Scissor door hinge and vehicle

Abstract

The application discloses a scissor door hinge and an automobile, and relates to the technical field of vehicle body structure. The scissor door hinge comprises a fixed assembly, a movable assembly, a connecting assembly and a driving assembly. The fixed assembly is fixedly connected with a vehicle body side wall, and the movable assembly is fixedly connected with a vehicle door. The movable assembly is connected with the fixed assembly through the connecting assembly, and the connecting assembly enables the fixed assembly to have the freedom of rotating outward and upward relative to the fixed assembly. The driving assembly comprises a main driving element with telescopic length and an auxiliary driving element with telescopic length. The front end of the main driving element is connected with the vehicle body side wall, and the rear end of the main driving element is connected with the movable assembly. The application can provide kinetic energy for the vehicle door, so that the potential energy in the process of opening the vehicle door upward and outward is overcome, the manufacturing difficulty is greatly reduced, and the problem of opening and closing failure of the scissor door system caused by the hinge being stuck is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle body structure, in particular to a scissor door hinge and a vehicle. BACKGROUND

[0002] With the development of technology, customers have higher requirements for the modeling of the vehicle body, especially for the opening and closing modeling of the vehicle door. The traditional horizontally outward opening vehicle door opening and closing modeling cannot meet the customers' demand for technological sense. In view of this demand, the prior art provides a scissor door opening and closing modeling that opens upward and outward. The most important component for realizing the opening and closing modeling of the vehicle door is the vehicle door hinge. The existing scissor door hinge structure is complex, has high installation precision requirements, high assembly difficulty, and low generation efficiency.

[0003] CN111749566A discloses a vehicle door hinge and a vehicle, the vehicle door hinge comprising: a hinge mounting seat comprising a mounting seat first shaft seat and a mounting seat second shaft seat; a hinge arm comprising a hinge arm working part and a hinge arm connecting part, the hinge arm working part comprising a hinge arm height shaft block mounting part and a hinge arm opening shaft block mounting part; a pin shaft structure assembly comprising a hinge height shaft block and a hinge opening shaft block. The vehicle door hinge can simplify the movement of the vehicle door when opening or closing to the movement of the pin shaft structure assembly, making the door opening more smooth. It is needless to say that the technical solution disclosed in the above patent document is a beneficial attempt in the technical field, but the technical solution needs to make the first rotation axis, the second rotation axis, the third rotation axis and the fourth rotation axis intersect at a point, which is too difficult to manufacture and implement. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a scissor door hinge and a vehicle, which can provide kinetic energy for the vehicle door, thereby overcoming the potential energy in the process of opening the vehicle door upward and outward, and can greatly reduce the manufacturing difficulty and avoid the problem of opening and closing failure of the scissor door system caused by the hinge being stuck.

[0005] The scissor door hinge comprises a fixed component, a movable component, a connecting component and a driving component; the fixed component is fixedly connected with a side wall of a vehicle body, and the movable component is fixedly connected with a door; the movable component is connected with the fixed component through the connecting component, and the connecting component enables the fixed component to have the freedom of outward rotation and upward rotation relative to the fixed component; the driving component comprises a main driving element and an auxiliary driving element; the front end of the main driving element is connected with the side wall of the vehicle body through a first spherical hinge, and the rear end of the main driving element is connected with the movable component through a second spherical hinge; the upper end of the auxiliary driving element is connected with the movable component through a third spherical hinge, and the lower end of the auxiliary driving element is connected with the fixed component through a fourth spherical hinge.

[0006] Further, the connecting component comprises a T-shaped component, a folded component and three hinge shafts; the T-shaped component is connected with the movable component through a fifth spherical hinge, the T-shaped component is connected with the fixed component through a hinge shaft and forms a first rotation axis, the folded component is connected with the fixed component through a hinge shaft and forms a second rotation axis, and the folded component is connected with the movable component through a hinge shaft and forms a third rotation axis; the first rotation axis, the second rotation axis and the third rotation axis intersect at a point.

[0007] Further, the movable component comprises a front upper branch, a rear upper branch and a lower trunk; the lower part of the front upper branch and the lower part of the rear upper branch are connected with the upper part of the lower trunk, and the three parts form a "Y"-shaped support; the upper part of the rear upper branch and the lower part of the lower trunk are provided with connecting structures for connecting with the door.

[0008] Further, the fixed component comprises an upper fixed seat, and the upper fixed seat is provided with a first shaft seat; the T-shaped component comprises a first sleeve and a fifth spherical head seat arranged outside the first sleeve, and the first sleeve is connected with the first shaft seat through a hinge shaft and forms the first rotation axis; the upper part of the front upper branch is provided with a fifth spherical hinge seat, and the fifth spherical head seat and the fifth spherical hinge seat form the fifth spherical hinge.

[0009] Further, the folded component comprises a second sleeve, a third sleeve and a connecting rod, and the two ends of the connecting rod are connected with the second sleeve and the third sleeve respectively; the upper fixed seat is further provided with a second shaft seat, and the second sleeve is connected with the second shaft seat through a hinge shaft and forms the second rotation axis; the middle part of the front upper branch is provided with a third shaft seat, and the third sleeve is connected with the third shaft seat through a hinge shaft and forms the third rotation axis.

[0010] Further, a second ball head seat is arranged at the middle part of the front upper branch, and the second ball head seat is located at the lower side of the third shaft seat; a second ball hinge seat is arranged at the rear end of the main driving element, and the second ball head seat and the second ball hinge seat form the second ball hinge pair.

[0011] Further, the fixing assembly further comprises a lower fixing seat arranged below the upper fixing seat, a fourth ball head seat is arranged on the lower fixing seat, a fourth ball hinge seat is arranged at the lower end of the auxiliary driving element, and the fourth ball head seat and the fourth ball hinge seat form the fourth ball hinge pair; a third ball head seat is arranged at the upper part of the lower main stem, a third ball hinge seat is arranged at the upper end of the auxiliary driving element, and the third ball head seat and the third ball hinge seat form the third ball hinge pair.

[0012] Further, an active end limiting block is arranged at the middle part of the rear upper branch, and an active end limiting boss protruding forward is arranged at the middle part of the lower main stem; a fixed end upper limiting block for limiting the inward movement of the active end limiting block and a fixed end lower limiting block for limiting the forward movement of the active end limiting boss are arranged on the fixing assembly.

[0013] The automobile in the application comprises a vehicle body side wall, a door and the above-described scissor door hinge, a first ball head seat is arranged on the vehicle body side wall, a first ball hinge seat is arranged at the front end of the main driving element, and the first ball head seat and the first ball hinge seat form the first ball hinge pair; the fixing assembly is fixedly connected with the vehicle body side wall, and the active component is fixedly connected with the door.

[0014] Further, a fender is arranged outside the vehicle body side wall, and a cavity for accommodating the driving assembly and the fixing assembly is formed between the fender and the vehicle body side wall.

[0015] The automobile in the application comprises a vehicle body side wall, a door and the above-described scissor door hinge, a first ball head seat is arranged on the vehicle body side wall, a first ball hinge seat is arranged at the front end of the main driving element, and the first ball head seat and the first ball hinge seat form the first ball hinge pair; the fixing assembly is fixedly connected with the vehicle body side wall, and the active component is fixedly connected with the door.

[0016] (1) The application can provide kinetic energy for the door, so as to overcome the potential energy in the process of opening the door upward and outward, and can ensure that the design value of the driving force of the main driving motor can be within a reasonable range that can be realized in engineering; meanwhile, the main driving element is horizontally arranged, and the auxiliary driving element is vertically arranged, which is more matched with the general shape of the fender and has wider modeling adaptability.

[0017] (2) The application can greatly reduce the manufacturing difficulty, avoid the problem that the scissor door system fails to open and close due to the hinge being stuck, and because the high pair ball hinge pair has no shaft center line in the spherical movement, the position of the high pair ball hinge pair is more flexible, which can be flexibly arranged according to the space requirement, so that the application has wider fender modeling adaptability and can realize more compact structure design.

[0018] (3) the front upper branch, the rear upper branch and the lower main stem of the present application form a "Y" shaped support which can reduce the weight of the movable component under the premise of connecting each component; the movable end limiting block, the movable end limiting boss, the upper fixed end limiting block and the lower fixed end limiting block of the present application can ensure the accurate position of the closed door. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the purpose, technical scheme and beneficial effects of the present application more clear, the present application provides the following drawings for illustration:

[0020] Figure 1 it is the explosion schematic view of the scissor door hinge, the car body side wall, the door and the fender of the present application;

[0021] Figure 2 it is the structure schematic view of the scissor door hinge, the car body side wall and the door connection (door closing state) of the present application;

[0022] Figure 3 it is the structure schematic view of the scissor door hinge, the car body side wall and the door connection (door opening state) of the present application;

[0023] Figure 4 it is the working principle schematic view of the driving assembly of the present application;

[0024] Figure 5 it is the structure schematic view of the scissor door hinge and the car body side wall connection (door opening state) of the present application;

[0025] Figure 6 it is the structure schematic view of the scissor door hinge of the present application;

[0026] Figure 7 it is the structure schematic view of the scissor door hinge of the present application (hidden driving assembly);

[0027] Figure 8 it is the explosion schematic view of the scissor door hinge of the present application (hidden driving assembly);

[0028] Figure 9 it is the structure schematic view of the upper fixed seat of the present application;

[0029] Figure 10 it is the structure schematic view of the lower fixed seat of the present application;

[0030] Figure 11 it is the structure schematic view of the movable component of the present application;

[0031] Figure 12 it is the structure schematic view of the T-shaped component of the present application;

[0032] Figure 13 it is the structure schematic view of the fold-shaped component of the present application;

[0033] Figure 14 Fig. 4 is a partial enlarged structural diagram of the connection between the upper fixed seat and the movable member of the present application;

[0034] Figure 15 Fig. 5 is a K-K sectional schematic diagram of the present application; Figure 14

[0035] Figure 16 Fig. 6 is a driving force matching curve diagram of the scissor door hinge of the present application.

[0036] In the drawings, the following signs are marked: 1 - scissor door hinge, 11 - fixed assembly, 111 - upper fixed seat, 1111 - first shaft seat, 1112 - second shaft seat, 1113 - upper limit block of fixed end, 112 - lower fixed seat, 1121 - fourth ball head seat, 1122 - lower limit block of fixed end, 12 - movable member, 121 - front upper branch, 122 - rear upper branch, 123 - lower main stem, 124 - third shaft seat, 125 - second ball head seat, 126 - third ball head seat, 127 - fifth ball hinge seat, 1271 - ball pair dust cover, 1272 - ball pair small clamp, 1273 - ball pair large clamp, 1274 - ball pair bottom cover, 1275 - ball bowl seat, 128 - movable end limit block, 129 - movable end limit boss, 13 - connecting assembly, 131 - T-shaped member, 1311 - first sleeve, 1312 - fifth ball head seat, 132 - folded member, 1321 - second sleeve, 1322 - third sleeve, 1323 - connecting rod, 133 - hinged shaft, 14 - driving assembly, 141 - main driving element, 1411 - first ball hinge seat, 1412 - second ball hinge seat, 142 - auxiliary driving element, 1421 - fourth ball hinge seat, 1422 - third ball hinge seat, A - first rotation axis, B - second rotation axis, C - third rotation axis, D - fifth ball hinge pair;

[0037] 2 - vehicle body side wall, 21 - first ball head seat, 3 - vehicle door, 4 - fender. DETAILED DESCRIPTION

[0038] The technical solutions of the present application will be described in detail below in combination with the drawings and examples.

[0039] As Figures 1-8 ​As shown, the scissors door hinge 1 in the embodiment includes a fixed component 11, a movable component 12, a connecting component 13 and a driving component 14; the fixed component 11 can be fixedly connected with a body side wall 2, the movable component 12 can be fixedly connected with a door 3; the movable component 12 is connected with the fixed component 11 through the connecting component 13, the connecting component 13 enables the fixed component 11 to have the freedom of rotating outward and upward relative to the fixed component 11; the driving component 14 includes a main driving element 141 with a telescopic length and an auxiliary driving element 142 with a telescopic length; the front end of the main driving element 141 can be connected with the body side wall 2 through a first spherical hinge pair, the rear end of the main driving element 141 is connected with the movable component 12 through a second spherical hinge pair; the upper end of the auxiliary driving element 142 is connected with the movable component 12 through a third spherical hinge pair, and the lower end of the auxiliary driving element 142 is connected with the fixed component 11 through a fourth spherical hinge pair.

[0040] As shown in Figure 4 , the main driving element 141 provides a main driving mechanical driving force F1 and a main driving motor driving force F3 for opening the door 3, and the auxiliary driving element 142 provides an auxiliary driving force F2 for opening the door 3. As shown in Figure 16 , F1, F2 and F3 jointly provide kinetic energy K for the door 3 to overcome potential energy in the process of opening the door 3 upward and outward. Since the space between the body side wall 2 and a fender 4 is limited, the main driving element 141 cannot use a motor with a very large size and a large output force, so the main driving element 141 and the auxiliary driving element 142 are essential components, and the auxiliary driving element 142 bears about half of the force value of the entire system, which can ensure that the design value of the main driving motor driving force F3 can be within a reasonable range that can be achieved in engineering. The main driving element 141 is designed to be arranged horizontally, and the auxiliary driving element 142 is designed to be arranged vertically, which is more matched with the general shape of the fender 4 and has a wider modeling adaptability.

[0041] In the embodiment, as shown in Figure 7 , Figure 8 and Figure 14 , the connecting component 13 includes a T-shaped component 131, a folded component 132 and three hinge shafts 133; the T-shaped component 131 is connected with the movable component 12 through a fifth spherical hinge pair D, the T-shaped component 131 is connected with the fixed component 11 through a hinge shaft 133 and forms a first rotation axis A, the folded component 132 is connected with the fixed component 11 through a hinge shaft 133 and forms a second rotation axis B, and the folded component 132 is connected with the movable component 12 through a hinge shaft 133 and forms a third rotation axis C; the first rotation axis A, the second rotation axis B and the third rotation axis C intersect at a point.

[0042] The T-shaped member 131 and the fixed assembly 11 form a low pair rotation pair at the first rotation axis A, the folded member 132 and the fixed assembly 11 form a low pair rotation pair at the second rotation axis B, the folded member 132 and the movable assembly 12 form a low pair rotation pair at the third rotation axis C, and the T-shaped member 131 and the movable assembly 12 are connected by a high pair spherical hinge pair. The rotation axes of the three low pair rotation pairs intersect at a point, so that the three low pair rotation pairs have a common point constraint. This structure can realize the spatial cone movement of the hinge, and the high pair spherical hinge pair serves as auxiliary support. If the rotation axes of the four rotation pairs do not intersect at a point due to actual manufacturing errors in the traditional scheme, the hinge will be over-constrained during movement, resulting in hinge jamming and failure of the entire scissor door system to open and close. The system in the embodiment introduces a high pair spherical hinge pair, which greatly reduces the manufacturing difficulty required for the rotation axes of the four rotation pairs in the traditional scheme to intersect at a point, thereby avoiding the problem of failure of the scissor door system to open and close due to hinge jamming. Since the high pair spherical hinge pair is a spherical movement without an axis, the position of the high pair spherical hinge pair is more flexible and can be arranged flexibly according to space requirements. This can achieve a more compact structure design and has a wider ability to adapt to the styling of the fender 4.

[0043] In the embodiment, as shown in Figure 2 , Figure 7 and Figure 11 , the movable assembly 12 includes a front upper branch 121, a rear upper branch 122, and a lower trunk 123. The lower part of the front upper branch 121 and the lower part of the rear upper branch 122 are connected to the upper part of the lower trunk 123, and the three form a "Y" shaped bracket. The upper part of the rear upper branch 122 and the lower part of the lower trunk 123 are provided with connecting structures for connecting with the door 3. The connecting structures can be holes, and the connecting structures and the door 3 are connected by bolts. The "Y" shaped bracket formed by the front upper branch 121, the rear upper branch 122, and the lower trunk 123 can reduce the weight of the movable assembly 12 while meeting the connection requirements of the components.

[0044] In the embodiment, as shown in Figures 7-14 , the fixed assembly 11 includes an upper fixed seat 111, and the upper fixed seat 111 is provided with a first shaft seat 1111. The T-shaped member 131 includes a first sleeve 1311 and a fifth ball head seat 1312 arranged outside the first sleeve 1311. The first sleeve 1311 is connected to the first shaft seat 1111 by a hinge shaft 133 and forms the first rotation axis A. The upper part of the front upper branch 121 is provided with a fifth spherical hinge seat 127, and the fifth ball head seat 1312 and the fifth spherical hinge seat 127 form the fifth spherical hinge pair D. As shown in Figure 15As shown, the fifth ball hinge seat 127 includes a ball pair dust cover 1271, a ball pair small clamp 1272, a ball pair large clamp 1273, a ball pair bottom cover 1274, and a ball bowl seat 1275. The ball pair bottom cover 1274 is located in the ball bowl seat 1275 and plays a supporting role. The ball head of the fifth ball head seat 1312 is inserted into the ball bowl seat 1275. The ball bowl seat 1275 is made of wear-resistant self-lubricating resin material, so that the ball head of the fifth ball head seat 1312 can move smoothly and have an interference fit without gap. One end of the ball pair dust cover 1271 is sleeved on the fifth ball head seat 1312 and is fixed through the ball pair small clamp 1272. The other end of the ball pair dust cover 1271 is sleeved on the ball bowl seat 1275 and is fixed through the ball pair large clamp 1273, which plays a sealing role and prevents dust, water and other foreign matters from entering the fifth ball hinge D to produce abnormal noise and wear.

[0045] In this embodiment, as shown in the figure, Figures 7-14 The folding member 132 includes a second sleeve 1321, a third sleeve 1322, and a connecting rod 1323. The two ends of the connecting rod 1323 are connected with the second sleeve 1321 and the third sleeve 1322, respectively. The upper fixed seat 111 is further provided with a second shaft seat 1112. The second sleeve 1321 is connected with the second shaft seat 1112 through a hinge shaft 133 and forms the second rotation axis B. The middle part of the front upper branch 121 is provided with a third shaft seat 124. The third sleeve 1322 is connected with the third shaft seat 124 through a hinge shaft 133 and forms the third rotation axis C. The connecting rod 1323 is located between the second sleeve 1321 and the third sleeve 1322. The connecting rod 1323 makes the inner hole axes of the second sleeve 1321 and the third sleeve 1322 form an included angle. The inner hole axis of the second sleeve 1321 is collinear with the second rotation axis B. The inner hole axis of the third sleeve 1322 is collinear with the third rotation axis C, so as to ensure that the second rotation axis B and the third rotation axis C can intersect at a point.

[0046] In this embodiment, as shown in the figure, Figures 4-7As shown, the middle part of the front upper branch 121 is provided with a second ball head seat 125, and the second ball head seat 125 is located on the lower side of the third shaft seat 124; the rear end of the main driving element 141 is provided with a second ball hinge seat 1412, and the second ball head seat 125 and the second ball hinge seat 1412 constitute the second ball hinge pair. In this embodiment, the fixed assembly 11 further comprises a lower fixed seat 112, which is arranged below the upper fixed seat 111, and the lower fixed seat 112 is provided with a fourth ball head seat 1121; the lower end of the auxiliary driving element 142 is provided with a fourth ball hinge seat 1421, and the fourth ball head seat 1121 and the fourth ball hinge seat 1421 constitute the fourth ball hinge pair; the upper part of the lower main stem 123 is provided with a third ball head seat 126, and the upper end of the auxiliary driving element 142 is provided with a third ball hinge seat 1422, and the third ball head seat 126 and the third ball hinge seat 1422 constitute the third ball hinge pair. The position of the second ball head seat 125 is the position of the acting force of the main driving element 141, and the position of the third ball head seat 126 is the position of the acting force of the auxiliary driving element 142. The selection of these two positions is conducive to ensuring that the design value of the main driving motor driving force F3 can be within a reasonable range of engineering realization.

[0047] In this embodiment, as shown in Figure 7 and Figure 11 As shown, the middle part of the rear upper branch 122 is provided with a movable end limiting block 128, and the middle part of the lower main stem 123 is provided with a movable end limiting boss 129 protruding forward; the fixed assembly 11 is provided with a fixed end upper limiting block 1113 for limiting the inward movement of the movable end limiting block 128 and a fixed end lower limiting block 1122 for limiting the forward movement of the movable end limiting boss 129. When the door 3 is closed, the inner side of the movable end limiting block 128 abuts against the fixed end upper limiting block 1113 of the upper fixed seat 111, and the front side of the movable end limiting boss 129 abuts against the fixed end lower limiting block 1122 of the lower fixed seat 112; when the door 3 is opened, the movable end limiting block 128 moves away from the fixed end upper limiting block 1113, and the movable end limiting boss 129 moves away from the fixed end lower limiting block 1122. The movable end limiting block 128, the movable end limiting boss 129, the fixed end upper limiting block 1113 and the fixed end lower limiting block 1122 can ensure the accurate position of the closed door 3.

[0048] In this embodiment, an automobile, as shown in Figures 1-5 comprises a vehicle body side wall 2, a door 3 and the above-mentioned scissor door hinge 1, the vehicle body side wall 2 is provided with a first ball head seat 21, the front end of the main driving element 141 is provided with a first ball hinge seat 1411, and the first ball head seat 21 and the first ball hinge seat 1411 constitute the first ball hinge pair; the fixed assembly 11 is fixedly connected with the vehicle body side wall 2, and the movable member 12 is fixedly connected with the door 3.

[0049] In this embodiment, as shown in Figure 1 The fender 4 is arranged outside the body side wall 2, and a cavity for accommodating the driving assembly 14 and the fixing assembly 11 is formed between the fender 4 and the body side wall 2.

[0050] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A scissor door hinge, comprising a fixed component (11), a movable component (12), a connecting component (13), and a driving component (14); wherein the fixed component (11) is fixedly connected to a vehicle side panel (2), and the movable component (12) is fixedly connected to a vehicle door (3); characterized in that: The movable component (12) is connected to the fixed component (11) via the connecting component (13), the connecting component (13) giving the fixed component (11) the freedom to rotate outward and upward relative to the fixed component (11); the drive component (14) includes a main drive element (141) with a retractable length and an auxiliary drive element (142) with a retractable length; the front end of the main drive element (141) can be connected to the vehicle side panel (2) via a first ball joint, and the rear end of the main drive element (141) is connected to the movable component (12) via a second ball joint; the upper end of the auxiliary drive element (142) is connected to the movable component (12) via a third ball joint, and the lower end of the auxiliary drive element (142) is connected to the fixed component (11) via a fourth ball joint; The connecting assembly (13) includes a T-shaped member (131), a folded member (132), and three hinge shafts (133); the T-shaped member (131) is connected to the movable member (12) through a fifth ball joint; the T-shaped member (131) is connected to the fixed assembly (11) through a hinge shaft and forms a first rotation axis; the folded member (132) is connected to the fixed assembly (11) through a hinge shaft and forms a second rotation axis; the folded member (132) is connected to the movable member (12) through a hinge shaft and forms a third rotation axis; the first rotation axis, the second rotation axis, and the third rotation axis intersect at a point.

2. The scissor door hinge according to claim 1, characterized in that: The movable component (12) includes a front upper branch (121), a rear upper branch (122), and a lower main branch (123). The lower part of the front upper branch (121) and the lower part of the rear upper branch (122) are connected to the upper part of the lower main branch (123), and the three form a "Y" shaped bracket. The upper part of the rear upper branch (122) and the lower part of the lower main branch (123) are provided with a connection structure for connecting to the door (3).

3. The scissor door hinge according to claim 2, characterized in that: The fixing component (11) includes an upper fixing seat (111), on which a first bearing seat (1111) is provided; the T-shaped component (131) includes a first sleeve (1311) and a fifth ball joint seat (1312) disposed outside the first sleeve (1311), the first sleeve (1311) being connected to the first bearing seat (1111) via a hinge shaft (133) and forming the first rotation axis; the upper part of the front upper branch (121) is provided with a fifth ball joint seat (127), and the fifth ball joint seat (1312) and the fifth ball joint seat (127) form the fifth ball joint pair.

4. The scissor door hinge according to claim 3, characterized in that: The folded component (132) includes a second sleeve (1321), a third sleeve (1322), and a connecting rod (1323). The two ends of the connecting rod (1323) are respectively connected to the second sleeve (1321) and the third sleeve (1322). A second bearing seat (1112) is also provided on the upper fixed seat (111). The second sleeve (1321) is connected to the second bearing seat (1112) through a hinge shaft (133) to form the second rotation axis. A third bearing seat (124) is provided in the middle of the front upper branch (121). The third sleeve (1322) is connected to the third bearing seat (124) through a hinge shaft (133) to form the third rotation axis.

5. The scissor door hinge according to claim 4, characterized in that: The front upper branch (121) is provided with a second ball joint (125) in the middle, and the second ball joint (125) is located on the lower side of the third shaft seat (124); the rear end of the main drive element (141) is provided with a second ball joint seat (1412), and the second ball joint seat (125) and the second ball joint seat (1412) form the second ball joint pair.

6. The scissor door hinge according to claim 3, characterized in that: The fixing assembly (11) further includes a lower fixing seat (112), which is located below the upper fixing seat (111). A fourth ball joint seat (1121) is provided on the lower fixing seat (112), and a fourth ball joint seat (1421) is provided at the lower end of the auxiliary driving element (142). The fourth ball joint seat (1121) and the fourth ball joint seat (1421) form the fourth ball joint pair. A third ball joint seat (126) is provided at the upper part of the lower main body (123), and a third ball joint seat (1422) is provided at the upper end of the auxiliary driving element (142). The third ball joint seat (126) and the third ball joint seat (1422) form the third ball joint pair.

7. The scissor door hinge according to claim 6, characterized in that: The upper rear branch (122) is provided with a movable end limiting block (128) in the middle, and the lower main branch (123) is provided with a forward-protruding movable end limiting boss (129) in the middle; the fixing component (11) is provided with a fixed end upper limit block (1113) for limiting the movable end limiting block (128) to move inward and a fixed end lower limit block (1122) for limiting the movable end limiting boss (129) to move forward.

8. A car, characterized in that: The vehicle includes a side panel (2), a door (3), and a scissor door hinge as described in any one of claims 1-7. A first ball joint (21) is provided on the side panel (2), and a first ball joint seat (1411) is provided at the front end of the main drive element (141). The first ball joint seat (21) and the first ball joint seat (1411) form the first ball joint pair. The fixed component (11) is fixedly connected to the side panel (2), and the movable component (12) is fixedly connected to the door (3).

9. The automobile according to claim 8, characterized in that: It also includes a fender (4), which is disposed outside the vehicle body side panel (2), and a cavity is formed between the fender (4) and the vehicle body side panel (2) for accommodating the drive assembly (14) and the fixing assembly (11).

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