Scissor door hinge and vehicle

Abstract

The application relates to a scissor door hinge and a vehicle, and belongs to the technical field of automobile door hinges. The hinge base is provided with a first shaft seat and a second shaft seat; the hinge arm comprises a hinge outer arm for connecting a door and a hinge inner arm; the space connecting rod comprises a first connecting rod rotationally connected between the first shaft seat and the hinge inner arm, and a connecting rod assembly rotationally connected between the second shaft seat and the hinge outer arm; the hinge base, the hinge arm and the space connecting rod jointly form a Bennett mechanism for enabling the hinge arm to move along a set space track. The scissor door hinge adopts the Bennett mechanism formed by the hinge base, the hinge arm and the space connecting rod, has only one determined activity degree of freedom, can simplify the movement of the door in three directions (XYZ) into the coordinated rotation of four pin shafts when the door is opened or closed, realizes the functions that the hinge arm opens the door in a curve and obliquely upwards and closes the door in a curve and obliquely downwards, and the movement process is continuous, smooth, stable and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile door hinges, in particular to a scissor door hinge and a vehicle. BACKGROUND

[0002] As a personalized design, the scissor door is generally only applied to supercars. Its unique and novel door opening and closing method makes the vehicle more technological and futuristic, and always attracts the attention of many users. Nowadays, it has become a big selling point of many manufacturers' designs. Some modified scissor doors often appear on the market, but their opening method is generally to open to the maximum opening degree first, and then to open to the maximum position by turning up, and vice versa when closing. The actions of opening or closing the door need to be implemented in two steps, and the door can only be opened or closed in a single direction at each step. This opening method has poor user experience, the movement is not very smooth, and the human-machine operability when opening and closing the door is also poor.

[0003] The existing domestic automobile scissor door hinge, for example, Chinese patent CN202010550793.X, patent name "a door hinge and a vehicle", the door hinge discloses a hinge mounting seat, a hinge height shaft block, a hinge arm, a hinge opening degree shaft block, which are connected to each other by four hinge shafts, and form four rotation axes, i.e. a first rotation axis, a second rotation axis, a third rotation axis and a fourth rotation axis, and the four rotation axes intersect at a point, and the intersection point is located on the hinge height shaft block.

[0004] The above scheme can realize the oblique upward opening of the door, i.e. opening outward while opening upward, avoiding some problems existing in the above-mentioned after-sales modified scissor door. However, this scheme requires that the four shafts intersect at a point, which requires extremely high manufacturing and assembly precision, otherwise it is easy to cause unsmooth movement of the mechanism, jamming and other adverse phenomena, and the product failure rate is high. At the same time, the technical scheme of the four shafts intersecting at a point has more restrictions and constraints on the layout space of the vehicle body side wall, and it is difficult to adjust and quickly adapt the system structure.

[0005] For example, Chinese patent CN202111589615.9, patent name "a scissor door hinge and a vehicle", discloses a scissor door hinge structure, which connects the hinge base, hinge arm, main connecting shaft block and connecting assembly of the hinge by six rotating shafts to realize the movement of the mechanism and realize the arc upward opening and arc downward closing.

[0006] But the scheme requires: the first rotation axis, the second rotation axis, the third rotation axis intersect at a point, the fourth rotation axis, the fifth rotation axis, the sixth rotation axis intersect at a point. The manufacturing link, the assembly link precision requirement is extremely high, otherwise the mechanism movement is not smooth, the bad phenomenon such as jamming, the product is not good rate is higher. At the same time, six axes intersect at two points, the restriction and constraint of the layout space of the body side wall are more, the design layout difficulty is higher, the adjustment and quick adaptation of the system structure are not easy. SUMMARY

[0007] Embodiments of the present application provide a scissor door hinge and a vehicle to solve the problem that the door hinge structure in the related art requires extremely high manufacturing and assembly precision, and the mechanism is prone to have the phenomenon of unsmooth movement, jamming and other adverse phenomena, and the product has a high defective rate.

[0008] The first aspect of the embodiments of the present application provides a scissor door hinge, comprising:

[0009] A hinge base, wherein the hinge base is provided with a first shaft seat and a second shaft seat;

[0010] A hinge arm, wherein the hinge arm comprises a hinge outer arm for connecting a door and a hinge inner arm;

[0011] A space connecting rod, wherein the space connecting rod comprises a first connecting rod rotationally connected between the first shaft seat and the hinge inner arm, and a connecting rod assembly rotationally connected between the second shaft seat and the hinge outer arm;

[0012] The connecting rod assembly comprises a second connecting rod, a third connecting rod and a fourth connecting rod rotationally connected in sequence;

[0013] The hinge base, the hinge arm and the space connecting rod jointly constitute a Bennett mechanism for enabling the hinge arm to move along a set space trajectory.

[0014] In some embodiments: one end of the first connecting rod is rotationally connected with the first shaft seat by a first shaft pin and forms a first rotation axis;

[0015] The other end of the first connecting rod is rotationally connected with the hinge inner arm by a second shaft pin and forms a second rotation axis;

[0016] One end of the second connecting rod is rotationally connected with the second shaft seat by a third shaft pin and forms a third rotation axis;

[0017] The other end of the second connecting rod is rotationally connected with the hinge outer arm by a fourth shaft pin and forms a fourth rotation axis.

[0018] In some embodiments: the line between the first shaft seat and the second shaft seat is perpendicular to the first rotation axis and the third rotation axis;

[0019] The line between the outer arm and the inner arm is perpendicular to the second and fourth rotation axes;

[0020] The line between the two ends of the first connecting rod is perpendicular to the first and second rotation axes;

[0021] The line between the two ends of the second connecting rod is perpendicular to the third and fourth rotation axes.

[0022] In some embodiments: the length of the line between the first and second shaft seats is equal to the length of the line between the outer arm and the inner arm, and the length of the line is a;

[0023] The length of the line between the two ends of the first connecting rod is equal to the length of the line between the two ends of the second connecting rod, and the length of the line is b;

[0024] The spatial angle between the first and third rotation axes is equal to the spatial angle between the second and fourth rotation axes, and the spatial angle is A;

[0025] The spatial angle between the first and second rotation axes is equal to the spatial angle between the third and fourth rotation axes, and the spatial angle is B;

[0026] And a / sin A = b / sin B.

[0027] In some embodiments: the length of the line between the first and second shaft seats, the length of the line between the outer arm and the inner arm, the length of the line between the two ends of the first connecting rod, and the length of the line between the two ends of the second connecting rod are all equal;

[0028] The spatial angle between the first and third rotation axes, the spatial angle between the second and fourth rotation axes, the spatial angle between the first and second rotation axes, and the spatial angle between the third and fourth rotation axes are all equal.

[0029] In some embodiments: the second and third connecting rods are connected by a pin shaft and form a fifth rotation axis, and the third and fourth connecting rods are connected by a pin shaft and form a sixth rotation axis;

[0030] The second connecting rod is connected by a pin shaft with the second shaft seat and forms a third rotation axis, and the fourth connecting rod is connected by a pin shaft with the outer arm and forms a fourth rotation axis;

[0031] The fifth, sixth, and fourth rotation axes intersect at one point, or the fifth, sixth, and third rotation axes intersect at one point.

[0032] In some embodiments: further comprising a driving member for driving the hinge arm to rotate along a set trajectory, the driving member comprising a telescopic strut, a bottom of the telescopic strut being rotatably connected to a vehicle body side wall support through a lower strut mounting pin, and a top of the telescopic strut being rotatably connected to the hinge arm through an upper strut mounting pin.

[0033] In some embodiments: further comprising a limiting component, the limiting component comprising a limiting support fixedly connected to the bottom of the hinge arm and the vehicle body side wall, the limiting support being provided with a buffer block and a limiting support mounting hole for fixing the limiting support to the vehicle body side wall;

[0034] The bottom of the hinge arm is provided with a limiting screw abutting against the buffer block, the limiting screw being threadedly connected to the hinge arm and the length of the limiting screw being adjustable.

[0035] In some embodiments: a plurality of vehicle body side wall assembly holes for fixing the hinge base to the vehicle body side wall are formed in the hinge base, and a plurality of vehicle door assembly holes for fixing the hinge arm to the vehicle door are formed in the hinge arm.

[0036] The second aspect of the embodiments of the present application provides a vehicle, which comprises the scissor door hinge according to any one of the above embodiments, and a vehicle body side wall and a vehicle door connected to the scissor door hinge.

[0037] The technical scheme provided by the present application has the following beneficial effects:

[0038] The scissor door hinge and the vehicle provided by the embodiments of the present application have the following beneficial effects: the hinge base, the hinge arm and the space connecting rod jointly constitute a Bennett mechanism for enabling the hinge arm to move along a set space trajectory, the Bennett mechanism has a unique determined degree of freedom of movement, the movement of the vehicle door in three directions (X, Y and Z) can be simplified into the coordinated rotation of four pin shafts when the vehicle door is opened or closed, the hinge arm can be used to open the vehicle door in a curve and obliquely upward and to close the vehicle door obliquely downward, and the movement process is continuous, smooth, stable and reliable.

[0039] Therefore, the scissor door hinge provided by the present application adopts the Bennett mechanism jointly constituted by the hinge base, the hinge arm and the space connecting rod for enabling the hinge arm to move along a set space trajectory, the Bennett mechanism has a unique determined degree of freedom of movement, the movement of the vehicle door in three directions (X, Y and Z) can be simplified into the coordinated rotation of four pin shafts when the vehicle door is opened or closed, the hinge arm can be used to open the vehicle door in a curve and obliquely upward and to close the vehicle door obliquely downward, and the movement process is continuous, smooth, stable and reliable.

[0040] In addition, the scissor door hinge, the hinge base and the hinge arm of the embodiment of the present application are connected by a space linkage, and only three components are needed to form a space four-link mechanism, the structure is simpler, the arrangement and design are more flexible, and the adjustment is faster and easier. Meanwhile, the linkage assembly comprises the second linkage, the third linkage and the fourth linkage which are sequentially rotationally connected, the position interference between the linkage assembly and the surrounding parts is avoided, the spatial position arrangement is more flexible, and the installation is convenient, the manufacturing and assembly precision requirements are greatly lower, the product qualification rate is greatly improved, and the product can be applied to batch production. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0042] Figure 1 The structure schematic diagram of the closed state of the scissor door hinge of the embodiment of the present application is shown in FIG. 1.

[0043] Figure 2 The structure schematic diagram of the unfolded state of the scissor door hinge of the embodiment of the present application is shown in FIG. 2.

[0044] Figure 3 The structure schematic diagram of the hinge base of the embodiment of the present application is shown in FIG. 3.

[0045] Figure 4 The structure schematic diagram of the first linkage of the embodiment of the present application is shown in FIG. 4.

[0046] Figure 5 The structure schematic diagram of the hinge arm of the embodiment of the present application is shown in FIG. 5.

[0047] Figure 6 The structure schematic diagram of the body side wall support of the embodiment of the present application is shown in FIG. 6.

[0048] Figure 7 The structure schematic diagram of the limiting support of the embodiment of the present application is shown in FIG. 7.

[0049] Figure 8 The structure schematic diagram of the second linkage of the embodiment of the present application is shown in FIG. 8.

[0050] Figure 9 The structure schematic diagram of the third linkage of the embodiment of the present application is shown in FIG. 9.

[0051] Figure 10 The structure schematic diagram of the fourth linkage of the embodiment of the present application is shown in FIG. 10.

[0052] Figure 11Structure schematic view of the scissor door hinge of the embodiment of the present application in a closed state mounted on a vehicle body side wall;

[0053] Figure 12 Structure schematic view of the scissor door hinge of the embodiment of the present application in a first perspective view in an unfolded state mounted on a vehicle body side wall;

[0054] Figure 13 Structure schematic view of the scissor door hinge of the embodiment of the present application in a second perspective view in an unfolded state mounted on a vehicle body side wall;

[0055] Figure 14 Structure schematic view of the vehicle of the embodiment of the present application in a first perspective view with a door unfolded;

[0056] Figure 15 Structure schematic view of the vehicle of the embodiment of the present application in a second perspective view with a door unfolded.

[0057] Reference signs:

[0058] 1, hinge base; 2, space connecting rod; 3, hinge arm; 4, telescopic support rod; 5, vehicle body side wall support; 6, limiting support; 11, first shaft seat; 12, second shaft seat; 13, vehicle body side wall assembly hole; 21, first connecting rod; 22, connecting rod assembly; 23, second connecting rod; 24, third connecting rod; 25, fourth connecting rod; 31, hinge inner arm; 32, hinge outer arm; 33, upper support rod mounting pin; 34, limiting screw; 35, door assembly hole; 51, lower support rod mounting pin; 52, vehicle body side wall support mounting hole; 61, buffer block; 62, bolt; 63, limiting support mounting hole; 100, scissor door hinge; 200, vehicle body side wall; 300, door; 1A, first rotation axis; 2A, second rotation axis; 1B, third rotation axis; 2B, fourth rotation axis; 3A, fifth rotation axis; 3B, sixth rotation axis. DETAILED DESCRIPTION

[0059] To make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0060] The embodiments of the present application provide a scissor door hinge and a vehicle, which can solve the problem that the door hinge structure in the related art requires extremely high manufacturing and assembly precision, and the mechanism is prone to have adverse phenomena such as unsmooth movement and jamming, and has a high product failure rate.

[0061] Reference Figures 1 to 10As shown, the first aspect of the embodiments of the present application provides a scissor door hinge, which comprises:

[0062] The hinge base 1 is used to install the scissor door hinge 100 on the body side wall 200, and comprises a mounting plate, a first shaft seat 11 and a second shaft seat 12 are arranged on the mounting plate, shaft pin holes are arranged on the first shaft seat 11 and the second shaft seat 12, and the first shaft seat 11 and the second shaft seat 12 are arranged along the X-axis direction on the mounting plate. In the present application, the X-axis direction is the length direction of the vehicle, the Z-axis direction is the height direction of the vehicle, and the Y-axis direction is the width direction of the vehicle.

[0063] The hinge arm 3 is used to install the scissor door hinge 100 on the vehicle door 300, and comprises a hinge outer arm 32 and a hinge inner arm 31 for connecting the vehicle door 300; the hinge outer arm 32 and the hinge inner arm 31 are arranged along the X-axis direction, and the hinge outer arm 32 and the hinge inner arm 31 are connected into one body through a connecting rib. The top of the hinge outer arm 32 and the hinge inner arm 31 is provided with a shaft pin hole.

[0064] The space connecting rod 2 is used to rotationally connect the hinge base 1 and the hinge arm 3, and comprises a first connecting rod 21 rotationally connected between the first shaft seat 11 and the hinge inner arm 31, and a connecting rod assembly 22 rotationally connected between the second shaft seat 12 and the hinge outer arm 32, the connecting rod assembly comprising a second connecting rod 23, a third connecting rod 24 and a fourth connecting rod 25 connected in sequence. The two ends of the first connecting rod 21 and the connecting rod assembly 22 are provided with shaft pin holes, the two ends of the first connecting rod 21 are rotationally connected with the first shaft seat 11 and the hinge inner arm 31 through shaft pins, and the two ends of the connecting rod assembly 22 are rotationally connected with the second shaft seat 12 and the hinge outer arm 32 through shaft pins.

[0065] The hinge base 1, the hinge arm 3 and the space connecting rod 2 jointly constitute a Bennett mechanism for enabling the hinge arm 3 to move along a set space trajectory, and the scissor door hinge 100 forms a Bennett mechanism with a unique degree of freedom of space movement trajectory. When the scissor door hinge 100 is unfolded or closed, the movement of the vehicle door 300 in three directions of XYZ can be simplified into the coordinated rotation of four pin shafts, so as to realize the functions of opening the vehicle door in a curve and obliquely upward and closing the vehicle door obliquely downward, and the movement process is continuous, smooth, stable and reliable.

[0066] The scissor door hinge 100 of the embodiment of the present application adopts the hinge base 1, the hinge arm 3 and the space connecting rod 2 to jointly constitute a Bennett mechanism for enabling the hinge arm 3 to move along a set space track, the Bennett mechanism has a unique active degree of freedom, and can enable the vehicle door 300 to simplify the movement of the vehicle door in three directions of XYZ into the coordinated rotation of four pin shafts when the vehicle door is opened or closed, thereby realizing the function of opening the vehicle door obliquely upward and closing the vehicle door obliquely downward along a curve by the hinge arm 3, and the movement process is continuous, smooth, stable and reliable.

[0067] In addition, the scissor door hinge 100 of the embodiment of the present application adopts the space connecting rod 2 to connect the hinge base 1 and the hinge arm 3, and only three components are needed to constitute a space four-connecting rod mechanism, the structure is simpler, the arrangement and design are more flexible, and the adjustment is faster and easier. Meanwhile, the connecting rod assembly 22 includes the second connecting rod 23, the third connecting rod 24 and the fourth connecting rod 25 which are sequentially rotationally connected, the position interference between the connecting rod assembly 22 and the surrounding parts is avoided, the spatial position arrangement is more flexible, and the installation is convenient, the manufacturing and assembly precision requirements are greatly lower, the product qualification rate is greatly improved, and the product can be applied to batch production.

[0068] In some optional embodiments, referring to Figures 1 to 10 The scissor door hinge 100 of the embodiment of the present application is provided, one end of the first connecting rod 21 is rotationally connected with the first shaft seat 11 through a first shaft pin and forms a first rotation axis 1A. The other end of the first connecting rod 21 is rotationally connected with the hinge inner arm 31 through a second shaft pin and forms a second rotation axis 2A.

[0069] One end of the connecting rod assembly 22 is rotationally connected with the second shaft seat 12 through a third shaft pin and forms a third rotation axis 1B, and the other end of the connecting rod assembly 22 is rotationally connected with the hinge outer arm 32 through a fourth shaft pin and forms a fourth rotation axis 2B.

[0070] The connecting line between the first shaft seat 11 and the second shaft seat 12 is perpendicular to the first rotation axis 1A and the third rotation axis 1B. The connecting line between the hinge outer arm 32 and the hinge inner arm 31 is perpendicular to the second rotation axis 2A and the fourth rotation axis 2B. The connecting line between the two ends of the first connecting rod 21 is perpendicular to the first rotation axis 1A and the second rotation axis 2A. The connecting line between the two ends of the connecting rod assembly 22 is perpendicular to the third rotation axis 1B and the fourth rotation axis 2B.

[0071] The length of the line between the first shaft seat 11 and the second shaft seat 12 is equal to the length of the line between the hinge outer arm 32 and the hinge inner arm 31, and the length of the line is a. The length of the line at both ends of the first connecting rod 21 is equal to the length of the line at both ends of the connecting rod assembly 22, and the length of the line is b. The spatial angle between the first rotation axis 1A and the third rotation axis 1B is equal to the spatial angle between the second rotation axis 2A and the fourth rotation axis 2B, and the spatial angle between the first rotation axis 1A and the third rotation axis 1B is equal to the spatial angle between the second rotation axis 2A and the fourth rotation axis 2B, which is A.

[0072] The spatial angle between the first rotation axis 1A and the second rotation axis 2A is equal to the spatial angle between the third rotation axis 1B and the fourth rotation axis 2B, and the spatial angle between the first rotation axis 1A and the second rotation axis 2A is equal to the spatial angle between the third rotation axis 1B and the fourth rotation axis 2B, which is B. Moreover, the linear distance a and the spatial angle A of the first rotation axis 1A and the second rotation axis 2A and the linear distance b and the spatial angle B of the third rotation axis 1B and the fourth rotation axis 2B are in a sine relationship, that is, a / sinA = b / sinB.

[0073] In some optional embodiments, referring to Figures 1 to 10 As shown in the figure, the embodiment of the present application provides a scissors door hinge. The length of the line between the first shaft seat 11 and the second shaft seat 12, the length of the line between the hinge outer arm 32 and the hinge inner arm 31, the length of the line at both ends of the first connecting rod 21, and the length of the line at both ends of the connecting rod assembly 22 are equal. The spatial angle between the first rotation axis 1A and the third rotation axis 1B, the spatial angle between the second rotation axis 2A and the fourth rotation axis 2B, the spatial angle between the first rotation axis 1A and the second rotation axis 2A, and the spatial angle between the third rotation axis 1B and the fourth rotation axis 2B are all equal.

[0074] In some optional embodiments, referring to Figures 1 to 10 As shown in the figure, the embodiment of the present application provides a scissors door hinge. The second connecting rod 23 and the third connecting rod 24 are rotatably connected through a pin shaft and form a fifth rotation axis 3A, and the third connecting rod 24 and the fourth connecting rod 25 are rotatably connected through a pin shaft and form a sixth rotation axis 3B. The second connecting rod 23 is rotatably connected with the second shaft seat 12 through a pin shaft and forms a third rotation axis 1B, and the fourth connecting rod 25 is rotatably connected with the hinge outer arm 32 through a pin shaft and forms a fourth rotation axis 2B. The fifth rotation axis 3A, the sixth rotation axis 3B, and the fourth rotation axis 2B intersect at a point.

[0075] Alternatively, the second link 23 and the third link 24 are connected by a pin shaft and form a fifth rotation axis 3A, and the third link 24 and the fourth link 25 are connected by a pin shaft and form a sixth rotation axis 3B. The second link 23 is connected by a pin shaft with the second shaft seat 12 and forms a third rotation axis 1B, and the fourth link 25 is connected by a pin shaft with the hinge outer arm 32 and forms a fourth rotation axis 2B. The fifth rotation axis 3A, the sixth rotation axis 3B and the third rotation axis 1B intersect at a point.

[0076] The embodiment of the present application splits the link assembly 22 into the second link 23, the third link 24 and the fourth link 25 connected in turn, and the fifth rotation axis 3A, the sixth rotation axis 3B and the fourth rotation axis 2B intersect at a point, or the fifth rotation axis 3A, the sixth rotation axis 3B and the third rotation axis 1B intersect at a point. Further, the specific structure of the link assembly 22 can be set according to actual needs, the position interference between the link assembly 22 and the surrounding parts is prevented, the spatial position arrangement is more flexible, and the installation is convenient. The manufacturing and assembly precision requirements are greatly lower, the product qualification rate is greatly improved, and the product can be applied to batch production.

[0077] In some optional embodiments, referring to Figures 1 to 10 As shown in the figure, the embodiment of the present application provides a scissor door hinge 100, which further comprises a driving member for driving the hinge arm 3 to rotate along a set trajectory. The driving member comprises a telescopic support rod 4, which is preferably but not limited to an electric telescopic rod. The bottom of the telescopic support rod 4 is connected with a vehicle body side wall support 5 through a lower support rod mounting pin 51, and the vehicle body side wall support 5 is fixed on the vehicle body side wall 200 through a vehicle body side wall support mounting hole 52. The top of the telescopic support rod 4 is connected with the hinge arm 3 through an upper support rod mounting pin 33.

[0078] Further comprising a limiting assembly, which comprises a limiting support 6 fixedly connected with the vehicle body side wall 200 at the bottom of the hinge arm 3. The limiting support 6 is provided with a buffer block 61 and a limiting support mounting hole 63 for fixing the limiting support 6 on the vehicle body side wall 200. The buffer block 61 is fixed on the limiting support 6 through a bolt 62. A limiting screw 34 abutting against the buffer block 61 is arranged at the bottom of the hinge arm 3. The limiting screw 34 is threadedly connected with the hinge arm 3, and the length of the limiting screw 34 is adjustable to provide limiting when the hinge arm 3 closes the vehicle door 300.

[0079] A plurality of vehicle body side wall assembly holes 13 for fixing the hinge base 1 on the vehicle body side wall 200 are arranged on the hinge base 1, and the hinge base 1 is detachably fixedly connected with the vehicle body side wall 200 through bolts. A plurality of vehicle door assembly holes 35 for fixing the hinge arm 3 on the vehicle door 300 are arranged on the hinge arm 3, and the hinge arm 3 is detachably fixedly connected with the vehicle door 300 through bolts.

[0080] Referring toFigure 14 and Figure 15 As shown in the second aspect of the embodiments of the present application, the vehicle comprises the scissor door hinge 100 of any of the above embodiments, and a vehicle body side wall 200 and a vehicle door 300 connected with the scissor door hinge 100. The scissor door hinge 100 is fixed on the vehicle body side wall 200 to drive the vehicle door 300 to open and close along a curved line.

[0081] Working principle

[0082] The scissor door hinge and the vehicle provided by the embodiments of the present application have the following advantages. The scissor door hinge 100 of the present application comprises the hinge base 1, the first shaft seat 11 and the second shaft seat 12 arranged on the hinge base 1, the hinge arm 3 comprising the hinge outer arm 32 and the hinge inner arm 31 connected with the vehicle door 300, and the space connecting rod 2 comprising the first connecting rod 21 rotatably connected between the first shaft seat 11 and the hinge inner arm 31, and the connecting rod assembly 22 rotatably connected between the second shaft seat 12 and the hinge outer arm 32. The connecting rod assembly 22 comprises the second connecting rod 23, the third connecting rod 24 and the fourth connecting rod 25 connected in sequence. The hinge base 1, the hinge arm 3 and the space connecting rod 2 together form a Bennett mechanism for enabling the hinge arm 3 to move along a set space trajectory.

[0083] Therefore, the scissor door hinge of the present application adopts the Bennett mechanism formed by the hinge base 1, the hinge arm 3 and the space connecting rod 2 for enabling the hinge arm 3 to move along a set space trajectory. The Bennett mechanism has a unique activity freedom, which can simplify the movement of the vehicle door in three directions (XYZ) into the coordinated rotation of four pin shafts when the vehicle door is opened or closed, thereby realizing the function of the hinge arm 3 to open and close the vehicle door along a curved line. The movement process is continuous, smooth, stable and reliable.

[0084] In addition, the scissor door hinge 100 of the embodiments of the present application adopts the space connecting rod to connect the hinge base 1 and the hinge arm 3, and only three components are needed to form a space four-connecting rod mechanism. The structure is simpler, the arrangement is more flexible, and the adjustment is faster and easier. Meanwhile, the connecting rod assembly 22 comprises the second connecting rod 23, the third connecting rod 24 and the fourth connecting rod 25 connected in sequence, which avoids the position interference between the connecting rod assembly 22 and the surrounding parts, and makes the space position arrangement more flexible and convenient to install. The manufacturing and assembly precision requirements are greatly reduced, the product qualification rate is greatly improved, and the product can be applied to batch production.

[0085] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0086] It should be noted that in the present application, relational terms such as "first" and "second", and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent in such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or apparatus including the element.

[0087] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A scissor door hinge characterized in that, The hinge base (1) is provided with a first shaft seat (11) and a second shaft seat (12); the hinge arm (3) comprises a hinge outer arm (32) and a hinge inner arm (31) for connecting a door (300); the space connecting rod (2) comprises a first connecting rod (21) rotatably connected between the first shaft seat (11) and the hinge inner arm (31), and a connecting rod assembly (22) rotatably connected between the second shaft seat (12) and the hinge outer arm (32); the connecting rod assembly (22) comprises a second connecting rod (23), a third connecting rod (24) and a fourth connecting rod (25) connected in sequence; the hinge base (1), the hinge arm (3) and the space connecting rod (2) jointly form a Bennett mechanism for enabling the hinge arm (3) to move along a set space track; one end of the first connecting rod (21) is rotatably connected with the first shaft seat (11) through a first shaft pin and forms a first rotation axis (1A); the other end of the first connecting rod (21) is rotatably connected with the hinge inner arm (31) through a second shaft pin and forms a second rotation axis (2A); one end of the connecting rod assembly (22) is rotatably connected with the second shaft seat (12) through a third shaft pin and forms a third rotation axis (1B); the other end of the connecting rod assembly (22) is rotatably connected with the hinge outer arm (32) through a fourth shaft pin and forms a fourth rotation axis (2B); the length of the line connecting between the first shaft seat (11) and the second shaft seat (12) is equal to the length of the line connecting between the hinge outer arm (32) and the hinge inner arm (31), and the length of the line is a; the length of the line connecting between the two ends of the first connecting rod (21) is equal to the length of the line connecting between the two ends of the connecting rod assembly (22), and the length of the line is b; the space included angle of the first rotation axis (1A) and the third rotation axis (1B) is equal to the space included angle of the second rotation axis (2A) and the fourth rotation axis (2B), and the space included angle is A; the space included angle of the first rotation axis (1A) and the second rotation axis (2A) is equal to the space included angle of the third rotation axis (1B) and the fourth rotation axis (2B), and the space included angle is B; and a / sinA=b / sinB.

2. The scissor door hinge according to claim 1, wherein the line connecting between the first shaft seat (11) and the second shaft seat (12) is perpendicular to the first rotation axis (1A) and the third rotation axis (1B); the line connecting between the hinge outer arm (32) and the hinge inner arm (31) is perpendicular to the second rotation axis (2A) and the fourth rotation axis (2B); the line connecting between the two ends of the first connecting rod (21) is perpendicular to the first rotation axis (1A) and the second rotation axis (2A); and the line connecting between the two ends of the connecting rod assembly (22) is perpendicular to the third rotation axis (1B) and the fourth rotation axis (2B).

3. The scissor door hinge according to claim 1, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The length of the line connecting the first and second shaft seats (11, 12), the length of the line connecting the hinge outer arm (32) and the hinge inner arm (31), the length of the line connecting the two ends of the first connecting rod (21), and the length of the line connecting the two ends of the connecting rod assembly (22) are all equal. The spatial angles between the first and third rotation axes (1A, 1B), the spatial angles between the second and fourth rotation axes (2A, 2B), the spatial angles between the first and second rotation axes (1A, 2A), and the spatial angles between the third and fourth rotation axes (1B, 2B) are all equal.

4. The scissors door hinge of claim 1, characterized in that: The second and third connecting rods (23, 24) are connected by a pin shaft and form a fifth rotation axis (3A), and the third and fourth connecting rods (24, 25) are connected by a pin shaft and form a sixth rotation axis (3B). The second connecting rod (23) is connected by a pin shaft with the second shaft seat (12) and forms a third rotation axis (1B), and the fourth connecting rod (25) is connected by a pin shaft with the hinge outer arm (32) and forms a fourth rotation axis (2B). The fifth, sixth, and fourth rotation axes (3A, 3B, 2B) intersect at a point, or the fifth, sixth, and third rotation axes (3A, 3B, 1B) intersect at a point.

5. The scissors door hinge of claim 1, characterized in that: It further comprises a driving member for driving the hinge arm (3) to rotate along a set trajectory, wherein the driving member comprises a telescopic support rod (4), the bottom of the telescopic support rod (4) is connected with the side wall support (5) of the vehicle body by a lower support rod mounting pin (51), and the top of the telescopic support rod (4) is connected with the hinge arm (3) by an upper support rod mounting pin (33).

6. The scissors door hinge of claim 1, characterized in that: It further comprises a limiting assembly, wherein the limiting assembly comprises a limiting support (6) fixedly connected with the side wall (200) of the vehicle body at the bottom of the hinge arm (3), the limiting support (6) is provided with a buffer block (61) and a limiting support mounting hole (63) for fixing the limiting support (6) on the side wall (200) of the vehicle body; The bottom of the hinge arm (3) is provided with a limiting screw rod (34) abutting against the buffer block (61), the limiting screw rod (34) is threadedly connected with the hinge arm (3) and the length of the limiting screw rod (34) is adjustable.

7. The scissors door hinge of claim 1, characterized in that: The hinge base (1) is provided with a plurality of side wall assembly holes (13) for fixing the hinge base (1) on the side wall (200) of the vehicle body, and the hinge arm (3) is provided with a plurality of door assembly holes (35) for fixing the hinge arm (3) on the vehicle door (300).

8. A vehicle characterized by comprising: The vehicle comprises the scissors door hinge (100) of any one of claims 1 to 7, and a side wall (200) and a vehicle door (300) connected with the scissors door hinge (100).

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