A concealed handle

Abstract

The application discloses a hidden handle, which comprises a base and a handle body attached to the base. The base is provided with an opening for the handle body to move between a closed position and an open position. The handle body is arranged to be actuated by a hand in the open position to pull a door. The base is further provided with a transmission assembly for driving the handle to act. The transmission assembly comprises a linear driver, a first connecting rod, one end of which is hinged to the rear of the handle body and the other end of which is linearly constrained to slide on the base, and an output end of the linear driver pressing the linear end of the first connecting rod, a second connecting rod, one end of which is hinged to the front of the handle body and the other end of which is linearly constrained to slide on the base, and a transmission rod, one end of which is connected to the linear end of the first connecting rod through a first pin shaft and the other end of which is connected to the linear end of the second connecting rod through a second pin shaft. The sliding directions of the first connecting rod, the second connecting rod and the transmission rod and their linear ends are parallel or close to parallel.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and specifically to a concealed handle. Background Technology

[0002] Currently, with the increasing integration of automotive electrification, hidden handles have been widely used in many models. When the vehicle is in motion, these handles can be retracted to the door surface and flush with the door, thereby reducing wind noise and wind resistance. When the vehicle is locked, the handle is also in the aforementioned hidden position, improving the overall aesthetics and technological feel of the vehicle.

[0003] This type of concealed door handle typically includes a handle base, a handle body that moves relative to the handle base, and a drive assembly that drives the handle body to move. The drive assembly enables the handle body to move between a concealed position and an open position. However, for some flat-out handle bodies, that is, the handle body moves to the open position in an attitude parallel to the door normal, in order to achieve this, it is necessary to set rotating arms at both ends of the handle body. The drive assembly drives the two rotating arms to rotate to achieve the flat-out opening of the handle body.

[0004] The drawbacks are that the current drive assembly has too many moving parts, which can easily cause the handle to jam during the opening process. Since the rotating arms all rotate on their own rotating shafts, it is difficult to arrange limiting and guiding structures within the limited space of the handle base. On the other hand, in order to achieve the cooperation between multiple rotating arms and transmission components, multiple interconnected rotating shafts need to be set between multiple rotating arms, which will further increase the vibration and noise of the handle and its transmission components during the opening and closing process. Especially for the closing process of the handle, the return action of the rotating arm is usually achieved by the torsion spring on its own rotating shaft. When the torsion spring is working normally, the rotating arm returns quickly after losing the braking force of the actuator. At least when it is about to reach the closed position, the rotating arm and the attached handle are prone to collision noise after they are in place. This is because the above components rely entirely on the torsion spring to perform the reset force during the return, and the design of the drive assembly is unreasonable.

[0005] During the process of returning the handle body to its original position, the torsion spring usually acts on the rotating arm's own pivot, which is usually located at the top of the rotating arm. The rotating arm is supported only by its pivot. The positioning foot of the torsion spring is prone to fatigue, causing the rotating arm to vibrate. The above factors further increase the possibility of collision noise when returning to its original position or in place.

[0006] When a vehicle is involved in a collision, the internal rotating arm and its multiple hinged joints inevitably cause excessive rotation and movement of the internal components, forcing the handle to unlock or open, which further increases the damage to vehicle parts. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a concealed handle.

[0008] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a concealed handle, comprising a base and a handle body attached to the base, wherein the base is provided with an opening for the handle body to move between a closed position and an open position, and the handle body is configured to be actuated by a hand in the open position to pull the car door; the base is further provided with a transmission assembly for driving the handle movement, the transmission assembly comprising:

[0009] Linear drive, used to provide driving force;

[0010] The first link has one end hinged to the rear of the handle body and the other end linearly constrained to slide on the base, and the output end of the linear actuator applies pressure to the linear end of the first link.

[0011] The second link is hinged at one end to the front of the handle body, and the other end is linearly constrained to slide on the base.

[0012] The transmission rod has one end connected to the linear end of the first connecting rod via a first pin, and the other end connected to the linear end of the second connecting rod via a second pin.

[0013] The sliding directions of the first connecting rod, the second connecting rod, and the transmission rod and their linear ends are parallel or nearly parallel to each other.

[0014] Furthermore, it also includes a reset assembly comprising a reset unit that maintains the applied force toward the closed position, the reset unit applying a linear force to the linear end of the first or second link, and or, the reset unit applying pressure between the linear end and the hinged end of the first or second link with respect to the rotational closing direction.

[0015] Furthermore, the reset unit refers to a tension spring, which is parallel to the direction of operation of the linear actuator;

[0016] The reset unit refers to a reset rod equipped with a torsion spring. The reset rod has a mounting shaft end below the hinge end in the closed position and a reset action end connected near the hinge end. The torsion spring is disposed at the mounting shaft end, and the reset action end is biased near the hinge end.

[0017] Furthermore, the base is provided with a track for guiding and constraining the transmission component to slide linearly, and the base shell is provided with a slide for guiding the linear end of the transmission component to slide.

[0018] Furthermore, the component of the track located between the first link and the transmission rod is at least partially embedded within the rotating portion of the first link or the second link, and the component is provided with a guide surface that matches the contour trajectory of the rotating portion as it moves from the closed position to the open position.

[0019] Furthermore, the base includes a rigid upper seat and a lower seat that are spliced ​​together, as well as a soft sealing frame. The opening is formed at the upper seat, and the sealing frame is integrally formed around the opening. The upper seat and the sealing frame are configured to be injection molded in two colors.

[0020] Furthermore, the transmission rod is provided with a first inertia lock at the linear end corresponding to the first connecting rod, and / or, the transmission rod is provided with a second inertia lock at the linear end corresponding to the second connecting rod. The first inertia lock and the second inertia lock stop and prevent the movement within the corresponding linear end under the action of the collision force.

[0021] Furthermore, during the process of moving the handle from the open position to the closed position, the output end of the linear actuator is always connected to the back of the end of the transmission rod corresponding to the first pin.

[0022] Furthermore, the first inertial lock includes:

[0023] The first rotary seat has a clearance groove that keeps it in contact with the linear end under normal conditions;

[0024] The stop portion is formed on the first rotary seat and stops within the linear end's motion trajectory under the action of the collision force.

[0025] Furthermore, the stop portion is provided with a limiting edge, and the base is provided with a locking engagement block. The stop portion rotates under the action of the collision force, and the limiting edge abuts against the locking engagement block, keeping the stop portion within the movement trajectory of the linear end.

[0026] Furthermore, the first inertial lock also includes a locking block and a locking engagement block formed on the base. The locking block is movably disposed in the stop portion by an elastic element, and the locking block is provided with a locking groove. The locking groove and the locking engagement block are engaged with each other under the action of collision force, and stop the linear end from moving.

[0027] Furthermore, the second inertial lock includes a second rotating base, which has a guide groove that matches the movement trajectory of the linear end. The guide groove has a first locking groove, which is configured to engage with the linear end under the action of a collision force to stop the movement of the linear end.

[0028] Furthermore, the base is provided with an attachment groove that matches the contour of the first slot. The attachment groove is configured to receive the linear end that is disengaged from the linear opening direction under the action of an impact force, and the groove depth of the attachment groove is greater than that of the first slot. The second rotating seat normally covers part of the groove opening of the attachment groove.

[0029] Furthermore, the guide groove is provided with a second slot in the direction of travel of the linear end, and a guide protrusion opposite to the second slot. The second slot is configured to rotate toward the linear end under the action of the collision force, and the linear end rotates toward the second slot under the action of the guide protrusion.

[0030] Furthermore, the base is provided with a third rotating seat actuated by the handle body, and a pull cable for driving the handle body to unlock is connected to the third rotating seat. The third rotating seat is configured to be driven to rotate by the linear movement of the first pin.

[0031] Furthermore, a third inertial lock is provided on one side of the base corresponding to the third rotating seat. The third inertial lock is perpendicular to the rotation axis of the third rotating seat, and the third inertial lock is configured to stop within the opening trajectory of the third rotating seat under the action of collision force.

[0032] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0033] 1. The present invention sets the first link and the second link, as well as the transmission rod attached to the first link and the second link, to a linear movement mode for opening and returning actions. During the opening and returning actions, the first pin and the second pin are both constrained in the sliding groove of the base, thereby providing guidance for the movement of the transmission assembly, ensuring the positional stability of each component of the transmission assembly, and thus reducing the collision of the handle body when the action is in place.

[0034] 2. In this invention, the reset point of the first link is set as a tension spring. In the closed state, the tension spring is parallel to the first link and its linear movement direction to apply a stable reset force to the first link. At the same time, the reset force of the tension spring is further shared by the linear transmission rod and the second link to further ensure the stability and reliability of the return action. The reset point of the second link is indirectly acted on the rod body of the second link through a reset rod with a torsion spring at one end. As the trajectory of the second link and the reset rod changes, the second link always obtains a reset force perpendicular to the rod body at its midpoint, ensuring that the second link moves stably from the open position to the closed position, thereby avoiding collisions when the components of the transmission assembly are in place.

[0035] 3. In this invention, the mutual transmission between the first link, the second link and the transmission rod only requires the force-bearing axis and the action axis at their ends, thereby simplifying the components of the transmission assembly and the transmission relationship, and at the same time achieving stable transmission. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the transmission assembly and handle body of the present invention;

[0038] Figure 3 This is a side view of the transmission assembly and handle body of the present invention;

[0039] Figure 4 This is a top view of the transmission assembly and handle body of the present invention;

[0040] Figure 5 This is a side view of the transmission assembly and handle body of the present invention within the base;

[0041] Figure 6 This is a schematic diagram of the structure of the first inertial lock and the second inertial lock of the present invention on the base;

[0042] Figure 7 This is a schematic diagram of the third inertial lock of the present invention on the base;

[0043] Figure 8 This is a schematic diagram showing the fit between the first pin and the third rotating seat of the present invention;

[0044] Figure 9 This is a schematic diagram illustrating the cooperation between the third inertial lock and the third rotating base of the present invention;

[0045] Figure 10 This is a schematic diagram of another first locking state of the second inertial lock of the present invention;

[0046] Figure 11 This is a schematic diagram illustrating the operation of the first inertial lock of the present invention in the first locked state, the second locked state, and the unlocked state.

[0047] Figure 12 This is a schematic diagram illustrating the operation of the second inertial lock of the present invention in the first locking state, the second locking state, and the third locking state;

[0048] Figure 13 This is an exploded view of the base and sealing frame of the present invention;

[0049] Figure 14 This is a cross-sectional schematic diagram of the base and sealing frame of the present invention;

[0050] Figure 15 for Figure 14 Enlarged view of point A in the middle;

[0051] Figure 16This is a schematic diagram showing the arrangement of the base interior, handle body, and transmission assembly of the present invention.

[0052] Figure 17 This is a schematic diagram showing the cooperation between the support bar inside the base and the slot inside the first connecting rod of the present invention;

[0053] Figure 18 This is a cross-sectional view of the base, sealing frame, and transmission assembly of the present invention;

[0054] Figure 19 This is a cross-sectional view of the base, sealing frame, transmission assembly, and cover of the present invention.

[0055] Figure 20 for Figure 6 Enlarged view of point C in the middle;

[0056] Figure 21 for Figure 6 Enlarged view of point B in the middle;

[0057] In the diagram: 1. Base; 1.1. Track; 1.2. First slide rail; 1.3. Second slide rail; 1.4. Attachment groove; 1.5. Baffle; 1.6. Support part; 1.7. Frame space clearance; 1.8. Opening; 2. First connecting rod; 2.1. Slot; 2.2. Mating surface; 3. Second connecting rod; 4. Transmission rod; 5. First pin; 6. Second pin; 7. Tension spring; 8. Reset rod; 8.1. Mounting shaft end; 8.2. 9. Reset end; 10. Linear actuator; 11. Support bar; 12. Guide surface; 13. Upper seat; 14. Lower seat; 15. Positioning protrusion; 16. Protrusion; 17. First inertia lock; 18.1. First rotating seat; 19.2. Clearance groove; 10.3. Stop part; 10.4. Limiting edge; 10.5. Locking mating block; 10.6. Locking block; 10.7. Locking groove; 11. Second inertia lock; 10.1. First… 16.2 Second rotating seat; 16.3 First slot; 16.4 Second slot; 16.5 Guide protrusion; 17 Third inertia lock; 17.1 Fourth rotating seat; 17.2 Stop block; 18 Third rotating seat; 18.1 Pull cable connection part; 18.2 Stop mating block; 19 Handle body; 20 Sealing frame; 20.1 First part; 20.2 Second part; 20.3 Third part; 20.4 Upper supporting part; 20.5 Lower supporting part; 21 Door sheet metal; 22. Stop edge; 22.1 Connecting rib; 23. Forming platform; 23.1 Lower molded surface; 23.2 Upper molded surface; 23.3 Side molded surface; 24. Protective cover; 24.1 First closing edge; 24.2 Second closing edge; 24.3 Limiting step; 25. Limiting strip; 26. Plate-shaped main body; 27. Diagonal bar; 28. Buffer pad; Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0060] like Figure 1-21 As shown, a concealed handle includes a base 1 and a handle body 19 attached to the base 1. The base 1 has an opening 1.8 for the handle body 19 to move between a closed position and an open position. The handle body 19 is configured to be actuated by a hand in the open position to pull the door. The base 1 also has a transmission assembly for driving the handle's movement, the transmission assembly including:

[0061] Linear driver 9, used to provide driving force;

[0062] The first link 2 is hinged at one end to the rear of the handle body 19, and the other end is linearly constrained to slide on the base 1. The output end of the linear actuator 9 applies pressure to the linear end of the first link 2 or the transmission rod 4.

[0063] The second link 3 is hinged at one end to the front of the handle body 19, and the other end is linearly constrained to slide on the base 1.

[0064] The transmission rod 4 has one end connected to the linear end of the first connecting rod 2 via the first pin 5, and the other end connected to the linear end of the second connecting rod 3 via the second pin 6.

[0065] The sliding directions of the first connecting rod 2, the second connecting rod 3, and the transmission rod 4 and their linear ends are parallel or nearly parallel to each other. Preferably, the linear ends and the linear motion trajectory are all collinear. This arrangement allows the linear force of the linear actuator 9 to act quickly and effectively on the first pin 5 and the second pin 6, enabling the handle 19 to open rapidly.

[0066] It should be noted that the linear end can be the first pin 5 and the second pin 6 that make linear movements, or it can be the end of the first link 2, the second link 3 and the transmission rod 4 that make linear movements. The hinged end refers to the end of the first link 2 and the second link 3 that are hinged to the handle body 19.

[0067] In icy and snowy weather, the linear end of the transmission assembly always maintains linear engagement, making the transmission assembly present a quadrilateral that is translated and unfolded, which helps to increase the load at the hinge end and thus break through the covering of the handle body 19 and the door surface.

[0068] like Figures 2 to 5 As shown, both the first link 2 and the second link 3 have a planar plate-shaped body 26 and an upwardly inclined rod 27 connected to the end of the handle body 19. The linear end is formed at the end of the plate-shaped body 26 away from the inclined rod 27, and the hinged end is formed at the end of the inclined rod 27 that connects to the handle body 19. The plate-shaped body 26 occupies most of the volume, and the inclined rod 27 is connected to the end of the plate-shaped body 26. The pin that bears the driving force is set at the end of the plate-shaped body 26 away from the inclined rod 27, so that when the linear actuator 9 applies a linear driving force, the plate-shaped body 26 can apply sufficient resistance, so that the first pin 5 and the second pin 6 can stably perform linear movements. During the return process, the weight of the plate-shaped body 26 can also further assist the return movement and reduce the elastic fatigue of the reset assembly.

[0069] To further reduce the weight ratio of the inclined bar 27 and the plate-shaped body 26, the cross-sectional width of the inclined bar 27 is set to half the cross-sectional width of the plate-shaped body 26, and the projected length of the plate-shaped body 26 is greater than the length of the inclined bar 27.

[0070] The above improvements effectively increase the structural strength of the first link 2 and the second link 3, thereby reducing the swaying and abnormal noises generated during driving.

[0071] Based on the aforementioned plate-shaped main body 26, it is beneficial to design and plan the space for guiding the transmission assembly inside the base 1.

[0072] like Figure 3 and Figure 5 As shown, specifically, the base 1 housing is provided with a slide rail for guiding the linear end of the transmission assembly to slide. The slide rails are arranged linearly, with a first slide rail 1.2 corresponding to the first pin 5 and a second slide rail 1.3 corresponding to the second pin 6. During the opening and closing operations, the first pin 5 is constrained to move within the first slide rail 1.2, and the second pin 6 is constrained to move within the second slide rail 1.3, thereby ensuring the stability and reliability of the linear end operation of the transmission assembly.

[0073] like Figure 8 and Figure 16As shown, specifically, the base 1 is provided with a track 1.1 for guiding and constraining the transmission assembly to slide linearly. The track 1.1 is composed of two side baffles 1.5 set at the bottom of the base 1. The plate-shaped main body 26 of the first connecting rod 2 and the second connecting rod 3 is constrained between the two side baffles 1.5 to make linear movements, thereby reducing lateral sway during the movement. At the same time, thanks to the plate-shaped main body 26 which occupies a large area and weight, it is easier to further control the gap between the two side baffles 1.5 and the plate-shaped main body 26.

[0074] Optionally, the corresponding plate-shaped main body 26 and the front and rear ends of the transmission rod 4 are provided with portions extending toward the side baffles 1.5 to further compress the gap. Of course, the first connecting rod 2, the second connecting rod 3, and the transmission rod 4 can also be made of a self-lubricating material, so as to further conform to the side baffles 1.5 without affecting the smoothness of linear transmission. The aforementioned extended portions can be... Figure 2 The linear ends of the first link 2, the second link 3, and the transmission rod 4 are visible.

[0075] Furthermore, the transmission rod 4 can be disposed on one side or both sides of the first connecting rod 2 and the second connecting rod 3, and the ends of the transmission rod 4, the first connecting rod 2 and the second connecting rod 3 corresponding to the first pin 5 and the second pin 6 extend toward the side baffles 1.5.

[0076] In other embodiments, the stability of the transmission assembly operation is further improved by coordinating the transmission assembly with the base 1.

[0077] like Figure 16 and Figure 17 As shown, specifically, the track 1.1 is a component located between the first connecting rod 2 and the transmission rod 4. This component is at least partially embedded within the rotating portion of the first connecting rod 2 or the second connecting rod 3. This embedded component is preferably located at the first connecting rod 2, but it can also be located at the second connecting rod 3 depending on the spatial arrangement.

[0078] The component in question refers to the support bar 10 extending upward from the bottom of the base 1. The support bar 10 is arranged between the first connecting rod 2 and the transmission rod 4, and separates the inclined rod body 27 of the transmission rod 4 from the first connecting rod 2. Meanwhile, a slot 2.1 is provided on the plate-shaped body 26 of the first connecting rod 2. The slot 2.1 is inserted and engaged with the support bar 10, and the support bar 10 has a guide surface 10.1 facing the slot 2.1. The slot 2.1 on the rotating part of the first connecting rod 2 has a mating surface 2.2 that matches the guide surface 10.1. The contour trajectories of the two guide surfaces 10.1 from the closed position to the open position are matched.

[0079] from Figure 17As can be seen, both the mating surface 2.2 and the guide surface 10.1 are provided with two inclined and interconnected guide sections. The positions of the first link 2 corresponding to the opening degree of the handle body 19 are matched. That is, during the operation of the handle body 19, the mating surface 2.2 in the slot 2.1 and the guide surface 10.1 on the support bar 10 are always in a mating and guiding role. The mating surface 2.2 climbs or falls along the guide surface 10.1, thereby supporting the operation of the handle body 19 and the first link 2, avoiding the collision and noise caused by the instantaneous drop when the first link 2 is in operation, and further ensuring the reliability of the operation of the first link 2.

[0080] Optionally, the mating surface 2.2 and the guide surface 10.1 are also provided with guide sections corresponding to the handle body 19 being pulled by hand to further open, so as to guide and support the movement of the handle body 19 from the pulled position to the open position.

[0081] In other embodiments, to reduce collisions when the handle 19 returns to its original position, the first rod, the second rod, and the transmission rod 4 are held together by a retaining force, which is also provided by the first and second axle pins sliding on the base 1, so that the first rod, the second rod, and the transmission rod 4 are mounted above the bottom of the base 1, that is, a gap is formed between the moving member of the transmission assembly and the inner bottom of the base 1 to avoid collisions between them.

[0082] like Figure 8 and Figure 17 As shown, as an improvement, a support portion 1.6 can also be provided at the bottom of the base 1. This support portion 1.6 is used to maintain and limit the extreme return position of the transmission assembly. The support portion 1.6 is preferably provided corresponding to the linear end of the transmission assembly, so that when returning, the support portion 1.6 supports the portions of the first pin 5 and the second pin 6 of the row extending toward the ends on both sides. The extended portions of the corresponding pins perform linear movements in both opening and returning processes, thereby avoiding collisions during the fall and only linear alignment occurs, thus ensuring support while avoiding the generation of collision noise.

[0083] exist Figure 17 In the figure, the support part 1.6 on the left corresponds to the bottom of the linear end of the first link 2, and the support part 1.6 on the right corresponds to the bottom of the hinge end of the first link 2. Preferably, the inclined rod body 27 of the first link 2 and the support part 1.6 at its bottom are shown in dashed lines. Soft rubber can be provided at the first link 2 or the support part 1.6 to avoid collision noise.

[0084] As an improvement, to further optimize the problem of abnormal noise generated during driving, a gap of 1.7 can be formed between the transmission assembly and the bottom of the base 1 to avoid noise between the transmission assembly and the bottom of the base 1 during operation, and reduce frictional resistance, resulting in smoother operation.

[0085] Optionally, a soft rubber pad can be placed at the gap 1.7 of the frame to buffer the inevitable vibrations during driving and prevent collision noise between the transmission assembly and the base 1 while ensuring smooth sliding. This is also thanks to the large plate-shaped body 26, which increases the contact area and further prevents collision noise.

[0086] (Reset component)

[0087] like Figure 2 and Figure 3 As shown, in this embodiment, the linear actuator 9 preferably acts on the transmission rod 4. During the return process, the linear actuator 9 disengages from the transmission rod 4. It is desirable to set a reset component so that the transmission assembly can be reset to the closed position. At this time, preferably, the output end of the linear actuator 9 always abuts against the transmission rod 4 and applies a certain resistance force to the reset of the transmission assembly. Specifically, in the reset action of the first link 2, the part where the transmission rod 4 and the output end of the linear actuator 9 abut against each other prevents the transmission assembly from returning to the closed position too quickly.

[0088] During the process of moving the handle 19 from the open position to the closed position, the output end of the linear driver 9 is always connected to the back of the end of the transmission rod 4 corresponding to the first pin 5.

[0089] In other words, the return rate of the linear drive 9 is lower than the return rate fed back to the first link 2 by the transmission assembly, and thus, during the return process, the output end of the linear drive 9 always supports the transmission rod 4.

[0090] Preferably, a flexible buffer pad 28 is provided on the mating end of the transmission rod 4 and the linear driver 9.

[0091] The reset assembly includes a reset unit that maintains the applied force toward the closed position. The reset units are classified into Class I reset units and Class II reset units according to their position of action.

[0092] One type of reset unit is configured to apply a linear force to the linear end of the first link 2 or the second link 3.

[0093] Specifically, one type of reset unit refers to a tension spring 7, which is parallel to the direction of motion of the linear actuator 9, the first pin 5, or the second pin 6. The tension spring 7 has a fixed end, which is connected to the bottom of the base 1 by a hook. The tension spring 7 also has a free end, which is preferably connected to the first pin 5 or the second pin 6.

[0094] During the process of the handle body 19 moving from the closed position to the open position, the tension spring 7 always applies resistance opposite to the opening direction of the linear end, which helps to increase the load of the transmission assembly.

[0095] During the process of the handle body 19 returning from the open position to the closed position, the force of the tension spring 7 forces the linear end to slide back to the initial position. The arrangement direction and force direction of the tension spring 7 are always parallel to the sliding direction of the linear end, which improves the effective work of the tension spring 7. At the same time, the tension spring 7 is also parallel to the engagement position of the linear end of the transmission assembly, so that the force of the tension spring 7 is distributed to any linear end of the transmission assembly, making the force of the tension spring 7 uniform and stable, thereby realizing the stable and reliable return action of the transmission assembly.

[0096] Preferably, the tension spring 7 is connected to the middle of the first pin 5, and the first pin 5 connects the first connecting rod 2 and the linear end of the transmission rod 4. The other linear end of the transmission rod 4 is connected to the second connecting rod 3 through the second pin 6, ensuring the stability of the force on the transmission assembly.

[0097] The second type of reset unit applies pressure in the rotational closing direction between the linear end and the hinge end of the first link 2 or the second link 3.

[0098] Specifically, the second type of reset unit refers to a reset rod 8 equipped with a torsion spring. The reset rod 8 has a mounting shaft end 8.1 located below the hinge end in the closed position, and a reset action end 8.2 connected near the hinge end. The torsion spring is disposed on the mounting shaft end 8.1, and the reset action end 8.2 is located at the midpoint of the line connecting the linear end of the first link 2 or the second link 3 and the hinge end.

[0099] The second type of reset unit preferably acts on the second link 3.

[0100] Preferably, by controlling the length of the reset rod 8, the resetting end 8.2 applies a biasing force to the second link 3 on its plate-shaped body 26, and always acts perpendicular to the plate-shaped body 26, so as to ensure the reliability of the resetting action of the second link 3.

[0101] Preferably, the plate-shaped body 26 is provided with a load-bearing support that is axially engaged with the reset action end 8.2. The load-bearing support is set on the upper part of the plate-shaped body 26. This arrangement not only adapts to the space at the bottom of the base 1, but also facilitates the implementation of the reset action end 8.2 on the reset force in the vertical direction of the second connecting rod 3.

[0102] Alternatively, the reset end 8.2 may be biased near the hinge end. It should be noted that the reset end 8.2 is still constrained on the plate-shaped body 26. The purpose of this method is to apply a quick and smooth return to the second link 3.

[0103] It is worth mentioning that, in the closed position, the reset rod 8 and the second connecting rod 3 remain in a position parallel to each other, and the reset rod 8 and the transmission rod 4 occupy the same projection space inside the base 1, that is, the projections of the reset rod 8 and the transmission rod 4 in the linear direction coincide.

[0104] Furthermore, during the process of the handle body 19 returning from the open position to the closed position, thanks to the arrangement of the linear parallel transmission assembly and the reset rod 8, the reset force of the reset rod 8 on the second link 3 is also distributed to the first link 2 and the transmission rod 4, and the reset force of the tension spring on the first link is distributed to the second link 2 and the transmission rod 4, thereby ensuring the reliability of the reset action of the entire transmission assembly.

[0105] Furthermore, the reset force of the reset rod 8 is ultimately applied to the mating part between the first connecting rod 2 and the linear drive end.

[0106] (Base 1)

[0107] like Figures 13 to 16 ,as well as Figures 18 to 19 As shown, in this embodiment, it is desirable to further eliminate the collision contact between the handle body 19 and the opening 1.8 of the base 1 during the movement of the handle body 19, and to further increase the sealing and tightness of the handle assembly and the door sheet metal 21. To this end, the base 1 includes a rigid upper seat 11 and a lower seat 12 spliced ​​together, and a soft sealing frame 20. The opening 1.8 is formed at the upper seat 11, which at least partially covers the drive assembly for driving the handle body 19. The sealing frame 20 is integrally formed around the opening 1.8, and the upper seat 11 and the sealing frame 20 are set to be two-color injection molded. The handle base 1 presses against the door sheet metal 21 by the sealing frame 20, and the relative position between the handle base 1 and the door sheet metal 21 is adjusted by the tolerance adjustment component between the handle base 1 and the door sheet metal 21, such as a bolt that provides tension force, so as to adjust the positioning posture between the handle base 1 and the door sheet metal 21 by the soft sealing frame 20.

[0108] The upper seat 11 is part of the handle base 1, preferably occupying part of the opening 1.8, such as the upper half of the handle base 1. Therefore, the upper seat 11 covers the inner cavity of the handle base 1 and the internal drive assembly. The sealing frame 20 is formed as an integral part on the periphery of the opening 1.8 and the end face of the base 1. The purpose of making the upper seat 11 as an integral part is to facilitate the forming of the upper seat 11 and the sealing frame 20 on it, so as to reduce the steps of independently assembling the sealing frame 20, simplify the overall assembly process, and at the same time, ensure the airtightness between the door sheet metal 21, the sealing frame 20 and the handle base 1 in the assembled state.

[0109] As a further explanation of the sealing frame 20, the handle assembly abuts against the door sheet metal 21 via the sealing frame 20, and preferably the sealing frame 20 is configured to surround the periphery of the opening 1.8.

[0110] like Figure 14 and Figure 15 As shown, specifically, the sealing frame 20 extends inward or towards the handle body 19 in the closed position on at least one side of the opening 1.8. One purpose is to provide a certain seal between the handle body 19 and the opening 1.8, reducing the possibility of foreign objects entering the handle assembly. Another purpose is to increase the effective area of ​​the buffer, especially for the handle body 19 when it returns to the closed position. Through the extended portion of the sealing frame 20, direct collision between the handle body 19 and the base 1 can be avoided. At the same time, the contact between the handle body 19 and the sealing frame 20 reduces noise. For the handle body 19 during driving, the extended sealing frame 20 reduces the resonance noise between the handle body 19 and the opening 1.8.

[0111] Preferably, the wall thickness of the extended portion of the sealing frame 20 gradually decreases to facilitate contact with the handle body 19.

[0112] The sealing frame 20 includes a first part 20.1 and a second part 20.2. The first part 20.1 is formed on the end face of the upper seat 11 for abutting against the door sheet metal 21. The second part 20.2 is formed on the periphery of the opening 18 and extends toward the handle in the closed position. The second part 20.2 may also be a part extending toward the opening 18 with respect to its inner side. The first part 20.1 and the second part 20.2 are reliably formed on the upper seat 11 by their surfaces.

[0113] Of course, in some embodiments, depending on actual needs, the sealing frame 20 may include only the first part 20.1 or the second part 20.2 described above. In embodiments with the first part 20.1 and the second part 20.2, the two are integrally connected by a wall formed on the upper seat 11, that is, it also includes a third part 20.3, which connects the first part 20.1 and the second part 20.2 of the sealing frame 20.

[0114] As one embodiment of the sealing frame 20 formed on the upper seat 11, the opening 1.8 is recessed below the end face of the upper seat 11, and the upper seat 11 forms an end face above the opening 1.8. A forming platform 23 is formed on the periphery of the upper seat 11 corresponding to the opening 1.8. The forming platform 23 includes a lower forming surface 23.1 for defining the opening 1.8 and an upper forming surface 23.2 formed on the end face of the upper seat 11. The lower forming surface 23.1 extends inward about the upper forming surface 23.2. The sealing frame 20 can be selectively formed on the upper forming surface 23.2 and the lower forming surface 23.1.

[0115] The aforementioned sealing frame 20 has a first part 20.1, a second part 20.2, and a third part 20.3. The corresponding forming table 23 is provided with a side surface 23.3 that connects the upper forming surface 23.2 and the lower forming surface 23.1. The first part 20.1 is formed on the upper forming surface 23.2, the second part 20.2 is formed on the lower forming surface 23.1, and the third part 20.3 is formed on the side surface 23.3. Through the upper and lower parting forming table 23, the sealing frame 20 is reliably formed on the upper seat 11, ensuring the positional reliability of the sealing frame 20 and the sealing performance between it and the upper seat 11.

[0116] Preferably, the third part 20.3 and the side surface 23.3 are arranged in an inclined position and connect the first part 20.1 and the second part 20.2, the upper surface 23.2 and the lower surface 23.1, thereby increasing the forming area of ​​the sealing frame 20 on the upper seat 11 and improving the integration of the two.

[0117] Specifically, the top of the sealing frame 20 is provided with an upper receiving part 20.4, which is used to abut against the inner surface of the door sheet metal 21. The upper receiving part 20.4 is provided with an upper guide part for guiding the upper receiving part to deform under the compression of the door sheet metal 21. The upper guide part is groove-shaped. During the assembly process, the inner and outer contours of the groove can be tightly attached to the inside of the door sheet metal 21 as a double seal. During driving, the inner and outer contours of the groove can be allowed to expand under force, thereby forcing the bottom surface of the groove to further fit into the door sheet metal 21, thereby increasing the sealing and compactness of the sealing frame 20 and the door sheet metal 21. Of course, the user can also adjust the degree of deformation of the upper guide part by adjusting the tightness between the handle base 1 and the door sheet metal 21.

[0118] As a further embodiment of the upper guide portion, it has a larger wall thickness on the outer side of the contour and a smaller wall thickness on the inner side of the contour, which makes the sealing frame 20 more conducive to being guided to deform inward. The sealing frame 20 can maintain its position under the action of the upper profile 23.2, the lower profile 23.1 and the side profile 23.3. The sealing frame 20 can deform with its own wall thickness and further hug the handle body 19 under the guidance, thereby improving tightness and noise reduction during driving.

[0119] Of course, the upper guide part can also be other shapes that can guide deformation.

[0120] Alternatively, the cross-section of the upper receiving part 20.4 is a trapezoidal shape with a small top and a large bottom, thereby guiding the sealing frame 20 to expand and deform to the side.

[0121] Specifically, the upper support part 20.4 constitutes the first part 20.1.

[0122] In some other embodiments, a lower receiving portion 20.5 is provided between the sealing frame 20 and the upper seat 11. The lower receiving portion 20.5 has a concave-convex structure. The purpose of the lower receiving portion 20.5 is to improve the tightness of the fit between the sealing frame 20 and the upper seat 11. Preferably, it is set in the first part 20.1, corresponding to the bottom of the upper receiving portion 20.4, so as to adapt to and maintain the bottom position of the sealing frame 20 when it is deformed.

[0123] like Figures 14 to 15 , Figure 18 As shown, in some other embodiments, the upper seat 11 is provided with a stop edge 22 on at least one side of the opening 1.8. The stop edge 22 defines the boundary of the opening 1.8. The stop edge 22 has the same rigid material as the upper seat 11. The stop edge 22 is designed to provide a rigid edge for the handle body 19 to define a gap reference position with one side of the handle body 19.

[0124] Specifically, the stop edge 22 is set on one side of the opening 1.8 corresponding to the transmission rod 4, thereby covering the part of the transmission assembly exposed at the opening 1.8 on the basis of the shrinkage gap, and also playing a certain role in aesthetics and preventing foreign objects from entering.

[0125] Specifically, the stop edge 22 extends from the end of the third or first surface and is curved upwards to form a side edge that matches the side surface of the handle body 19. A connecting rib 22.1 is provided between the stop edge 22 and the upper seat 11 to ensure the structural strength and positional reliability of the stop edge 22.

[0126] like Figure 13 and Figure 16 As shown, specifically, it also includes a lower seat 12 connected to the bottom of the upper seat 11. The lower seat 12 supports the drive assembly, and the lower seat 12 is provided with a support strip 10 for supporting the stop edge 22. Through the above improvements, the stop edge 22 is supported in the height direction of the door by the connecting rib 22.1, and the support strip 10 supports the stop edge 22 in the normal direction of the door to ensure the structural strength of the stop edge 22.

[0127] In other embodiments, the support bar 10 is specifically supported on the arc-shaped side of the stop edge 22 away from the handle body 19, and the part of the upper seat 11 corresponding to the forming platform 23 is reserved with the outer boundary of the upper seat 11, forming a roughly bent connection, so as to guide the sealing frame 20 to be biased towards the handle body 19 when subjected to force, so that the handle body 19 contacts the sealing frame 20 and reduces noise.

[0128] Specifically, the lower seat 12 and the upper seat 11 are connected in the vertical direction by fastening and bolting. The lower seat 12 is far away from the handle body 19, so it can be made of metal with higher structural strength, or it can be made of the same material as the upper seat 11.

[0129] As a further explanation of the upper seat 11 and the sealing frame 20, the upper seat 11 and the sealing frame 20 are prepared by secondary molding in the mold. In the first molding, the upper seat 11 is formed, and glass fiber, which can be PP-GF30, is added to its injection molding material to increase the strength and rigidity of the upper seat 11. In the second molding, the molding core in the first molding is removed. The shape of the molding core is consistent with the shape of the sealing frame 20. Then, the sealing frame 20 is formed in the second molding. Its injection molding material can be thermoplastic vulcanizate (TPV).

[0130] In the above embodiment, the lower seat 12 is provided with a limiting strip 25 that is constrained on the inner side of the handle body 19. The limiting strip 25 is also supported on the inner side of the handle body 19 to constrain the position movement of the handle body 19 during the operation, thereby ensuring the gap between the handle body 19 and the opening 1.8, and thus avoiding the collision of the handle body 19.

[0131] Preferably, the component that contacts the handle body 19, such as the limiting strip 25, is integrally formed or covered with soft rubber to further reduce collision noise.

[0132] like Figure 19 As shown, in some other embodiments, the handle assembly also includes a cover 24 for covering the handle body 19, the cover 24 having a first closing edge 24.1 extending between the handle body 19 and the sealing frame 20, and a second closing edge 19.2 extending between the handle body 19 and the stop edge 22, wherein the outer side of the first closing edge 24.1 forms a limiting step 24.3 on the top of the sealing frame 20, and the outer side of the second closing edge 24.1 forms another limiting step 24.3 on the top of the stop edge 22.

[0133] The cover compensates for the gap between the handle body and the opening and sealing frame, ensuring the stability of the handle assembly during transportation and preventing positional displacement of the handle body and its internal transmission assembly during transportation and packaging. This is beneficial to the positional stability of the handle assembly after installation.

[0134] (Inertia Lock)

[0135] like Figure 6 and Figure 7As shown, in this embodiment, an inertial locking structure is provided for the first pin 5 and the second pin 6 that move linearly. Specifically, a first inertial lock 15 and a second inertial lock 16 are respectively provided on the linear ends of the transmission rod 4 corresponding to the first connecting rod 2 and the second connecting rod 3. The first inertial lock 15 and the second inertial lock 16 stop and prevent the movement within the corresponding linear end stroke under the action of the collision force.

[0136] It also includes a third inertial lock 17, which is used to stop in the event of a collision, thereby restricting the handle body 19 from performing an unlocking action.

[0137] The purpose of this arrangement is to set corresponding inertial locks for the opening action trajectory of the first pin 5 and the second pin 6 of the linear motion and the unlocking action trajectory of the handle body 19, so as to ensure the stability and reliability of any position when subjected to a collision.

[0138] It should be noted that, depending on the actual needs of the application, the first and second inertial locks 16 can be selectively applied to the first pin 5 and the second pin 6.

[0139] like Figure 20 and Figure 11 As shown, specifically, the first inertial lock 15 includes:

[0140] The first rotating seat 15.1 is arranged on the outside of the base 1 and located at the end of the first slide groove. It is provided with a torsion spring and a relief groove 15.2 that keeps in contact with the linear end when the handle body 19 is in the closed position. The torsion spring is used to keep the first inertial lock 15 from the first pin 5.

[0141] The stop portion 15.3 is formed on the first rotary seat 15.1 and is located away from the first slide groove. It is configured to stop within the movement trajectory of the linear end under the action of the collision force.

[0142] Preferably, the stop portion 15.3 is arc-shaped to create a stop when engaged with the first pin 5. The arc-shaped stop portion 15.3 further presses the first pin 5 under the linear force of the first pin 5.

[0143] Preferably, the first rotary seat 15.1 is also provided with a counterweight on the side opposite to the stop portion 15.3.

[0144] Under normal conditions, during the opening of the handle body 19, the first pin 5 moves linearly under the action of the linear actuator 9 and engages with the clearance groove 15.2 at the end of the first slide groove, thereby realizing the normal opening of the handle body 19.

[0145] like Figure 11As shown in the first state diagram, when subjected to a collision, the first rotating seat 15.1 rotates against the torsion spring on it under the action of the collision force, so that the stop part 15.3 appears in the linear sliding trajectory of the first pin 5 to prevent the opening action of the first connecting rod 2.

[0146] Therefore, by setting the stop portion 15.3, the first locking state is applied to the first pin 5.

[0147] Furthermore, a limiting edge 15.4 is provided on the stop part 15.3, and a locking engagement block 15.5 is formed on the base 1. The stop part 15.3 rotates under the action of the collision force, and the limiting edge 15.4 abuts against the locking engagement block 15.5, keeping the stop part 15.3 blocked within the movement trajectory of the linear end.

[0148] The limiting edge 15.4 is an inclined surface arranged at the bottom of the stop part 15.3, and the locking mating block 15.5 has an inclined surface arranged below the first slide groove. The two inclined surfaces cooperate and constrain the maximum rotation angle of the first rotating seat 15.1. The purpose is to prevent the first rotating seat 15.1 from rotating too much, causing the stop part 15.3 to deviate from the linear opening trajectory of the first pin 5.

[0149] Optionally, a protrusion 14 is provided on the base 1 corresponding to the counterweight on the first rotating seat 15.1, which is used to limit the rotation angle of the part of the first rotating seat 15.1 corresponding to the counterweight.

[0150] Specifically, the outer wall of the base 1 is also provided with a positioning protrusion 13 for supporting the stop part 15.3 in its normal state. In order to prevent collision noise generated during the process of the stop part 15.3 moving away from the positioning protrusion 13 and resetting during driving, a buffer pad 28 is provided on the side of the stop part 15.3 facing the positioning protrusion 13, and the buffer pad 28 is provided with a V-shaped groove on the side of the side of the buffer pad 28 facing the positioning protrusion 13, which is used to further expand when subjected to force, thereby increasing the buffering effect.

[0151] like Figure 11 As shown in the second state diagram, as a further improvement to the first inertial lock 15, based on the above embodiment, the first inertial lock 15 further includes a locking block 15.6 and a locking mating block 15.5 formed on the base 1. The locking block 15.6 is movably disposed in the stop portion 15.3 by an elastic member, and the locking block 15.6 is provided with a locking groove 15.7. The locking groove 15.7 and the locking mating block 15.5 are engaged with each other under the action of collision force, and stop the linear end action.

[0152] The locking block 15.6 is preferably made of an elastic material, and the elastic element refers to the spring that abuts against the inside of the locking block 15.6 and the stop portion 15.3.

[0153] Preferably, the stop portion 15.3 is further provided with a guide structure that cooperates with the locking block 15.6. Another function of the guide structure is to keep the locking block 15.6 within the stop portion 15.3. As an example, a guide shaft is inserted into the stop portion 15.3, and a groove matching its travel is provided in the locking block 15.6. As an example, a guide rib protruding towards the locking block 15.6 is provided inside the stop portion 15.3, and a corresponding guide groove is provided on the locking block 15.6. The direction of the guide rib and the guide groove is set as the moving direction of the locking block 15.6.

[0154] The locking block 15.6 is preferably irregularly shaped to improve the guiding fit inside the stop portion 15.3.

[0155] Based on the first inertial lock 15 mentioned above, the limiting edge 15.4 is set at the bottom of the locking block 15.6, and the locking block 15.6 can be received into the stop portion 15.3 by the linear force of the first pin 5, at which time the arc-shaped portion of the stop portion 15.3 can be exposed.

[0156] Under further impact, the stop part 15.3 rotates. At this time, the locking block 15.6 overcomes the force of the spring, causing the limiting edge 15.4 to disengage from the locking mating block 15.5. Then, the locking groove 15.7 is aligned with the locking mating block 15.5. Under the force of the spring, the locking groove 15.7 engages with the locking mating block 15.5. At this time, the first rotating seat 15.1 remains in its current position under the engaging action of the locking groove 15.7 and the locking mating block 15.5, so as to further block the linear opening action of the first pin 5.

[0157] To further improve the stopping effect of the locking block 15.6 on the first pin 5, the locking block 15.6 is provided with an arc surface above the locking groove 15.7 that matches the contour of the first pin 5.

[0158] like Figure 11As shown in the third state diagram, in one possible scenario, when the first pin 5 is stopped in the locking block 15.6 in the locked state, the handle body 19 is already in a partially open position. At this time, by applying an opening pulling force to the handle body 19, or under the action of the linear actuator 9, the first pin 5 further presses against the locking block 15.6. Through the cooperation with the upper arc surface of the locking block 15.6, the locking block 15.6 is further pressed and received into the stop portion 15.3. At this time, the locking groove 15.7 disengages from the locking engagement block 15.5, and then the handle body 19 is driven back to its normal position by the hand. The first rotation returns to its normal position under the action of its torsion spring, and the first pin 5 is returned to its initial position. After completing the above steps, the first pin 5 can run normally to the end of the first slide groove to implement the opening action of the handle body 19. It should be noted that this situation has already occurred after the collision.

[0159] Thus, by setting the locking block 15.6, a further second locking state is provided for the first pin 5.

[0160] like Figure 21 and Figure 12 As shown, for the second inertial lock 16, taking the second pin 6 as an example for further explanation, the second inertial lock 16 includes a second rotating seat 16.1. A torsion spring is provided on the rotating end of the second rotating seat 16.1. The second rotating seat 16.1 is provided with a guide groove 16.2 that matches the movement trajectory of the linear end. The torsion spring is used to drive the guide groove 16.2 on the second rotating seat 16.1 to match the second slide groove. During the normal opening process of the handle body 19, the second pin 6 can move to the end of the second slide groove through the further guidance of the guide groove 16.2.

[0161] like Figure 12 As shown in the first state diagram, the guide groove 16.2 is provided with a slot, specifically including a first slot 16.3. The first slot 16.3 is specifically located above the second slide groove. The first slot 16.3 is configured to engage with the second pin 6 under the action of the collision force. At this time, the second pin 6, as a component that moves due to the collision force, is forced to move upward and engage in the first slot 16.3 to stop the movement of the second pin 6 as the linear end.

[0162] Of course, the different directions of collision, such as Figure 20 As shown, the second rotating seat 16.1 can also be a component that moves due to the impact force. The rotation of the second rotating seat 16.1 forces the first slot 16.3 to actively engage with the second pin 6 to stop the movement of the second pin 6.

[0163] This provides a first locking state for the second pin 6.

[0164] like Figure 12As shown in the second state diagram, as a further improvement to the second inertial lock 16, the base 1 is provided with an attachment groove 1.4 that matches the contour of the first slot 16.3. The attachment groove 1.4 is connected and forms the upper part of the second slide groove. The attachment groove 1.4 is located from... Figure 5 As can be seen, when the impact is too great and the first slot 16.3 cannot effectively stop the second pin 6, the second pin 6 will deviate from the linear opening direction under the impact force. Moreover, the depth of the attachment groove 1.4 is greater than that of the first slot 16.3. Under normal conditions, the second rotating seat 16.1 partially obscures the opening of the attachment groove 1.4. The second pin 6 is forced to push the first slot 16.3 on the second rotating seat 16.1 until the second pin 6 enters the attachment groove 1.4, thereby locking the second pin 6 and further ensuring safety.

[0165] This provides a second locking state for the second pin 6.

[0166] like Figure 12 As shown in the third state diagram, as a further improvement to the second inertial lock 16, the slot also includes a second slot 16.4 located on the guide slot 16.2 and further provided with respect to the travel direction of the linear end. The second slot is located after the first slot, and there is a guide protrusion 16.5 opposite to the second slot 16.4. When the aforementioned first slot 16.3 and attachment slot 1.4 are insufficient to stop the second pin 6, the second pin 6 is forced to travel linearly, and the second rotating seat 16.1 rotates toward the second pin 6 under the action of the collision force, thereby further stopping the second pin 6.

[0167] To further ensure that the second slot 16.4 has a higher locking force than the first slot 16.3, the locking surface of the first slot 16.3 is set as an arc surface extending in the linear opening direction, while the locking surface of the second slot 16.4 is set as an arc surface extending away from the linear opening direction. This ensures that when the second slot 16.4 rotates downward, its locking surface is in a posture that hooks the second pin 6, thereby ensuring the locking force of the second slot 16.4.

[0168] This provides a third locking state for the second pin 6.

[0169] As a further explanation of the guide protrusion 16.5, the guide protrusion 16.5 is located at the bottom of the guide groove 16.2 and exposed in the second slide groove. The guide protrusion 16.5 has two opposing surfaces arranged sequentially with respect to the linear opening direction. The two opposing surfaces guide the second pin 6 upward and downward respectively. Under the action of the collision force, when the second pin 6 leaves the second locking state and moves linearly in the guide groove 16.2 and the second slide groove, the second pin 6 is stopped at the upward opposing surface of the guide protrusion 16.5. At this time, under the pressure of the second pin 6 on the guide protrusion 16.5 and the action of the collision force, the second rotating seat 16.1 rotates downward, thereby driving the second slot 16.4 to engage with the second pin 6.

[0170] Under normal conditions, the second rotary seat 16.1 rotates without being subjected to collision force, and the second pin 6 can press against and pass over the upward opposing surface of the guide protrusion 16.5, thereby continuing to slide in the second slide groove through the downward opposing surface of the guide protrusion 16.5.

[0171] It is worth mentioning that the second inertial lock 16 can stop the second pin 6 under impact forces in different directions. This technology is effective in locking the second pin 6 by rotating the second rotary seat 16.1 upward and downward. Specifically, when subjected to an upward impact force, the second rotary seat 16.1 and the second pin 6 move upward and are restricted in the direction of the attachment groove 1.4. When subjected to a downward impact force, the second rotary seat 16.1 and the second pin 6 move downward, and the first slot 16.3 or the second slot 16.4 moves downward and locks the second pin 6.

[0172] In addition, the second rotary seat 16.1 applies a force to the second pin 6 in the closed position through the torsion spring on it, thereby limiting the second pin 6 to the current position, and the force is distributed to the first link 2 and the transmission rod 4 through the second link 3, so as to avoid collision noise caused by driving without affecting the smooth opening action of the transmission assembly.

[0173] Furthermore, after the collision, the torsion spring on the second rotary seat 16.1 drives it back to its original position, so that the second pin 6 returns to the second slide groove and performs normal opening or retraction actions.

[0174] like Figures 7 to 9As shown, in the above embodiment, the base 1 is provided with a third rotating seat 18 actuated by the handle body 19. A pull wire connection part 18.1 is connected to the third rotating seat 18, and a pull wire for driving the handle body 19 to unlock is connected to the pull wire connection part 18. A torsion spring for resetting is also connected to the third rotating seat 18. The third rotating seat 18 extends into the base 1 and is exposed in the movement trajectory of the first pin 5. When the hand rotates the handle, or during the process of moving the handle body 19 to the open position, the first pin 5 can drive the third rotating seat 18 to rotate, thereby driving the unlocking pull wire to unlock.

[0175] The third inertia lock 17 is set on the base 1 on one side corresponding to the third rotating seat 18. The rotation axes of the third inertia lock 17 and the third rotating seat 18 are perpendicular to each other, and the third inertia lock 17 is set to stop within the opening trajectory of the third rotating seat 18 under the action of collision force.

[0176] Specifically, the third inertial lock 17 includes a fourth rotating seat 17.1 and a counterweight located on the side of the fourth rotating seat 17.1 opposite to the third rotating seat 18. A torsion spring for resetting is provided on the rotating shaft of the fourth rotating seat 17.1. A stop block 17.2 is provided on the side of the fourth rotating seat 17.1 near the third rotating seat 18. A stop engagement block 18.2 is provided on the third rotating seat 18. When the vehicle is subjected to a collision force, the stop block 17.2 rotates with the fourth rotating seat 17.1 into the opening rotation trajectory of the stop engagement block 18.2, thereby stopping the opening action of the third rotating seat 18 and preventing the door from being mistakenly locked.

[0177] Through the above improvements, the first inertia lock 15 stops the collision of the first pin 5, which is the linear end, the second inertia lock 16 stops the collision of the second pin 6, which is the linear end, and the third inertia lock 17 stops the collision of the third rotary seat 18, which is unlocked and opened. This fully protects the vehicle's positional stability when it is hit by a collision, as well as the impact of inertial forces on the internal components of the transmission assembly during driving.

[0178] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A concealed handle, comprising a base (1) and a handle body (19) attached to the base (1), wherein the base (1) has an opening (1.8) for the handle body (19) to move between a closed position and an open position, and the handle body (19) is configured to be actuated by a hand in the open position to pull a vehicle door, and the base (1) further comprises a transmission assembly for driving the handle movement, characterized in that, The transmission assembly includes: A linear driver (9) is used to provide driving force; The first link (2) is hinged at one end to the rear of the handle body (19) and the other end is linearly constrained to slide on the base (1), and the output end of the linear actuator (9) applies pressure to the linear end of the first link (2) or the transmission rod (4); The second link (3) is hinged at one end to the front of the handle body (19) and the other end is linearly constrained to slide on the base (1). The transmission rod (4) is connected at one end to the linear end of the first connecting rod (2) via the first pin (5), and at the other end to the linear end of the second connecting rod (3) via the second pin (6); The sliding directions of the first connecting rod (2), the second connecting rod (3) and the transmission rod (4) and their linear ends are parallel or nearly parallel to each other, and the base (1) is provided with a track (1.1) for guiding and constraining the transmission assembly to slide linearly, and the base (1) is provided with a slide for guiding the first pin (5) and the second pin (6) to slide.

2. The concealed handle as described in claim 1, characterized in that: It also includes a reset assembly comprising a reset unit that maintains force toward the closed position, the reset unit applying force linearly to a linear end, and or, the reset unit applying pressure between the linear end and the hinged end with respect to the rotational closing direction.

3. The concealed handle as described in claim 2, characterized in that: The reset unit refers to the tension spring (7), which is parallel to the direction of motion of the linear actuator (9); The reset unit refers to a reset rod (8) equipped with a torsion spring. The reset rod (8) has a mounting shaft end (8.1) below the hinge end in the closed position, and a reset action end (8.2) connected to the first link (2) or the second link (3). The torsion spring is disposed at the mounting shaft end (8.1), and the reset action end (8.2) applies a bias to the intermediate position between the linear end and the hinge end.

4. The concealed handle as described in claim 1, characterized in that: The track (1.1) has a component located between the first link (2) and the transmission rod (4), the component being at least partially embedded within the rotating portion of the first link (2) or the second link (3), and the component having a guide surface (10.1) that matches the contour trajectory of the rotating portion moving from the closed position to the open position and remains in mutual contact.

5. The concealed handle as described in claim 1, characterized in that: The base (1) includes a rigid upper seat (11) and a lower seat (12) that are spliced ​​together, and a soft sealing frame (20). The opening (1.8) is formed at the upper seat (11), and the sealing frame (20) is integrally formed around the opening (1.8). The upper seat (11) and the sealing frame (20) are configured to be two-color injection molded.

6. The concealed handle as described in claim 1, characterized in that: The transmission rod (4) is provided with a first inertia lock (15) at the linear end corresponding to the first pin, and / or, the transmission rod (4) is provided with a second inertia lock (16) at the linear end corresponding to the second pin. The first inertia lock (15) and the second inertia lock (16) stop and prevent the movement within the corresponding linear end under the action of the collision force.

7. The concealed handle as described in claim 6, characterized in that: The first inertial lock (15) includes: The first rotary seat (15.1) is provided with a clearance groove (15.2) that remains in contact with the linear end under normal conditions; The stop part (15.3) is formed on the first rotating seat (15.1) and stops within the movement trajectory of the linear end under the action of the collision force. The base (1) is provided with a locking engagement block (15.5). The stop part (15.3) rotates under the action of the collision force and abuts or locks with the locking engagement block (15.5), keeping the stop part (15.3) blocked within the movement trajectory of the linear end.

8. The concealed handle as described in claim 6, characterized in that: The second inertial lock (16) includes a second rotating seat (16.1), which has a guide groove (16.2) that matches the movement trajectory of the linear end. The guide groove (16.2) has at least one slot about the opening direction of the linear end. The second pin and the slot are configured to engage relative to each other under the action of a collision force to stop the movement of the linear end.

9. The concealed handle as described in claim 8, characterized in that: The base (1) is provided with an attachment groove (1.4) that matches the profile of the card slot, and the attachment groove is configured to allow the second pin to enter under the action of a collision force.

10. The concealed handle as described in claim 1, characterized in that: The base (1) is provided with a third rotating seat (18) actuated by a first pin. A pull cable for driving the handle body (19) to unlock is connected to the third rotating seat (18). The third rotating seat is configured to be driven to rotate by the linear movement of the first pin. A third inertial lock (17) is also provided on one side of the base (1) corresponding to the third rotating seat (18). The rotation axis of the third inertial lock (17) and the third rotating seat (18) are perpendicular to each other. The third inertial lock (17) is configured to stop within the opening trajectory of the third rotating seat (18) under the action of collision force.

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