Automobile door opening mechanism and automobile

Abstract

This invention belongs to the field of vehicle technology, specifically relating to a car door opening mechanism and a car. It includes a linear guide rail, an arc-shaped guide rail, a supporting guide sleeve, and a door hinge. The door hinge passes through the supporting guide sleeve, and a guide member is provided on the door hinge. The arc-shaped guide rail is located on one side of the linear guide rail and connected to that end. It also includes a torsion spring and a second linear guide rail. The second linear guide rail is located on one side of the first linear guide rail. The torsion spring is sleeved on the door hinge, with one end fixed to the door hinge and the other end slidably connected to the second linear guide rail. When the guide member is on the first linear guide rail, the torsion spring is in a compressed state. When the guide member slides to the connection point between the arc-shaped guide rail and the first linear guide rail, the door hinge can rotate. The torsion spring releases torque energy to provide auxiliary force for the rotation of the door hinge. This invention makes the manual door opening action smoother and less strenuous, occupies less opening space, has fewer application limitations, and is applicable to a wider range of scenarios.

Description

Technical Field

[0001] This invention belongs to the field of vehicle technology, specifically relating to a car door opening mechanism and a car. Background Technology

[0002] Currently, hinged door structures are commonly used in automobiles. When opening, the side door opens to the side, requiring a large amount of clearance on both sides of the car, which can be obstructed in confined spaces. While side-sliding doors can reduce the space occupied when opening, they require a certain length of track on the side of the car for the door to move, which places certain requirements on the size of the car. For some small cars, such as two-seater cars, their external dimensions are limited, and there is not enough space on the side to install the track structure, thus limiting their application in small cars. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a car door opening mechanism and car that is smooth and labor-saving when manually opening the door, occupies little opening space, has fewer application limitations, and is applicable to a wider range of scenarios.

[0004] The present invention provides an automobile door opening mechanism, including a linear guide rail, an arc-shaped guide rail, a support guide sleeve, and a door hinge with one end for mounting the door. The axial direction of the support guide sleeve is parallel to the length direction of the linear guide rail. The door hinge passes through the support guide sleeve and can move and rotate within the support guide sleeve. The door hinge is provided with a guide member for sliding along the linear guide rail and the arc-shaped guide rail. The arc-shaped guide rail is located on one side of the linear guide rail and connected to that end of the linear guide rail. The radial direction of the arc-shaped guide rail is perpendicular to the axial direction of the door hinge.

[0005] It also includes a torsion spring and a second linear guide rail. The second linear guide rail is located on one side of the first linear guide rail and is parallel to the first linear guide rail. The torsion spring is sleeved on the door hinge. One end of the torsion spring is fixed to the door hinge, and the other end is slidably connected to the second linear guide rail. When the first guide member is located on the first linear guide rail, the torsion spring is in a compressed state. When the first guide member slides to the connection between the arc-shaped guide rail and the first linear guide rail, the door hinge can rotate. The torsion spring releases torque energy to provide auxiliary force for the rotation of the door hinge.

[0006] Furthermore, it also includes a rotational damper to provide damping force as the door hinge rotates.

[0007] Furthermore, the rotating part of the rotary damper is fixed to the door hinge, and a guide member two is provided on the fixed part of the rotary damper. The guide member two is slidably connected to the linear guide rail one.

[0008] Furthermore, the linear guide rail is provided with a linear groove, and the arc guide rail is provided with an arc groove along its own curvature. The arc groove and the linear groove are connected at the connection between the arc guide rail and the linear guide rail. When the guide member slides along the linear guide rail and the arc guide rail, it slides along the linear groove and the arc groove.

[0009] Furthermore, the guide member is cylindrical or spherical. When the guide member is cylindrical, its axis is perpendicular to the axis of the door hinge.

[0010] Furthermore, the support guide sleeve is provided in two sets, and the two sets of support guide sleeves are respectively set at both ends of the linear guide rail, and the door hinge passes through the two sets of support guide sleeves at the same time.

[0011] Furthermore, a retainer is provided on the door hinge, extending radially or tangentially along the door hinge, and one end of the torsion spring is fixed to the door hinge by the retainer.

[0012] Furthermore, it also includes a base, on which the first linear guide rail, the arc-shaped guide rail, and the second linear guide rail are all mounted, and the supporting guide sleeve is mounted on the base or the first linear guide rail.

[0013] Furthermore, the door hinge has a flange at one end for mounting the door.

[0014] The present invention also provides a car having a car door opening mechanism as described above.

[0015] The beneficial effects of this invention are as follows: When opening the door, pulling the door along the axial direction of the door hinge causes the guide component one to slide along the linear guide rail one, guiding the axial movement of the door hinge and limiting its circumferential movement. Combined with the linear guide rail two, this ensures that the torsion spring follows the axial movement of the door hinge and remains in an energy-storing state during this movement. When the guide component one slides to the connection point between the linear guide rail one and the arc-shaped guide rail, the door hinge loses its circumferential limitation in the direction of the arc-shaped guide rail. The torsion spring can then release its stored torque energy, providing auxiliary force for the rotation of the door hinge. In this position, there is a certain gap between the door and the side of the car body, preventing interference with other components on the side of the car body. Combined with the torque energy released by the torsion spring, the force required to rotate and open the door is greatly reduced. This allows the door to automatically rotate and open without interference, or to easily rotate and open with minimal manual force, making the opening action smoother and less strenuous.

[0016] When closing the door, rotate the door in the opposite direction. The force applied to the door, combined with the door's own weight, overcomes the torque of the torsion spring, causing the torsion spring to gradually compress. After rotating in the opposite direction, the guide slides to the connection point between the arc-shaped guide rail and the linear guide rail. Then, push the door inward until it fits against the side of the car body.

[0017] During the rotation of the door hinge, the guide component slides along the arc-shaped guide rail, which serves to guide the rotation and limit the axial movement of the door hinge, thereby improving the stability and reliability of the door opening process.

[0018] This car door opening mechanism minimizes the space occupied when the door is opened, making it suitable for opening doors in confined spaces. It also requires minimal installation space on the side of the car. Compared to electric drive, this invention allows for manual rotation and opening of the door with less force, resulting in a smooth and effortless opening process. Its simple structure and lower cost make it more suitable for small or low-cost cars, thus reducing application limitations and broadening the range of applicable scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first working state of the car door opening mechanism of the present invention.

[0020] Figure 2 For the present invention Figure 1 A schematic diagram showing the positions of guide component one and guide component two under the current state.

[0021] Figure 3 This is a schematic diagram of the second working state of the automobile door opening mechanism of the present invention.

[0022] Figure 4 For the present invention Figure 3 A schematic diagram showing the positions of guide component one and guide component two under the current state.

[0023] Figure 5 This is a schematic diagram of the vehicle door in the closed state according to the present invention.

[0024] Figure 6 This is a schematic diagram showing the state of the car door after the door hinge moves linearly according to the present invention.

[0025] Figure 7 This is a schematic diagram showing the state of the car door after the door hinge moves linearly and rotates according to the present invention.

[0026] In the diagram: 1. Linear guide rail one; 11. Linear slide rail; 2. Arc guide rail; 21. Arc slide rail; 3. Door hinge; 31. Guide component one; 32. Flange; 4. Support guide sleeve; 5. Torsion spring; 6. Linear guide rail two; 61. Slider; 7. Rotation damper; 71. Guide component two; 8. Fixing device; 9. Base; 100. Car door opening mechanism; 200. Car door. Detailed Implementation

[0027] like Figures 1-7As shown, the present invention provides a car door opening mechanism 100, which includes a linear guide rail 1, an arc-shaped guide rail 2, a support guide sleeve 4, and a door hinge 3. One end of the door hinge 3 is used to mount the car door 200. The support guide sleeve 4 is located on the side or end of the linear guide rail 1, and the axial direction of the support guide sleeve 4 is parallel to the length direction of the linear guide rail 1. The door hinge 3 passes through the support guide sleeve 4, and the axial direction of the door hinge 3 is in the same direction as the length direction of the linear guide rail 1. The door hinge 3 can move and rotate within the support guide sleeve 4, and the support guide sleeve 4 provides sliding and rolling support for the door hinge 3. A guide member 31 is provided on the door hinge 3, which slides along the linear guide rail 1 or along the arc-shaped guide rail 2 as the door hinge 3 moves or rotates. Figure 2 and Figure 4 As shown, the arc-shaped guide rail 2 is located on one end of the linear guide rail 1 and connected to that end of the linear guide rail 1. The center of the arc-shaped guide rail 2 is located on the axis of the door hinge 3, and the radial direction of the arc-shaped guide rail 2 is perpendicular to the axial direction of the door hinge 3. This ensures that when the guide member 31 is located at the connection between the arc-shaped guide rail 2 and the linear guide rail 1, it can slide along the arc-shaped guide rail 2 as the door hinge 3 rotates.

[0028] The car door opening mechanism 100 also includes a torsion spring 5 and a linear guide rail 2 6. The linear guide rail 2 6 is located on one side of the linear guide rail 1 and is parallel to the linear guide rail 1. The torsion spring 5 is sleeved on the door hinge 3. One end of the torsion spring 5 is fixed to the door hinge 3, that is, this end of the torsion spring 5 moves and rotates with the door hinge 3. A slider 61 is slidably arranged on the linear guide rail 2 6. The other end of the torsion spring 5 is fixed to the slider 61, so that this end of the torsion spring 5 is slidably connected to the linear guide rail 2 6, so that when the door hinge 3 moves linearly, the torsion spring 5 as a whole can move linearly synchronously with the door hinge 3.

[0029] like Figure 1 and Figure 2 As shown, when guide member 31 is located on linear guide rail 1, torsion spring 5 is in a compressed state, i.e., an energy-storing state. The cooperation between guide member 31 and linear guide rail 1 can limit the door hinge 3 in the circumferential direction, preventing the door hinge 3 from rotating due to the force of torsion spring 5 when guide member 31 is on the linear guide rail. When guide member 31 slides to the connection between arc guide rail 2 and linear guide rail 1, the door hinge 3 loses the circumferential constraint and can rotate. Torsion spring 5 releases torque energy, providing auxiliary force for the rotation of door hinge 3.

[0030] When the car door opening mechanism 100 provided by the present invention is applied to a car, the door 200 is installed at one end of the door hinge 3. When the door is opened, the door 200 is pulled along the axial direction of the door hinge 3. The guide member 31 slides along the linear guide rail 1 as the door hinge 3 moves axially, playing a guiding role for the axial movement of the door hinge 3 and a limiting role for the circumferential movement of the door hinge 3. Combined with the setting of the linear guide rail 6, it can ensure that the torsion spring 5 follows the axial movement of the door hinge 3 and ensures that the torsion spring 5 is always in an energy-storing state when the door hinge 3 moves axially. When guide component 31 slides to the connection point between linear guide rail 1 and arc-shaped guide rail 2, the door hinge 3 loses its circumferential limit in the direction of arc-shaped guide rail 2. Torsion spring 5 releases its stored torque energy, providing auxiliary force for the rotation of door hinge 3. In this position, there is a certain gap between the door 200 and the side of the car body, preventing interference with other parts of the car body. Combined with the torque energy released by torsion spring 5, the force required to rotate and open the door is greatly reduced. The door 200 can be automatically rotated open or easily rotated open with minimal manual force, avoiding interference. The opening action is smoother and less strenuous. When closing the door, rotating the door 200 in the opposite direction, the force applied to the door 200, combined with the door 200's own weight, overcomes the torque of torsion spring 5, causing it to gradually compress. After rotating in the opposite direction, guide component 31 slides to the connection point between arc-shaped guide rail 2 and linear guide rail 1, and then the door 200 is pushed inward until it fits against the side of the car body. During the rotation of the door hinge 3, which causes the door 200 to rotate, the guide member 31 slides along the arc-shaped guide rail 2, serving as a rotation guide and axial limit for the door hinge 3, thereby improving the stability and reliability of the door opening process.

[0031] The car door opening mechanism 100 minimizes the space occupied when the door 200 is opened, making it suitable for opening needs in confined spaces. It also requires less installation space on the side of the car. Compared to electric power drive, this invention enables the door 200 to be manually rotated and opened with less force, resulting in a smooth and effortless opening process. The structure is simple and the cost is lower, making it more suitable for small cars or low-cost cars. Therefore, it has fewer limitations in application and can be applied to a wider range of scenarios.

[0032] The invention also includes a rotary damper 7, which provides damping force when the door hinge 3 rotates, buffering the rotation of the door hinge 3 and preventing excessive instantaneous torque generated when the torsion spring 5 releases torque energy, thus avoiding impact on the car door 200 and further improving the stability and reliability of the rotating door opening process. The door hinge 3 is the rotation axis of the car door 200. Preferably, the torque of the rotary damper 7 is greater than or equal to the torque generated during the rotational opening and closing of the car door 200 and the torque value after the torsion spring 5 cancels it out, but will not exceed the comfortable force value required by a person when rotating the car door. The specific magnitude relationship is:

[0033] ① Under any condition: the torque of the torsion spring is greater than or equal to the torque of the door's weight relative to the rotation axis;

[0034] ② Under any condition: The torque of the rotation damper ≥ (torsion spring torque - torque generated by the weight of the door during rotation);

[0035] ③ Under any condition: [Torque of the rotary damper - (torque of the torsion spring - torque generated by the weight of the door during rotation)] ∈ the range of human comfort torque.

[0036] The comfort force value and the human-powered comfort torque range can be used as reference data based on the theoretical average grip strength and pulling force range of the target vehicle's target users during actual production, and are not specifically limited here. Under the damping force of the aforementioned rotary damper 7, smooth and effortless door opening and closing actions are achieved, while also allowing the door 200 to be suspended in any position. The degree of door opening can be controlled according to the actual parking space size, that is, the rotation angle of the door 200 when opening can be controlled, which can avoid collisions caused by the door being fully opened in scenarios where the space is small and the door cannot be fully opened, further improving the flexibility of opening the door in confined spaces.

[0037] The rotary damper 7 is specifically configured as follows: the rotary damper 7 is sleeved on the door hinge 3, the rotating part of the rotary damper 7 is fixed to the door hinge 3, and a guide member 2 71 is provided on the fixed part of the rotary damper 7. The guide member 2 71 is slidably connected to the linear guide rail 1. When the door hinge 3 is opened, the guide member 2 71 is located behind the guide member 1 31 in the axial movement direction. When the guide member 1 31 is located on the linear guide rail 1 or the arc-shaped guide rail 2, the guide member 2 71 is located on the linear guide rail 1, so that the rotary damper 7 as a whole can move axially with the door hinge 3. When the door hinge 3 rotates, the guide member 2 71 provides circumferential limitation for the fixed part of the rotary damper 7, so that only the rotating part of the rotary damper 7 rotates with the door hinge 3, thereby generating damping.

[0038] In some embodiments of the present invention, the connection between the linear guide rail 1 and the arc-shaped guide rail 2 is an arc transition, so that the guide member 31 located on the linear guide rail 1 can slide along the connection to the arc-shaped guide rail 2.

[0039] In a preferred embodiment of the present invention, the linear guide rail 1 is provided with a linear groove 11, and the arc-shaped guide rail 2 is provided with an arc-shaped groove 21 along its own curvature. The arc-shaped groove 21 and the linear groove 11 are connected at the connection between the arc-shaped guide rail 2 and the linear guide rail 1. When the guide member 31 slides along the linear guide rail and the arc-shaped guide rail 2, it slides along the linear groove 11 and the arc-shaped groove 21, which reduces the difficulty of the guide member 31 sliding along the connection to the arc-shaped guide rail 2 and improves the smoothness of the guide member 31 when passing through the connection.

[0040] In the preferred embodiment described above, the guide member 31 is cylindrical or spherical, further improving the smoothness of sliding. When the guide member 31 is cylindrical, it can be a follower or a rolling bearing, with its axis perpendicular to the axis of the door hinge 3. The guide member 71 is also preferably cylindrical or spherical.

[0041] Two sets of support guide sleeves 4 are provided, and the two sets of support guide sleeves 4 are correspondingly set at both ends of the linear guide rail 1. The door hinge 3 passes through both sets of support guide sleeves 4 to improve the stability of the door hinge 3's movement guidance and rolling support. The support guide sleeves 4 are preferably bushings to reduce the friction force when the door hinge 3 moves and rotates, thereby reducing the door opening resistance.

[0042] A retainer 8 is provided on the door hinge 3. The retainer 8 moves and rotates with the door hinge 3, and extends radially or tangentially along the door hinge 3. One end of the torsion spring 5 is fixed to the door hinge 3 by the retainer 8. Due to the structural characteristics of the torsion spring 5, its end is extended. By providing the retainer 8, it is easier to fix this end of the torsion spring 5. Preferably, the retainer 8 is provided with a fixing groove, and the end of the torsion spring 5 is fixed in the fixing groove, which facilitates the assembly and disassembly of the torsion spring 5 and the retainer 8, and makes it convenient to replace the torsion spring 5 according to the weight of different doors 200.

[0043] In one embodiment of the present invention, the linear guide rail 1, the arc guide rail 2, and the linear guide rail 6 are installed inside the vehicle body, and the support guide sleeve 4 is disposed inside the vehicle body or on the linear guide rail 1. That is, the vehicle door opening mechanism 100 is assembled based on the vehicle body.

[0044] In another embodiment of the invention, a base 9 is also included, and the linear guide rail 1, the arc guide rail 2, and the linear guide rail 6 are all mounted on the base 9. The support guide sleeve 4 is mounted on the base 9 or the linear guide rail 1. This embodiment allows the car door opening mechanism 100 to be assembled as a whole and then installed on the car body, reducing the difficulty of installation on the car body.

[0045] The door hinge 3 has a flange 32 at one end for mounting the door 200 to facilitate the fixing of the door 200.

[0046] The present invention also provides an automobile, wherein an automobile door opening mechanism 100 is disposed on the automobile body, and one end of the door hinge 3 having a flange 32 is fixed to the door 200, specifically fixed to one side of the door 200, to ensure that the door 200 can be fully opened by rotation. The closed state is as follows: Figure 5 As shown, the state of the car door 200 after being pulled along the axial direction of the door hinge 3 is as follows: Figure 6 As shown, the state after rotating the car door 200 degrees to open is as follows. Figure 7As shown. Because the car is equipped with the aforementioned door opening mechanism 100, it can be easily rotated open manually with minimal force, avoiding interference. This makes the opening action smoother and less strenuous. Furthermore, it requires less installation space on the side of the car, has a simpler structure, and lower cost, thus reducing overall vehicle cost. Additionally, the door 200 occupies little space when open, making it suitable for use in confined spaces, reducing the car's limitations in such environments and broadening its applicable scenarios.

[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0048] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A car door opening mechanism, characterized in that: It includes a linear guide rail (1), an arc-shaped guide rail (2), a support guide sleeve (4), and a door hinge (3) with one end for mounting a car door (200). The axial direction of the support guide sleeve (4) is parallel to the length direction of the linear guide rail (1). The door hinge (3) passes through the support guide sleeve (4) and can move and rotate within the support guide sleeve (4). The door hinge (3) is provided with a guide member (31) for sliding along the linear guide rail (1) and the arc-shaped guide rail (2). The arc-shaped guide rail (2) is located on one side of the linear guide rail (1) and connected to that end of the linear guide rail (1). The radial direction of the arc-shaped guide rail (2) is perpendicular to the axial direction of the door hinge (3). It also includes a torsion spring (5) and a second linear guide rail (6). The second linear guide rail (6) is located on one side of the first linear guide rail (1) and is parallel to the first linear guide rail (1). The torsion spring (5) is sleeved on the door hinge (3). One end of the torsion spring (5) is fixed to the door hinge (3), and the other end is slidably connected to the second linear guide rail (6). When the first guide member (31) is located on the first linear guide rail (1), the torsion spring (5) is in a compressed state. When the first guide member (31) slides to the connection between the arc-shaped guide rail (2) and the first linear guide rail (1), the door hinge (3) can rotate. The torsion spring (5) releases torque energy to provide auxiliary force for the rotation of the door hinge (3).

2. The automobile door opening mechanism as described in claim 1, characterized in that, It also includes a rotational damper (7) for providing damping force when the door hinge (3) rotates.

3. The automobile door opening mechanism as described in claim 2, characterized in that, The rotating part of the rotary damper (7) is fixed to the door hinge (3), and a guide member (71) is provided on the fixed part of the rotary damper (7). The guide member (71) is slidably connected to the linear guide rail (1).

4. The automobile door opening mechanism as described in any one of claims 1-3, characterized in that, The linear guide rail (1) is provided with a linear groove (11), and the arc guide rail (2) is provided with an arc groove (21) along its own curvature. The arc groove (21) and the linear groove (11) are connected at the connection between the arc guide rail (2) and the linear guide rail (1). When the guide member (31) slides along the linear guide rail and the arc guide rail (2), it slides along the linear groove (11) and the arc groove (21).

5. The automobile door opening mechanism as described in claim 4, characterized in that, The guide member (31) is cylindrical or spherical. When the guide member (31) is cylindrical, its axis is perpendicular to the axis of the door hinge (3).

6. The automobile door opening mechanism as described in any one of claims 1-3 and 5, characterized in that, The support guide sleeve (4) is provided in two sets, and the two sets of support guide sleeve (4) are respectively set at both ends of the linear guide rail (1). The door hinge (3) passes through the two sets of support guide sleeve (4) at the same time.

7. The automobile door opening mechanism as described in any one of claims 1-3 and 5, characterized in that, A retainer (8) is provided on the door hinge (3). The retainer (8) extends radially or tangentially along the door hinge (3). The door hinge (3) fixes one end of the torsion spring (5) through the retainer (8).

8. The automobile door opening mechanism as described in any one of claims 1-3 and 5, characterized in that, It also includes a base (9), and the linear guide rail one (1), the arc guide rail (2) and the linear guide rail two (6) are all set on the base (9), and the support guide sleeve (4) is set on the base (9) or the linear guide rail one (1).

9. The automobile door opening mechanism as described in any one of claims 1-3 and 5, characterized in that, The door hinge (3) has a flange (32) at one end for mounting the door (200).

10. A car characterized by, The vehicle door opening mechanism (100) is provided as described in any one of claims 1-9.

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