Vehicle door self-limiting structure

Abstract

The utility model relates to the field of vehicle doors, and particularly discloses a vehicle door self-limiting structure. Comprising a hinge assembly and a limiting assembly, the hinge assembly comprises a female hinge and a male hinge which are hinged, the male hinge is U-shaped, the top and the bottom of the male hinge are opposite to the female hinge, the limiting assembly comprises a spring piece and a clamping plate, and the spring piece is arranged on the male hinge; the end, away from the female hinge, of the spring piece is an elastic part and can elastically deform towards the side close to the side wall of the male hinge. And the clamping plate is arranged on the female hinge and can be clamped with the leaf spring. The self-limiting structure of the vehicle door solves the problem that a limiting structure is in rigid contact and is easy to damage under the action of strong force.

Description

Technical Field

[0001] This utility model relates to the field of car doors, specifically to a car door self-limiting structure. Background Technology

[0002] Door hinges are primarily used to connect the door to the vehicle body, ensuring smooth opening and closing, supporting the door, providing structural strength, reducing noise, and facilitating maintenance. Traditionally, car doors have two hinges, one above the other. To prevent collisions between the door and the body, a door limiter is needed between the two hinges. However, standalone door limiters are expensive, and the structure of some body and door components makes their installation difficult.

[0003] Later, patent CN219012280U, titled "A Door Hinge Structure with Limiting Function for a Cab and Vehicle," was published. This design includes two parts: a hinge assembly and a limiting assembly. The hinge assembly is installed on the cab door and the cab body, and includes mounting plate I, mounting plate II, and a connecting shaft. The limiting assembly is fixed to the hinge assembly with bolts and includes a limiting rod and a limiting slot. When the door is opened to a certain angle, the limiting rod enters the limiting slot, and a magnet in the limiting slot fixes the limiting rod, thus achieving the door limiting function.

[0004] Although the aforementioned limiting components can limit the door and maintain its opening angle, the contact between the limiting rod and the side wall of the limiting slot is rigid. When the force required to open the door is large, the limiting rod is prone to collision with the limiting slot, which can cause the limiting rod to deform or even be damaged, thus losing its limiting effect. Utility Model Content

[0005] The present invention aims to provide a self-limiting structure for car doors to solve the problem that the limiting structure is a rigid contact and is easily damaged under strong force.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a self-limiting structure for a car door, comprising a hinge assembly and a limiting assembly. The hinge assembly includes a female hinge and a male hinge, which are hinged together. The male hinge is U-shaped, with its top and bottom opposite to the female hinge. The limiting assembly includes a spring plate and a retaining plate. The spring plate is disposed on the male hinge, and the end of the spring plate away from the female hinge is an elastic part that can elastically deform towards the side wall of the male hinge. The retaining plate is disposed on the female hinge and can engage with the spring plate.

[0007] The beneficial effects of this plan are:

[0008] The limiting component in this solution can replace the door limiter in the traditional door arrangement to limit the door and keep it in the open state. Compared with the existing limiting components, the spring sheet in this solution can undergo elastic deformation. Therefore, after the door is opened to a preset angle, the contact between the spring sheet and the plate is not rigid. Thus, when the door is opened, the spring sheet and the plate will not be damaged by a strong impact.

[0009] Secondly, the limiting components in this solution are spring plates and clamping plates, both of which are plate-shaped structures. They are easy to clean during use and will not accumulate dust, sludge, or other debris on the inside, unlike barrel-shaped structures which are difficult to clean.

[0010] Finally, in this solution, the door is limited by the cooperation between the spring sheet and the clamping plate, without the need to fix other structures on the spring sheet or clamping plate, which makes the processing of the limiting component simple and low-cost.

[0011] Furthermore, the spring sheet includes a mounting part and a snap-fit ​​part. The mounting part is connected to the male hinge, and the snap-fit ​​part is located on the side of the mounting part away from the female hinge. The snap-fit ​​part is provided with a protrusion, and the snap-fit ​​plate is provided with a snap-fit ​​groove that can cooperate with the protrusion.

[0012] The advantages of this solution are: the cooperation between the protrusion and the slot can automatically limit the movement of the car door, and the structure is simple.

[0013] Furthermore, the protrusion is a V-shaped structure formed by bending the sheet material.

[0014] The advantages of this solution are: the snap-fit ​​part can be quickly processed by stamping, further reducing manufacturing costs. When limiting the door, both ends of the snap-fit ​​part abut against the male hinge, at which point the V-shaped structure can maintain greater strength, and compared with the solid structure, the V-shaped structure is lighter.

[0015] Furthermore, an extension is provided on the side of the snap-fit ​​portion away from the mounting portion, and the extension can be attached to the side wall of the male hinge.

[0016] The beneficial effect of this solution is that when limiting the door, the contact area between the extension and the male hinge is larger, thus avoiding deformation of the male hinge.

[0017] Furthermore, the vertical distance between the snap-fit ​​part and the mounting plate is less than the vertical distance between the mounting part and the mounting plate, and a guide slope is provided between the snap-fit ​​part and the mounting part.

[0018] Furthermore, the card slot has a curved surface.

[0019] The beneficial effects of this solution are as follows: when the car door is opened, the latch plate will push the spring sheet to undergo elastic deformation. At this time, the guide slope plays a guiding role in the sliding between the two, so that the protrusion can be inserted into the slot more smoothly, and the opening of the car door will not have a jerky feeling.

[0020] Furthermore, there are two limiting components, and the spring plates of the two limiting components are respectively located on the two opposite side walls of the male hinge and on both sides of the female hinge.

[0021] The beneficial effect of this solution is that the two limiting components can better limit the movement of the car door.

[0022] Furthermore, the spring plate is connected to the male hinge by at least two fasteners.

[0023] The beneficial effects of this solution are: the two fasteners increase the fixing effect on the spring sheet while also preventing the spring sheet from rotating when under force, thus enabling it to be more securely engaged with the locking plate and limit the movement of the car door. Attached Figure Description

[0024] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0025] Figure 2 for Figure 1 A three-dimensional view of the central hinge;

[0026] Figure 3 for Figure 1 A three-dimensional view of the spring sheet. Detailed Implementation

[0027] The following detailed description illustrates the specific implementation method:

[0028] The reference numerals in the accompanying drawings include: male hinge 1, female hinge 2, locking plate 3, locking groove 31, spring plate 4, mounting part 41, protrusion 42, extension part 43, and inclined surface 44.

[0029] Example 1

[0030] Example 1 is basically as follows Figure 1 , Figure 2 and Figure 3 As shown, a self-limiting structure for a car door includes a hinge assembly and two limiting assemblies. The hinge assembly includes a female hinge 2 and a male hinge 1, which are hinged together. The male hinge 1 is a U-shaped structure with its opening facing right, and the top and bottom of the male hinge 1 are opposite to the top and bottom of the female hinge 2, respectively.

[0031] The two limiting components are respectively opposite to the top and bottom of the male hinge 1. Both limiting components include a spring plate 4 and a locking plate 3. The two locking plates 3 are integrally formed with the top and bottom of the female hinge 2. The top of the upper locking plate 3 is provided with an upward-opening locking groove 31, and the bottom of the lower locking plate 3 is provided with a downward-opening locking groove 31. The cross-section of both locking grooves 31 along the vertical direction is an arc surface.

[0032] The spring plate 4 is made of a metal material capable of elastic deformation. Two spring plates 4 are respectively installed on the top and bottom side walls of the male hinge 1 and are symmetrically arranged. In this embodiment, the structure and installation method of the spring plate 4 are described using the lower spring plate 4 as an example: The spring plate 4 includes a mounting part 41, a snap-fit ​​part, and an extension part 43 distributed from right to left. The mounting part 41, the snap-fit ​​part, and the extension part 43 are integrally formed. The right end of the mounting part 41 is lower than the lower snap-fit ​​plate 3, and the left end of the mounting part 41 is inclined upward. The left end of the mounting part 41 is at the same height as or slightly higher than the lower snap-fit ​​plate 3, ensuring that the spring plate 4 can deform downward when the lower snap-fit ​​plate 3 contacts the spring plate 4. At this time, a space is formed between the left end of the mounting part 41 and the bottom side wall of the male hinge 1, which allows the spring plate 4 to undergo elastic deformation. The width of the right end of the mounting part 41 is greater than the width of the left end, providing a larger installation space for the mounting part 41. The right end of the mounting part 41 is riveted to the bottom of the male hinge 1 by two rivets.

[0033] The latching part has an inverted V-shaped protrusion 42. In this embodiment, the protrusion 42 is a V-shaped structure formed by bending the sheet metal upwards. Specifically, the positions of the protrusion 42 and the latching groove 31 are determined according to the angle at which the car door needs to be limited, so that when the car door is opened to its maximum, the protrusion 42 can be locked into the latching groove 31 to limit the car door. Between the latching part and the mounting part 41 is an inclined surface 44 with the left end higher than the right end, which plays a buffering role when the latching plate 3 pushes the spring sheet 4 to deform when the car door is opened, and at the same time reduces the vibration of the car door.

[0034] The extension 43 is arranged laterally so that when the spring plate 4 deforms downward, the extension 43 is in contact with the bottom side wall of the male hinge 1, increasing the contact area between the extension 43 and the male hinge 1 and preventing the male hinge 1 from deforming.

[0035] The specific implementation process is as follows:

[0036] When the car door is opened, the female hinge 2 rotates clockwise relative to the male hinge 1. At this time, the retaining plate 3 rotates towards the side closer to the spring plate 4. When the retaining plate 3 contacts the mounting part 41, it causes the spring plate 4 to deform downward. Finally, the protrusion 42 engages with the retaining groove 31. Without external force, the female hinge 2 can no longer rotate forward or reverse to its original position. Since the female hinge 2 is fixed to the car door, the door is automatically limited at this time.

[0037] When the car door needs to be closed, a reverse force is applied to the car door manually, causing the female hinge 2 to rotate in the opposite direction, the protrusion 42 to disengage from the slot 31, and the spring plate 4 to automatically reset.

[0038] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A self-limiting structure for a vehicle door, comprising a hinge assembly and a limiting assembly, the hinge assembly comprising a female hinge and a male hinge, wherein the female hinge and the male hinge are hinged together, characterized in that: The male hinge is U-shaped, with its top and bottom facing the female hinge. The limiting components include a spring plate and a locking plate. The spring plate is located on the male hinge, and the end of the spring plate away from the female hinge is an elastic part that can elastically deform towards the side wall of the male hinge. The locking plate is located on the female hinge and can engage with the spring plate.

2. The self-limiting structure for a vehicle door according to claim 1, characterized in that: The spring sheet includes a mounting part and a snap-fit ​​part. The mounting part is connected to the male hinge, and the snap-fit ​​part is located on the side of the mounting part away from the female hinge. The snap-fit ​​part has a protrusion, and the snap-fit ​​plate has a snap-fit ​​groove that can cooperate with the protrusion.

3. The self-limiting structure for a vehicle door according to claim 2, characterized in that: The protrusion is a V-shaped structure formed by bending the sheet material.

4. The self-limiting structure for a vehicle door according to claim 2, characterized in that: An extension is provided on the side of the snap-fit ​​part away from the mounting part, and the extension can be attached to the side wall of the male hinge.

5. A self-limiting structure for a vehicle door according to claim 2, characterized in that: The vertical distance between the snap-fit ​​part and the mounting plate is less than the vertical distance between the mounting part and the mounting plate, and a guide slope is provided between the snap-fit ​​part and the mounting part.

6. A self-limiting structure for a vehicle door according to claim 2, characterized in that: The slot has a curved surface.

7. The self-limiting structure for a vehicle door according to claim 1, characterized in that: Two limiting components are provided, and the spring plates of the two limiting components are respectively located on the two opposite side walls of the male hinge and on both sides of the female hinge.

8. A self-limiting structure for a vehicle door according to claim 1, characterized in that: The spring plate is connected to the male hinge by at least two fasteners.

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