Door opening assisting stopper

Abstract

The utility model discloses an auxiliary door opening stopper, it includes: the stopper support of installation on the car body, through the half casing of screw fixed on the door, limit arm, half casing, pressure spring, sliding block, rivet, one end of the limit arm is fixed with the stopper support through the step rivet, the other end of limit arm is clamped at the middle place of two half casings to make half casing move on limit arm left and right, after the automatic unlocking of door, the driver is convenient to observe the outside environment through the small angle gap of automatic opening of door before getting off, reduces or avoids the risk of collision with the neighboring car or other external objects in the door opening process, the angle of automatic opening after the unlocking of door will make the driver open the door more labor-saving, reduces the damage caused by the collision accident, reduces the security risk.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically an auxiliary door opening limiter. Background Technology

[0002] As a crucial element of vehicle safety and user experience, car door opening mechanisms hold a significant position in the automotive industry. They directly impact passenger convenience when getting in and out of the vehicle (e.g., electric doors and keyless entry improve operational efficiency) and play a core role in collision safety protection (e.g., door anti-collision beams and emergency escape designs). Furthermore, the trend towards intelligentization is driving the integration of door opening mechanisms, incorporating gesture control, radar collision warning, and deep integration with the vehicle's electronic systems, becoming an important component of the intelligent cockpit ecosystem. In the future, with the widespread adoption of autonomous driving technology and the increasing demand for personalization, door opening mechanisms will incorporate more lightweight materials and AI interaction technologies, continuously optimizing the human-vehicle interaction experience while ensuring safety, thus solidifying their position as a core carrier for vehicle intelligent upgrades and brand differentiation.

[0003] As a core component of vehicle door systems, ensuring safety and functionality, the door limiter plays a crucial role in precisely controlling the door's opening angle to prevent collisions caused by excessive opening, while also enhancing usability with features such as segmented parking and adaptive adjustment. With the deepening trends of automotive intelligence and lightweighting, door limiters are being upgraded towards higher precision, lower noise, and fatigue resistance, integrating sensor technologies such as collision prediction and gesture sensing to adapt to the needs of electric doors and autonomous driving scenarios. Furthermore, lightweight materials such as carbon fiber composites are being used to optimize energy consumption and space layout. In the future, with the widespread adoption of new energy vehicles and users' pursuit of intelligent interactive experiences, door limiters will integrate more active safety functions and ecosystem connectivity capabilities, becoming a key fulcrum for the intelligent transformation of vehicle door systems, continuously expanding their application potential in safety protection, human-vehicle interaction, and energy conservation.

[0004] In terms of existing mechanical door limiters, most passenger car models on the market require users to manually push the door to a certain small opening angle after unlocking. Users also need to observe the distance to neighboring vehicles while keeping the door stationary to prevent the door from being accidentally pushed open, especially after parking on a slope, which could lead to safety hazards such as collisions when the door is not at a restricted angle.

[0005] For example, Chinese patent CN 113585897 A discloses a novel high-energy side-opening car door limiter arm structure, including a limiter arm with a housing connected to its upper end and a limiter bracket connected to its lower end via rivets. The limiter arm has a plastic-coated iron core inside and is provided with positioning grooves. The grooves are connected to a flat section, and the section between the grooves and the flat section is a ramp. Symmetrical grooves are hollowed out on both sides of the limiter arm, and reinforcing ribs are provided within the grooves. The grooves have an I-shaped structure, and the flat section is a small-angle ramp with a textured surface. By hollowing out the grooves within the limiter arm and providing reinforcing ribs within the grooves, the injection molding properties and overall strength of the limiter arm are improved, the product weight is reduced, and passengers can more easily close the car door and keep the door in the open position. This technical solution addresses the issue of reduced structural strength and deformation in the prior art by creating a groove in the middle of the limiting arm to keep the outer side of the limiting arm flat. Reinforcing ribs within the groove support the sides of the limiting arm, improving structural strength. The use of a small-angle bevel structure reduces the directional force required for opening and closing the door, thus minimizing the impact of force. However, this solution requires the driver to manually push the door to a relatively small opening angle after unlocking, and to observe the distance to neighboring vehicles while keeping the door stationary. This increases the risk of collisions with neighboring vehicles or other external objects, potentially leading to injuries and posing a safety hazard. Utility Model Content

[0006] Purpose of this utility model: To address the shortcomings of existing technologies, this utility model provides an auxiliary door opening limiter. After the car door automatically unlocks, the auxiliary door opening limiter causes the door to automatically open by 5° to 15°. The opened edge of the door does not exceed the straight line position of the rearview mirror. After the door is opened, the straight line distance between the edge of the door and the vehicle body is less than the straight line distance between the outer edge of the rearview mirror and the vehicle body. This allows the driver to easily observe the external environment through the small opening of the door before getting out of the vehicle, reducing or avoiding the risk of collisions with adjacent vehicles or other external objects during door opening. The automatically opening angle after the door unlocks makes it easier for the driver to open the door, reducing damage caused by collisions and minimizing safety hazards.

[0007] Technical solution: In order to achieve the above objectives, the present invention provides an auxiliary door opening limiter, which includes: a limiter bracket installed on the vehicle body, a half cover fixed to the door by screws, a limiter arm, a half cover, a pressure spring, a slider, and rivets. One end of the limiter arm is fixed to the limiter bracket by a stepped rivet, and the other end of the limiter arm is clamped in the middle of the two half covers so that the half covers can move left and right on the limiter arm.

[0008] The two half-shells are fixed together by riveting. The slider inside the half-shell is close to the limiting arm. One end of the pressure spring is sleeved on the outside of the slider and fixed to the slider. The other end of the pressure spring abuts against the inner plane of the half-shell. The compression force of the pressure spring makes the upper and lower surfaces of the limiting arm abut against the two sliders respectively.

[0009] The limiting arm is provided with a maximum height area, a fully closed door area, a small door angle area, and a first door position area in sequence along its axial direction. The door angle can be controlled by controlling the sliders in the upper and lower half-covers to be simultaneously locked at different axial positions on the limiting arm.

[0010] As a further preferred embodiment of this utility model, the highest height zone is located closest to the vehicle body, and a 30° inclined surface is provided between the highest height zone and the fully closed door zone. By locking the upper and lower sliders on the right side of the highest height zone, the slider controlled by spring compression is limited, ensuring the stability of the door opening limiter.

[0011] As a further preferred embodiment of this utility model, the length of the fully closed area of ​​the car door is 2mm to 5mm, and the car door is in a fully closed state when the upper and lower sliders are locked in the fully closed area of ​​the car door.

[0012] As a further preferred embodiment of this utility model, an inclined surface of 10° to 20° is provided between the fully closed area of ​​the car door and the small-angle area of ​​the car door.

[0013] As a further preferred embodiment of this utility model, after the car door is unlocked, the half-cover is energized, and the force of the compression spring drives the slider to move to the right, so that the slider is stuck in the small angle area of ​​the car door. The working principle of controlling the compression spring to drive the slider to slide on the limit arm through the electromagnetic switch has been widely used in automobile doors and will not be repeated here.

[0014] As a further preferred embodiment of this utility model, when the slider is engaged in the small angle area of ​​the car door, the car door is automatically opened by 5° to 15°, so as to make it easier for the driver to open the car door with less effort, reduce the damage caused by collision accidents, and reduce safety hazards.

[0015] As a further preferred embodiment of this utility model, after the car door is opened, the straight-line distance between the edge of the car door and the car body is less than the straight-line distance between the outer side of the rearview mirror and the car body, and the opened edge of the door does not exceed the straight-line position of the rearview mirror.

[0016] As a further preferred embodiment of this utility model, the radial height of the first gear position area of ​​the car door is higher than the radial height of the small angle area of ​​the car door.

[0017] As a further preferred embodiment of this utility model, when the slider slides on the limiting arm to the first position area of ​​the car door, the car door is in a normal open state.

[0018] Beneficial effects: Compared with the prior art, the auxiliary door opening limiter described in this utility model has the following advantages:

[0019] (1) After the car door is automatically unlocked, the auxiliary door opening limiter makes the car door open automatically at a certain angle, so that the driver can observe the outside environment through the small angle gap of the car door before getting out of the car.

[0020] (2) By setting the automatic opening angle after the car door is automatically unlocked, the risk of the car door colliding with neighboring vehicles or other external objects during the opening process can be reduced or avoided.

[0021] (3) The angle at which the car door automatically opens after unlocking will make it easier for the driver to open the car door, reducing the damage caused by collision accidents and reducing safety hazards. Attached Figure Description

[0022] Figure 1 This is a full sectional view of the present invention after installation;

[0023] Figure 2 This is an exploded view of the present invention;

[0024] Figure 3 This is a magnified view of a portion of the limiting arm;

[0025] Figure 4 This is a schematic diagram showing the relative positions of the slider and the limit arm when the car door is fully closed.

[0026] Figure 5 A schematic diagram showing the relative positions of the slider and the limiting arm when the car door is opened to a small angle;

[0027] Figure 6 This is a schematic diagram showing the relative positions of the slider and the limiting arm when the car door is in the first open position. Detailed Implementation

[0028] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 , Figure 2 As shown, the auxiliary door opening limiter of this utility model includes: a limiter bracket 1, a stepped rivet 2, a limit arm 3, a half cover 4, a screw 5, a pressure spring 6, a slider 7, and a rivet 8.

[0030] The limiter bracket 1 is installed on the vehicle body, and the half-cover 4 is fixed to the door with screws 5. One end of the limit arm 3 is fixed to the limiter bracket 1 with stepped rivets 2, and the other end of the limit arm 3 is clamped in the middle of the two half-covers 4, so that the half-covers 4 can move left and right on the limit arm 3.

[0031] Two half-shells 2 are riveted together by rivets 8. The slider 7 inside the half-shell 2 is close to the limiting arm 3. One end of the pressure spring 6 is sleeved on the outside of the slider 7 and fixed to the slider 7. The other end of the pressure spring 6 abuts against the inner plane of the half-shell 4. Using the compression force of the pressure spring 6, the upper and lower surfaces of the limiting arm 3 are abutted by the two sliders 7 respectively.

[0032] like Figure 3 As shown, the axial direction of the limiting arm 3 is provided with a maximum height area 31, a fully closed door area 32, a small door angle area 33, and a first door position area 34. By controlling the sliders 7 in the upper and lower half-covers 4 to simultaneously engage with the axially provided maximum height area 31, fully closed door area 32, small door angle area 33, or first door position area 34 on the limiting arm 3, the door angle can be controlled.

[0033] The highest height zone 31 is located closest to the vehicle body. A 30° inclined surface is provided between the highest height zone 31 and the fully closed door zone 32. By locking the upper and lower sliders on the right side of the highest height zone, the slider controlled by spring compression is limited, ensuring the stability of the door opening limiter.

[0034] There is an inclined surface of 10° to 20° between the fully closed area 32 of the door and the small angle area 33 of the door.

[0035] like Figure 4 As shown, the length of the fully closed area 32 of the car door is 2mm to 5mm. When the upper and lower sliders 7 are locked in the fully closed area 32 of the car door, the car door is in the fully closed state.

[0036] like Figure 5 As shown, after the car door is unlocked, the half-cover 4 is energized, and the force of the compression spring 6 drives the slider 7 to move to the right, so that the slider 7 is locked in the small angle area 33 of the car door. When the slider 7 is locked in the small angle area 33 of the car door, the car door is automatically opened by 5° to 15°, so that the driver can open the car door more easily, reduce the damage caused by the collision accident, reduce safety hazards, and also make it easier for the driver to observe the outside environment through the small angle gap of the automatically opened car door before getting out of the car.

[0037] When the car door is opened, the straight-line distance between the edge of the door and the car body is less than the straight-line distance between the outer edge of the rearview mirror and the car body. In other words, the edge of the opened door does not exceed the straight-line position of the rearview mirror.

[0038] like Figure 6 As shown, the radial height of the first gear area 34 of the door is higher than the radial height of the small angle area 33 of the door. When the slider 7 slides on the limiting arm 3 to the first gear area 34 of the door, the door is in a normal opening state.

[0039] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An auxiliary door opening limiter, comprising: The limiter bracket (1) installed on the vehicle body and the half cover (4) fixed on the door by the housing screw (5) are characterized in that they further include: stepped rivet (2), limit arm (3), half cover (4), pressure spring (6), slider (7), rivet (8), one end of the limit arm (3) is fixed to the limiter bracket (1) by the stepped rivet (2), and the other end of the limit arm (3) is clamped in the middle of the two half covers (4) so ​​that the half cover (4) moves left and right on the limit arm (3); The rivet (8) fixes the two half-shells (2) together by riveting process. The slider (7) provided inside the half-shell (2) is close to the limiting arm (3). One end of the pressure spring (6) is sleeved on the outside of the slider (7) and fixed to the slider (7). The other end of the pressure spring (6) abuts against the inner plane of the half-shell (4). Using the compression force of the pressure spring (6), the upper and lower surfaces of the limiting arm (3) are abutted by the two sliders (7) respectively. The limiting arm (3) is provided with the highest height area (31), the fully closed area (32), the small angle area (33), and the first gear area (34) of the door in sequence along its axial direction. The door angle is controlled by controlling the sliders (7) in the upper and lower half-covers (4) to be simultaneously locked at different axial positions on the limiting arm (3).

2. The auxiliary door opening limiter according to claim 1, characterized in that: The highest height zone (31) is located closest to the vehicle body.

3. The auxiliary door opening limiter according to claim 1, characterized in that: A 30° inclined surface is provided between the highest height area (31) and the fully closed door area (32).

4. The auxiliary door opening limiter according to claim 1, characterized in that: The length of the fully closed area (32) of the car door is 2mm to 5mm. When the upper and lower sliders (7) are locked in the fully closed area (32), the car door is in the fully closed state.

5. The auxiliary door opening limiter according to claim 1, characterized in that: An inclined surface of 10° to 20° is provided between the fully closed area (32) of the car door and the small angle area (33) of the car door.

6. The auxiliary door opening limiter according to claim 1, characterized in that: After the car door is unlocked, the half-cover (4) is energized, and the force of the compression spring (6) causes the slider (7) to move to the right, so that the slider (7) is stuck in the small angle area (33) of the car door.

7. An auxiliary door opening limiter according to claim 6, characterized in that: When the slider (7) is engaged in the small angle area (33) of the car door, the car door is automatically opened by 5° to 15°.

8. An auxiliary door opening limiter according to claim 7, characterized in that: When the car door is opened, the straight-line distance between the edge of the door and the car body is less than the straight-line distance between the outer side of the rearview mirror and the car body.

9. An auxiliary door opening limiter according to claim 1, characterized in that: The radial height of the first gear area (34) of the door is higher than the radial height of the small angle area (33) of the door.

10. An auxiliary door opening limiter according to claim 1, characterized in that: When the slider (7) slides on the limit arm (3) to the first gear area (34) of the door, the door is in normal opening state.

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