] For this reason, a lower guard plate for an automobile door is proposed. Utility Model Content

[0006] In view of this, the utility model provides a lower guard plate for a vehicle door to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the utility model is implemented as follows: a lower guard plate of a car door, characterized in that it includes a car door, a guard plate structure is arranged on the surface of the car door, the guard plate structure includes a spring plate, a connecting rod, a buffer structure and a supporting structure, the spring plate is fixedly connected to the front side of the car door, the spring plate is elastic, the connecting rod is fixedly connected to the side of the spring plate away from the car door, the side of the connecting rod away from the spring plate passes through the car door and extends to the back of the car door, the supporting structure is arranged on the back of the car door, and the buffer structure is installed on the surface of the spring plate.

[0008] Further preferably, the supporting structure comprises a frame fixedly connected to the back of the vehicle door, the rear end of the connecting rod is located inside the frame, the rear end of the connecting rod is provided with an impact plate, and the side of the impact plate away from the connecting rod can contact the inner surface of the frame.

[0009] Further preferably, a buffer pad is fixedly connected to the back side of the impact plate, the interior of the buffer pad is configured to be hollow, and the outer surface of the buffer pad can contact the inner wall of the frame.

[0010] Further preferably, a nut is threadedly connected to the surface of the connecting rod, and the nut is located on the back side of the vehicle door.

[0011] Further preferably, sleeves are fixedly connected to both sides of the front surface of the impact plate, and the side of the sleeve away from the impact plate is sleeved on the surface of the connecting rod, and the sleeve and the connecting rod are plugged into each other.

[0012] Further preferably, the buffer structure includes a rubber pad fixedly connected to the front side of the spring plate, and a damping plate is fixedly connected to the front side of the rubber pad.

[0013] Further preferably, the front side of the spring plate is fixedly connected to a limiting plate, and the limiting plate extends from a side away from the spring plate to the front side of the spring plate extension portion.

[0014] Further preferably, a support frame is fixedly connected to the front side of the vehicle door, a side of the support frame away from the vehicle door is in contact with the back side of the spring plate, and the support frame is made of damping material.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] 1. The utility model protects the outer side of the vehicle door through the guard plate structure, and the auxiliary buffer structure offsets the impact force. At the same time, the guard plate structure can transfer the pressure to move it to the inside of the supporting structure, so as to achieve the effect of supporting the vehicle door, avoid the vehicle door from being squeezed and deformed, and at the same time improve the structural strength of the vehicle door.

[0017] 2. The utility model can transmit pressure by setting a frame and an impact plate, and can use the frame to distribute the pressure to avoid penetration under the door. By setting a buffer pad, the impact force of the impact plate can be weakened to avoid dry collision between the impact plate and the frame. By setting a nut, the connecting rod can be fixed to improve the connection stability between the connecting rod and the door. By setting a sleeve, it is convenient for users to assemble the impact plate and improve the convenience of operation of the impact plate. By setting a rubber pad and a damping plate, the supporting effect of the spring plate can be improved and the impact force can be eliminated in advance. By setting a limit plate, the spring plate can be limited to avoid excessive movement of the spring plate. By setting a support frame, the bent part of the spring plate can be supported to avoid excessive deformation of the spring plate.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a three-dimensional front view structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the three-dimensional rear view structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the utility model in a disassembled state;

[0023] Figure 4 It is a partial structural schematic diagram of the utility model;

[0024] Figure 5 It is a schematic top view of a local structure of the utility model.

[0025] Figure numerals: 1. vehicle door; 2. guard plate structure; 3. spring plate; 4. connecting rod; 5. buffer structure; 6. supporting structure; 7. frame; 8. impact plate; 9. buffer pad; 10. nut; 11. sleeve; 12. rubber pad; 13. damping plate; 14. limit plate; 15. support frame. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figure 1-5As shown, an embodiment of the utility model provides a lower guard plate of a car door, including a door 1, a guard plate structure 2 is arranged on the surface of the door 1, the guard plate structure 2 includes a spring plate 3, a connecting rod 4, a buffer structure 5 and a supporting structure 6, the spring plate 3 is fixedly connected to the front side of the door 1, the spring plate 3 is elastic, the connecting rod 4 is fixedly connected to the side of the spring plate 3 away from the door 1, the side of the connecting rod 4 away from the spring plate 3 passes through the door 1 and extends to the back side of the door 1, the supporting structure 6 is arranged on the back side of the door 1, and the buffer structure 5 is installed on the surface of the spring plate 3.

[0030] The outer side of the vehicle door 1 is protected by the guard plate structure 2, while the auxiliary buffer structure 5 offsets the impact force. At the same time, the guard plate structure 2 can transfer the pressure to move it to the inside of the supporting structure 6, so as to achieve the effect of supporting the vehicle door 1, prevent the vehicle door 1 from being squeezed and deformed, and at the same time improve the structural strength of the vehicle door 1.

[0031] Example 2

[0032] In one embodiment, the support structure 6 includes a frame 7 fixedly connected to the back of the vehicle door 1, the rear end of the connecting rod 4 is located inside the frame 7, the rear end of the connecting rod 4 is provided with an impact plate 8, the side of the impact plate 8 away from the connecting rod 4 can contact the inner surface of the frame 7, the back of the impact plate 8 is fixedly connected with a buffer pad 9, the inside of the buffer pad 9 is set to be hollow, the outer surface of the buffer pad 9 can contact the inner wall of the frame 7, the surface of the connecting rod 4 is threadedly connected with a nut 10, the nut 10 is located on the back of the vehicle door 1, and both sides of the front of the impact plate 8 are fixedly connected There is a sleeve 11, and the side of the sleeve 11 away from the impact plate 8 is sleeved on the surface of the connecting rod 4, the sleeve 11 and the connecting rod 4 are plugged into each other, the buffer structure 5 includes a rubber pad 12 fixedly connected to the front of the spring plate 3, the front of the rubber pad 12 is fixedly connected to a damping plate 13, the front of the spring plate 3 is fixedly connected to a limiting plate 14, the side of the limiting plate 14 away from the spring plate 3 extends to the front of the extension part of the spring plate 3, the front of the door 1 is fixedly connected to a support frame 15, the side of the support frame 15 away from the door 1 is in contact with the back of the spring plate 3, and the material of the support frame 15 is a damping material.

[0033] By setting the frame 7 and the impact plate 8, the pressure can be transmitted, and the frame 7 can be used to distribute the pressure to avoid the door 1 being penetrated from below. By setting the buffer pad 9, the impact force of the impact plate 8 can be weakened to avoid dry collision between the impact plate 8 and the frame 7. By setting the nut 10, the connecting rod 4 can be fixed to improve the connection stability between the connecting rod 4 and the door 1. By setting the sleeve 11, it is convenient for users to assemble the impact plate 8 and improve the operating convenience of the impact plate 8. By setting the rubber pad 12 and the damping plate 13, the supporting effect of the spring plate 3 can be improved and the impact force can be eliminated in advance. By setting the limiting plate 14, the spring plate 3 can be limited to avoid excessive movement of the spring plate 3. By setting the support frame 15, the bent part of the spring plate 3 can be supported to avoid excessive deformation of the spring plate 3.

[0034] The utility model is in operation: when in use, the spring plate 3 protects the outer side of the vehicle door 1. When the spring plate 3 is subjected to dry extrusion, the spring plate 3 can be deformed by elastic force and the elastic force is used to assist the buffer material to weaken the pressure. During the deformation process of the spring plate 3, the connecting rod 4 is carried to move backwards. The connecting rod 4 drives the impact plate 8 to move synchronously and blocks the pressure when the impact plate 8 contacts the frame 7, so that the frame 7 transmits the pressure to a larger range on the back of the vehicle door 1 to avoid deformation of the vehicle door 1.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A lower door guard plate for an automobile, characterized in that: The vehicle door (1) comprises a guard plate structure (2) arranged on the surface of the vehicle door (1), the guard plate structure (2) comprising a spring plate (3), a connecting rod (4), a buffer structure (5) and a support structure (6), the spring plate (3) being fixedly connected to the front surface of the vehicle door (1), the spring plate (3) being elastic, the connecting rod (4) being fixedly connected to a side of the spring plate (3) away from the vehicle door (1), the side of the connecting rod (4) away from the spring plate (3) passing through the vehicle door (1) and extending to the back surface of the vehicle door (1), the support structure (6) being arranged on the back surface of the vehicle door (1), and the buffer structure (5) being mounted on the surface of the spring plate (3).

2. The automobile door lower guard plate according to claim 1, characterized in that: The support structure (6) comprises a frame (7) fixedly connected to the back of the vehicle door (1); the rear end of the connecting rod (4) is located inside the frame (7); the rear end of the connecting rod (4) is provided with an impact plate (8); and the side of the impact plate (8) away from the connecting rod (4) is capable of contacting the inner surface of the frame (7).

3. The automobile door lower guard plate according to claim 2, characterized in that: A buffer pad (9) is fixedly connected to the back of the impact plate (8); the interior of the buffer pad (9) is arranged to be hollow; and the outer surface of the buffer pad (9) is capable of contacting the inner wall of the frame (7).

4. The automobile door lower guard plate according to claim 1, characterized in that: A nut (10) is threadedly connected to the surface of the connecting rod (4), and the nut (10) is located on the back side of the vehicle door (1).

5. The automobile door lower guard plate according to claim 2, characterized in that: Both sides of the front surface of the impact plate (8) are fixedly connected with sleeves (11), and the side of the sleeve (11) away from the impact plate (8) is sleeved on the surface of the connecting rod (4), and the sleeve (11) and the connecting rod (4) are plugged into each other.

6. The automobile door lower guard plate according to claim 1, characterized in that: The buffer structure (5) comprises a rubber pad (12) fixedly connected to the front side of the spring plate (3), and a damping plate (13) is fixedly connected to the front side of the rubber pad (12).

7. The automobile door lower guard plate according to claim 1, characterized in that: The front side of the spring plate (3) is fixedly connected to a limiting plate (14), and the limiting plate (14) extends away from a side of the spring plate (3) to the front side of an extension portion of the spring plate (3).

8. The automobile door lower guard plate according to claim 1, characterized in that: A support frame (15) is fixedly connected to the front of the vehicle door (1); a side of the support frame (15) away from the vehicle door (1) contacts the back of the spring plate (3); and the material of the support frame (15) is a damping material.

Citation Information

Patent Citations

  • Connecting device of car door sill board and lower guard plate

    CN201784712U