Lifting mechanism and vehicle

Abstract

The application discloses a lifting mechanism and a vehicle, and relates to the field of vehicle decoration parts, and comprises a movement bracket, a driving mechanism, a clutch mechanism and a trigger mechanism, wherein the movement bracket is used to drive the decoration part to rise from a bottom end to a top end; the driving mechanism is drivingly connected with the movement bracket; the clutch mechanism has a locking state connected with the movement bracket and a release state disconnected with the movement bracket; in the release state, the decoration part and the clutch mechanism can accelerate to slide from the top end to a trigger position relative to the movement bracket; in the trigger position, the movement bracket can limit the decoration part and the clutch mechanism to continuously move at the original acceleration; and the trigger mechanism can send a work signal to make the driving mechanism act to drive the movement bracket to descend at a controlled speed, so as to control the decoration part to descend at a controlled speed. The technical scheme of the application reduces the noise of the vehicle logo during the rapid descending process when the vehicle logo is subjected to external force.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle ornaments, in particular to a lifting mechanism and a vehicle. BACKGROUND

[0002] In automobile design, ornaments, including but not limited to emblems, as an important element of brand identification, ornaments usually represent the corporate image and are exposed to the outside world, and usually have a certain value. When someone touches the ornament, the ornament is quickly lowered through the rapid drop function, that is, the potential energy and track guidance from the top end to the bottom end are used, and the cover plate is raised to replace the position of the ornament. Although this way has fast response speed, it is easy to produce impact noise in the rapid lowering process, and the user experience will be reduced. SUMMARY

[0003] The main purpose of the present application is to provide a lifting device and a vehicle, which aims to reduce the noise of the ornament during the rapid lowering process when subjected to external force and improve the user experience.

[0004] To achieve the above purpose, the embodiment of the present application provides a lifting mechanism, which comprises:

[0005] A moving bracket is used to drive the ornament to rise from the bottom end to the top end along a predetermined track;

[0006] A driving mechanism is drivingly connected to the moving bracket;

[0007] A clutch mechanism has a locking state connected to the moving bracket and a release state disconnected from the moving bracket; in the release state, the ornament and the clutch mechanism can accelerate sliding from the top end to a trigger position relative to the moving bracket under the action of its own gravity and / or elastic force; in the trigger position, the moving bracket can limit the ornament and the clutch mechanism to continue to move at the original acceleration; and

[0008] A trigger mechanism can send a work signal to make the driving mechanism act to drive the moving bracket to descend at a controlled speed, thereby controlling the ornament to descend at a controlled speed in the trigger position.

[0009] In an embodiment, the lifting mechanism further comprises a mounting bracket, the clutch mechanism is connected to the mounting bracket, and in the trigger position, the moving bracket limits the ornament and the clutch mechanism by supporting the mounting bracket.

[0010] In an embodiment, the lifting mechanism further comprises a positioning structure, the positioning structure is located on the surface of the mounting bracket facing the moving bracket, in the triggering position, the mounting bracket and the moving bracket abut against each other through the positioning structure, and triggering the triggering mechanism electrically controls the driving mechanism.

[0011] In an embodiment, the triggering mechanism is configured as a micro switch electrically connected with the driving mechanism.

[0012] The micro switch is arranged on the moving bracket, in the triggering position, the positioning protrusion abuts against the top surface of the moving bracket and triggers the micro switch; or, the micro switch is arranged on the positioning protrusion, in the triggering position, the positioning protrusion abuts against the top surface of the moving bracket and the moving bracket triggers the micro switch.

[0013] In an embodiment, the lifting mechanism further comprises a return device, the return device is arranged below the mounting bracket and abuts against the mounting bracket, forms the bottom end of the descending movement of the decorative piece, prevents the mounting bracket from driving the clutch mechanism to continue to descend, and the driving mechanism drives the moving bracket to continue to descend relative to the mounting bracket until the clutch mechanism is locked with the moving bracket.

[0014] In an embodiment, the return device comprises a return plate, the return plate is arranged below the moving bracket and abuts against the bottom surface of the mounting bracket.

[0015] In an embodiment, during the descending process of the moving bracket driven by the driving mechanism at a controlled speed, after the clutch mechanism and the return device abut against each other, the moving bracket continues to descend until the clutch mechanism and the moving bracket continue to be locked, and the driving mechanism stops outputting driving.

[0016] In an embodiment, the moving bracket has a guide sliding groove, the guide sliding groove faces the mounting bracket, the mounting bracket has a limiting guide rail, and the limiting guide rail is slidingly arranged in the guide sliding groove.

[0017] In an embodiment, the driving mechanism drives the moving bracket to ascend, the moving bracket drives the decorative piece to move from the bottom end to the top end through the clutch mechanism in the locked state, and when an external force acts on the decorative piece located at the top end along a preset manner, the clutch mechanism is in the released state.

[0018] In an embodiment, the driving mechanism comprises:

[0019] a driving motor; and

[0020] The first connecting rod structure is movably arranged, the driving motor is drivingly connected with the first connecting rod structure, and the first connecting rod structure is drivingly connected with the moving bracket to drive the moving bracket to move up and down

[0021] In an embodiment, the lifting mechanism further comprises:

[0022] a cover plate movably arranged; and

[0023] a second connecting rod structure movably arranged and drivingly connected with the cover plate; at the trigger position, the clutch mechanism is connected with the second connecting rod structure to drive the second connecting rod structure to drive the cover plate to move up, and when the cover plate moves up to the top end, the second connecting rod structure and the clutch mechanism are locked.

[0024] In an embodiment, the clutch mechanism comprises:

[0025] a movable seat movably connected with the decorative piece and arranged above the mounting bracket;

[0026] a resilient member arranged between the mounting bracket and the movable seat;

[0027] a clutch shaft movably penetrating through the mounting bracket, one end of the clutch shaft being connected with the movable seat;

[0028] a clutch hook rotationally connected with the mounting bracket, the other end of the clutch shaft being hingedly connected with the clutch hook; at the locked state, the clutch hook is connected with the moving bracket; the clutch shaft can be lowered to drive the clutch hook to rotate to release the connection between the clutch hook and the moving bracket at the released state.

[0029] To achieve the above object, the embodiment of the present application provides a vehicle, which comprises the lifting mechanism described above.

[0030] In the technical solution of this application, under normal use (i.e., when the decorative part is not subjected to external force), the clutch mechanism is fixedly connected to the motion bracket, so that the clutch mechanism and the motion bracket are fixed together. The drive mechanism drives the motion bracket to rise and fall at a uniform speed, while the decorative part and the clutch mechanism are fixedly connected, thereby achieving uniform rising and falling of the decorative part. When the decorative part is subjected to external force, the clutch mechanism and the motion bracket are released from their fixed position. Under the action of gravity, the clutch mechanism and the decorative part slide relative to the motion bracket and rapidly descend from the initial position to the trigger position. When the clutch mechanism and the decorative part descend to the trigger position, the motion bracket can support the decorative part and the clutch mechanism, limiting the clutch mechanism and the decorative part from continuing to descend rapidly under the action of gravity. The trigger mechanism sends a working signal to the drive mechanism, and the drive mechanism starts working, driving the motion bracket to descend at a controlled speed. Under the action of gravity of the decorative part and the clutch mechanism, the motion bracket will maintain the supporting state for the decorative part and the clutch mechanism, thereby driving the decorative part and the clutch mechanism to descend synchronously and uniformly with the motion bracket. In this way, when the decorative piece is subjected to external force, it first undergoes a rapid descent, then switches to a controlled descent phase controlled by the drive mechanism. This effectively reduces the enormous potential energy generated by the rapid descent, thereby reducing the resulting impact noise. Moreover, the entire descent process is smoother and safer, thus better protecting pedestrian safety and improving anti-theft performance. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the lifting mechanism embodiment of this application. Figure 1 Among them, the decorative parts are raised to the highest position;

[0033] Figure 2 for Figure 1 Another structural diagram;

[0034] Figure 3 This is a schematic diagram of the structure of the lifting mechanism embodiment of this application. Figure 2 In this process, the decorative elements and the clutch mechanism move to the trigger position;

[0035] Figure 4 for Figure 3 A magnified schematic diagram of part A in the middle section;

[0036] Figure 5 This is a schematic diagram of the structure of the lifting mechanism embodiment of this application. Figure 3Wherein, the decorative piece is lowered to the lowest position.

[0037] Figure 6 Structure diagram of another angle of the embodiment of the lifting mechanism of the present application Figure 4 Wherein, the return device contacts the clutch mechanism and the clutch mechanism and the movement bracket are locked.

[0038] Figure 7 Structure diagram of another angle of the embodiment of the lifting mechanism of the present application Figure 5

[0039] Figure 8 Structure diagram of another angle of the embodiment of the lifting mechanism of the present application Figure 5 Wherein, the relationship between the first linkage structure and the second linkage structure when the decorative piece is raised to the highest position.

[0040] Figure 9 Structure diagram of another angle of the embodiment of the lifting mechanism of the present application

[0041] Figure 10 Structure diagram of another angle of the embodiment of the lifting mechanism of the present application

[0042] Figure 11 Structure diagram of another angle of the embodiment of the lifting mechanism of the present application

[0043] Figure 12 Structure diagram of another angle of the embodiment of the lifting mechanism of the present application

[0044] Explanation of reference numerals:

[0045] 110, decorative piece; 120, cover plate;

[0046] 200, movement bracket; 210, guide sliding slot;

[0047] 300, driving mechanism; 310, driving motor; 320, first linkage structure; 321, first linkage; 322, second linkage; 323, third linkage; 324, fourth linkage; 3241, first straight line segment; 3242, first arc line segment; 3243, limiting protrusion; 3251, first driving point; 3252, second driving point; 3261, first rotation shaft; 3262, second rotation shaft; 327, fifth linkage; 328, first arc slot; 329, second arc slot;

[0048] 400, clutch mechanism; 410, mounting bracket; 411, limiting guide rail; 420, movable seat; 430, elastic member; 440, clutch shaft; 450, clutch hook; 460, transmission guide slot; 461, vertical guide slot; 462, horizontal guide slot;

[0049] 500, trigger mechanism; 510, touch switch;​

[0050] 600, positioning structure; 610, positioning protrusion;

[0051] 700, return device; 710, return supporting plate;

[0052] 800, second linkage structure; 810, transmission member; 811, first connecting portion; 812, second connecting portion; 813, third connecting portion; 814, fourth connecting portion; 820, first guide slot; 830, adapter rod; 840, crank; 850, second guide slot;

[0053] 900, auxiliary plate.

[0054] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the embodiments of the present application.

[0056] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0057] In addition, the description such as “first”, “second” and the like in the embodiments of the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first”, “second” can explicitly or implicitly include at least one of the features. In the description of the embodiments of the present application, the meaning of “plurality” is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0058] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms “connection”, “fixation” and the like should be understood in a broad sense, for example, “fixation” can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0059] In addition, the technical solutions among the various embodiments of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the embodiments of the present application.

[0060] The decorative part usually adopts a speed reduction mode of falling to the bottom to realize the descent of the decorative part when a pedestrian collision or a theft prevention trigger occurs. The inventor finds that although the above-mentioned mode can quickly realize the descent of the decorative part in order to meet the use requirement in an emergency, the speed reduction mode of falling to the bottom of the decorative part will cause a large potential energy to be accumulated at the end of the stroke, the potential energy including kinetic potential energy and / or elastic potential energy, which will produce a violent impact, and even can cause damage to the internal structure of the vehicle body or the decorative part itself, and can have a problem of a large noise.

[0061] Therefore, the embodiments of the present application provide a lifting mechanism for driving the decorative part to lift and descend. Specifically, the decorative part will first experience a rapid descent process after being subjected to an external force, and then be switched to a controlled speed descent stage controlled by the driving mechanism, including a uniform speed or deceleration descent stage, which can effectively reduce the large potential energy generated by the rapid descent, thereby reducing the impact noise generated thereby. Moreover, the subsequent descent process can realize a controllable descent speed through the driving mechanism, which is more stable and safe, thereby reducing the impact.

[0062] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings.

[0063] As shown in FIGS. 1 and 2, the embodiments of the present application provide a lifting mechanism for driving the decorative part 110 to lift and descend. Specifically, the decorative part 110 can be a vehicle logo. Alternatively, the vehicle logo is a three-dimensional vehicle logo. Of course, in other embodiments, the decorative part 110 can also be other decorative parts in the vehicle, such as a decorative part provided on the instrument panel in the vehicle. Figure 1 Figure 2 The mounting bracket 410 is provided below the decorative part 110 to provide support for the decorative part 110 and the clutch mechanism 400. It can be understood that the decorative part 110 and the clutch mechanism 400 are mounted on the mounting bracket 410.

[0064] The movement bracket 200 moves up and down along a preset track, and the preset track is constrained by the movement link in the present embodiment. Specifically, the lifting mechanism can further include an auxiliary plate 900 provided with a constraint groove, and the movement link cooperates with the constraint groove.

[0065] The movement bracket 200 moves up and down along a preset track, and the preset track is constrained by the movement link in the present embodiment. Specifically, the lifting mechanism can further include an auxiliary plate 900 provided with a constraint groove, and the movement link cooperates with the constraint groove.

[0066] ​The driving mechanism 300 drives the moving bracket 200. The driving mechanism 300 can also be a common mechanism that can drive components to lift, and is not limited to the moving linkage mechanism described in the embodiment.

[0067] The clutch mechanism 400 is connected to the decorative part 110. The decorative part 110 is supported by the mounting bracket 410, and the clutch mechanism 400 is connected to the mounting bracket 410. The clutch mechanism 400 has a locking state connected to the moving bracket 200 and a release state disconnected from the moving bracket 200. It can be understood that in the normal use state, the clutch mechanism 400 is connected to the moving bracket 200. When the clutch mechanism 400 is in the locking state, the clutch mechanism 400 and the decorative part 110 always follow the moving bracket 200 to move synchronously through the mounting bracket 410. When the decorative part 110 is subjected to external force, such as collision or movement, the clutch mechanism 400 and the moving bracket 200 are disconnected and in the release state. In the release state, the decorative part 110 and the clutch mechanism 400 can accelerate to slide from the initial position to the trigger position relative to the moving bracket 200 under the action of gravity and / or elastic force. It can be understood that in this stage, the decorative part 110 and the clutch mechanism 400 accelerate to descend under the action of gravity and / or elastic force. In the trigger position, as shown in Figure 3 、 Figure 4 、 Figure 6 The moving bracket 200 can support the decorative part 110 and the clutch mechanism 400 to limit the decorative part 110 and the clutch mechanism 400 to continue to move at the original acceleration.

[0068] The trigger mechanism 500 is electrically connected to the driving mechanism 300 or connected to the controller signal of the driving mechanism 300. In the trigger position, the trigger mechanism 500 can send a working signal to make the driving mechanism 300 act to drive the moving bracket 200 to descend and control the decorative part 110 to descend at a controlled speed. Alternatively, the trigger mechanism 500 can be a light touch switch 510, a Hall switch, a photoelectric switch, or a height sensor, etc., which is not limited herein.

[0069] In the technical scheme adopted in this embodiment, in the normal use state (i.e. when the decoration piece 110 is not subjected to external force), the clutch mechanism 400 connects the movement bracket 200 and the decoration piece 110, so that the decoration piece 110 and the movement bracket 200 are connected together and form an integral whole, and the movement bracket 200 is driven by the driving mechanism 300 to ascend and descend at a controlled speed, such as uniform speed. When the decoration piece 110 is subjected to external force, the clutch mechanism 400 and the movement bracket 200 are disconnected, and under the action of gravity and / or elastic force, the clutch mechanism 400 and the decoration piece 110 slide relative to the movement bracket 200, and accelerate from the initial position to the trigger position. When the clutch mechanism 400 and the decoration piece 110 descend to the trigger position, the movement bracket 200 can support the decoration piece 110 and the clutch mechanism 400, limit the decoration piece 110 and the clutch mechanism 400 to continue to descend under the action of gravity and / or elastic force, and the trigger mechanism 500 sends a working signal to the controller of the driving mechanism 300 or realizes the electrical connection of the driving mechanism 300, and the driving mechanism 300 starts to work and drives the movement bracket 200 to descend at a controlled speed, such as uniform speed or deceleration. Under the action of gravity of the decoration piece 110 and the clutch mechanism 400, the movement bracket 200 can keep the state of supporting the decoration piece 110 and the clutch mechanism 400, and then drive the decoration piece 110 and the clutch mechanism 400 to descend at a controlled speed synchronously with the movement bracket 200, such as uniform speed or deceleration. In this way, the decoration piece 110 will first experience an accelerated descending process after being subjected to external force, and then switch to descending at a controlled speed, such as uniform speed or deceleration, which can effectively reduce the huge potential energy generated by long-distance accelerated descending, thereby reducing the impact noise generated thereby. Moreover, the whole descending process is more stable and safe.

[0070] In an embodiment of the present application, with reference to Figure 3 、 Figure 9 、 Figure 7 and Figure 9The lifting mechanism further comprises a mounting bracket 410, the clutch mechanism 400 is connected with the mounting bracket 410, and in the triggering position, the moving bracket 200 supports the mounting bracket 410, thereby limiting the decorative part 110 and the clutch mechanism 400. It can be understood that the clutch mechanism 400 and the decorative part 110 are fixedly arranged on the mounting bracket 410, and the mounting bracket 410 can support the clutch mechanism 400 and the decorative part 110. In the locking state of the clutch mechanism 400, the mounting bracket 410 is connected with the moving bracket 200 as a whole through the clutch mechanism 400 and can move synchronously with the moving bracket 200. In the release state of the clutch mechanism 400, the mounting bracket 410 can move relative to the moving bracket 200, thereby driving the decorative part 110 and the clutch mechanism 400 to move until the mounting bracket 410 moves to the triggering position. At this time, the moving bracket 200 can be supported below or on the side of the mounting bracket 410, thereby limiting the mounting bracket 410 from continuing to descend, and limiting the decorative part 110 and the clutch mechanism 400.

[0071] In an embodiment of the present application, referring to Figure 2 The lifting mechanism further comprises a positioning structure 600, the positioning structure 600 is located on a surface of the mounting bracket 410 facing the moving bracket 200, in the triggering position, the mounting bracket 410 and the moving bracket 200 abut through the positioning structure 600, and the triggering mechanism 500 is electrically controlled to drive the driving mechanism 300. It can be understood that through the positioning structure 600 arranged, in the triggering position, the triggering mechanism 500 can be triggered, thereby controlling the driving mechanism 300 to work, shortening the time difference from detection to execution, and improving the response speed and processing efficiency of the whole system. In the triggering position, the mounting bracket 410 is limited by the positioning structure 600 and the moving bracket 200, that is, the moving bracket 200 supports the clutch mechanism 400 and the decorative part 110 through the positioning structure 600, thereby limiting the decorative part 110 and the clutch mechanism 400 from further descending.

[0072] In one embodiment, the positioning structure 600 comprises a first positioning structure arranged on the mounting bracket 410, and the mounting bracket 410 and the moving bracket 200 are in contact and limited by the positioning structure 600 in the trigger position, and the trigger mechanism 500 is fixedly connected with the first positioning structure, and the trigger mechanism 500 can send a working signal to drive the driving mechanism 300 to drive the moving bracket 200 to descend. It can be understood that in the trigger position, the mounting bracket 410 is limited by the positioning structure 600 and the moving bracket 200, that is, the moving bracket 200 supports the clutch mechanism 400 and the decorative piece 110 through the positioning structure 600, and the decorative piece 110 and the clutch mechanism 400 are limited to further descend, and the distance between the initial position and the trigger position is less than the distance between the initial position and the end position, so that the stroke of the accelerated descent is reduced, the potential energy accumulated in the stroke of the accelerated descent is reduced, the impact is reduced, and the noise is reduced. In the embodiment, the initial position is the unfolded position of the decorative piece 110, and the end position is the lowest position of the moving bracket 200, at which time the decorative piece 110 is retracted and the clutch mechanism 400 is in the locked state. When the mounting bracket 410 and the moving bracket 200 are limited by the positioning structure 600, the trigger mechanism 500 can be triggered to electrically control the driving mechanism 300, so that the time difference between detection and execution is greatly shortened, and the response speed and processing efficiency of the whole system are improved.

[0073] In another embodiment, the positioning structure 600 can further comprise a second positioning structure, which is a positioning plate arranged at the bottom end of the moving bracket 200 and protruding from the surface of the moving bracket 200 facing the clutch mechanism 400. The mounting bracket 410 descends to contact the positioning plate, so that the moving bracket 200 supports the clutch mechanism 400 and the decorative piece 110, and the accelerated descent phase is completed.

[0074] In one embodiment of the present application, referring to Figure 4 , Figure 6 , Figure 7 and Figure 10 , the positioning structure 600 comprises a positioning protrusion 610 arranged on the mounting bracket 410, the positioning protrusion 610 protrudes from the surface facing the moving bracket 200, and the trigger mechanism 500 is configured as a micro switch 510.

[0075] The micro switch 510 is arranged on the moving bracket 200, and in the trigger position, the positioning protrusion 610 abuts against the top surface of the moving bracket 200 and triggers the micro switch 510; or the micro switch 510 is arranged on the positioning protrusion 610, and in the trigger position, the positioning protrusion 610 abuts against the top surface of the moving bracket 200 through the micro switch 510.

[0076] In the embodiment, the positioning structure 600 comprises a positioning protrusion 610 arranged on the surface of the mounting bracket 410 facing the moving bracket 200. The positioning protrusion 610 can be arranged at the middle or top of the mounting bracket 410 or other positions according to the preset speed drop stroke. When the coupling mechanism 400 and the decorative piece 110 drop under the action of gravity and / or elastic force to the position where the positioning protrusion 610 abuts against the top surface of the moving bracket 200, or when the coupling mechanism 400 and the decorative piece 110 accelerate to drop under the action of gravity or elastic force to the position where the moving bracket 200 abuts against the positioning protrusion 610, the trigger position is reached, and the acceleration drop of the decorative piece 110 and the coupling mechanism 400 under the action of gravity and / or elastic force is completed.

[0077] In an embodiment, the trigger mechanism 500 is configured as a micro switch 510, and is electrically connected to the driving mechanism 300. When the coupling mechanism 400 and the decorative piece 110 drop to the trigger position, the positioning protrusion 610 or the moving bracket 200 can press the micro switch 510, and the micro switch 510 sends a working signal to the driving mechanism 300, and the driving mechanism 300 starts to work to drive the moving bracket 200 to drop at a controlled speed, thereby driving the decorative piece 110 and the coupling mechanism 400 to drop synchronously. Specifically, the micro switch 510 can be arranged on the positioning protrusion 610, and the moving bracket 200 can press the micro switch 510 when the positioning protrusion 610 abuts against the top surface of the moving bracket 200. Alternatively, the micro switch 510 is at least partially arranged on the surface of the positioning protrusion 610 facing the moving bracket 200. In other embodiments, the micro switch 510 can also be arranged on the top surface of the moving bracket 200, and the positioning protrusion 610 can press the micro switch 510 when the positioning protrusion 610 abuts against the top surface of the moving bracket 200, and the control of the driving mechanism 300 can also be achieved. Alternatively, the top surface of the moving bracket 200 can be provided with a mounting groove, and the micro switch 510 is arranged in the mounting groove and at least partially protrudes from the mounting groove. In this way, the positioning protrusion 610 abuts against the top surface of the moving bracket 200, and the micro switch 510 is triggered at the same time, and the driving mechanism 300 is synchronously controlled to work, so that the decorative piece 110 is switched from the acceleration drop to the controlled speed drop, the end impact energy of the decorative piece 110 is effectively reduced, and the risk of impact noise and mechanical damage is reduced.

[0078] In an embodiment of the present application, referring to Figure 1 The lifting mechanism further comprises a return device 700 arranged below the mounting bracket 410 to abut against the mounting bracket 410, form the bottom end of the descending movement of the decorative piece 110, prevent the mounting bracket 410 from driving the coupling mechanism 400 to continue to drop, and drive the moving bracket 200 to continue to drop relative to the mounting bracket 410 until the coupling mechanism 400 and the moving bracket 200 are locked.

[0079] Thus, by setting the reset device 700, the clutch mechanism 400 can be locked with the movement bracket 200 again, and located at the stowed position of the decorative part 110; when the movement bracket 200 is driven to rise by the driving mechanism 300, the decorative part 110 can rise synchronously, and the vehicle is exposed, and the decorative part 110 is located at the unfolded position, which can be the initial position. Specifically, the action process of the decorative part 110 is as follows: under the action of the driving mechanism 300, the movement bracket 200 drives the mounting bracket 410 to rise through the clutch mechanism 400, and moves to the unfolded position of the decorative part 110 according to the preset route. When an external force acts, the clutch mechanism 400 is unlocked with the movement bracket 200, the mounting bracket 410, the clutch mechanism 400 and the decorative part 110 accelerate to descend to the trigger position under the action of gravity and / or elastic force, the driving mechanism 300 is triggered to work, then the driving mechanism 300 drives the movement bracket 200 to descend at a controlled speed, and the mounting bracket 410, the clutch mechanism 400 and the decorative part 110 follow the movement bracket 200 to descend synchronously, until the reset device 700 and the mounting bracket 410 contact, the reset device 700 limits the mounting bracket 410, so that the clutch mechanism 400 and the decorative part 110 stop moving. At this time, the decorative part 110 descends to the stowed position of the decorative part 110, and the movement bracket 200 continues to descend at a controlled speed until the clutch mechanism 400 is locked with the movement bracket 200 again, and the movement bracket 200 stops descending, at this time, the movement bracket 200 moves to the lowest position, and the lowest position is the end position. Optionally, a position sensor can be arranged, the position sensor is arranged at the lowest position of the movement bracket 200, i.e. the end position, and the position of the movement bracket 200 is detected by the position sensor. When the movement bracket 200 is detected, it indicates that the movement bracket 200 has descended to the lowest position, and a signal is sent to the controller, and the driving mechanism 300 is controlled to stop working by the controller.

[0080] In an embodiment of the present application, with reference to Figure 3 、 Figure 5 、 Figure 6 and Figure 8The reset device 700 includes a reset support plate 710 arranged below the moving bracket 200 and abutting against the bottom surface of the clutch mechanism 400. Thus, when the clutch mechanism 400 follows the moving bracket 200 to descend to a predetermined position, the reset support plate 710 can support below the clutch mechanism 400, and the clutch mechanism 400 no longer follows the moving bracket 200 to descend until the moving bracket 200 moves to the clutch mechanism 400 and the moving bracket 200 is locked again, and the driving mechanism 300 stops working. At this time, the moving bracket 200 moves to the lowest position. When the decorative piece 110 needs to ascend, the driving mechanism 300 starts to work again, drives the moving bracket 200 to ascend, and then drives the mounting bracket 410, the decorative piece 110 and the clutch mechanism 400 to ascend synchronously.

[0081] It can be understood that when the decorative piece 110 is not subjected to external force, the clutch mechanism 400 keeps the locked state with the moving bracket 200, and the decorative piece 110 follows the moving bracket 200 to ascend and descend synchronously at a controlled speed under the driving of the driving mechanism 300.

[0082] In an embodiment of the present application, referring to Figure 10 and Figure 11 , the moving bracket 200 is provided with a guide sliding groove 210 facing the mounting bracket 410, and the mounting bracket 410 is provided with a limiting guide rail 411 slidingly arranged in the guide sliding groove 210. Thus, the speed drop path of the clutch mechanism 400 can be limited by the cooperation of the guide sliding groove 210 and the limiting guide rail 411, and the descent of the decorative piece 110 in the speed drop process is guided, so as to reduce the position deviation.

[0083] In an embodiment of the present application, the driving mechanism 300 drives the moving bracket 200 to ascend, and the moving bracket 200 drives the decorative piece 110 to move from the end position to the initial position through the clutch mechanism 400 in the locked state. When external force acts on the decorative piece 110 at the top end in a preset manner, the clutch mechanism 400 can be in the released state. Thus, when the decorative piece 110 is subjected to external force, the clutch mechanism 400 and the moving bracket 200 are disconnected, and the clutch mechanism 400 and the decorative piece 110 slide relative to the moving bracket 200 under the action of gravity and / or elastic force, and accelerate to descend from the initial position, which can prevent pinching hands and improve the use safety. Moreover, the decorative piece 110 can quickly descend, and also can play a role in preventing theft.

[0084] In an embodiment of the present application, referring to Figure 7 , the driving mechanism 300 includes:

[0085] a driving motor 310; and

[0086] The first linkage structure 320 is movably arranged, the driving motor 310 is drivingly matched with the first linkage structure 320, and the first linkage structure 320 is drivingly connected with the movement bracket 200 to drive the movement bracket 200 to ascend and descend at a controlled speed.

[0087] In the embodiment, the first linkage structure 320 can convert the rotary motion of the driving motor 310 into the linear ascending and descending motion of the movement bracket 200 through the articulated linkage of the linkage, can multi-stage decompose and amplify the power of the driving motor 310, and improves the force uniformity of the movement bracket 200 and the stability of the descending process. Moreover, the linkage structure has lower friction loss and higher transmission efficiency.

[0088] In an embodiment of the present application, referring to Figure 7 and Figure 8 , the first linkage structure 320 comprises:

[0089] The first linkage 321, one end of the first linkage 321 is coaxially connected with the rotating shaft of the driving motor 310 and is rotationally limited;

[0090] The second linkage 322, one end of the second linkage 322 is articulated with the driving motor 310, i.e. is articulated with the shell of the driving motor 310, and the first linkage 321 and the second linkage 322 are arranged side by side;

[0091] The third linkage 323, the other end of the first linkage 321 and the other end of the second linkage 322 are respectively articulated with the third linkage 323;

[0092] The fourth linkage 324, one end of the fourth linkage 324 is articulated with the movement bracket 200 to form a first driving point 3251, the other end of the fourth linkage 324, one end of the first linkage 321 away from the driving motor 310 and one end of the third linkage 323 are all articulated with a first rotating shaft 3261; and

[0093] The fifth linkage 327, one end of the fifth linkage 327 is articulated with the movement bracket 200 to form a second driving point 3252, the second driving point 3252 and the first driving point 3251 are located on the same vertical line, the other end of the fifth linkage 327, one end of the second linkage 322 away from the driving motor 310 and the other end of the third linkage 323 are all articulated with a second rotating shaft 3262.

[0094] Specifically, the first connecting rod 321 is coaxially connected with the rotating shaft of the driving motor 310 and can rotate synchronously with the rotating shaft of the driving motor 310. When the end of the first connecting rod 321 away from the driving motor 310 moves downward, the power is transmitted to the second connecting rod 322 through the third connecting rod 323, so that the second connecting rod 322 moves synchronously with the first connecting rod 321. At the same time, the end of the fourth connecting rod 324 away from the first driving point 3251 rotates downward around the first driving point 3251, and the end of the fifth connecting rod 327 away from the second driving point 3252 rotates downward around the second driving point 3252, thereby driving the movement bracket 200 to move downward. It can be understood that the rotary motion of the driving motor 310 is converted into the linear downward motion of the movement bracket 200 through the hinged cooperation between the first connecting rod 321, the second connecting rod 322 and the third connecting rod 323. The first driving point 3251 and the second driving point 3252 are located on the same vertical line and are hinged with the movement bracket 200 through the fourth connecting rod 324 and the fifth connecting rod 327, respectively, to form a symmetrical force transmission path. The torque output by the driving motor 310 is decomposed by the plurality of connecting rods and then acts on the movement bracket 200 synchronously through the first driving point 3251 and the second driving point 3252, thereby improving the uniformity of stress during the movement of the decorative part 110, effectively reducing the problems of unbalanced load or inclination caused by single-point driving, and further improving the stability of the movement.

[0095] In an embodiment of the present application, the second connecting rod 322 is arranged to be bent away from the first connecting rod 321; and / or, the first connecting rod 321 has a plurality of bent segments. In this way, by arranging the first connecting rod 321 and / or the second connecting rod 322 to be bent, the stress can be effectively dispersed, the structural failure caused by force concentration in a single direction can be prevented, the stability of the first connecting rod 321 and the second connecting rod 322 when bearing load can be improved, and the anti-interference ability and reliability of the entire driving system are enhanced.

[0096] In an embodiment of the present application, referring to Figure 7 and Figure 8 , the first connecting rod structure 320 further includes a first arc groove 328 and a second arc groove 329 arranged side by side, and the ends of the first arc groove 328 and the second arc groove 329 away from the driving motor 310 are close to each other;

[0097] The fourth connecting rod 324 includes a first straight segment 3241 and a first arc segment 3242, one end of the first straight segment 3241 is slidingly arranged in the first arc groove 328, the other end of the first straight segment 3241 is connected with one end of the first arc segment 3242 and is hinged with the movement bracket 200 to form the first driving point 3251, the first arc segment 3242 is provided with a limiting protrusion 3243 protruding towards the fifth connecting rod 327, the limiting protrusion 3243 is slidingly arranged in the second arc groove 329, and the other end of the first arc segment 3242 is hinged with the first rotating shaft 3261;

[0098] The fifth connecting rod 327 comprises a second arc segment, one end of the second arc segment is hinged to the movement bracket 200 to form a second driving point 3252, and the other end of the second arc segment is hinged to the second rotating shaft 3262.

[0099] Specifically, when the movement bracket 200 is driven to descend, the first connecting rod 321 can drive the end of the first arc segment 3242 hinged to the first rotating shaft 3261 to rotate upward, so that the end of the first straight segment 3241 slides along the first sliding arc groove, the limiting protrusion 3243 slides along the second arc groove 329, and the end of the second arc segment hinged to the second rotating shaft 3262 rotates upward. The first driving point 3251 and the second driving point 3252 are subjected to the downward movement force, thereby driving the movement bracket 200 to move downward. In this way, the end of the first straight segment 3241 of the fourth connecting rod 324 is slidably arranged in the first arc groove 328, and the limiting protrusion 3243 on the first arc segment 3242 is slidably arranged in the second arc groove 329, so that the fourth connecting rod 324 can move along the predetermined path under the action of the driving motor 310, thereby ensuring the accurate position control of the movement bracket 200 when descending. Compared with the traditional straight connecting rod design, higher flexibility and accuracy can be provided. In addition, the cooperation of the first arc groove 328 and the first straight segment 3241 and the cooperation of the second arc groove 329 and the first arc segment 3242 can form two guide rails to provide double support points, thereby further enabling the fourth connecting rod 324 to move along the predetermined path, and improving the reliability of the movement of the movement bracket 200. Moreover, when the first straight segment 3241 of the fourth connecting rod 324 slides along the first arc groove 328 and the limiting protrusion 3243 slides along the second arc groove 329, the second arc segment can provide a clearance for the end of the first arc segment 3242 close to the first rotating shaft 3261, and the first arc segment 3242 can provide a clearance for the end of the second arc segment hinged to the movement bracket 200, thereby preventing the third connecting rod 323 and the fourth connecting rod 324 from interfering with each other during movement, and maximizing the use of the internal space of the vehicle body to achieve a larger stroke with a smaller volume.

[0100] It should be noted that the descending or ascending of the movement bracket 200 can be realized by switching the forward and reverse rotation of the driving motor 310. The ascending process is opposite to the descending process, and will not be described in detail.

[0101] In an embodiment of the present application, referring to Figure 2 , the lifting mechanism further comprises:

[0102] The cover plate 120 is movably arranged. Optionally, the cover plate 120 can be a planar vehicle logo. Of course, in other embodiments, a planar vehicle logo can also be installed on the cover plate 120. In one embodiment, the cover plate 120 is movably connected with the hood of the vehicle; and

[0103] The second connecting rod structure 800 is movably arranged and in driving connection with the cover plate 120. In the triggering position, the clutch mechanism 400 is connected with the second connecting rod structure 800 to guide the second connecting rod structure 800 to drive the cover plate 120 to rise, and when the cover plate 120 rises to the top end, the second connecting rod structure 800 and the clutch mechanism 400 are locked.

[0104] Specifically, the cover plate 120 arranged can cover the opening of the vehicle hood surface after the decorative part 110 is lowered. Moreover, in the triggering position, the mounting bracket 410 is in contact with the second connecting rod structure 800 to exert a force on the second connecting rod structure 800 to make the second connecting rod structure 800 move, thereby driving the cover plate 120 to rise to cover the opening of the vehicle hood along with the movement of the mounting bracket 410, improving the appearance of the vehicle body. It can be understood that through the cooperation of the mounting bracket 410 and the second connecting rod structure 800, the cover plate 120 is raised at the same time as the second section of the decorative part 110 is lowered, forming a bidirectional synchronous movement, simplifying the overall structure and improving the operation efficiency. In the embodiment, when the cover plate 120 moves to the top end position, the cover plate 120 exposes the vehicle hood, at this time, the cover plate 120 is unfolded, and the second connecting rod structure 800 is locked with the clutch mechanism 400. In this way, the driving mechanism 300 drives the clutch mechanism 400 to rise, and the clutch mechanism 400 drives the cover plate 120 to lower through the second connecting rod structure 800 until the clutch mechanism 400 is disconnected with the second connecting rod structure 800.

[0105] In an embodiment of the present application, referring to Figure 5 、 Figure 7 and Figure 8 , the second connecting rod structure 800 comprises:

[0106] The transmission member 810 has a first connecting portion 811 and a second connecting portion 812 arranged at intervals, and the first connecting portion 811 is fixedly connected with the cover plate 120;

[0107] The first guide slot 820 is arranged for the second connecting portion 812 to slide in;

[0108] The adapter rod 830 is hingedly connected at one end with the second connecting portion 812;

[0109] The crank 840 is rotatably arranged, one end of the crank 840 is used for connecting the clutch mechanism 400, and the other end of the crank 840 is hingedly connected with the other end of the adapter rod 830.

[0110] Specifically, in the triggering position, one end of the crank 840 is in contact with the mounting bracket 410, and as the clutch mechanism 400 descends, the crank 840 rotates, so that the end of the crank 840 away from the clutch mechanism 400 moves upward, and the force is transmitted to the adapter rod 830. Through the transmission of the adapter rod 830, the second connecting portion 812 of the transmission member 810 moves upward along the first guide slot 820, thereby driving the cover plate 120 to rise. It can be understood that the movement of the second connecting portion 812 can be guided through the first guide slot 820, thereby realizing the upward movement of the cover plate 120. That is, when the clutch mechanism 400 drives the crank 840 to rotate, the adapter rod 830 can convert the rotary motion into the linear motion of the second connecting portion 812 of the transmission member 810 along the first guide slot 820, so that the movement process of the cover plate 120 is more smooth and smooth, reduces the vibration and noise that may be generated, and improves the operation stability of the system.

[0111] In an embodiment of the present application, referring to Figure 5 and Figure 7 , the second connecting rod structure 800 further comprises a second guide slot 850, and the transmission member 810 further has a third connecting portion 813 and a fourth connecting portion 814 which are arranged at intervals, and the third connecting portion 813 and the fourth connecting portion 814 are both slidingly arranged in the second guide slot 850. Optionally, the first guide slot 820 and the second guide slot 850 are both arranged on the auxiliary plate 900.

[0112] Specifically, in order to avoid the interference of the cover plate 120 to the movement of the decorative part 110, in the normal use state of the decorative part 110, the cover plate 120 is inclinedly arranged in the interior of the vehicle body. In order to improve the accuracy of the cover plate 120 covering the opening of the hood of the vehicle after rising, the second guide slot 850 is arranged in the present embodiment, the second guide slot 850 and the first guide slot 820 are both arranged in an arc shape and protrude away from the decorative part 110, the second connecting portion 812, the third connecting portion 813 and the fourth connecting portion 814 form a triangular structure, and the first connecting portion 811 is arranged between the third connecting portion 813 and the second connecting portion 812. The second connecting portion 812 of the transmission member 810 will also move close to the decorative part 110 in the process of rising along the first guide slot 820, and the third connecting portion 813 of the transmission member 810 will also move close to the decorative part 110 when rising along the second guide slot 850, so that the cover plate 120 can gradually change from the inclined state to the horizontal state, thereby better covering the opening of the hood of the vehicle and ensuring the aesthetic appearance.

[0113] In an embodiment, referring to Figure 7 and Figure 10The mounting bracket 410 is provided with a transmission guide groove 460, which includes a vertical guide groove 461 and a horizontal guide groove 462 in communication with the vertical guide groove 461. The horizontal guide groove 462 is located above the vertical guide groove 461 and extends horizontally. When the clutch mechanism 400 is lowered, one end of the crank 840 slides from the vertical guide groove 461 to the horizontal guide groove 462 through a roller, and is clamped with the horizontal guide groove 462. That is, when the clutch mechanism 400 is lowered to a predetermined position, the roller provided on one end of the crank 840 is in contact with the vertical guide groove 461. As the clutch mechanism 400 continues to be lowered, the roller enters the vertical guide groove 461 and slides along the vertical guide groove 461 until it slides to the horizontal guide groove 462. In the process of the roller moving along the transmission guide groove 460, the crank 840 rotates, and in turn drives the cover plate 120 to rise through the adapter rod 830 and the transmission member 810.

[0114] The lowering process of the cover plate 120 is opposite to the rising process, and will not be described in detail. In addition, when the clutch mechanism 400 is raised to another predetermined distance, the roller is separated from the vertical guide groove 461. At this time, the cover plate 120 is lowered to the original position. Due to the gravity of the cover plate 120 and the restriction of the first guide groove 820 and the second guide groove 850, the crank 840 will not rotate autonomously and always remain in the original state until the clutch mechanism 400 is lowered to the vertical guide groove 461 in contact with the roller.

[0115] It should be noted that in the locked state of the clutch mechanism 400, the driving mechanism 300 works, and the decorative piece 110 and the moving bracket 200 can be driven to descend at a controlled speed, and in this process, the decorative piece 110 will not produce a speed drop process under its own gravity. In addition, when the decorative piece 110 descends at a constant speed to contact the second linkage structure 800 with the clutch mechanism 400, the cover plate 120 can be driven to rise through the transmission action of the second linkage structure 800. That is, whether the decorative piece 110 descends after being subjected to external force or descends under the drive of the driving mechanism 300 without external force, the cover plate 120 can be driven to rise. However, when the decorative piece 110 is subjected to external force, the clutch mechanism 400 is unlocked with the moving bracket 200, the clutch mechanism 400 and the decorative piece 110 descend to the trigger position under the action of gravity, and at this time, the clutch mechanism 400 just contacts the second linkage structure 800; when the decorative piece 110 is not subjected to external force and directly descends under the drive of the driving mechanism 300, the moving bracket 200, the clutch mechanism 400 and the decorative piece 110 descend at a controlled speed, and until the clutch mechanism 400 descends to contact the second linkage structure 800, the cover plate 120 is driven to rise through the second linkage structure 800. In addition, when the clutch mechanism 400 descends to contact the second linkage structure, because the clutch mechanism 400 and the decorative piece 110 do not descend under their own gravity, they will not move to the trigger position relative to the moving bracket 200, and the trigger mechanism 500 will not be triggered to send a work signal.

[0116] In an embodiment of the present application, referring to Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 12 , the clutch mechanism 400 comprises:

[0117] The movable seat 420 is connected with the decorative piece 110 and is arranged above the mounting bracket 410. Specifically, the decorative piece 110 and the movable seat 420 are fixedly connected;

[0118] The elastic member 430 is located between the mounting bracket 410 and the movable seat 420;

[0119] The clutch shaft 440 movably penetrates the mounting bracket 410, and one end of the clutch shaft 440 is connected with the movable seat 420;

[0120] The clutch hook 450 is rotatably connected with the mounting bracket 410, and the other end of the clutch shaft 440 is hingedly connected with the clutch hook 450; in the locked state, the clutch hook 450 is connected with the moving bracket 200, for example, can be clamped and fixed together; the clutch shaft 440 can be lowered to make the clutch hook 450 rotate to release the connection between the clutch hook 450 and the moving bracket 200 in the released state when overcoming the elastic force of the elastic member 430.

[0121] Specifically, when the decoration piece 110 is subjected to an external force, the decoration piece 110 is subjected to a downward force, the force is transmitted to the movable seat 420, under the downward force, the movable seat 420 moves downward while compressing the elastic piece 430, the clutch shaft 440 descends synchronously with the movable seat 420, drives the clutch hook 450 to rotate, so that the clutch hook 450 is disconnected with the movable bracket 200, the mounting bracket 410 can slide relative to the movable bracket 200, at this time, the clutch hook 450 abuts against the surface of the movable bracket 200 facing the mounting bracket 410, and slides along the movable bracket 200. After the external force disappears, although the elastic piece 430 has a springback force, so that the clutch hook 450 has a tendency to rotate, but since the clutch hook 450 abuts against the surface of the movable bracket 200 and cannot rotate, until the mounting bracket 410 rises, the clutch hook 450 is separated from the surface of the mounting bracket 410 facing the decoration piece 110, the clutch hook 450 rotates under the action of the elastic force of the elastic piece 430, and is clamped on the top surface of the movable bracket 200. Under the action of the gravity of the decoration piece 110 and the movable seat 420 and the elastic force of the elastic piece 430, the clutch shaft 440 keeps a fixed balanced state, the clutch hook 450 also does not rotate, and abuts against the top surface of the movable bracket 200, so that the clutch mechanism 400 is in a locked state with the movable bracket 200. Alternatively, the top surface of the movable bracket 200 can be provided with a clutch groove, and the clutch hook 450 can cooperate with the clutch groove. In this way, the pre-tightening force can be applied through the setting of the elastic piece 430, the rigid connection of the clutch hook 450 and the movable bracket 200 is kept, the mounting bracket 410 and the movable bracket 200 are in a locked state, and the position of the decoration piece 110 is stable when not triggered. When a collision or a pedestrian hard-bending triggers an emergency, the elastic force of the elastic piece 430 can be overcome to make the clutch shaft 440 descend, drive the clutch hook 450 to rotate to disconnect with the movable bracket 200, so as to enter a release state, so as to quickly respond and complete the conversion process from locking to releasing, and provide timely and effective measures for pedestrian collision protection or theft prevention.

[0122] It should be pointed out that when the clutch mechanism 400 is locked with the movable bracket 200 again through the reset device 700, the reset device 700 abuts against the lower side of the mounting bracket 410, thereby limiting the mounting bracket 410 and the decoration piece 110 from continuing to descend with the movable bracket 200, and realizing the abutting of the clutch hook 450 against the top surface of the movable bracket 200.

[0123] Alternatively, the transmission guide groove 460 is arranged on the mounting bracket 410.

[0124] To achieve the above object, the embodiment of the present application provides a vehicle, which comprises the lifting mechanism described above. Specifically, the specific structure of the lifting mechanism refers to the above embodiment. Since the vehicle adopts all the technical solutions of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0125] The above description is only exemplary embodiments of the present application, and does not limit the patent scope of the embodiments of the present application. Any equivalent structural transformation made by using the content of the embodiments of the present application and the drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the embodiments of the present application.

Claims

1. A lifting mechanism capable of lifting a trim piece, characterized by, The lifting mechanism comprises: a moving bracket for driving the decoration piece to ascend along a preset track from a bottom end to a top end; a driving mechanism connected to the moving bracket; a clutch mechanism having a locking state connected to the moving bracket and a release state disconnected from the moving bracket; in the release state, the decoration piece and the clutch mechanism can slide from the top end to a trigger position under the action of gravity and / or elastic force; in the trigger position, the moving bracket can limit the decoration piece and the clutch mechanism to continue to move at the original acceleration; and a trigger mechanism capable of sending a work signal to the driving mechanism to drive the moving bracket to descend at a controlled speed and control the decoration piece to descend at a controlled speed in the trigger position. The lifting mechanism further comprises a mounting bracket, the clutch mechanism is connected to the mounting bracket, and in the trigger position, the moving bracket limits the decoration piece and the clutch mechanism by supporting the mounting bracket. The lifting mechanism further comprises a reset device arranged below the mounting bracket and abutting against the mounting bracket to form a bottom end of the descending movement of the decoration piece, prevent the mounting bracket from driving the clutch mechanism to continue to descend, and drive the moving bracket to continue to descend relative to the mounting bracket until the clutch mechanism is locked with the moving bracket.

2. The lifting mechanism of claim 1, wherein, The lifting mechanism further comprises a positioning structure on the surface of the mounting bracket facing the moving bracket, the mounting bracket and the moving bracket abut against each other through the positioning structure in the trigger position, and the trigger mechanism triggers the driving mechanism.

3. The lifting mechanism of claim 2, wherein, The positioning structure comprises a positioning protrusion arranged on the mounting bracket, and the trigger mechanism is configured as a micro switch electrically connected to the driving mechanism. The micro switch is arranged on the moving bracket, and in the trigger position, the positioning protrusion abuts against the top surface of the moving bracket and triggers the micro switch; or the micro switch is arranged on the positioning protrusion, and in the trigger position, the positioning protrusion abuts against the top surface of the moving bracket and the moving bracket triggers the micro switch.

4. The lift mechanism of claim 1, wherein, The reset device comprises a reset plate arranged below the moving bracket and abutting against the bottom surface of the mounting bracket.

5. The lifting mechanism of claim 4, wherein, During the process of the driving mechanism driving the moving bracket to descend at a controlled speed, after the clutch mechanism and the reset device abut against each other, the moving bracket continues to descend until the clutch mechanism is continuously locked with the moving bracket, and the driving mechanism stops outputting driving.

6. The lift mechanism of claim 1, wherein, The moving bracket has a guide sliding groove facing the mounting bracket, and the mounting bracket has a limiting guide rail slidingly arranged in the guide sliding groove.

7. The lift mechanism of claim 1, wherein, The driving mechanism drives the moving bracket to ascend, and the moving bracket drives the decoration piece to move from the bottom end to the top end through the clutch mechanism in the locking state; when an external force acts on the decoration piece at the top end along a preset manner, the clutch mechanism is in the release state.

8. The lifting mechanism of any one of claims 1 to 7, wherein, The driving mechanism comprises: a driving motor; and a first linkage structure movably arranged, the driving motor being in driving cooperation with the first linkage structure, the first linkage structure being in transmission connection with the moving bracket to drive the moving bracket to move up and down.

9. The lifting mechanism of claim 8, wherein, The lifting mechanism further comprises: a cover plate movably arranged; and a second linkage structure movably arranged and in transmission connection with the cover plate, at the trigger position, the clutch mechanism being in connection with the second linkage structure to drive the second linkage structure to move the cover plate up, and when the cover plate is moved to the top end, the second linkage structure and the clutch mechanism are locked.

10. The lift mechanism of claim 1, wherein, The clutch mechanism comprises: a movable seat connected with the decorative piece and arranged above the mounting bracket; a resilient member arranged between the mounting bracket and the movable seat; a clutch shaft movably penetrating the mounting bracket, one end of the clutch shaft being connected with the movable seat; a clutch hook in rotational connection with the mounting bracket, the other end of the clutch shaft being hingedly connected with the clutch hook, at the locked state, the clutch hook being in connection with the moving bracket, the clutch shaft being able to be lowered to make the clutch hook rotate to release the connection between the clutch hook and the moving bracket at the released state.

11. A vehicle characterized by comprising: The vehicle comprises the lifting mechanism as claimed in any one of claims 1 to 10.

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