Automobile door inner opening mechanism for hinged door structure and automobile

By designing an inward-opening handle to drive the rotating parts and transmission mechanism, the problem of the inability to unlock the double-door car door was solved, realizing the internal opening of the double-door car door and the unlocking of the door lock assembly, making operation simple.

CN120990439APending Publication Date: 2025-11-21CHERY NEW ENERGY AUTOMOBILE TECH CO LTD
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Patent Information

Application Number
CN202511209784.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-27
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

In the existing technology, the traditional inward opening structure of the car door cannot meet the needs of cars with double doors, especially since the B-pillar is omitted from the body, which makes it impossible for the door lock mechanism to unlock effectively.

Method used

An interior door opening mechanism was designed, including an interior handle, a rotating component, a transmission component, and a swing arm. The transmission component is rotatably connected to the housing, and the transmission mechanism drives the swing arm to rotate, thereby applying opposite forces to the first and second pull cables, thus unlocking the door lock mechanisms at the top and bottom of the vehicle body.

Benefits of technology

It enables internal opening of the double-door type doors, which is convenient and quick to operate. It can simultaneously unlock the door lock assemblies at the top and bottom of the vehicle body, making up for the shortcomings of the traditional structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an automobile door inner opening mechanism for a hinged door structure and an automobile. The automobile door inner opening mechanism comprises an inner opening handle, the inner opening handle is fixedly connected with one end of a rotating piece, the other end of the rotating piece is rotationally connected with a first rotating shaft arranged on a shell, a first elastic piece is arranged between the rotating piece and the shell, and the rotating piece is connected with a transmission mechanism; the transmission mechanism is connected with the swing rod, the middle of the swing rod is rotationally connected with the shell, a second elastic piece is arranged between the middle of the swing rod and the shell, one end of the swing rod is connected with the bottom end of the first pull wire, and the other end of the swing rod is connected with the top end of the second pull wire. Rotation of the rotating piece can drive the swing rod to rotate through the transmission mechanism, rotation of the swing rod can exert pulling force on the first pull wire and the second pull wire, and the inner opening mechanism achieves inner opening of the hinged door and is convenient to operate.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile, in particular to a door opening mechanism for a split door structure and an automobile. BACKGROUND

[0002] The statements herein are provided only to enhance understanding of the present application and are not necessarily intended to constitute the prior art.

[0003] The current car door opening principle is that the driver or passenger operates an inner door handle arranged on the door, the rotation of the inner door handle pulls the pull wire connected thereto, the pull wire transmits the force from the inner side of the door panel to the door lock assembly installed between the door edge and the B column of the vehicle body, and the door lock assembly is unlocked by the force of the pull wire, so that the door can be opened from the inner side. In the above-mentioned inner opening structure, the door lock assembly needs to be arranged on the B column of the vehicle body, but for some split door type vehicles, the B column is omitted from the vehicle body, and the door lock mechanism is arranged at the top and bottom of the corresponding position of the vehicle body and the door edge. Therefore, the traditional car door opening structure cannot meet the needs of the split door opening, and therefore how to realize the inner opening of the split door is a technical problem to be solved in the field. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a door opening mechanism for a split door structure and an automobile, which realizes the inner opening of the split door structure and is convenient to operate.

[0005] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme: In a first aspect, the embodiments of the present application provide a door opening mechanism for a split door structure, comprising an inner opening handle, one end of the inner opening handle is fixedly connected with a rotating member, the other end of the rotating member is rotatably connected with a first rotating shaft arranged on a housing and a first elastic member is arranged between the rotating member and the first rotating shaft, the rotating member is connected with a transmission mechanism, the transmission mechanism is connected with a swing rod, the middle part of the swing rod is rotatably connected with the housing and a second elastic member is arranged between the swing rod and the housing, one end of the swing rod is connected with the bottom end of a first pull wire, and the other end of the swing rod is connected with the top end of a second pull wire. The rotation of the rotating member can drive the swing rod to rotate through the transmission mechanism, and the rotation of the swing rod can exert a pulling force on the first pull wire and the second pull wire.

[0006] Optionally, the transmission mechanism comprises a transmission member, the transmission member is rotatably connected with the housing, the top end of the transmission member is in contact with the rotating member, the bottom end of the transmission member is provided with a hook, the hook is connected with a lifting member, the lifting member is connected with the swing rod, and a third elastic member is arranged between the lifting member and the housing.

[0007] Optionally, the transmission member adopts a V-shaped structure, the transmission member is rotationally connected with the shell at a corner position through a second rotating shaft, one end of the transmission member is in contact with the rotating member, and the other end of the transmission member is provided with a hook which is connected with a hanging rod arranged at the top of the pulling member.

[0008] Optionally, the hanging rod is provided with a first spherical structure, and the hanging rod is connected with the hook through the first spherical structure.

[0009] Optionally, the end of the transmission member for contacting the rotating member is provided with a second spherical structure, and the transmission member is in contact with the rotating member through the second spherical structure.

[0010] Optionally, the third elastic member adopts a third spring, one end of the third spring is connected with the pulling member, and the other end of the third spring is connected with the shell.

[0011] Optionally, the pulling member is provided with an opening, the non-end eccentric position of the swing rod is provided with a driving column, the driving column extends into the opening of the pulling member, and the pulling member can drive the swing rod to rotate through cooperation of the opening and the driving column.

[0012] Optionally, the first elastic member adopts a first torsional spring arranged between the rotating member and the first rotating shaft.

[0013] Optionally, the middle position of the swing rod is rotationally connected with the shell through a third rotating shaft, and the second elastic member adopts a second torsional spring arranged between the swing rod and the third rotating shaft.

[0014] In a second aspect, an embodiment of the present application provides a car, which is a double-door car, and is provided with the car door inner opening mechanism for a double-door structure.

[0015] The present application has the following beneficial effects: The car door inner opening mechanism has the rotating member, the transmission mechanism and the swing rod, after the inner opening handle drives the rotating member to rotate, the swing rod can be driven to rotate through the transmission mechanism, so that the swing rod applies the forces in opposite directions to the first pull wire and the second pull wire at both ends of the swing rod, and the top and bottom door locking mechanisms of the car body are unlocked through the first pull wire and the second pull wire, the inner opening of the double-door car without a B column is realized, the technical gap in this aspect is made up, and the unlocking of the door lock assembly between the top of the car body and the door and between the bottom of the car body and the door can be realized at the same time by rotating the inner opening handle, so that the operation is convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings constituting a part of the specification of the present application are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application.

[0017] Figure 1 is a front view of the internal structure of the shell of embodiment 1 of the present application. Figure 2 is the back view of the whole mechanism of embodiment 1 of the present application; Figure 3 is the schematic diagram of the inside opening handle structure of embodiment 1 of the present application Figure 1 ; Figure 4 is the schematic diagram of the inside opening handle structure of embodiment 1 of the present application Figure 2 ; Figure 5 is the schematic diagram of the transmission mechanism of embodiment 1 of the present application Figure 1 ; Figure 6 is the schematic diagram of the transmission mechanism of embodiment 1 of the present application Figure 2 ; Wherein, 1. housing, 2. inside opening handle, 3. rotating part, 4. swing lever, 5. first rotating shaft, 6. first elastic part, 7. second elastic part, 8. transmission part, 9. pulling part, 10. third elastic part, 11. opening, 12. driving column; 3-1. rotating body, 3-2. connecting plate, 3-3. connecting block; 8-1. hook; 9-1. hanging rod. DETAILED DESCRIPTION For the convenience of description, if the words of "upper" and "lower" appear in the present application, they only mean the same direction as the upper and lower directions of the drawing itself, and do not limit the structure, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0018] Embodiment 1 The present embodiment provides a car door inside opening structure for opening a door structure, for opening a car door of a door opening type, as shown in Figures 1-2 , including a housing 1, an inside opening handle 2, a rotating part 3, a swing lever 4, a transmission mechanism, etc.

[0019] The housing 1 is used to be fixedly connected to the car door. One end of the inner opening handle 2 is fixedly connected to one side of the rotating part 3, and the other side of the rotating part 3 is rotatably connected to the housing 1. Specifically, the housing 1 is provided with a first rotating shaft 5, and the rotating part 3 is rotatably connected to the first rotating shaft 5 to realize the rotatable connection between the rotating part 3 and the housing 1. A first elastic element 6 is provided between the first rotating shaft 5 and the rotating part 3. The first elastic element 6 is used to reset the rotating part 3 after it rotates relative to the first rotating shaft 5. The rotating part 3 is connected to the swing arm 4 through a transmission mechanism. The middle position of the swing arm 4 is rotatably connected to the housing 1. Specifically, the housing 1 is provided with a third rotating shaft, and the middle position of the swing arm 4 is rotatably connected to the third rotating shaft. A second elastic element 7 is provided between the swing arm 4 and the third rotating shaft. The second elastic element 7 is used to reset the position of the swing arm 4.

[0020] One end of the lever 4 is connected to the bottom end of the first cable, the top end of the first cable is used to connect the door lock mechanism between the top of the vehicle body and the door, and the other end of the lever 4 is connected to the top end of the second cable, the bottom end of the second cable is used to connect the door lock mechanism between the bottom of the vehicle body and the door.

[0021] The inward-opening handle 2 can drive the rotating part 3 to rotate around the first rotating shaft 5. The rotation of the rotating part 3 can drive the swing arm 4 to rotate around the third rotating shaft through the transmission mechanism. The swing arm 4 applies a downward pulling force to the first pull cable and an upward pulling force to the second pull cable. The first pull cable unlocks the door lock assembly between the top of the vehicle body and the door, and the second pull cable unlocks the door lock assembly between the bottom of the vehicle body and the door, thereby unlocking both door lock assemblies. The driver or passenger can open the door and realize the inward opening of the door.

[0022] In this embodiment, the first rotating shaft 5 is vertically arranged, and both ends of the first rotating shaft 5 are fixedly connected to the housing 1. The first elastic element 6 is a first torsion spring. The first torsion spring is sleeved on the outer circumference of the first rotating shaft 5. The first torsion spring is connected to the first rotating shaft 5 and the rotating element 3. When the rotating element 3 rotates relative to the first rotating shaft 5, the first torsion spring can generate elastic force to reset the rotating element 3.

[0023] Furthermore, the housing 1 is also provided with a limiting component to limit the rotation angle of the rotating component 3.

[0024] like Figures 3-4 As shown, the inner opening handle 2 is an integral injection molded part, which is provided with fixing holes for fixing with the rotating part 3.

[0025] The rotating component 3 includes a rotating body 3-1, which cooperates with the transmission mechanism. A connecting plate 3-2 is provided on one side of the rotating body 3-1. The connecting plate 3-2 is fixedly connected to one end of the inner opening handle 2 by multiple screws. In this embodiment, the connecting plate 3-2 is fixedly connected to one end of the inner opening handle 2 by two screws.

[0026] In other embodiments, the connecting plate 3-2 can also be fixedly connected with one end of the inner opening handle 2 by buckling or plugging.

[0027] The other end of the rotating body 3-1 is provided with a plurality of connecting blocks 3-3, the first rotating shaft 5 passes through the connecting blocks 3-3, the connecting blocks 3-3 are in rotational connection with the first rotating shaft 5, so that the rotating member 3 is in rotational connection with the first rotating shaft 5, and the first torsional spring is arranged between the connecting blocks 3-3 and the first rotating shaft 5.

[0028] The rotating body 3-1 adopts a square tube structure, and the top and bottom are both provided with open structures.

[0029] As shown in the figure, the transmission mechanism includes a transmission member 8, a pulling member 9, and a third elastic member 10. Figures 5-6

[0030] The transmission member 8 adopts a V-shaped structure, a second rotating shaft 11 passes through the corner position, the transmission member 8 is in rotational connection with the second rotating shaft 11, and the end of the second rotating shaft 11 is fixedly connected with the shell 1.

[0031] The transmission member 8 includes a first transmission part and a second transmission part in V-shaped distribution, the bottom end of the first transmission part is integrally connected with the top end of the second transmission part, and the top end of the first transmission part extends into the bottom of the internal cavity of the rotating body 3-1 and is in contact with the cavity surface of the internal cavity of the rotating body 3-1.

[0032] Further, in order to reduce the frictional damage between the end of the first transmission part and the cavity surface of the internal cavity of the rotating body 3-1, a second spherical structure is arranged at the top end of the first transmission part, and the transmission member 8 is in contact with the cavity surface of the internal cavity of the rotating body 3-1 through the second spherical structure.

[0033] The top end of the second transmission part is integrally connected with the bottom end of the first transmission part, and the bottom end of the second transmission part is provided with a hook 8-1.

[0034] The top of the pulling member 9 is provided with a hanging rod 9-1 matched with the hook, and the hanging rod 9-1 and the hook 8-1 are in hanging connection.

[0035] Specifically, the pulling member 9 includes a pulling member body, the top of the pulling member body is provided with two supporting rods, and the top of the two supporting rods is provided with the hanging rod 9-1.

[0036] The hanging rod 9-1 is matched with the hook 8-1 and can be in hanging connection with the hook 8-1.

[0037] Further, in order to reduce the frictional damage between the hanging rod 9-1 and the hook 8-1, a first spherical structure is arranged at the center of the hanging rod 9-1, and the first spherical structure is in contact with the hook 8-1.

[0038] ​The third elastic member 10 is arranged between the supporting rod and the shell 1, and can generate elastic force to reset the puller 9 when the puller 9 is lifted by the transmission member 8.

[0039] In the embodiment, the third elastic member 10 is a spring, one end of which is connected to the supporting rod through a hook arranged on the outer side of the supporting rod, and the other end of which is connected to the shell 1.

[0040] The puller body is connected to the eccentric position of the swing rod 4, and the lifting of the puller 9 can drive the swing rod to rotate.

[0041] In the embodiment, the puller body is provided with an opening 11, and preferably, the opening 11 is a rectangular opening, and the swing rod 4 is provided with a driving column 12 at the eccentric position of the non-end portion, the driving column 12 extending into the rectangular opening, and the area of the rectangular opening is greater than the sectional area of the driving column 12.

[0042] In the embodiment, the driving column 12 is arranged close to the end of the swing rod connected to the second pull wire.

[0043] The shell 1 is provided with a hole through which the first pull wire and the second pull wire extend to the outside of the shell.

[0044] The working method of the door opening mechanism for the door structure is as follows: The driver or passenger rotates the inner opening handle 2, the inner opening handle 2 drives the rotating member 3 to rotate around the first rotating shaft 5, the cavity surface of the rotating body 3-1 inside the cavity is in contact with the second spherical structure, the rotating driving transmission member 8 of the rotating body 3-1 rotates around the second rotating shaft 11, the bottom of the second rotating part of the transmission member 8 rotates upward, the puller 9 is lifted through the hook 8-1 and the hanging rod 9-1, the swing rod 4 is rotated through the cooperation of the opening 11 and the driving column 12, and the end of the swing rod 4 connected to the second pull wire rotates upward, and the end connected to the first pull wire rotates downward.

[0045] The first pull wire is subjected to downward force, and drives the door lock assembly between the top of the vehicle body and the door to be unlocked, and the second pull wire is subjected to upward force, and drives the door lock assembly between the bottom of the vehicle body and the door to be unlocked.

[0046] At this time, the door can be opened from the inside.

[0047] After the inner opening handle is released, the rotating member 3 and the inner opening handle 2 are reset, the puller 9 is reset, and the swing rod 4 is reset under the action of the first torsional spring, the second torsional spring and the spring.

[0048] The inner opening mechanism for the car door of the double-door structure of the embodiment realizes the inner opening of the double-door type car door without B column, fills the technical blank in this aspect, and simultaneously realizes the unlocking of the door lock assembly between the top of the car body and the car door and between the bottom of the car body and the car door through the rotation of the inner opening handle, which is convenient and fast.

[0049] Embodiment 2 The embodiment provides a car, which is a double-door type car, and the car is provided with the inner opening mechanism for the car door of the double-door structure of the embodiment 1, wherein the opening mechanism is arranged at the middle position of the outer edge of the car door. The door lock assembly is arranged between the top of the outer edge of the car door and the corresponding position of the top of the car body, and the door lock assembly is arranged between the bottom of the outer edge of the car door and the corresponding position of the bottom of the car body. The door lock assembly can be obtained by using the prior art, and the specific structure is not described in detail herein.

[0050] The remaining structure of the car can be obtained by using the prior art, and the specific structure is not described in detail herein.

[0051] The above merely describes the preferred embodiments of the application and is not used to limit the application. The application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. An inward opening mechanism for a car door with a double-door structure, characterized in that, It includes an inward-opening handle, one end of which is fixedly connected to a rotating component, the other end of which is rotatably connected to a first rotating shaft provided in the housing and a first elastic element is provided between the rotating component and the housing, the rotating component is connected to a transmission mechanism, the transmission mechanism is connected to a swing arm, the middle part of the swing arm is rotatably connected to the housing and a second elastic element is provided between the swing arm and the housing, one end of the swing arm is connected to the bottom end of a first pull line, and the other end of the swing arm is connected to the top end of a second pull line; The rotation of the rotating component can drive the swing arm to rotate through the transmission mechanism, and the rotation of the swing arm can apply tension to the first and second pull lines.

2. The inward opening mechanism for a car door with a double-door structure as described in claim 1, characterized in that, The transmission mechanism includes a transmission component, which is rotatably connected to the housing. The top end of the transmission component contacts the rotating component, and the bottom end is provided with a hook. The hook is connected to the lifting component, which is connected to the swing rod. A third elastic element is provided between the lifting component and the housing.

3. The inward opening mechanism for a car door with a double-door structure as described in claim 2, characterized in that, The transmission component adopts a V-shaped structure. At the corner of the transmission component, it is rotatably connected to the housing via a second rotating shaft. One end of the transmission component is in contact with the rotating component, and the other end of the transmission component is provided with a hook. The hook is connected to the hanging rod provided on the top of the lifting component.

4. The inward opening mechanism for a car door with a double-door structure as described in claim 3, characterized in that, The hanging rod has a first spherical structure, and the hanging rod is connected to the hook through the first spherical structure.

5. The inward opening mechanism for a double-door structure as described in claim 2, characterized in that, The end of the transmission component that contacts the rotating component is provided with a second spherical structure, and the transmission component contacts the rotating component through the second spherical structure.

6. The inward opening mechanism for a car door structure as described in claim 2, characterized in that, The third elastic element is a third spring, with one end of the third spring connected to the lifting element and the other end connected to the housing.

7. The inward opening mechanism for a car door with a double-door structure as described in claim 2, characterized in that, The lifting member has an opening, and a drive column is provided at the non-end eccentric position of the swing rod. The drive column extends into the opening of the lifting member, and the lifting member can drive the swing rod to rotate through the cooperation of the opening and the drive column.

8. The inward opening mechanism for a car door with a double-door structure as described in claim 1, characterized in that, The first elastic element is a first torsion spring disposed between the rotating element and the first rotating shaft.

9. The inward opening mechanism for a car door with a double-door structure as described in claim 1, characterized in that, The middle part of the swing arm is rotatably connected to the housing via a third rotating shaft, and the second elastic element is a second torsion spring disposed between the swing arm and the third rotating shaft.

10. A type of automobile, specifically a car with double doors, characterized in that: The vehicle is provided with an inward door opening mechanism for a double-door structure as described in any one of claims 1-9.