A hidden door handle transmission structure and a door opening method

Abstract

The application discloses a hidden type vehicle door handle transmission structure and a vehicle door opening method. The hidden type vehicle door handle transmission structure comprises a door handle arranged in a door accommodating groove, a first rotating shaft, a second rotating shaft, a third rotating shaft and an unfolding and folding driving mechanism arranged on a door body; the door handle is rotatably arranged on the first rotating shaft and is provided with a pushing handle; the first pushing swing arm is rotatably arranged on the second rotating shaft; the second pushing swing arm is rotatably arranged on the third rotating shaft; the unfolding and folding driving mechanism adopts one of a mechanical telescopic mechanism and an electric telescopic mechanism, is used for driving the first pushing swing arm to rotate, drives the door handle to rotate to pre-open the door handle, then the hand pulls the door handle to continuously rotate to the outside, drives the second pushing swing arm to rotate, and then the vehicle door can be opened, and the shared transmission structure design of the mechanical and electric pre-opening door handle is realized.

Description

Technical Field

[0001] This invention relates to the field of vehicle door handle technology, specifically to a concealed vehicle door handle transmission structure and a vehicle door opening method. Background Technology

[0002] Car door handles are an important component of automobiles, serving both a functional and aesthetic purpose. They work in conjunction with door locks to form a complete door locking system. In recent years, with the increasing competition in the electric vehicle market and the growing demand for intelligent features, traditional door handles have been gradually replaced. To keep pace with automotive trends, existing models must be improved by introducing concealed door handles. This enhances the overall appeal of the vehicle and can also mitigate wind resistance and noise to some extent.

[0003] To meet the diverse needs of more users, vehicle design requires the simultaneous development and design of both mechanical and electric retractable handles for consumers to choose from. Currently, there are two types: mechanical and electric retractable handles. The mechanical type uses a push-to-open mechanism, while the electric type uses a motor-driven mechanism. Different styles employ different structural designs, resulting in a large workload for structural design and higher manufacturing costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a hidden door handle transmission structure and a door opening method. The hidden door handle transmission structure can easily switch between mechanical and electric pre-opening door handle methods, thereby reducing production costs.

[0005] To solve the above-mentioned technical problems, the present invention provides a concealed door handle transmission structure, including a door handle disposed in a door receiving groove, and a first rotating shaft, a second rotating shaft, a third rotating shaft and an extension / retraction drive mechanism disposed on the door body; the first rotating shaft is arranged vertically; the second rotating shaft and the third rotating shaft are both arranged laterally along the vehicle body and are spaced apart longitudinally along the vehicle body;

[0006] The door handle is rotatably mounted on the first pivot, and a push handle is provided on the side face near the door body;

[0007] A first push arm is rotatably mounted on the second rotating shaft. The first push arm slides against the push handle, so that the first push arm can rotate in conjunction with the door handle through the push handle.

[0008] A second push arm is rotatably mounted on the third rotating shaft. The second push arm is located on the side of the push handle away from the first push arm and is spaced a certain distance apart. When the door handle continues to open outward from the pre-open position, the second push arm slides into contact with the push handle, causing the second push arm to rotate in conjunction with the door handle through the push handle. The rotation of the second push arm can drive the lock body and thus open the car door.

[0009] The extension and retraction drive mechanism adopts one of a mechanical telescopic mechanism and an electric telescopic mechanism. The extension and retraction drive mechanism is used to drive the first push arm to rotate, and then drive the door handle to rotate through the push handle, so that the door handle is pre-opened.

[0010] In its normal state, the door handle is retracted and hidden in its receiving slot, i.e., the initial hidden position. The push handle and the first push arm maintain sliding contact, while the push handle and the second push arm are not in contact. When the door needs to be opened, the retraction drive mechanism is activated, driving the first push arm to rotate. This, in turn, drives the push handle to rotate, placing the door handle in a pre-open position with one end raised. In this invention, the rear end is raised, meaning the door handle is pre-opened when the rear end rotates outward from the initial hidden position by a first predetermined angle and remains in this position. During the pre-opening state, the push handle and both the first and second push arms maintain sliding contact. Then, the rear end of the door handle is pulled outward, rotating it outward by a second predetermined angle, which is greater than the first predetermined angle, fully opening the door. During this process, the push handle separates from the first push arm, while the push handle and the second push arm maintain sliding contact. The door handle and the second push arm rotate in tandem, thus enabling the door to be opened.

[0011] In the aforementioned concealed door handle transmission structure, the extension and retraction drive mechanism adopts either a mechanical telescopic mechanism or an electric telescopic mechanism. This achieves a shared design for the related transmission structures of the mechanical pre-opening door handle and the electric pre-opening door handle, solving the problem of large workload associated with separate design of mechanical and electric concealed handles, and saving on development and design costs and mold costs.

[0012] Furthermore, the output end of the mechanical telescopic mechanism can automatically pop out after being pressed, and can retract back to its original position after being pressed again after popping out; the output end of the mechanical telescopic mechanism is connected to the first push arm and is located on the side of the first push arm away from the push handle.

[0013] Preferably, the output end of the mechanical telescopic mechanism extends and retracts along the longitudinal direction of the vehicle body, thereby driving the first push arm to rotate around the second pivot.

[0014] Furthermore, the output end of the electric telescopic mechanism is connected to the first push arm and is driven by a motor to extend or retract in a straight line.

[0015] Preferably, the output end of the electric telescopic mechanism extends and retracts along the longitudinal direction of the vehicle body, thereby driving the first push arm to rotate around the second pivot.

[0016] Preferably, the electric telescopic mechanism is connected to the vehicle's central controller, allowing the vehicle to automatically control the door handle to pre-open according to system settings, enabling functions such as keyless entry and welcoming guests.

[0017] Furthermore, the concealed door handle transmission structure also includes a fourth pivot shaft on the door body, which is located on the side of the third pivot shaft away from the second pivot shaft; a central rocker arm is rotatably mounted on the fourth pivot shaft, one end of which is hinged to the lock body lever, and the other end of which is provided with a lock body unlocking swing arm; the other end of the central rocker arm is connected to the second push swing arm, so that the central rocker arm and the second push swing arm rotate in linkage.

[0018] Currently, all vehicles with non-concealed door handles use traditional handles paired with lever-type locks. Introducing concealed handles requires compatibility with existing lever-type locks. Most vehicles with popular concealed door handles use cable-operated locks, which transmit power approximately in the X-axis, while lever-type locks require power input approximately in the Z-axis. Therefore, to achieve a lower cost by incorporating a concealed door handle transmission structure into existing non-concealed door handles, the door handle structure needs to be redesigned and developed to allow the concealed handle to utilize readily available lever-type locks.

[0019] The concealed door handle transmission structure of this invention can convert the horizontal rotation of the door handle into the vertical movement of the lock body lever by pushing the handle, the second pushing swing arm and the central rocker arm, thereby meeting the travel requirements of the lock body unlocking swing arm and realizing the matching of the concealed handle and the lever-type lock body.

[0020] Preferably, the lock body unlocking arm is connected to the lock body assembly, which is used to lock the door to the vehicle body. The lock body lever moves with the rotation of the central rocker arm and can open the lock body assembly by driving the lock body unlocking arm, thus releasing the door lock.

[0021] Furthermore, an unlocking capacitive touch point is provided on the inner side of the door handle, which is used to trigger and control the unlocking arm of the lock body to be in a state that can be opened by the lock body lever; a locking capacitive touch point is provided on the outer side of the door handle, which is used to trigger and control the unlocking arm of the lock body to be in a state that cannot be opened by the lock body lever.

[0022] Preferably, both the unlocking capacitive touch point and the locking capacitive touch point are connected to the vehicle's central controller. Touching the unlocking capacitive touch point or the locking capacitive touch point on any door handle will synchronously switch the state of the unlocking arms of all doors.

[0023] Existing concealed handles typically use one or two touch capacitive buttons located on the outer surface of the door handle for locking and unlocking operations. For example, touching the unlocking capacitive button on the outer surface will put the lock body's unlocking arm in an openable state. Some may also pre-open the door handle simultaneously, which can lead to false locking. For instance, during a high-pressure car wash, the unlocking capacitor may be accidentally touched, causing malfunction and creating a safety hazard.

[0024] This invention avoids the risk of accidental unlocking by making the outer side of the door handle the locking capacitive touch point and the inner side of the handle the unlocking capacitive touch point. In addition, when entering without a key, the door can be unlocked by grasping the door handle, reducing the need for additional touching steps.

[0025] Furthermore, the central rocker arm is in the shape of a long strip plate, with its middle part rotatably mounted on the fourth rotating shaft, and one end having an elongated hole; an elliptical block is slidably mounted inside the elongated hole, and a fifth rotating shaft is rotatably mounted on the elliptical block, with the fifth rotating shaft fixed on the second push arm.

[0026] Furthermore, the second, third, and fourth rotating shafts are all fixed to the inner side of the bottom wall of the door receiving groove, and the bottom of the door receiving groove has a through hole through which the push handle passes.

[0027] Furthermore, both the second and third pivots are located directly opposite the front half of the main body of the door handle.

[0028] Preferably, the second pivot and the third pivot are arranged opposite each other along the longitudinal direction of the vehicle body, and the main body of the second push swing arm is located between the third pivot and the fourth pivot.

[0029] Furthermore, the fourth pivot is located directly opposite the rear half of the main body of the door handle.

[0030] Furthermore, the first push arm is a vertically arranged arc-shaped block, with its top end rotatably mounted on the second rotating shaft and its bottom end connected to the output end of the extension and retraction drive mechanism; the concave arc side of the first push arm slides against the push handle.

[0031] Furthermore, the output end of the extension and retraction drive mechanism is provided with an adapter block, which is used to connect the first push arm.

[0032] Preferably, the top surface of the adapter block has a through groove along the longitudinal direction of the vehicle body. The bottom surface of the groove gradually extends upward into a wedge-shaped surface at the end away from the push handle. The wedge-shaped surface slides and abuts against the bottom side of the first push arm. The bottom surface of the groove outside the wedge-shaped surface has a gap with the bottom end of the first push arm, so that the first push arm can be driven to rotate by moving the adapter block, thereby pre-opening the door handle.

[0033] By sliding and abutting the wedge-shaped surface against the first pushing arm, the first pushing arm can rotate under the push of the wedge-shaped surface while sliding up and down along the wedge-shaped surface, thus cleverly achieving the rotational linkage between the two.

[0034] Furthermore, the main body of the second push arm is fan-shaped and is centrally rotatably mounted on the third rotating shaft; a sliding groove is provided on one side of the second push arm; a sliding column is provided on the side of the push handle near the second push arm, and the sliding column is used to slide and abut against the sliding groove.

[0035] The fan-shaped plate design makes the working surface of the second push arm large, which can transmit the rotation of the push handle to the appropriate position, thereby driving the central rocker arm to move the lock body lever in an approximately vertical manner.

[0036] Furthermore, the first pivot is rotatably mounted on the front half of the main body of the door handle; the push handle is a long strip-shaped block arranged laterally along the vehicle and located at the bottom of the second pivot.

[0037] Furthermore, a first torsion spring is also provided on the second pivot to elastically resist the rotation of the door handle. Preferably, one end of the first torsion spring is fixed to the push handle, and the other end is fixed to the inner wall of the door receiving groove. The first torsion spring causes the door handle to retract and hide in the door receiving groove.

[0038] Furthermore, a second torsion spring is also provided on the third rotating shaft to elastically resist the rotation of the second push arm. Preferably, one end of the second torsion spring is fixed to the second push arm, and the other end is fixed to the inner wall of the door receiving groove.

[0039] Furthermore, the door handle is in the shape of a long strip, arranged longitudinally along the vehicle body, and is pre-opened when the rear end is raised.

[0040] This invention discloses a method for opening a car door based on the aforementioned concealed door handle transmission structure, wherein the rear end of the door handle is raised when the door handle is pre-opened, and when the extension / retraction drive mechanism adopts a mechanical telescopic mechanism, the method includes the following steps:

[0041] Step 1: Press the rear end of the door handle to make the push handle drive the first push arm to rotate, thereby pressing the mechanical telescopic mechanism;

[0042] Step 2: Release the rear end of the door handle, the output end of the mechanical telescopic mechanism extends, and through the transmission of the first push arm and the push handle, the rear end of the door handle is raised, thereby pre-opening the door handle;

[0043] Step 3: Insert your fingers between the door handle and the door receiving slot, and pull the back end of the door handle outward. By pushing the handle, the second push arm will rotate, thereby opening the door.

[0044] Step 4: Release the rear end of the door handle, the door handle will return to the door receiving groove, and the push handle will push the first push arm to rotate, and then press the mechanical telescopic mechanism again to reset the mechanical telescopic mechanism.

[0045] Furthermore, when the door handle is pre-opened, its tail end is raised. When the extension and retraction drive mechanism adopts the electric telescopic mechanism 62, the following steps are included: taking the door handle 1 in the initial hidden position as the starting state:

[0046] Step a: The electric telescopic mechanism 62 is activated, causing the output end of the electric telescopic mechanism 62 to extend. Through the transmission of the first push arm 31 and the push handle 11, the rear end of the door handle 1 is raised, thereby pre-opening the door handle 1.

[0047] Step b: Insert your finger between the door handle 1 and the door receiving slot, and pull the rear end of the door handle 1 outward. By pushing the handle 11, the second push arm 41 rotates, and then through the transmission of the central rocker arm 51, the lock body lever 71 opens the lock body unlocking arm 72, thereby opening the car door.

[0048] Step c: Release the rear end of door handle 1, and door handle 1 will return to the pre-open position;

[0049] Step d: The electric telescopic mechanism 62 is activated, causing the output end of the electric telescopic mechanism 62 to retract. At the same time, under the restoring force of the first torsion spring 32 and the second torsion spring 42, the door handle 1 is reset to the door receiving groove, that is, reset to the initial hidden position.

[0050] In summary, the adoption of this concealed door handle transmission structure and door opening method has the following beneficial effects:

[0051] ① Without changing the structure of the lever-type lock body, the hidden handle itself is matched, and this structural design can fit with any other lever-type lock body, reducing the risk of lock body changes and thus reducing development costs;

[0052] ② The power transmission path for the door handle to continue opening after pre-opening is consistent for both mechanical and electric types. This solves the problem of needing to change the door handle movement structure for the two pre-opening methods during matching with the lever-type lock body. It shares multiple parts and avoids another round of verification for matching with the lock body due to changes. Under the condition of taking into account both mechanical and electric, the cost is greatly reduced.

[0053] ③ The structure is ingeniously designed, with a high degree of matching between various transmission mechanisms. Throughout the entire motion process, each moving part is in the most comfortable state, resulting in strong stability.

[0054] ④ The capacitive touch structure design avoids the risk of accidental unlocking from a structural perspective. In addition, when entering without a key, the door can also be unlocked by gripping the handle, reducing the need for additional touches on the capacitor and better meeting the user's convenience requirements. Attached Figure Description

[0055] In the attached diagram:

[0056] Figure 1 This is a structural diagram of the electric telescopic mechanism used in the hidden door handle transmission structure of the present invention.

[0057] Figure 2 This is a structural diagram of the mechanical telescopic mechanism used in the hidden door handle transmission structure of the present invention.

[0058] Figure 3 This is a schematic diagram of the housing structure of the concealed door handle transmission structure of the present invention.

[0059] Figure 4 This is a schematic diagram of the door handle in the initial hidden position of the concealed door handle transmission structure of the present invention.

[0060] Figure 5 This is a schematic diagram of the pre-opening of the door handle in the concealed door handle transmission structure of the present invention.

[0061] Figure 6 This is a schematic diagram of the door handle unlocking lock body unlocking swing arm of the concealed car door handle transmission structure of the present invention.

[0062] Figure 7 This is a cross-sectional schematic diagram of the adapter block for the concealed door handle transmission structure of the present invention.

[0063] Figure 8 This is a schematic diagram of the inner side of the door handle of the concealed door handle transmission structure of the present invention.

[0064] Figure 9 This is a schematic diagram of the outer side of the door handle of the concealed door handle transmission structure of the present invention.

[0065] Figure 10This is a structural diagram of the hidden door handle transmission structure of the present invention.

[0066] Figure 11 This is a structural diagram of the first push swing arm of the concealed door handle transmission structure of the present invention.

[0067] Figure 12 This is a structural diagram of the adapter block for the concealed door handle transmission structure of the present invention.

[0068] Figure 13 This is a structural diagram of the second push swing arm of the concealed door handle transmission structure of the present invention.

[0069] Explanation of reference numerals in the attached drawings: 1. Door handle; 11. Push handle; 111. Sliding column; 12. Unlocking capacitive touch point; 13. Locking capacitive touch point; 2. First pivot; 3. Second pivot; 31. First push arm; 32. First torsion spring; 4. Third pivot; 41. Second push arm; 411. Slide groove; 42. Second torsion spring; 5. Fourth pivot; 51. Central rocker arm; 511. Oblong hole; 52. Elliptical block; 60. Adaptor block; 601. Groove; 602. Wedge-shaped surface; 61. Mechanical telescopic mechanism; 62. Electric telescopic mechanism; 71. Lock body lever; 72. Lock body unlocking arm; 8. Housing structure. Detailed Implementation

[0070] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions of the embodiments are for the purpose of helping to understand the present invention, but do not constitute a limitation thereof.

[0071] Figure 1-13 This invention illustrates a concealed door handle transmission structure. For example... Figure 1 and Figure 2 As shown, the concealed door handle transmission structure includes a door handle 1 located in the door receiving groove, and a first rotating shaft 2, a second rotating shaft 3, a third rotating shaft 4, a fourth rotating shaft 5, and an extension / retraction drive mechanism located on the door body; the first rotating shaft 2 is arranged vertically; the second rotating shaft 3, the third rotating shaft 4, and the fourth rotating shaft 5 are all arranged laterally along the vehicle body and are arranged at intervals along the longitudinal direction of the vehicle body.

[0072] like Figure 1 , Figure 2 and Figure 10 As shown, the door handle 1 is rotatably mounted on the first pivot 2, and a push handle 11 is provided on the side surface near the door body. Optionally, the door handle 1 is in the shape of a long strip, arranged longitudinally along the vehicle body, and is pre-opened when the rear end is raised.

[0073] The door handle 1 can rotate around the first pivot 2. The rotation includes the rear end rotating outwards from the door and the rear end rotating inwards from the door. Of course, the rotation angle outwards is greater than that inwards. Here, the rear end is relative to the front and rear directions of the vehicle body.

[0074] Optionally, the first pivot 2 is rotatably mounted on the front half of the main body of the door handle 1; the push handle 11 is a long strip block arranged laterally along the vehicle and is located at the bottom of the second pivot 3.

[0075] Optionally, the second rotating shaft 3, the third rotating shaft 4, and the fourth rotating shaft 5 are all fixed to the inner side of the bottom wall of the door receiving groove, and a through hole is opened on the bottom of the door receiving groove for the push handle 11 to pass through. Figure 3 As shown, a housing structure 8 is typically provided on the door structure. The outer side of the housing structure 8 forms a door receiving groove, and the inner side is used to fix and install components such as the second rotating shaft 3, the third rotating shaft 4, the fourth rotating shaft 5, and the extension and retraction drive mechanism. In addition, at the door receiving groove, the two ends of the first rotating shaft 2 are fixed to the housing structure 8, and the middle part is rotatably connected to the door handle 1.

[0076] like Figure 1 and Figure 2 As shown, a first push arm 31 is rotatably mounted on the second rotating shaft 3. The first push arm 31 slides and abuts against the push handle 11, so that the first push arm 31 can rotate in conjunction with the door handle 1 through the push handle 11.

[0077] The rotational linkage here is the main transmission mechanism used to pre-open the door handle 1. Specifically, it means that during the rotation of the first push arm 31, pushing the handle 11 can drive the door handle 1 to rotate. For example... Figure 1 As shown, when the first push arm 31 rotates clockwise, the tail end of the push handle 11 will tilt outwards. This transmission process is used in both the mechanical telescopic mechanism 61 and the electric telescopic mechanism 62 to pre-open the door handle 1. A schematic diagram of the pre-opening of the door handle 1 is shown below. Figure 5 As shown.

[0078] Conversely, the rotation of the door handle 1 can also drive the first push arm 31 to rotate. For example, when the end of the door handle 1 is pressed inward, the push handle 11 will push the first push arm 31 to rotate counterclockwise. This transmission process is used only when the mechanical telescopic mechanism 61 realizes the pre-opening of the door handle 1.

[0079] Optional, such as Figure 11As shown, the first push arm 31 is a vertically arranged arc-shaped block, with its top end rotatably mounted on the second rotating shaft 3 and its bottom end engaging with the output end of the extension / retraction drive mechanism; the concave arc side of the first push arm 31 slides against the push handle 11. The structure is ingeniously designed, ensuring reliable and smooth transmission. Furthermore, the concave arc side of the first push arm 31 has a certain planar area that slides against the side planar area of ​​the push handle 11, thus satisfying the requirement for coordinated rotation between the two.

[0080] Optionally, the second pivot 3 is located directly opposite the front half of the main body of the door handle 1, which facilitates the arrangement of the various component positions and structures.

[0081] like Figure 1 and Figure 2 As shown, a first torsion spring 32 is also provided on the second rotating shaft 3 to elastically resist the rotation of the door handle 1. The first torsion spring 32 is used to elastically keep the door handle 1 in the initial hidden position, that is, to provide a restoring force when the door handle 1 rotates away from the initial hidden position. The initial hidden position refers to the position where the door handle 1 is retracted and hidden in the receiving groove, such as... Figure 4 As shown.

[0082] Optionally, one end of the first torsion spring 32 is fixed to the push handle 11, and the other end is fixed to the inner wall of the door receiving groove. The first torsion spring 32 causes the door handle 1 to retract and hide in the door receiving groove.

[0083] like Figure 1 and Figure 2 As shown, a second push arm 41 is rotatably mounted on the third rotating shaft 4. The second push arm 41 is located on the side of the push handle 11 away from the first push arm 31 and is spaced a certain distance apart. When the door handle 1 continues to open outward from the pre-open position, the second push arm 41 slides into contact with the push handle 11, so that the second push arm 41 rotates in conjunction with the door handle 1 through the push handle 11. The rotation of the second push arm 41 can drive the lock body and thus open the car door.

[0084] The rotation linkage here is the main transmission mechanism used to enable the door handle 1 to open the lock body and unlock the swing arm 72. Specifically, it refers to the following: when the door handle 1 moves from the lock body to the unlocking arm 72... Figure 5 When the door handle 1 continues to open outward from the pre-open position, pushing the handle 11 will cause the second push arm 41 to rotate clockwise, and simultaneously drive the central rocker arm 51 and the lock body lever 71 to move, ultimately reaching the position shown. Figure 6 At the indicated position, the lock body is opened to unlock the swing arm 72. This transmission process is used in both the mechanical telescopic mechanism 61 and the electric telescopic mechanism 62 to pre-open the door handle 1.

[0085] Conversely, door handle 1 is located at Figure 6After reaching the indicated position, the hand will release, causing the door handle 1 to reset and rotate under the action of the first torsion spring 32. This rotation will not drive the second push arm 41 to rotate. The second push arm 41 will then reset and rotate counterclockwise under the action of the second torsion spring 42, which will be discussed later. Furthermore, when using the mechanical telescopic mechanism 61, to ensure that the door handle 1 has a sufficiently large reset force to be able to press the mechanical telescopic mechanism 61 again, a torque design is typically used so that when the second push arm 41 resets and rotates, it can push the door handle 1 to reset via the push handle 11, thereby giving the door handle 1 a large reset force to ensure that the mechanical telescopic mechanism 61 can be pressed again to reset it.

[0086] in addition, Figure 4-6 The ends of the second rotating shaft 3 and the third rotating shaft 4 are provided with a cover plate for end protection.

[0087] Optionally, the main body of the second push arm 41 is fan-shaped, and its center is rotatably mounted on the third rotating shaft 4.

[0088] The fan-shaped plate design makes the working surface of the second push arm 41 large, which can transmit the rotation of the push handle 11 to the appropriate position, thereby driving the central rocker arm 51 to drive the lock body lever 71 to make an approximately vertical movement.

[0089] Optional, such as Figure 1 As shown, a groove 411 is provided on one side of the second push arm 41; a sliding column 111 is provided on the side of the push handle 11 near the second push arm 41, and the sliding column 111 is used to slide and abut against the groove 411.

[0090] The sliding column 111 is a columnar shape arranged longitudinally along the vehicle body, with a rounded end. It is located on the side of the push handle 11 away from the extension and retraction drive mechanism. Since the sliding column 111 also rotates around the first rotating shaft 2 during the rotation of the door handle 1, by designing the shape, depth and direction of the sliding groove 411, the transmission can be achieved only through the contact and abutment between the sliding column 111 and the sliding groove 411 when the push handle 11 and the second push swing arm 41 are rotated together.

[0091] Optional, such as Figure 13 As shown, the second push arm 41 is a fan-shaped plate with a certain thickness. A groove 411 is provided on the surface away from the door handle 1 and the end face facing the push handle 11. The groove 411 is inclined upward in the shape of a groove, with the bottom end away from the push handle 11 and the top end close to the push handle 11. The depth of the groove 411 gradually increases from bottom to top to allow the rotation of the slide column 111, but the depth is less than the length of the slide column 111. The groove 411 provides a track for the movement of the end of the slide column 111.

[0092] Optionally, both the second pivot 3 and the third pivot 4 are located directly opposite the front half of the main body of the door handle 1. The second pivot 3 and the third pivot 4 are arranged directly opposite each other along the longitudinal direction of the vehicle body, and the main body of the second push arm 41 is located between the third pivot 4 and the fourth pivot 5, making the spatial arrangement more reasonable.

[0093] like Figure 1 and Figure 2 As shown, a second torsion spring 42 is also provided on the third rotating shaft 4 to elastically resist the rotation of the second push arm 41. The second torsion spring 42 is used to elastically maintain the position of the second push arm 41, so that the second push arm 41 is in the position of not opening the lock body unlocking arm 72.

[0094] Optionally, one end of the second torsion spring 42 is fixed to the second push arm 41, and the other end is fixed to the inner wall of the door receiving slot.

[0095] like Figure 1 and Figure 2 As shown, a central rocker arm 51 is rotatably mounted on the fourth rotating shaft 5. One end of the central rocker arm 51 is hinged to the lock body lever 71, and the other end of the lock body lever 71 is equipped with a lock body unlocking swing arm 72. The other end of the central rocker arm 51 is connected to the second push swing arm 41, so that the central rocker arm 51 and the second push swing arm 41 rotate in linkage. The central rocker arm 51 is equivalent to a lever. When the second push swing arm 41 rotates clockwise with the door handle 1, it causes the lock body lever 71 to move almost vertically downward, opening the lock body unlocking swing arm 72.

[0096] Optional, such as Figure 1 As shown, the central rocker arm 51 is in the shape of a long strip plate, with its middle part rotatably mounted on the fourth rotating shaft 5, and one end having an elongated hole 511; an elliptical block 52 is slidably mounted inside the elongated hole 511, and a fifth rotating shaft is rotatably mounted on the elliptical block 52, which is fixed on the second push arm 41. The transmission structure is ingenious and stable.

[0097] Optionally, the fourth pivot 5 is located directly opposite the rear half of the main body of the door handle 1.

[0098] like Figure 1 and Figure 2 As shown, the extension and retraction drive mechanism adopts one of the mechanical telescopic mechanism 61 and the electric telescopic mechanism 62. The extension and retraction drive mechanism is used to drive the first push arm 31 to rotate, and then drive the door handle 1 to rotate against the torque of the first torsion spring 32 by pushing the handle 11, so that the door handle 1 is pre-opened.

[0099] Optional, such as Figure 1 and Figure 2 As shown, the output end of the extension and retraction drive mechanism is provided with an adapter block 60, which is used to connect the first push arm 31.

[0100] Optional, such as Figure 1 and Figure 7 In the first structure of the adapter block 60 shown, a through groove 601 is formed on the top surface of the adapter block 60 along the longitudinal direction of the vehicle body. The bottom surface of the groove 601 gradually extends upward into a wedge-shaped surface 602 at the end away from the push handle 11. The wedge-shaped surface 602 slides and abuts against the bottom side of the first push arm 31. A gap is provided between the bottom surface of the groove (excluding the wedge-shaped surface 602) and the bottom end of the first push arm 31, allowing the first push arm 31 to rotate by moving the adapter block 60, thereby pre-opening the door handle 1. The main body of the adapter block 60 is fixedly connected to the output end of the electric telescopic mechanism 62. Figure 12 The diagram shown is an overall structural diagram of adapter block 60.

[0101] Optionally, a groove is provided on the bottom surface of the groove other than the wedge-shaped surface 602 to provide more space for the rotational movement of the first push arm 31.

[0102] The wedge-shaped surface 602 slides against the first pushing arm 31, allowing the first pushing arm 31 to rotate under the push of the wedge-shaped surface 602 while simultaneously sliding up and down along the wedge-shaped surface 602, thus cleverly achieving transmission between the two. This structure of the adapter block 60 is mainly used in the electric telescopic mechanism 62.

[0103] Optional, such as Figure 2 As shown, the second structure of the adapter block 60 is a fixed connecting block, which is rotatably mounted on the output end of the mechanical telescopic mechanism 61 and fixedly connected to the bottom end of the first push arm 31. The output end of the mechanical telescopic mechanism 61 has a certain vertical floating allowance, so the output end of the mechanical telescopic mechanism 61 and the bottom end of the first push arm 31 may not adopt the first structure of the adapter block 60, but instead adopt a structure in which they are fixedly connected to each other.

[0104] Optionally, the output end of the mechanical telescopic mechanism 61 can automatically pop out after being pressed, and can retract back to its original position after being pressed again. The structural principle of the mechanical telescopic mechanism 61 is similar to that of the pressing mechanism of an automatic ballpoint pen. Initially, the output end of the mechanical telescopic mechanism 61 remains in its retracted initial position. Pressing the rear end of the door handle 1 causes the first push arm 31 to press the output end of the mechanical telescopic mechanism 61. Subsequently, during the reset process of the door handle 1, the output end of the mechanical telescopic mechanism 61 will pop out. When a person pulls the door handle 1 outward to open the car door, the door handle 1 resets and will press the output end of the mechanical telescopic mechanism 61 again to retract it back to its initial retracted position, ready for the next opening.

[0105] Optionally, the output ends of the mechanical telescopic mechanism 61 and the electric telescopic mechanism 62 are connected to the first push arm 31, and are both located on the side of the first push arm 31 away from the push handle 11.

[0106] Optionally, the output end of the mechanical telescopic mechanism 61 extends and retracts along the longitudinal direction of the vehicle body, thereby driving the first push arm 31 to rotate around the second rotating shaft 3.

[0107] Optionally, the output end of the electric telescopic mechanism 62 is connected to the first push arm 31 and is driven by a motor to extend or retract in a straight line.

[0108] Optionally, the output end of the electric telescopic mechanism 62 extends and retracts longitudinally along the vehicle body, thereby driving the first push arm 31 to rotate around the second pivot 3. The electric telescopic mechanism 62 is connected to the vehicle's central controller, and the vehicle can automatically control the door handle 1 to pre-open according to the system settings, realizing functions such as keyless entry and welcoming.

[0109] Optional, such as Figure 8 The diagram shown is of the front, i.e., the outside, of the door handle, and as shown... Figure 9 The diagram shown is of the back, i.e., the inner side, of the door handle. The inner side of the door handle 1 is provided with an unlocking capacitor touch point 12, which is used to trigger and control the unlocking swing arm 72 of the lock body to be in a state that can be opened by the lock body lever 71. The outer side of the door handle 1 is provided with a locking capacitor touch point 13, which is used to trigger and control the unlocking swing arm 72 of the lock body to be in a state that cannot be opened by the lock body lever 71.

[0110] Optionally, both the unlocking capacitive touch point 12 and the locking capacitive touch point 13 are connected to the vehicle's central controller. Touching the unlocking capacitive touch point 12 or the locking capacitive touch point 13 on any door handle 1 will synchronously switch the state of the unlocking arms 72 of all doors.

[0111] The door handle 1 has a locking capacitive touch point 13 on the outside and an unlocking capacitive touch point 12 on the inside. This structure avoids the risk of accidental unlocking. In addition, when entering without a key, the door can be unlocked by gripping the door handle 1, reducing the need for additional touch steps.

[0112] When in use, if the extension and retraction mechanism adopts a mechanical structure, that is, when the mechanical telescopic mechanism 61 is used, such as Figure 2 As shown, the mechanical telescopic mechanism 61 can cooperate with the push handle 11. When the door handle 1 is in the initial hidden position, pressing the rear end of the door handle 1 triggers the mechanical telescopic mechanism 61 to extend. During the extension process, the mechanical telescopic mechanism 61 can overcome the elastic resistance of the torsion spring and push the door handle 11 to rotate, ultimately causing the rear end of the door handle 1 to lift out of the door receiving groove, thereby placing the door handle 1 in the pre-open position. Figure 5As shown. The above process only requires pressing the rear end of door handle 1 once, and then releasing the pressure to pre-open door handle 1. Alternatively, the front end of door handle 1 can also be pressed to pre-open it. Then, continue pulling the rear end of door handle 1 outwards, as shown. Figure 6 As shown, the second push arm 41 receives the push force from the door handle 1 via the push handle 11, and drives the lock body lever 71 downward through the central rocker arm 51, thereby unlocking the lever-type door lock mechanism. Finally, when the user releases the door handle 1, the door handle 1 will return to its original position under the action of the first torsion spring 32 and the second torsion spring 42. Figure 4 The initial hidden position is shown, and during the reset process, the mechanical telescopic mechanism 61 will be pressed again to reset it as well.

[0113] When the extension and retraction mechanism adopts an electric structure, that is, when the electric telescopic mechanism 62 is used, such as Figure 1 As shown, the electric telescopic mechanism 62 is controlled by the vehicle's central controller and can be triggered in various ways to pre-open the door handle 1, such as remote key unlocking or entering the welcome area around the vehicle with the key. The specific pre-opening transmission process is as follows: the electric telescopic mechanism 62 receives the pre-opening control signal, extends its control output end a certain distance, drives the first push arm 31 to rotate, and then pushes the door handle 1 to rotate via the push handle 11, causing the tail end to lift up pre-open and remain in place. Alternatively, pressing the front end of the door handle 1 can also pre-open it. Then, the user continues to pull the rear end of the door handle 1 outwards, as... Figure 6 As shown, the second push arm 41 receives the push force from the door handle 1 via the push handle 11, and drives the lock body lever 71 downward through the central rocker arm 51, thereby unlocking the lever-type door lock mechanism. Finally, when the user releases the door handle 1, the door handle 1 will return to its original position under the action of the first torsion spring 32 and the second torsion spring 42. Figure 5 The door handle 1 will only return to the pre-opened position as shown. This is only after the electric telescopic mechanism 62 receives the retraction control signal and drives the output terminal to reset. Figure 4 The initial hiding position is shown. The scenario that triggers the retraction control signal can be designed as needed.

[0114] In summary, the transmission structures of the mechanical and electric drive methods are mostly the same, and they can share other components except for the mechanical telescopic mechanism 61 and the electric telescopic mechanism 62 themselves, as well as the adapter block 60. The design is ingenious and cost-effective.

[0115] The present invention provides a door opening method based on the above-mentioned hidden door handle transmission structure, wherein the rear end of the door handle 1 is raised when it is pre-opened, and a mechanical telescopic mechanism 61 is used. The method includes the following steps one to four, with the door handle 1 in the initial hidden position as the starting state.

[0116] Step 1: Press the rear end of the door handle 1 to push the first push arm 31, thereby pressing the mechanical telescopic mechanism 61.

[0117] Step 2: Release the rear end of the door handle 1. The output end of the mechanical telescopic mechanism 61 extends, and through the transmission of the first push arm 31 and the push handle 11, the rear end of the door handle 1 is tilted up, thereby pre-opening the door handle 1. Specifically, after being released, the door handle 1 first returns to its original position under the action of the first torsion spring 32 and the mechanical telescopic mechanism 61. Then, the output end of the mechanical telescopic mechanism 61 extends, and through the transmission of the first push arm 31 and the push handle 11, it overcomes the torque of the first torsion spring 32 to tilt the rear end of the door handle 1, thereby pre-opening the door handle 1.

[0118] Step 3: Insert your finger between the door handle 1 and the door receiving slot, and pull the rear end of the door handle 1 outward. By pushing the handle 11, the second push arm 41 rotates, and then through the transmission of the central rocker arm 51, the lock body lever 71 opens the lock body unlocking arm 72, thereby opening the car door.

[0119] Step 4: Release the rear end of door handle 1. Door handle 1 returns to the door receiving groove, and push handle 11 pushes the first push arm 31 to rotate. Then press the mechanical telescopic mechanism 61 again to reset the mechanical telescopic mechanism 61. Release the rear end of door handle 1. Under the restoring force of the first torsion spring 32 and the second torsion spring 42, door handle 1 returns to the door receiving groove, and press the mechanical telescopic mechanism 61 again to reset it.

[0120] For the electric telescopic mechanism 62, the following steps are included: with the door handle 1 in the initial hidden position as the starting state.

[0121] Step a: The electric telescopic mechanism 62 is activated, causing its output end to extend. Through the transmission of the first push arm 31 and the push handle 11, the rear end of the door handle 1 is raised, thereby pre-opening the door handle 1. The extension action of the electric telescopic mechanism 62 can be triggered by pressing the unlock button on the car key, entering the vehicle's welcome area with the car key, etc. The vehicle's central controller receives the signal and sends an action control command to the electric telescopic mechanism 62.

[0122] Step b: Insert your finger between the door handle 1 and the door receiving slot, and pull the rear end of the door handle 1 outward. By pushing the handle 11, the second push arm 41 rotates, and then through the transmission of the central rocker arm 51, the lock body lever 71 opens the lock body unlocking arm 72, thereby opening the car door.

[0123] Step c: Release the rear end of door handle 1, and door handle 1 will return to the pre-open position. Due to the obstruction of the output end of the electric telescopic mechanism 62, it cannot return to the initial hidden position.

[0124] Step d: The electric telescopic mechanism 62 actuates, causing its output end to retract. Simultaneously, under the restoring force of the first torsion spring 32 and the second torsion spring 42, the door handle 1 returns to its initial hidden position within the door receiving slot. The retraction of the electric telescopic mechanism 62 can be triggered by: pressing the lock button on the car key, exceeding 5 km / h in speed, or having the door handle extended for more than 20 seconds. The vehicle's central controller receives the signal and sends an action control command to the electric telescopic mechanism 62.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading the present invention, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

Claims

1. A concealed door handle transmission structure, characterized in that, It includes a door handle (1) located in the door receiving slot, and a first pivot (2), a second pivot (3), a third pivot (4) and an extension / retraction drive mechanism located on the door body; the first pivot (2) is arranged vertically; the second pivot (3) and the third pivot (4) are both arranged laterally along the vehicle body and are spaced apart longitudinally along the vehicle body; The door handle (1) is rotatably mounted on the first rotating shaft (2), and a push handle (11) is provided on the side surface near the main body of the door. A first push arm (31) is rotatably mounted on the second rotating shaft (3). The first push arm (31) slides and abuts against the push handle (11), so that the first push arm (31) can rotate and link with the door handle (1) through the push handle (11). A second push arm (41) is rotatably mounted on the third rotating shaft (4). The second push arm (41) is located on the side of the push handle (11) away from the first push arm (31) and is spaced a certain distance apart. When the door handle (1) continues to open outward from the pre-open position, the second push arm (41) slides and abuts against the push handle (11), so that the second push arm (41) rotates and links with the door handle (1) through the push handle (11). The rotation of the second push arm (41) can drive the lock body and thus open the car door. The extension and retraction drive mechanism adopts one of a mechanical telescopic mechanism (61) and an electric telescopic mechanism (62). The extension and retraction drive mechanism is used to drive the first push arm (31) to rotate, and then drive the door handle (1) to rotate through the push handle (11) so that the door handle (1) is pre-opened. The output end of the mechanical telescopic mechanism (61) extends and retracts along the longitudinal direction of the vehicle body, thereby driving the first push arm (31) to rotate around the second rotating shaft (3); The output end of the electric telescopic mechanism (62) moves longitudinally along the vehicle body, thereby driving the first push arm (31) to rotate around the second rotating shaft (3); The first push arm (31) is a vertically arranged arc-shaped block, with its top end rotatably mounted on the second rotating shaft (3) and its bottom end connected to the output end of the extension and retraction drive mechanism; the concave arc side of the first push arm (31) slides and abuts against the push handle (11); The output end of the extension and retraction drive mechanism is provided with an adapter block (60), which is used to connect the first push arm (31). The adapter block (60) has a through groove (601) on its top surface along the longitudinal direction of the vehicle body. The bottom surface of the groove (601) gradually extends upward into a wedge-shaped surface (602) at the end away from the push handle (11). The wedge-shaped surface (602) slides and abuts against the bottom side of the first push arm (31). The bottom surface of the groove outside the wedge-shaped surface (602) has a gap with the bottom end of the first push arm (31), so that by moving the adapter block (60), the first push arm (31) can be driven to rotate, thereby pre-opening the door handle (1). The main body of the second push arm (41) is fan-shaped and is centrally mounted on the third rotating shaft (4); a sliding groove (411) is provided on one side of the second push arm (41); a sliding column (111) is provided on the side of the push handle (11) near the second push arm (41), and the sliding column (111) is used to slide and abut against the sliding groove (411).

2. The concealed door handle transmission structure according to claim 1, characterized in that, It also includes a fourth pivot (5) on the main body of the door, the fourth pivot (5) being located on the side of the third pivot (4) away from the second pivot (3); a central rocker arm (51) is rotatably mounted on the fourth pivot (5), one end of the central rocker arm (51) being hinged to the lock body lever (71), and the other end of the lock body lever (71) being provided with a lock body unlocking swing arm (72); the other end of the central rocker arm (51) is connected to the second push swing arm (41), so that the central rocker arm (51) and the second push swing arm (41) rotate in linkage.

3. The concealed door handle transmission structure according to claim 2, characterized in that, The door handle (1) has an unlocking capacitive touch point (12) on its inner side. The unlocking capacitive touch point (12) is used to trigger and control the lock body unlocking swing arm (72) to be in a state that can be opened by the lock body lever (71). The door handle (1) has a locking capacitive touch point (13) on its outer side. The unlocking capacitive touch point (12) is used to trigger and control the lock body unlocking swing arm (72) to be in a state that cannot be opened by the lock body lever (71).

4. The concealed door handle transmission structure according to claim 2, characterized in that, The central rocker arm (51) is in the shape of a long strip plate, with the middle part rotatably mounted on the fourth rotating shaft (5), and one end is provided with an elongated hole (511); an elliptical block (52) is slidably mounted in the elongated hole (511), and a fifth rotating shaft is rotatably mounted on the elliptical block (52), and the fifth rotating shaft is fixed on the second push arm (41).

5. The concealed door handle transmission structure according to claim 1, characterized in that, The second pivot (3) is also provided with a first torsion spring (32) that elastically prevents the door handle (1) from rotating; the third pivot (4) is also provided with a second torsion spring (42) that elastically prevents the second push arm (41) from rotating.

6. A method for opening a car door based on the concealed door handle transmission structure described in claim 1, characterized in that, When the door handle (1) is pre-opened, its tail end is raised. When the extension and retraction drive mechanism adopts a mechanical telescopic mechanism (61), the following steps are included: Step 1: Press the rear end of the door handle (1) to make the push handle (11) push the first push arm (31) to rotate, and then press the mechanical telescopic mechanism (61). Step 2: Release the rear end of the door handle (1), the output end of the mechanical telescopic mechanism (61) extends out, and through the first push arm (31) and the push handle (11) transmission, the rear end of the door handle (1) is raised, thereby pre-opening the door handle (1). Step 3: Insert your fingers between the door handle (1) and the door receiving slot, and pull the rear end of the door handle (1) outward. By pushing the handle (11), the second push arm (41) will rotate, thereby opening the door. Step 4: Release the rear end of the door handle (1), the door handle (1) returns to the door receiving slot, and the push handle (11) pushes the first push arm (31) to rotate, and then press the mechanical telescopic mechanism (61) again to reset the mechanical telescopic mechanism (61).

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