Flat-out hidden outer handle, vehicle door and vehicle

Abstract

The invention discloses a flat-out type hidden outer handle, a vehicle door and a vehicle. The flat-out hidden outer handle comprises a base, a handle body and a handle body, wherein a containing cavity is formed in the base; the transmission assembly is arranged in the containing cavity, movably connected with the base and used for being in driving connection with the driving part; the handle is in transmission connection with the transmission assembly and seals the containing cavity, and when the driving piece drives the transmission assembly to reciprocate, the transmission assembly drives the handle to stretch out of or retract into the containing cavity; the first end of the control rod is rotatably connected with the base, and a first transmission part is arranged on the outer wall of the control rod; the damper is fixedly connected with the base, a second transmission part is arranged on the damper, an input shaft of the damper is connected with the second transmission part, and the second transmission part is in transmission connection with the first transmission part; the first end of the first reset piece is connected with the first end of the control rod, and the second end is connected with the base; and the guide piece is fixedly connected with the second end of the control rod and is in transmission connection with the transmission assembly. According to the invention, the rebound sound can be reduced, and the riding experience of customers is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle equipment, and in particular to a flat-out hidden exterior handle, a vehicle door and a vehicle. Background Art

[0002] When closed, the hidden exterior handle of a car can remain flush with the door, making the overall body of the car more concise, smooth and beautiful. Among them, the flat-out hidden exterior handle is a form of hidden exterior handle for cars. During the opening process, first, under the drive of the driver, the handle of the exterior handle is pushed out parallel to the door to the pre-open position with the help of the transmission assembly, and then one end of the handle is manually pulled to the fully open position to open the door. After opening the door, release the handle, the handle loses the applied external force, and automatically rebounds to the pre-open position, and then the driver works in reverse to retract the handle and keep it flush with the door again. In the process of the handle returning from the fully open position to the pre-open position and then returning from the pre-open position to the initial position, there is a rebound sound problem due to mechanical rebound, and there will be collisions between the components of the transmission assembly, resulting in impact sounds, which affect the customer's perception experience. Summary of the invention

[0003] In view of this, the present invention provides a flat-out hidden exterior handle, a vehicle door and a vehicle to solve the above technical problems.

[0004] The flat-out hidden external handle provided by the present invention comprises:

[0005] A base, wherein a receiving cavity is provided in the base;

[0006] A transmission assembly, the transmission assembly is disposed in the accommodating cavity, is movably connected to the base, and is used for driving connection with the driving member;

[0007] A handle, the handle is in driving connection with the transmission assembly and covers the accommodating cavity, and when the driving member drives the transmission assembly to reciprocate, the transmission assembly drives the handle to extend out of or retract into the accommodating cavity;

[0008] A control rod, a first end of which is rotatably connected to the base, and an outer wall of the control rod is provided with a first transmission member;

[0009] A damper, the damper is fixedly connected to the base, a second transmission member is provided on the damper, an input shaft of the damper is connected to the second transmission member, and the second transmission member is transmission-connected to the first transmission member;

[0010] a first restoring member, wherein a first end of the first restoring member is connected to a first end of the control rod, and a second end of the first restoring member is connected to the base;

[0011] A guide member is fixedly connected to the second end of the control rod and is transmission-connected to the transmission assembly.

[0012] Optionally, the first transmission member is configured as a sector tooth, the second transmission member is configured as a gear, the sector tooth is meshingly connected with the gear, and a rotation radius of the sector tooth is greater than a rotation radius of the gear.

[0013] Optionally, the ratio of the contact height between the gear and the sector tooth to the axial height of the sector tooth is 1:3-1:2.

[0014] Optionally, the flat-out hidden outer handle further comprises: a buffer member, the buffer member is fixedly connected to the base, and when the handle covers the accommodating cavity, the control rod abuts against the buffer member; and / or,

[0015] a sealing ring, the sealing ring being circumferentially connected to a side of the accommodating cavity facing the handle and having a clearance fit with the handle; and / or,

[0016] a sealing cover plate, the sealing cover plate being connected to the base and covering a side of the accommodating cavity facing away from the handle; and / or,

[0017] The base is provided with a drainage hole; and / or,

[0018] A limiting block is fixed on the handle; a limiting groove is arranged in the accommodating cavity, and when the handle is opened, the limiting block moves into the limiting groove.

[0019] Optionally, a guide rail matching the moving track of the guide member is arranged in the accommodating cavity, one end of the guide member facing away from the control rod is arranged in the guide rail, and the guide member is slidably connected to the guide rail.

[0020] Optionally, the control rod is arranged on the outer side wall of the base, the base is penetrated by a guide through hole matching the moving trajectory of the guide member, and the guide member passes through the guide through hole.

[0021] Optionally, a buffer block is provided on the inner wall of the guide through hole and / or the inner wall of the guide slide rail.

[0022] Optionally, the transmission assembly includes:

[0023] A front rotating arm, wherein a first end of the front rotating arm is rotatably connected to the base, and a second end of the front rotating arm is rotatably connected to the first end of the handle;

[0024] a second restoring member, wherein a first end of the second restoring member is connected to the first end of the front rotating arm, and a second end of the second restoring member is connected to the base;

[0025] A rear pull rod, wherein a first end of the rear pull rod is rotatably connected to the guide member, and a second end of the rear pull rod is rotatably connected to a second end of the handle;

[0026] A push rod is used to be drivingly connected to the driving member and reciprocate under the drive of the driving member. The front rotating arm and the rear pull rod are both located on the moving path of the push rod.

[0027] Optionally, a first position and a second position are provided on the front rotating arm, the first position is closer to the second end of the front rotating arm than the second position, and a third position is provided on the rear pull rod, and when the push rod moves under the drive of the driving member, the first position, the second position and the third position are respectively abutted against the push rod, and when the handle covers the accommodating cavity, the gap between the first position and the push rod is smaller than the gap between the second position and the push rod, and the gap between the second position and the push rod is smaller than the gap between the third position and the push rod.

[0028] Optionally, a buffer pad is fixed to the portion of the push rod abutting against the third position.

[0029] The present invention further provides a vehicle door, comprising any one of the above-mentioned flat-out hidden outer handles.

[0030] The present invention also provides a vehicle, comprising the vehicle door described above.

[0031] Compared with the prior art, the above technical solution provided by the present invention has at least the following beneficial effects:

[0032] The flat-out hidden outside handle, vehicle door and vehicle of the present invention are adopted, the first end of the first reset member is connected to the first end of the control rod, the control rod automatically returns to its original position under the drive of the first reset member, and the guide member is connected to the second end of the control rod. During the resetting process, the rotation of the control rod drives the guide member connected thereto to move in the opposite direction; the guide member is connected to the transmission assembly, and the transmission assembly is connected to the handle, so the guide member drives the handle to return to its original position. During the process of the handle returning from the fully open position to the pre-open position and then returning from the pre-open position to the initial position, by means of the cooperation between the second transmission member on the damper and the first transmission member on the outer wall of the control rod, the second transmission member is connected to the input shaft of the damper, and the force on the control rod is transmitted to the inside of the damper, so that the control rod rotates slowly, and then drives the guide member, the transmission assembly and the handle directly or indirectly connected thereto to move slowly, so that there is no violent collision between the components of the transmission assembly, but slow contact, and no excessively loud impact sound is generated, and the control rod, the guide member, the transmission assembly and the handle move slowly, and the rebound sound is reduced at the same time, which can improve the customer's riding experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of a flat-out hidden external handle according to an embodiment of the present invention;

[0034] Figure 2 for Figure 1 The schematic diagram of the internal structure of the flat-out hidden external handle shown;

[0035] Figure 3 for Figure 1 Another angle diagram of the flat-out hidden external handle shown;

[0036] Figure 4 for Figure 1 A cross-sectional view of the flat-out hidden exterior handle shown in the initial position;

[0037] Figure 5 for Figure 1 A cross-sectional view of the flat-out hidden exterior handle shown in the pre-opening position;

[0038] Figure 6 for Figure 1 A cross-sectional view of the flat-out hidden exterior handle shown in the fully open position;

[0039] Figure 7 for Figure 2 A schematic diagram of the connection relationship between the control rod of the flat-out hidden external handle and the rear pull rod is shown;

[0040] Figure 8 for Figure 2 The schematic diagram of the connection relationship between the control rod of the flat-out hidden external handle and the damper is shown;

[0041] Fig. 9 for Figure 2 A schematic diagram showing a state in which the control rod of the flat-out hidden outer handle abuts against the buffer member;

[0042] Fig.10 for Figure 2 A schematic diagram of the connection relationship between the shaft pin of the flat-out hidden external handle and the guide rail is shown;

[0043] Fig.11 for Figure 2 A top view of the base of the flat-out hidden exterior handle;

[0044] Fig.12 for Figure 2 A schematic diagram showing a shaft pin of a flat-out hidden external handle penetrating a guide through hole of a base;

[0045] Fig.13 for Figure 4 A schematic diagram of the clearance fit between the push rod of the flat-out hidden external handle and the front rotating arm and the rear pull rod in the initial position;

[0046] Fig.14 for Figure 1 A schematic diagram of arranging a limit block on the handle of a flat-out hidden external handle is shown;

[0047] Fig.15 for Figure 1 A schematic diagram showing the arrangement of the limit grooves in the base of the flat-out hidden external handle;

[0048] Fig.16 for Fig.14 The limit block in the Fig.15 Schematic diagram of the limit slot in .

[0049] Reference numerals:

[0050] 1: base; 101: guide through hole; 102: accommodating chamber; 100: transmission component; 2: front rotating arm; 201: first connecting arm; 202: second connecting arm; 3: control rod; 301: first transmission member; 302: slot; 303: connecting member; 304: connecting groove; 305: protrusion; 306: connecting hole; 4: damper; 5: first reset member; 6: guide member; 7: rear pull rod; 8: push rod; 9: handle; 10: second transmission member; 11: buffer member; 1101: protrusion; 12: guide slide rail; 13: buffer block; 14: buffer pad; 15: sealing ring; 1501: hard rubber; 1502: soft rubber; 16: sealing cover plate; 17: drainage hole; 18: limit block; 19: limit strip; 20: mounting member; 21: driving member; A: first position; B: second position; C: third position. DETAILED DESCRIPTION

[0051] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0052] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a variety of structural modes and implementation modes that can be replaced by those skilled in the art can be replaced with each other. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the invention.

[0053] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0054] Figure 1 It is a schematic diagram of a flat-out hidden external handle according to an embodiment of the present invention; Figure 2 for Figure 1 The schematic diagram of the internal structure of the flat-out hidden external handle shown; Figure 3 for Figure 1 Another angle diagram of the flat-out hidden external handle shown; Figure 4 for Figure 1 A cross-sectional view of the flat-out hidden exterior handle shown in the initial position; Figure 5 for Figure 1 A cross-sectional view of the flat-out hidden exterior handle shown in the pre-opening position; Figure 6 for Figure 1 A cross-sectional view of the flat-out hidden exterior handle shown in the fully open position; Figure 7 for Figure 2 A schematic diagram of the connection relationship between the control rod of the flat-out hidden external handle and the rear pull rod is shown; Figure 8 for Figure 2 The schematic diagram of the connection relationship between the control rod of the flat-out hidden outside handle and the damper is shown.

[0055] like Figure 1-Figure 8 As shown, the flat-out hidden external handle includes a base 1, a transmission assembly 100, a handle 9, a control rod 3, a damper 4, a first reset member 5 and a guide member 6.

[0056] A accommodating chamber 102 is provided in the base 1; a transmission assembly 100 is provided in the accommodating chamber 102, is movably connected to the base 1, and is used for being drivably connected to the driving member 21; the handle 9 is drivably connected to the transmission assembly 100 and covers the accommodating chamber 102, and when the driving member 21 drives the transmission assembly 100 to move back and forth, the transmission assembly 100 drives the handle 9 to extend or retract the accommodating chamber 102; the first end of the control rod 3 is rotatably connected to the base 1, and a first transmission member 301 is provided on the outer wall of the control rod 3; the damper 4 is fixedly connected to the base 1, and a second transmission member 10 is provided on the damper 4, the input shaft of the damper 4 is connected to the second transmission member 10, and the second transmission member 10 is drivably connected to the first transmission member 301; the first end of the first reset member 5 is connected to the first end of the control rod 3, and the second end of the first reset member 5 is connected to the base 1; the guide member 6 is fixedly connected to the second end of the control rod and is drivably connected to the transmission assembly 100.

[0057] In the initial position, the handle 9 is in a retracted state, flush with the door, and the transmission assembly 100 is in a retracted state. When the door needs to be opened, the drive member 21 is started, so that the drive member 21 drives the transmission assembly 100 to extend toward the handle 9, thereby driving the handle to move horizontally toward the outside of the vehicle body, pushing the handle 9 out, protruding and parallel to the plane where the door is located. At this time, the handle 9 is in the pre-opening position. During the movement of the handle from the initial position to the pre-opening position, the transmission assembly 100 simultaneously drives the guide member 6 to move along a preset trajectory, and the movement of the guide member 6 drives the control rod 3 connected thereto to rotate around its first end relative to the base 1, causing the first reset member 5 to deform. After the handle 9 is in the pre-open position, the second end of the handle 9 is manually pulled outward to rotate the handle 9 around its first end until it is in the fully open position, and the door lock outer pull wire connected to the second end of the control rod 3 is pulled to unlock the door. In this process, the handle drives the transmission assembly 100 to move accordingly, so that the transmission assembly 100 is further extended, and then the transmission assembly 100 drives the control rod 3 to continue to rotate around its first end through the guide member 6, and the first reset member 5 continues to deform. After the door is opened, the handle 9 is released. After the handle 9 loses the external force, under the elastic force generated by the deformation of the first reset member 5, the control rod 3 rotates in the opposite direction around its first end, thereby driving the guide member 6 connected thereto to move in the opposite direction along the preset track, and then driving the transmission assembly 100 connected to the guide member 6 to shrink in the opposite direction, and further driving the second end of the handle 9 connected to the transmission assembly 100 to move toward the base 1, and under the elastic force of the first reset member 5, the handle 9 is restored to the pre-open position flush with the door. After the handle 9 is restored to the pre-open position, the driving member 21 is started to make the driving member 21 move in the reverse direction. Then, under the joint action of the driving member 21 and the elastic force of the first reset member 5, the control rod 3 continues to rotate in the reverse direction around its first end, thereby driving the guide member 6 and the transmission assembly 100 directly or indirectly connected thereto to continue to move in the reverse direction, and finally the handle 9 is retracted parallel to the door, and the base 1 is re-covered to be flush with the door. In the process of the handle 9 returning from the fully open position to the pre-open position and from the pre-open position to the initial position, the first transmission member 301 rotates synchronously with the control rod 3, and realizes the connection with the input shaft of the damper 4 through the transmission connection with the second transmission member 10. The damper 4 can generate a return torque. Under the action of the damper 4, the control rod 3 rotates slowly, so that the guide member 6, the transmission assembly 100 and the handle 9 directly or indirectly connected thereto also move slowly, and no excessive rebound sound is generated.

[0058] By adopting the flat-out hidden external handle of the present invention, the control rod 3 automatically returns to its original position under the action of the first reset member 5, and drives the guide member 6 connected thereto to move in the opposite direction, thereby driving the handle 9 connected to the guide member 6 to return to its original position. In the process of the handle 9 returning from the fully open position to the pre-open position and then returning from the pre-open position to the initial position, the control rod 3 rotates slowly with the help of the cooperation between the second transmission member 10 on the damper 4 and the first transmission member 301 on the outer wall of the control rod 3, thereby driving the guide member 6, the transmission assembly 100 and the handle 9 directly or indirectly connected thereto to move slowly, so that there will be no violent collision between the components of the transmission assembly 100, but slow contact, and no excessively loud impact sound will be generated. In addition, the control rod 3, the guide member 6, the transmission assembly 100 and the handle 9 move slowly, and the rebound sound is reduced at the same time, which can improve the customer's riding experience.

[0059] In this embodiment, if Figure 2 As shown, the base 1 is a hollow cavity as a whole, and four mounting members 20 are connected to the outer wall circumferentially for connecting with the vehicle door. Figure 4-Figure 6 As shown, during the process of the handle 9 switching from the initial position to the pre-open position and then to the fully open position, the transmission assembly 100 continuously extends; and during the process of the handle returning from the fully open position to the initial position, the transmission assembly 100 continuously contracts in the reverse direction. Figure 8 As shown, the first end of the control rod 3 is rotatably connected to the base 1 by means of a hot riveting screw, and a connecting hole is provided at the second end for connecting the door lock outer pull wire. A first transmission member 301 is fixed on the outer wall of the control rod 3 near the first end. Within a set distance from the first transmission member 301, the damper 4 is fixedly connected to the base 1, and the input shaft of the damper 4 passes through its upper surface and is connected to the second transmission member 10. Figure 7 As shown, the guide member 6 is an axle pin, the upper end of which is fixedly connected to the second end of the control rod 3 to drive the second end of the control rod 3 to rotate around its first end. The transmission assembly 100 is sleeved with an axle pin and rotatably connected to the axle pin. A placement groove is provided on the surface of the control rod 3 facing the transmission assembly 100. The first reset member 5 is a reset torsion spring, which is arranged in the placement groove, and its two ends are respectively connected to the base 1 and the inner wall of the placement groove, so that when the second end of the control rod 3 rotates around its first end relative to the base 1, the reset torsion spring is deformed accordingly and generates an elastic force opposite to the movement trend of the control rod 3.

[0060] Optionally, the first transmission member 301 is configured as a sector tooth, and the second transmission member 10 is configured as a gear, the sector tooth is meshed with the gear, and the rotation radius of the sector tooth is greater than the rotation radius of the gear. By means of the meshing of the sector tooth and the gear, the connection between the damper 4 and the control rod 3 is achieved, with high transmission efficiency, long service life, stable transmission and high reliability.

[0061] like Figure 8As shown, the radius of the circle corresponding to the sector tooth is greater than the radius of the gear, so that within the arc length rotation range of the sector tooth, the gear can rotate multiple times. Moreover, the axial height of the sector tooth is greater than the axial height of the gear.

[0062] Optionally, the ratio of the contact height between the gear and the sector tooth to the axial height of the sector tooth is 1:3-1:2. The greater the contact height between the gear and the sector tooth, the greater the contact area between the two, and the greater the resistance to be overcome during the meshing rotation. The inventor has found through a large number of experiments that setting the height ratio within the above range can not only make the control rod 3 rotate slowly during the return process with the help of the damping effect of the damper 4, but also prevent the control rod 3 from being subjected to excessive resistance during the return process, causing the return process to be too slow, thereby causing the handle 9 to return too slowly.

[0063] In this embodiment, the control rod 3 and the sector gear are integrally injection molded. Figure 8 , Fig.10 As shown, according to the injection molding process requirements, an irregular protrusion 305 is formed at one end of the sector tooth, and a connecting hole 306 is provided through the protrusion 305. Fig.10 As shown, the top surface of the protrusion 305 is flush with the top surface of the sector tooth, and the height of the protrusion 305 is less than the height of the sector tooth, so gear teeth are also arranged below the protrusion 305. When the sector tooth rotates with the control rod 3, if the protrusion 305 rotates to a position corresponding to the gear, there will be no interference between the two, and the gear will mesh with the sector tooth below the protrusion 305.

[0064] Fig. 9 for Figure 2 Schematic diagram of the contact state between the control rod of the flat-out hidden external handle and the buffer member. Figure 8 , Fig. 9 As shown, optionally, the flat-out hidden outer handle further includes a buffer 11, which is fixedly connected to the base 1, and when the handle 9 covers the accommodating cavity 102, the control rod 3 abuts against the buffer 11. In this arrangement, when the handle 9 returns to the initial position, the control rod 3 contacts the buffer 11, and under the action of the buffer 11, the rotation speed gradually decreases to zero, rather than instantaneously decreasing to zero, which can further reduce the rebound sound.

[0065] In this embodiment, if Figure 8 , Fig. 9 As shown, the buffer 11 is a structural member with a trapezoidal cross section, and is made of a flexible material, such as rubber, so that when the control rod 3 contacts it, a part of the energy can be absorbed, and the rotation speed gradually becomes zero. Figure 8As shown, a protrusion 1101 is fixed on the end face of the buffer 11 facing the return direction of the control rod 3, which is also made of a flexible material. A slot 302 is set on the outer wall of the control rod 3. When the control rod 3 returns to a position close to the initial position, the protrusion 1101 is inserted into the slot 302, and the friction between the two slows down the rotation speed of the control rod 3. The length range of the protrusion 1101 corresponds to the buffering process. According to the actual application, the specific shape and size of the buffer 11 can be adjusted, and other flexible materials other than rubber can also be selected.

[0066] Fig.10 for Figure 2 The schematic diagram of the connection relationship between the shaft pin of the flat-out hidden external handle and the guide rail is shown. Fig.10 As shown, optionally, a guide rail 12 matching the moving track of the guide member 6 is arranged in the accommodating cavity 102, and the end of the guide member 6 facing away from the control rod is arranged in the guide rail 12, and the guide member 6 is slidably connected to the guide rail 12. This arrangement allows the guide member 6 to always move in the guide rail 12 of the preset track, preventing the guide member 6 from shaking during the movement, thereby making the track of the handle 9 indirectly connected to the guide member 6 more stable when it pops out / retracts.

[0067] In this embodiment, if Fig.10 As shown, the guide rail 12 is arranged on the inner wall of the bottom side of the base 1, and its extended form is the preset moving track of the guide member 6. The lower end of the guide member 6 is inserted into the guide rail 12, and the guide rail 12 constrains and limits it to prevent the guide member 6 from moving outside the preset moving track. The specific shape and size of the guide rail 12 and the specific setting position on the base 1 are adjusted according to the change of the preset moving track of the guide member 6.

[0068] Fig.11 for Figure 2 The top view of the base 1 of the flat hidden external handle is shown. Fig.10 , Fig.11 As shown, optionally, the control rod 3 is arranged on the outer side wall of the base 1, and the base 1 is penetrated with a guide hole 101 matching the moving track of the guide member 6, and the guide member 6 penetrates the guide hole 101. In this arrangement, through the cooperation between the guide hole 101 and the guide rail 12, the moving track of the guide member 6 is limited at both ends, further preventing the guide member 6 from shaking during the movement, thereby making the track of the handle 9 indirectly connected to the guide member 6 more stable when it is ejected / retracted.

[0069] In this embodiment, if Fig.10 As shown, the control rod 3 is arranged on the upper outer wall of the base 1, as shown in FIG. Fig.11As shown, the upper side wall of the base 1 is provided with a guide hole 101 along the preset moving track of the guide member 6, and the guide hole 101 is arranged corresponding to the guide rail 12. The lower end of the guide member 6 is arranged in the guide rail 12, and the upper end thereof passes through the guide hole 101 and is connected to the second end of the control rod 3. The guide hole 101 and the guide rail 12 jointly restrict the movement of the guide member 6. Further, as Figure 7 , Fig.10 As shown, a connecting member 303 is fixed to the outer wall of the control rod 3, and a connecting groove 304 is provided on the surface of the connecting member 303 facing the transmission assembly 100. The upper end of the guide member 6 passes through the guide through hole 101 and is inserted into the connecting groove 304, and is fixedly connected to the connecting groove 304 near the second end of the control rod 3. According to actual application conditions, the specific shape and size of the guide through hole 101 and the opening position on the base 1 are adjusted as the preset moving trajectory of the guide member 6 changes.

[0070] Fig.12 for Figure 2 Schematic diagram of the flat-out hidden external handle with the shaft pin passing through the guide hole of the base. Fig.12 As shown, optionally, a buffer block 13 is provided on the inner wall of the guide through hole 101 or / and the inner wall of the guide rail 12. When the control rod 3 drives the guide member 6 to return, the guide member 6 has a certain impact speed. The buffer block 13 is provided so that when the guide member 6 moves in the guide through hole 101 or the guide rail 12, the speed is reduced under the influence of the buffer block 13, the impact on the inner wall of the guide through hole 101 and the inner wall of the guide rail 12 is reduced, and the sound is reduced.

[0071] like Fig.12 As shown in the figure, the solid line indicates that the guide member 6 is in the pre-opening position, and the dotted line indicates that the guide member 6 is in the fully open position. In this embodiment, the buffer block 13 is made of a flexible material, is arranged on the inner wall of the guide through hole 101, and is fitted to the inner wall of the guide through hole 101 corresponding to the guide member 6 in the pre-opening position through interference fit. In this way, when the handle 9 returns from the fully open position to the pre-opening position, the guide member 6 rotates at a certain speed. Fig.12 The position of the middle dotted line returns to the position of the solid line and contacts the buffer block 13 instead of directly hitting the inner wall of the guide through hole 101, thereby reducing the noise. According to the actual application, the buffer block 13 can also be arranged on the inner wall of the guide rail 12, or on the inner walls of the guide through hole 101 and the guide rail 12, and the specific arrangement position of the buffer block 13 on the inner walls of the two can be adjusted.

[0072] Optionally, the transmission assembly 100 includes a front rotating arm 2, a second reset member (not shown), a rear pull rod 7 and a push rod 8. The first end of the front rotating arm 2 is rotatably connected to the base 1, and the second end of the front rotating arm 2 is rotatably connected to the first end of the handle 9; the first end of the second reset member is connected to the first end of the front rotating arm 2, and the second end of the second reset member is connected to the base 1; the first end of the rear pull rod 7 is rotatably connected to the guide member 6, and the second end of the rear pull rod 7 is rotatably connected to the second end of the handle 9; the push rod 8 is used to be connected to the driving member 21, and reciprocates under the drive of the driving member 21, and the front rotating arm 2 and the rear pull rod 7 are both located on the moving path of the push rod 8.

[0073] In the initial position, the handle 9 is in a retracted state and is flush with the door. The push rod 8 maintains a gap with the front rotating arm 2 and the rear pull rod 7. When the door needs to be opened, the driving member 21 is started, so that the driving member 21 drives the push rod 8 to move linearly toward the rear pull rod 7. During the movement of the push rod 8, it abuts against the front rotating arm 2 and the rear pull rod 7 respectively, pushing the front rotating arm 2 to rotate relative to the base 1 around its first end, causing the second reset member to deform, and pushing the rear pull rod 7 to rotate relative to the base 1 around the guide member 6. During the rotation, the second end of the front rotating arm 2 and the second end of the rear pull rod 7 connected to the handle 9 respectively push the handle 9 away from the base 1, that is, to move horizontally toward the outside of the vehicle body, pushing the handle 9 out, protruding and parallel to the plane where the door is located. At this time, the handle 9 is in the pre-opening position. During the rotation of the rear pull rod 7 relative to the guide member 6, the guide member 6 is driven to move according to the preset trajectory at the same time. The movement of the guide member 6 drives the control rod 3 connected to it to rotate relative to the base 1 around its first end, so that the first reset member 5 is also deformed. After the handle 9 is in the pre-open position, the second end of the handle 9 is manually pulled outward to rotate the handle 9 around its first end until it is in the fully open position, and the door lock outer pull wire connected to the second end of the control rod 3 is pulled to unlock the door lock. During this process, the rear pull rod 7 rotates with the handle 9, and the abutment relationship with the push rod 8 is released, and the control rod 3 continues to rotate around its first end through the guide member 6, and the front rotating arm 2 continues to rotate around its first end, and the second reset member and the first reset member 5 continue to deform. After the vehicle door is opened, the handle 9 is released. After the handle 9 loses the external force, the front rotating arm 2 rotates in the opposite direction around its first end under the elastic force generated by the deformation of the second reset member and the first reset member 5, thereby driving the first end of the handle 9 connected thereto to move toward the base 1; the control rod 3 rotates in the opposite direction around its first end, thereby driving the guide member 6 connected thereto to move in the opposite direction along a preset trajectory, thereby driving the rear pull rod 7 connected to the guide member 6 to move accordingly, and further driving the second end of the handle 9 connected to the rear pull rod 7 to move toward the base 1 accordingly, and under the elastic force of the second reset member and the first reset member 5, the handle 9 is restored to the pre-opening position flush with the vehicle door, and the rear pull rod 7 abuts against the push rod 8 again. When the handle 9 is restored from the fully open position to the pre-open position, the first transmission member 301 rotates synchronously with the control rod 3, and is connected to the damper 4 through a transmission connection with the second transmission member 10. The damper 4 can generate a return torque. Under the action of the damper 4, the control rod 3 rotates slowly, so that the guide member 6 and the rear pull rod 7 directly or indirectly connected thereto also move slowly, so that when the rear pull rod 7 returns to a state of abutting against the push rod 8, it will not collide quickly with the push rod 8, and will not produce excessive impact sound.After the handle 9 is restored to the pre-open position, the driving member 21 is started, so that the driving member 21 drives the push rod 8 to move in the reverse direction. Then, under the elastic force of the second reset member and the first reset member 5, the front rotating arm 2 continues to rotate in the reverse direction around its first end, and the control rod 3 continues to rotate in the reverse direction around its first end, thereby driving the guide member 6 and the rear pull rod 7 directly or indirectly connected thereto to continue to move in the reverse direction, and finally the handle 9 is retracted parallel to the door, and the base 1 is re-covered to be flush with the door. In the process of the handle 9 returning from the fully open position to the initial position, the control rod 3, the rear pull rod 7 and the handle 9 all rotate slowly under the action of the damper 4, and no excessive rebound sound is generated.

[0074] like Figure 2 , Figure 4-Figure 6 As shown, the front rotating arm 2 includes a first connecting arm 201 and a second connecting arm 202 which are nearly vertically connected. The free end of the first connecting arm 201 is the first end of the front rotating arm 2, and the free end of the second connecting arm 202 is the second end of the front rotating arm 2. The first end of the front rotating arm 2, i.e. the left end of the front rotating arm 2 in the figure is rotatably connected to the inner wall of the base 1 by means of a first axle pin. The second reset member is a reset torsion spring. The reset torsion spring is sleeved with the first axle pin, and the two ends are respectively connected to the front rotating arm 2 and the base 1, so that when the front rotating arm 2 rotates relative to the base 1 around the first axle pin, the reset torsion spring is deformed accordingly and generates an elastic force opposite to the movement trend of the front rotating arm 2. The second end of the front rotating arm 2, i.e. the lower right end of the front rotating arm 2 in the figure is rotatably connected to the left end of the handle 9 near the end face of the handle 9 by means of a second axle pin. The second end of the rear pull rod 7, i.e. Figure 4 The right end of the middle rear pull rod 7 is rotatably connected to the side of the handle 9 away from the end surface by means of a third shaft pin. Figure 7 The left end of the middle rear pull rod 7 is sleeved with a guide member 6 and is rotatably connected to the guide member 6. Figure 4-Figure 6 As shown, the push rod 8 is a straight rod as a whole, and the left end of the push rod 8 is connected to the driving member 21. In this embodiment, the driving member is set as a motor, and the motor is fixedly connected to the push rod 8 through a push rod to drive the push rod 8 to move back and forth in a straight line.

[0075] Fig.13 for Figure 4 The schematic diagram of the clearance fit between the push rod of the flat-out hidden external handle and the front rotating arm and the rear pull rod in the initial position is shown. Fig.13As shown, optionally, a first position A and a second position B are provided on the front rotating arm 2, and the first position A is closer to the second end of the front rotating arm 2 than the second position B, and a third position C is provided on the rear pull rod 7, and when the push rod 8 moves driven by the driving member 21, the first position A, the second position B and the third position C are respectively abutted against the push rod 8, and when the handle 9 covers the accommodating cavity 102, the gap between the first position A and the push rod 8 is smaller than the gap between the second position B and the push rod 8, and the gap between the second position B and the push rod 8 is smaller than the gap between the third position C and the push rod 8. This arrangement ensures that when the vehicle door is opened, the push rod 8 moves linearly under the drive of the driving member 21. Compared with the rear pull rod 7, the push rod 8 contacts the front rotating arm 2 first, which is conducive to the generation of instantaneous thrust for the front rotating arm 2. Moreover, the first position A on the front rotating arm 2 close to its second end contacts the push rod 8 earlier than the second position B, and the physical force arm is larger, and the instantaneous torque generated on the front rotating arm 2 is larger. When the push rod 8 pushes the front rotating arm 2, the instantaneous thrust is larger, thereby improving the ejection force of the outer handle.

[0076] like Fig.13 As shown, in this embodiment, the first position A and the second position B are both arranged on the first connecting arm 201 of the front rotating arm 2, and the surface of the first connecting arm 201 facing the push rod 8 is provided with a concave structure at the first position A and the second position B, and the corresponding position on the push rod 8 is provided with a convex structure. During the movement of the push rod 8, the corresponding concave structure and the convex structure cooperate and abut against each other. The first position A is close to the turning point between the first connecting arm 201 and the second connecting arm 202, and the second position B is far away from the second connecting arm 202, and is close to the first end of the front rotating arm 2 and the base 1 that can be rotatably connected. The third position C is the end of the rear pull rod 7 facing the push rod 8. In this embodiment, in the initial state, the gap between the first position A and the push rod 8 is 0.3-0.5mm, the gap between the third position C and the push rod 8 is 0.8-1.2mm, and the gap between the second position B and the push rod 8 is between the two. According to the actual application, the gaps between the first position A, the second position B, the third position C and the push rod 8 can be matched and adjusted.

[0077] Optionally, a buffer pad 14 is fixed to the part where the push rod 8 abuts against the third position C. The buffer pad 14 is provided so that when the handle 9 returns from the fully opened position to the pre-opened position, the rear pull rod 7 and the push rod 8 abut against each other again, they contact with the buffer pad 14 therebetween, slowing down the impact speed of the rear pull rod 7, so that the rear pull rod 7 and the push rod 8 abut against each other slowly instead of quickly, thereby reducing the impact noise.

[0078] like Figure 4-Figure 6 As shown, in this embodiment, the buffer pad 14 is fixed to the end of the push rod 8 facing the rear pull rod 7 and is made of a flexible material.

[0079] Optionally, the flat hidden outer handle further includes a sealing ring 15, which is circumferentially connected to the side of the accommodating cavity 102 facing the handle 9 and is clearance-matched with the handle 9. The sealing ring 15 is provided so as not to affect the normal movement of the handle 9 and prevent the internal structure of the outer handle from being exposed.

[0080] like Figure 1 As shown, in this embodiment, the sealing ring 15 is composed of hard glue 1501 and soft glue 1502, and is made by a two-color injection molding process. A snap-fit ​​structure is provided on the hard glue 1501, and the sealing ring 15 is installed on the base 1 using the snap-fit ​​structure. The soft glue 1502 is a hollow ring structure, the outer wall of which is connected to the hard glue 1501, and the inner wall is evenly matched with the handle 9, and the gap size is 0.8-1.5mm.

[0081] Optionally, the flat hidden outer handle further comprises a sealing cover plate 16, which is connected to the base 1 and covers the side of the accommodating cavity 102 facing away from the handle 9. This arrangement can improve the overall sealing performance of the outer handle.

[0082] like Figure 3 As shown, in this embodiment, a sealing cover plate 16 is provided on the side of the accommodating cavity 102 facing away from the handle 9. The sealing cover plate 16 matches the cross-sectional size and shape of the accommodating cavity 102, and is snap-fitted to the base 1 through a plastic snap structure. Depending on the actual application, the sealing cover plate 16 and the base 1 can be connected in any manner as long as the base 1 can be sealed.

[0083] Optionally, a drainage hole 17 is provided through the base 1. The drainage hole 17 is provided to facilitate the water flowing into the base 1 to be discharged to the outside smoothly, to prevent water accumulation, and to prevent the accumulated water from freezing in a freezing environment, thereby affecting the electric ejection of the handle 9.

[0084] In this embodiment, if Figure 3 As shown, a drainage hole 17 is formed through the lower side wall of the base 1. Fig.11 As shown, the guide rail 12 is also provided with a drainage hole 17. According to actual application conditions, the number of the drainage holes 17 and the specific opening positions on the base 1 can be adjusted.

[0085] Fig.14 for Figure 1 A schematic diagram of arranging a limit block on the handle of a flat-out hidden external handle is shown; Fig.15 for Figure 1 A schematic diagram showing the arrangement of the limit grooves in the base of the flat-out hidden external handle; Fig.16 for Fig.14 The limit block in the Fig.15 Schematic diagram of the limit slot in the. Figure 14-16As shown, optionally, a limit block 18 is fixed on the handle 9; a limit slot is provided in the accommodating cavity 102, and when the handle 9 is opened, the limit block 18 moves into the limit slot. When the handle 9 cannot be driven parallel to the door by the driving member 21, manual emergency start is required. When manually started, the first end of the handle 9 is pressed to make the handle 9 rotate relative to its first end around the second axle pin connected to the front rotating arm 2, so that the second end of the handle 9 tilts outward, and then the second end of the handle 9 is manually pulled to rotate at a large angle to open the door. During the rotation of the handle 9 relative to its first end, the limit block 18 on the handle 9 is inserted into the limit slot in the accommodating cavity 102 and moves along the limit slot to prevent the handle 9 from producing parallel displacement away from the door direction in addition to rotating around its first end.

[0086] In this embodiment, the first end of the handle 9, i.e. Fig.14 Limiting blocks 18 are fixed on both the front and rear sides of the left end of the middle handle 9. Fig.15 The upper and lower inner side walls of the middle base 1 are fixed with limit strips 19, and the limit strips 19 and the inner wall of the base 1 enclose a limit groove, such as Fig.16 As shown, during the manual door opening process, as the handle 9 rotates, the limit block 18 enters the limit groove and moves in the limit groove. When the handle 9 rotates to the door opening position, the limit block 18 abuts against the bent limit strip 19.

[0087] The present invention further provides a vehicle door, comprising the flat-out hidden outer handle of any one of the above embodiments.

[0088] With the vehicle door of the present invention, the control rod 3 automatically returns to its original position under the action of the first reset member 5, and drives the guide member 6 connected thereto to move in the opposite direction, thereby driving the handle 9 connected thereto to return to its original position. In the process of the handle 9 returning from the fully open position to the pre-open position and then returning from the pre-open position to the initial position, the control rod 3 rotates slowly with the help of the cooperation between the second transmission member 10 on the damper 4 and the first transmission member 301 on the outer wall of the control rod 3, thereby driving the guide member 6, the transmission assembly 100 and the handle 9 directly or indirectly connected thereto to rotate slowly, so that there will be no violent collision between the components of the transmission assembly 100, but slow contact, and no excessively loud impact sound will be generated. In addition, the control rod 3, the guide member 6, the transmission assembly 100 and the handle 9 move slowly, and the rebound sound is reduced, which can improve the customer's riding experience.

[0089] The present invention also provides a vehicle, comprising the vehicle door of the above embodiment.

[0090] With the vehicle of the present invention, the control rod 3 automatically returns to its original position under the action of the first reset member 5, and drives the guide member 6 connected thereto to move in the opposite direction, thereby driving the handle 9 connected thereto to return to its original position. In the process of the handle 9 returning from the fully open position to the pre-open position and then returning from the pre-open position to the initial position, the control rod 3 rotates slowly with the help of the cooperation between the second transmission member 10 on the damper 4 and the first transmission member 301 on the outer wall of the control rod 3, thereby driving the guide member 6, the transmission assembly 100 and the handle 9 directly or indirectly connected thereto to rotate slowly, so that there will be no violent collision between the components of the transmission assembly 100, but slow contact, and no excessively loud impact sound will be generated. In addition, the control rod 3, the guide member 6, the transmission assembly 100 and the handle 9 move slowly, and the rebound sound is reduced, which can improve the customer's riding experience.

[0091] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0092] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of the present invention, which should also be considered as the protection scope of the present invention.

Claims

1. A flat hidden external handle. It is characterized in that include: A base, wherein a receiving cavity is provided in the base; A transmission assembly, the transmission assembly is disposed in the accommodating cavity, is movably connected to the base, and is used for driving connection with the driving member; A handle, the handle is in driving connection with the transmission assembly and covers the accommodating cavity, and when the driving member drives the transmission assembly to reciprocate, the transmission assembly drives the handle to extend out of or retract into the accommodating cavity; A control rod, a first end of which is rotatably connected to the base, and an outer wall of the control rod is provided with a first transmission member; A damper, the damper is fixedly connected to the base, a second transmission member is provided on the damper, an input shaft of the damper is connected to the second transmission member, and the second transmission member is transmission-connected to the first transmission member; a first restoring member, wherein a first end of the first restoring member is connected to a first end of the control rod, and a second end of the first restoring member is connected to the base; A guide member is fixedly connected to the second end of the control rod and is transmission-connected to the transmission assembly.

2. The flat hidden external handle according to claim 1, Features: The first transmission member is configured as a sector tooth, and the second transmission member is configured as a gear. The sector tooth is meshedly connected with the gear, and a rotation radius of the sector tooth is greater than a rotation radius of the gear.

3. The flat hidden external handle according to claim 2, Features: The ratio of the contact height between the gear and the sector tooth to the axial height of the sector tooth is 1:3-1:

2.

4. The flat-out hidden external handle according to any one of claims 1 to 3, It is characterized in that Also includes: a buffer member, the buffer member is fixedly connected to the base, and when the handle covers the accommodating cavity, the control rod abuts against the buffer member; and / or, a sealing ring, the sealing ring being circumferentially connected to a side of the accommodating cavity facing the handle and having a clearance fit with the handle; and / or, a sealing cover plate, the sealing cover plate being connected to the base and covering a side of the accommodating cavity facing away from the handle; and / or, The base is provided with a drainage hole; and / or, A limiting block is fixed on the handle; a limiting groove is arranged in the accommodating cavity, and when the handle is opened, the limiting block moves into the limiting groove.

5. The flat-out hidden outer handle according to any one of claims 1 to 3, Features: A guide rail matching the moving track of the guide member is arranged in the accommodating cavity, one end of the guide member facing away from the control rod is arranged in the guide rail, and the guide member is slidably connected to the guide rail.

6. The flat-out hidden exterior handle according to claim 5, Features: The control rod is arranged on the outer side wall of the base, the base is penetrated by a guide through hole matching the moving track of the guide member, and the guide member passes through the guide through hole.

7. The flat-out hidden exterior handle according to claim 6, Features: The inner wall of the guide through hole and / or the inner wall of the guide slide rail is provided with a buffer block.

8. The flat-out hidden external handle according to any one of claims 1 to 3, It is characterized in that The transmission assembly comprises: A front rotating arm, wherein a first end of the front rotating arm is rotatably connected to the base, and a second end of the front rotating arm is rotatably connected to the first end of the handle; a second restoring member, wherein a first end of the second restoring member is connected to the first end of the front rotating arm, and a second end of the second restoring member is connected to the base; A rear pull rod, wherein a first end of the rear pull rod is rotatably connected to the guide member, and a second end of the rear pull rod is rotatably connected to a second end of the handle; A push rod is used to be drivingly connected to the driving member and reciprocate under the drive of the driving member. The front rotating arm and the rear pull rod are both located on the moving path of the push rod.

9. The flat-out hidden exterior handle according to claim 8, Features: The front rotating arm is provided with a first position and a second position, the first position being closer to the second end of the front rotating arm than the second position, and the rear pulling rod is provided with a third position, and when the push rod moves under the drive of the driving member, the first position, the second position and the third position are respectively abutted against the push rod, and when the handle covers the accommodating cavity, the gap between the first position and the push rod is smaller than the gap between the second position and the push rod, and the gap between the second position and the push rod is smaller than the gap between the third position and the push rod.

10. The flat-out hidden exterior handle according to claim 9, Features: A buffer pad is fixed to the portion of the push rod abutting against the third position.

11. A vehicle door, It is characterized in that It comprises the flat-out hidden outer handle according to any one of claims 1 to 10.

12. A vehicle, It is characterized in that The vehicle door comprises the vehicle door as claimed in claim 11.

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