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 second connecting rod rotationally connected between the second shaft seat and the hinge outer arm, and one end of the second connecting rod is provided with a fisheye bearing; 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, so that the movement of the door in three directions (XYZ) can be simplified into the coordinated rotation of four shaft pins when the door is opened or closed, the function that the hinge arm opens the door obliquely upwards along a curve and closes the door obliquely downwards is realized, 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 the mechanism to move unsmoothly, to be stuck, 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 limitation 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] The embodiment of the application provides a scissor door hinge and a vehicle, so as to solve the problems that the hinge structure of the vehicle door in the prior art requires extremely high manufacturing and assembly precision, and the mechanism is prone to have the bad phenomenon such as movement not smooth and jamming, and the product has a high defective rate.

[0008] The first aspect of the embodiment of the 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 vehicle 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 second connecting rod rotationally connected between the second shaft seat and the hinge outer arm, and the second connecting rod is provided with a fisheye bearing at one end;

[0012] 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.

[0013] In some embodiments: one end of the first connecting rod is rotationally connected with the first shaft seat through a first shaft pin and forms a first rotation axis;

[0014] The other end of the first connecting rod is rotationally connected with the hinge inner arm through a second shaft pin and forms a second rotation axis;

[0015] One end of the second connecting rod is rotationally connected with the second shaft seat through a third shaft pin and forms a third rotation axis;

[0016] The other end of the second connecting rod is rotationally connected with the hinge outer arm through a fourth shaft pin and forms a fourth rotation axis.

[0017] 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;

[0018] The line between the hinge outer arm and the hinge inner arm is perpendicular to the second rotation axis and the fourth rotation axis;

[0019] a line connecting two ends of the first connecting rod is perpendicular to the first rotation axis and the second rotation axis;

[0020] a line connecting two ends of the second connecting rod is perpendicular to the third rotation axis and the fourth rotation axis.

[0021] In some embodiments: a line connecting between the first shaft seat and the second shaft seat has a length equal to a line connecting between the hinge outer arm and the hinge inner arm, and the length of the line is a;

[0022] a line connecting two ends of the first connecting rod has a length equal to a line connecting two ends of the second connecting rod, and the length of the line is b;

[0023] a spatial angle between the first rotation axis and the third rotation axis is equal to a spatial angle between the second rotation axis and the fourth rotation axis, and the spatial angle is A;

[0024] a spatial angle between the first rotation axis and the second rotation axis is equal to a spatial angle between the third rotation axis and the fourth rotation axis, and the spatial angle is B;

[0025] and, a / sin A = b / sin B.

[0026] In some embodiments: the line connecting between the first shaft seat and the second shaft seat, the line connecting between the hinge outer arm and the hinge inner arm, the line connecting two ends of the first connecting rod, and the line connecting two ends of the second connecting rod are all equal in length;

[0027] the spatial angle between the first rotation axis and the third rotation axis, the spatial angle between the second rotation axis and the fourth rotation axis, the spatial angle between the first rotation axis and the second rotation axis, and the spatial angle between the third rotation axis and the fourth rotation axis are all equal.

[0028] In some embodiments: one end of the second connecting rod is rotationally connected to the second shaft seat through the fish-eye bearing, and the fish-eye bearing can slide along the shaft pin of the second shaft seat.

[0029] In some embodiments: a driving member for driving the hinge arm to rotate along a set trajectory is further included, the driving member includes a telescopic support rod, a bottom of the telescopic support rod is rotationally connected to a vehicle body side wall support through a lower support rod mounting pin, and a top of the telescopic support rod is rotationally connected to the hinge arm through an upper support rod mounting pin.

[0030] In some embodiments: a limiting component is further included, the limiting component includes a limiting support located at a bottom of the hinge arm and fixedly connected to the vehicle body side wall, the limiting support is provided with a buffer block and a limiting support mounting hole for fixing the limiting support on the vehicle body side wall;

[0031] The hinge arm bottom is provided with a limiting screw abutting against the buffer block, the limiting screw is in threaded connection with the hinge arm, and the length of the limiting screw is adjustable.

[0032] In some embodiments: a plurality of body side wall assembly holes for fixing the hinge base on the body side wall are arranged on the hinge base, and a plurality of door assembly holes for fixing the hinge arm on the door are arranged on the hinge arm.

[0033] The second aspect of the embodiments of the application provides a vehicle, which comprises the scissor door hinge according to any one of the embodiments and a body side wall and a door connected with the scissor door hinge.

[0034] The technical scheme provided by the application has the beneficial effects of:

[0035] The scissor door hinge and the vehicle are provided, the hinge base is arranged on the scissor door hinge, 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 the door and a hinge inner arm, the space connecting rod comprises a first connecting rod rotatably connected between the first shaft seat and the hinge inner arm, and a second connecting rod rotatably connected between the second shaft seat and the hinge outer arm, and the second connecting rod is provided with a fisheye bearing at one end, and 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 track.

[0036] Therefore, the scissor door hinge adopts the Bennett mechanism constituted by the hinge base, the hinge arm and the space connecting rod, the Bennett mechanism has a unique activity freedom, can simplify the movement of the door in XYZ three directions into the coordinated rotation of four shaft pins when the door is opened or closed, realizes the functions of opening the door in a curve and closing the door in an oblique direction, and the movement process is continuous, smooth, stable and reliable.

[0037] In addition, the hinge base and the hinge arm of the scissor door hinge are connected by the space connecting rod, 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 fisheye bearing is arranged at one end of the second connecting rod, the fisheye bearing has a certain space activity freedom, can reduce the installation difficulty, is convenient to install, greatly reduces the requirement for manufacturing and assembly precision, greatly improves the qualified rate of products, and can be applied to batch production. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A structure schematic diagram of a scissors door hinge in a closed state according to an embodiment of the present application;

[0040] Figure 2 A structure schematic diagram of a scissors door hinge in an unfolded state according to an embodiment of the present application;

[0041] Figure 3 A structure schematic diagram of a hinge base according to an embodiment of the present application;

[0042] Figure 4 A structure schematic diagram of a first connecting rod according to an embodiment of the present application;

[0043] Figure 5 A structure schematic diagram of a second connecting rod according to an embodiment of the present application;

[0044] Figure 6 A structure schematic diagram of a hinge arm according to an embodiment of the present application;

[0045] Figure 7 A structure schematic diagram of a vehicle body side wall support according to an embodiment of the present application;

[0046] Figure 8 A structure schematic diagram of a limiting support according to an embodiment of the present application;

[0047] Figure 9 A structure schematic diagram of a scissors door hinge installed on a vehicle body side wall in a closed state according to an embodiment of the present application;

[0048] Figure 10 A structure schematic diagram of a scissors door hinge installed on a vehicle body side wall in an unfolded state according to an embodiment of the present application;

[0049] Figure 11 A structure schematic diagram of a scissors door hinge installed on a vehicle body side wall in an unfolded state according to an embodiment of the present application;

[0050] Figure 12 A structure schematic diagram of a vehicle unfolding a door according to an embodiment of the present application;

[0051] Figure 13 A structure schematic diagram of a vehicle unfolding a door according to an embodiment of the present application.

[0052] Reference signs:

[0053] 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, second connecting rod; 23, fisheye bearing; 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. DETAILED DESCRIPTION

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in 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 some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0055] The embodiments of the present application provide a scissor door hinge and a vehicle, which can solve the problems in the related art that the structure of the door hinge requires extremely high manufacturing and assembly precision, and the mechanism is prone to have adverse phenomena such as unsmooth movement and jamming, and the product has a high defective rate.

[0056] Referring to Figures 1 to 6 The first aspect of the embodiments of the present application provides a scissor door hinge, and the scissor door hinge 100 includes:

[0057] The hinge base 1 is used for mounting the scissor door hinge 100 on the vehicle body side wall 200, and the hinge base 1 includes a mounting plate, the first shaft seat 11 and the second shaft seat 12 are arranged on the mounting plate, the 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.

[0058] The hinge arm 3 is used for mounting the scissor door hinge 100 on the door 300, and the hinge arm 3 includes the hinge outer arm 32 and the hinge inner arm 31 used for connecting the 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 the connecting rib. The shaft pin holes are arranged on the top of the hinge outer arm 32 and the hinge inner arm 31.

[0059] The spatial 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 second connecting rod 22 rotationally connected between the second shaft seat 12 and the hinge outer arm 32. The second connecting rod 22 is provided with a fish-eye bearing 23 rotationally connected to the second shaft seat 12 at one end, and the fish-eye bearing 23 is slidable along the shaft pin of the second shaft seat 12. The first connecting rod 21 and the second connecting rod 22 are both provided with shaft pin holes at two ends, and the two ends of the first connecting rod 21 are rotationally connected to the first shaft seat 11 and the hinge inner arm 31 through the shaft pins, and the two ends of the second connecting rod 22 are rotationally connected to the second shaft seat 12 and the hinge outer arm 32 through the shaft pins.

[0060] The hinge base 1, the hinge arm 3 and the spatial connecting rod 2 jointly form a Bennett mechanism for enabling the hinge arm 3 to move along a set spatial trajectory, and the Bennett mechanism formed by the scissor door hinge 100 has a unique degree of freedom of spatial movement. When the scissor door hinge 100 is unfolded or closed, the movement of the vehicle door 300 in three directions XYZ can be simplified into the coordinated rotation of four shaft pins, thereby realizing the functions of opening the vehicle door in a curved and oblique manner and closing the vehicle door in a curved and oblique manner, and the movement process is continuous, smooth and stable and reliable.

[0061] The scissor door hinge 100 of the embodiment of the present application adopts the hinge base 1, the hinge arm 3 and the spatial connecting rod 2 to jointly form a Bennett mechanism for enabling the hinge arm 3 to move along a set spatial trajectory, and the Bennett mechanism has a unique determined degree of freedom of movement, which can simplify the movement of the vehicle door 300 in three directions XYZ into the coordinated rotation of four shaft pins when the vehicle door 300 is opened or closed, thereby realizing the functions of opening the vehicle door in a curved and oblique manner and closing the vehicle door in a curved and oblique manner, and the movement process is continuous, smooth and stable and reliable.

[0062] In addition, the hinge base 1 and the hinge arm 3 of the scissor door hinge 100 of the embodiment of the present application are connected by the spatial connecting rod 2, and only three components are needed to form a spatial four-connecting rod mechanism, the structure is simpler, the arrangement and design are more flexible, and the adjustment is faster and easier. Meanwhile, the second connecting rod 22 is provided with the fish-eye bearing 23 at one end, the fish-eye bearing 23 has a certain degree of freedom of spatial movement, the installation difficulty can be reduced, the installation is convenient, the requirements for manufacturing and assembly precision are greatly lowered, the product qualification rate is greatly improved, and the scissor door hinge 100 can be applied to batch production.

[0063] In some optional embodiments, referring to Figures 1 to 6 As shown in the figure, the embodiment of the present application provides a scissor door hinge, one end of the first connecting rod 21 of the scissor door hinge 100 is rotationally connected to 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 to the hinge inner arm 31 through a second shaft pin and forms a second rotation axis 2A.

[0064] One end of the second connecting rod 22 is rotatably connected with the second shaft base 12 through a third shaft pin and forms a third rotation axis 1B; the other end of the second connecting rod 22 is rotatably connected with the outer arm 32 of the hinge through a fourth shaft pin and forms a fourth rotation axis 2B.

[0065] The line between the first shaft base 11 and the second shaft base 12 is perpendicular to the first rotation axis 1A and the third rotation axis 1B. The line between the outer arm 32 of the hinge and the inner arm 31 of the hinge is perpendicular to the second rotation axis 2A and the fourth rotation axis 2B. The 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 line between the two ends of the second connecting rod 22 is perpendicular to the third rotation axis 1B and the fourth rotation axis 2B.

[0066] The length of the line between the first shaft base 11 and the second shaft base 12 is equal to the length of the line between the outer arm 32 of the hinge and the inner arm 31 of the hinge, and the length of the line is a. The length of the line between the two ends of the first connecting rod 21 is equal to the length of the line between the two ends of the second connecting rod 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.

[0067] 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; and, 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.

[0068] In some optional embodiments: referring to Figures 1 to 6 As shown in the figure, the embodiments of the present application provide a scissor door hinge, the length of the line between the first shaft base 11 and the second shaft base 12 of the scissor door hinge 100, the length of the line between the outer arm 32 of the hinge and the inner arm 31 of the hinge, the length of the line between the two ends of the first connecting rod 21, and the length of the line between the two ends of the second connecting rod 22 are all 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.

[0069] In some optional embodiments: referring to Figures 1 to 11As shown, the embodiment of the present application provides a scissor door hinge, which further comprises a driving member for driving the hinge arm 3 to rotate along a set trajectory, and 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 rotatably 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 rotatably connected with the hinge arm 3 through an upper support rod mounting pin 33.

[0070] Further comprising a limiting assembly, which comprises a limiting support 6 located at the bottom of the hinge arm 3 and fixedly connected with the vehicle body side wall 200, and 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, and the buffer block 61 is fixed on the limiting support 6 through a bolt 62. A limiting screw 34 is arranged at the bottom of the hinge arm 3 and abuts against the buffer block 61, and 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 door 300.

[0071] A plurality of vehicle body side wall assembly holes 13 are arranged on the hinge base 1 for fixing the hinge base 1 on the vehicle body side wall 200, and the hinge base 1 is detachably fixedly connected with the vehicle body side wall 200 through bolts. A plurality of door assembly holes 35 are arranged on the hinge arm 3 for fixing the hinge arm 3 on the door 300, and the hinge arm 3 is detachably fixedly connected with the door 300 through bolts.

[0072] Referring to Figure 12 and Figure 13 As shown, the second aspect of the embodiment of the present application provides a vehicle, which comprises the scissor door hinge 100 according to any one of the above-mentioned embodiments, and a vehicle body side wall 200 and a 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 door 300 to open obliquely upward along a curve and to close obliquely downward.

[0073] Working principle

[0074] The embodiment of the present application provides a scissor door hinge and a vehicle, since the scissor door hinge 100 is provided with a hinge base 1, the hinge base 1 is provided with a first shaft seat 11 and a second shaft seat 12; a hinge arm 3, the hinge arm 3 includes a hinge outer arm 32 used for connecting a door 300 and a hinge inner arm 31; a space connecting rod 2, the space connecting rod 2 includes a first connecting rod 21 rotatably connected between the first shaft seat 11 and the hinge inner arm 31, and a second connecting rod 22 rotatably connected between the second shaft seat 12 and the hinge outer arm 32, one end of the second connecting rod 22 is provided with a fish eye bearing 23 rotatably connected with the second shaft seat 12, and the fish eye bearing 23 can slide along the shaft pin of the second shaft seat 12; 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 track.

[0075] Therefore, the scissor door hinge adopts the Bennett mechanism jointly constituted 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 track, the Bennett mechanism has a unique determined activity freedom, so that the movement of the door in three directions XYZ can be simplified into the coordinated rotation of four shaft pins when the door is opened or closed, and the function of opening the door in a curve and obliquely upward and closing the door in a curve and obliquely downward is realized, and the movement process is continuous, smooth, stable and reliable.

[0076] In addition, the scissor door hinge 100 adopts the space connecting rod to connect the hinge base 1 and the hinge arm 3, 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 second connecting rod 22 is provided with the fish eye bearing 23 at one end, the fish eye bearing 23 has a certain space activity freedom, the installation difficulty can be reduced, the installation is convenient, the manufacturing and assembly precision requirements are greatly lower, the product qualification rate is greatly improved, and the scissor door hinge can be applied to batch production.

[0077] In the description of the present application, it should be noted that the positions or position relationships indicated by the terms "upper", "lower" and the like are based on the positions or position relationships 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 position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication between 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.

[0078] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0079] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed 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) for connecting a vehicle door (300) and a hinge inner arm (31); 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 second connecting rod (22) rotatably connected between the second shaft seat (12) and the hinge outer arm (32), one end of the second connecting rod (22) being provided with a fisheye bearing (23); 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; 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 second connecting rod (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 second connecting rod (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 second connecting rod (22), and the length of the line is b; the space included angle between the first rotation axis (1A) and the third rotation axis (1B) is equal to the space included angle between the second rotation axis (2A) and the fourth rotation axis (2B), and the space included angle is A; the space included angle between the first rotation axis (1A) and the second rotation axis (2A) is equal to the space included angle between 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 second connecting rod (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 between the first and second shaft seats (11, 12), the length of the line between the outer and inner hinge arms (32, 31), the length of the line between the two ends of the first connecting rod (21), and the length of the line between the two ends of the second connecting rod (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: One end of the second connecting rod (22) is rotatably connected to the second shaft seat (12) through the fish-eye bearing (23), and the fish-eye bearing (23) can slide along the shaft pin of the second shaft seat (12).

5. The scissors door hinge of claim 1, characterized in that: The drive member further comprises a telescopic support rod (4), the bottom of the telescopic support rod (4) is rotatably connected to the vehicle body side wall support (5) through a lower support rod mounting pin (51), and the top of the telescopic support rod (4) is rotatably connected to the hinge arm (3) through an upper support rod mounting pin (33).

6. The scissors door hinge of claim 1, characterized in that: The limiting assembly further comprises a limiting support (6) located at the bottom of the hinge arm (3) and fixedly connected to the vehicle body side wall (200), the limiting support (6) is provided with a buffer block (61) and a limiting support mounting hole (63) for fixing the limiting support (6) to the vehicle body side wall (200); 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 to 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 vehicle body side wall assembly holes (13) for fixing the hinge base (1) to the vehicle body side wall (200), and the hinge arm (3) is provided with a plurality of vehicle door assembly holes (35) for fixing the hinge arm (3) to 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 vehicle body side wall (200) and a vehicle door (300) connected to the scissors door hinge (100).

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