Vehicle door hinge mechanism and vehicle

Abstract

The utility model discloses a vehicle door hinge mechanism and a vehicle, the vehicle door hinge mechanism is used for connecting a vehicle body and a vehicle door of the vehicle, and comprises a vehicle door seat, a vehicle body seat, a connecting arm and a pin shaft; the vehicle door seat is fixedly arranged on the vehicle door; the vehicle body seat is fixedly arranged on the vehicle body; the connecting arm is provided with a first end and a second end, the first end is rotatably connected with the vehicle door seat, and the second end is rotatably connected with the vehicle body seat; the pin shaft is movably installed on the vehicle body seat and is provided with a locking position and an unlocking position, the vehicle body seat and the second end are relatively fixed at the locking position, and the vehicle body seat and the second end can relatively rotate at the unlocking position. According to the technical scheme, the opening angle of the vehicle door can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a door hinge mechanism and a vehicle. Background Art

[0002] The door hinge mechanism, as the connecting part between the vehicle door and the vehicle body, plays a key role in the door opening and closing movement, thus affecting people's comfort in using the vehicle.

[0003] At present, car door hinges mainly use a single-axis hinge mechanism to achieve single-axis linear movement of the car door, so that the maximum opening angle of the car door is basically around 70°, resulting in a limited full opening angle of the car door, which easily affects after-sales maintenance and passengers getting on and off the car. In addition, the car door has a single opening method and cannot achieve diversified opening of the door. Utility Model Content

[0004] The main purpose of the utility model is to provide a vehicle door hinge mechanism, aiming at increasing the opening angle of the vehicle door.

[0005] To achieve the above-mentioned purpose, the vehicle door hinge mechanism proposed in the present invention is used to connect the vehicle body and the vehicle door, and the vehicle door hinge mechanism includes:

[0006] A door seat, fixedly mounted on the door;

[0007] A vehicle body seat, fixedly mounted on the vehicle body;

[0008] a connecting arm having a first end and a second end, wherein the first end is rotatably connected to the door seat and the second end is rotatably connected to the vehicle body seat; and

[0009] The pin shaft is movably mounted on the vehicle body seat and has a locking position and an unlocking position. In the locking position, the vehicle body seat and the second end are relatively fixed, and in the unlocking position, the vehicle body seat and the second end can rotate relatively.

[0010] Optionally, a latch hole is provided on the connecting arm, and in the locked position, the pin shaft is inserted into the latch hole, and in the unlocked position, the pin shaft is disengaged from the latch hole.

[0011] Optionally, the vehicle body seat comprises a main body and a limit stopper, the main body is rotatably connected to the second end, the limit stopper is connected to the main body and is provided with a through hole for the pin to pass through;

[0012] In the locked position, the through hole is aligned with the latch hole, and in the unlocked position, the through hole is staggered with the latch hole.

[0013] Optionally, a support is fixed on the limit stop portion, and the support is movably connected to the pin shaft.

[0014] Optionally, a return spring is connected between the support and the pin shaft;

[0015] And / or, the pin shaft includes an operating part and a locking part, one end of the operating part is connected to the locking part, and the other end passes through the support, and the locking part is used to be inserted into the pin hole.

[0016] Optionally, the connecting arm is provided with a guide surface, and when the pin shaft is switched from the unlocking position to the locking position, the guide surface is used to guide the pin shaft to insert into the pin hole.

[0017] Optionally, the connecting arm is provided with a first limiting convex bump, and the first limiting convex bump is used to restrict the opening of the vehicle body seat relative to the second end when the vehicle door is closed;

[0018] And / or, the connecting arm is provided with a second limiting convex bump, and the second limiting convex bump is used to restrict the opening of the door seat relative to the first end when the door is opened;

[0019] And / or, the connecting arm is arranged to be bent as a whole.

[0020] Optionally, a self-limiting structure is provided between the second end and the vehicle body seat, for limiting the relative movement between the connecting arm and the vehicle body seat.

[0021] Optionally, the self-limiting structure includes a first limiting component, the first limiting component includes a matching limiting pin and a limiting groove, the limiting pin is arranged at one of the vehicle body seat and the second end, and the limiting groove is arranged at the other of the vehicle body seat and the second end.

[0022] Optionally, a plurality of the limiting grooves are provided and are arranged at intervals at the second end.

[0023] Optionally, the self-limiting structure further includes a second limiting component, which is elastically connected to the vehicle body seat and supported on the second end.

[0024] Optionally, the second limiting assembly includes a limiting plate and a force applying member, one side of the limiting plate is supported on the second end, and the other side is connected to the force applying member, and the force applying member is connected to the vehicle body seat.

[0025] Optionally, when the vehicle door is opened, the connecting arm successively has a first motion state in which the first end and the vehicle door seat rotate relative to each other and the second end and the vehicle body seat remain relatively still, and a second motion state in which the first end and the vehicle door seat remain relatively still and the second end and the vehicle body seat rotate relative to each other;

[0026] In the first movement state, the pin shaft is located at the locking position, and in the second movement state, the pin shaft is located at the unlocking position.

[0027] The utility model also provides a vehicle, which comprises the door hinge mechanism as described above.

[0028] In the technical solution of the utility model, the first end is rotatably connected to the door seat, and the second end is rotatably connected to the vehicle body seat, and a dual-axis design is adopted to meet the rotational opening of the door in two dimensions, thereby realizing a large-angle opening of the door, and effectively avoiding the restrictions on getting on and off the vehicle for people with larger bodies and limited after-sales maintenance space due to the limited opening of the door, thereby improving the convenience of getting on and off the vehicle and maintenance, and enriching the diversity of the door opening methods.

[0029] With the movable setting of the pin shaft on the body seat, by switching the pin shaft between the locked position and the unlocked position, the uniqueness of the door opening path is guaranteed while meeting the different opening requirements of the passengers, reducing the risk of cross-overlapping of the door's rotational opening in two dimensions and improving the door's opening stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of an embodiment of a vehicle door hinge mechanism of the utility model from a first perspective;

[0032] Figure 2 for Figure 1 Sectional view at point A;

[0033] Figure 3 for Figure 1 Sectional view at B in the middle;

[0034] Figure 4 for Figure 1 A structural schematic diagram of the hinge mechanism of the middle door from a second perspective;

[0035] Figure 5 for Figure 1 A schematic structural diagram of the middle door hinge mechanism from a third-person perspective;

[0036] Figure 6 for Figure 5 A schematic diagram of the structure of the middle connecting arm and the pin shaft;

[0037] Figure 7 for Figure 5 An exploded view of the hinge mechanism of the middle door;

[0038] Figure 8 It is a top view of the door hinge mechanism, at this time, the door is in a closed state;

[0039] Fig. 9 is a top view of the door hinge mechanism, at which the connecting arm is in a first motion state;

[0040] Fig.10 for Fig. 9 Sectional view at C in the middle;

[0041] Fig.11 This is a top view of the door hinge mechanism, at which time the connecting arm is in the second movement state.

[0042] Description of Figure Numbers:

[0043] Label name Label name 10 Door seat 40 Pin 11 Limiting part 41 Operation Department 20 Body seat 42 Lock 21 Main body 50 Support 22 Limit stop 60 Return spring 23 Vias 70 Fastening bolts 30 Connecting arm 80 The first limit component 31 First End 81 Limit pin 32 Second end 82 Limit groove 33 Pin hole 90 The second limit assembly 34 Guide surface 91 Limit plate 35 The first limiting convex hull 92 Force Applicator 36 The second limiting convex hull

[0044] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions, taking "A and / or B as an example", including solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0049] The utility model provides a vehicle door hinge mechanism which is used for connecting a vehicle body and a vehicle door.

[0050] Reference Figures 1 to 11 In the embodiment of the utility model, the door hinge mechanism includes a door seat 10, a vehicle body seat 20, a connecting arm 30 and a pin 40; the door seat 10 is fixedly arranged on the vehicle door; the vehicle body seat 20 is fixedly arranged on the vehicle body; the connecting arm 30 has a first end 31 and a second end 32, the first end 31 is rotatably connected to the door seat 10, and the second end 32 is rotatably connected to the vehicle body seat 20; the pin 40 is movably mounted on the vehicle body seat 20 and has a locking position and an unlocking position. In the locking position, the vehicle body seat 20 and the second end 32 are relatively fixed, and in the unlocking position, the vehicle body seat 20 and the second end 32 are relatively rotatable. In this way, a dual-axis design is adopted to meet the rotation opening of the door in two dimensions, which can increase the full opening angle, thereby facilitating the increase of passenger boarding space and after-sales maintenance space, and enriching the diversity of door opening methods.

[0051] The first end 31 is rotatably connected to the door seat 10, and the second end 32 is rotatably connected to the vehicle body seat 20, so that the door hinge mechanism has two rotation points, which can meet the rotation and opening of the door in two dimensions and realize the door opening at a large angle. This can avoid the restrictions on getting on and off the vehicle for people with larger bodies and the limited after-sales maintenance space due to the limited door opening, thereby improving the convenience of getting on and off the vehicle and maintenance.

[0052] The door seat 10 is rotatably connected to the first end 31 of the connecting arm 30 through the door shaft, and the vehicle body seat 20 is rotatably connected to the second end 32 of the connecting arm 30 through the vehicle body shaft, and the pin shaft 40 is movably arranged on the vehicle body seat 20. When the pin shaft 40 is in the locked position, the vehicle body seat 20 and the second end 32 can be fixed as a whole through the pin shaft 40 to limit the relative movement between the vehicle body seat 20 and the second end 32. When the door is moved, the door hinge mechanism can only complete the rotation of the door seat 10 relative to the first end 31 to complete the small angle of the door. When the door seat 10 rotates a certain angle relative to the first end 31, the pin shaft 40 can unlock the lock between the vehicle body seat 20 and the second end 32 and is in the unlocked position. When the door is actuated, the second end 32 of the connecting arm 30 is driven by the door seat 10 to rotate relative to the vehicle body seat 20 to complete the full-angle opening of the door, thereby meeting the different opening requirements of the passengers. At the same time, the uniqueness of the door opening path is guaranteed, the risk of cross-overlapping of the door's rotational opening in two dimensions is reduced, and the opening stability of the door is improved.

[0053] The switch of the pin 40 between the locked position and the unlocked position can be operated manually or electrically according to the position of the door hinge mechanism. The door hinge mechanism is a casting, which is convenient for molding the door hinge mechanism and can ensure the sinking rigidity and strength of the door. In addition, due to its precision injection molding process, the surface finish of the door hinge mechanism can be guaranteed.

[0054] In the technical solution of the utility model, the first end 31 is rotatably connected to the door seat 10, and the second end 32 is rotatably connected to the vehicle body seat 20. A dual-axis design is adopted to meet the rotational opening of the door in two dimensions, thereby realizing a large-angle opening of the door, and effectively avoiding the restrictions on getting on and off the vehicle for people with larger bodies and limited after-sales maintenance space due to the limited opening of the door, thereby improving the convenience of getting on and off the vehicle and maintenance, and enriching the diversity of the door opening methods.

[0055] In conjunction with the movable setting of the pin shaft 40 on the vehicle body seat 20, by switching the pin shaft 40 between the locked position and the unlocked position, the uniqueness of the door opening path is guaranteed while meeting the different opening requirements of the passengers, reducing the risk of cross-overlapping of the door's rotational opening in two dimensions, and improving the opening stability of the door.

[0056] Combined with reference Figures 10 to 11In one embodiment, the connecting arm 30 is provided with a latch hole 33. In the locking position, the pin shaft 40 is inserted into the latch hole 33. In the unlocking position, the pin shaft 40 is separated from the latch hole 33. Then, during the rotation of the door seat 10 relative to the first end 31, the pin shaft 40 is always inserted into the latch hole 33 to ensure the relative fixation between the connecting arm 30 and the vehicle body seat 20, thereby reducing the interference of the rotation movement of the connecting arm 30 relative to the second end 32 on the stability of the door opening and closing at a small angle. The latch hole 33 can be directly provided on the connecting arm 30. In this case, the connecting arm 30 body can be bent as a whole to ensure that the latch hole 33 can be plugged and matched with the pin shaft 40 on the vehicle body seat 20. It can also be provided in the physical part extending from the connecting arm 30. The physical part is located on the rotation path of the connecting arm 30 and extends toward the vehicle body seat 20 to ensure the plugging and matching of the latch hole 33 and the pin shaft 40. The latch hole 33 can be a blind hole or a through hole.

[0057] Reference Figures 9 to 10 In one embodiment, the vehicle body seat 20 includes a main body 21 and a limit stopper 22, the main body 21 is rotatably connected to the second end 32, the limit stopper 22 is connected to the main body 21, and is provided with a through hole 23 for the pin shaft 40 to pass through; in the locked position, the through hole 23 is aligned with the latch hole 33, and in the unlocked position, the through hole 23 is staggered with the latch hole 33. It can be understood that the pin shaft 40 is movably connected to the limit stopper 22, and at this time, the limit stopper The portion 22 is provided with a through hole 23 for the pin shaft 40 to pass through. Furthermore, through the relative position between the through hole 23 and the latch hole 33, when the through hole 23 is aligned with the latch hole 33, the pin shaft 40 can pass through the through hole 23 and be inserted into the latch hole 33, thereby completing the relative fixation of the vehicle body seat 20 and the connecting arm 30; when the through hole 23 and the latch hole 33 are staggered with each other, the pin shaft 40 passes through the through hole 23 and is stopped by the edge of the latch hole 33, and the pin shaft 40 cannot be inserted into the latch hole 33, thereby ensuring the rotational movement of the connecting arm 30 relative to the vehicle body seat 20.

[0058] The second end 32 is rotatably connected to the main body 21 through the body shaft, and the limit stop part 22 is connected to the main body 21 and extends toward the connecting arm 30, ensuring that the through hole 23 on the limit stop part 22 can cooperate with the pin hole 33 on the connecting arm 30; the main body 21 and the limit stop part are an integrated structure and can be manufactured by integrated molding, welding and other processes.

[0059] Specifically, in one embodiment, a support 50 is fixed on the limit stop 22, and the support 50 is movably connected to the pin 40. The support 50 is fixed to the side of the limit stop 22 away from the connecting arm 30 by a fastener such as a fastening bolt 70 to avoid interference between the pin 40 and the connecting arm 30. The support 50 is provided with a limit hole corresponding to the through hole 23, and the pin 40 is movably inserted into the limit hole and can be raised and lowered along the axis of the limit hole, thereby realizing the movable connection between the pin 40 and the vehicle body seat 20 and the plug-in fit with the pin hole 33.

[0060] Reference Fig.10 In one embodiment, a return spring 60 is connected between the support 50 and the pin shaft 40. When the pin shaft 40 switches from the unlocked position to the locked position, the return spring 60 can assist the movement of the pin shaft 40 into the pin hole 33 to ensure the smooth reset of the pin shaft 40. At the same time, when the pin shaft 40 switches from the locked position to the unlocked position, the return spring 60 can buffer the collision force between the pin shaft 40 and the support 50, thereby extending the service life of the support 50 and the pin shaft 40.

[0061] Specifically, in one embodiment, the pin shaft 40 includes an operating part 41 and a locking part 42, one end of the operating part 41 is connected to the locking part 42, and the other end passes through the support 50, and the locking part 42 is used to insert into the pin hole 33. It can be understood that the part of the operating part 41 extending out of the support 50 can facilitate manual operation of the switching of the position of the pin shaft 40. The operating part 41 and the locking part 42 can be fixed into an integral structure by means of threaded connection, mortise and tenon, etc., and a limited position installation step is formed, so that one end of the reset spring 60 is connected to the limited position installation step, and the other end is connected to the support 50, thereby ensuring the reset operation of the pin shaft 40 and the connection between the pin shaft 40 and the support 50.

[0062] The overall size of the operating portion 41 is smaller than that of the locking portion 42. On the one hand, the effective contact area between the locking portion 42 and the hole wall of the pin hole 33 is ensured, the rigidity of the locking portion 42 and the reliability of locking the vehicle body seat 20 and the connecting arm 30 are improved, and on the other hand, the space occupied by the pin shaft 40 is reduced while ensuring manual operation. The operating portion 41 also includes a head section and a connecting section. The size of the head section is larger than that of the connecting section to ensure that the pin shaft 40 is separated from the support 50 from the limiting hole, and it is also convenient to form the limiting installation step and assemble the return spring 60.

[0063] Combined with reference Figure 5 and Figures 8 to 10In one embodiment, the connecting arm 30 is provided with a guide surface 34, and when the pin shaft 40 switches from the unlocking position to the locking position, the guide surface 34 is used to guide the pin shaft 40 to insert into the pin hole 33, wherein the guide surface 34 can be configured as an inclined arc surface, which can smoothly guide the movement of the pin shaft 40 on the connecting arm 30 and insert it into the pin hole 33.

[0064] Further, in one embodiment, the connecting arm 30 is provided with a first limiting convex bump 35, and the first limiting convex bump 35 is used to restrict the opening of the vehicle body seat 20 relative to the second end 32 when the vehicle door is closed. It can be understood that when the vehicle door is closed, the connecting arm 30 rotates close to the vehicle body seat 20, so that the pin shaft 40 extending out of the limiting stopper 22 abuts against the guide surface 34. The continued rotation of the connecting arm 30 cooperates with the guiding effect of the guide surface 34 to guide the pin shaft 40 to the pin hole 33 to complete the insertion action. During this process, the first limiting convex bump 35 is located on the path of the vehicle body seat 20 close to the connecting arm 30, and is located on the side of the pin hole 33 away from the guide surface 34. In this way, through the mutual abutment between the limiting stopper 22 and the first limiting convex bump 35, the connecting arm 30 can be limited from continuing to rotate due to inertia, thereby reducing the risk of extrusion and wear between the pin shaft 40 inserted into the pin hole 33 and the edge of the pin hole 33, thereby extending the service life, and can also ensure the alignment accuracy between the through hole 23 and the pin hole 33, thereby improving the plug-in efficiency of the pin shaft 40 and the connecting arm 30.

[0065] Reference Figure 7 In one embodiment, the connecting arm 30 is provided with a second limiting convex bump 36, and the second limiting convex bump 36 is used to restrict the opening of the door seat 10 relative to the first end 31 when the door is opened; it can be understood that the door seat 10 is provided with a limiting portion 11 that cooperates with the second limiting convex bump 36. When the door seat 10 rotates a certain angle relative to the first end 31, the limiting portion 11 abuts against the second limiting convex bump 36. When the door continues to move, the limiting portion 11 abuts against the second limiting convex bump 36, and the door seat 10 and the connecting arm 30 are relatively stationary, and the relative rotation between the connecting arm 30 and the vehicle body seat 20 cannot be affected, thereby ensuring the uniqueness of the door opening path, reducing the risk of cross-overlapping of the door's rotation opening in two dimensions, and improving the door opening stability. The free ends of the second limiting convex bump 36 and the first limiting convex bump 35 extend in opposite directions, and the space on the side of the connecting arm 30 is reasonably utilized. The limiting portion 11 is a limiting protrusion protruding from the door seat 10 .

[0066] Optionally, in one embodiment, the connecting arm 30 is integrally bent, so that while a large-angle opening is allowed, when the door is closed, the overall structure of the door hinge mechanism is compact and small in size, which helps to reduce the space occupied by assembling the door hinge mechanism and reduce the gap between the vehicle body and the door.

[0067] Reference Figures 1 to 3 In one embodiment, a self-limiting structure is provided between the second end 32 and the vehicle body seat 20, for limiting the relative movement between the connecting arm 30 and the vehicle body seat 20. Such a configuration can ensure reliable hovering and smooth opening of the door when it is opened at a large angle, thereby improving the safety when getting on and off the vehicle and improving the feel when opening and closing the door.

[0068] Reference Figure 2 In one embodiment, the self-limiting structure includes a first limiting component 80, which includes a matching limiting pin 81 and a limiting groove 82. The limiting pin 81 is provided at one of the vehicle body seat 20 and the second end 32, and the limiting groove 82 is provided at the other of the vehicle body seat 20 and the second end 32. The limiting pin 81 and the limiting groove 82 are plugged into and matched with each other to limit the relative movement between the connecting arm 30 and the vehicle body seat 20, so that the vehicle door can be stably suspended to a specific opening, and the self-movement relative to the vehicle body due to factors such as the vehicle door's own weight and the parking position can be prevented.

[0069] like Figure 1 and Figure 7 As shown, in one embodiment, the limiting groove 82 is provided in plurality and arranged at intervals at the second end 32, and each limiting groove 82 corresponds to each specific opening, and then according to the opening requirement, a limiting groove 82 is selected to be plugged and matched with the limiting pin 81 to complete the reliable suspension of the door at the opening. Specifically, due to the matching and specific structure of the connecting arm 30 and the vehicle body seat 20, the limiting groove 82 is opened on the second end 32, the limiting pin 81 is connected to the vehicle body seat 20, and the position of the limiting pin 81 on the vehicle body seat 20 is adjustable, thereby changing the depth of the limiting pin 81 inserted into the limiting groove 82, thereby changing the force required for the limiting pin 81 and the limiting groove 82. In other embodiments, the limiting groove 82 is opened on the vehicle body seat 20.

[0070] like Figure 3 and Figure 6 As shown, in one embodiment, the self-limiting structure also includes a second limiting component 90, which is elastically connected to the vehicle body seat 20 and supported on the second end 32. Therefore, during the rotation of the second end 32 relative to the vehicle body seat 20, the elastic connection between the second limiting component 90 and the vehicle body seat 20 can ensure the smoothness and stability of the rotation of the second end 32 relative to the vehicle body seat 20. At the same time, a certain holding force can be provided to the second end 32 to achieve hovering of the door with any opening.

[0071] Specifically, in one embodiment, the second limiting assembly 90 includes a limiting plate 91 and a force-applying member 92. The limiting plate 91 is supported on the second end 32 on one side and is connected to the force-applying member 92 on the other side. The force-applying member 92 is connected to the vehicle body seat 20. The force-applying member 92 is elastically connected to the vehicle body seat 20. The supporting force on the limiting plate 91 and the number of force-applying members 92 can be changed by adjusting the elastic force provided, thereby changing the hovering ability of the vehicle door. Under the action of the force-applying member 92, the limiting plate 91 can generate friction with the abutting second end 32, thereby completing the constraint of the rotational movement of the connecting arm 30 by the second limiting assembly 90.

[0072] In addition, an avoidance groove for avoiding the limit pin 81 is opened on the limit plate 91, which helps to reduce the impact of the limit plate 91 on the limit pin 81. There are multiple force-applying members 92 arranged in an array, and a limit pin 81 is set between two adjacent force-applying members 92, so as to make full use of the installation gap between the two adjacent force-applying members 92. At the same time, the holding force provided by the second limit component 90 and the plug-in cooperation between the limit groove 82 and the limit pin 81 can further improve the hovering ability of the vehicle door.

[0073] Optionally, in one embodiment, when the vehicle door is opened, the connecting arm 30 successively has a first motion state in which the first end 31 rotates relative to the vehicle door seat 10 and the second end 32 and the vehicle body seat 20 are relatively stationary, and a second motion state in which the first end 31 and the vehicle door seat 10 are relatively stationary and the second end 32 and the vehicle body seat 20 rotate relative to each other; in the first motion state, the pin shaft 40 is located in the locked position, and in the second motion state, the pin shaft 40 is located in the unlocked position.

[0074] Specifically, a dual-axis design is adopted to realize the rotational opening of the door in two dimensions, and the uniqueness of the door opening path and the door closing path is realized by switching the pin shaft 40 between the locked position and the unlocked position. Furthermore, during the process of opening the door, when the door is acted upon, the pin shaft 40 is connected in series with the vehicle body seat 20 and the connecting arm 30, and the vehicle body seat 20 and the connecting arm 30 are relatively stationary. At this time, the pin shaft 40 is in the locked position, and the door action can only make the connecting arm 30 have a first motion state in which the first end 31 rotates relative to the door seat 10, thereby realizing the small-angle opening of the door; when the door seat 10 rotates a certain angle relative to the first end 31, the second limiting convex bump 36 and the limiting portion of the door seat 10 are 11 is abutted. When the door action continues, the limiting portion 11 abuts against the second limiting convex bump 36, and the door seat 10 and the connecting arm 30 are relatively stationary, and the relative rotation between the connecting arm 30 and the vehicle body seat 20 cannot be affected. The pin shaft 40 is switched from the locked position to the unlocked position manually or electrically. Since the rotation restriction between the connecting arm 30 and the vehicle body seat 20 is eliminated, the door action can make the connecting arm 30 have a second motion state in which the second end 32 rotates relative to the vehicle body seat 20, thereby realizing a large-angle opening of the door. In addition, the first limiting assembly 80 and the second limiting assembly 90 cooperate with the second end 32 to realize reliable hovering when the door is opened at a large angle.

[0075] During the process of closing the vehicle door, the connecting arm 30 successively has a second motion state and a first motion state. During the process of switching from the second motion state to the first motion state, through the guiding cooperation between the guide surface 34 and the pin shaft 40, and the stopping cooperation between the limit stop part 22 and the first limit convex bump 35, the pin shaft 40 is reliably switched from the unlocking position to the locking position, thereby realizing the reliable closing of the vehicle door.

[0076] The utility model also proposes a vehicle, which includes a door hinge mechanism. The specific structure of the door hinge mechanism refers to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0077] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A door hinge mechanism for connecting a vehicle body and a door, characterized in that: The door hinge mechanism comprises: A door seat, fixedly mounted on the door; A vehicle body seat, fixedly arranged on the vehicle body; a connecting arm having a first end and a second end, wherein the first end is rotatably connected to the door seat and the second end is rotatably connected to the vehicle body seat; and The pin shaft is movably mounted on the vehicle body seat and has a locking position and an unlocking position. In the locking position, the vehicle body seat and the second end are relatively fixed, and in the unlocking position, the vehicle body seat and the second end can rotate relatively.

2. The door hinge mechanism according to claim 1, characterized in that: The connecting arm is provided with a latch hole. In the locking position, the pin shaft is inserted into the latch hole. In the unlocking position, the pin shaft is disengaged from the latch hole.

3. The door hinge mechanism according to claim 2, characterized in that: The vehicle body seat comprises a main body and a limit stopper, wherein the main body is rotatably connected to the second end, and the limit stopper is connected to the main body and is provided with a through hole for the pin shaft to pass through; In the locked position, the through hole is aligned with the latch hole, and in the unlocked position, the through hole is staggered with the latch hole.

4. The door hinge mechanism according to claim 3, characterized in that: A support is fixed on the limit stop part, and the support is movably connected with the pin shaft.

5. The door hinge mechanism according to claim 4, characterized in that: A return spring is connected between the support and the pin shaft; And / or, the pin shaft includes an operating part and a locking part, one end of the operating part is connected to the locking part, and the other end passes through the support, and the locking part is used to be inserted into the pin hole.

6. The door hinge mechanism according to claim 2, characterized in that: The connecting arm is provided with a guide surface, and in the process of the pin shaft switching from the unlocking position to the locking position, the guide surface is used to guide the pin shaft to insert into the pin hole.

7. The door hinge mechanism according to claim 1, characterized in that: The connecting arm is provided with a first limiting convex bump, and the first limiting convex bump is used to restrict the opening of the vehicle body seat relative to the second end when the vehicle door is closed; And / or, the connecting arm is provided with a second limiting convex bump, and the second limiting convex bump is used to restrict the opening of the door seat relative to the first end when the door is opened; And / or, the connecting arm is arranged to be bent as a whole.

8. The door hinge mechanism according to claim 1, characterized in that: A self-limiting structure is provided between the second end and the vehicle body seat, for limiting the relative movement between the connecting arm and the vehicle body seat.

9. The door hinge mechanism according to claim 8, characterized in that: The self-limiting structure includes a first limiting assembly, which includes a matching limiting pin and a limiting groove. The limiting pin is arranged at one of the vehicle body seat and the second end, and the limiting groove is arranged at the other of the vehicle body seat and the second end.

10. The door hinge mechanism according to claim 9, characterized in that: The limiting grooves are provided in plurality and are arranged at intervals at the second end.

11. The door hinge mechanism according to claim 8, characterized in that: The self-limiting structure further comprises a second limiting component, which is elastically connected to the vehicle body seat and supported at the second end.

12. The door hinge mechanism according to claim 11, characterized in that: The second limiting assembly includes a limiting plate and a force applying member. One side of the limiting plate is supported on the second end, and the other side is connected to the force applying member, and the force applying member is connected to the vehicle body seat.

13. The door hinge mechanism according to claim 1, characterized in that: When the vehicle door is opened, the connecting arm successively has a first motion state in which the first end and the vehicle door seat rotate relative to each other and the second end and the vehicle body seat remain relatively still, and a second motion state in which the first end and the vehicle door seat remain relatively still and the second end and the vehicle body seat rotate relative to each other; In the first movement state, the pin shaft is located at the locking position, and in the second movement state, the pin shaft is located at the unlocking position.

14. A vehicle, characterized in that: The vehicle door hinge mechanism comprises the vehicle door hinge mechanism as claimed in any one of claims 1 to 13.

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