Door opening mechanism and vehicle

Abstract

The door opening mechanism comprises a telescopic sub-mechanism and a sliding sub-mechanism, the telescopic sub-mechanism is suitable for being installed on a vehicle body of a vehicle, the sliding sub-mechanism is suitable for being installed on a vehicle door of the vehicle, and the end of the outer side of the vehicle of the telescopic sub-mechanism is connected with the sliding sub-mechanism; the movement track of the vehicle outer side end of the telescopic sub-mechanism is gradually bent and extends forwards from the interior to the exterior of the vehicle, and the sliding sub-mechanism is used for guiding the vehicle door to slide relative to the vehicle outer side end of the telescopic sub-mechanism when the telescopic sub-mechanism is in an extending state; when the vehicle door is in a closed state, the vehicle outer side end of the telescopic sub-mechanism is located at the rear end of the sliding sub-mechanism. The invention further provides a vehicle. The door opening mechanism is suitable for the rear side door of the vehicle, a more reasonable door opening track is formed through the door opening mechanism, interference between the rear side door and vehicle parts can be better prevented, and the design difficulty of the vehicle door can be reduced. The invention has the characteristics of few parts, small opening space requirement, easiness in implementation and low cost.

Description

Technical Field

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

[0002] Some vehicles are equipped with sliding doors, the door body of which is connected to the vehicle body via a sliding mechanism. Sliding doors can open in relatively narrow spaces and create a large opening after sliding open. However, existing sliding doors may have the following technical problems: Sliding doors typically consist of an upper hinge, a middle hinge, a lower hinge, an upper guide rail, a middle guide rail, and a lower guide rail. They have the problems of complex structure, many parts, high cost, and high requirements for layout space. Sliding doors typically require multiple actuators to achieve automatic opening, which increases costs. Because the upper guide rail encroaches on the interior passenger compartment space, it is difficult for most models to be equipped with sliding doors. Sliding doors are usually used in the rear doors of MPV models, which limits the application of sliding doors. For suicide doors, opening and closing are typically achieved through the relative movement between the front and rear doors. When the front and / or rear doors are sliding doors, a specific avoidance design is required between them to prevent interference during opening. If this avoidance is primarily achieved by adjusting the structure or shape of the front and rear doors, it imposes numerous limitations on their structural layout and design. This not only increases design complexity but may also lead to structural and sealing issues in the suicide door design. Summary of the Invention

[0003] The purpose of this invention is to provide a door opening mechanism and vehicle to alleviate or eliminate at least one of the aforementioned technical problems.

[0004] The present invention discloses a door opening mechanism comprising a telescopic sub-mechanism and a sliding sub-mechanism. The telescopic sub-mechanism is adapted to be installed on the vehicle body, and the sliding sub-mechanism is adapted to be installed on the vehicle door. The outer end of the telescopic sub-mechanism is connected to the sliding sub-mechanism. The movement trajectory of the outer end of the telescopic sub-mechanism gradually curves forward from the inside of the vehicle to the outside. The sliding sub-mechanism is used to guide the door to slide relative to the outer end of the telescopic sub-mechanism when the telescopic sub-mechanism is in the extended state. When the door is in the closed state, the outer end of the telescopic sub-mechanism is located at the rear end of the sliding sub-mechanism.

[0005] Optionally, it also includes a drive submechanism, wherein the power input end of the telescopic submechanism is provided with a first power input component, and the power input end of the sliding submechanism is provided with a second power input component. The drive submechanism includes a rotating shaft, a double-headed bevel gear, and a motor capable of driving the rotating shaft to rotate. The double-headed bevel gear is mounted on the rotating shaft in a manner that allows it to move axially relative to the rotating shaft between a first position and a second position. A first clutch structure and a second clutch structure are provided between the double-headed bevel gear and the rotating shaft. When the double-headed bevel gear is in the first position, the first clutch structure is engaged, the second clutch structure is disengaged, the first power input component meshes with one bevel gear portion of the double-headed bevel gear, the second power input component is disengaged from the double-headed bevel gear, and the power output by the motor can drive the telescopic submechanism to extend and retract, thereby moving the door towards the outside or inside of the vehicle. When the double-headed bevel gear is in the second position, the first clutch structure disengages, the second clutch structure engages, the first power input component disengages from the double-headed bevel gear, and the second power input component meshes with another bevel gear portion of the double-headed bevel gear. The power output by the motor can drive the sliding sub-mechanism to slide, thereby causing the door to slide. When the torque output by the motor is greater than the preset torque, the axial component force generated by the first power input component or the second power input component meshing with the double-ended bevel gear pushes the double-ended bevel gear to move axially, so that the double-ended bevel gear switches between the first position and the second position.

[0006] Optionally, one of the rotating shaft and the double-ended bevel gear is provided with two slots, and the other of the rotating shaft and the double-ended bevel gear is provided with a ball pin. The ball pin and one of the slots constitute the first clutch structure, and the ball pin and the other slot constitute the second clutch structure.

[0007] Optionally, the telescopic submechanism includes a mounting base adapted to be fixedly connected to the vehicle body and a telescopic arm slidably connected to the mounting base. The telescopic arm is an arc-shaped arm. When the telescopic submechanism is in the extended state, the telescopic arm gradually bends and extends forward from inside the vehicle to outside the vehicle.

[0008] Optionally, the telescopic submechanism further includes a threaded sleeve adapted to be hinged to the mounting base or the vehicle body and a screw threadedly engaged with the threaded sleeve. The drive submechanism is installed at the outer end of the telescopic submechanism, and the outer end of the screw is connected to the first power input component.

[0009] Optionally, the first power input component is a bevel gear.

[0010] Optionally, the sliding sub-mechanism includes a connecting part, a first guide rail, and a second guide rail. The first guide rail and the second guide rail are arranged at intervals in the direction from inside the vehicle to outside the vehicle. The connecting part is slidably connected to the first guide rail and the second guide rail. The first guide rail is a linear guide rail. The second guide rail includes a first guide rail segment, a second guide rail segment, and a third guide rail segment arranged sequentially from back to front. The first guide rail segment is parallel to the first guide rail, the third guide rail segment is parallel to the first guide rail, and the second guide rail segment extends obliquely from back to front in the direction from inside the vehicle.

[0011] Optionally, the motor and the double-headed bevel gear are mounted on the connecting part.

[0012] Optionally, the second power input component is a rack connected to the first guide rail, the length of which extends along the length direction of the first guide rail.

[0013] The present invention also proposes a vehicle including any of the door opening mechanisms described above.

[0014] The door opening mechanism proposed in this invention is applicable to the rear doors of vehicles. By utilizing this mechanism to create a more rational door opening trajectory, it can better prevent interference between the rear door and vehicle components, thus helping to reduce the design complexity of the door. This invention features fewer parts, smaller opening space requirements, ease of implementation, and low cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the door opening mechanism described in some embodiments; Figure 2 This is a front view of the door opening mechanism described in some embodiments; Figure 3 This is a bottom view of the door opening mechanism described in some embodiments; Figure 4 This is a side view of the door opening mechanism described in some embodiments; Figure 5 for Figure 3 AA section view in the middle; Figure 6 for Figure 5 A magnified view of a portion of the document; Figure 7 This is a partial structural diagram of the vehicle described in some embodiments; Figure 8 This is a partial bottom view of the vehicle described in some embodiments; Figure 9 This is a schematic diagram showing the rear door rotating outward as described in some embodiments; Figure 10 This is a schematic diagram of the first stage of the rear door opening process described in some embodiments; Figure 11 This is a schematic diagram of the third stage of the rear door opening process described in some embodiments; Figure 12 This is a schematic diagram of the trajectory lines of the first and second guide rails described in some embodiments.

[0016] In the diagram, 1—door opening mechanism, 2—rear door, 3—rear side panel, 4—front door, 5—sill beam, 6—first trajectory line, 7—second trajectory line. 101—Mounting base; 102—Telescopic arm; 103—Screw drive structure; 104—Motor; 105—First guide rail; 106—Second guide rail; 107—Mounting bracket; 108—Screw; 109—Threaded sleeve; 110—Connecting part; 111—Double-headed bevel gear; 112—First bevel gear section; 113—Second bevel gear section; 114—Bevel gear; 115—Rack; 116—Ball pin; 117—Slot; 118—Telescopic sub-mechanism; 119—Sliding sub-mechanism 701—First trajectory segment, 702—Second trajectory segment, 703—Third trajectory segment. Detailed Implementation

[0017] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0018] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0019] like Figures 1 to 3The door opening mechanism 1 shown includes a telescopic sub-mechanism 118 and a sliding sub-mechanism 119. The telescopic sub-mechanism 118 is adapted to be installed on the vehicle body, and the sliding sub-mechanism 119 is adapted to be installed on the vehicle door. The outer end of the telescopic sub-mechanism 118 is connected to the sliding sub-mechanism 119. The movement trajectory of the outer end of the telescopic sub-mechanism 118 gradually curves forward from the inside of the vehicle to the outside. The sliding sub-mechanism 119 is used to guide the door to slide relative to the outer end of the telescopic sub-mechanism 118 when the telescopic sub-mechanism 118 is in the extended state. When the door is in the closed state, the outer end of the telescopic sub-mechanism 118 is located at the rear end of the sliding sub-mechanism 119.

[0020] By adopting the above technical solution, the telescopic sub-mechanism 118 is used to limit the movement trajectory of the outer end of the door. When the door is opened, the telescopic sub-mechanism 118 pushes the rear part of the door along the movement trajectory, opening the door at a certain angle, so that the door can better avoid vehicle components. By using the door opening mechanism 1 to form a more reasonable door opening trajectory, interference between the rear door 2 and vehicle components can be better prevented, which helps to reduce the design difficulty of the door.

[0021] The aforementioned door opening mechanism 1 is particularly suitable for the rear door 2 of a vehicle, allowing the rear door 2 to better avoid the front door 4. Especially for suicide doors, it can reduce the restrictions on the door body and help reduce the design difficulty of suicide doors.

[0022] In some embodiments, such as Figures 1 to 6 As shown, the door opening mechanism 1 also includes a drive sub-mechanism. The power input end of the telescopic sub-mechanism 118 is provided with a first power input component, and the power input end of the sliding sub-mechanism 119 is provided with a second power input component. The drive sub-mechanism includes a rotating shaft, a double-headed bevel gear 111, and a motor 104 capable of driving the rotating shaft to rotate. The double-headed bevel gear 111 is mounted on the rotating shaft in a manner that allows it to move axially between a first position and a second position relative to the rotating shaft. A first clutch structure and a second clutch structure are provided between the double-headed bevel gear 111 and the rotating shaft. When the double-headed bevel gear 111 is in the first position, the first clutch structure is engaged, the second clutch structure is disengaged, the first power input component meshes with the first bevel gear portion 112 of the double-headed bevel gear 111, the second power input component is disengaged from the double-headed bevel gear 111, and the power output by the motor 104 can drive the telescopic submechanism 118 to extend and retract, so as to move the door to the outside or inside of the vehicle. When the double-headed bevel gear 111 is in the second position, the first clutch structure is disengaged and the second clutch structure is engaged. The first power input component is disengaged from the double-headed bevel gear 111, and the second power input component meshes with the second bevel gear portion 113 of the double-headed bevel gear 111. The power output by the motor 104 can drive the sliding sub-mechanism 119 to slide, thereby driving the door to slide. When the torque output by the motor 104 is greater than the preset torque, the axial component force generated by the first power input component or the second power input component meshing with the double-headed bevel gear 111 pushes the double-headed bevel gear 111 to move axially, so that the double-headed bevel gear 111 switches between the first position and the second position.

[0023] By adopting the above technical solution, and through the reasonable arrangement of the drive submechanism, a single motor 104, in conjunction with a specific power switching scheme, can provide driving force for the telescopic submechanism 118 and the sliding submechanism 119. Furthermore, the torque output by the motor 104 itself is used to generate the thrust that drives the double-headed bevel gear 111 to switch positions, which has the advantages of fewer parts, smaller layout space requirements, and lower cost.

[0024] In specific implementation, the two ends of the double-headed bevel gear 111 are respectively provided with a first bevel gear part 112 and a second bevel gear part 113. The double-headed bevel gear 111 is mounted on the rotating shaft. The clutch structure in the first clutch structure and the second clutch structure in the engaged state transmits torque between the double-headed bevel gear 111 and the rotating shaft, so that the double-headed bevel gear 111 and the rotating shaft rotate synchronously.

[0025] In practical implementation, the preset torque can be determined based on the holding forces of the first and second clutch structures, or vice versa. When the torque output by the motor 104 is greater than the preset torque, the axial component force generated by the first or second power input component meshing with the double-ended bevel gear 111 can overcome the aforementioned holding force. Obviously, the preset torque is not greater than the maximum stall torque of the motor 104. When the motor 104 is stalled, the torque output by the motor 104 gradually increases until it reaches the preset torque.

[0026] In some embodiments, one of the rotating shaft and the double-ended bevel gear 111 is provided with two slots 117, and the other of the rotating shaft and the double-ended bevel gear 111 is provided with a ball pin 116. The ball pin 116 and one slot 117 form a first clutch structure, and the ball pin 116 and the other slot 117 form a second clutch structure. Using one ball pin 116 in conjunction with two slots 117 to form two clutch structures has the advantage of reducing the number of parts. In a specific implementation, the two slots 117 are spaced apart from each other in the axial direction of the rotating shaft.

[0027] As a specific example, the shaft is provided with a radial blind hole, and the ball pin 116 includes a spring element and a ball installed in the blind hole. The spring element presses against the ball so that the ball can be engaged and disengaged from the slot 117.

[0028] In some embodiments, the telescopic submechanism 118 includes a mounting base 101 adapted to be fixedly connected to the vehicle body and a telescopic arm 102 slidably connected to the mounting base 101. The telescopic arm 102 is an arc-shaped arm. When the telescopic submechanism 118 is in the extended state, the telescopic arm 102 gradually bends forward from the inside of the vehicle to the outside. In a specific implementation, the mounting base 101 is provided with a guide hole that cooperates with the telescopic arm 102. Guided by the guide hole, the outer end of the telescopic arm 102 gradually bends forward from the inside of the vehicle to the outside.

[0029] In some embodiments, the telescopic submechanism 118 further includes a threaded sleeve 109 adapted to be hinged to the mounting base 101 or the vehicle body, and a screw 108 threadedly engaged with the threaded sleeve 109. The drive submechanism is mounted at the outer end of the telescopic submechanism 118, and the outer end of the screw 108 is connected to the first power input component. As a preferred embodiment, the inner end of the threaded sleeve 109 is adapted to be hinged to the vehicle body. When the motor 104 and the double-ended bevel gear 111 are mounted on the outer end of the telescopic arm 102, the double-ended bevel gear 111 drives the screw 108 to rotate, thereby driving the telescopic arm 102 to slide relative to the mounting base 101, thus realizing the automatic extension and retraction of the telescopic submechanism 118.

[0030] The aforementioned telescopic submechanism 118 adopts a screw drive structure 103, but obviously, transmission can also be achieved through a cam slider, flexible shaft and transmission belt structure.

[0031] In some embodiments, the first power input element is a bevel gear 114. The bevel gear 114 can meet the requirement of the double-ended bevel gear 111 driving the screw 108 to rotate, and the bevel gear 114 can generate an axial component force for pushing the double-ended bevel gear 111 to move axially.

[0032] In some embodiments, the sliding sub-mechanism 119 includes a connecting portion 110, a first guide rail 105, and a second guide rail 106. The first guide rail 105 and the second guide rail 106 are arranged at intervals in the direction from inside the vehicle to outside the vehicle. The connecting portion 110 is slidably connected to the first guide rail 105 and the second guide rail 106. The first guide rail 105 is a linear guide rail, and the second guide rail 106 includes a first guide rail segment, a second guide rail segment, and a third guide rail segment arranged sequentially from back to front. The first guide rail segment is parallel to the first guide rail 105, and the third guide rail segment is parallel to the first guide rail 105. The second guide rail segment extends obliquely from back to front towards the inside of the vehicle. By adopting the above technical solution, the first guide rail 105 is used to limit the forward and backward movement of the door, and the second guide rail 106 is used to adjust the tilt angle of the door, which can achieve a more precise door opening trajectory. This allows the door to avoid vehicle components while ensuring that the lateral space requirement for door opening is minimized.

[0033] In practical implementation, the first guide rail 105 and the second guide rail 106 can be fixedly connected to the car door by the mounting bracket 107. The connecting part 110 is provided with a first sliding part that slides with the first guide rail 105 and a second sliding part that slides with the second guide rail 106. The first sliding part can be provided with a mating hole that slides with the first guide rail 105, and the second sliding part can be provided with a rod that slides with a guide groove on the second guide rail 106. A roller can be installed on the rod, and the roller cooperates with the guide groove. The length of the guide groove extends along the length direction of the second guide rail 106.

[0034] More specifically, since the door is at a certain angle after the telescopic submechanism 118 pushes it open, the inclined second guide rail section can guide the door to swing to a position parallel or roughly parallel to the rear side of the vehicle body, which helps to reduce the lateral space requirement for opening the vehicle door.

[0035] In some embodiments, the motor 104 and the double-ended bevel gear 111 are mounted on the connecting part 110. Mounting the motor 104 and the double-ended bevel gear 111 on the connecting part 110 has the characteristics of reasonable layout and compact structure.

[0036] As a preferred example, the connecting part 110 can be the end of the telescopic arm 102, or it can be a component fixedly connected to the outer end of the telescopic arm 102. The connecting part 110 provides both a first mating structure and a second mating structure, and can also provide a mounting point for the drive submechanism, featuring a compact structure.

[0037] In some embodiments, the second power input component is a rack 115 connected to the first guide rail 105, and the length of the rack 115 extends along the length direction of the first guide rail 105. By driving the rack 115 to move using the double-ended bevel gear 111, the first guide rail 105 and the second guide rail 106 can slide back and forth relative to the connecting portion 110, thereby realizing the back-and-forth sliding and swinging of the vehicle door. In specific implementations, the rack 115 can be fixedly connected to the first guide rail 105, integrally formed with the first guide rail 105, or directly fixedly installed on the vehicle door. The rack 115 is preferably a helical rack, which can generate an axial component force for pushing the double-ended bevel gear 111 to move axially.

[0038] In some embodiments, the rotating shaft is the motor shaft of the motor 104, and the double-headed bevel gear 111 is directly driven by the motor 104, which has the characteristics of having fewer parts, being easy to assemble, and being easy to implement.

[0039] As a preferred embodiment, the double-headed bevel gear 111 can be installed in the inner cavity of the connecting part 110, and the motor 104 is fixedly installed on the lower side of the connecting part 110 by a bracket, with the motor shaft of the motor 104 engaging with the center hole of the double-headed bevel gear 111.

[0040] In practical implementation, a travel limiting structure can be used to cause the motor 104 to stall. For example, two limiting members can be used to limit the travel range of the relative movement between the first guide rail 105 and the connecting part 110, and the mounting bracket 107 of the first guide rail 105 can be used as the limiting member. As another example, two protrusions can be provided on the screw 108 to limit the travel range of the screw 108 relative to the threaded sleeve 109.

[0041] In practical implementation, the aforementioned door opening mechanism 1 is particularly suitable for pillarless vehicles with suicide doors. This mechanism is especially applicable to the rear door 2 of the suicide door design, enriching the implementation methods of suicide doors, allowing for a more spacious entry and exit space, and reducing the limitations on the structure of the front door 4 of suicide doors in pillarless vehicles. Clearly, this door opening mechanism 1 is also suitable for vehicles with a B-pillar.

[0042] like Figure 7 and Figure 8 As shown, in specific implementation, the first guide rail 105 and the second guide rail 106 can be fixedly connected to the door by mounting brackets and bolts, and the mounting seat 101 can be fixedly connected to the door sill beam 5 by bolts, so as to provide space for the telescopic arm 102 by utilizing the space under the vehicle floor.

[0043] like Figures 9 to 11 As shown, the opening process of the aforementioned door opening mechanism 1 is as follows: After the rear door 2 is unlocked, the motor 104 rotates, driving the double-headed bevel gear 111 to rotate, which in turn drives the screw 108 to rotate. Since the threaded sleeve 109 is hinged to the vehicle body end, the screw 108 rotates outward, thereby driving the telescopic arm 102 to slide outward. The telescopic arm 102, sliding outward, pushes the rear door 2 to rotate outward along a fixed trajectory. After the screw 108 has exhausted its thread, the rear door 2 reaches the preset swing angle α, and the motor 104 stalls. The force axis of the double-headed bevel gear 111 moves, the first bevel gear part 112 of the double-headed bevel gear 111 separates from the bevel gear 114, and the second bevel gear part 113 of the double-headed bevel gear 111 meshes with the rack 115. At this time, the rear door 2 stops rotating outward, and the motor 104 continues to rotate, driving the rack 115 to move, thereby driving the rear door 2 to slide open.

[0044] like Figure 12As shown, the first guide rail 105 and the second guide rail 106 can be simplified to the first trajectory line 6 and the second trajectory line 7. The two sliding parts on the telescopic arm 102 are simplified to points D and H, where point D moves along the first trajectory line 6 and point H moves along the second trajectory line 7. Since the second trajectory line 7 includes a first trajectory segment 701 corresponding to the first guide rail segment, a second trajectory segment 702 corresponding to the second guide rail segment, and a third trajectory segment 703 corresponding to the third guide rail segment, the first trajectory segment 701 is parallel to the first trajectory line 6, and the third trajectory segment 703 has an angle with the first trajectory line 6 and is parallel to the first trajectory line 6, the sliding opening process of the rear door 2 is divided into three stages: the first stage is a linear translation along a straight line at an angle α with the front-rear direction; the second stage is a combined sliding and rotational motion; and the third stage is a translation along the front-rear direction until the rear door 2 is fully opened. The closing process is the opposite of the opening process. When the rear door 2 is open, the control motor 104 reverses to achieve automatic closing. The first stage opening process described above is coordinated with the process of the telescopic submechanism 118 driving the rear door 2 to rotate outward, so that the rear door 2 can better avoid the front door 4.

[0045] The present invention also proposes a vehicle including the door opening mechanism 1 described in any of the preceding claims.

[0046] Vehicles can be, but are not limited to, pure electric vehicles (PEV / BEV), hybrid electric vehicles (HEV), range-extended electric vehicles (REEV), plug-in hybrid electric vehicles (PHEV), new energy vehicles, and gasoline vehicles.

[0047] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. In the description of this specification, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0048] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "outside the vehicle," and "inside the vehicle," etc., indicate the location based on the appendix. Figure 2 and attached Figure 3 The coordinate system used in this invention is for the purpose of facilitating and simplifying the description of the invention, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the invention.

Claims

1. A door opening mechanism, characterized in that, The system includes a telescopic sub-mechanism (118) and a sliding sub-mechanism (119). The telescopic sub-mechanism (118) is adapted to be installed on the vehicle body, and the sliding sub-mechanism (119) is adapted to be installed on the vehicle door. The outer end of the telescopic sub-mechanism (118) is connected to the sliding sub-mechanism (119). The movement trajectory of the outer end of the telescopic sub-mechanism (118) gradually bends forward from inside the vehicle to outside the vehicle. The sliding sub-mechanism (119) is used to guide the vehicle door to slide relative to the outer end of the telescopic sub-mechanism (118) when the telescopic sub-mechanism (118) is in the extended state. When the vehicle door is in the closed state, the outer end of the telescopic sub-mechanism (118) is located at the rear end of the sliding sub-mechanism (119).

2. The door opening mechanism according to claim 1, characterized in that, It also includes a drive sub-mechanism, wherein the power input end of the telescopic sub-mechanism (118) is provided with a first power input component, and the power input end of the sliding sub-mechanism (119) is provided with a second power input component. The drive sub-mechanism includes a rotating shaft, a double-headed bevel gear (111), and a motor (104) capable of driving the rotating shaft to rotate. The double-headed bevel gear (111) is mounted on the rotating shaft in a manner that allows it to move axially relative to the rotating shaft between a first position and a second position. A first clutch structure and a second clutch structure are provided between the double-headed bevel gear (111) and the rotating shaft. When the double-headed bevel gear (111) is in the first position, the first clutch structure is engaged, the second clutch structure is disengaged, the first power input component meshes with one bevel gear portion of the double-headed bevel gear (111), the second power input component is disengaged from the double-headed bevel gear (111), and the power output by the motor (104) can drive the telescopic submechanism (118) to extend and retract, so as to drive the door to move outward or inward; When the double-headed bevel gear (111) is in the second position, the first clutch structure is disengaged, the second clutch structure is engaged, the first power input component is disengaged from the double-headed bevel gear (111), the second power input component is engaged with another bevel gear part of the double-headed bevel gear (111), and the power output by the motor (104) can drive the sliding sub-mechanism (119) to slide, thereby driving the door to slide. When the torque output by the motor (104) is greater than the preset torque, the axial component force generated by the first power input component or the second power input component meshing with the double-headed bevel gear (111) pushes the double-headed bevel gear (111) to move axially, so that the double-headed bevel gear (111) switches between the first position and the second position.

3. The door opening mechanism according to claim 2, characterized in that, Two slots (117) are provided on one of the rotating shaft and the double-headed bevel gear (111), and a ball pin (116) is provided on the other of the rotating shaft and the double-headed bevel gear (111). The ball pin (116) and one of the slots (117) constitute the first clutch structure, and the ball pin (116) and the other slot (117) constitute the second clutch structure.

4. The door opening mechanism according to claim 2, characterized in that, The telescopic submechanism (118) includes a mounting base (101) suitable for fixed connection to the vehicle body and a telescopic arm (102) slidably connected to the mounting base (101). The telescopic arm (102) is an arc-shaped arm. When the telescopic submechanism (118) is in the extended state, the telescopic arm (102) gradually bends forward from inside the vehicle to outside the vehicle.

5. The door opening mechanism according to claim 4, characterized in that, The telescopic submechanism (118) further includes a threaded sleeve (109) adapted to be hinged on the mounting base (101) or the vehicle body and a screw (108) threadedly engaged with the threaded sleeve (109). The drive submechanism is installed at the outer end of the telescopic submechanism (118) on the vehicle side, and the outer end of the screw (108) on the vehicle side is connected to the first power input component.

6. The door opening mechanism according to claim 2, characterized in that, The first power input component is a bevel gear (114).

7. The door opening mechanism according to claim 2, characterized in that, The sliding sub-mechanism (119) includes a connecting part (110), a first guide rail (105), and a second guide rail (106). The first guide rail (105) and the second guide rail (106) are arranged at intervals in the direction from inside the vehicle to outside the vehicle. The connecting part (110) is slidably connected to the first guide rail (105) and the second guide rail (106). The first guide rail (105) is a linear guide rail. The second guide rail (106) includes a first guide rail segment, a second guide rail segment, and a third guide rail segment arranged sequentially from back to front. The first guide rail segment is parallel to the first guide rail (105), and the third guide rail segment is parallel to the first guide rail (105). The second guide rail segment extends obliquely from back to front in the direction from inside the vehicle.

8. The door opening mechanism according to claim 7, characterized in that, The motor (104) and the double-headed bevel gear (111) are mounted on the connecting part (110).

9. The door opening mechanism according to claim 7, characterized in that, The second power input component is a rack (115) connected to the first guide rail (105), and the length of the rack (115) extends along the length direction of the first guide rail (105).

10. A vehicle, characterized in that, Includes the door opening mechanism (1) as described in any one of claims 1-9.

Images